From hadas.judah at gmail.com  Mon Jan  1 03:24:15 2018
From: hadas.judah at gmail.com (VTKJunky)
Date: Mon, 1 Jan 2018 01:24:15 -0700 (MST)
Subject: [vtkusers] Setting vtkImageData from regular float array
Message-ID: <1514795055423-0.post@n5.nabble.com>

I have float array which represents a 2-D image. I'd like to set it into
vtkImageData, but can't work out how to do this. The problem is, all the
examples use a vtkReader to read in the data, I already have the data.

 
Any help would be greatly appreciated,
Thanks! 




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From g.bogle at auckland.ac.nz  Mon Jan  1 04:20:19 2018
From: g.bogle at auckland.ac.nz (Gib Bogle)
Date: Mon, 1 Jan 2018 09:20:19 +0000
Subject: [vtkusers] Setting vtkImageData from regular float array
In-Reply-To: <1514795055423-0.post@n5.nabble.com>
References: <1514795055423-0.post@n5.nabble.com>
Message-ID: <1514798416910.77466@auckland.ac.nz>

There is probably a better way, but one way is to create an ITK image then convert it to a VTK image:

https://itk.org/ITKExamples/src/Bridge/VtkGlue/ConvertAnitkImageTovtkImageData/Documentation.html

It is easy to create an ITK image, allocate the buffer then copy your data into the buffer.  Of course this requires you to have ITK installed.
________________________________________
From: vtkusers <vtkusers-bounces at vtk.org> on behalf of VTKJunky <hadas.judah at gmail.com>
Sent: Monday, 1 January 2018 9:24 p.m.
To: vtkusers at vtk.org
Subject: [vtkusers] Setting vtkImageData from regular float array

I have float array which represents a 2-D image. I'd like to set it into
vtkImageData, but can't work out how to do this. The problem is, all the
examples use a vtkReader to read in the data, I already have the data.


Any help would be greatly appreciated,
Thanks!




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
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From ben.boeckel at kitware.com  Mon Jan  1 09:53:07 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Mon, 1 Jan 2018 09:53:07 -0500
Subject: [vtkusers] Many VTK build tests fail when run from
 Jenkins/Bamboo or VNC display,
 even when DISPLAY is set to good opengl-enabled display
In-Reply-To: <13811c29-73cd-f4b5-5e59-c527ad063946@internode.on.net>
References: <fbe913e7-fb3b-c281-937e-d3f64acb1a66@internode.on.net>
 <20171222155053.GB13083@megas.kitware.com>
 <a74e9456-c6f1-fe5a-5c89-7f29e1c0648b@internode.on.net>
 <20171227134646.GA13765@megas.kitware.com>
 <13811c29-73cd-f4b5-5e59-c527ad063946@internode.on.net>
Message-ID: <20180101145307.GB23312@megas.kitware.com>

On Mon, Jan 01, 2018 at 13:58:17 +1030, John wrote:
> MESA_GL_VERSION_OVERRIDE=3.2 made a huge difference to running the tests
> on vnc.
> 
> With the override set, I'm able to run tests on vnc with only 102
> failures, and most of those failures are from the TestGPURayCast group.
> So there's obviously something about that group which doesn't like the
> VNC/Mesa, but almost everything else is good.

Your Mesa build probably lacks floating point texture support. Most
distros disable it due to patent licensing issues. Building it yourself
(assuming a license) would suffice. I'd recommend *not* overwriting the
system Mesa, but using LD_LIBRARY_PATH instead.

> I do find this situation incredibly frustrating and utterly depressing
> though. Once again, I wonder why I ever began to use Linux. What sort of
> utter garbage is this, when having a monitor turn off due to DPMS
> suddenly breaks applications?!?!

This is nvidia behavior, not Linux/Mesa/etc. behavior (I have no such
issues with the nouveau driver). Their driver "optimize" on-screen draws
that aren't actually being displayed by just not doing them. You can see
this if you overlap a window partially on top of a test window and see a
black rectangle in that area. There may be some obscure setting in their
settings app to disable this. If so, I'd like to know about it as well
;) (I haven't been in there in ages, so it may be new).

--Ben

From ben.boeckel at kitware.com  Mon Jan  1 09:56:18 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Mon, 1 Jan 2018 09:56:18 -0500
Subject: [vtkusers] issue on Visual Studio 2015 vtkNetDCF and external
 library HDF5 HL
In-Reply-To: <CY4PR18MB1207CCED19537C2156600E74871A0@CY4PR18MB1207.namprd18.prod.outlook.com>
References: <CY4PR18MB1207CCED19537C2156600E74871A0@CY4PR18MB1207.namprd18.prod.outlook.com>
Message-ID: <20180101145618.GC23312@megas.kitware.com>

On Sat, Dec 30, 2017 at 17:59:27 +0000, Waldo Valenzuela wrote:
> I am compiling VTK 8.1 with external HDF5 on Windows, Linux and Mac.
> Linux and Mac no problem, BUT in Windows with Visual Studio 2015, I
> have the following LINK errors when the vtkNetDCF library is compiled:
> 
> libhdf5_hl.lib(H5DS.obj) : error LNK2019: unresolved external symbol H5T_STD_REF_OBJ_g referenced in function H5DS_get_REFLIST_type
> 1>libhdf5_hl.lib(H5LT.obj) : error LNK2019: unresolved external symbol H5T_STD_REF_DSETREG_g referenced in function H5LT_dtype_to_text
> 1>libhdf5_hl.lib(H5LT.obj) : error LNK2019: unresolved external symbol H5T_FORTRAN_S1_g referenced in function H5LT_dtype_to_text
> 1>libhdf5_hl.lib(H5LTparse.obj) : error LNK2001: unresolved external symbol H5T_FORTRAN_S1_g
> 1>libhdf5_hl.lib(H5LT.obj) : error LNK2019: unresolved external symbol H5T_NATIVE_LONG_g referenced in function H5LT_dtype_to_text
> 1>libhdf5_hl.lib(H5LTparse.obj) : error LNK2001: unresolved external symbol H5T_NATIVE_LONG_g
> 1>libhdf5_hl.lib(H5LT.obj) : error LNK2019: unresolved external symbol H5T_NATIVE_ULONG_g referenced in function H5LT_dtype_to_text
> 1>libhdf5_hl.lib(H5LTparse.obj) : error LNK2001: unresolved external symbol H5T_NATIVE_ULONG_g
> 
> Any idea what is this error is about, I have to compile HDF5 with an special option?

The netcdf in VTK right now uses HDF5's 1.6 API, so you can't configure
it with HDF5_ENABLE_DEPRECATED_SYMBOLS=OFF.

Though looking at the error, it seems that libhdf5 is missing some
symbols that libhdf5_hl is expecting to exist. What HDF5 are you
building?

--Ben

From aron.helser at kitware.com  Mon Jan  1 10:32:23 2018
From: aron.helser at kitware.com (Aron Helser)
Date: Mon, 1 Jan 2018 10:32:23 -0500
Subject: [vtkusers] Setting vtkImageData from regular float array
In-Reply-To: <1514798416910.77466@auckland.ac.nz>
References: <1514795055423-0.post@n5.nabble.com>
 <1514798416910.77466@auckland.ac.nz>
Message-ID: <CAF2skS7z4-yNaDiyCoHm8N967qf7rWxd4aHmM_S+ZwOEEMj8qw@mail.gmail.com>

HI!
Check out this example:
https://lorensen.github.io/VTKExamples/site/Cxx/ImageData/ImageIteratorDemo/

it shows how to iterate through image data and modify it's value. You can
assign values from your float array.
HTH,
Aron

On Mon, Jan 1, 2018 at 4:20 AM, Gib Bogle <g.bogle at auckland.ac.nz> wrote:

> There is probably a better way, but one way is to create an ITK image then
> convert it to a VTK image:
>
> https://itk.org/ITKExamples/src/Bridge/VtkGlue/
> ConvertAnitkImageTovtkImageData/Documentation.html
>
> It is easy to create an ITK image, allocate the buffer then copy your data
> into the buffer.  Of course this requires you to have ITK installed.
> ________________________________________
> From: vtkusers <vtkusers-bounces at vtk.org> on behalf of VTKJunky <
> hadas.judah at gmail.com>
> Sent: Monday, 1 January 2018 9:24 p.m.
> To: vtkusers at vtk.org
> Subject: [vtkusers] Setting vtkImageData from regular float array
>
> I have float array which represents a 2-D image. I'd like to set it into
> vtkImageData, but can't work out how to do this. The problem is, all the
> examples use a vtkReader to read in the data, I already have the data.
>
>
> Any help would be greatly appreciated,
> Thanks!
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From david.gobbi at gmail.com  Mon Jan  1 11:25:06 2018
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 1 Jan 2018 09:25:06 -0700
Subject: [vtkusers] Setting vtkImageData from regular float array
In-Reply-To: <CAF2skS7z4-yNaDiyCoHm8N967qf7rWxd4aHmM_S+ZwOEEMj8qw@mail.gmail.com>
References: <1514795055423-0.post@n5.nabble.com>
 <1514798416910.77466@auckland.ac.nz>
 <CAF2skS7z4-yNaDiyCoHm8N967qf7rWxd4aHmM_S+ZwOEEMj8qw@mail.gmail.com>
Message-ID: <CANwS1=G=WfkUpO7nANhrbXDmb4tKDkuPGGdzX+R7sgNb0YUMRg@mail.gmail.com>

The most direct way of creating an image from an array is vtkImageImport:

https://lorensen.github.io/VTKExamples/site/Cxx/Images/ImageImport/
https://www.vtk.org/doc/nightly/html/classvtkImageImport.html

The vtkImageImport class provides two methods for using your array as
vtkImageData:

CopyImportVoidPointer(ptr) -> copy the array into the vtkImageData
SetImportVoidPointer(ptr) -> use your array directly (do not copy)

 - David


On Mon, Jan 1, 2018 at 8:32 AM, Aron Helser <aron.helser at kitware.com> wrote:

> HI!
> Check out this example:
> https://lorensen.github.io/VTKExamples/site/Cxx/
> ImageData/ImageIteratorDemo/
>
> it shows how to iterate through image data and modify it's value. You can
> assign values from your float array.
> HTH,
> Aron
>
> On Mon, Jan 1, 2018 at 4:20 AM, Gib Bogle <g.bogle at auckland.ac.nz> wrote:
>
>> There is probably a better way, but one way is to create an ITK image
>> then convert it to a VTK image:
>>
>> https://itk.org/ITKExamples/src/Bridge/VtkGlue/ConvertAnitkI
>> mageTovtkImageData/Documentation.html
>>
>> It is easy to create an ITK image, allocate the buffer then copy your
>> data into the buffer.  Of course this requires you to have ITK installed.
>> ________________________________________
>> From: vtkusers <vtkusers-bounces at vtk.org> on behalf of VTKJunky <
>> hadas.judah at gmail.com>
>> Sent: Monday, 1 January 2018 9:24 p.m.
>> To: vtkusers at vtk.org
>> Subject: [vtkusers] Setting vtkImageData from regular float array
>>
>> I have float array which represents a 2-D image. I'd like to set it into
>> vtkImageData, but can't work out how to do this. The problem is, all the
>> examples use a vtkReader to read in the data, I already have the data.
>>
>>
>> Any help would be greatly appreciated,
>> Thanks!
>>
>
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From thangam at mie.utoronto.ca  Mon Jan  1 15:25:42 2018
From: thangam at mie.utoronto.ca (Thangam Natarajan)
Date: Mon, 1 Jan 2018 15:25:42 -0500
Subject: [vtkusers] animate actors by iterating through a list of points
 with vtk timer callback function - causing huge slow down during rendering
Message-ID: <06A6618F-AA45-4055-AA7A-077C11795FC9@mie.utoronto.ca>

Hi all,

I have a file (pandas + hdf --> final.h5) that contains positions of "seed points" over time. It is of the format (tuple with x,y,z positions):

              t = 0\                 t =  1\                    t = 2\
0   (33.8 18.0 36.6)        0   (35.7 17.9 37.1)        0   (33.3 17.9 39.4)
1   (32.3 18.0 38.5)        1   (33.8 18.0 36.6)        1   (35.7 17.9 37.1)
2   (34.8 17.9 40.1)        2   (32.3 18.0 38.5)        2   (33.8 18.0 36.6)
3   (32.2 18.0 38.8)        3   (34.8 17.9 40.1)        3   (32.3 18.0 38.5)
4   (35.3 18.0 39.9)        4   (32.2 18.0 38.8)        4   (34.8 17.9 40.1)
5   (34.4 17.9 37.0)        5   (35.3 18.0 39.9)        5   (32.2 18.0 38.8)
I am trying to animate the path these 6 "seed points" inside a 3d pipe model by iterating them over time(t). I used the sphere animation example and wrote the following code:

import vtk
import os #needed for directory listing & sorting
import numpy as np
import pandas as pd

seeds = 6
timeS = 3

class vtkTimerCallback():
    def __init__(self):
        self.i = 0

    def execute(self, obj, event):
        for i in range(len(timeS)-1):
            for sd in range(len(seeds)):                  
              self.sphereActor[sd].SetPosition(finalMatrixh5[i][sd])            
              iren = obj
              iren.GetRenderWindow().Render()


finalMatrixh5 = pd.read_hdf('final.h5', 'endFrame', mode='r')   

def main():
    # Create a sphere
    sphere = vtk.vtkSphereSource()
    sphere.SetRadius(0.25)
    sphere.SetThetaResolution(4)
    sphere.SetPhiResolution(4) 

    sphereMapper = vtk.vtkPolyDataMapper()
    sphereMapper.SetInputConnection(sphere.GetOutputPort())

    actorlist = list()
    ren1 = vtk.vtkRenderer()

    sphereActor = [vtk.vtkActor() for i in range(len(seeds))]
    for obj in sphereActor:
        actorlist.append(obj)

    for sd in range(len(seeds)):
        sphereActor[sd].SetMapper(sphereMapper)
        ren1.AddActor(sphereActor[sd])     

    ren1.SetBackground(0.1, 0.2, 0.4)
    renWin = vtk.vtkRenderWindow()
    renWin.AddRenderer(ren1)
    renWin.SetSize(1600, 1600)
    iren = vtk.vtkRenderWindowInteractor() 
    iren.SetRenderWindow(renWin)
    style = vtk.vtkInteractorStyleTrackballCamera() 
    iren.SetInteractorStyle(style)

    renWin.Render() #
# Sign up to receive TimerEvent
    iren.Initialize() #initialize the rendering process   
    cb = vtkTimerCallback()
    cb.sphereActor = sphereActor
    iren.AddObserver('TimerEvent', cb.execute)
    iren.CreateRepeatingTimer(200)   


    iren.Start()



if __name__ == '__main__':
    main()
This does the job in creating spheres for the number of "seed points" and moves the spheres in the correct manner. However, the movement of these spheres are so slow and the window freezes such that no interaction is possible or super slow (zoom in, rotation etc.). Instead of 6 seed points even if I try to iterate a single seed through the points, it is so memory hogging and terribly slow. I am not sure where I am going wrong as this should be a straight forward animation with vtk where a few spheres move through their respective positions over time. Something wrong with the way I am adding actors or iterating? Any pointers? I am happy to try any other method to do this as well (perhaps, with Qt?)

Thanks a lot.

regards
Thangam.
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From elainejiang8 at gmail.com  Mon Jan  1 21:44:19 2018
From: elainejiang8 at gmail.com (Elaine Jiang)
Date: Tue, 2 Jan 2018 10:44:19 +0800
Subject: [vtkusers] Rectilinear grid to structured grid
In-Reply-To: <CADZJ4hPEXyS=+fmPSEJBOgpGGGZ=Ecw=u8x93qykbWZNJ+C7Qg@mail.gmail.com>
References: <1513643772242-0.post@n5.nabble.com>
 <CADZJ4hPEXyS=+fmPSEJBOgpGGGZ=Ecw=u8x93qykbWZNJ+C7Qg@mail.gmail.com>
Message-ID: <CALMiJKvaS2vp3x_3wkjJ1ehCp7q0ytP9R2-PzmQR-4LE78AuYg@mail.gmail.com>

Hi,

The vtkMultiBlock3DPlotReader from the example above does not seem to be
compatible with rectilinear grid data sets. Is there a similar reader for
rectilinear grids?

Thanks,
Elaine

On Tue, Dec 19, 2017 at 9:00 AM, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> Look at this:
> https://lorensen.github.io/VTKExamples/site/Cxx/VolumeRendering/
> PseudoVolumeRendering/
>
>
>
> On Mon, Dec 18, 2017 at 7:36 PM, elainejiang8 <elainejiang8 at gmail.com>
> wrote:
> > Hi all,
> >
> > I am trying to volume render a data set, but the data set given was in
> > rectilinear grid form. Is there a way to convert rectilinear grids to
> > structured grids so that I can use the volume rendering functions (color
> > transfer function etc.)? If not, is there another way I can volume
> render a
> > rectilinear data set?
> >
> > Thanks,
> > Elaine
> >
> >
> >
> > --
> > Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > https://vtk.org/mailman/listinfo/vtkusers
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com
>
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From jeff.baumes at kitware.com  Tue Jan  2 09:52:31 2018
From: jeff.baumes at kitware.com (Jeff Baumes)
Date: Tue, 02 Jan 2018 14:52:31 +0000
Subject: [vtkusers] How to retrieve individual value from a vtkTable in
 Java
In-Reply-To: <CAMFfBxzKQKKu4m3EvorYyYQFnF3opw47EOSyVgO_59sK+0VOEw@mail.gmail.com>
References: <CAMFfBxzKQKKu4m3EvorYyYQFnF3opw47EOSyVgO_59sK+0VOEw@mail.gmail.com>
Message-ID: <CANuLzQEPT=1+SSh5sVJG24m4zcsYahncdBj96RTaVqAhrBoxGw@mail.gmail.com>

vtkTable's GetRow method returns a vtkVariantArray (
https://www.vtk.org/doc/nightly/html/classvtkTable.html) which may be what
is causing trouble. This is necessary because though columns have a single
type, rows cut across columns so must be variant arrays. Perhaps try
GetColumn() instead, which you may have better luck using as a standard
array?

On Fri, Dec 22, 2017 at 9:02 AM Jean-Max Redonnet <jmax.red at gmail.com>
wrote:

> Hi,
>
> I did a K-Means clustering following the C++ example (
> https://lorensen.github.io/VTKExamples/site/Cxx/InfoVis/KMeansClustering/
> ).
>
>         vtkTable kmeansInputData = new vtkTable();
>         kmeansInputData.AddColumn(output.GetPointData().GetVectors()); //
> output object is a polydata with vectors attached resulting from previous
> calculation
>
>         vtkKMeansStatistics kMeansStatistics = new vtkKMeansStatistics();
>         kMeansStatistics.SetInputData(kmeansInputData);
>         kMeansStatistics.SetColumnStatus(kmeansInputData.GetColumnName(0),
> 1);
>         kMeansStatistics.SetColumnStatus(kmeansInputData.GetColumnName(1),
> 1);
>         kMeansStatistics.SetColumnStatus(kmeansInputData.GetColumnName(2),
> 1);
>         // kMeansStatistics.SetColumnStatus( "Testing", 1 );
>         kMeansStatistics.RequestSelectedColumns();
>         kMeansStatistics.SetAssessOption(true);
>         kMeansStatistics.SetDefaultNumberOfClusters(3);
>         kMeansStatistics.Update();
>
>         kMeansStatistics.GetOutput().Dump(32, -1); // dump shows the
> clustering is OK
>
>         vtkIntArray clusterArray = new vtkIntArray();
>         clusterArray.SetNumberOfComponents(1);
>         clusterArray.SetName("ClusterId");
>
>         for(int r = 0; r < kMeansStatistics.GetOutput().GetNumberOfRows();
> r++){
>          // at this point the C++ instruction to retrieve information is
>          // vtkVariant v = kMeansStatistics->GetOutput()->GetValue(r,
> kMeansStatistics->GetOutput()->GetNumberOfColumns() - 1);
>          // ...
>         }
>
> AFAIK vtkVariant does not exists in Java. I tried to get row first using
>           vtkAbstractArray a = kMeansStatistics.GetOutput().GetRow(r);
> My debugger indicates array a is instance of vtkFloatArray, but java cast
> doesn't work, thus I can't retrieve the value
> I guess SafeDownCast is the good method to do that, but can't find it in
> java wrapper.
>
> So, I can't figure out the right way to retrieve individual value from a
> vtkTable in Java.
>
> Any help would be really appreciated
>
> jMax
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From majid.msadeghi at yahoo.com  Tue Jan  2 10:28:38 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Tue, 2 Jan 2018 15:28:38 +0000 (UTC)
Subject: [vtkusers] How to orient faces of a polydata?
References: <665160827.8051104.1514906918537.ref@mail.yahoo.com>
Message-ID: <665160827.8051104.1514906918537@mail.yahoo.com>

Dear All,
I am exrtuding a 2D polygon using vtkLinearExtrusionFilter, the resulting polydata has misoriented faces on the mesh, meaning that for a closed mesh, faces inside and outside direction is mixed up. (for example when I open the data with meshlab and look at the normals, some are pointing in and some outwards)

How is it possible to orient order of each triangle vertices in a mesh so that there is a consistancy betwwen all faces?
Thanks for the help.
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From vorpal at internode.on.net  Tue Jan  2 10:31:45 2018
From: vorpal at internode.on.net (John)
Date: Wed, 3 Jan 2018 02:01:45 +1030
Subject: [vtkusers] Many VTK build tests fail when run from
 Jenkins/Bamboo or VNC display,
 even when DISPLAY is set to good opengl-enabled display
In-Reply-To: <20180101145307.GB23312@megas.kitware.com>
References: <fbe913e7-fb3b-c281-937e-d3f64acb1a66@internode.on.net>
 <20171222155053.GB13083@megas.kitware.com>
 <a74e9456-c6f1-fe5a-5c89-7f29e1c0648b@internode.on.net>
 <20171227134646.GA13765@megas.kitware.com>
 <13811c29-73cd-f4b5-5e59-c527ad063946@internode.on.net>
 <20180101145307.GB23312@megas.kitware.com>
Message-ID: <fdb0cef4-2042-af75-dc90-454ceb727901@internode.on.net>


aah, thanks muchly for the info Ben.

I'll see if I can find a mesa with floating point texture support on
rpmforge or somewhere, or build it myself & use LD_blah as you suggested.

Also. it does make me feel a little better knowing the DPMS issues are
due to a very nvidia-specific optimisation :-)

Cheers & regards,
John


On 2018-01-02 1:23 AM, Ben Boeckel wrote:
> On Mon, Jan 01, 2018 at 13:58:17 +1030, John wrote:
>> MESA_GL_VERSION_OVERRIDE=3.2 made a huge difference to running the tests
>> on vnc.
>>
>> With the override set, I'm able to run tests on vnc with only 102
>> failures, and most of those failures are from the TestGPURayCast group.
>> So there's obviously something about that group which doesn't like the
>> VNC/Mesa, but almost everything else is good.
> 
> Your Mesa build probably lacks floating point texture support. Most
> distros disable it due to patent licensing issues. Building it yourself
> (assuming a license) would suffice. I'd recommend *not* overwriting the
> system Mesa, but using LD_LIBRARY_PATH instead.
> 
>> I do find this situation incredibly frustrating and utterly depressing
>> though. Once again, I wonder why I ever began to use Linux. What sort of
>> utter garbage is this, when having a monitor turn off due to DPMS
>> suddenly breaks applications?!?!
> 
> This is nvidia behavior, not Linux/Mesa/etc. behavior (I have no such
> issues with the nouveau driver). Their driver "optimize" on-screen draws
> that aren't actually being displayed by just not doing them. You can see
> this if you overlap a window partially on top of a test window and see a
> black rectangle in that area. There may be some obscure setting in their
> settings app to disable this. If so, I'd like to know about it as well
> ;) (I haven't been in there in ages, so it may be new).
> 
> --Ben
> 


From ken.martin at kitware.com  Tue Jan  2 11:39:32 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Tue, 2 Jan 2018 11:39:32 -0500
Subject: [vtkusers] [vtk-developers] ANN: VTK Book Figures completed
In-Reply-To: <CADZJ4hP6GbOD5DupD7UznrYhZBNiRwuSsuFV4PFa4ht8BGMvYA@mail.gmail.com>
References: <CADZJ4hP6GbOD5DupD7UznrYhZBNiRwuSsuFV4PFa4ht8BGMvYA@mail.gmail.com>
Message-ID: <CANXz0SYrAeGWv9Ztipp1y38O5g=8i+iv41FShU3__ELH-HHQAA@mail.gmail.com>

Very Nice!

On Mon, Dec 18, 2017 at 5:40 PM, Bill Lorensen <bill.lorensen at gmail.com>
wrote:

> Folks,
>
> Andrew Maclean and I have successfully revived 112 examples from the
> VTK Book.  This covers all figures that were generated by VTK code. A
> few figures were generated with "mystery" codes and are not included.
>
> Most of the figures were created by Tcl scripts and  30 C++ programs.
> Andrew also converted many of the figure examples to Python.
>
> All of the figure examples are part of the VTKExamples repo and can be
> viewed here:
> https://lorensen.github.io/VTKExamples/site/VTKBookFigures/
>
> Each Book example has an image that is regression tested every night.
> Also, a link to the original code is provided. Most of the scripts
> were deleted from the repo many years ago.
>
> The VTKExamples https://lorensen.github.io/VTKExamples/site/ now contains:
>
> C++ examples: 948
> CSharp examples: 121
> Python examples: 161
> Java examples: 18
> Total examples: 1248
>
> This effort means that the "once  lost"  figure examples will live on.
>
> Old Guys Rule!
>
> Bill
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Search the list archives at: http://markmail.org/search/?q=vtk-developers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtk-developers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From bill.lorensen at gmail.com  Tue Jan  2 11:47:44 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Tue, 2 Jan 2018 08:47:44 -0800
Subject: [vtkusers] How to orient faces of a polydata?
In-Reply-To: <665160827.8051104.1514906918537@mail.yahoo.com>
References: <665160827.8051104.1514906918537.ref@mail.yahoo.com>
 <665160827.8051104.1514906918537@mail.yahoo.com>
Message-ID: <CADZJ4hPVJWg=hMxg5HM+WXufZ+9qWCpAWKa_XruktKvb2RExmQ@mail.gmail.com>

Can you post a small, compilable example that illustrates the problem?

On Tue, Jan 2, 2018 at 7:28 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> Dear All,
>
> I am exrtuding a 2D polygon using vtkLinearExtrusionFilter, the resulting
> polydata has misoriented faces on the mesh, meaning that for a closed mesh,
> faces inside and outside direction is mixed up. (for example when I open the
> data with meshlab and look at the normals, some are pointing in and some
> outwards)
>
> How is it possible to orient order of each triangle vertices in a mesh so
> that there is a consistancy betwwen all faces?
>
> Thanks for the help.
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From alican1812 at hotmail.com  Tue Jan  2 14:59:40 2018
From: alican1812 at hotmail.com (alican)
Date: Tue, 2 Jan 2018 12:59:40 -0700 (MST)
Subject: [vtkusers] How to delete all nodes in the vtkContourWidget
 without crashes?
In-Reply-To: <CALmcJSD2qsVqaKezvDE9C+AGdBnNYoP80FcDbNKJ3C1K+MJkaQ@mail.gmail.com>
References: <CALmcJSD2qsVqaKezvDE9C+AGdBnNYoP80FcDbNKJ3C1K+MJkaQ@mail.gmail.com>
Message-ID: <1514923180544-0.post@n5.nabble.com>

Probably a late and an unnecessary answer, but I think you should turn the
widget off first:

drawWidget->Off();

and only then  to try and clear nodes.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From polly_sukting at hotmail.com  Tue Jan  2 21:58:34 2018
From: polly_sukting at hotmail.com (Polly Lina)
Date: Tue, 2 Jan 2018 19:58:34 -0700 (MST)
Subject: [vtkusers] vtkThreshold: how to change the parameter to colour
 instead of remove the areas
In-Reply-To: <1514574494642-0.post@n5.nabble.com>
References: <SG2PR0401MB1582265E3F55C53CB3802C918F040@SG2PR0401MB1582.apcprd04.prod.outlook.com>
 <1514574494642-0.post@n5.nabble.com>
Message-ID: <1514948314079-0.post@n5.nabble.com>

Hello Doug,

Thank you so much for your response. 

-----Please refer to the images attached-----

Referring to your suggestion (3), I understand this is the fastest method as
you mentioned. 

I rendered the mean curvature by applying the lut colour. But the areas
shown are not as clean as how I wanted as in extracted by ThresholdByLower.
The areas in Green colour are extracted clearly from vtkThreshold. Actually,
I want to utilize the threshold for this research. 
<http://vtk.1045678.n5.nabble.com/file/t341727/test.jpg> 

My work is to visualize the "hole areas" then calculate the centroids of
them.


I am thinking if there is anyway to change the function of vtkThreshold from
either (a) or (b)

a) NOT to remove the areas but to PAINT the areas with a different colour 

OR 

b) DELETE the areas which meet the criterions but KEEP the areas which DOES
NOT meet the criterions 

It is because the areas that do not meet the criterions are meaningful for
my research.



And also I followed your suggestion (1), I created two mappers and two
actors, (ThresholdByLower=0.085 and ThresholdByUpper=0.085). 

However, the areas extracted by ThresholdByLower are exhibited correctly
(Red colour). But the areas that exhibited by ThresholdByUpper 

(This is the area that I need) are not shown preferably (Blue colour).
Adjacent areas disappeared. So I wonder how this should be connected.

<http://vtk.1045678.n5.nabble.com/file/t341727/above_below.jpg> 
"ThresholdByLower-Criterion is cells whose scalars are less or equal to
lower threshold.

ThresholdByUpper-Criterion is cells whose scalars are greater or equal to
upper threshold."

Thank you again! Happy New Year!

Best wishes,
Polly



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From robert.aungst at gmail.com  Tue Jan  2 22:30:45 2018
From: robert.aungst at gmail.com (Robby Aungst)
Date: Tue, 2 Jan 2018 21:30:45 -0600
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <1514585486023-0.post@n5.nabble.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
Message-ID: <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>

Thanks. I tried a similar approach but I have a number of filters lined up
so I can't cast things back
 to polydata at the end without breaking everything. I basically need to be
able to do the same thing (manually add the arrays back in), but without
having to create new polydata. I guess I need a filter that adds array data
to the poly data? Does something like that exist? Is there any other way
around this?



On Fri, Dec 29, 2017 at 4:11 PM, Charles Kind <charles.kind at bristol.ac.uk>
wrote:

> Dear Robby,
>
> Below is a function where I warp points back by half a vector in order that
> the vector glyph arrow is drawn later on with the center of the vector in
> plane. You will note that I create the warp vector field, apply it to the
> warp, copy these points to a polydata then extract all relevant arrays and
> copy the whole lot back. This may not be the correct way of doing things, I
> am just hacking at VTK, but it works. If you designated arrays as vector or
> scalar you will need to do that again afterwards.
>
>     # Generate warp vectors, these vectors warp the point data
>     # Warp centers vectors on plane, but warps base geometry
>     def CenterVectors(self):
>         numPoints = self.thinPD.GetNumberOfPoints()
>         mtrans = vtk.vtkFloatArray()
>         mtrans.SetNumberOfTuples(numPoints)
>         mtrans.SetNumberOfComponents(3)
>         mtrans.SetNumberOfValues(3*numPoints)
>         mtrans.SetName("mtrans")
>         # Warp of -(1/2)v centers vectors if vector origin is z=0 plane
>         for x in range(numPoints):
>             mtrans.SetTuple3(x, \
>                 -self.thinPD.GetPointData().GetAbstractArray('m').\
>                              GetTuple(x)[0]/2, \
>                 -self.thinPD.GetPointData().GetAbstractArray('m').\
>                              GetTuple(x)[1]/2, \
>                 -self.thinPD.GetPointData().GetAbstractArray('m').\
>                              GetTuple(x)[2]/2)
>         wpd = vtk.vtkPolyData()
>         wpd.SetPoints(self.thinPD.GetPoints())
>         wpd.GetPointData().SetVectors(mtrans)
>         # Warp vector origins
>         warpVector = vtk.vtkWarpVector()
>         warpVector.SetInputData(wpd)
>         warpVector.Update()
>         # Cast warped points and original vectors into PolyData
>         warped = vtk.vtkPolyData()
>         warped.SetPoints(warpVector.GetOutput().GetPoints())
>         noarrays = self.thinPD.GetPointData().GetNumberOfArrays()
>         for x in range(noarrays):
>             warped.GetPointData().AddArray(self.thinPD.GetPointData()\
>                                            .GetAbstractArray(x))
>         self.thinPD = warped
>
> Luck,
>
> Charlie
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From majid.msadeghi at yahoo.com  Wed Jan  3 04:17:03 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Wed, 3 Jan 2018 09:17:03 +0000 (UTC)
Subject: [vtkusers] How to orient faces of a polydata?
In-Reply-To: <CADZJ4hPVJWg=hMxg5HM+WXufZ+9qWCpAWKa_XruktKvb2RExmQ@mail.gmail.com>
References: <665160827.8051104.1514906918537.ref@mail.yahoo.com>
 <665160827.8051104.1514906918537@mail.yahoo.com>
 <CADZJ4hPVJWg=hMxg5HM+WXufZ+9qWCpAWKa_XruktKvb2RExmQ@mail.gmail.com>
Message-ID: <1834792010.8614559.1514971023452@mail.yahoo.com>

This code should work to create the mesh. I have also attached the produced mesh in .stl and .off format for possible evaluation.
??? double tube_radious = 2.5;
?? ?double MaxToppt[3];
?? ?MaxToppt[2]=15;
?? ?double center1[3] = { 0, 0, 0 };

?? ?double CornerPt1[3];
?? ?double CornerPt2[3];
?? ?double CornerPt3[3];
?? ?double CornerPt4[3];
?? ?double CornerPt5[3];
?? ?double CornerPt6[3];

?? ?CornerPt2[0] = center1[0] + tube_radious + 1;
?? ?CornerPt2[1] = center1[1] - 10;
?? ?CornerPt1[0] = center1[0] - tube_radious - 1; ;
?? ?CornerPt1[1] = center1[1] - 10;
?? ?CornerPt3[0] = center1[0] + tube_radious + 1;
?? ?CornerPt3[1] = center1[1];
?? ?CornerPt4[0] = center1[0] + tube_radious;
?? ?CornerPt4[1] = center1[1] + MaxToppt[2] + 10;
?? ?CornerPt5[0] = center1[0] - tube_radious - (MaxToppt[2] + 10) * 0.7;
?? ?CornerPt5[1] = center1[1] + (MaxToppt[2] + 10) * 0.7;
?? ?CornerPt6[0] = center1[0] - tube_radious - 1;
?? ?CornerPt6[1] = center1[1];
?? ?CornerPt1[2] = 0;
?? ?CornerPt2[2] = 0;
?? ?CornerPt3[2] = 0;
?? ?CornerPt4[2] = 0;
?? ?CornerPt5[2] = 0;
?? ?CornerPt6[2] = 0;

?? ?vtkSmartPointer<vtkPoints> pointsImp_first = vtkSmartPointer<vtkPoints>::New();
?? ?pointsImp_first->InsertNextPoint(CornerPt1);
?? ?pointsImp_first->InsertNextPoint(CornerPt2);
?? ?pointsImp_first->InsertNextPoint(CornerPt3);
?? ?pointsImp_first->InsertNextPoint(CornerPt4);
?? ?pointsImp_first->InsertNextPoint(CornerPt5);
?? ?pointsImp_first->InsertNextPoint(CornerPt6);

?? ?vtkSmartPointer<vtkCellArray> polygonsImp_first = vtkSmartPointer<vtkCellArray>::New();// Add the polygon to a list of polygons
?? ?polygonsImp_first->Allocate(4, 6);
?? ?polygonsImp_first->InsertNextCell(3);
?? ?polygonsImp_first->InsertCellPoint(0);
?? ?polygonsImp_first->InsertCellPoint(1);
?? ?polygonsImp_first->InsertCellPoint(2);
?? ?polygonsImp_first->InsertNextCell(3);
?? ?polygonsImp_first->InsertCellPoint(0);
?? ?polygonsImp_first->InsertCellPoint(2);
?? ?polygonsImp_first->InsertCellPoint(5);
?? ?polygonsImp_first->InsertNextCell(3);
?? ?polygonsImp_first->InsertCellPoint(2);
?? ?polygonsImp_first->InsertCellPoint(3);
?? ?polygonsImp_first->InsertCellPoint(5);
?? ?polygonsImp_first->InsertNextCell(3);
?? ?polygonsImp_first->InsertCellPoint(3);
?? ?polygonsImp_first->InsertCellPoint(4);
?? ?polygonsImp_first->InsertCellPoint(5);

?? ?vtkSmartPointer<vtkPolyData> polygonPolyImp_first = vtkSmartPointer<vtkPolyData>::New();
?? ?polygonPolyImp_first->Initialize();
?? ?polygonPolyImp_first->SetPoints(pointsImp_first);
?? ?polygonPolyImp_first->SetPolys(polygonsImp_first);

?? ?//****************************************** Transform 
?? ?vtkSmartPointer<vtkTransform> RotatetwicetranslateTransform = vtkSmartPointer<vtkTransform>::New();
?? ?RotatetwicetranslateTransform->RotateWXYZ(90, 0, 1, 0);//rotate around y(0,1,0) axis
?? ?RotatetwicetranslateTransform->RotateWXYZ(90, 0, 0, 1);
?? ?RotatetwicetranslateTransform->Translate(0, 0, 8);
?? ?vtkSmartPointer<vtkTransformPolyDataFilter> RotatetwiceFilter = vtkSmartPointer<vtkTransformPolyDataFilter>::New();
?? ?RotatetwiceFilter->SetInputData(polygonPolyImp_first);
?? ?RotatetwiceFilter->SetTransform(RotatetwicetranslateTransform);
?? ?RotatetwiceFilter->Update();

?? ?vtkSmartPointer<vtkPolyData> allpolygonestransformed = vtkSmartPointer<vtkPolyData>::New();
?? ?allpolygonestransformed = RotatetwiceFilter->GetOutput();

?? ?// Show transformed polygon
?? ?//vtkSmartPointer<vtkPolyDataMapper> trandformedmapper = vtkSmartPointer<vtkPolyDataMapper>::New();
?? ?//trandformedmapper->SetInputData(allpolygonestransformed);
?? ?//vtkSmartPointer<vtkActor> transformedactor = vtkSmartPointer<vtkActor>::New();
?? ?//transformedactor->SetMapper(trandformedmapper);
?? ?//transformedactor->GetProperty()->SetColor(1, 0, 0);
?? ?//
?? ?//renderer->AddActor(transformedactor);
?? ?//this->ui.qvtkWidget->GetRenderWindow()->Render();

?? ?//**********************************************************
?? ?// Extrude the contour along the normal to the plane which the contour lies on.
?? ?vtkSmartPointer<vtkLinearExtrusionFilter> extrudeFilter4 = vtkSmartPointer<vtkLinearExtrusionFilter>::New();
?? ?extrudeFilter4->SetInputData(allpolygonestransformed);
?? ?extrudeFilter4->SetScaleFactor(-18);
?? ?extrudeFilter4->SetExtrusionTypeToNormalExtrusion();
?? ?extrudeFilter4->SetVector(1, 0, 0);
?? ?extrudeFilter4->Update();

?? ?vtkSmartPointer<vtkTriangleFilter> ExtrudedTri = vtkSmartPointer<vtkTriangleFilter>::New();
?? ?ExtrudedTri->SetInputConnection(extrudeFilter4->GetOutputPort());
?? ?ExtrudedTri->Update();

?? ?vtkSmartPointer<vtkPolyData> extruded = vtkSmartPointer<vtkPolyData>::New();
?? ?extruded = ExtrudedTri->GetOutput();

?? ?vtkSmartPointer<vtkCleanPolyData> Clean = vtkSmartPointer<vtkCleanPolyData>::New();
?? ?Clean->SetInputData(extruded);
?? ?Clean->SetTolerance(0.0);
?? ?Clean->PointMergingOn();
?? ?Clean->ConvertLinesToPointsOn();
?? ?Clean->ConvertPolysToLinesOn();
?? ?Clean->ConvertStripsToPolysOn();
?? ?Clean->Update();
?? ?
?? ?vtkSmartPointer<vtkPolyData> alltriclean = vtkSmartPointer<vtkPolyData>::New();
?? ?alltriclean = Clean->GetOutput();
?? ?
?? ?vtkSmartPointer<vtkSTLWriter> stlWriter0 = vtkSmartPointer<vtkSTLWriter>::New();
?? ?stlWriter0->SetFileName("C:\\alltricleansubdividedsASCII.stl");
?? ?stlWriter0->SetFileTypeToASCII();
?? ?stlWriter0->SetInputData(alltriclean);
?? ?stlWriter0->Update();
?? ?stlWriter0->Write();



Thank you so much.

 

    On Tuesday, January 2, 2018, 6:47:45 PM GMT+2, Bill Lorensen <bill.lorensen at gmail.com> wrote:  
 
 Can you post a small, compilable example that illustrates the problem?

On Tue, Jan 2, 2018 at 7:28 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> Dear All,
>
> I am exrtuding a 2D polygon using vtkLinearExtrusionFilter, the resulting
> polydata has misoriented faces on the mesh, meaning that for a closed mesh,
> faces inside and outside direction is mixed up. (for example when I open the
> data with meshlab and look at the normals, some are pointing in and some
> outwards)
>
> How is it possible to orient order of each triangle vertices in a mesh so
> that there is a consistancy betwwen all faces?
>
> Thanks for the help.
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com
  
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From alican1812 at hotmail.com  Wed Jan  3 08:01:09 2018
From: alican1812 at hotmail.com (alican)
Date: Wed, 3 Jan 2018 06:01:09 -0700 (MST)
Subject: [vtkusers] Need to pick a cell and it's neighbors
In-Reply-To: <1344372523205-5715152.post@n5.nabble.com>
References: <1343922344085-5715057.post@n5.nabble.com>
 <CABDpjT=S9UzUvfzckOcp_v8JY8aFTje+FzH81S=zbq-fs9fQVQ@mail.gmail.com>
 <1343924842690-5715059.post@n5.nabble.com>
 <CABDpjTnt47XVBkExsyAxym0BD-v0nMdDXNktBxOs4PmjzhG9Tg@mail.gmail.com>
 <1343931837123-5715061.post@n5.nabble.com>
 <1344330494952-5715136.post@n5.nabble.com>
 <1344372523205-5715152.post@n5.nabble.com>
Message-ID: <1514984469888-0.post@n5.nabble.com>

For future users:
https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellEdgeNeighbors
<https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellEdgeNeighbors>  



--
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From charles.kind at bristol.ac.uk  Wed Jan  3 08:49:04 2018
From: charles.kind at bristol.ac.uk (Charles Kind)
Date: Wed, 3 Jan 2018 06:49:04 -0700 (MST)
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
 <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
Message-ID: <1514987344289-0.post@n5.nabble.com>

As long as the arrays match the points you can move them between VTK data
structures. I move arrays freely between polydata and structured grid in
particular due to the nature of my research. I am not sure of your exact set
up, maybe some pseudo code would help me understand.
In my current VTK app I reconstruct with nearly every change/filter apart
from subsampling which requires all arrays attached, some arrays I leave in
their original data formats and only copy them over before creating actors
and rendering. Again this may not be the 'correct' way of doing things and
can be horribly memory intensive.

Charlie



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From pechnikov at mobigroup.ru  Wed Jan  3 12:20:01 2018
From: pechnikov at mobigroup.ru (Alexey Pechnikov)
Date: Thu, 4 Jan 2018 00:20:01 +0700
Subject: [vtkusers] Show picture on polygonal (seismic) line for some depth
 range
Message-ID: <CANMYFJk_96qhou08WkGuLGX9-X9YXO9BN+Cmm8ViuHLwtABNdA@mail.gmail.com>

I have seismic line coordinates (x1,y1), (x2,y2), ..., (xn,yn) and a single
picture for known depth range (z1,z2) for the full seismic line. How to
place the picture on it? Should I make a set of planes for the seismic line
segments and place slices of the picture on these planes? Maybe is exists a
better way? Where could I look for code examples (python preferred but I
can convert c++ samples too)?

-- 
Best regards, Alexey Pechnikov.
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From bill.lorensen at gmail.com  Wed Jan  3 14:02:17 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 3 Jan 2018 11:02:17 -0800
Subject: [vtkusers] Need to pick a cell and it's neighbors
In-Reply-To: <1514984469888-0.post@n5.nabble.com>
References: <1343922344085-5715057.post@n5.nabble.com>
 <CABDpjT=S9UzUvfzckOcp_v8JY8aFTje+FzH81S=zbq-fs9fQVQ@mail.gmail.com>
 <1343924842690-5715059.post@n5.nabble.com>
 <CABDpjTnt47XVBkExsyAxym0BD-v0nMdDXNktBxOs4PmjzhG9Tg@mail.gmail.com>
 <1343931837123-5715061.post@n5.nabble.com>
 <1344330494952-5715136.post@n5.nabble.com>
 <1344372523205-5715152.post@n5.nabble.com>
 <1514984469888-0.post@n5.nabble.com>
Message-ID: <CADZJ4hNc6ye5y5TtG-Lu8L2QsPFok+WVr84mNqQWipLALQOHhw@mail.gmail.com>

Please use the new examples at:
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/CellEdgeNeighbors/

We are deprecating the old wiki example site.



On Wed, Jan 3, 2018 at 5:01 AM, alican <alican1812 at hotmail.com> wrote:
> For future users:
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellEdgeNeighbors
> <https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/CellEdgeNeighbors>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers



-- 
Unpaid intern in BillsBasement at noware dot com

From luciano.geronimo.fnord at gmail.com  Wed Jan  3 18:22:52 2018
From: luciano.geronimo.fnord at gmail.com (Luciano Geronimo)
Date: Wed, 3 Jan 2018 21:22:52 -0200
Subject: [vtkusers] VTK build for android fails
Message-ID: <CAPyVFsuthR_+kKY2tmcswDbpDGF_TJp2L=86okgvJXscHHOQ3g@mail.gmail.com>

Good day,

Following the instructions at
https://blog.kitware.com/building-vtk-for-mobile-architectures/ I pulled
VTK from git, installed the Android Studio 3.0.1 and NDK16b. I set
ANDROID_ARCH_ABI = armeabi
ANDROID_EXECUTABLE = /home/luciano/Android/Sdk/tools/android
ANDROID_NATIVE_API_LEVEL = 21
ANDROID_NDK = /home/luciano/android-ndk-r16b
VTK_ANDROID_BUILD = true

When I run sudo make in the build directory the build fails with :
[ 12%] Building C object
ThirdParty/freetype/vtkfreetype/CMakeFiles/vtkfreetype.dir/src/base/ftdebug.c.o
[ 12%] Building C object
ThirdParty/freetype/vtkfreetype/CMakeFiles/vtkfreetype.dir/builds/unix/ftsystem.c.o
[ 13%] Building C object
ThirdParty/tiff/vtktiff/libtiff/CMakeFiles/vtktiff.dir/__/port/dummy.c.o
[ 13%] Linking C static library ../../../../lib/libvtktiff-9.0.a
[ 13%] Linking C static library ../../../lib/libvtkfreetype-9.0.a
[ 13%] Built target vtktiff
[ 13%] Built target vtkfreetype
Makefile:129: recipe for target 'all' failed
make[3]: *** [all] Error 2
CMakeFiles/vtk-android.dir/build.make:111: recipe for target
'CMakeExternals/Prefix/vtk-android-21-armeabi/src/vtk-android-stamp/vtk-android-build'
failed
make[2]: ***
[CMakeExternals/Prefix/vtk-android-21-armeabi/src/vtk-android-stamp/vtk-android-build]
Error 2
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/vtk-android.dir/all'
failed
make[1]: *** [CMakeFiles/vtk-android.dir/all] Error 2
Makefile:94: recipe for target 'all' failed
make: *** [all] Error 2

My android SDK is in /home/luciano/Android/sdk and my NDK is in
/home/luciano/android-ndk-r16b
My system is a x64 ubuntu 16 building using gcc. VTK build for desktop
works fine.

What am I doing wrong? How can I build and use VTK in android?
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From hyleihy at 126.com  Wed Jan  3 19:55:26 2018
From: hyleihy at 126.com (l)
Date: Thu, 4 Jan 2018 08:55:26 +0800 (CST)
Subject: [vtkusers] help, I have two technical questions to help.
Message-ID: <255409b4.f7a.160beaa6587.Coremail.hyleihy@126.com>

Dear expert?
     I want to build implicit surface model of trigonometric function, not vtkQuadric . 
I use the class of vtkImplicitFunction, but I don't know how to express this equation.
    So, I try to rewrite VTK class vtkSphere. I just replace the class name to mySphere, the rest is the same.
But, in the MS VS2010, compile error: 
    error LNK2001:  "__declspec(dllimport) public: static class mySphere * __cdecl mySphere::New(void)" 


    I am very confused, I only modify the name. Is there any missing library?
    
    Please help me about the two questions:
    1) How to express the implicit surface like trigonometric function.
    2)  Modify vtkImplicitFunction class what matters needing attention.


    Thank you very much!
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From tamim.boubou at gmail.com  Thu Jan  4 02:47:23 2018
From: tamim.boubou at gmail.com (Tamim)
Date: Thu, 4 Jan 2018 00:47:23 -0700 (MST)
Subject: [vtkusers] multiple boxWidgets
Message-ID: <1515052043043-0.post@n5.nabble.com>

Hello everybody, 

I'm relatively new to classes and VTK in general and I need to insert
multiple boxWidgets every time a specific key is pressed.....I found and
example about keyPressEvents :
KeyPressEvent
<https://www.vtk.org/Wiki/VTK/Examples/Cxx/Interaction/KeypressEvents>  

my question is what am I supposed to change in the code in order to create a
boxWidget instead of writing something on the console window.


any simple explanation would be great

Thanks



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From vtk12af6bc42 at kant.sophonet.de  Thu Jan  4 08:35:00 2018
From: vtk12af6bc42 at kant.sophonet.de (Sophonet)
Date: Thu, 04 Jan 2018 14:35:00 +0100
Subject: [vtkusers] Offscreen rendering problems on headless Ubuntu
Message-ID: <f3902c80f7742f85dee61d6ef9b548a9@kant.sophonet.de>

Hi list, happy new year!

I have compiled VTK 8.1.0 on a headless Ubuntu 16.04 with OSMesa support 
(flags: -D VTK_RENDERING_BACKEND="OpenGL2" -D 
VTK_OPENGL_HAS_OSMESA=True).

Using python (for example), I see an error about an unsupported OpenGL 
version (see below). However, Ubuntu comes with mesa 17.2.4 (which 
should be recent enough). Moreover, glxinfo shows "OpenGL core profile 
version string: 3.3 (Core Profile) Mesa 17.2.4.

Any clues what went wrong?

Thanks,

       Sophonet


In [1]: import vtk
In [2]: rw = vtk.vtkRenderWindow()
In [3]: rw.SetOffScreenRendering(1)
In [4]: rw.Render()
ERROR: In 
/home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, 
line 797
vtkOSOpenGLRenderWindow (0x1991250): GL version 2.1 with the gpu_shader4 
extension is not supported by your graphics driver but is required for 
the new OpenGL rendering backend. Please update your OpenGL driver. If 
you are using Mesa please make sure you have version 10.6.5 or later and 
make sure your driver in Mesa supports OpenGL 3.2.


From robert.aungst at gmail.com  Thu Jan  4 13:07:31 2018
From: robert.aungst at gmail.com (Robby Aungst)
Date: Thu, 4 Jan 2018 12:07:31 -0600
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <1514987344289-0.post@n5.nabble.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
 <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
 <1514987344289-0.post@n5.nabble.com>
Message-ID: <CABYSrO_oDE=Mkrygbg7Ss5Ffqq9BXR4B13wCUCm2kZ7_jEQ43A@mail.gmail.com>

Thanks. I need to do everything in terms of pipeline connections. Casting
back to polydata works for if you're doing everything as a stand-alone
dataset, but as far as I'm aware, you can't do that in terms of a pipeline.
My pipeline is:

vtkPolyData->vtkExtractSelectedIds->vtkWarpVector->vtkDistan
ceToCamera->vtkGlyph3D

I add the points and arrays to the polydata at the beginning. They just
aren't around anymore by the time I get to vtkGlyph3D and it seems like
vtkWarpVector is the culprit. Everything is connected with
SetInputConnection and it seems that polydata doesn't have an output port
so it has to be at the beginning and can't get created in the middle. I
can't use your workaround to get the arrays back in there. :/

On Wed, Jan 3, 2018 at 7:49 AM, Charles Kind <charles.kind at bristol.ac.uk>
wrote:

> As long as the arrays match the points you can move them between VTK data
> structures. I move arrays freely between polydata and structured grid in
> particular due to the nature of my research. I am not sure of your exact
> set
> up, maybe some pseudo code would help me understand.
> In my current VTK app I reconstruct with nearly every change/filter apart
> from subsampling which requires all arrays attached, some arrays I leave in
> their original data formats and only copy them over before creating actors
> and rendering. Again this may not be the 'correct' way of doing things and
> can be horribly memory intensive.
>
> Charlie
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From powerhak at naver.com  Fri Jan  5 00:07:42 2018
From: powerhak at naver.com (Aleph)
Date: Thu, 4 Jan 2018 22:07:42 -0700 (MST)
Subject: [vtkusers] Hole on Mesh(stl)
Message-ID: <1515128862655-0.post@n5.nabble.com>

Hello everybody,
The reason why i am posting now is because of a problem of making hole.

i thought that, for making hole i would use vtkCylinder(implicit function)
and vtkClipPolyData.
In addition, i wanted to control the position of hole with boxWidget.

I had finished to make boxWidget and it worked well(rotate, translate)
But i couldn't find out how to locate the implicit function(cylinder) to
boxWidget.

i will show you my codes.

-----------------------------------------------------------------------
void VTK_guide::LoadBoxWidgetWithCylinder()
{
   vtkSmartPointer<vtkTransform> t =
       vtkSmartPointer<vtkTransform>::New();

   vtkSmartPointer<vtkCylinder> cyl =
       vtkSmartPointer<vtkCylinder>::New();
   cyl->SetRadius(1);
   cyl->SetTransform(t);
   
   sample->SetSampleDimensions(10, 10, 10);
   sample->SetImplicitFunction(cyl);
   double value = 2.0;
   double xmin = -value, xmax = value, ymin = -value, ymax = value, zmin =
-value, zmax = value;
   sample->SetModelBounds(xmin, xmax, ymin, ymax, zmin, zmax);
   
   vtkSmartPointer<vtkContourFilter> contours =
       vtkSmartPointer<vtkContourFilter>::New();
   contours->SetInputConnection(sample->GetOutputPort());
   contours->GenerateValues(1, 1, 1);

   vtkSmartPointer<vtkPolyDataMapper> contourMapper =
       vtkSmartPointer<vtkPolyDataMapper>::New();
   contourMapper->SetInputConnection(contours->GetOutputPort());

   vtkSmartPointer<vtkActor> contourActor =
       vtkSmartPointer<vtkActor>::New();
   contourActor->SetMapper(contourMapper);

   boxWidget2->SetInputConnection(contours->GetOutputPort());
   boxWidget2->SetInteractor(mpVtkMainRendering->GetInteractor());
   boxWidget2->SetProp3D(contourActor);
   boxWidget2->SetPlaceFactor(1.25);
   boxWidget2->PlaceWidget();
   boxWidget2->SetHandleSize(0.0025);

   vtkSmartPointer<BoxWidgetCallback> callback =
       vtkSmartPointer<BoxWidgetCallback>::New();
   boxWidget2->AddObserver(vtkCommand::InteractionEvent, callback);
   boxWidget2->On();

   mpVtkMainRendering->GetRenderer()->AddActor(contourActor);
   mpVtkMainRendering->GetInteractor()->Start();
}

------------------------------------------------------------------------------and

void VTK_guide::HoleMaking()
{
   vtkSmartPointer<vtkTransform> trans =
       vtkSmartPointer<vtkTransform>::New();
   trans->Translate(boxWidget2->GetProp3D()->GetPosition());
   trans->Update();

   vtkImplicitFunction *cyl2;
   cyl2 = sample->GetImplicitFunction();
   cyl2->SetTransform(trans);
   cyl2->Modified();

   vtkSmartPointer<vtkClipPolyData> clipper =
       vtkSmartPointer<vtkClipPolyData>::New();
   clipper->SetInputData(mpMeshData->GetPolyDataOutput());
   //clipper->SetClipFunction(sample->GetImplicitFunction());
   clipper->SetClipFunction(cyl2);
   clipper->SetValue(0.0);
   clipper->Update();

   vtkSmartPointer<vtkPolyData> polydata =
       vtkSmartPointer<vtkPolyData>::New();
   polydata = clipper->GetOutput();

   vtkSmartPointer<vtkDataSetMapper> clipMapper =
       vtkSmartPointer<vtkDataSetMapper>::New();
   clipMapper->SetInputData(polydata);

   vtkSmartPointer<vtkActor> clipActor =
       vtkSmartPointer<vtkActor>::New();
   clipActor->SetMapper(clipMapper);
   clipActor->GetProperty()->SetInterpolationToPhong();

   mpVtkMainRendering->GetRenderer()->AddActor(clipActor);
}

Could you please tell me why it doesn't work?
Thank you



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From leonid_dulman at yahoo.co.uk  Fri Jan  5 02:29:25 2018
From: leonid_dulman at yahoo.co.uk (Leonid Dulman)
Date: Fri, 5 Jan 2018 07:29:25 +0000 (UTC)
Subject: [vtkusers] VTKAda version 8.1.0 release 05/01/2018
References: <1085809026.1259305.1515137365938.ref@mail.yahoo.com>
Message-ID: <1085809026.1259305.1515137365938@mail.yahoo.com>

I'm pleased to announce
VTKAda version 8.1.0? free edition? release 05/01/2018VTKAda is Ada-2012? port to VTK (Visualization Toolkit by Kitware, Inc) and Qt5 application and UI framework by NokiaVTK version 8.1.0, Qt version 5.10.0 open source and vtkc.dll,vtkc2.dll,qt5c.dll(libvtkc.so,libvtkc2.so,libqt5c.so) were built with Microsoft Visual Studio 2015? in Windows (WIN32)and gcc? in Linux? x86-64Package was tested with gnat gpl 2017 ada compiler in Windows 10? 64bit,Debian 9.2 x86-64
As a role ADA is used in embeded systems, but with VTKADA(+QTADA) you can build any desktop applications with?powerful 2D/3D rendering and imaging (games, animations, emulations) GUI, Database connection, server/client, Internet browsing and many others thinks.
VTKADA you can be used without QTADA subsystem?
Qt5Ada and VTKAda for Windows, Linux (Unix) is available fromhttps://drive.google.com/folderview?id=0B2QuZLoe-yiPbmNQRl83M1dTRVE&usp=sharing (google drive. It can be mounted as virtual drive or directory or viewed with Web Browser)??
Leonid Dulman (leonid.dulman at gmail.com)

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From rppatil3210 at gmail.com  Fri Jan  5 03:52:28 2018
From: rppatil3210 at gmail.com (rohit)
Date: Fri, 5 Jan 2018 01:52:28 -0700 (MST)
Subject: [vtkusers] Getting EXCEPTION_ACCESS_VIOLATION error in Windows
 server 2016
Message-ID: <1515142348288-0.post@n5.nabble.com>

Hello All, I am getting following error on Windows server 2016, but the same
build can be run on other systems without any error, Please help me
out. Thank You in advance

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000000000000,
pid=9196, tid=0x0000000000002048
#
# JRE version: Java(TM) SE Runtime Environment (8.0_131-b11) (build
1.8.0_131-b11)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.131-b11 mixed mode
windows-amd64 compressed oops)
# Problematic frame:
# C  0x0000000000000000
#
# Core dump written. Default location: C:\Program Files\New
Folder\hs_err_pid9196.mdmp
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

---------------  T H R E A D  ---------------

Current thread (0x00000000305f4000):  JavaThread "AWT-EventQueue-0"
[_thread_in_native, id=8264, stack(0x0000000044ac0000,0x0000000044bc0000)]

siginfo: ExceptionCode=0xc0000005, ExceptionInformation=0x0000000000000008
0x0000000000000000



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From charles.kind at bristol.ac.uk  Fri Jan  5 04:44:15 2018
From: charles.kind at bristol.ac.uk (Charles Kind)
Date: Fri, 5 Jan 2018 02:44:15 -0700 (MST)
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <CABYSrO_oDE=Mkrygbg7Ss5Ffqq9BXR4B13wCUCm2kZ7_jEQ43A@mail.gmail.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
 <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
 <1514987344289-0.post@n5.nabble.com>
 <CABYSrO_oDE=Mkrygbg7Ss5Ffqq9BXR4B13wCUCm2kZ7_jEQ43A@mail.gmail.com>
Message-ID: <1515145455753-0.post@n5.nabble.com>

Robby,

Could you print to console, or whatever, the datastructure before and after
WarpVectors and let me see them? ie In Python I just use
print(datastructure).

Charlie



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From vtk12af6bc42 at kant.sophonet.de  Fri Jan  5 09:42:39 2018
From: vtk12af6bc42 at kant.sophonet.de (Sophonet)
Date: Fri, 05 Jan 2018 15:42:39 +0100
Subject: [vtkusers] Offscreen rendering problems on headless Ubuntu
In-Reply-To: <f3902c80f7742f85dee61d6ef9b548a9@kant.sophonet.de>
References: <f3902c80f7742f85dee61d6ef9b548a9@kant.sophonet.de>
Message-ID: <a2388dec702bbaaee6747d2757845e1e@kant.sophonet.de>

One more update:

First of all some correction: glxinfo of course shows the X rendering 
capabilities, not the OSMesa ones, so glxinfo is not the tool of choice.

Then: It seems that Ubuntu's mesa (16.04 update) does not ship with 
llvmpipe drivers for OSMesa, so I have built OSMesa myself, without X, 
based on Utkarsh's hints at 
https://blog.kitware.com/messing-with-mesa-for-paraview-5-0vtk-7-0/.

However, it seems that no OpenGL extensions are available (see output 
below).

Any hint how mesa needs to be compiled / what runtime variables need to 
be set in order to support OpenGL extensions in OSMesa?

Thanks,

      Sophonet


Debug output:
In [1]: import vtk
In [2]: rw = vtk.vtkRenderWindow()
In [3]: rw.SetOffScreenRendering(1)
In [4]: rw.Render()
ERROR: In 
/home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx, 
line 797
vtkOSOpenGLRenderWindow (0x2ebb060): GL version 2.1 with the gpu_shader4 
extension is not supported by your graphics driver but is required for 
the new OpenGL rendering backend. Please update your OpenGL driver. If 
you are using Mesa please make sure you have version 10.6.5 or later and 
make sure your driver in Mesa supports OpenGL 3.2.

In [5]: print(rw.ReportCapabilities())
OpenGL vendor string:  VMware, Inc.
OpenGL renderer string:  llvmpipe (LLVM 5.0, 256 bits)
OpenGL version string:  3.3 (Core Profile) Mesa 17.3.1
OpenGL extensions:

---- (No OpenGL extensions are reported)


On 2018-01-04 14:35, Sophonet wrote:
> Hi list, happy new year!
> 
> I have compiled VTK 8.1.0 on a headless Ubuntu 16.04 with OSMesa
> support (flags: -D VTK_RENDERING_BACKEND="OpenGL2" -D
> VTK_OPENGL_HAS_OSMESA=True).
> 
> Using python (for example), I see an error about an unsupported OpenGL
> version (see below). However, Ubuntu comes with mesa 17.2.4 (which
> should be recent enough). Moreover, glxinfo shows "OpenGL core profile
> version string: 3.3 (Core Profile) Mesa 17.2.4.
> 
> Any clues what went wrong?
> 
> Thanks,
> 
>       Sophonet
> 
> 
> In [1]: import vtk
> In [2]: rw = vtk.vtkRenderWindow()
> In [3]: rw.SetOffScreenRendering(1)
> In [4]: rw.Render()
> ERROR: In
> /home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx,
> line 797
> vtkOSOpenGLRenderWindow (0x1991250): GL version 2.1 with the
> gpu_shader4 extension is not supported by your graphics driver but is
> required for the new OpenGL rendering backend. Please update your
> OpenGL driver. If you are using Mesa please make sure you have version
> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
> 
> _______________________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> 
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> 
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers

From vtk12af6bc42 at kant.sophonet.de  Fri Jan  5 10:19:17 2018
From: vtk12af6bc42 at kant.sophonet.de (Sophonet)
Date: Fri, 05 Jan 2018 16:19:17 +0100
Subject: [vtkusers] Offscreen rendering problems on headless Ubuntu
In-Reply-To: <a2388dec702bbaaee6747d2757845e1e@kant.sophonet.de>
References: <f3902c80f7742f85dee61d6ef9b548a9@kant.sophonet.de>
 <a2388dec702bbaaee6747d2757845e1e@kant.sophonet.de>
Message-ID: <1a2ec5064cbc7afa8bc109c40b63fc19@kant.sophonet.de>

For the files: This seemed to do the trick with the :

https://www.vtk.org/pipermail/vtk-developers/2017-November/035592.html

Even though print(rw.ReportCapabilities()) did not reveal any 
extensions, rendering now works... hope that this gets fixed some time.

Thanks,

      Sophonet


On 2018-01-05 15:42, Sophonet wrote:
> One more update:
> 
> First of all some correction: glxinfo of course shows the X rendering
> capabilities, not the OSMesa ones, so glxinfo is not the tool of
> choice.
> 
> Then: It seems that Ubuntu's mesa (16.04 update) does not ship with
> llvmpipe drivers for OSMesa, so I have built OSMesa myself, without X,
> based on Utkarsh's hints at
> https://blog.kitware.com/messing-with-mesa-for-paraview-5-0vtk-7-0/.
> 
> However, it seems that no OpenGL extensions are available (see output 
> below).
> 
> Any hint how mesa needs to be compiled / what runtime variables need
> to be set in order to support OpenGL extensions in OSMesa?
> 
> Thanks,
> 
>      Sophonet
> 
> 
> Debug output:
> In [1]: import vtk
> In [2]: rw = vtk.vtkRenderWindow()
> In [3]: rw.SetOffScreenRendering(1)
> In [4]: rw.Render()
> ERROR: In
> /home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx,
> line 797
> vtkOSOpenGLRenderWindow (0x2ebb060): GL version 2.1 with the
> gpu_shader4 extension is not supported by your graphics driver but is
> required for the new OpenGL rendering backend. Please update your
> OpenGL driver. If you are using Mesa please make sure you have version
> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
> 
> In [5]: print(rw.ReportCapabilities())
> OpenGL vendor string:  VMware, Inc.
> OpenGL renderer string:  llvmpipe (LLVM 5.0, 256 bits)
> OpenGL version string:  3.3 (Core Profile) Mesa 17.3.1
> OpenGL extensions:
> 
> ---- (No OpenGL extensions are reported)
> 
> 
> On 2018-01-04 14:35, Sophonet wrote:
>> Hi list, happy new year!
>> 
>> I have compiled VTK 8.1.0 on a headless Ubuntu 16.04 with OSMesa
>> support (flags: -D VTK_RENDERING_BACKEND="OpenGL2" -D
>> VTK_OPENGL_HAS_OSMESA=True).
>> 
>> Using python (for example), I see an error about an unsupported OpenGL
>> version (see below). However, Ubuntu comes with mesa 17.2.4 (which
>> should be recent enough). Moreover, glxinfo shows "OpenGL core profile
>> version string: 3.3 (Core Profile) Mesa 17.2.4.
>> 
>> Any clues what went wrong?
>> 
>> Thanks,
>> 
>>       Sophonet
>> 
>> 
>> In [1]: import vtk
>> In [2]: rw = vtk.vtkRenderWindow()
>> In [3]: rw.SetOffScreenRendering(1)
>> In [4]: rw.Render()
>> ERROR: In
>> /home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/vtkOpenGLRenderWindow.cxx,
>> line 797
>> vtkOSOpenGLRenderWindow (0x1991250): GL version 2.1 with the
>> gpu_shader4 extension is not supported by your graphics driver but is
>> required for the new OpenGL rendering backend. Please update your
>> OpenGL driver. If you are using Mesa please make sure you have version
>> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
>> 
>> _______________________________________________
>> Powered by www.kitware.com
>> 
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>> 
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>> 
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>> 
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
> _______________________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> 
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> 
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers

From robert.aungst at gmail.com  Fri Jan  5 10:48:51 2018
From: robert.aungst at gmail.com (Robby Aungst)
Date: Fri, 5 Jan 2018 09:48:51 -0600
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <1515145455753-0.post@n5.nabble.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
 <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
 <1514987344289-0.post@n5.nabble.com>
 <CABYSrO_oDE=Mkrygbg7Ss5Ffqq9BXR4B13wCUCm2kZ7_jEQ43A@mail.gmail.com>
 <1515145455753-0.post@n5.nabble.com>
Message-ID: <CABYSrO_VprjAp4BMOonWQ15N+DMkAQwffpLOBHiOog6GaP-wgw@mail.gmail.com>

Here's what it looks like after I create the poly data:

vtkPolyData (000000000FB4D290)
  Debug: Off
  Modified Time: 18815
  Reference Count: 1
  Registered Events: (none)
  Information: 000000000FB3EDD0
  Data Released: False
  Global Release Data: Off
  UpdateTime: 0
  Field Data:
    Debug: Off
    Modified Time: 18719
    Reference Count: 1
    Registered Events: (none)
    Number Of Arrays: 0
    Number Of Components: 0
    Number Of Tuples: 0
  Number Of Points: 19
  Number Of Cells: 0
  Cell Data:
    Debug: Off
    Modified Time: 18811
    Reference Count: 1
    Registered Events:
      Registered Observers:
        vtkObserver (000000000FAFB950)
          Event: 33
          EventName: ModifiedEvent
          Command: 000000000FB3ECE0
          Priority: 0
          Tag: 1
    Number Of Arrays: 1
    Array 0 name = objtypes2
    Number Of Components: 1
    Number Of Tuples: 19
    Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
    Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
    Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
    Scalars: (none)
    Vectors: (none)
    Normals: (none)
    TCoords: (none)
    Tensors: (none)
    GlobalIds: (none)
    PedigreeIds: (none)
    EdgeFlag: (none)
  Point Data:
    Debug: Off
    Modified Time: 18814
    Reference Count: 1
    Registered Events:
      Registered Observers:
        vtkObserver (000000000FAFBB30)
          Event: 33
          EventName: ModifiedEvent
          Command: 000000000FB3ECE0
          Priority: 0
          Tag: 1
    Number Of Arrays: 2
    Array 0 name = objtypes
    Array 1 name = ZeroDColors
    Number Of Components: 4
    Number Of Tuples: 19
    Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
    Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
    Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
    Scalars:
      Debug: Off
      Modified Time: 18771
      Reference Count: 2
      Registered Events: (none)
      Name: ZeroDColors
      Data type: unsigned char
      Size: 93
      MaxId: 56
      NumberOfComponents: 3
      Information: 000000000FB3ED80
        Debug: Off
        Modified Time: 18770
        Reference Count: 1
        Registered Events: (none)
      Name: ZeroDColors
      Number Of Components: 3
      Number Of Tuples: 19
      Size: 93
      MaxId: 56
      LookupTable: (none)
    Vectors: (none)
    Normals: (none)
    TCoords: (none)
    Tensors: (none)
    GlobalIds: (none)
    PedigreeIds: (none)
    EdgeFlag: (none)
  Bounds:
    Xmin,Xmax: (-485.801, 63.3056)
    Ymin,Ymax: (-54.0469, 53.9257)
    Zmin,Zmax: (23.6906, 163.528)
  Compute Time: 21365
  Number Of Points: 19
  Point Coordinates: 000000000FAED710
  Locator: 0000000000000000
  Number Of Vertices: 0
  Number Of Lines: 0
  Number Of Polygons: 0
  Number Of Triangle Strips: 0
  Number Of Pieces: 1
  Piece: -1
  Ghost Level: 0

Here's what it looks like after it passes through the vtkWarpVector (it's
now an unstructured grid instead of poly data, and the arrays are now
missing):

vtkWarpVector (000000000AAFAAB0)
  Debug: Off
  Modified Time: 21598
  Reference Count: 2
  Registered Events: (none)
  Executive: 000000000A2DBCD0
  ErrorCode: No error
  Information: 000000000F697940
  AbortExecute: Off
  Progress: 1
  Progress Text: (None)
  Scale Factor: 10


vtkUnstructuredGrid (000000000FD7C8A0)
  Debug: Off
  Modified Time: 21553
  Reference Count: 2
  Registered Events: (none)
  Information: 000000000FB43920
  Data Released: False
  Global Release Data: Off
  UpdateTime: 21561
  Field Data:
    Debug: Off
    Modified Time: 21543
    Reference Count: 1
    Registered Events: (none)
    Number Of Arrays: 0
    Number Of Components: 0
    Number Of Tuples: 0
  Number Of Points: 0
  Number Of Cells: 0
  Cell Data:
    Debug: Off
    Modified Time: 21551
    Reference Count: 1
    Registered Events:
      Registered Observers:
        vtkObserver (000000000FD856E0)
          Event: 33
          EventName: ModifiedEvent
          Command: 000000000FB43AB0
          Priority: 0
          Tag: 1
    Number Of Arrays: 0
    Number Of Components: 0
    Number Of Tuples: 0
    Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
    Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
    Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
    Scalars: (none)
    Vectors: (none)
    Normals: (none)
    TCoords: (none)
    Tensors: (none)
    GlobalIds: (none)
    PedigreeIds: (none)
    EdgeFlag: (none)
  Point Data:
    Debug: Off
    Modified Time: 21553
    Reference Count: 1
    Registered Events:
      Registered Observers:
        vtkObserver (000000000FD858F0)
          Event: 33
          EventName: ModifiedEvent
          Command: 000000000FB43AB0
          Priority: 0
          Tag: 1
    Number Of Arrays: 0
    Number Of Components: 0
    Number Of Tuples: 0
    Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
    Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
    Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
    Scalars: (none)
    Vectors: (none)
    Normals: (none)
    TCoords: (none)
    Tensors: (none)
    GlobalIds: (none)
    PedigreeIds: (none)
    EdgeFlag: (none)
  Bounds:
    Xmin,Xmax: (1, -1)
    Ymin,Ymax: (1, -1)
    Zmin,Zmax: (1, -1)
  Compute Time: 0
  Number Of Points: 0
  Point Coordinates: 0000000000000000
  Locator: 0000000000000000
  Number Of Pieces: 1
  Piece: 0
  Ghost Level: 0

I posted a simple example earlier in the thread that replicates the
behavior I'm seeing. Thanks for your help!


On Fri, Jan 5, 2018 at 3:44 AM, Charles Kind <charles.kind at bristol.ac.uk>
wrote:

> Robby,
>
> Could you print to console, or whatever, the datastructure before and after
> WarpVectors and let me see them? ie In Python I just use
> print(datastructure).
>
> Charlie
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From yvan.mokwinski at gmail.com  Fri Jan  5 15:06:05 2018
From: yvan.mokwinski at gmail.com (Yvan Mokwinski)
Date: Fri, 5 Jan 2018 13:06:05 -0700
Subject: [vtkusers] The VTM file format and the multiblock datasets
Message-ID: <CAL8BLg+gQRst6m7n+w48SwrRLHExKrD59Uvnf0SFDcZaBp5Zew@mail.gmail.com>

Hello,

I'm struggling with the VTM file format and I need help.

I have a correct VTM file with few blocks as unstructured grids:

<VTKFile type="vtkMultiBlockDataSet" version="1.0"
byte_order="LittleEndian" header_type="UInt64">
<vtkMultiBlockDataSet>
<DataSet index="0" name="H3b_2" file="modelA4/H3b_2.vtu"></DataSet>
<DataSet index="1" name="H1b_2" file="modelA4/H1b_2.vtu"></DataSet>
<DataSet index="2" name="H2b_1" file="modelA4/H2b_1.vtu"></DataSet>
<DataSet index="3" name="H1b_1" file="modelA4/H1b_1.vtu"></DataSet>
</vtkMultiBlockDataSet>
</VTKFile>

Now I want to define 'groups' that I can check/unchecked when I visualize
the file with Paraview.

First group "MyFirstGroup" pointing to H3b_2 and H2_b1
Second group "MySecondGroup" pointing to  H2_b1 and H1b_1
Third group "MyThirdGroup" H3b_2 and H1b_1


How can I do that?

Any help would be very appreciated.
Regards,
Yvan Mokwinski
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From mrezababaee at gmail.com  Sat Jan  6 08:12:48 2018
From: mrezababaee at gmail.com (Mohammadreza Babaee)
Date: Sat, 6 Jan 2018 14:12:48 +0100
Subject: [vtkusers] Texture is corrupted after cleaning Polydata
Message-ID: <CAOE4DFUf8D7qMtMbmEPYVER56HqWkzUJrvUonm6xo6_Ps6Q24g@mail.gmail.com>

Dear all,


I have a Polydata model with its texture. The model has several duplicated
vertices. I used VtkCleanData to remove those vertices. However, I see
that  the texture is corupted and it contains several edges. Can you please
help me how I can resolve this issue.



Best regads,
eza
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From ich_daniel at habmalnefrage.de  Sat Jan  6 12:22:11 2018
From: ich_daniel at habmalnefrage.de (-Daniel-)
Date: Sat, 6 Jan 2018 10:22:11 -0700 (MST)
Subject: [vtkusers] Error by update vtk - now to version 8.1.0
Message-ID: <1515259331781-0.post@n5.nabble.com>

Hi there,

I'm trying to update vtk again, now to version 8.1. For this I set the
corresponding values in Cmake (as before with JavaWrapper, OpenGL2 etc). But
now also the module vtkDicom and also the path for GDCM are set. (I tried
the GDCM-version 2.6.6 and 2.8.0.)
CMake makes no mistakes and creates the corresponding files.
But if I want to create (or compile) the project in Visual Studio 2017 on a
64Bit Windows, I get the following error:

Error (active) E0020 The identifier ""_P_WAIT"" is not defined.    in file:  
"dicomfind.cxx"
Error C2065 "_P_WAIT": undeclared identifier   in file:    "dicomfind.cxx"


Can someone help me?
Thanks in advance



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From charles.kind at bristol.ac.uk  Sat Jan  6 14:26:59 2018
From: charles.kind at bristol.ac.uk (Charles Kind)
Date: Sat, 6 Jan 2018 12:26:59 -0700 (MST)
Subject: [vtkusers] Visualise 2d polydata
Message-ID: <1515266819693-0.post@n5.nabble.com>

Dear All,

I am having a VTK blank and need help. I have a polydata made up of 2d
(512*512) points and an unsignedchar array of colors attached. I just want
to generate a surface from this with the colors. How do I do this.

I know the data is correct as I happily use a superset of it for various 3d
interactive renderings.

Charlie



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From agpsuau at gmail.com  Sun Jan  7 16:57:33 2018
From: agpsuau at gmail.com (Adrien Suau)
Date: Sun, 7 Jan 2018 22:57:33 +0100
Subject: [vtkusers] [MPI][Parallel writer] How to use them?
In-Reply-To: <7a52a276-b065-fa5a-ef7d-b56e1d5559bf@gmail.com>
References: <7a52a276-b065-fa5a-ef7d-b56e1d5559bf@gmail.com>
Message-ID: <55fa48fc-7c2e-94ce-1eac-137c15851e7a@gmail.com>

Hi,

I'm currently trying to find a correct documentation on how to use
parallel writers provided by VTK with MPI. After something like 2h of
research on the web, here I am! Either I really don't know how to search
information, or there is no documentation at all about how to use the
parallel reader/writers of VTK...

My problem: I have several MPI processes (for the moment on my machine,
in local, but they will be distributed on several machines after). Each
of them owns data (points on a cubic region) I want to gather and plot
on a single graph.

What I tried: Assuming all the code presented below is executed on each
MPI process, and the local data of the current process is stored in
"vtkSmartPointer<vtkPolyData> data":

  * Something I found in this test file from VTK
    <https://www.vtk.org/gitweb?p=VTK.git;a=blob;f=Filters/ParallelMPI/Testing/Cxx/TestImplicitConnectivity.cxx>
    (but seems out of date as I don't have the method SetWriteMetaFile).
    ??? vtkSmartPointer<vtkXMLPPolyDataWriter> pwriter =
    vtkSmartPointer<vtkXMLPPolyDataWriter>::New();
    ??? std::string parallel_filename = std::string("Dataset_") +
    std::to_string(m_dataset_index) + std::string(".pvtp");

    ??? pwriter->SetFileName(parallel_filename.c_str());
    ??? pwriter->SetInputData(data);
    ??? pwriter->Write();
  * Something I guessed from this blog
    <https://gerstrong.github.io/blog/2016/08/20/hacking-vtk-for-parallelisation>.
    ??? // And we can save it on each process
    ??? std::string filename = std::string("Dataset_") +
    std::to_string(m_dataset_index) + std::string("_")
    ?????????????????????????? + std::to_string(m_rank) +
    std::string(".vtp");
    ??? writer->SetFileName(filename.c_str());
    #if VTK_MAJOR_VERSION <= 5
    ??? writer->SetInput(data);
    #else
    ??? writer->SetInputData(data);
    #endif
    ??? writer->Write();
    ??? if(m_rank == 0) {
    ??????? std::string parallel_filename = std::string("Dataset_") +
    std::to_string(m_dataset_index) + std::string(".pvtp");
    ??????? vtkSmartPointer<vtkXMLPPolyDataWriter> pwriter =
    vtkSmartPointer<vtkXMLPPolyDataWriter>::New();
    ??????? pwriter->SetFileName(parallel_filename.c_str());
    ??????? pwriter->SetNumberOfPieces(m_size);
    ??????? pwriter->SetStartPiece(0);
    ??????? pwriter->SetEndPiece(m_size-1);
    #if VTK_MAJOR_VERSION <= 5
    ??????? pwriter->SetInput(data);
    #else
    ??????? pwriter->SetInputData(data);
    #endif
    ??????? pwriter->Update();
    ??? }

None of them worked: the first one only create the .vtp file for process
0 (and the .ptvp file also), and the second one create 4 identical .tvp
files (and I checked, the processes don't have the same data).

So here my question: What is the correct way to use the parallel writers
of VTK?

Thanks for your time, I hope this was not a stupid question easily
answered by something I didn't found on the internet...

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From iamdpak at gmail.com  Mon Jan  8 00:18:36 2018
From: iamdpak at gmail.com (vinmean)
Date: Sun, 7 Jan 2018 22:18:36 -0700 (MST)
Subject: [vtkusers] 3D warp transform examples
Message-ID: <1515388716515-0.post@n5.nabble.com>

I have a 3D object which I need to twist and turn flexibly to reshape.  For
example, moving the top layer of the below grid should flexibly bend all the
vertical poles of the grid. So there should be some resistance to the
imposed transformation. 

<http://vtk.1045678.n5.nabble.com/file/t342070/grid.png> 

Is it possible to create such an effect using vtk? Please guide me with
examples

Thank you




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From tamim.boubou at gmail.com  Mon Jan  8 06:30:06 2018
From: tamim.boubou at gmail.com (Tamim)
Date: Mon, 8 Jan 2018 04:30:06 -0700 (MST)
Subject: [vtkusers] Run-time Boxwidget question
Message-ID: <1515411006677-0.post@n5.nabble.com>

Hello 

I'm wondering if it's possible to create more than one boxWidget during the
runtime of the program(i.e : when I press a certain character ...a new
boxWidget appears on the screen)

Is there anyway to do so ?


Thanks



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From ken.martin at kitware.com  Mon Jan  8 08:32:45 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Mon, 8 Jan 2018 08:32:45 -0500
Subject: [vtkusers] Run-time Boxwidget question
In-Reply-To: <1515411006677-0.post@n5.nabble.com>
References: <1515411006677-0.post@n5.nabble.com>
Message-ID: <CANXz0SZO7E4Mm_RN=MLVuYqRm-xd8jOhY=dpqqrMsUSPJr-ykA@mail.gmail.com>

Yes, you can have multiple box widgets at a time.

On Mon, Jan 8, 2018 at 6:30 AM, Tamim <tamim.boubou at gmail.com> wrote:

> Hello
>
> I'm wondering if it's possible to create more than one boxWidget during the
> runtime of the program(i.e : when I press a certain character ...a new
> boxWidget appears on the screen)
>
> Is there anyway to do so ?
>
>
> Thanks
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
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From tamim.boubou at gmail.com  Mon Jan  8 08:46:00 2018
From: tamim.boubou at gmail.com (Tamim)
Date: Mon, 8 Jan 2018 06:46:00 -0700 (MST)
Subject: [vtkusers] Run-time Boxwidget question
In-Reply-To: <CANXz0SZO7E4Mm_RN=MLVuYqRm-xd8jOhY=dpqqrMsUSPJr-ykA@mail.gmail.com>
References: <1515411006677-0.post@n5.nabble.com>
 <CANXz0SZO7E4Mm_RN=MLVuYqRm-xd8jOhY=dpqqrMsUSPJr-ykA@mail.gmail.com>
Message-ID: <1515419160803-0.post@n5.nabble.com>

Could you provide me with some details please ?

I'm new to VTK .

So far I'm able to create the first boxWidget and I'm also able to get the
user's input 

There's a link to my code :

multiple boxwidgets
<https://stackoverflow.com/questions/48151223/multiple-vtk-boxwidgets-in-run-time>  






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From ken.martin at kitware.com  Mon Jan  8 08:56:27 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Mon, 8 Jan 2018 08:56:27 -0500
Subject: [vtkusers] Offscreen rendering problems on headless Ubuntu
In-Reply-To: <1a2ec5064cbc7afa8bc109c40b63fc19@kant.sophonet.de>
References: <f3902c80f7742f85dee61d6ef9b548a9@kant.sophonet.de>
 <a2388dec702bbaaee6747d2757845e1e@kant.sophonet.de>
 <1a2ec5064cbc7afa8bc109c40b63fc19@kant.sophonet.de>
Message-ID: <CANXz0SZ6v6cVks4=sjWKPeqxHDQxTw9UKNjEqROen=trVjwVvQ@mail.gmail.com>

Yes, Andy made a change in VTK master recently (last week?) that I think
may fix the issue. Hopefully :-)

On Fri, Jan 5, 2018 at 10:19 AM, Sophonet <vtk12af6bc42 at kant.sophonet.de>
wrote:

> For the files: This seemed to do the trick with the :
>
> https://www.vtk.org/pipermail/vtk-developers/2017-November/035592.html
>
> Even though print(rw.ReportCapabilities()) did not reveal any extensions,
> rendering now works... hope that this gets fixed some time.
>
> Thanks,
>
>      Sophonet
>
>
> On 2018-01-05 15:42, Sophonet wrote:
>
>> One more update:
>>
>> First of all some correction: glxinfo of course shows the X rendering
>> capabilities, not the OSMesa ones, so glxinfo is not the tool of
>> choice.
>>
>> Then: It seems that Ubuntu's mesa (16.04 update) does not ship with
>> llvmpipe drivers for OSMesa, so I have built OSMesa myself, without X,
>> based on Utkarsh's hints at
>> https://blog.kitware.com/messing-with-mesa-for-paraview-5-0vtk-7-0/.
>>
>> However, it seems that no OpenGL extensions are available (see output
>> below).
>>
>> Any hint how mesa needs to be compiled / what runtime variables need
>> to be set in order to support OpenGL extensions in OSMesa?
>>
>> Thanks,
>>
>>      Sophonet
>>
>>
>> Debug output:
>> In [1]: import vtk
>> In [2]: rw = vtk.vtkRenderWindow()
>> In [3]: rw.SetOffScreenRendering(1)
>> In [4]: rw.Render()
>> ERROR: In
>> /home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/
>> vtkOpenGLRenderWindow.cxx,
>> line 797
>> vtkOSOpenGLRenderWindow (0x2ebb060): GL version 2.1 with the
>> gpu_shader4 extension is not supported by your graphics driver but is
>> required for the new OpenGL rendering backend. Please update your
>> OpenGL driver. If you are using Mesa please make sure you have version
>> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
>>
>> In [5]: print(rw.ReportCapabilities())
>> OpenGL vendor string:  VMware, Inc.
>> OpenGL renderer string:  llvmpipe (LLVM 5.0, 256 bits)
>> OpenGL version string:  3.3 (Core Profile) Mesa 17.3.1
>> OpenGL extensions:
>>
>> ---- (No OpenGL extensions are reported)
>>
>>
>> On 2018-01-04 14:35, Sophonet wrote:
>>
>>> Hi list, happy new year!
>>>
>>> I have compiled VTK 8.1.0 on a headless Ubuntu 16.04 with OSMesa
>>> support (flags: -D VTK_RENDERING_BACKEND="OpenGL2" -D
>>> VTK_OPENGL_HAS_OSMESA=True).
>>>
>>> Using python (for example), I see an error about an unsupported OpenGL
>>> version (see below). However, Ubuntu comes with mesa 17.2.4 (which
>>> should be recent enough). Moreover, glxinfo shows "OpenGL core profile
>>> version string: 3.3 (Core Profile) Mesa 17.2.4.
>>>
>>> Any clues what went wrong?
>>>
>>> Thanks,
>>>
>>>       Sophonet
>>>
>>>
>>> In [1]: import vtk
>>> In [2]: rw = vtk.vtkRenderWindow()
>>> In [3]: rw.SetOffScreenRendering(1)
>>> In [4]: rw.Render()
>>> ERROR: In
>>> /home/CODE1/dep14473/SW/source/VTK-8.1.0/Rendering/OpenGL2/
>>> vtkOpenGLRenderWindow.cxx,
>>> line 797
>>> vtkOSOpenGLRenderWindow (0x1991250): GL version 2.1 with the
>>> gpu_shader4 extension is not supported by your graphics driver but is
>>> required for the new OpenGL rendering backend. Please update your
>>> OpenGL driver. If you are using Mesa please make sure you have version
>>> 10.6.5 or later and make sure your driver in Mesa supports OpenGL 3.2.
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
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Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
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From johan.paasche at gmail.com  Mon Jan  8 09:50:05 2018
From: johan.paasche at gmail.com (KitKat)
Date: Mon, 8 Jan 2018 07:50:05 -0700 (MST)
Subject: [vtkusers] 3D visualisation of 3-dimensionnal data
Message-ID: <1515423005622-0.post@n5.nabble.com>

Hello, 

I actually work with 3-dimensionnal images on vtkImageData and vtkImageActor
/ vtkImageSliceMapper supports 

For example 500 slices of 500 * 500 pixels 

I can for now only naviguate through slices 

I would Like to know if there was any relatively light and simple  way to
display them in 3D, e.g voxels, where the blacks pixels would be
transparent, only letting me see the withe pixels in a "cube"
reepresnetation of the data. 

Thank you by advance for your responses 



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From pratamaistiadi27 at gmail.com  Mon Jan  8 10:59:44 2018
From: pratamaistiadi27 at gmail.com (123tompel)
Date: Mon, 8 Jan 2018 08:59:44 -0700 (MST)
Subject: [vtkusers] Activiz 7.1.1 Binary Build
In-Reply-To: <d4e309bc984b46c8b01f6e749a374b24@cascadeacoustic.com>
References: <d4e309bc984b46c8b01f6e749a374b24@cascadeacoustic.com>
Message-ID: <1515427184405-0.post@n5.nabble.com>

Hi Mark,

Thanks for the Build, I already download the binaries and try to debug some
codes that I have.

I have one issue though, I get this error: 
DllNotFoundException: Unable to load DLL
'Kitware.VTK.vtkRenderingOpenGL2.Unmanaged.dll': The specified module could
not be found. (Exception from HRESULT: 0x8007007E)


My code is basically rendering a 3D vtkimagedata using
vtkFixedPointVolumeRayCastMapper, and it has been succesfully build with
ActiViz 5.8. 

Maybe I am missing something?

Best regards,
Temi





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From dan.lipsa at kitware.com  Mon Jan  8 11:50:12 2018
From: dan.lipsa at kitware.com (Dan Lipsa)
Date: Mon, 8 Jan 2018 11:50:12 -0500
Subject: [vtkusers] Visualise 2d polydata
In-Reply-To: <1515266819693-0.post@n5.nabble.com>
References: <1515266819693-0.post@n5.nabble.com>
Message-ID: <CADwGrVrURqFXeHDv-VO7VAfydjtNDdrP_j4nGxJBupgi-nWJRQ@mail.gmail.com>

Charlie,
You'll need to generate a mesh from your points
https://lorensen.github.io/VTKExamples/site/Python/Modelling/DelaunayMesh/
add the array of colors to the mesh and then show the mesh

This example shows how to show a mesh colored by a scalar
https://lorensen.github.io/VTKExamples/site/Cxx/VisualizationAlgorithms/TubesFromSplines/


On Sat, Jan 6, 2018 at 2:26 PM, Charles Kind <charles.kind at bristol.ac.uk>
wrote:

> Dear All,
>
> I am having a VTK blank and need help. I have a polydata made up of 2d
> (512*512) points and an unsignedchar array of colors attached. I just want
> to generate a surface from this with the colors. How do I do this.
>
> I know the data is correct as I happily use a superset of it for various 3d
> interactive renderings.
>
> Charlie
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From charles.kind at bristol.ac.uk  Mon Jan  8 12:37:38 2018
From: charles.kind at bristol.ac.uk (Charles Kind)
Date: Mon, 8 Jan 2018 10:37:38 -0700 (MST)
Subject: [vtkusers] Visualise 2d polydata
In-Reply-To: <CADwGrVrURqFXeHDv-VO7VAfydjtNDdrP_j4nGxJBupgi-nWJRQ@mail.gmail.com>
References: <1515266819693-0.post@n5.nabble.com>
 <CADwGrVrURqFXeHDv-VO7VAfydjtNDdrP_j4nGxJBupgi-nWJRQ@mail.gmail.com>
Message-ID: <1515433058998-0.post@n5.nabble.com>

Thank you, that worked well, feel a bit silly now!

:)



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From 278124177 at qq.com  Mon Jan  8 20:18:28 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Tue, 9 Jan 2018 09:18:28 +0800
Subject: [vtkusers] QVTKWIDEGET2
Message-ID: <tencent_2C0E2C4FEFAF368D1AD1C409B2C0E5270307@qq.com>

Hi
QVTKWidget2 was deprecated for VTK 8.1 and will be removed in a future version. So what should i use to instead qvtkwidget2?
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From Andx_roo at live.com  Mon Jan  8 22:40:27 2018
From: Andx_roo at live.com (Andaharoo)
Date: Mon, 8 Jan 2018 20:40:27 -0700 (MST)
Subject: [vtkusers] 3D visualisation of 3-dimensionnal data
In-Reply-To: <1515423005622-0.post@n5.nabble.com>
References: <1515423005622-0.post@n5.nabble.com>
Message-ID: <1515469227777-0.post@n5.nabble.com>

What you are describing sounds like volume rendering. VTK has a long history
of volume rendering. You can feed a vtkImageData to a vtkSmartVolumeMapper,
then give the mapper to the vtkVolume, and give the volume to the viewer.

Then you use the transfer functions to define what intensities you do and do
not want to see. vtkVolume has a vtkVolumeProperty which has a rgb transfer
function and scalar opacity function. So I can assign an opacity of 0 to
intensity 0 (black pixels) and opacity 1 to everything else. Or assign the
color red to pixels of intensities 0 and so on... Here are some nice default
settings. Very similar to Paraviews:

vtkVolumeProperty* prop = volume->GetProperty();
prop->GetRGBTransferFunction()->SetColorSpaceToDiverging();
prop->SetInterpolationTypeToLinear();
prop->SetAmbient(0.5);
prop->SetDiffuse(0.5);
prop->SetSpecular(0.2);
// Set the default transfer function
double maxIntensity = resource->getVTKImageData()->GetScalarRange()[1]; //
Max value in the image
prop->GetRGBTransferFunction()->RemoveAllPoints();
prop->GetScalarOpacity()->RemoveAllPoints();
prop->GetRGBTransferFunction()->AddRGBPoint(0.0, 0.23, 0.3, 0.75);
prop->GetRGBTransferFunction()->AddRGBPoint(maxIntensity, 0.7, 0.0, 0.15);
prop->GetScalarOpacity()->AddPoint(0.0, 0.0);
prop->GetScalarOpacity()->AddPoint(maxIntensity, 1.0);



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From elvis.stansvik at orexplore.com  Tue Jan  9 02:50:21 2018
From: elvis.stansvik at orexplore.com (Elvis Stansvik)
Date: Tue, 9 Jan 2018 08:50:21 +0100
Subject: [vtkusers] QVTKWIDEGET2
In-Reply-To: <tencent_2C0E2C4FEFAF368D1AD1C409B2C0E5270307@qq.com>
References: <tencent_2C0E2C4FEFAF368D1AD1C409B2C0E5270307@qq.com>
Message-ID: <CAE-7VJmqpAjRiyTOBnuUP=D5i05vupKZzaFBsrBhZBZ4SnL7vQ@mail.gmail.com>

Den 9 jan. 2018 2:26 fm skrev "????" <278124177 at qq.com>:

Hi
QVTKWidget2 was deprecated for VTK 8.1 and will be removed in a future
version. So what should i use to instead qvtkwidget2?


That would be QVTKOpenGLWidget, which is based on the QOpenGLWidgetof Qt 5.

See

    https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html

and

  https://lorensen.github.io/VTKExamples/site/Cxx/Qt/RenderWindowNoUiFile/

for a very basic example.

More Qt examples at

  https://lorensen.github.io/VTKExamples/site/Cxx/#qt

Take note that with the new QVTKOpenGLWidget, you need to set the default
QSurfaceFormat before creating your Qapplication. The examples docs show
how.

HTH, Elvis


_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at http://www.kitware.com/
opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at:
http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

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From agatakrason at gmail.com  Tue Jan  9 03:44:16 2018
From: agatakrason at gmail.com (=?UTF-8?Q?Agata_Kraso=C5=84?=)
Date: Tue, 9 Jan 2018 09:44:16 +0100
Subject: [vtkusers] holes filling in decimated mesh
Message-ID: <CAKKYitNLT4+nRqNhqjqoUAb+a4V=MoyAm6i4csQTPj=7dPFNbg@mail.gmail.com>

Hello vtk users,

I have a decimated mesh. But after decimation I got mesh with holes.
I would like to fill these holes. I tried fill holes example in vtk. But it
doesn't work in this case.
Could You help me please ? Is it possible to fix this issue in vtk ?

Best,
Agata
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From johan.paasche at gmail.com  Tue Jan  9 09:06:00 2018
From: johan.paasche at gmail.com (KitKat)
Date: Tue, 9 Jan 2018 07:06:00 -0700 (MST)
Subject: [vtkusers] 3D visualisation of 3-dimensionnal data
In-Reply-To: <1515469227777-0.post@n5.nabble.com>
References: <1515423005622-0.post@n5.nabble.com>
 <1515469227777-0.post@n5.nabble.com>
Message-ID: <1515506760168-0.post@n5.nabble.com>

Thank you very much, that's exactly what i was looking for :)



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From bill.lorensen at gmail.com  Tue Jan  9 10:32:49 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Tue, 9 Jan 2018 07:32:49 -0800
Subject: [vtkusers] holes filling in decimated mesh
In-Reply-To: <CAKKYitNLT4+nRqNhqjqoUAb+a4V=MoyAm6i4csQTPj=7dPFNbg@mail.gmail.com>
References: <CAKKYitNLT4+nRqNhqjqoUAb+a4V=MoyAm6i4csQTPj=7dPFNbg@mail.gmail.com>
Message-ID: <CADZJ4hPL_wTv7bVvaf2Bc=HKYDYNrpUG_g5fdLdEhbiJ+SQjoA@mail.gmail.com>

Try applying PreserveTopologyOn() to your decimate instance...

On Tue, Jan 9, 2018 at 12:44 AM, Agata Kraso? <agatakrason at gmail.com> wrote:
> Hello vtk users,
>
> I have a decimated mesh. But after decimation I got mesh with holes.
> I would like to fill these holes. I tried fill holes example in vtk. But it
> doesn't work in this case.
> Could You help me please ? Is it possible to fix this issue in vtk ?
>
> Best,
> Agata
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



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From jellby at yahoo.com  Tue Jan  9 11:57:08 2018
From: jellby at yahoo.com (=?UTF-8?Q?Ignacio_Fern=c3=a1ndez_Galv=c3=a1n?=)
Date: Tue, 9 Jan 2018 17:57:08 +0100
Subject: [vtkusers] Enable depth peeling after initialization
Message-ID: <0fae38fc-ad72-611b-adb2-d17eae00d4a5@yahoo.com>

Hi all,

I'm trying to enable depth peeling with VTK. Currently my goal is using 
it with Mayavi and python. My problem, and a sample code, is in 
https://stackoverflow.com/questions/47738246/depth-peeling-in-mayavi.

I think the reason is that depth peeling must be enabled before 
initializing the window, but Mayavi initializes the window as soon as it 
is declared, so changing the settings after does nothing. Consider the 
following simple, pure VTK, code:

#=============================================================
import vtk

init_before = True

ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
ren.SetBackground([.2, .2, .2])

if init_before:
   # create a renderwindowinteractor
   iren = vtk.vtkRenderWindowInteractor()
   iren.SetRenderWindow(renWin)
   iren.Initialize()

# enable depth peeling
ren.SetUseDepthPeeling(1)
ren.SetOcclusionRatio(0.1)
ren.SetMaximumNumberOfPeels(100)
renWin.SetMultiSamples(0)
renWin.SetAlphaBitPlanes(1)

if not init_before:
   # create a renderwindowinteractor
   iren = vtk.vtkRenderWindowInteractor()
   iren.SetRenderWindow(renWin)
   iren.Initialize()

# create source
source = vtk.vtkCylinderSource()
source.SetCenter(0, 0, 0)
source.SetRadius(5.0)
source.SetHeight(7.0)
source.SetResolution(100)
source.Update()

# mapper
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputData(source.GetOutput())

# actor
actor = vtk.vtkActor()
actor.SetMapper(mapper)
actor.GetProperty().SetOpacity(0.5)

# assign actor to the renderer
ren.AddActor(actor)
ren.ResetCamera()

# enable user interface interactor
renWin.Render()
print ren.GetLastRenderingUsedDepthPeeling()
iren.Start()
#=============================================================

With init_before=False I get that depth peeling was used, but not with 
init_before=True.

Is there anything I can do to force and update of the render window to 
pick up the new settings? I tried iren.Reinitialize() to no avail. The 
only way I could find was removing renWin and iren and creating new 
ones, but that doesn't help with Mayavi.

Thanks,
Ignacio

From luc_j_bourhis at mac.com  Tue Jan  9 12:02:59 2018
From: luc_j_bourhis at mac.com (ljbo)
Date: Tue, 9 Jan 2018 10:02:59 -0700 (MST)
Subject: [vtkusers] Build VTK Python wrappers with custom openssl in Python
Message-ID: <1515517379818-0.post@n5.nabble.com>

I need to (1) build my own OpenSSL, then (2) build my own Python to use that
custom OpenSSL, and then (3) build VTK with support for Python wrappers. I
managed (1) and (2) but failed at (3).

I configured VTK as follow

 

The build stops here:



and many more errors: they all come from the fact that my custom OpenSSL is
not found I think.

But how can I convinced VTK build system to add a -L/path/to/my/lib when
building vtkpython? I tried setting CMAKE_EXE_LINKER_FLAGS_INIT on the
command-line but to no avail. I also checked that Python knows it has been
build with custom flags, just in case CMake would be told to use that.






--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ken.martin at kitware.com  Tue Jan  9 13:00:03 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Tue, 9 Jan 2018 13:00:03 -0500
Subject: [vtkusers] Enable depth peeling after initialization
In-Reply-To: <0fae38fc-ad72-611b-adb2-d17eae00d4a5@yahoo.com>
References: <0fae38fc-ad72-611b-adb2-d17eae00d4a5@yahoo.com>
Message-ID: <CANXz0SbdxCqJLB7F1KsW3KDZf6BHJQq-yXKkj2u+nhJgmwsLyQ@mail.gmail.com>

For VTK version 6.2 I think you are correct. Depth peeling (more
specifically alpha bitplanes probably) might have to be turned on before
the window is created. For more recent versions of VTK I don't believe that
is still the case.

On Tue, Jan 9, 2018 at 11:57 AM, Ignacio Fern?ndez Galv?n via vtkusers <
vtkusers at vtk.org> wrote:

> Hi all,
>
> I'm trying to enable depth peeling with VTK. Currently my goal is using it
> with Mayavi and python. My problem, and a sample code, is in
> https://stackoverflow.com/questions/47738246/depth-peeling-in-mayavi.
>
> I think the reason is that depth peeling must be enabled before
> initializing the window, but Mayavi initializes the window as soon as it is
> declared, so changing the settings after does nothing. Consider the
> following simple, pure VTK, code:
>
> #=============================================================
> import vtk
>
> init_before = True
>
> ren = vtk.vtkRenderer()
> renWin = vtk.vtkRenderWindow()
> renWin.AddRenderer(ren)
> ren.SetBackground([.2, .2, .2])
>
> if init_before:
>   # create a renderwindowinteractor
>   iren = vtk.vtkRenderWindowInteractor()
>   iren.SetRenderWindow(renWin)
>   iren.Initialize()
>
> # enable depth peeling
> ren.SetUseDepthPeeling(1)
> ren.SetOcclusionRatio(0.1)
> ren.SetMaximumNumberOfPeels(100)
> renWin.SetMultiSamples(0)
> renWin.SetAlphaBitPlanes(1)
>
> if not init_before:
>   # create a renderwindowinteractor
>   iren = vtk.vtkRenderWindowInteractor()
>   iren.SetRenderWindow(renWin)
>   iren.Initialize()
>
> # create source
> source = vtk.vtkCylinderSource()
> source.SetCenter(0, 0, 0)
> source.SetRadius(5.0)
> source.SetHeight(7.0)
> source.SetResolution(100)
> source.Update()
>
> # mapper
> mapper = vtk.vtkPolyDataMapper()
> mapper.SetInputData(source.GetOutput())
>
> # actor
> actor = vtk.vtkActor()
> actor.SetMapper(mapper)
> actor.GetProperty().SetOpacity(0.5)
>
> # assign actor to the renderer
> ren.AddActor(actor)
> ren.ResetCamera()
>
> # enable user interface interactor
> renWin.Render()
> print ren.GetLastRenderingUsedDepthPeeling()
> iren.Start()
> #=============================================================
>
> With init_before=False I get that depth peeling was used, but not with
> init_before=True.
>
> Is there anything I can do to force and update of the render window to
> pick up the new settings? I tried iren.Reinitialize() to no avail. The only
> way I could find was removing renWin and iren and creating new ones, but
> that doesn't help with Mayavi.
>
> Thanks,
> Ignacio
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
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From chris.marsh at usask.ca  Tue Jan  9 18:32:09 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Tue, 9 Jan 2018 17:32:09 -0600
Subject: [vtkusers] Don't build vtkproj4?
Message-ID: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>

Hi,

Is there a way to stop vtkproj4 from being built? It seems to be
conflicting with another version of proj4 I am building for my application.

Cheers
Chris
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From chenshaoqiang at buaa.edu.cn  Tue Jan  9 23:28:25 2018
From: chenshaoqiang at buaa.edu.cn (chensq)
Date: Wed, 10 Jan 2018 12:28:25 +0800
Subject: [vtkusers] How to use ColorByArrayComponent?
Message-ID: <60D8B35BFBC04F56B2F4E26256802DAF@chensqPC>

Hello vtkers.
I used to think that I can use vtkMapper?s ColorByArrayComponent to set a array component to transfer value to color just as the scalar data.
So, I added just one line of code : pMapper->ColorByArrayComponent("aArrayName", 0);
But there is nothing happened!
Now, I have to copy values in the array into scalar data.
Does anyone can tell me what I have done wrong?
Sincerely Chen.
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From bakkari.abdelkhalek at hotmail.fr  Wed Jan 10 04:33:47 2018
From: bakkari.abdelkhalek at hotmail.fr (Abdelkhalek Bakkari)
Date: Wed, 10 Jan 2018 09:33:47 +0000
Subject: [vtkusers] vtkSTLReader and QString
Message-ID: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>

Hi All,


I tried to read an STL file using  vtkSTLReader  from a directory as follows:



-------------------------

QString fileName = QFileDialog::getOpenFileName( this, tr("Open File"), "C:\\", tr("Mesh (*.stl *.vtk)"));
if (fileName.isNull()) //user cancelled
return EXIT_FAILURE;

m_imagePath = fileName;
//Create an STL reader for reading the file
vtkSmartPointer<vtkSTLReader> reader = vtkSmartPointer<vtkSTLReader>::New();
//reader->SetFileName(pathName.c_str());
reader->SetFileName(fileName.toStdString());
reader->Update();
-------------------------


But, I've got the following error  :

'vtkAbstractPolyDataReader::SetFileName' : cannot convert parameter 1 from 'std::string' to 'const char *'


Could you please propose a solution for this issue?





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From DLRdave at aol.com  Wed Jan 10 07:13:55 2018
From: DLRdave at aol.com (David Cole)
Date: Wed, 10 Jan 2018 07:13:55 -0500
Subject: [vtkusers] vtkSTLReader and QString
In-Reply-To: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
References: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
Message-ID: <CAKME8fFCcJthX_aikvu7bhJjPXW-si+SG8q7ybNL5afu3YBnxA@mail.gmail.com>

Have you tried

"reader->SetFileName(fileName.toStdString().c_str());"

?



On Wed, Jan 10, 2018 at 4:33 AM, Abdelkhalek Bakkari
<bakkari.abdelkhalek at hotmail.fr> wrote:
> Hi All,
>
>
> I tried to read an STL file using  vtkSTLReader  from a directory as
> follows:
>
>
>
> -------------------------
>
> QString fileName = QFileDialog::getOpenFileName( this, tr("Open File"),
> "C:\\", tr("Mesh (*.stl *.vtk)"));
> if (fileName.isNull()) //user cancelled
> return EXIT_FAILURE;
>
> m_imagePath = fileName;
> //Create an STL reader for reading the file
> vtkSmartPointer<vtkSTLReader> reader = vtkSmartPointer<vtkSTLReader>::New();
> //reader->SetFileName(pathName.c_str());
> reader->SetFileName(fileName.toStdString());
> reader->Update();
> -------------------------
>
>
> But, I've got the following error  :
>
> 'vtkAbstractPolyDataReader::SetFileName' : cannot convert parameter 1 from
> 'std::string' to 'const char *'
>
>
> Could you please propose a solution for this issue?
>
>
>
>
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>

From ben.boeckel at kitware.com  Wed Jan 10 07:58:44 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Wed, 10 Jan 2018 07:58:44 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
Message-ID: <20180110125844.GA1305@megas.kitware.com>

On Tue, Jan 09, 2018 at 17:32:09 -0600, Chris Marsh wrote:
> Is there a way to stop vtkproj4 from being built? It seems to be
> conflicting with another version of proj4 I am building for my application.

You can tell VTK to use an external proj4 using VTK_USE_SYSTEM_libproj4.

--Ben

From shawn.waldon at kitware.com  Wed Jan 10 09:24:38 2018
From: shawn.waldon at kitware.com (Shawn Waldon)
Date: Wed, 10 Jan 2018 09:24:38 -0500
Subject: [vtkusers] vtkSTLReader and QString
In-Reply-To: <CAKME8fFCcJthX_aikvu7bhJjPXW-si+SG8q7ybNL5afu3YBnxA@mail.gmail.com>
References: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
 <CAKME8fFCcJthX_aikvu7bhJjPXW-si+SG8q7ybNL5afu3YBnxA@mail.gmail.com>
Message-ID: <CALSpCT2_KM=R1=U2XQc3PhgDd0mgHwuPd550n92wtuDERfjyiQ@mail.gmail.com>

On Wed, Jan 10, 2018 at 7:13 AM, David Cole via vtkusers <vtkusers at vtk.org>
wrote:

> Have you tried
>
> "reader->SetFileName(fileName.toStdString().c_str());"
>
> ?
>
> If your filename may have international characters in it, you will want
filename.toLocal8Bit().data() instead.  But filename.toStdString().c_str()
will work fine with only ASCII in the filename.

HTH,
Shawn

>
>
> On Wed, Jan 10, 2018 at 4:33 AM, Abdelkhalek Bakkari
> <bakkari.abdelkhalek at hotmail.fr> wrote:
> > Hi All,
> >
> >
> > I tried to read an STL file using  vtkSTLReader  from a directory as
> > follows:
> >
> >
> >
> > -------------------------
> >
> > QString fileName = QFileDialog::getOpenFileName( this, tr("Open File"),
> > "C:\\", tr("Mesh (*.stl *.vtk)"));
> > if (fileName.isNull()) //user cancelled
> > return EXIT_FAILURE;
> >
> > m_imagePath = fileName;
> > //Create an STL reader for reading the file
> > vtkSmartPointer<vtkSTLReader> reader = vtkSmartPointer<vtkSTLReader>:
> :New();
> > //reader->SetFileName(pathName.c_str());
> > reader->SetFileName(fileName.toStdString());
> > reader->Update();
> > -------------------------
> >
> >
> > But, I've got the following error  :
> >
> > 'vtkAbstractPolyDataReader::SetFileName' : cannot convert parameter 1
> from
> > 'std::string' to 'const char *'
> >
> >
> > Could you please propose a solution for this issue?
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > https://vtk.org/mailman/listinfo/vtkusers
> >
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From zhurkulis at gmail.com  Wed Jan 10 09:55:48 2018
From: zhurkulis at gmail.com (nolvis)
Date: Wed, 10 Jan 2018 07:55:48 -0700 (MST)
Subject: [vtkusers] Matlabs imfill alternative?
Message-ID: <1515596148218-0.post@n5.nabble.com>

Hello, is there any alternative method in VTK, similliar to matlabs
image-processing toolboxes method  Imfill
<https://se.mathworks.com/help/images/ref/imfill.html>  ?




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From chris.marsh at usask.ca  Wed Jan 10 10:24:53 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Wed, 10 Jan 2018 09:24:53 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <20180110125844.GA1305@megas.kitware.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
Message-ID: <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>

Great, thanks!

I am custom building proj4. What is the best way to tell VTK's CMake where
to look for proj4?

Cheers
Chris

On 10 January 2018 at 06:58, Ben Boeckel <ben.boeckel at kitware.com> wrote:

> On Tue, Jan 09, 2018 at 17:32:09 -0600, Chris Marsh wrote:
> > Is there a way to stop vtkproj4 from being built? It seems to be
> > conflicting with another version of proj4 I am building for my
> application.
>
> You can tell VTK to use an external proj4 using VTK_USE_SYSTEM_libproj4.
>
> --Ben
>
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From ben.boeckel at kitware.com  Wed Jan 10 10:36:01 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Wed, 10 Jan 2018 10:36:01 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
Message-ID: <20180110153601.GA21857@megas.kitware.com>

On Wed, Jan 10, 2018 at 09:24:53 -0600, Chris Marsh wrote:
> Great, thanks!
> 
> I am custom building proj4. What is the best way to tell VTK's CMake where
> to look for proj4?

The find module seems to use the LIBPROJ4_DIR environment variable if
available. It should be the install prefix of proj4.

--Ben

From ltriana at uclv.cu  Wed Jan 10 06:21:50 2018
From: ltriana at uclv.cu (=?iso-8859-1?Q?Laura_P=E9rez_Triana?=)
Date: Wed, 10 Jan 2018 12:21:50 +0100
Subject: [vtkusers] compiling vtk for Android
Message-ID: <000e01d38a05$39409640$abc1c2c0$@uclv.cu>

Why the class vtkScalarBarActor does not exists in VTK 7 compiled for
Android. I have tried to use it, also I tried to import it manually, but
none of these work


Also I?m getting several errors compiling vtk 8 for Android in this
environment:

Windows 10

Cmake 3.8.0

CodeBlocks 16.01

 

Anyone can help me to resolve the problems?

Thanks!

 

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From koopman.mk at gmail.com  Wed Jan 10 12:31:31 2018
From: koopman.mk at gmail.com (Martijn Koopman)
Date: Wed, 10 Jan 2018 18:31:31 +0100
Subject: [vtkusers] QVTKWIDEGET2
In-Reply-To: <CAE-7VJmqpAjRiyTOBnuUP=D5i05vupKZzaFBsrBhZBZ4SnL7vQ@mail.gmail.com>
References: <tencent_2C0E2C4FEFAF368D1AD1C409B2C0E5270307@qq.com>
 <CAE-7VJmqpAjRiyTOBnuUP=D5i05vupKZzaFBsrBhZBZ4SnL7vQ@mail.gmail.com>
Message-ID: <CAKX6OK7AYO-T0d9W7-k4YxHdj0Tg4F2ovyEzeg_83Qr_16BLEw@mail.gmail.com>

Hi,

See also https://github.com/martijnkoopman/Qt-VTK-viewer

It is a template project I use for Qt + VTK.

Regards,
Martijn



Op 9 jan. 2018 08:50 schreef "Elvis Stansvik" <elvis.stansvik at orexplore.com>
:

> Den 9 jan. 2018 2:26 fm skrev "????" <278124177 at qq.com>:
>
> Hi
> QVTKWidget2 was deprecated for VTK 8.1 and will be removed in a future
> version. So what should i use to instead qvtkwidget2?
>
>
> That would be QVTKOpenGLWidget, which is based on the QOpenGLWidgetof Qt 5.
>
> See
>
>     https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html
>
> and
>
>   https://lorensen.github.io/VTKExamples/site/Cxx/Qt/RenderWindowNoUiFile/
>
> for a very basic example.
>
> More Qt examples at
>
>   https://lorensen.github.io/VTKExamples/site/Cxx/#qt
>
> Take note that with the new QVTKOpenGLWidget, you need to set the default
> QSurfaceFormat before creating your Qapplication. The examples docs show
> how.
>
> HTH, Elvis
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
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From zhurkulis at gmail.com  Wed Jan 10 13:57:29 2018
From: zhurkulis at gmail.com (nolvis)
Date: Wed, 10 Jan 2018 11:57:29 -0700 (MST)
Subject: [vtkusers] vtkSTLReader and QString
In-Reply-To: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
References: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
Message-ID: <1515610649731-0.post@n5.nabble.com>

Convert string to c string

fileName.toStdString().c_str()



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From marcus.hanwell at kitware.com  Wed Jan 10 14:13:48 2018
From: marcus.hanwell at kitware.com (Marcus D. Hanwell)
Date: Wed, 10 Jan 2018 14:13:48 -0500
Subject: [vtkusers] vtkSTLReader and QString
In-Reply-To: <CALSpCT2_KM=R1=U2XQc3PhgDd0mgHwuPd550n92wtuDERfjyiQ@mail.gmail.com>
References: <VI1PR0902MB204653A532CB86B69F45FFE883110@VI1PR0902MB2046.eurprd09.prod.outlook.com>
 <CAKME8fFCcJthX_aikvu7bhJjPXW-si+SG8q7ybNL5afu3YBnxA@mail.gmail.com>
 <CALSpCT2_KM=R1=U2XQc3PhgDd0mgHwuPd550n92wtuDERfjyiQ@mail.gmail.com>
Message-ID: <CAMkPkZX+hh+CKuzT_+-6ObSicVxduwu0rQaYJqLL=tHep1_tuw@mail.gmail.com>

On Wed, Jan 10, 2018 at 9:24 AM, Shawn Waldon <shawn.waldon at kitware.com>
wrote:
>
> On Wed, Jan 10, 2018 at 7:13 AM, David Cole via vtkusers <vtkusers at vtk.org
> > wrote:
>
>> Have you tried
>>
>> "reader->SetFileName(fileName.toStdString().c_str());"
>>
>> ?
>>
>> If your filename may have international characters in it, you will want
> filename.toLocal8Bit().data() instead.  But filename.toStdString().c_str()
> will work fine with only ASCII in the filename.
>
> I have been bitten by this a few times, when dealing with files, the STL,
etc you really need to be careful to use toLocal8Bit(), see
https://bugreports.qt.io/browse/QTBUG-39086 for some further background.
You will of course be fine until you encounter non Latin characters, so
toLatin1 or toStdString may work out for common use cases with US-based
users.

Marcus
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From patriciop at gmail.com  Wed Jan 10 15:05:27 2018
From: patriciop at gmail.com (Patricio Palma C.)
Date: Wed, 10 Jan 2018 20:05:27 +0000
Subject: [vtkusers] Second order data interpolation
Message-ID: <CADJb00zCd33q=+suvRkPkfOta_witgZ2T7bL4Dt--50agmZNGA@mail.gmail.com>

Hello,
 I am interested in using second order interpolation for visualization and
probing. Do vtkProbeFilter and vtkBandedPolyDataContourFilter support
second order interpolation?

Regards
Patricio
-- 
Patricio Palma C.
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From stephen.langer at nist.gov  Wed Jan 10 17:44:20 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Wed, 10 Jan 2018 22:44:20 +0000
Subject: [vtkusers] Coincident topology questions
Message-ID: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>

Hi --

How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology methods?  I can't find an explanation for 'factor' and 'units'.

The attached screenshot shows a surface representation of a grid of rectangular voxels and a wire-frame grid of tetrahedra.  Four of the tetrahedral elements are also drawn with a surface representation in red and are supposed to obscure the voxels, but a mix of tex and voxel is drawn instead.  The surfaces of the voxels and the tetrahedral are coplanar.  They don't share nodes and edges, but the points on the x=0 face all have x=0 exactly.  Is the coincident topology resolution machinery expected to work in this case?   

I'm using vtk 8.1.0.

Thanks.
 
      -- Steve

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From ken.martin at kitware.com  Wed Jan 10 19:51:46 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 10 Jan 2018 19:51:46 -0500
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
Message-ID: <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>

Here is part of an old email that has some description

You can use the relative settings if the two coincident polygons are in two
different mappers.

* On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at
kitware.com <http://public.kitware.com/mailman/listinfo/vtkusers>>
wrote:
*>>>>>* I wanted to take a second to write up a recent change I made to how VTK
*>>* (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK
*>>* supported global values for specifying a polygonal offset to push surfaces
*>>* forward or back in the zbuffer. This was often used to draw a surface back
*>>* a bit in the zbuffer, and then draw the same surface in wireframe mode at
*>>* the normal z location. The result was a wireframe overlaid on top of the
*>>* surface. This approach faced a couple limitations. Every surface was offset
*>>* the same amount and there was no way to offset points from lines.  To
*>>* address this I have added a few methods to vtkMapper to specify global line
*>>* and point offsets as well as ivars to hold local offsets per mapper. The
*>>* global methods look like:
*>>>>*   static void SetResolveCoincidentTopologyLineOffsetParameters(
*>>*     double factor, double units);
*>>>>* while the instance methods look like:
*>>>>*   void SetRelativeCoincidentTopologyLineOffsetParameters(
*>>*     double factor, double units);
*>>>>* Both signatures use two parameters which are worth mentioning. The first
*>>* factor is how much to shift the zbuffer based on how quickly the z values
*>>* of the surface or line changes. This may seem complicated but it addresses
*>>* a simple issue.  Due to rasterization issues, surfaces and lines with sharp
*>>* zvalue slopes are more prone to noise in the zvalues they produce. To
*>>* combat that, we offset them by an amount that is based on their z slope. If
*>>* the surface is perpendicular to the view direction the factor is
*>>* irrelevant, but the more the surface is at a sharp angle to the view
*>>* direction, the more the factor comes into play. A value of 1.0 to 2.0 is
*>>* fairly typical for the factor. The second parameter is the units, a
*>>* constant offset to the zbuffer. It is currently specified conservatively in
*>>* terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is
*>>* a good place to start. For rendering points we do not have a slope so those
*>>* methods only take the units argument.
*>>>>* I have changed the global defaults so that surfaces are offset at
*>>* 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new
*>>* test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top
*>>* of lines on top of a surface while rendering the points first and the
*>>* surface last (the opposite order of their visibility).
*>>>>* Thanks
*>>* Ken*



On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> Hi --
>
> How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology
> methods?  I can't find an explanation for 'factor' and 'units'.
>
> The attached screenshot shows a surface representation of a grid of
> rectangular voxels and a wire-frame grid of tetrahedra.  Four of the
> tetrahedral elements are also drawn with a surface representation in red
> and are supposed to obscure the voxels, but a mix of tex and voxel is drawn
> instead.  The surfaces of the voxels and the tetrahedral are coplanar.
> They don't share nodes and edges, but the points on the x=0 face all have
> x=0 exactly.  Is the coincident topology resolution machinery expected to
> work in this case?
>
> I'm using vtk 8.1.0.
>
> Thanks.
>
>       -- Steve
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From bastian.heller at isko-engineers.de  Thu Jan 11 00:45:35 2018
From: bastian.heller at isko-engineers.de (Heller, Bastian)
Date: Thu, 11 Jan 2018 05:45:35 +0000
Subject: [vtkusers] vtkMultiBlockDataSets: Pipeline does not get updated in
 Release 8
Message-ID: <a41d461af64a496f9a1f567fe30cfaa0@exchange1s0.ISKO.NET>

Hello everyone,

i am developing a tool where I need to visualize geometries consisting of multiple (>100) blocks as unstructured grids. In order to handle these structures efficiently, i?d like to use vtkMultiBlockDataSets. Geometries are extracted using a vtkGeometryFilter, connected to a vtkCompositePolyDataMapper2. The code I am using to link the elements is as follows:

vtkSmartPointer<vtkCompositeDataPipeline> exec =
                vtkSmartPointer<vtkCompositeDataPipeline>::New();
vtkAlgorithm::SetDefaultExecutivePrototype(exec);

/* Create a display attributes set for the mapper */
vtkSmartPointer<vtkCompositeDataDisplayAttributes> spAttribs =
                vtkSmartPointer<vtkCompositeDataDisplayAttributes>::New();

/* Datasets */
vtkSmartPointer<vtkMultiBlockDataSet> _spMbMeshes =
                vtkSmartPointer<vtkMultiBlockDataSet>::New();
_spMbMeshes->SetNumberOfBlocks(0);

/* Filters and mappers */
vtkSmartPointer<vtkGeometryFilter> _spMeshFilter =
                vtkSmartPointer<vtkGeometryFilter>::New();
vtkSmartPointer<vtkCompositePolyDataMapper2> _spMeshMapper =
                vtkSmartPointer<vtkCompositePolyDataMapper2>::New();
vtkSmartPointer<vtkActor> _spMeshActor = vtkSmartPointer<vtkActor>::New();

/* Create connections */
_spMeshMapper->SetCompositeDataDisplayAttributes(spAttribs);
_spMeshFilter->SetInputData(this->_spMbMeshes);
_spMeshMapper->SetInputConnection(this->_spMeshFilter->GetOutputPort());
_spMeshActor->SetMapper(this->_spMeshMapper);

/* Add actors to renderer */
_spRenderer->AddActor(this->_spMeshActor);

Now, when I add blocks to the multiblock (_spMbMeshes), in VTK 7.1.1, everything executes correctly and the elements are shown. However, when I switch to VTK 8.1, only one of the datasets I added will be shown (which seemed to be the last one added to the block). I didn?t find any information in the changelogs, regarding this issue.

My question: Where am I going wrong and what do I have to change to make this code work in VTK 8? Thank you very much in advance.

Yours,

Bastian



Bastian Heller

CAE Prozesse und Optimierung - Services & Development

ISKO engineers AG
Marie-Curie-Stra?e 2, 85055 Ingolstadt
Fon: +49 8458 3112-286
Fax: +49 8458 3112-199

Mail: bastian.heller at isko-engineers.de


[cid:image6d0d3a.JPG at 14162914.41988cf9]<http://www.simuspace.de>



http://www.isko-engineers.de
http://www.simuspace.de

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From 278124177 at qq.com  Thu Jan 11 03:41:03 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Thu, 11 Jan 2018 16:41:03 +0800
Subject: [vtkusers] How to render volume on mac
Message-ID: <tencent_EF6F9FB6B21AFBC431B2F7652C032F2C3B07@qq.com>

i can not find  a class  like vktGpuvolumemapper to render volume  on mac?so  is there any way to do this?
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From bakkari.abdelkhalek at hotmail.fr  Thu Jan 11 06:11:32 2018
From: bakkari.abdelkhalek at hotmail.fr (Abdelkhalek Bakkari)
Date: Thu, 11 Jan 2018 11:11:32 +0000
Subject: [vtkusers] visualize vtkPolyData with CORONAL,
 SAGITALL and AXIAL planes
Message-ID: <VI1PR0902MB204668C551075662CC8274CA83160@VI1PR0902MB2046.eurprd09.prod.outlook.com>

Dear ALL,


I would like to visualize vtkPolyData with CORONAL, SAGITALL and AXIAL planes.

Is there any VTK pipeline to get it done, please ?


Regards,
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From bill.lorensen at gmail.com  Thu Jan 11 11:19:33 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Thu, 11 Jan 2018 08:19:33 -0800
Subject: [vtkusers] visualize vtkPolyData with CORONAL,
 SAGITALL and AXIAL planes
In-Reply-To: <VI1PR0902MB204668C551075662CC8274CA83160@VI1PR0902MB2046.eurprd09.prod.outlook.com>
References: <VI1PR0902MB204668C551075662CC8274CA83160@VI1PR0902MB2046.eurprd09.prod.outlook.com>
Message-ID: <CADZJ4hPsF7Yb3hYp+zj5V4uYXECUyD1x4KPV5pZhCygqqnnhgw@mail.gmail.com>

https://lorensen.github.io/VTKExamples/site/Cxx/Medical/MedicalDemo3/


On Thu, Jan 11, 2018 at 3:11 AM, Abdelkhalek Bakkari
<bakkari.abdelkhalek at hotmail.fr> wrote:
> Dear ALL,
>
>
> I would like to visualize vtkPolyData with CORONAL, SAGITALL and AXIAL
> planes.
>
> Is there any VTK pipeline to get it done, please ?
>
>
> Regards,
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From bakkari.abdelkhalek at hotmail.fr  Thu Jan 11 11:27:24 2018
From: bakkari.abdelkhalek at hotmail.fr (Abdelkhalek Bakkari)
Date: Thu, 11 Jan 2018 16:27:24 +0000
Subject: [vtkusers] visualize vtkPolyData with CORONAL,
 SAGITALL and AXIAL planes
In-Reply-To: <CADZJ4hPsF7Yb3hYp+zj5V4uYXECUyD1x4KPV5pZhCygqqnnhgw@mail.gmail.com>
References: <VI1PR0902MB204668C551075662CC8274CA83160@VI1PR0902MB2046.eurprd09.prod.outlook.com>,
 <CADZJ4hPsF7Yb3hYp+zj5V4uYXECUyD1x4KPV5pZhCygqqnnhgw@mail.gmail.com>
Message-ID: <VI1PR0902MB2046869B6A3FECF3D0829E2583160@VI1PR0902MB2046.eurprd09.prod.outlook.com>

Thank you for your answer. But, my input is a mesh and not an image :



/Create an VTK reader for reading the file
vtkSmartPointer<vtkGenericDataObjectReader> readerVtk =  vtkSmartPointer<vtkGenericDataObjectReader>::New();
readerVtk->SetFileName(fileName.toStdString().c_str());
readerVtk->Update();


//// Convert the mesh to polydata

vtkPolyData* output = readerVtk->GetPolyDataOutput();
Kind regards,


________________________________
From: Bill Lorensen <bill.lorensen at gmail.com>
Sent: 11 January 2018 17:19
To: Abdelkhalek Bakkari
Cc: VTK Mailing List
Subject: Re: [vtkusers] visualize vtkPolyData with CORONAL, SAGITALL and AXIAL planes

https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Florensen.github.io%2FVTKExamples%2Fsite%2FCxx%2FMedical%2FMedicalDemo3%2F&data=02%7C01%7C%7Cd3cce4b6cccc4c3c86d708d5590f1a5d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636512843754185800&sdata=RV6ISJfkVpiTXOmyfbFLQ3ilYxzrXvOokbxCRjxgKR4%3D&reserved=0


On Thu, Jan 11, 2018 at 3:11 AM, Abdelkhalek Bakkari
<bakkari.abdelkhalek at hotmail.fr> wrote:
> Dear ALL,
>
>
> I would like to visualize vtkPolyData with CORONAL, SAGITALL and AXIAL
> planes.
>
> Is there any VTK pipeline to get it done, please ?
>
>
> Regards,
>
>
> _______________________________________________
> Powered by https://eur02.safelinks.protection.outlook.com/?url=www.kitware.com&data=02%7C01%7C%7Cd3cce4b6cccc4c3c86d708d5590f1a5d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636512843754185800&sdata=cvKzkInY%2Fl1hSNzZf%2BDcO8JiMz33C4mllarpQaIlAyw%3D&reserved=0
>
> Visit other Kitware open-source projects at
> https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com%2Fopensource%2Fopensource.html&data=02%7C01%7C%7Cd3cce4b6cccc4c3c86d708d5590f1a5d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636512843754185800&sdata=KHRMGvkFgnVjHouOu%2FAQ%2F%2F4%2FkFWxxKmj83I4xHuAqNw%3D&reserved=0
>
> Please keep messages on-topic and check the VTK FAQ at:
> https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.vtk.org%2FWiki%2FVTK_FAQ&data=02%7C01%7C%7Cd3cce4b6cccc4c3c86d708d5590f1a5d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636512843754185800&sdata=3s60WathOJPh3dNC2B9cvYbSHBSiaQJIES%2BPMTdAeWQ%3D&reserved=0
>
> Search the list archives at: https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmarkmail.org%2Fsearch%2F%3Fq%3Dvtkusers&data=02%7C01%7C%7Cd3cce4b6cccc4c3c86d708d5590f1a5d%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636512843754185800&sdata=O%2F5DLCGeJv%2BqL2vT0z20%2Fi6%2B4nSN2UykYTFw5Q8j%2Fjs%3D&reserved=0
>
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>



--
Unpaid intern in BillsBasement at noware dot com
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From chris.marsh at usask.ca  Thu Jan 11 12:41:40 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Thu, 11 Jan 2018 11:41:40 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <20180110153601.GA21857@megas.kitware.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
Message-ID: <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>

Thanks for the details. This doesn't seem to be working for me though. I've
tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as well
as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however neither
works. I still see the vtklibproj4 in the output of ldd.

Any suggestions?

On 10 January 2018 at 09:36, Ben Boeckel <ben.boeckel at kitware.com> wrote:

> On Wed, Jan 10, 2018 at 09:24:53 -0600, Chris Marsh wrote:
> > Great, thanks!
> >
> > I am custom building proj4. What is the best way to tell VTK's CMake
> where
> > to look for proj4?
>
> The find module seems to use the LIBPROJ4_DIR environment variable if
> available. It should be the install prefix of proj4.
>
> --Ben
>
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From ben.boeckel at kitware.com  Thu Jan 11 14:29:37 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Thu, 11 Jan 2018 14:29:37 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
Message-ID: <20180111192937.GA11091@megas.kitware.com>

On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
> Thanks for the details. This doesn't seem to be working for me though. I've
> tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as well
> as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however neither
> works. I still see the vtklibproj4 in the output of ldd.

CMake should be getting the flag. If you do:

    grep -i proj4 CMakeCache.txt

do any variables stand out as potentially being set to use the internal
one?

--Ben

From stephen.langer at nist.gov  Thu Jan 11 14:30:41 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Thu, 11 Jan 2018 19:30:41 +0000
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
Message-ID: <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>

So if I use
     vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
and
     mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
then polygons drawn with that mapper should obscure coincident polygons drawn with other mappers?  That's not happening.    What am I missing?

-- Steve

From: Ken Martin <ken.martin at kitware.com>
Date: Wednesday, January 10, 2018 at 7:52 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] Coincident topology questions

Here is part of an old email that has some description

You can use the relative settings if the two coincident polygons are in two different mappers.


 On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:

>

>>

>> I wanted to take a second to write up a recent change I made to how VTK

>> (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK

>> supported global values for specifying a polygonal offset to push surfaces

>> forward or back in the zbuffer. This was often used to draw a surface back

>> a bit in the zbuffer, and then draw the same surface in wireframe mode at

>> the normal z location. The result was a wireframe overlaid on top of the

>> surface. This approach faced a couple limitations. Every surface was offset

>> the same amount and there was no way to offset points from lines.  To

>> address this I have added a few methods to vtkMapper to specify global line

>> and point offsets as well as ivars to hold local offsets per mapper. The

>> global methods look like:

>>

>>   static void SetResolveCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> while the instance methods look like:

>>

>>   void SetRelativeCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> Both signatures use two parameters which are worth mentioning. The first

>> factor is how much to shift the zbuffer based on how quickly the z values

>> of the surface or line changes. This may seem complicated but it addresses

>> a simple issue.  Due to rasterization issues, surfaces and lines with sharp

>> zvalue slopes are more prone to noise in the zvalues they produce. To

>> combat that, we offset them by an amount that is based on their z slope. If

>> the surface is perpendicular to the view direction the factor is

>> irrelevant, but the more the surface is at a sharp angle to the view

>> direction, the more the factor comes into play. A value of 1.0 to 2.0 is

>> fairly typical for the factor. The second parameter is the units, a

>> constant offset to the zbuffer. It is currently specified conservatively in

>> terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is

>> a good place to start. For rendering points we do not have a slope so those

>> methods only take the units argument.

>>

>> I have changed the global defaults so that surfaces are offset at

>> 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new

>> test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top

>> of lines on top of a surface while rendering the points first and the

>> surface last (the opposite order of their visibility).

>>

>> Thanks

>> Ken


On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology methods?  I can't find an explanation for 'factor' and 'units'.

The attached screenshot shows a surface representation of a grid of rectangular voxels and a wire-frame grid of tetrahedra.  Four of the tetrahedral elements are also drawn with a surface representation in red and are supposed to obscure the voxels, but a mix of tex and voxel is drawn instead.  The surfaces of the voxels and the tetrahedral are coplanar.  They don't share nodes and edges, but the points on the x=0 face all have x=0 exactly.  Is the coincident topology resolution machinery expected to work in this case?

I'm using vtk 8.1.0.

Thanks.

      -- Steve


_______________________________________________
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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From ken.martin at kitware.com  Thu Jan 11 14:41:33 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Thu, 11 Jan 2018 14:41:33 -0500
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
 <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
Message-ID: <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>

Yes, that should work and -3, -3 is pretty reasonable for values. Something
odd is going on. Can you give a bit more detail or a snippet of code?


On Thu, Jan 11, 2018 at 2:30 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> So if I use
>
>      vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
>
> and
>
>      mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
>
> then polygons drawn with that mapper should obscure coincident polygons
> drawn with other mappers?  That's not happening.    What am I missing?
>
>
>
> -- Steve
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Wednesday, January 10, 2018 at 7:52 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Here is part of an old email that has some description
>
>
>
> You can use the relative settings if the two coincident polygons are in
> two different mappers.
>
>
>
> * On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:*
>
> >
>
> >>
>
> >>* I wanted to take a second to write up a recent change I made to how VTK*
>
> >>* (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK*
>
> >>* supported global values for specifying a polygonal offset to push surfaces*
>
> >>* forward or back in the zbuffer. This was often used to draw a surface back*
>
> >>* a bit in the zbuffer, and then draw the same surface in wireframe mode at*
>
> >>* the normal z location. The result was a wireframe overlaid on top of the*
>
> >>* surface. This approach faced a couple limitations. Every surface was offset*
>
> >>* the same amount and there was no way to offset points from lines.  To*
>
> >>* address this I have added a few methods to vtkMapper to specify global line*
>
> >>* and point offsets as well as ivars to hold local offsets per mapper. The*
>
> >>* global methods look like:*
>
> >>
>
> >>*   static void SetResolveCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* while the instance methods look like:*
>
> >>
>
> >>*   void SetRelativeCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* Both signatures use two parameters which are worth mentioning. The first*
>
> >>* factor is how much to shift the zbuffer based on how quickly the z values*
>
> >>* of the surface or line changes. This may seem complicated but it addresses*
>
> >>* a simple issue.  Due to rasterization issues, surfaces and lines with sharp*
>
> >>* zvalue slopes are more prone to noise in the zvalues they produce. To*
>
> >>* combat that, we offset them by an amount that is based on their z slope. If*
>
> >>* the surface is perpendicular to the view direction the factor is*
>
> >>* irrelevant, but the more the surface is at a sharp angle to the view*
>
> >>* direction, the more the factor comes into play. A value of 1.0 to 2.0 is*
>
> >>* fairly typical for the factor. The second parameter is the units, a*
>
> >>* constant offset to the zbuffer. It is currently specified conservatively in*
>
> >>* terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is*
>
> >>* a good place to start. For rendering points we do not have a slope so those*
>
> >>* methods only take the units argument.*
>
> >>
>
> >>* I have changed the global defaults so that surfaces are offset at*
>
> >>* 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new*
>
> >>* test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top*
>
> >>* of lines on top of a surface while rendering the points first and the*
>
> >>* surface last (the opposite order of their visibility).*
>
> >>
>
> >>* Thanks*
>
> >>* Ken*
>
>
>
>
>
> On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> Hi --
>
> How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology
> methods?  I can't find an explanation for 'factor' and 'units'.
>
> The attached screenshot shows a surface representation of a grid of
> rectangular voxels and a wire-frame grid of tetrahedra.  Four of the
> tetrahedral elements are also drawn with a surface representation in red
> and are supposed to obscure the voxels, but a mix of tex and voxel is drawn
> instead.  The surfaces of the voxels and the tetrahedral are coplanar.
> They don't share nodes and edges, but the points on the x=0 face all have
> x=0 exactly.  Is the coincident topology resolution machinery expected to
> work in this case?
>
> I'm using vtk 8.1.0.
>
> Thanks.
>
>       -- Steve
>
>
> _______________________________________________
> Powered by www.kitware.com
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>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com%2Fopensource%2Fopensource.html&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=h7DBgY2pmRRUZD6LrmGpIHO1oIOADRTuXF3XffiY%2Fgk%3D&reserved=0>
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.vtk.org%2FWiki%2FVTK_FAQ&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=LbMs8SnnejFm%2BgoK7jbU7Q32nAXIUq6tYfeL1%2FrSVhU%3D&reserved=0>
>
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> Follow this link to subscribe/unsubscribe:
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> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fvtk.org%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=Cigk%2F94r%2BYZdT6qteN4lhfgTn2SnkHc5nqXvzI3pREc%3D&reserved=0>
>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+%0D+Clifton+Park+NY+12065&entry=gmail&source=g>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
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From juch at zhaw.ch  Thu Jan 11 17:17:07 2018
From: juch at zhaw.ch (normanius)
Date: Thu, 11 Jan 2018 15:17:07 -0700 (MST)
Subject: [vtkusers] VTK with python wrapping
Message-ID: <1515709027552-0.post@n5.nabble.com>

Dear allI build VTK 8.1.0 from source with python support enabled. Everything
works fine as long as I build and install either for python 2.7 or python
3.5 separately. Here is the build instructions I use for building VTK on
Mac: If I use different installation targets  and , I can import vtk at the
following locations without any problems:However if I set
VTK_INSTALL_DIR_PY2 equal to $VTK_INSTALL_DIR_PY3, I will get an error for
the version that was installed second. I cannot follow why this problem
occurs at all, because the installed wrapper binaries (for instance
libvtkRenderingCorePython27D-8.1.dylib and
libvtkRenderingCorePython35D-8.1.dylib), are separate from each other. And
also otool (on Mac) indicates that binaries actually point to the right
parts. Also, I removed vtk otherwise from the system, so there is not a
third version that interferes with the installation...Do you have an idea
where the problem comes from?The error message by the way looks like this
for me:Many thanks for any hints on this!



--
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From david.gobbi at gmail.com  Thu Jan 11 17:49:04 2018
From: david.gobbi at gmail.com (David Gobbi)
Date: Thu, 11 Jan 2018 15:49:04 -0700
Subject: [vtkusers] VTK with python wrapping
In-Reply-To: <1515709027552-0.post@n5.nabble.com>
References: <1515709027552-0.post@n5.nabble.com>
Message-ID: <CANwS1=FthVbfWCX6+o9SWCyhmyehF-JTzREg4BjwZoZzwx=0BQ@mail.gmail.com>

Hi Normanius,

You will have to turn off the following C++ VTK modules, since they use the
Python C API but don't have the Python version number as part of their
library name:
  FiltersPython
  MPI4Py
  RenderingMatplotlib

This should get you a bit further along.

 - David


On Thu, Jan 11, 2018 at 3:17 PM, normanius <juch at zhaw.ch> wrote:

> Dear all I build VTK 8.1.0 from source with python support enabled.
> Everything works fine as long as I build and install either for python 2.7
> or python 3.5 separately. Here is the build instructions I use for building
> VTK on Mac:
>
> VTK_INSTALL_DIR="/opt/dev/versions/vtk/vtk-8.1.0-qt5-shared"
> mkdir build-python3.5
> cd build-python3.5
> cmake -G Ninja .. -DCMAKE_BUILD_TYPE=Release \
>                   -DVTK_WRAP_PYTHON=ON \
>                   -DBUILD_EXAMPLES=OFF \
>                   -DBUILD_SHARED_LIBS=ON \
>                   -DBUILD_TESTING=OFF \
>                   -DCMAKE_INSTALL_PREFIX="$VTK_INSTALL_DIR" \
>                   -DCMAKE_MACOSX_RPATH=ON \
>                   -DCMAKE_INSTALL_RPATH="$VTK_INSTALL_DIR/lib" \
>                   -DVTK_PYTHON_VERSION=3 \
>                   -DPYTHON_EXECUTABLE="/Library/Frameworks/Python.framework/Versions/3.5/bin/python3" \
>                   -DPYTHON_INCLUDE_DIR="/Library/Frameworks/Python.framework/Versions/3.5/include/python3.5m/" \
>                   -DPYTHON_LIBRARY="/Library/Frameworks/Python.framework/Versions/3.5/lib/libpython3.5.dylib" \
>                   -DVTK_Group_Qt=ON \
>                   -DVTK_QT_VERSION=5 \
>                   -DCMAKE_PREFIX_PATH="$QT_DIR/.."
> ninja
> ninja install
>
> mkdir build-python2.7
> cd build-python2.7
> # Same installation target!
> VTK_INSTALL_DIR="/opt/dev/versions/vtk/vtk-8.1.0-qt5-shared"
> cmake -G Ninja .. -DCMAKE_BUILD_TYPE=Release \
>                   -DVTK_WRAP_PYTHON=ON \
>                   -DBUILD_EXAMPLES=OFF \
>                   -DBUILD_SHARED_LIBS=ON \
>                   -DBUILD_TESTING=OFF \
>                   -DCMAKE_INSTALL_PREFIX="$VTK_INSTALL_DIR" \
>                   -DCMAKE_MACOSX_RPATH=ON \
>                   -DCMAKE_INSTALL_RPATH="$VTK_INSTALL_DIR/lib" \
>                   -DVTK_PYTHON_VERSION=2 \
>                   -DPYTHON_EXECUTABLE="/Library/Frameworks/Python.framework/Versions/2.7/bin/python2" \
>                   -DPYTHON_INCLUDE_DIR="/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/" \
>                   -DPYTHON_LIBRARY="/Library/Frameworks/Python.framework/Versions/2.7/lib/libpython2.7.dylib" \
>                   -DVTK_Group_Qt=ON \
>                   -DVTK_QT_VERSION=5 \
>                   -DCMAKE_PREFIX_PATH="$QT_DIR/.."
>
> If I use different installation targets
>
> VTK_INSTALL_DIR_PY2
>
> and
>
> VTK_INSTALL_DIR_PY3
>
> , I can import vtk at the following locations without any problems:
>
> cd $VTK_INSTALL_DIR_PY2/lib/python2.7/site-packages; python -c "import vtk"  # No error
> cd $VTK_INSTALL_DIR_PY3/lib/python3.5/site-packages; python -c "import vtk"  # No error
>
> However if I set VTK_INSTALL_DIR_PY2 equal to $VTK_INSTALL_DIR_PY3, I will
> get an error for the version that was installed second. I cannot follow why
> this problem occurs at all, because the installed wrapper binaries (for
> instance libvtkRenderingCorePython27D-8.1.dylib and
> libvtkRenderingCorePython35D-8.1.dylib), are separate from each other.
> And also otool (on Mac) indicates that binaries actually point to the right
> parts. Also, I removed vtk otherwise from the system, so there is not a
> third version that interferes with the installation... Do you have an idea
> where the problem comes from? The error message by the way looks like this
> for me:
>
> import vtk
> ---------------------------------------------------------------------------
> ImportError                               Traceback (most recent call last)
> /opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/python3.5/site-packages/vtk/vtkFiltersPython.py in <module>()
>       4     # use relative import for installed modules
> ----> 5     from .vtkFiltersPythonPython import *
>       6 except ImportError:
>
> ImportError: dlopen(/opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/python3.5/site-packages/vtk/vtkFiltersPythonPython.so, 2): Symbol not found: __Py_ZeroStruct
>   Referenced from: /opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/libvtkWrappingPython27Core-8.1.1.dylib
>   Expected in: flat namespace
>  in /opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/libvtkWrappingPython27Core-8.1.1.dylib
>
> During handling of the above exception, another exception occurred:
>
> ImportError                               Traceback (most recent call last)
> <ipython-input-1-b7e11aadda62> in <module>()
> ----> 1 import vtk
>
> /opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/python3.5/site-packages/vtk/__init__.py in <module>()
>      48 from .vtkFiltersPoints import *
>      49 from .vtkFiltersProgrammable import *
> ---> 50 from .vtkFiltersPython import *
>      51 from .vtkFiltersSMP import *
>      52 from .vtkFiltersSelection import *
>
> /opt/dev/versions/vtk/vtk-8.1.0-qt5-shared/lib/python3.5/site-packages/vtk/vtkFiltersPython.py in <module>()
>       7     # during build and testing, the modules will be elsewhere,
>       8     # e.g. in lib directory or Release/Debug config directories
> ----> 9     from vtkFiltersPythonPython import *
>
> ImportError: No module named 'vtkFiltersPythonPython'
>
> Many thanks for any hints on this!
>
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From juch at zhaw.ch  Thu Jan 11 18:51:02 2018
From: juch at zhaw.ch (normanius)
Date: Thu, 11 Jan 2018 16:51:02 -0700 (MST)
Subject: [vtkusers] VTK with python wrapping
In-Reply-To: <CANwS1=FthVbfWCX6+o9SWCyhmyehF-JTzREg4BjwZoZzwx=0BQ@mail.gmail.com>
References: <1515709027552-0.post@n5.nabble.com>
 <CANwS1=FthVbfWCX6+o9SWCyhmyehF-JTzREg4BjwZoZzwx=0BQ@mail.gmail.com>
Message-ID: <1515714662217-0.post@n5.nabble.com>

Aaah, this could be the reason! :) Thanks for the quick reply.

Can I disable the FiltersPython module also within the CMake interface? Or
do I have to edit CMake source files? I was not able to figure it out.

The other modules were the following, I guess.
Module_vtkmpi4py
Module_vtkRenderingMatplotlib




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From david.gobbi at gmail.com  Thu Jan 11 19:03:07 2018
From: david.gobbi at gmail.com (David Gobbi)
Date: Thu, 11 Jan 2018 17:03:07 -0700
Subject: [vtkusers] VTK with python wrapping
In-Reply-To: <1515714662217-0.post@n5.nabble.com>
References: <1515709027552-0.post@n5.nabble.com>
 <CANwS1=FthVbfWCX6+o9SWCyhmyehF-JTzREg4BjwZoZzwx=0BQ@mail.gmail.com>
 <1515714662217-0.post@n5.nabble.com>
Message-ID: <CANwS1=GT2CDtpoeHZ+_XGJnBQU=Mghn_V_BNckskDU4CdRiRuw@mail.gmail.com>

Hmm, for some reason cmake doesn't provide an option to disable
FiltersPython.  Hopefully someone reading this will know why.

If you delete Filters/Python/module.cmake from the source code, the module
will not be built.

I meant Module_vtkParallelMPI4Py (and Module_vtkRenderingMatplotlib)

 - David


On Thu, Jan 11, 2018 at 4:51 PM, normanius <juch at zhaw.ch> wrote:

> Aaah, this could be the reason! :) Thanks for the quick reply.
>
> Can I disable the FiltersPython module also within the CMake interface? Or
> do I have to edit CMake source files? I was not able to figure it out.
>
> The other modules were the following, I guess.
> Module_vtkmpi4py
> Module_vtkRenderingMatplotlib
>
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From chris.marsh at usask.ca  Thu Jan 11 19:40:52 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Thu, 11 Jan 2018 18:40:52 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <20180111192937.GA11091@megas.kitware.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
Message-ID: <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>

Looks like something is setting
PROJ4_INCLUDE_DIR
PROJ4_LIBRARY
to the system's proj4. I use a custom findproj4 that only looks where I
tell it.

then I see that
LIB_FILES:INTERNAL
contains vtkproj4
LIB_FILES just holds all my 3rd party libraries I need to link against.

Chris Marsh
PhD Candidate
chrismarsh.ca

121 Research Drive
University of Saskatchewan

On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com> wrote:

> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
> > Thanks for the details. This doesn't seem to be working for me though.
> I've
> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as
> well
> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however neither
> > works. I still see the vtklibproj4 in the output of ldd.
>
> CMake should be getting the flag. If you do:
>
>     grep -i proj4 CMakeCache.txt
>
> do any variables stand out as potentially being set to use the internal
> one?
>
> --Ben
>
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From juch at zhaw.ch  Thu Jan 11 20:43:14 2018
From: juch at zhaw.ch (normanius)
Date: Thu, 11 Jan 2018 18:43:14 -0700 (MST)
Subject: [vtkusers] VTK with python wrapping
In-Reply-To: <CANwS1=GT2CDtpoeHZ+_XGJnBQU=Mghn_V_BNckskDU4CdRiRuw@mail.gmail.com>
References: <1515709027552-0.post@n5.nabble.com>
 <CANwS1=FthVbfWCX6+o9SWCyhmyehF-JTzREg4BjwZoZzwx=0BQ@mail.gmail.com>
 <1515714662217-0.post@n5.nabble.com>
 <CANwS1=GT2CDtpoeHZ+_XGJnBQU=Mghn_V_BNckskDU4CdRiRuw@mail.gmail.com>
Message-ID: <1515721394551-0.post@n5.nabble.com>

Thanks again for the note. I'll maybe try this. I also found your issue on
gitlab: https://gitlab.kitware.com/vtk/vtk/issues/17062 , so you guys are
aware of the problem as well.

I just figured out that my PyQt5 and Qt/qmake versions do not match for
Python2 and Python3 - so I have more hassles to solve first :::(







--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From powerhak at naver.com  Fri Jan 12 03:10:05 2018
From: powerhak at naver.com (Aleph)
Date: Fri, 12 Jan 2018 01:10:05 -0700 (MST)
Subject: [vtkusers] Mesh Copy - Boolean Operation
Message-ID: <1515744605741-0.post@n5.nabble.com>

Hi,

Is there any way to duplicate boolean operation on the same mesh?

1. Do BooleanOperating(difference) on a mesh

2. Do BooleanOperating(Union) again next to the 1's position (the same mesh
file)

when i did it, the first one was disappeared(difference boolean).

Anybody knows how to do it?

Cheers
Aleph





--
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From majid.msadeghi at yahoo.com  Fri Jan 12 03:38:52 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Fri, 12 Jan 2018 08:38:52 +0000 (UTC)
Subject: [vtkusers] Mesh Copy - Boolean Operation
In-Reply-To: <1515744605741-0.post@n5.nabble.com>
References: <1515744605741-0.post@n5.nabble.com>
Message-ID: <895445565.1717305.1515746332163@mail.yahoo.com>

I am not sure what you want to do, but you can always save the result of the first boolean operation in a new polydata, and then perform the second boolean on the result of the first boolean operation.


 

    On Friday, January 12, 2018, 10:10:21 AM GMT+2, Aleph <powerhak at naver.com> wrote:  
 
 Hi,

Is there any way to duplicate boolean operation on the same mesh?

1. Do BooleanOperating(difference) on a mesh

2. Do BooleanOperating(Union) again next to the 1's position (the same mesh
file)

when i did it, the first one was disappeared(difference boolean).

Anybody knows how to do it?

Cheers
Aleph





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
_______________________________________________
Powered by www.kitware.com

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

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From 278124177 at qq.com  Fri Jan 12 06:55:29 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Fri, 12 Jan 2018 19:55:29 +0800
Subject: [vtkusers] streamline
Message-ID: <tencent_1897550CF0B082BD45DA766A821311C85A09@qq.com>

i have a .vtk file and display it with vtkpolydatamapper, how can i display this file with streamline?
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From jellby at yahoo.com  Fri Jan 12 07:45:40 2018
From: jellby at yahoo.com (=?UTF-8?Q?Ignacio_Fern=c3=a1ndez_Galv=c3=a1n?=)
Date: Fri, 12 Jan 2018 13:45:40 +0100
Subject: [vtkusers] Depth peeling and Qt
Message-ID: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>

Hi all,

I'm trying to get depth peeling and Qt interface to work together with 
VTK 6.2.0 (Ubuntu 16.04) and python, and I'm not having much success.

Depth peeling with "plain" VTK works fine 
(http://vtk.1045678.n5.nabble.com/Enable-depth-peeling-after-initialization-td5746070.html), 
but then problems start

I can't try PyQt4 because "import vtk" crashes (see 
https://gitlab.kitware.com/vtk/vtk/issues/16009).

So I modified 
https://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt to work 
with PyQt5. I also modified QVTKRenderWindowInteractor to use PyQt5 and 
configure the RenderWindow with:

self._RenderWindow.SetMultiSamples(0)
self._RenderWindow.SetAlphaBitPlanes(1)

but (a): the sphere looks weird, like some facets being inside out and 
not being rendered, and (b): depth peeling is not enabled with the 
translucent object that works without Qt.

If I use an external (non-Qt) render window, it works fine, but then the 
event loop conflicts with Qt and I get a working VTK window and a frozen 
Qt interface.

I would appreciate some help or a working example, or even the assertion 
that it will never work.

Thanks,
Ignacio

From sankhesh.jhaveri at kitware.com  Fri Jan 12 08:48:51 2018
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Fri, 12 Jan 2018 13:48:51 +0000
Subject: [vtkusers] Depth peeling and Qt
In-Reply-To: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>
References: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>
Message-ID: <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>

Hi Ignacio,

In general, depth peeling is known to work with VTK and Qt5.
Are you using the QVTKOpenGLWidget
<https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html>?
Could you post your modifications somewhere for us to see?

Thanks,
Sankhesh
?

On Fri, Jan 12, 2018 at 7:45 AM Ignacio Fern?ndez Galv?n via vtkusers <
vtkusers at vtk.org> wrote:

> Hi all,
>
> I'm trying to get depth peeling and Qt interface to work together with
> VTK 6.2.0 (Ubuntu 16.04) and python, and I'm not having much success.
>
> Depth peeling with "plain" VTK works fine
> (
> http://vtk.1045678.n5.nabble.com/Enable-depth-peeling-after-initialization-td5746070.html
> ),
> but then problems start
>
> I can't try PyQt4 because "import vtk" crashes (see
> https://gitlab.kitware.com/vtk/vtk/issues/16009).
>
> So I modified
> https://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt to work
> with PyQt5. I also modified QVTKRenderWindowInteractor to use PyQt5 and
> configure the RenderWindow with:
>
> self._RenderWindow.SetMultiSamples(0)
> self._RenderWindow.SetAlphaBitPlanes(1)
>
> but (a): the sphere looks weird, like some facets being inside out and
> not being rendered, and (b): depth peeling is not enabled with the
> translucent object that works without Qt.
>
> If I use an external (non-Qt) render window, it works fine, but then the
> event loop conflicts with Qt and I get a working VTK window and a frozen
> Qt interface.
>
> I would appreciate some help or a working example, or even the assertion
> that it will never work.
>
> Thanks,
> Ignacio
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>


-- 
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From aashish.chaudhary at kitware.com  Fri Jan 12 09:15:54 2018
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Fri, 12 Jan 2018 14:15:54 +0000
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
Message-ID: <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>

Dan Lipsa made last changes perhaps he may have some suggestions.

- aashish

On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca> wrote:

> Looks like something is setting
> PROJ4_INCLUDE_DIR
> PROJ4_LIBRARY
> to the system's proj4. I use a custom findproj4 that only looks where I
> tell it.
>
> then I see that
> LIB_FILES:INTERNAL
> contains vtkproj4
> LIB_FILES just holds all my 3rd party libraries I need to link against.
>
> Chris Marsh
> PhD Candidate
> chrismarsh.ca
>
> 121 Research Drive
> University of Saskatchewan
>
> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com> wrote:
>
>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>> > Thanks for the details. This doesn't seem to be working for me though.
>> I've
>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as
>> well
>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>> neither
>> > works. I still see the vtklibproj4 in the output of ldd.
>>
>> CMake should be getting the flag. If you do:
>>
>>     grep -i proj4 CMakeCache.txt
>>
>> do any variables stand out as potentially being set to use the internal
>> one?
>>
>> --Ben
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From jellby at yahoo.com  Fri Jan 12 09:50:37 2018
From: jellby at yahoo.com (=?UTF-8?Q?Ignacio_Fern=c3=a1ndez_Galv=c3=a1n?=)
Date: Fri, 12 Jan 2018 15:50:37 +0100
Subject: [vtkusers] Depth peeling and Qt
In-Reply-To: <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>
References: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>
 <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>
Message-ID: <128ad318-98cc-7f1b-1493-4959cd3e6976@yahoo.com>

On 12/01/18, at 14:48, Sankhesh Jhaveri wrote:
> 
> In general, depth peeling is known to work with VTK and Qt5.
> Are you using the QVTKOpenGLWidget 
> <https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html>?
> Could you post your modifications somewhere for us to see?
> 

I'm not using QVTKOpenGLWidget directly, I'm just using 
QVTKRenderWindowInteractor, as in 
https://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt

My modified EmbedPyQt.py:

#==============================================
#!/usr/bin/env python

import sys
import vtk
from PyQt5.QtWidgets import QApplication, QFrame, QPushButton, 
QVBoxLayout, QMainWindow, QFrame
from QVTKRenderWindowInteractor_5 import QVTKRenderWindowInteractor

class MainWindow(QMainWindow):

     def __init__(self, parent = None):
         QMainWindow.__init__(self, parent)

         self.frame = QFrame()

         self.vl = QVBoxLayout()
         self.vtkWidget = QVTKRenderWindowInteractor(self.frame)
         self.vl.addWidget(self.vtkWidget)

         self.ren = vtk.vtkRenderer()
         self.ren.UseDepthPeelingOn()
         self.ren.SetOcclusionRatio(0.01)
         self.ren.SetMaximumNumberOfPeels(20)
         self.vtkWidget.GetRenderWindow().AddRenderer(self.ren)
         self.iren = self.vtkWidget.GetRenderWindow().GetInteractor()

         # Create source
         source = vtk.vtkSphereSource()
         source.SetCenter(0, 0, 0)
         source.SetRadius(5.0)

         # Create a mapper
         mapper = vtk.vtkPolyDataMapper()
         mapper.SetInputConnection(source.GetOutputPort())

         # Create an actor
         actor = vtk.vtkActor()
         actor.SetMapper(mapper)
         actor.GetProperty().SetOpacity(0.5)

         self.ren.AddActor(actor)

         self.ren.ResetCamera()

         self.frame.setLayout(self.vl)
         self.setCentralWidget(self.frame)

         self.show()
         self.iren.Initialize()


if __name__ == "__main__":

     app = QApplication(sys.argv)

     window = MainWindow()

     print window.ren.GetLastRenderingUsedDepthPeeling()
     sys.exit(app.exec_())
#==============================================

and QVTKRenderWindowInteractor_5.py is the same as 
https://gitlab.kitware.com/vtk/vtk/blob/1cea85a8d40114374c329c8d26d92c4356df678a/Wrapping/Python/vtk/qt5/QVTKRenderWindowInteractor.py 
with just a couple of changes:

$ diff -c QVTKRenderWindowInteractor.py QVTKRenderWindowInteractor_5.py
*** QVTKRenderWindowInteractor.py       2018-01-12 14:59:18.194879513 +0100
--- QVTKRenderWindowInteractor_5.py     2018-01-12 15:32:09.765069627 +0100
***************
*** 164,169 ****
--- 164,171 ----
               self._RenderWindow = rw
           else:
               self._RenderWindow = vtk.vtkRenderWindow()
+             self._RenderWindow.SetMultiSamples(0)
+             self._RenderWindow.SetAlphaBitPlanes(1)

           WId = self.winId()

***************
*** 366,372 ****
           self._Iren.KeyReleaseEvent()

       def wheelEvent(self, ev):
!         if ev.delta() >= 0:
               self._Iren.MouseWheelForwardEvent()
           else:
               self._Iren.MouseWheelBackwardEvent()
--- 368,374 ----
           self._Iren.KeyReleaseEvent()

       def wheelEvent(self, ev):
!         if ev.angleDelta().y() >= 0:
               self._Iren.MouseWheelForwardEvent()
           else:
               self._Iren.MouseWheelBackwardEvent()

From shawn.waldon at kitware.com  Fri Jan 12 09:54:41 2018
From: shawn.waldon at kitware.com (Shawn Waldon)
Date: Fri, 12 Jan 2018 09:54:41 -0500
Subject: [vtkusers] Depth peeling and Qt
In-Reply-To: <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>
References: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>
 <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>
Message-ID: <CALSpCT2h7afxXYaNsvR0FCRpE27BrsDzgTYPv4N8MnBVxnNnaw@mail.gmail.com>

Hi Ignacio,

IIRC, VTK 6.2 was before VTK had real support for Qt5 and there were still
some major issues with VTK + Qt5 (as you have noticed).  You will either
have to backport changes or update to a newer VTK.  I think VTK 8.1 may be
the first release since QVTKOpenGLWidget (full Qt5 support) was added,
although it may have been in 8.0.  You could try backporting
QVTKOpenGLWidget, but I'm not sure how difficult that will be (it requires
Qt 5.5 or 5.6 minimum I think).  Also, QVTKOpenGLWidget only works with the
newer "OpenGL2" rendering backend which was still experimental in VTK 6.2.
So you may have trouble with that too.  Your easiest approach would
probably be to use a newer VTK.

HTH,
Shawn

On Fri, Jan 12, 2018 at 8:48 AM, Sankhesh Jhaveri <
sankhesh.jhaveri at kitware.com> wrote:

> Hi Ignacio,
>
> In general, depth peeling is known to work with VTK and Qt5.
> Are you using the QVTKOpenGLWidget
> <https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html>?
> Could you post your modifications somewhere for us to see?
>
> Thanks,
> Sankhesh
> ?
>
> On Fri, Jan 12, 2018 at 7:45 AM Ignacio Fern?ndez Galv?n via vtkusers <
> vtkusers at vtk.org> wrote:
>
>> Hi all,
>>
>> I'm trying to get depth peeling and Qt interface to work together with
>> VTK 6.2.0 (Ubuntu 16.04) and python, and I'm not having much success.
>>
>> Depth peeling with "plain" VTK works fine
>> (http://vtk.1045678.n5.nabble.com/Enable-depth-peeling-
>> after-initialization-td5746070.html),
>> but then problems start
>>
>> I can't try PyQt4 because "import vtk" crashes (see
>> https://gitlab.kitware.com/vtk/vtk/issues/16009).
>>
>> So I modified
>> https://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt to work
>> with PyQt5. I also modified QVTKRenderWindowInteractor to use PyQt5 and
>> configure the RenderWindow with:
>>
>> self._RenderWindow.SetMultiSamples(0)
>> self._RenderWindow.SetAlphaBitPlanes(1)
>>
>> but (a): the sphere looks weird, like some facets being inside out and
>> not being rendered, and (b): depth peeling is not enabled with the
>> translucent object that works without Qt.
>>
>> If I use an external (non-Qt) render window, it works fine, but then the
>> event loop conflicts with Qt and I get a working VTK window and a frozen
>> Qt interface.
>>
>> I would appreciate some help or a working example, or even the assertion
>> that it will never work.
>>
>> Thanks,
>> Ignacio
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/
>> opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>
>
> --
> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
> <http://www.kitware.com/> | (518) 881-4417
> ?
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
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From dan.lipsa at kitware.com  Fri Jan 12 10:35:15 2018
From: dan.lipsa at kitware.com (Dan Lipsa)
Date: Fri, 12 Jan 2018 10:35:15 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
Message-ID: <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>

Chris,

1. Going back to the beginning of the thread, I don't understand why
vtklibproj conflicts with another proj, given that we mangle all names. Can
you send us the errors.

2. If you do want to build with the system proj4

Can you send up the output of:
cat CMakeCache.txt | grep LIBPROJ

This is what I have:
LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
LIBPROJ_BINDIR:PATH=bin
LIBPROJ_DATADIR:PATH=share/proj
LIBPROJ_DOCDIR:PATH=doc/proj
LIBPROJ_INCLUDEDIR:PATH=include
LIBPROJ_LIBDIR:PATH=lib
LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
LIBPROJ_USE_THREAD:BOOL=ON
//Use system-installed LIBPROJ4
VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
//ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ4_LIBRARIES
LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
//MODIFIED property for variable: LIBPROJ4_LIBRARIES
LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
//ADVANCED property for variable: LIBPROJ_BINDIR
LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_DATADIR
LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_DOCDIR
LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_INCLUDEDIR
LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_LIBDIR
LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_M_LIB
LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
//ADVANCED property for variable: LIBPROJ_USE_THREAD
LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
//ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
//MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON


Make sure
LIBPROJ4_INCLUDE_DIR
LIBPROJ4_LIBRARIES
VTK_USE_SYSTEM_LIBPROJ4
have the correct values.

All those are cmake variables, you change them using ccmake or cmake-gui.
After that you call:

cmake .
make



On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
aashish.chaudhary at kitware.com> wrote:

> Dan Lipsa made last changes perhaps he may have some suggestions.
>
> - aashish
>
> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca> wrote:
>
>> Looks like something is setting
>> PROJ4_INCLUDE_DIR
>> PROJ4_LIBRARY
>> to the system's proj4. I use a custom findproj4 that only looks where I
>> tell it.
>>
>> then I see that
>> LIB_FILES:INTERNAL
>> contains vtkproj4
>> LIB_FILES just holds all my 3rd party libraries I need to link against.
>>
>> Chris Marsh
>> PhD Candidate
>> chrismarsh.ca
>>
>> 121 Research Drive
>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>> University of Saskatchewan
>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>
>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com> wrote:
>>
>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>> > Thanks for the details. This doesn't seem to be working for me though.
>>> I've
>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as
>>> well
>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>> neither
>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>
>>> CMake should be getting the flag. If you do:
>>>
>>>     grep -i proj4 CMakeCache.txt
>>>
>>> do any variables stand out as potentially being set to use the internal
>>> one?
>>>
>>> --Ben
>>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/
>> opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>
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From sankhesh.jhaveri at kitware.com  Fri Jan 12 10:46:19 2018
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Fri, 12 Jan 2018 15:46:19 +0000
Subject: [vtkusers] Depth peeling and Qt
In-Reply-To: <CALSpCT2h7afxXYaNsvR0FCRpE27BrsDzgTYPv4N8MnBVxnNnaw@mail.gmail.com>
References: <00df27b4-ea8b-f1d4-241a-4b8969bcbdcc@yahoo.com>
 <CAEcL5t5Ho5O5dLNYfqUQ_sf3wT_JqU-_jKjxho7K2tx6VzDq6A@mail.gmail.com>
 <CALSpCT2h7afxXYaNsvR0FCRpE27BrsDzgTYPv4N8MnBVxnNnaw@mail.gmail.com>
Message-ID: <CAEcL5t7Mrw_fxf=ZxOJPHZNiEuUPxCX4kzjRq-a51mrtEghZgQ@mail.gmail.com>

Hi Ignacio,

I totally overlooked that you are using VTK 6.2.
As Shawn pointed out, VTK gained better Qt5 support with QVTKOpenGLWidget
which was added in 8.0.

Hth,
Sankhesh
?

On Fri, Jan 12, 2018 at 9:55 AM Shawn Waldon <shawn.waldon at kitware.com>
wrote:

> Hi Ignacio,
>
> IIRC, VTK 6.2 was before VTK had real support for Qt5 and there were still
> some major issues with VTK + Qt5 (as you have noticed).  You will either
> have to backport changes or update to a newer VTK.  I think VTK 8.1 may be
> the first release since QVTKOpenGLWidget (full Qt5 support) was added,
> although it may have been in 8.0.  You could try backporting
> QVTKOpenGLWidget, but I'm not sure how difficult that will be (it requires
> Qt 5.5 or 5.6 minimum I think).  Also, QVTKOpenGLWidget only works with the
> newer "OpenGL2" rendering backend which was still experimental in VTK 6.2.
> So you may have trouble with that too.  Your easiest approach would
> probably be to use a newer VTK.
>
> HTH,
> Shawn
>
> On Fri, Jan 12, 2018 at 8:48 AM, Sankhesh Jhaveri <
> sankhesh.jhaveri at kitware.com> wrote:
>
>> Hi Ignacio,
>>
>> In general, depth peeling is known to work with VTK and Qt5.
>> Are you using the QVTKOpenGLWidget
>> <https://www.vtk.org/doc/nightly/html/classQVTKOpenGLWidget.html>?
>> Could you post your modifications somewhere for us to see?
>>
>> Thanks,
>> Sankhesh
>> ?
>>
>> On Fri, Jan 12, 2018 at 7:45 AM Ignacio Fern?ndez Galv?n via vtkusers <
>> vtkusers at vtk.org> wrote:
>>
>>> Hi all,
>>>
>>> I'm trying to get depth peeling and Qt interface to work together with
>>> VTK 6.2.0 (Ubuntu 16.04) and python, and I'm not having much success.
>>>
>>> Depth peeling with "plain" VTK works fine
>>> (
>>> http://vtk.1045678.n5.nabble.com/Enable-depth-peeling-after-initialization-td5746070.html
>>> ),
>>> but then problems start
>>>
>>> I can't try PyQt4 because "import vtk" crashes (see
>>> https://gitlab.kitware.com/vtk/vtk/issues/16009).
>>>
>>> So I modified
>>> https://www.vtk.org/Wiki/VTK/Examples/Python/Widgets/EmbedPyQt to work
>>> with PyQt5. I also modified QVTKRenderWindowInteractor to use PyQt5 and
>>> configure the RenderWindow with:
>>>
>>> self._RenderWindow.SetMultiSamples(0)
>>> self._RenderWindow.SetAlphaBitPlanes(1)
>>>
>>> but (a): the sphere looks weird, like some facets being inside out and
>>> not being rendered, and (b): depth peeling is not enabled with the
>>> translucent object that works without Qt.
>>>
>>> If I use an external (non-Qt) render window, it works fine, but then the
>>> event loop conflicts with Qt and I get a working VTK window and a frozen
>>> Qt interface.
>>>
>>> I would appreciate some help or a working example, or even the assertion
>>> that it will never work.
>>>
>>> Thanks,
>>> Ignacio
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>>
>>
>>
>> --
>> Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
>> <http://www.kitware.com/> | (518) 881-4417
>> ?
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>>
>

-- 
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From chris.marsh at usask.ca  Fri Jan 12 15:32:51 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Fri, 12 Jan 2018 14:32:51 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
Message-ID: <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>

Hi Dan,

I'm trying to figure out the issue I detail here:
http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-PROJ-4-with-quot-
quot-td5338323.html
http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-
Failed-to-initialize-PROJ-4-with-quot-quot-td5338107.html

Effectively the error is that GDAL seems to call the incorrect
library/something happens, and the projection fails.

In an effort to resolve this I was looking at my binary via LDD and found
$ ldd ~/build-release/bin/Release/CHM | grep proj4
        libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/
lib/VTK/lib/libvtkproj4-8.0.so.1 (0x00002b517aa36000)
        libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
(0x00002b51944d2000)

If I use patchelf (https://github.com/NixOS/patchelf) to strip
libvtkproj4-8.0.so.1 from my binary, my code runs without the error.

I don't quite understand why I don't have this problem on other machines
though. Looking at other machines I compile on (using a custom VTK build) I
don't see any reference to the VTK libproj4 via ldd.

Thus I attributed the error to vtkproj4 inclusion. However if you mangle
names, then I agree I don't understand why this is happening.

Cheers
Chris


On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> Chris,
>
> 1. Going back to the beginning of the thread, I don't understand why
> vtklibproj conflicts with another proj, given that we mangle all names. Can
> you send us the errors.
>
> 2. If you do want to build with the system proj4
>
> Can you send up the output of:
> cat CMakeCache.txt | grep LIBPROJ
>
> This is what I have:
> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
> LIBPROJ_BINDIR:PATH=bin
> LIBPROJ_DATADIR:PATH=share/proj
> LIBPROJ_DOCDIR:PATH=doc/proj
> LIBPROJ_INCLUDEDIR:PATH=include
> LIBPROJ_LIBDIR:PATH=lib
> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
> LIBPROJ_USE_THREAD:BOOL=ON
> //Use system-installed LIBPROJ4
> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
> //ADVANCED property for variable: LIBPROJ_BINDIR
> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_DATADIR
> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_DOCDIR
> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_LIBDIR
> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_M_LIB
> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: LIBPROJ_USE_THREAD
> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>
>
> Make sure
> LIBPROJ4_INCLUDE_DIR
> LIBPROJ4_LIBRARIES
> VTK_USE_SYSTEM_LIBPROJ4
> have the correct values.
>
> All those are cmake variables, you change them using ccmake or cmake-gui.
> After that you call:
>
> cmake .
> make
>
>
>
> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
> aashish.chaudhary at kitware.com> wrote:
>
>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>
>> - aashish
>>
>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca> wrote:
>>
>>> Looks like something is setting
>>> PROJ4_INCLUDE_DIR
>>> PROJ4_LIBRARY
>>> to the system's proj4. I use a custom findproj4 that only looks where I
>>> tell it.
>>>
>>> then I see that
>>> LIB_FILES:INTERNAL
>>> contains vtkproj4
>>> LIB_FILES just holds all my 3rd party libraries I need to link against.
>>>
>>> Chris Marsh
>>> PhD Candidate
>>> chrismarsh.ca
>>>
>>> 121 Research Drive
>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>> University of Saskatchewan
>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>
>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>> wrote:
>>>
>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>> > Thanks for the details. This doesn't seem to be working for me
>>>> though. I've
>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line as
>>>> well
>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>>> neither
>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>
>>>> CMake should be getting the flag. If you do:
>>>>
>>>>     grep -i proj4 CMakeCache.txt
>>>>
>>>> do any variables stand out as potentially being set to use the internal
>>>> one?
>>>>
>>>> --Ben
>>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>>
>>
>
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From alican1812 at hotmail.com  Sat Jan 13 06:08:58 2018
From: alican1812 at hotmail.com (alican)
Date: Sat, 13 Jan 2018 04:08:58 -0700 (MST)
Subject: [vtkusers] Nonlinear scaling of vtkPolyData
Message-ID: <1515841738135-0.post@n5.nabble.com>

Hello,
I need to apply a nolinear scaling to my polydata.
Like in a *Fig. B* ,instead of Fig.A 
(Sorry, I am not that good at drawing, but let's presume that these figures
are cylinders and a cone)
<http://vtk.1045678.n5.nabble.com/file/t341997/Untitled1.png> 


What is the best VTK way to achieve that?

*What I have tried:*
 I tried to break my data into strips using vtkStripper and then to apply a
different scale value to each strip, and then apply a new points' values to
an original polydata.

It was not smooth and very slow. 
If it matters, my polydata  will always have between 10,000 to 20,000
vertices, it will never be larger.
Thanks,
AC



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From jackkykokoko at gmail.com  Mon Jan 15 01:23:47 2018
From: jackkykokoko at gmail.com (jackyko1991)
Date: Sun, 14 Jan 2018 23:23:47 -0700 (MST)
Subject: [vtkusers] process.h conflict with windows header
Message-ID: <1515997427033-0.post@n5.nabble.com>

Hi I am trying to write a multithreaded program with boost::asio

the boost::asio library is calling process.h to find _beginthreadex function
from the header file, this is ok when using vtk 7 or older versions.

When I upgrade to vtk 8, the process.h direct to vtk process.h instead of
windows own c++ header, this confuse the boost library and cannot find the
suitable built in function.

Is it a bug in the latest release of vtk?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ben.boeckel at kitware.com  Mon Jan 15 09:32:19 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Mon, 15 Jan 2018 09:32:19 -0500
Subject: [vtkusers] process.h conflict with windows header
In-Reply-To: <1515997427033-0.post@n5.nabble.com>
References: <1515997427033-0.post@n5.nabble.com>
Message-ID: <20180115143219.GA2269@megas.kitware.com>

On Sun, Jan 14, 2018 at 23:23:47 -0700, jackyko1991 wrote:
> Hi I am trying to write a multithreaded program with boost::asio
> 
> the boost::asio library is calling process.h to find _beginthreadex function
> from the header file, this is ok when using vtk 7 or older versions.
> 
> When I upgrade to vtk 8, the process.h direct to vtk process.h instead of
> windows own c++ header, this confuse the boost library and cannot find the
> suitable built in function.

What header is this? VTK prefixes all of its include files with `vtk`.
I'm not seeing one by that name in the source tree at least.

--Ben

From jackkykokoko at gmail.com  Mon Jan 15 09:40:08 2018
From: jackkykokoko at gmail.com (jackyko1991)
Date: Mon, 15 Jan 2018 07:40:08 -0700 (MST)
Subject: [vtkusers] process.h conflict with windows header
In-Reply-To: <20180115143219.GA2269@megas.kitware.com>
References: <1515997427033-0.post@n5.nabble.com>
 <20180115143219.GA2269@megas.kitware.com>
Message-ID: <1516027208892-0.post@n5.nabble.com>

boost::asio includes <process.h> in its header file

when i use vtk 7 or older, this header point to the windows own header file

however in vtk8, it points to Utilities/KWSys/vtksys/Process.h.in



--
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From dan.lipsa at kitware.com  Mon Jan 15 11:03:30 2018
From: dan.lipsa at kitware.com (Dan Lipsa)
Date: Mon, 15 Jan 2018 11:03:30 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
 <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
Message-ID: <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>

Hi Chris,
Is VTK in the call stack for the errors you described? If not, I think it
is not involved in the errors.

vtkproj should not interfere with proj, but you can make VTK use the system
proj with the method described earlier.

Is the message you are getting from proj saying that the string you pass is
not valid? Maybe somebody overrides that memory?
Try run your program though valgrind and/or comment out chunks of code
trying to see who causes your error.
Hope this helps,
Dan



On Fri, Jan 12, 2018 at 3:32 PM, Chris Marsh <chris.marsh at usask.ca> wrote:

> Hi Dan,
>
> I'm trying to figure out the issue I detail here:
> http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-
> PROJ-4-with-quot-quot-td5338323.html
> http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-Failed-
> to-initialize-PROJ-4-with-quot-quot-td5338107.html
>
> Effectively the error is that GDAL seems to call the incorrect
> library/something happens, and the projection fails.
>
> In an effort to resolve this I was looking at my binary via LDD and found
> $ ldd ~/build-release/bin/Release/CHM | grep proj4
>         libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
> (0x00002b517aa36000)
>         libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
> (0x00002b51944d2000)
>
> If I use patchelf (https://github.com/NixOS/patchelf) to strip
> libvtkproj4-8.0.so.1 from my binary, my code runs without the error.
>
> I don't quite understand why I don't have this problem on other machines
> though. Looking at other machines I compile on (using a custom VTK build) I
> don't see any reference to the VTK libproj4 via ldd.
>
> Thus I attributed the error to vtkproj4 inclusion. However if you mangle
> names, then I agree I don't understand why this is happening.
>
> Cheers
> Chris
>
>
> On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>
>> Chris,
>>
>> 1. Going back to the beginning of the thread, I don't understand why
>> vtklibproj conflicts with another proj, given that we mangle all names. Can
>> you send us the errors.
>>
>> 2. If you do want to build with the system proj4
>>
>> Can you send up the output of:
>> cat CMakeCache.txt | grep LIBPROJ
>>
>> This is what I have:
>> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
>> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
>> LIBPROJ_BINDIR:PATH=bin
>> LIBPROJ_DATADIR:PATH=share/proj
>> LIBPROJ_DOCDIR:PATH=doc/proj
>> LIBPROJ_INCLUDEDIR:PATH=include
>> LIBPROJ_LIBDIR:PATH=lib
>> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>> LIBPROJ_USE_THREAD:BOOL=ON
>> //Use system-installed LIBPROJ4
>> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
>> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
>> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
>> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
>> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
>> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
>> //ADVANCED property for variable: LIBPROJ_BINDIR
>> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_DATADIR
>> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_DOCDIR
>> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
>> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_LIBDIR
>> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_M_LIB
>> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: LIBPROJ_USE_THREAD
>> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
>> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
>> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>>
>>
>> Make sure
>> LIBPROJ4_INCLUDE_DIR
>> LIBPROJ4_LIBRARIES
>> VTK_USE_SYSTEM_LIBPROJ4
>> have the correct values.
>>
>> All those are cmake variables, you change them using ccmake or cmake-gui.
>> After that you call:
>>
>> cmake .
>> make
>>
>>
>>
>> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
>> aashish.chaudhary at kitware.com> wrote:
>>
>>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>>
>>> - aashish
>>>
>>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca>
>>> wrote:
>>>
>>>> Looks like something is setting
>>>> PROJ4_INCLUDE_DIR
>>>> PROJ4_LIBRARY
>>>> to the system's proj4. I use a custom findproj4 that only looks where I
>>>> tell it.
>>>>
>>>> then I see that
>>>> LIB_FILES:INTERNAL
>>>> contains vtkproj4
>>>> LIB_FILES just holds all my 3rd party libraries I need to link against.
>>>>
>>>> Chris Marsh
>>>> PhD Candidate
>>>> chrismarsh.ca
>>>>
>>>> 121 Research Drive
>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>> University of Saskatchewan
>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>
>>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>>> wrote:
>>>>
>>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>>> > Thanks for the details. This doesn't seem to be working for me
>>>>> though. I've
>>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line
>>>>> as well
>>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>>>> neither
>>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>>
>>>>> CMake should be getting the flag. If you do:
>>>>>
>>>>>     grep -i proj4 CMakeCache.txt
>>>>>
>>>>> do any variables stand out as potentially being set to use the internal
>>>>> one?
>>>>>
>>>>> --Ben
>>>>>
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>
>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> https://vtk.org/mailman/listinfo/vtkusers
>>>>
>>>
>>
>
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From ben.boeckel at kitware.com  Mon Jan 15 14:48:10 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Mon, 15 Jan 2018 14:48:10 -0500
Subject: [vtkusers] process.h conflict with windows header
In-Reply-To: <1516027208892-0.post@n5.nabble.com>
References: <1515997427033-0.post@n5.nabble.com>
 <20180115143219.GA2269@megas.kitware.com>
 <1516027208892-0.post@n5.nabble.com>
Message-ID: <20180115194810.GA23937@megas.kitware.com>

On Mon, Jan 15, 2018 at 07:40:08 -0700, jackyko1991 wrote:
> boost::asio includes <process.h> in its header file
> 
> when i use vtk 7 or older, this header point to the windows own header file
> 
> however in vtk8, it points to Utilities/KWSys/vtksys/Process.h.in

Ah, case insensitivity. Try installing VTK rather than using the build
tree. The headers should be put under a `vtksys` directory rather than
being available right in the VTK header directory.

--Ben

From stephan.lenz at tu-bs.de  Tue Jan 16 03:49:57 2018
From: stephan.lenz at tu-bs.de (Stephan Lenz)
Date: Tue, 16 Jan 2018 09:49:57 +0100
Subject: [vtkusers] vtkPNGWriter: Write reduced vtkUnstructuredGrid field
 data to PNG-file via vtkResampleWithDataset
Message-ID: <d9d191cb-0fea-eea5-d813-5221b42f5303@tu-bs.de>

Hello everybody,

I have problems setting up a pipeline to write data to an PNG-file.

I have a 2-D simulation on a large rectangular non-uniform grid ( 
~60.000.000 Cells ). For visualization of the results I would like to 
write PNG files (or other Imagefiles) in order to create an animation.

I am already able to write VTK-ImageData files (.vti) and make an 
animation in Paraview. Nevertheless I would prefer to generate the 
animation directly from images, as the simulation domain should fill the 
whole animation domain. With paraview fitting the simulation domain 
seamlessly in the view is not trivial.

My current pipeline is:

 ????????? // this adapter function couples my simulation datastructures 
to VTK
 ??????????? vtkSmartPointer<vtkUnstructuredGrid> grid = 
getVtkUnstructuredGrid(dataBase);

 ??????????? // generate the field data
 ??????????? vtkSmartPointer<vtkUnsignedCharArray> data = 
vtkSmartPointer<vtkUnsignedCharArray>::New();
 ??????????? data->SetNumberOfComponents( 1 );
 ??????????? data->SetName( "T" );
 ??????????? for( Idx cellIdx = 0; cellIdx < numberOfCells; cellIdx++ ){
 ??????????????? unsigned char value = getValue( cellIdx );
 ??????????????? data->InsertNextValue( Tint );
 ??????????? }
 ??????????? grid->GetCellData()->AddArray( data );

 ??????????? // define the grid for the output
 ??????????? vtkSmartPointer<vtkImageData> image = 
vtkSmartPointer<vtkImageData>::New();
 ??????????? image->SetDimensions(512+1,256+1,1);
 ??????????? image->SetSpacing( L/512, H/256, 0 );

 ??????????? // resample the field data to the coarser vtkImageData
 ??????????? vtkSmartPointer<vtkResampleWithDataSet> resample = 
vtkSmartPointer<vtkResampleWithDataSet>::New();
 ??????????? resample->SetSourceData( grid );
 ??????????? resample->SetInputData( image );

 ??????????? // write the data to PNG-file (does not work!)
 ??????????? vtkSmartPointer<vtkPNGWriter> writerPNG = 
vtkSmartPointer<vtkPNGWriter>::New();
 ??????????? writerPNG->SetFileName( ( simulationName + ".png").c_str() );
 ??????????? writerPNG->SetInputData( resample->GetOutput() );
 ??????????? writerPNG->Write();

 ??????????? // write the data to VTI-file (works!)
 ??????????? vtkSmartPointer<vtkXMLImageDataWriter> writer = 
vtkSmartPointer<vtkXMLImageDataWriter>::New();
 ??????????? writer->SetFileName( ( simulationName + "." + 
writer->GetDefaultFileExtension() ).c_str() );
 ??????????? writer->SetDataMode( vtkXMLWriter::Binary );
 ??????????? writer->SetInputData( resample->GetOutput() );
 ??????????? writer->Write();

The above code compiles and runs without errors, but I do not get any 
PNG-Files. The VTI-files are written and I can open them in Paraview, as 
usual. I tried many different things, but did not get single PNG-file 
out of this.

When I, for example, change

writerPNG->SetInputData( resample->GetOutput() );

to

writerPNG->SetInputConnection( resample->GetOutputPort() );

I get a VTK Error message, that says "PNGWriter only supports unsigned 
char and unsigned short inputs". But as far as I see it the field data 
is unsigned char and this is confirmed by Paraview, when I look into the 
VTI-files (generated with both SetInputData and SetInputConnection).

Do you see any obvious mistakes I make? How do I have to set up such a 
pipeline to get a PNG (or other image file) output. I would be glad for 
any help.

Thank you very much,

Stephan Lenz


From majid.msadeghi at yahoo.com  Tue Jan 16 04:40:53 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Tue, 16 Jan 2018 09:40:53 +0000 (UTC)
Subject: [vtkusers] InteractorStyle Subclassing
References: <169573414.1647520.1516095653470.ref@mail.yahoo.com>
Message-ID: <169573414.1647520.1516095653470@mail.yahoo.com>

Dear All,
What I am trying to do is:
Based on the position of the mouse click in the window, if no actor is clicked on, then move the camera (like InteractorStyleTrackballCamera) but if the mouse is clicked on an actor(and there are different actors in the scene), then move the actor (like InteractorStyleTrackballActor). Also limit the motion type of the actor to a specific translation or rotation.

The way I think I might be able to do it is:
 Write my own interactor style with a combination of trackballActor and trackballCamera after I check the pickposition of the mouse.
My question is:
Am I in the right path? Can I do it in a faster or better way? Is there a widget which might help me?
Thank you all.
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From dave.demarle at kitware.com  Tue Jan 16 08:36:56 2018
From: dave.demarle at kitware.com (David E DeMarle)
Date: Tue, 16 Jan 2018 08:36:56 -0500
Subject: [vtkusers] vtkPNGWriter: Write reduced vtkUnstructuredGrid
 field data to PNG-file via vtkResampleWithDataset
In-Reply-To: <d9d191cb-0fea-eea5-d813-5221b42f5303@tu-bs.de>
References: <d9d191cb-0fea-eea5-d813-5221b42f5303@tu-bs.de>
Message-ID: <CANjZAi8yXp9TLQNaKReGEU9pTdzx=gr3t8NLrTq4aRBiKavKTw@mail.gmail.com>

My guess is that the PNG writer expect three components, not a single
component array. vtkImageAppendComponents would be one way to make a three
tuple, but it would be more straightforward to do it in the array
construction with
SetNumberOfComponents(3) followed by
yourloop {
   InsertNextTuple3(Tint,Tint,Tint);
}


David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Tue, Jan 16, 2018 at 3:49 AM, Stephan Lenz <stephan.lenz at tu-bs.de> wrote:

> Hello everybody,
>
> I have problems setting up a pipeline to write data to an PNG-file.
>
> I have a 2-D simulation on a large rectangular non-uniform grid (
> ~60.000.000 Cells ). For visualization of the results I would like to write
> PNG files (or other Imagefiles) in order to create an animation.
>
> I am already able to write VTK-ImageData files (.vti) and make an
> animation in Paraview. Nevertheless I would prefer to generate the
> animation directly from images, as the simulation domain should fill the
> whole animation domain. With paraview fitting the simulation domain
> seamlessly in the view is not trivial.
>
> My current pipeline is:
>
>           // this adapter function couples my simulation datastructures to
> VTK
>             vtkSmartPointer<vtkUnstructuredGrid> grid =
> getVtkUnstructuredGrid(dataBase);
>
>             // generate the field data
>             vtkSmartPointer<vtkUnsignedCharArray> data =
> vtkSmartPointer<vtkUnsignedCharArray>::New();
>             data->SetNumberOfComponents( 1 );
>             data->SetName( "T" );
>             for( Idx cellIdx = 0; cellIdx < numberOfCells; cellIdx++ ){
>                 unsigned char value = getValue( cellIdx );
>                 data->InsertNextValue( Tint );
>             }
>             grid->GetCellData()->AddArray( data );
>
>             // define the grid for the output
>             vtkSmartPointer<vtkImageData> image =
> vtkSmartPointer<vtkImageData>::New();
>             image->SetDimensions(512+1,256+1,1);
>             image->SetSpacing( L/512, H/256, 0 );
>
>             // resample the field data to the coarser vtkImageData
>             vtkSmartPointer<vtkResampleWithDataSet> resample =
> vtkSmartPointer<vtkResampleWithDataSet>::New();
>             resample->SetSourceData( grid );
>             resample->SetInputData( image );
>
>             // write the data to PNG-file (does not work!)
>             vtkSmartPointer<vtkPNGWriter> writerPNG =
> vtkSmartPointer<vtkPNGWriter>::New();
>             writerPNG->SetFileName( ( simulationName + ".png").c_str() );
>             writerPNG->SetInputData( resample->GetOutput() );
>             writerPNG->Write();
>
>             // write the data to VTI-file (works!)
>             vtkSmartPointer<vtkXMLImageDataWriter> writer =
> vtkSmartPointer<vtkXMLImageDataWriter>::New();
>             writer->SetFileName( ( simulationName + "." +
> writer->GetDefaultFileExtension() ).c_str() );
>             writer->SetDataMode( vtkXMLWriter::Binary );
>             writer->SetInputData( resample->GetOutput() );
>             writer->Write();
>
> The above code compiles and runs without errors, but I do not get any
> PNG-Files. The VTI-files are written and I can open them in Paraview, as
> usual. I tried many different things, but did not get single PNG-file out
> of this.
>
> When I, for example, change
>
> writerPNG->SetInputData( resample->GetOutput() );
>
> to
>
> writerPNG->SetInputConnection( resample->GetOutputPort() );
>
> I get a VTK Error message, that says "PNGWriter only supports unsigned
> char and unsigned short inputs". But as far as I see it the field data is
> unsigned char and this is confirmed by Paraview, when I look into the
> VTI-files (generated with both SetInputData and SetInputConnection).
>
> Do you see any obvious mistakes I make? How do I have to set up such a
> pipeline to get a PNG (or other image file) output. I would be glad for any
> help.
>
> Thank you very much,
>
> Stephan Lenz
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From cory.quammen at kitware.com  Tue Jan 16 08:51:31 2018
From: cory.quammen at kitware.com (Cory Quammen)
Date: Tue, 16 Jan 2018 08:51:31 -0500
Subject: [vtkusers] InteractorStyle Subclassing
In-Reply-To: <169573414.1647520.1516095653470@mail.yahoo.com>
References: <169573414.1647520.1516095653470.ref@mail.yahoo.com>
 <169573414.1647520.1516095653470@mail.yahoo.com>
Message-ID: <CAB5Fpx5X9j3CjHUdAQrdh_unsLnVV7UhXHsCp77SJzqwF3ZW4Q@mail.gmail.com>

That sounds like a reasonable approach to me.

- Cory

On Tue, Jan 16, 2018 at 4:40 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> Dear All,
>
> What I am trying to do is:
>
> Based on the position of the mouse click in the window, if no actor is
> clicked on, then move the camera (like InteractorStyleTrackballCamera) but
> if the mouse is clicked on an actor(and there are different actors in the
> scene), then move the actor (like InteractorStyleTrackballActor). Also limit
> the motion type of the actor to a specific translation or rotation.
>
> The way I think I might be able to do it is:
>
> Write my own interactor style with a combination of trackballActor and
> trackballCamera after I check the pickposition of the mouse.
>
> My question is:
>
> Am I in the right path? Can I do it in a faster or better way? Is there a
> widget which might help me?
>
> Thank you all.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From bill.lorensen at gmail.com  Tue Jan 16 09:37:54 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Tue, 16 Jan 2018 06:37:54 -0800
Subject: [vtkusers] vtkPNGWriter: Write reduced vtkUnstructuredGrid
 field data to PNG-file via vtkResampleWithDataset
In-Reply-To: <CANjZAi8yXp9TLQNaKReGEU9pTdzx=gr3t8NLrTq4aRBiKavKTw@mail.gmail.com>
References: <d9d191cb-0fea-eea5-d813-5221b42f5303@tu-bs.de>
 <CANjZAi8yXp9TLQNaKReGEU9pTdzx=gr3t8NLrTq4aRBiKavKTw@mail.gmail.com>
Message-ID: <CADZJ4hOM7+CLjLTp-EV3gBHHM2G7rF=vxOPFe1_4Ah2b7YGfFg@mail.gmail.com>

After
 resample->SetInputData( image );
do
resample->Update();


On Tue, Jan 16, 2018 at 5:36 AM, David E DeMarle
<dave.demarle at kitware.com> wrote:
> My guess is that the PNG writer expect three components, not a single
> component array. vtkImageAppendComponents would be one way to make a three
> tuple, but it would be more straightforward to do it in the array
> construction with
> SetNumberOfComponents(3) followed by
> yourloop {
>    InsertNextTuple3(Tint,Tint,Tint);
> }
>
>
> David E DeMarle
> Kitware, Inc.
> Principal Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909
>
> On Tue, Jan 16, 2018 at 3:49 AM, Stephan Lenz <stephan.lenz at tu-bs.de> wrote:
>>
>> Hello everybody,
>>
>> I have problems setting up a pipeline to write data to an PNG-file.
>>
>> I have a 2-D simulation on a large rectangular non-uniform grid (
>> ~60.000.000 Cells ). For visualization of the results I would like to write
>> PNG files (or other Imagefiles) in order to create an animation.
>>
>> I am already able to write VTK-ImageData files (.vti) and make an
>> animation in Paraview. Nevertheless I would prefer to generate the animation
>> directly from images, as the simulation domain should fill the whole
>> animation domain. With paraview fitting the simulation domain seamlessly in
>> the view is not trivial.
>>
>> My current pipeline is:
>>
>>           // this adapter function couples my simulation datastructures to
>> VTK
>>             vtkSmartPointer<vtkUnstructuredGrid> grid =
>> getVtkUnstructuredGrid(dataBase);
>>
>>             // generate the field data
>>             vtkSmartPointer<vtkUnsignedCharArray> data =
>> vtkSmartPointer<vtkUnsignedCharArray>::New();
>>             data->SetNumberOfComponents( 1 );
>>             data->SetName( "T" );
>>             for( Idx cellIdx = 0; cellIdx < numberOfCells; cellIdx++ ){
>>                 unsigned char value = getValue( cellIdx );
>>                 data->InsertNextValue( Tint );
>>             }
>>             grid->GetCellData()->AddArray( data );
>>
>>             // define the grid for the output
>>             vtkSmartPointer<vtkImageData> image =
>> vtkSmartPointer<vtkImageData>::New();
>>             image->SetDimensions(512+1,256+1,1);
>>             image->SetSpacing( L/512, H/256, 0 );
>>
>>             // resample the field data to the coarser vtkImageData
>>             vtkSmartPointer<vtkResampleWithDataSet> resample =
>> vtkSmartPointer<vtkResampleWithDataSet>::New();
>>             resample->SetSourceData( grid );
>>             resample->SetInputData( image );
>>
>>             // write the data to PNG-file (does not work!)
>>             vtkSmartPointer<vtkPNGWriter> writerPNG =
>> vtkSmartPointer<vtkPNGWriter>::New();
>>             writerPNG->SetFileName( ( simulationName + ".png").c_str() );
>>             writerPNG->SetInputData( resample->GetOutput() );
>>             writerPNG->Write();
>>
>>             // write the data to VTI-file (works!)
>>             vtkSmartPointer<vtkXMLImageDataWriter> writer =
>> vtkSmartPointer<vtkXMLImageDataWriter>::New();
>>             writer->SetFileName( ( simulationName + "." +
>> writer->GetDefaultFileExtension() ).c_str() );
>>             writer->SetDataMode( vtkXMLWriter::Binary );
>>             writer->SetInputData( resample->GetOutput() );
>>             writer->Write();
>>
>> The above code compiles and runs without errors, but I do not get any
>> PNG-Files. The VTI-files are written and I can open them in Paraview, as
>> usual. I tried many different things, but did not get single PNG-file out of
>> this.
>>
>> When I, for example, change
>>
>> writerPNG->SetInputData( resample->GetOutput() );
>>
>> to
>>
>> writerPNG->SetInputConnection( resample->GetOutputPort() );
>>
>> I get a VTK Error message, that says "PNGWriter only supports unsigned
>> char and unsigned short inputs". But as far as I see it the field data is
>> unsigned char and this is confirmed by Paraview, when I look into the
>> VTI-files (generated with both SetInputData and SetInputConnection).
>>
>> Do you see any obvious mistakes I make? How do I have to set up such a
>> pipeline to get a PNG (or other image file) output. I would be glad for any
>> help.
>>
>> Thank you very much,
>>
>> Stephan Lenz
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsBasement at noware dot com

From DLRdave at aol.com  Tue Jan 16 10:06:34 2018
From: DLRdave at aol.com (David Cole)
Date: Tue, 16 Jan 2018 10:06:34 -0500
Subject: [vtkusers] InteractorStyle Subclassing
In-Reply-To: <CAB5Fpx5X9j3CjHUdAQrdh_unsLnVV7UhXHsCp77SJzqwF3ZW4Q@mail.gmail.com>
References: <169573414.1647520.1516095653470.ref@mail.yahoo.com>
 <169573414.1647520.1516095653470@mail.yahoo.com>
 <CAB5Fpx5X9j3CjHUdAQrdh_unsLnVV7UhXHsCp77SJzqwF3ZW4Q@mail.gmail.com>
Message-ID: <CAKME8fHhZyUhd-PHipxfPQPQeA-w6-Z+K9GQfqk+RM4MRDW+nQ@mail.gmail.com>

It does sound reasonable.

I work on a project where we do this: subclass the trackballActor
interactor style and then instantiate and hold a camera interactor
style that we delegate to "when appropriate", and the when appropriate
is based on whether the trackballActor interaction prop is null or not
at mouse down time.

Totally works.

I'd point you to it, but it's not publicly available open source at
this point...

Good luck!
David C.



On Tue, Jan 16, 2018 at 8:51 AM, Cory Quammen <cory.quammen at kitware.com> wrote:
> That sounds like a reasonable approach to me.
>
> - Cory
>
> On Tue, Jan 16, 2018 at 4:40 AM, Majid Mohammad sadeghi via vtkusers
> <vtkusers at vtk.org> wrote:
>> Dear All,
>>
>> What I am trying to do is:
>>
>> Based on the position of the mouse click in the window, if no actor is
>> clicked on, then move the camera (like InteractorStyleTrackballCamera) but
>> if the mouse is clicked on an actor(and there are different actors in the
>> scene), then move the actor (like InteractorStyleTrackballActor). Also limit
>> the motion type of the actor to a specific translation or rotation.
>>
>> The way I think I might be able to do it is:
>>
>> Write my own interactor style with a combination of trackballActor and
>> trackballCamera after I check the pickposition of the mouse.
>>
>> My question is:
>>
>> Am I in the right path? Can I do it in a faster or better way? Is there a
>> widget which might help me?
>>
>> Thank you all.
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers

From jayavardhanravi at outlook.com  Tue Jan 16 11:41:21 2018
From: jayavardhanravi at outlook.com (Jay)
Date: Tue, 16 Jan 2018 09:41:21 -0700 (MST)
Subject: [vtkusers] Qt/VTK application unable to make transforms using the
 vtkTransform
Message-ID: <1516120881677-0.post@n5.nabble.com>

I tried to make the QT/VTK application using the vtkEventQtSlotConnect().
When i try to make the transform in the slot function the application
crashes.

Pseudo code:
// created the actor
vtkActor actor = new vtkActor;
vtkTransfor trans = new vtkTransform;
// created the event
vtkEventQtSlotConnect(xx,xxx,xx,slot(slotFunction));

// slotfunction
 void slotFunction()
{
   trans = vtkTransform::SafeDownCast(actor->getUserTransform());
   trans->Identity(); /// this is where application crashes or stops running
   trans->RotateX(10);
   trans->Update();
   renderWindow->Render();
}

Any suggestion would be helpful.

Regards,
Jay






--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From chris.marsh at usask.ca  Tue Jan 16 14:17:08 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Tue, 16 Jan 2018 13:17:08 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
 <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
 <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>
Message-ID: <CAFgDerH_XxLPRFYU_3dpUdCoQJuNES7VqdSX4-fF2Cv3ikDBag@mail.gmail.com>

Hi all,

Thanks for the detailed thoughts.

Is the message you are getting from proj saying that the string you pass is
> not valid?
>
Correct. However, I've verified with both the GDAL and proj4 mailing lists
that the string is correct. The string is actually output from proj4
itself, so I have substantial confidence in it.


> Maybe somebody overrides that memory?
> Try run your program though valgrind and/or comment out chunks of code
> trying to see who causes your error.
>
Valgrind and the Intel memory tools show no memory corruption.

Is VTK in the call stack for the errors you described? If not, I think it
> is not involved in the errors.

GDAL, as I understand, dynamically opens the .so at runtime, so it's tough
to figure out exactly what it is doing. Looking at the backtrace in gdb
shows that it appears to be calling into the system proj4 before it
segfaults.

If I use patchelf to strip the vtkproj4 reference, it is then fine.  If use
patchelf to strip the system proj4 leaving the vtkproj4, I get the same
error and segfault.

I *suspect* GDAL is doing the wrong thing here and loading the wrong
library for some calls. This is all to say, I don't think it's a VTK
problem per se, but is for whatever reason, conflicting on this system.

Further weirdness is that on the machines this works 100%, I don't see any
reference to libvtkproj4.

I'll follow up after I rebuild everything again with the VTK system proj4.

Thanks very much,

Cheers
Chris


University of Saskatchewan

On 15 January 2018 at 10:03, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> Hi Chris,
> Is VTK in the call stack for the errors you described? If not, I think it
> is not involved in the errors.
>
> vtkproj should not interfere with proj, but you can make VTK use the
> system proj with the method described earlier.
>
> Is the message you are getting from proj saying that the string you pass
> is not valid? Maybe somebody overrides that memory?
> Try run your program though valgrind and/or comment out chunks of code
> trying to see who causes your error.
> Hope this helps,
> Dan
>
>
>
> On Fri, Jan 12, 2018 at 3:32 PM, Chris Marsh <chris.marsh at usask.ca> wrote:
>
>> Hi Dan,
>>
>> I'm trying to figure out the issue I detail here:
>> http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-PRO
>> J-4-with-quot-quot-td5338323.html
>> http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-Failed-
>> to-initialize-PROJ-4-with-quot-quot-td5338107.html
>>
>> Effectively the error is that GDAL seems to call the incorrect
>> library/something happens, and the projection fails.
>>
>> In an effort to resolve this I was looking at my binary via LDD and found
>> $ ldd ~/build-release/bin/Release/CHM | grep proj4
>>         libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> (0x00002b517aa36000)
>>         libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
>> (0x00002b51944d2000)
>>
>> If I use patchelf (https://github.com/NixOS/patchelf) to strip
>> libvtkproj4-8.0.so.1 from my binary, my code runs without the error.
>>
>> I don't quite understand why I don't have this problem on other machines
>> though. Looking at other machines I compile on (using a custom VTK build) I
>> don't see any reference to the VTK libproj4 via ldd.
>>
>> Thus I attributed the error to vtkproj4 inclusion. However if you mangle
>> names, then I agree I don't understand why this is happening.
>>
>> Cheers
>> Chris
>>
>>
>> On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>
>>> Chris,
>>>
>>> 1. Going back to the beginning of the thread, I don't understand why
>>> vtklibproj conflicts with another proj, given that we mangle all names. Can
>>> you send us the errors.
>>>
>>> 2. If you do want to build with the system proj4
>>>
>>> Can you send up the output of:
>>> cat CMakeCache.txt | grep LIBPROJ
>>>
>>> This is what I have:
>>> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
>>> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
>>> LIBPROJ_BINDIR:PATH=bin
>>> LIBPROJ_DATADIR:PATH=share/proj
>>> LIBPROJ_DOCDIR:PATH=doc/proj
>>> LIBPROJ_INCLUDEDIR:PATH=include
>>> LIBPROJ_LIBDIR:PATH=lib
>>> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>>> LIBPROJ_USE_THREAD:BOOL=ON
>>> //Use system-installed LIBPROJ4
>>> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
>>> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
>>> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
>>> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
>>> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
>>> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
>>> //ADVANCED property for variable: LIBPROJ_BINDIR
>>> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_DATADIR
>>> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_DOCDIR
>>> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
>>> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_LIBDIR
>>> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_M_LIB
>>> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: LIBPROJ_USE_THREAD
>>> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
>>> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
>>> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>>>
>>>
>>> Make sure
>>> LIBPROJ4_INCLUDE_DIR
>>> LIBPROJ4_LIBRARIES
>>> VTK_USE_SYSTEM_LIBPROJ4
>>> have the correct values.
>>>
>>> All those are cmake variables, you change them using ccmake or cmake-gui.
>>> After that you call:
>>>
>>> cmake .
>>> make
>>>
>>>
>>>
>>> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
>>> aashish.chaudhary at kitware.com> wrote:
>>>
>>>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>>>
>>>> - aashish
>>>>
>>>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca>
>>>> wrote:
>>>>
>>>>> Looks like something is setting
>>>>> PROJ4_INCLUDE_DIR
>>>>> PROJ4_LIBRARY
>>>>> to the system's proj4. I use a custom findproj4 that only looks where
>>>>> I tell it.
>>>>>
>>>>> then I see that
>>>>> LIB_FILES:INTERNAL
>>>>> contains vtkproj4
>>>>> LIB_FILES just holds all my 3rd party libraries I need to link against.
>>>>>
>>>>> Chris Marsh
>>>>> PhD Candidate
>>>>> chrismarsh.ca
>>>>>
>>>>> 121 Research Drive
>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>> University of Saskatchewan
>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>
>>>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>>>> wrote:
>>>>>
>>>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>>>> > Thanks for the details. This doesn't seem to be working for me
>>>>>> though. I've
>>>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line
>>>>>> as well
>>>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>>>>> neither
>>>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>>>
>>>>>> CMake should be getting the flag. If you do:
>>>>>>
>>>>>>     grep -i proj4 CMakeCache.txt
>>>>>>
>>>>>> do any variables stand out as potentially being set to use the
>>>>>> internal
>>>>>> one?
>>>>>>
>>>>>> --Ben
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>
>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> https://vtk.org/mailman/listinfo/vtkusers
>>>>>
>>>>
>>>
>>
>
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From jayavardhanravi at outlook.com  Wed Jan 17 10:49:27 2018
From: jayavardhanravi at outlook.com (Jay)
Date: Wed, 17 Jan 2018 08:49:27 -0700 (MST)
Subject: [vtkusers] Qt/VTK application unable to make transforms using
 the vtkTransform
In-Reply-To: <1516120881677-0.post@n5.nabble.com>
References: <1516120881677-0.post@n5.nabble.com>
Message-ID: <1516204167643-0.post@n5.nabble.com>

I tried to solved by checking the transform object exists in the memory. The
vtkTransform object was deleted so there was memory access violation
exception. By allocating the memory correctly the issue was solved.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From stephen.langer at nist.gov  Wed Jan 17 18:52:02 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Wed, 17 Jan 2018 23:52:02 +0000
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
 <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
 <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>
Message-ID: <356FC1A4-D905-41C9-93FA-40E6DEA22FD6@nist.gov>

Hi Ken --

I've attached a short program that reproduces the problem.  It creates a rectilinear grid (gray checkerboard pattern) and an unstructured grid (red tetrahedra).  The surfaces of some of the tetrahedra are coincident with the outer surfaces of the checkerboard.  If you rotate the view, the tetrahedra are not drawn correctly.

I've tested this with vtk 8.1.0 on macOS 10.12.6 (using vtk built for cocoa) and on Ubuntu 17.10 (running under VirtualBox on macOS).

Thanks for taking a look at it.

-- Steve


From: Ken Martin <ken.martin at kitware.com>
Date: Thursday, January 11, 2018 at 2:41 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] Coincident topology questions

Yes, that should work and -3, -3 is pretty reasonable for values. Something odd is going on. Can you give a bit more detail or a snippet of code?


On Thu, Jan 11, 2018 at 2:30 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
So if I use
     vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
and
     mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
then polygons drawn with that mapper should obscure coincident polygons drawn with other mappers?  That's not happening.    What am I missing?

-- Steve

From: Ken Martin <ken.martin at kitware.com<mailto:ken.martin at kitware.com>>
Date: Wednesday, January 10, 2018 at 7:52 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>>
Cc: "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: Re: [vtkusers] Coincident topology questions

Here is part of an old email that has some description

You can use the relative settings if the two coincident polygons are in two different mappers.


 On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:

>

>>

>> I wanted to take a second to write up a recent change I made to how VTK

>> (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK

>> supported global values for specifying a polygonal offset to push surfaces

>> forward or back in the zbuffer. This was often used to draw a surface back

>> a bit in the zbuffer, and then draw the same surface in wireframe mode at

>> the normal z location. The result was a wireframe overlaid on top of the

>> surface. This approach faced a couple limitations. Every surface was offset

>> the same amount and there was no way to offset points from lines.  To

>> address this I have added a few methods to vtkMapper to specify global line

>> and point offsets as well as ivars to hold local offsets per mapper. The

>> global methods look like:

>>

>>   static void SetResolveCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> while the instance methods look like:

>>

>>   void SetRelativeCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> Both signatures use two parameters which are worth mentioning. The first

>> factor is how much to shift the zbuffer based on how quickly the z values

>> of the surface or line changes. This may seem complicated but it addresses

>> a simple issue.  Due to rasterization issues, surfaces and lines with sharp

>> zvalue slopes are more prone to noise in the zvalues they produce. To

>> combat that, we offset them by an amount that is based on their z slope. If

>> the surface is perpendicular to the view direction the factor is

>> irrelevant, but the more the surface is at a sharp angle to the view

>> direction, the more the factor comes into play. A value of 1.0 to 2.0 is

>> fairly typical for the factor. The second parameter is the units, a

>> constant offset to the zbuffer. It is currently specified conservatively in

>> terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is

>> a good place to start. For rendering points we do not have a slope so those

>> methods only take the units argument.

>>

>> I have changed the global defaults so that surfaces are offset at

>> 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new

>> test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top

>> of lines on top of a surface while rendering the points first and the

>> surface last (the opposite order of their visibility).

>>

>> Thanks

>> Ken


On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology methods?  I can't find an explanation for 'factor' and 'units'.

The attached screenshot shows a surface representation of a grid of rectangular voxels and a wire-frame grid of tetrahedra.  Four of the tetrahedral elements are also drawn with a surface representation in red and are supposed to obscure the voxels, but a mix of tex and voxel is drawn instead.  The surfaces of the voxels and the tetrahedral are coplanar.  They don't share nodes and edges, but the points on the x=0 face all have x=0 exactly.  Is the coincident topology resolution machinery expected to work in this case?

I'm using vtk 8.1.0.

Thanks.

      -- Steve


_______________________________________________
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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7Cf37855aff09d4873915208d5592b52fe%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512964960094193&sdata=C%2Ftp6ax8hFkI0osmhjEhqtg4x1BoiqxdUimXsDuAOYM%3D&reserved=0>
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This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.



--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From powerhak at naver.com  Wed Jan 17 19:55:15 2018
From: powerhak at naver.com (Aleph)
Date: Wed, 17 Jan 2018 17:55:15 -0700 (MST)
Subject: [vtkusers] PolyData Opacity with QSlider
Message-ID: <1516236915135-0.post@n5.nabble.com>

Hi,

Is there anybody who knows how to connect polydata with QSlider?

I'd tried to control polydata opacity with QSlider, but it didn't work.

For connecting those two, i need to use 'connect' function.

One of instances of 'connect' is receiver and it must be QObject.

But i don't know how to transfer polydata(or only opacity value) to QObject.

If you know the way, please reply.

Thanks.

Cheers
Aleph



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From dobashisuguru at gmail.com  Wed Jan 17 22:24:11 2018
From: dobashisuguru at gmail.com (sdobashi)
Date: Wed, 17 Jan 2018 20:24:11 -0700 (MST)
Subject: [vtkusers] Wiki example "PolyDataContourToImageData" does not seem
 to work properly
Message-ID: <1516245851731-0.post@n5.nabble.com>

Hi everyone,

Wiki example "PolyDataContourToImageData" does not seem to work properly:
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/PolyDataContourToImageData/

The output image "labelImage" is not a (filled) circle but has all zero
values.

However, if I replace

extruder-> SetExtrusionTypeToNormalExtrusion ();

to

extruder-> SetExtrusionTypeToVectorExtrusion ();

it seems work properly.

Any updates have been done as for vtkPolyDataToImageStencil or something?
or is there something wrong with me?

I'm using the latest build at this time (commit:
a23006d5008c55b2804e36225d4eda3f6147b949)
and Visual Studio 2015.

Any advice would be much appreciated.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From bill.lorensen at gmail.com  Thu Jan 18 00:38:09 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 17 Jan 2018 21:38:09 -0800
Subject: [vtkusers] Wiki example "PolyDataContourToImageData" does not
 seem to work properly
In-Reply-To: <1516245851731-0.post@n5.nabble.com>
References: <1516245851731-0.post@n5.nabble.com>
Message-ID: <CADZJ4hPqNxJjup5y3gubWE_wMkxA_Tfnd-cW6y5+hnqbuqQqjQ@mail.gmail.com>

I'll take a look.


On Wed, Jan 17, 2018 at 7:24 PM, sdobashi <dobashisuguru at gmail.com> wrote:
> Hi everyone,
>
> Wiki example "PolyDataContourToImageData" does not seem to work properly:
> https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/PolyDataContourToImageData/
>
> The output image "labelImage" is not a (filled) circle but has all zero
> values.
>
> However, if I replace
>
> extruder-> SetExtrusionTypeToNormalExtrusion ();
>
> to
>
> extruder-> SetExtrusionTypeToVectorExtrusion ();
>
> it seems work properly.
>
> Any updates have been done as for vtkPolyDataToImageStencil or something?
> or is there something wrong with me?
>
> I'm using the latest build at this time (commit:
> a23006d5008c55b2804e36225d4eda3f6147b949)
> and Visual Studio 2015.
>
> Any advice would be much appreciated.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers



-- 
Unpaid intern in BillsBasement at noware dot com

From bill.lorensen at gmail.com  Thu Jan 18 01:10:48 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 17 Jan 2018 22:10:48 -0800
Subject: [vtkusers] Wiki example "PolyDataContourToImageData" does not
 seem to work properly
In-Reply-To: <CADZJ4hPqNxJjup5y3gubWE_wMkxA_Tfnd-cW6y5+hnqbuqQqjQ@mail.gmail.com>
References: <1516245851731-0.post@n5.nabble.com>
 <CADZJ4hPqNxJjup5y3gubWE_wMkxA_Tfnd-cW6y5+hnqbuqQqjQ@mail.gmail.com>
Message-ID: <CADZJ4hOa6O0NVTyC+p80DP1NT0fkVnE20dfXQp7z-5eYUEuvng@mail.gmail.com>

You fix is correct. I'll update the example.

Thanks

Bill

On Wed, Jan 17, 2018 at 9:38 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> I'll take a look.
>
>
> On Wed, Jan 17, 2018 at 7:24 PM, sdobashi <dobashisuguru at gmail.com> wrote:
>> Hi everyone,
>>
>> Wiki example "PolyDataContourToImageData" does not seem to work properly:
>> https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/PolyDataContourToImageData/
>>
>> The output image "labelImage" is not a (filled) circle but has all zero
>> values.
>>
>> However, if I replace
>>
>> extruder-> SetExtrusionTypeToNormalExtrusion ();
>>
>> to
>>
>> extruder-> SetExtrusionTypeToVectorExtrusion ();
>>
>> it seems work properly.
>>
>> Any updates have been done as for vtkPolyDataToImageStencil or something?
>> or is there something wrong with me?
>>
>> I'm using the latest build at this time (commit:
>> a23006d5008c55b2804e36225d4eda3f6147b949)
>> and Visual Studio 2015.
>>
>> Any advice would be much appreciated.
>>
>>
>>
>> --
>> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>
>
>
> --
> Unpaid intern in BillsBasement at noware dot com



-- 
Unpaid intern in BillsBasement at noware dot com

From dobashisuguru at gmail.com  Thu Jan 18 01:22:10 2018
From: dobashisuguru at gmail.com (sdobashi)
Date: Wed, 17 Jan 2018 23:22:10 -0700 (MST)
Subject: [vtkusers] Wiki example "PolyDataContourToImageData" does not
 seem to work properly
In-Reply-To: <CADZJ4hOa6O0NVTyC+p80DP1NT0fkVnE20dfXQp7z-5eYUEuvng@mail.gmail.com>
References: <1516245851731-0.post@n5.nabble.com>
 <CADZJ4hPqNxJjup5y3gubWE_wMkxA_Tfnd-cW6y5+hnqbuqQqjQ@mail.gmail.com>
 <CADZJ4hOa6O0NVTyC+p80DP1NT0fkVnE20dfXQp7z-5eYUEuvng@mail.gmail.com>
Message-ID: <1516256530314-0.post@n5.nabble.com>

Hi Bill, 

Thank you very much for your prompt response!




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From 278124177 at qq.com  Thu Jan 18 05:52:02 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Thu, 18 Jan 2018 18:52:02 +0800
Subject: [vtkusers] volumeRendering error with light
Message-ID: <tencent_24C9C43AB2BD650703422C336FF536851A07@qq.com>

when i add vtklight to the renderer and then use the vtkgpuvolumemapper to render a volume, the error has happened at this float status = light->GetSwitch();
    if (status > 0.0)
    {
      double* aColor = light->GetAmbientColor();
      double* dColor = light->GetDiffuseColor();
      double* sColor = light->GetDiffuseColor();
      double intensity = light->GetIntensity();
      lightAmbientColor[numberOfLights][0] = aColor[0] * intensity;
      lightAmbientColor[numberOfLights][1] = aColor[1] * intensity;
      lightAmbientColor[numberOfLights][2] = aColor[2] * intensity;
      lightDiffuseColor[numberOfLights][0] = dColor[0] * intensity;
      lightDiffuseColor[numberOfLights][1] = dColor[1] * intensity;
      lightDiffuseColor[numberOfLights][2] = dColor[2] * intensity;
      lightSpecularColor[numberOfLights][0] = sColor[0] * intensity;
      lightSpecularColor[numberOfLights][1] = sColor[1] * intensity;
      lightSpecularColor[numberOfLights][2] = sColor[2] * intensity;
0x00007FFF5705CA91 (vtkRenderingVolumeOpenGL2-8.1.dll)
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From nicolas.cedilnik at inria.fr  Thu Jan 18 09:45:52 2018
From: nicolas.cedilnik at inria.fr (Nicolas Cedilnik)
Date: Thu, 18 Jan 2018 15:45:52 +0100
Subject: [vtkusers] =?utf-8?q?Represent_2_different_scalars=C2=A0at_once?=
 =?utf-8?q?=3F?=
Message-ID: <a4bbb8a2-f2b2-e0bd-e7f1-e84968ed9d0e@inria.fr>

Hi all,

I'm looking for a way to visualize 2 different scalars on a unique 
rendering of a mesh. My idea would be to represent one scalars with a 
standard LUT such as JET (despite its being considered harmful), and to 
use the other scalars as a way to "modulate" this LUT. The second scalar 
could be used as a brightness/luminance/(any suggestion?) parameter over 
this LUT.

Does this make any sense? Is this easily achievable with VTK?

Thanks for your help,

-- Nicolas


From aashish.chaudhary at kitware.com  Thu Jan 18 10:21:27 2018
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Thu, 18 Jan 2018 15:21:27 +0000
Subject: [vtkusers] volumeRendering error with light
In-Reply-To: <tencent_24C9C43AB2BD650703422C336FF536851A07@qq.com>
References: <tencent_24C9C43AB2BD650703422C336FF536851A07@qq.com>
Message-ID: <CAEw35Z8nxiTAthxSkeVDU7+RVVwR2SFKKXKvNNZ_ofcY+5XScA@mail.gmail.com>

can you provide more details on the error?

On Thu, Jan 18, 2018 at 5:52 AM ???? <278124177 at qq.com> wrote:

> when i add vtklight to the renderer and then use the vtkgpuvolumemapper to
> render a volume, the error has happened at this float status =
> light->GetSwitch();
>     if (status > 0.0)
>     {
>       double* aColor = light->GetAmbientColor();
>       double* dColor = light->GetDiffuseColor();
>       double* sColor = light->GetDiffuseColor();
>       double intensity = light->GetIntensity();
>       lightAmbientColor[numberOfLights][0] = aColor[0] * intensity;
>       lightAmbientColor[numberOfLights][1] = aColor[1] * intensity;
>       lightAmbientColor[numberOfLights][2] = aColor[2] * intensity;
>       lightDiffuseColor[numberOfLights][0] = dColor[0] * intensity;
>       lightDiffuseColor[numberOfLights][1] = dColor[1] * intensity;
>       lightDiffuseColor[numberOfLights][2] = dColor[2] * intensity;
>       lightSpecularColor[numberOfLights][0] = sColor[0] * intensity;
>       lightSpecularColor[numberOfLights][1] = sColor[1] * intensity;
>       lightSpecularColor[numberOfLights][2] = sColor[2] * intensity;
> 0x00007FFF5705CA91 (vtkRenderingVolumeOpenGL2-8.1.dll)
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
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From sankhesh.jhaveri at kitware.com  Thu Jan 18 10:57:35 2018
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Thu, 18 Jan 2018 15:57:35 +0000
Subject: [vtkusers] PolyData Opacity with QSlider
In-Reply-To: <1516236915135-0.post@n5.nabble.com>
References: <1516236915135-0.post@n5.nabble.com>
Message-ID: <CAEcL5t511fGCsQPBYmirwZ=_-Yevg7YzXH7u7+fhvcee8LOh6g@mail.gmail.com>

Hi,

Have your polydata object be accessible to a QObject derived class. Define
a slot like changeOpacity in that same class and connect the slider?s
valueChanged signal to that slot. The slot function can then change the
opacity of the polydata based on the value of the slider.

Hope that helps.
Sankhesh
?

On Wed, Jan 17, 2018 at 7:55 PM Aleph <powerhak at naver.com> wrote:

> Hi,
>
> Is there anybody who knows how to connect polydata with QSlider?
>
> I'd tried to control polydata opacity with QSlider, but it didn't work.
>
> For connecting those two, i need to use 'connect' function.
>
> One of instances of 'connect' is receiver and it must be QObject.
>
> But i don't know how to transfer polydata(or only opacity value) to
> QObject.
>
> If you know the way, please reply.
>
> Thanks.
>
> Cheers
> Aleph
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>


-- 
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From vianamp at gmail.com  Thu Jan 18 12:24:03 2018
From: vianamp at gmail.com (matheus_viana)
Date: Thu, 18 Jan 2018 10:24:03 -0700 (MST)
Subject: [vtkusers] Fatal Python error: PyThreadState_Get: no current
 thread
In-Reply-To: <CADFtqop1=7GEiv=C1k4suGQS7DaMXcBvQFr5cVD4PykALudXAQ@mail.gmail.com>
References: <7AE6EEEF-61E5-4C9E-B55F-EE78748F70CE@decisionvis.com>
 <CADFtqoq4OJqBCjbbXQrOsJ=fuAAJ7fBUKPLCu=oO3a=ys+bcyg@mail.gmail.com>
 <0206B11A-E8C0-4D3D-BD83-A46D83D4F89D@decisionvis.com>
 <CADFtqop1=7GEiv=C1k4suGQS7DaMXcBvQFr5cVD4PykALudXAQ@mail.gmail.com>
Message-ID: <1516296243467-0.post@n5.nabble.com>

Hi guys. What is the current status of this is issue?



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From vianamp at gmail.com  Thu Jan 18 12:36:04 2018
From: vianamp at gmail.com (matheus_viana)
Date: Thu, 18 Jan 2018 10:36:04 -0700 (MST)
Subject: [vtkusers] Problems Installing VTK-Python on OSX
In-Reply-To: <CANwS1=H33+y7AL5sqewRT_zUsH9gX7Og+JLStrmwQNgqvehfDw@mail.gmail.com>
References: <CAFG5aco1ahSixw+OBx1t=pZBnE4g+iVBTvasQzR06abzjH=gNQ@mail.gmail.com>
 <CANwS1=GKv+sF0_ysYJ-7vdN2iNrREYxoDpmcbc7YMYvBFXZtjA@mail.gmail.com>
 <CAFG5acooTzzahuagB4pRfuLq-PcMatS-rBC_WEMxTj0yqK9NPQ@mail.gmail.com>
 <CANwS1=HfMpcHkZ9gjGV4rTDcNRa6jca8AqtamqbM3k3bRR_ZVQ@mail.gmail.com>
 <CAFG5acr-FznLOFvURu27rafGwSn1u=ce5d9Rr6U-XZDYVOTUoQ@mail.gmail.com>
 <CAFG5acoyaiJThvRAjwUR9iffviLwJnFue1kL2gGjHYjRkPJe4Q@mail.gmail.com>
 <CANwS1=H33+y7AL5sqewRT_zUsH9gX7Og+JLStrmwQNgqvehfDw@mail.gmail.com>
Message-ID: <1516296964356-0.post@n5.nabble.com>

Hi Ranveer.

Did you fix this problem? I was also able to get "import vtk" working on
vtkpython, but not on python.

And all my imports are fine:

>>> import vtk
>>> print(vtk.__file__)
/Users/mviana/build/VTK-7.0.0/Wrapping/Python/vtk/__init__.py
>>> import vtkCommonCorePython
>>> print(vtkCommonCorePython.__file__)
/Users/mviana/build/VTK-7.0.0/lib/vtkCommonCorePython.so

One thing I observed was that if I run /usr/bin/vtkpython, then I get this
error: 

mviana at Matheuss-MacBook-Pro:/$ vtkpython
dyld: Library not loaded: @rpath/libpython3.6m.dylib
  Referenced from: /usr/local/bin/vtkpython
  Reason: image not found
Abort trap: 6

However, if I run vtkpython from build directory, everything works fine.

Any help is welcomed :)



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From Andx_roo at live.com  Thu Jan 18 20:38:38 2018
From: Andx_roo at live.com (Andaharoo)
Date: Thu, 18 Jan 2018 18:38:38 -0700 (MST)
Subject: [vtkusers] Contour/Outside Faces of Tetrahedral Mesh Filter
Message-ID: <1516325918718-0.post@n5.nabble.com>

I'm looking for a filter to the find the "contour" of a tetrahedral mesh. IE:
The outside faces. Faces that aren't shared by any two tetrahedron in the
mesh. Does this exist or should I just write it myself? Thanks



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From Andx_roo at live.com  Fri Jan 19 00:47:31 2018
From: Andx_roo at live.com (Andaharoo)
Date: Thu, 18 Jan 2018 22:47:31 -0700 (MST)
Subject: [vtkusers] PolyData Opacity with QSlider
In-Reply-To: <1516236915135-0.post@n5.nabble.com>
References: <1516236915135-0.post@n5.nabble.com>
Message-ID: <1516340851740-0.post@n5.nabble.com>

Not entirely sure what you need but in my program I connect to the
valueChanged(int) signal emitted by a QSlider. So for example:

connect(slider, SIGNAL(valueChanged(int)), this, SLOT(sliderChanged(int)));

Which would connect to my sliderChanged(int) function. Then you can just do
something like:

void sliderChanged(int newValue) {
    actor->GetProperty()->SetOpacity(static_cast<double>(newValue) / 100.0);
}

Then as long as your pipeline is setup like vtkPolyData -> vtkPolyDataMapper
-> vtkActor and that actor is added to the renderer you should be fine. You
might need to call update on your qvtkwidget.



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From Andx_roo at live.com  Fri Jan 19 00:57:17 2018
From: Andx_roo at live.com (Andaharoo)
Date: Thu, 18 Jan 2018 22:57:17 -0700 (MST)
Subject: [vtkusers] visualize vtkPolyData with CORONAL,
 SAGITALL and AXIAL planes
In-Reply-To: <VI1PR0902MB2046869B6A3FECF3D0829E2583160@VI1PR0902MB2046.eurprd09.prod.outlook.com>
References: <VI1PR0902MB204668C551075662CC8274CA83160@VI1PR0902MB2046.eurprd09.prod.outlook.com>
 <CADZJ4hPsF7Yb3hYp+zj5V4uYXECUyD1x4KPV5pZhCygqqnnhgw@mail.gmail.com>
 <VI1PR0902MB2046869B6A3FECF3D0829E2583160@VI1PR0902MB2046.eurprd09.prod.outlook.com>
Message-ID: <1516341437259-0.post@n5.nabble.com>

You can cut a vtkPolyData (a mesh) with a plane and display it with vtkCutter

vtkSmartPointer<vtkCutter> polyCutter = vtkSmartPointer<vtkCutter>::New();
polyCutter->SetCutFunction(Create a vtkPlane and set it here);
polyCutter->SetInputData(Poly Data Here);
polyCutter->Update();

vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputData(polyCutter->GetOutput());
mapper->ScalarVisibilityOff();
vtkSmartPointer<vtkActor> sliceActor = vtkSmartPointer<vtkActor>::New();
sliceActor->SetMappper(mapper);
sliceActor->GetProperty()->LightingOff();
sliceActor->GetProperty()->SetColor(1.0, 0.0, 0.0);
sliceActor->GetProperty()->SetLineWidth(2.0);

renderer->AddActor(sliceActor);



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From felipebordeu at gmail.com  Fri Jan 19 02:46:20 2018
From: felipebordeu at gmail.com (Felipe Bordeu)
Date: Fri, 19 Jan 2018 08:46:20 +0100
Subject: [vtkusers] Contour/Outside Faces of Tetrahedral Mesh Filter
In-Reply-To: <1516325918718-0.post@n5.nabble.com>
References: <1516325918718-0.post@n5.nabble.com>
Message-ID: <CAJbHkX8KtkQmxy3DGStMqYeskZvm4K7C86W47xyPJiFuOR32Bw@mail.gmail.com>

Normally the extract surface of ParaView will do the job. or the
GeometryFilter of VTK (
https://www.vtk.org/doc/nightly/html/classvtkGeometryFilter.html)

Felipe

Le 19 janv. 2018 02:38, "Andaharoo" <Andx_roo at live.com> a ?crit :

> I'm looking for a filter to the find the "contour" of a tetrahedral mesh.
> IE:
> The outside faces. Faces that aren't shared by any two tetrahedron in the
> mesh. Does this exist or should I just write it myself? Thanks
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From nico.schloemer at gmail.com  Fri Jan 19 03:53:25 2018
From: nico.schloemer at gmail.com (=?UTF-8?Q?Nico_Schl=C3=B6mer?=)
Date: Fri, 19 Jan 2018 08:53:25 +0000
Subject: [vtkusers] wedge: different node ordering
Message-ID: <CAK6Z60cjG+2jOATfWp21peOnNkJjeMia4eyR0QWir3T9bk_3VA@mail.gmail.com>

Hi everyone,

Recently, a meshio user came up with an interesting problem in wedge node
ordering when reading VTK files. The VTK specification [2] lists this [3]
ordering, but a file in the wild had that [4]. They look almost identical
at first sight, and in fact they both list wo triangles, where the `k`th
node of the first is connected to the `k`th node of the second. In the
ordering in the specification, however, the second triangle normal points
towards the first triangle, while in the the other, the first triangle
normal points towards the second triangle.

ParaView will happily display both variants, but I'm wondering if the
second case if formally covered by the specification.

(The issue was discovered when doing FEM computations where the second
variant led to negative Jacobians.)

Cheers,
Nico

[1] https://github.com/nschloe/meshio/issues/185
[2] https://www.vtk.org/wp-content/uploads/2015/04/file-formats.pdf
[3]
https://user-images.githubusercontent.com/9031253/35021239-dbb37d7a-fae4-11e7-8534-167726495bd8.png
[4]
https://user-images.githubusercontent.com/181628/35061681-40a8ee76-fbc2-11e7-9fe3-caeff268738a.png
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From rogertrullo at gmail.com  Fri Jan 19 04:18:05 2018
From: rogertrullo at gmail.com (trullro1)
Date: Fri, 19 Jan 2018 02:18:05 -0700 (MST)
Subject: [vtkusers] Number of Points in Marching Cubes
Message-ID: <1516353485627-0.post@n5.nabble.com>

Hi everyone,
I have a question about the marching cubes algorithm in VTK.
I am actually working in a machine learning area, so I am not very familiar
with graphics, I hope this question makes sense.
So I have some 3D binary images, which I convert to a mesh using the
marching cubes algorithm.
The thing is that I have several of these meshes that I want to align, so
that I can use a machine learning algorithm on this data. The problem is
that the algorithms I have seen for alignment, need that all the shapes have
the same number of points (Please correct me if I am wrong).
So my question is, is there a way to have the marching cubes algorithm to
produce a fixed number of points so that I can use the alignment algorithms? 
Or do you know about a better way to do it?
Thanks!!





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From liuchao.uk at hotmail.com  Fri Jan 19 05:24:11 2018
From: liuchao.uk at hotmail.com (=?gb2312?B?wfUgs6w=?=)
Date: Fri, 19 Jan 2018 10:24:11 +0000
Subject: [vtkusers] Polyline in vtkCell
Message-ID: <SG2PR03MB16642E1063AC57A6D83A59438AEF0@SG2PR03MB1664.apcprd03.prod.outlook.com>

Hello VTK users,

I am looking for a way of determining whether the polyline in a vtkCell is a straight line or curved polyline. The reason is that the cutter output needs to be written in custom format and if the polyline is a straight line, I can simply use the first point and last point to represent this polyline as a "line" to reduce the output file size.

The data I deal with is read from STL (open surface). Language is Python.

I have tried analysing the slope of each segment of the polyline. It works but speed is an issue.

Any suggestions are welcomed! Many thanks.

Cheers,
Chao
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From stephan.lenz at tu-bs.de  Fri Jan 19 05:40:50 2018
From: stephan.lenz at tu-bs.de (Stephan Lenz)
Date: Fri, 19 Jan 2018 11:40:50 +0100
Subject: [vtkusers] vtkPNGWriter: Write reduced vtkUnstructuredGrid
 field data to PNG-file via vtkResampleWithDataset
In-Reply-To: <CADZJ4hOM7+CLjLTp-EV3gBHHM2G7rF=vxOPFe1_4Ah2b7YGfFg@mail.gmail.com>
References: <d9d191cb-0fea-eea5-d813-5221b42f5303@tu-bs.de>
 <CANjZAi8yXp9TLQNaKReGEU9pTdzx=gr3t8NLrTq4aRBiKavKTw@mail.gmail.com>
 <CADZJ4hOM7+CLjLTp-EV3gBHHM2G7rF=vxOPFe1_4Ah2b7YGfFg@mail.gmail.com>
Message-ID: <ab706d18-c800-e4e7-934d-36f305f86a79@tu-bs.de>

Thank you very much for your help. Both suggestions did not do the 
trick, though.

I found out that my mistake was to assume that the vtkPNGWriter could 
access the PointData arrays of the vtkImageData. What I had to do is, to 
assign the array to the PointData Scalar. Then the PNG output works very 
well.

Below, I shortly post the solution to my problem:

void writePNG( vtkDataObject * inputData, int nx, int ny, double L, 
double H, std::string filename )
{
 ??? vtkSmartPointer<vtkImageData> image = 
vtkSmartPointer<vtkImageData>::New();
 ??? image->SetDimensions( nx, ny, 1 );
 ??? image->SetSpacing( L / ( nx - 1 ), H / ( ny - 1 ), 0 );

 ??? vtkSmartPointer<vtkResampleWithDataSet> resample = 
vtkSmartPointer<vtkResampleWithDataSet>::New();
 ??? resample->SetSourceData( inputData );
 ??? resample->SetInputData( image );
 ??? resample->Update();

 ??? vtkSmartPointer<vtkImageData> image2 = (vtkImageData*) 
resample->GetOutput();

 ??? image2->GetPointData()->SetScalars( 
image2->GetPointData()->GetArray( 0 ) );

 ??? vtkSmartPointer<vtkPNGWriter> writerPNG = 
vtkSmartPointer<vtkPNGWriter>::New();
 ??? writerPNG->SetFileName( ( filename + ".png" ).c_str() );
 ??? writerPNG->SetInputData( image2 );
 ??? writerPNG->Write();
}

This function assumes that the vtkDataObject inputData has only one 
PointData array. If it has multiple image2->GetPointData()->GetArray( 0 
) has to be changed to 
image2->GetPointData()->GetArray("nameOfTheArray"). This PointData array 
has to be unsigned char or unsigned short (I tested only the former). It 
can be one component for a gray scale PNG or three components for a 
color PNG.

I guess this is a nice and short way to reduce simulation data to images 
bypassing Paraview.

Best regards

Stephan Lenz

Am 16.01.2018 um 15:37 schrieb Bill Lorensen:
> After
>   resample->SetInputData( image );
> do
> resample->Update();
>
>
> On Tue, Jan 16, 2018 at 5:36 AM, David E DeMarle
> <dave.demarle at kitware.com> wrote:
>> My guess is that the PNG writer expect three components, not a single
>> component array. vtkImageAppendComponents would be one way to make a three
>> tuple, but it would be more straightforward to do it in the array
>> construction with
>> SetNumberOfComponents(3) followed by
>> yourloop {
>>     InsertNextTuple3(Tint,Tint,Tint);
>> }
>>
>>
>> David E DeMarle
>> Kitware, Inc.
>> Principal Engineer
>> 21 Corporate Drive
>> Clifton Park, NY 12065-8662
>> Phone: 518-881-4909
>>
>> On Tue, Jan 16, 2018 at 3:49 AM, Stephan Lenz <stephan.lenz at tu-bs.de> wrote:
>>> Hello everybody,
>>>
>>> I have problems setting up a pipeline to write data to an PNG-file.
>>>
>>> I have a 2-D simulation on a large rectangular non-uniform grid (
>>> ~60.000.000 Cells ). For visualization of the results I would like to write
>>> PNG files (or other Imagefiles) in order to create an animation.
>>>
>>> I am already able to write VTK-ImageData files (.vti) and make an
>>> animation in Paraview. Nevertheless I would prefer to generate the animation
>>> directly from images, as the simulation domain should fill the whole
>>> animation domain. With paraview fitting the simulation domain seamlessly in
>>> the view is not trivial.
>>>
>>> My current pipeline is:
>>>
>>>            // this adapter function couples my simulation datastructures to
>>> VTK
>>>              vtkSmartPointer<vtkUnstructuredGrid> grid =
>>> getVtkUnstructuredGrid(dataBase);
>>>
>>>              // generate the field data
>>>              vtkSmartPointer<vtkUnsignedCharArray> data =
>>> vtkSmartPointer<vtkUnsignedCharArray>::New();
>>>              data->SetNumberOfComponents( 1 );
>>>              data->SetName( "T" );
>>>              for( Idx cellIdx = 0; cellIdx < numberOfCells; cellIdx++ ){
>>>                  unsigned char value = getValue( cellIdx );
>>>                  data->InsertNextValue( Tint );
>>>              }
>>>              grid->GetCellData()->AddArray( data );
>>>
>>>              // define the grid for the output
>>>              vtkSmartPointer<vtkImageData> image =
>>> vtkSmartPointer<vtkImageData>::New();
>>>              image->SetDimensions(512+1,256+1,1);
>>>              image->SetSpacing( L/512, H/256, 0 );
>>>
>>>              // resample the field data to the coarser vtkImageData
>>>              vtkSmartPointer<vtkResampleWithDataSet> resample =
>>> vtkSmartPointer<vtkResampleWithDataSet>::New();
>>>              resample->SetSourceData( grid );
>>>              resample->SetInputData( image );
>>>
>>>              // write the data to PNG-file (does not work!)
>>>              vtkSmartPointer<vtkPNGWriter> writerPNG =
>>> vtkSmartPointer<vtkPNGWriter>::New();
>>>              writerPNG->SetFileName( ( simulationName + ".png").c_str() );
>>>              writerPNG->SetInputData( resample->GetOutput() );
>>>              writerPNG->Write();
>>>
>>>              // write the data to VTI-file (works!)
>>>              vtkSmartPointer<vtkXMLImageDataWriter> writer =
>>> vtkSmartPointer<vtkXMLImageDataWriter>::New();
>>>              writer->SetFileName( ( simulationName + "." +
>>> writer->GetDefaultFileExtension() ).c_str() );
>>>              writer->SetDataMode( vtkXMLWriter::Binary );
>>>              writer->SetInputData( resample->GetOutput() );
>>>              writer->Write();
>>>
>>> The above code compiles and runs without errors, but I do not get any
>>> PNG-Files. The VTI-files are written and I can open them in Paraview, as
>>> usual. I tried many different things, but did not get single PNG-file out of
>>> this.
>>>
>>> When I, for example, change
>>>
>>> writerPNG->SetInputData( resample->GetOutput() );
>>>
>>> to
>>>
>>> writerPNG->SetInputConnection( resample->GetOutputPort() );
>>>
>>> I get a VTK Error message, that says "PNGWriter only supports unsigned
>>> char and unsigned short inputs". But as far as I see it the field data is
>>> unsigned char and this is confirmed by Paraview, when I look into the
>>> VTI-files (generated with both SetInputData and SetInputConnection).
>>>
>>> Do you see any obvious mistakes I make? How do I have to set up such a
>>> pipeline to get a PNG (or other image file) output. I would be glad for any
>>> help.
>>>
>>> Thank you very much,
>>>
>>> Stephan Lenz
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>
>


From cory.quammen at kitware.com  Fri Jan 19 07:43:30 2018
From: cory.quammen at kitware.com (Cory Quammen)
Date: Fri, 19 Jan 2018 07:43:30 -0500
Subject: [vtkusers] Polyline in vtkCell
In-Reply-To: <SG2PR03MB16642E1063AC57A6D83A59438AEF0@SG2PR03MB1664.apcprd03.prod.outlook.com>
References: <SG2PR03MB16642E1063AC57A6D83A59438AEF0@SG2PR03MB1664.apcprd03.prod.outlook.com>
Message-ID: <CAB5Fpx4fVNudnenvaxsmYKihg843CriHmYWrb4Br7pmjbO-ryA@mail.gmail.com>

Chao,

I am not aware of any VTK functionality built in to simplify straight
poly lines to a single line segment.

- Cory

On Fri, Jan 19, 2018 at 5:24 AM, ? ? <liuchao.uk at hotmail.com> wrote:
> Hello VTK users,
>
> I am looking for a way of determining whether the polyline in a vtkCell is a
> straight line or curved polyline. The reason is that the cutter output needs
> to be written in custom format and if the polyline is a straight line, I can
> simply use the first point and last point to represent this polyline as a
> "line" to reduce the output file size.
>
> The data I deal with is read from STL (open surface). Language is Python.
>
> I have tried analysing the slope of each segment of the polyline. It works
> but speed is an issue.
>
> Any suggestions are welcomed! Many thanks.
>
> Cheers,
> Chao
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From vtk12af6bc42 at kant.sophonet.de  Fri Jan 19 09:25:33 2018
From: vtk12af6bc42 at kant.sophonet.de (Sophonet)
Date: Fri, 19 Jan 2018 15:25:33 +0100
Subject: [vtkusers] Feed two vtkImageSlice with different resolution /
 spacing into vtkRectilinearSwipe
Message-ID: <31db75bf4779c750715f38caf789afb7@kant.sophonet.de>

Hi list,

in an application, I would like to combine two images with 
vtkRectilinearSwipe. However, docs say that spacing and resolution need 
to match. Obviously I could use vtkImageReslice to adjust them for a 
first image to match the ones of a second image, but for large 3D 
vtkImageData sets, memory footprint just for visualization might not be 
necessary.

Therefore, I was wondering about a lazy but fast approach of just 
reslicing one vtkImageSlice (which I have from a vtkImageResliceMapper) 
to another for eventually feeding the two into vtkRectilinearSwipe.

Any ideas?

Thanks,

          Sophonet



From lasso at queensu.ca  Fri Jan 19 10:45:07 2018
From: lasso at queensu.ca (Andras Lasso)
Date: Fri, 19 Jan 2018 15:45:07 +0000
Subject: [vtkusers] Number of Points in Marching Cubes
In-Reply-To: <1516353485627-0.post@n5.nabble.com>
References: <1516353485627-0.post@n5.nabble.com>
Message-ID: <SN2PR07MB2591DD07219D9A6EF6E9CD41D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>

For non-rigid registration of 3D binary images, I would recommend computing signed distance map image from each image, and then align the distance maps using intensity-based image registration. This method does not require exact match of the surfaces, you get a warping transform as a result.

You can compute the distance map in VTK (https://www.vtk.org/doc/nightly/html/classvtkImplicitModeller.html) but for registration you need to use a registration toolkit, such as ITK or ElastiX.

If you want to try how well this approach works on your data without doing any programming, you can use 3D Slicer application with Segment Registration extension (https://www.slicer.org, https://github.com/SlicerRt/SegmentRegistration). If registration works well for you using the GUI, then you can automate the processing using Python scripting.

Andras

-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of trullro1
Sent: Friday, January 19, 2018 4:18 AM
To: vtkusers at vtk.org
Subject: [vtkusers] Number of Points in Marching Cubes

Hi everyone,
I have a question about the marching cubes algorithm in VTK.
I am actually working in a machine learning area, so I am not very familiar with graphics, I hope this question makes sense.
So I have some 3D binary images, which I convert to a mesh using the marching cubes algorithm.
The thing is that I have several of these meshes that I want to align, so that I can use a machine learning algorithm on this data. The problem is that the algorithms I have seen for alignment, need that all the shapes have the same number of points (Please correct me if I am wrong).
So my question is, is there a way to have the marching cubes algorithm to produce a fixed number of points so that I can use the alignment algorithms? 
Or do you know about a better way to do it?
Thanks!!





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From rogertrullo at gmail.com  Fri Jan 19 11:04:06 2018
From: rogertrullo at gmail.com (trullro1)
Date: Fri, 19 Jan 2018 09:04:06 -0700 (MST)
Subject: [vtkusers] Number of Points in Marching Cubes
In-Reply-To: <SN2PR07MB2591DD07219D9A6EF6E9CD41D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
References: <1516353485627-0.post@n5.nabble.com>
 <SN2PR07MB2591DD07219D9A6EF6E9CD41D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
Message-ID: <1516377846400-0.post@n5.nabble.com>

Thanks Andras!
I hadn't thought about that! 
Now the thing is that I want to build a shape machine learning model, so
probably I will need point to point correspondence to build feature vectors.
But I think your idea can be the first step since now the shapes would be
are roughly aligned. You think that makes sense?



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From lasso at queensu.ca  Fri Jan 19 11:13:09 2018
From: lasso at queensu.ca (Andras Lasso)
Date: Fri, 19 Jan 2018 16:13:09 +0000
Subject: [vtkusers] Number of Points in Marching Cubes
In-Reply-To: <1516377846400-0.post@n5.nabble.com>
References: <1516353485627-0.post@n5.nabble.com>
 <SN2PR07MB2591DD07219D9A6EF6E9CD41D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
 <1516377846400-0.post@n5.nabble.com>
Message-ID: <SN2PR07MB25914D00F2AEDCA14E90A8C6D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>

The result of the registration is a transform that gives you exact correspondence between each point positions between the images, not just a rough initial alignment. Of course you can use a simple rigid transform in the image registration step and then you only get an approximate alignment. But if you only need an approximate alignment you can just as well align using center of gravity, moments, etc.

Andras

-----Original Message-----
From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of trullro1
Sent: Friday, January 19, 2018 11:04 AM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] Number of Points in Marching Cubes

Thanks Andras!
I hadn't thought about that! 
Now the thing is that I want to build a shape machine learning model, so probably I will need point to point correspondence to build feature vectors.
But I think your idea can be the first step since now the shapes would be are roughly aligned. You think that makes sense?



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From rogertrullo at gmail.com  Fri Jan 19 11:50:12 2018
From: rogertrullo at gmail.com (trullro1)
Date: Fri, 19 Jan 2018 09:50:12 -0700 (MST)
Subject: [vtkusers] Number of Points in Marching Cubes
In-Reply-To: <SN2PR07MB25914D00F2AEDCA14E90A8C6D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
References: <1516353485627-0.post@n5.nabble.com>
 <SN2PR07MB2591DD07219D9A6EF6E9CD41D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
 <1516377846400-0.post@n5.nabble.com>
 <SN2PR07MB25914D00F2AEDCA14E90A8C6D8EF0@SN2PR07MB2591.namprd07.prod.outlook.com>
Message-ID: <1516380612501-0.post@n5.nabble.com>

Thanks!
I think I get it, I will try to use the resulting transform then. I already
have ITK.

Best,




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From andy.bauer at kitware.com  Fri Jan 19 13:24:37 2018
From: andy.bauer at kitware.com (Andy Bauer)
Date: Fri, 19 Jan 2018 13:24:37 -0500
Subject: [vtkusers] wedge: different node ordering
In-Reply-To: <CAK6Z60cjG+2jOATfWp21peOnNkJjeMia4eyR0QWir3T9bk_3VA@mail.gmail.com>
References: <CAK6Z60cjG+2jOATfWp21peOnNkJjeMia4eyR0QWir3T9bk_3VA@mail.gmail.com>
Message-ID: <CAMaOp+Eq7V4hWoV8coFRTdejpgStUT1aNkuGXc5mHehUjgBO9Q@mail.gmail.com>

Hi Nico,

Unfortunately, #3 is wrong (even though it's in some of the VTK
publications) and the only way to really determine that is by looking at
the wedge cell. I believe that it renders properly because the cell faces
are still the same, just the normals are wrong. Doing analytical operations
may or may not be incorrect (e.g. Jacobian is negative for #3 as you
noticed but maybe slicing may be correct).

In my opinion this is an inconsistency with the cell specification since
every other 3D cell type has ordering such that the normal will point
outward from the cell when using the right-hand rule to determine normals.

As a side note on this, you can see nearly all cell types (not polygons or
polyhedra) using the vtkCellTypeSource (VTK) or the Unstructured Cell Types
source (PV). See
https://blog.kitware.com/new-vtk-source-for-generating-different-cell-types/
for more details.

Cheers,
Andy

On Fri, Jan 19, 2018 at 3:53 AM, Nico Schl?mer <nico.schloemer at gmail.com>
wrote:

> Hi everyone,
>
> Recently, a meshio user came up with an interesting problem in wedge node
> ordering when reading VTK files. The VTK specification [2] lists this [3]
> ordering, but a file in the wild had that [4]. They look almost identical
> at first sight, and in fact they both list wo triangles, where the `k`th
> node of the first is connected to the `k`th node of the second. In the
> ordering in the specification, however, the second triangle normal points
> towards the first triangle, while in the the other, the first triangle
> normal points towards the second triangle.
>
> ParaView will happily display both variants, but I'm wondering if the
> second case if formally covered by the specification.
>
> (The issue was discovered when doing FEM computations where the second
> variant led to negative Jacobians.)
>
> Cheers,
> Nico
>
> [1] https://github.com/nschloe/meshio/issues/185
> [2] https://www.vtk.org/wp-content/uploads/2015/04/file-formats.pdf
> [3] https://user-images.githubusercontent.com/9031253/
> 35021239-dbb37d7a-fae4-11e7-8534-167726495bd8.png
> [4] https://user-images.githubusercontent.com/181628/
> 35061681-40a8ee76-fbc2-11e7-9fe3-caeff268738a.png
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
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>
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From robertsawko at gmail.com  Sat Jan 20 04:50:48 2018
From: robertsawko at gmail.com (robert.sawko)
Date: Sat, 20 Jan 2018 02:50:48 -0700 (MST)
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured grid
Message-ID: <1516441848429-0.post@n5.nabble.com>

Dear VTKiers,

I am pretty new to programming with VTK although I have worked indirectly
with it through ParaView. I am in process of learning some of the basics.
I'd like to check whether post-processing I am attempting is possible.

I have a collection of VTU/VTK files containing unstructured grids. They
represent 3D contour surfaces. I'd like to be able to iterate through all
the surfaces in a file, compute their area and if they're closed surfaces,
compute the volume enclosed.

I learnt that I can compute volume and surfaces through vtkMassProperties
object, but I tried this only on predefined sources e.g. cylinder or sphere.
I also learnt that I can open my files with vtkXMLUnstructuredGridReader.
Could anyone give me a hint on how to put the things together.

My objective is, I feel, on the border of VTK focus. It's not strictly
speaking visualisaiton, but post-processing.

Roughly speaking I'd like to have the following:

    vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
        vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
    reader->SetFileName(filename.c_str());

    for loop over all separate 3D contour surfaces
      if surface is closed:
        create vtkMassPropties and get volume

Sorry, this may still look pretty vague, but I would appreciate any advice.




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From robertsawko at gmail.com  Sat Jan 20 10:06:32 2018
From: robertsawko at gmail.com (Robert Sawko)
Date: Sat, 20 Jan 2018 08:06:32 -0700 (MST)
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured
 grid
In-Reply-To: <1516441848429-0.post@n5.nabble.com>
References: <1516441848429-0.post@n5.nabble.com>
Message-ID: <1516460792980-0.post@n5.nabble.com>

After some more googling, cross-checking in PV I think I can achieve what I
want by using vtkConnectivityFilter and perhaps combining it with threshold
filter. It doesn't look elegant but it gets me where I want as I want to
simply extract each connected region. Then I can combine it with this
example:

https://cmake.org/Wiki/VTK/Examples/Cxx/PolyData/ClosedSurface

I still don't know how to do my conversion from XMLUnstructuredGridReader,
but I am looking into it... 



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From bill.lorensen at gmail.com  Sat Jan 20 10:31:52 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Sat, 20 Jan 2018 07:31:52 -0800
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured
 grid
In-Reply-To: <1516460792980-0.post@n5.nabble.com>
References: <1516441848429-0.post@n5.nabble.com>
 <1516460792980-0.post@n5.nabble.com>
Message-ID: <CADZJ4hPyWfTM+4urYOh-mU_yPRJ1XEtU9Cexypcqx2-TRWCPkA@mail.gmail.com>

Please use the new VTK Examples site at:
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/ClosedSurface/

We are deprecating the old site.

Also, if you are just learning VTK, you may want to look at:
https://lorensen.github.io/VTKExamples/site/VTKBookFigures/

It tells you how to get the free book online and implements the book's
examples is C== and Python.

Enjoy VTK,

Bill


On Sat, Jan 20, 2018 at 7:06 AM, Robert Sawko <robertsawko at gmail.com> wrote:
> After some more googling, cross-checking in PV I think I can achieve what I
> want by using vtkConnectivityFilter and perhaps combining it with threshold
> filter. It doesn't look elegant but it gets me where I want as I want to
> simply extract each connected region. Then I can combine it with this
> example:
>
> https://cmake.org/Wiki/VTK/Examples/Cxx/PolyData/ClosedSurface
>
> I still don't know how to do my conversion from XMLUnstructuredGridReader,
> but I am looking into it...
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers



-- 
Unpaid intern in BillsBasement at noware dot com

From robertsawko at gmail.com  Sat Jan 20 11:02:22 2018
From: robertsawko at gmail.com (Robert Sawko)
Date: Sat, 20 Jan 2018 09:02:22 -0700 (MST)
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured
 grid
In-Reply-To: <CADZJ4hPyWfTM+4urYOh-mU_yPRJ1XEtU9Cexypcqx2-TRWCPkA@mail.gmail.com>
References: <1516441848429-0.post@n5.nabble.com>
 <1516460792980-0.post@n5.nabble.com>
 <CADZJ4hPyWfTM+4urYOh-mU_yPRJ1XEtU9Cexypcqx2-TRWCPkA@mail.gmail.com>
Message-ID: <1516464142166-0.post@n5.nabble.com>

I seem to be close but not quite there.

I am attaching my minimal code below. I am testing it on a file which
contains 3 surfaces and I am using "ExtractSpecifiedRegion" mode to get each
surface. When I render it the results look correct but the "is surface
closed code" consistently returns "not closed", which I find a bit surprisng
as on inspection it seems that all surfaces are actually closed.

If you have any thoughts on this or how to simplify the code below, please
let me know.


#include <vtkXMLUnstructuredGridReader.h>
#include <vtkSmartPointer.h>
#include <vtkConnectivityFilter.h>
#include <vtkGeometryFilter.h>
#include <vtkFeatureEdges.h>
#include <vtkTriangleFilter.h>
#include <vtkMassProperties.h>
#include <iostream>
 
int main ( int argc, char *argv[] )
{
    //parse command line arguments
    if(argc != 2) {
        std::cerr << "Usage: " << argv[0]
            << " Filename(.vtu)" << std::endl;
        return EXIT_FAILURE;
    }

    std::string filename = argv[1];

    //read all the data from the file
    vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
        vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
    reader->SetFileName(filename.c_str());
    reader->Update();

    vtkSmartPointer<vtkConnectivityFilter> connectivity = 
        vtkSmartPointer<vtkConnectivityFilter>::New();
    connectivity->SetInputConnection(reader->GetOutputPort());
    connectivity->SetExtractionModeToSpecifiedRegions(); 
    connectivity->InitializeSpecifiedRegionList();
    connectivity->Update(); 

    std::cout << "Number of extracted regions: " 
        << connectivity->GetNumberOfExtractedRegions()
        << "\nNumber of output ports: "
        << connectivity->GetNumberOfOutputPorts()
        << "\nExtraction mode: "
        << connectivity->GetExtractionModeAsString()
        << " ("  << connectivity->GetExtractionMode() <<  ")"
        << std::endl;
    
    vtkSmartPointer<vtkGeometryFilter> geometry = 
        vtkSmartPointer<vtkGeometryFilter>::New();
    geometry->SetInputConnection(connectivity->GetOutputPort());
    geometry->Update(); 

    vtkSmartPointer<vtkFeatureEdges> featureEdges = 
        vtkSmartPointer<vtkFeatureEdges>::New();
    featureEdges->SetInputConnection(geometry->GetOutputPort());
    vtkSmartPointer<vtkMassProperties> mass =
        vtkSmartPointer<vtkMassProperties>::New();
    mass->SetInputConnection(geometry->GetOutputPort());

    for(int i = 0; i < connectivity->GetNumberOfExtractedRegions(); i++)
    {
        connectivity->AddSpecifiedRegion(i);
        featureEdges->Update();

        int numberOfOpenEdges =
featureEdges->GetOutput()->GetNumberOfCells();

        mass->Update();
        std::cout << "Region " << i
            << "\n\tSurface area: " << mass->GetSurfaceArea();

        if(numberOfOpenEdges > 0)
        {
            std::cout << "\n\tSurface is not closed" << std::endl;
        }
        else
        {
            std::cout << "\n\tSurface is closed" << std::endl;
            std::cout << "\n\tVolume is: "
                << mass->GetVolume() << std::endl;
        }

    }
    return EXIT_SUCCESS;
}




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From robertsawko at gmail.com  Sat Jan 20 12:10:43 2018
From: robertsawko at gmail.com (Robert Sawko)
Date: Sat, 20 Jan 2018 10:10:43 -0700 (MST)
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured
 grid
In-Reply-To: <1516464142166-0.post@n5.nabble.com>
References: <1516441848429-0.post@n5.nabble.com>
 <1516460792980-0.post@n5.nabble.com>
 <CADZJ4hPyWfTM+4urYOh-mU_yPRJ1XEtU9Cexypcqx2-TRWCPkA@mail.gmail.com>
 <1516464142166-0.post@n5.nabble.com>
Message-ID: <1516468243364-0.post@n5.nabble.com>

@Bill thanks for the welcome message! I downloaded the book.

As for my minimal example I missed the 
 
        featureEdges->FeatureEdgesOff();
	featureEdges->BoundaryEdgesOn();
	featureEdges->NonManifoldEdgesOn();

and the 

        connectivity->DeleteSpecifiedRegion(i);


I think I solved my original problem i.e. iterating over connected regions,
but I am a bit stuck on the closed surface detection. I understand that
vtkFeatureEdge filter is meant to extract edges which satisfy certain
criteria particularly being a boundary edge, but I am just puzzled as my
data set doesn't appaer to contain edges. I am currently playing with PV
with the same filter and the edges indeed disappear if I select compatible
options in the GUI.

Please let me know if you have any suggestions.



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From robertsawko at gmail.com  Sat Jan 20 12:26:50 2018
From: robertsawko at gmail.com (Robert Sawko)
Date: Sat, 20 Jan 2018 10:26:50 -0700 (MST)
Subject: [vtkusers] Iterate over disjoint surfaces of an unstructured
 grid
In-Reply-To: <1516468243364-0.post@n5.nabble.com>
References: <1516441848429-0.post@n5.nabble.com>
 <1516460792980-0.post@n5.nabble.com>
 <CADZJ4hPyWfTM+4urYOh-mU_yPRJ1XEtU9Cexypcqx2-TRWCPkA@mail.gmail.com>
 <1516464142166-0.post@n5.nabble.com> <1516468243364-0.post@n5.nabble.com>
Message-ID: <1516469210831-0.post@n5.nabble.com>

After further debug runs with ParaView I found that my test data set has
corrupted edges which sit just below the surface. This is, I think, a
problem of the code which generated the surfaces rather than the filter.
Please see below.

<http://vtk.1045678.n5.nabble.com/file/t342308/artifact.png> 

The surface may be "closed" but the the boundary edge exists and therfore
the test fails. Again, I would appreciate suggestions, but all in all I
think my initial problem is solved.



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From alican1812 at hotmail.com  Sat Jan 20 13:08:21 2018
From: alican1812 at hotmail.com (alican)
Date: Sat, 20 Jan 2018 11:08:21 -0700 (MST)
Subject: [vtkusers] Please,
 how to get vtkPolydata with a texture applied from vtkActor?
Message-ID: <1516471701691-0.post@n5.nabble.com>

I have an actor that is set with polydata clipped from another polydata. 
Afterward I am adding a texture to this actor. All works as expected.

Now, in another place of my program I want to get a polydata, including
texture, from this actor
and append it to another polydata using vtkAppendPolyData filter. How can I
do this? 
If I am using actor->getMapper()-> getInput() there is no texture.
Thanks.
AC
	

        vtkSmartPointer<vtkSphere> sphereSource =
vtkSmartPointer<vtkSphere>::New();
	sphereSource->SetRadius(radius);
	sphereSource->SetCenter(closestPoint);
	sphereSource->Modified();

	vtkSmartPointer<vtkClipPolyData> clipper =
vtkSmartPointer<vtkClipPolyData>::New();
	clipper->SetInputData(somePolyData);
	clipper->SetValue(0);
	clipper->InsideOutOn();
	clipper->SetClipFunction(sphereSource);
	clipper->Modified();
	clipper->Update();

	vtkSmartPointer<vtkTextureMapToPlane> tmapper =
vtkSmartPointer<vtkTextureMapToPlane>::New();
	tmapper->SetInputConnection(clipper->GetOutputPort());

	vtkSmartPointer<vtkPNGReader> pngReader =
vtkSmartPointer<vtkPNGReader>::New();
	pngReader->SetFileName(texture.toUtf8());
	pngReader->Update();
	vtkSmartPointer<vtkOpenGLTexture> atext =
vtkSmartPointer<vtkOpenGLTexture>::New();
	atext->SetInputConnection(pngReader->GetOutputPort());
	atext->InterpolateOff();
	atext->SetRepeat(false);
	atext->SetEdgeClamp(false);
	atext->Update();

	vtkSmartPointer<vtkDataSetMapper> mapper =
vtkSmartPointer<vtkDataSetMapper>::New();
	mapper->SetInputData(clipper->GetOutput());
	mapper->Update();
	mapper->SetInputConnection(tmapper->GetOutputPort());
	vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
        actor->SetMapper(mapper);
	actor->SetTexture(atext);
	actor->Modified();

	myView->addActor(actor);
	myView->update();





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From bastian.heller at isko-engineers.de  Mon Jan 22 02:02:36 2018
From: bastian.heller at isko-engineers.de (Heller, Bastian)
Date: Mon, 22 Jan 2018 07:02:36 +0000
Subject: [vtkusers] Writing field data of vtkMultiBlockDataSet using
 vtkXMLMultiBlockDataWriter
Message-ID: <7835340e2390413bad1bc50a0b89fc85@exchange1s0.ISKO.NET>

Hi everyone,

I have a large number of unstructured grids (>1000), which are grouped into vtkMultiBlockDataSets as follows:

vtkMultiBlockDataSet (Root)
                vtkMultiBlockDataSet (SubTree 1)
                               vtkUnstructuredGrid
                               vtkUnstructuredGrid
                vtkMultiBlockDataSet (SubTree 2)
                               ?
                               ?

Every subtree consists of several unstructured grids. These grids share the same field data, so I?ve assigned the field data to the subtrees (lets say SubTree 1 has a string array and an int array in its field data).

My problem is: the field data of the subtrees is not written by vtkXMLMultiBlockDataWriter. How can I get this writer to write the field data? Thank you very much in advance.

Best regards

Bastian Heller



Bastian Heller

CAE Prozesse und Optimierung - Services & Development

ISKO engineers AG
Marie-Curie-Stra?e 2, 85055 Ingolstadt
Fon: +49 8458 3112-286
Fax: +49 8458 3112-199

Mail: bastian.heller at isko-engineers.de


[cid:imagec1f062.JPG at a5d77dea.4881ccb7]<http://www.simuspace.de>



http://www.isko-engineers.de
http://www.simuspace.de

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From johan.paasche at gmail.com  Mon Jan 22 07:11:22 2018
From: johan.paasche at gmail.com (KitKat)
Date: Mon, 22 Jan 2018 05:11:22 -0700 (MST)
Subject: [vtkusers] Skeletonization 3D
Message-ID: <1516623082595-0.post@n5.nabble.com>

Hello,

I am looking for a tool able to extract the centerline (skeletonize) of a
structure in a 3D image, if possible without changing length.

What i am passing is a 500 * 500 * 500 vtkImageData composed of char either
at 0 or 1 (binary Image),
and i would like to thin it until I have a 1-voxel wide line structure
corresponding to the centerline, or median axis of the input image.
I know ITK has a thinningfilter, but after looking the source code i saw
that it only take 2D images.

Does someone know if such a tool exists and is compatible with VTK ?



--
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From chamara at piurimaging.com  Mon Jan 22 09:52:02 2018
From: chamara at piurimaging.com (Jayalath Chamara)
Date: Mon, 22 Jan 2018 14:52:02 +0000
Subject: [vtkusers] Skeletonization 3D
In-Reply-To: <1516623082595-0.post@n5.nabble.com>
References: <1516623082595-0.post@n5.nabble.com>
Message-ID: <AM0PR0502MB4019679DCFD7C3BB9246FFC0BCEC0@AM0PR0502MB4019.eurprd05.prod.outlook.com>

Hi,
I have used itkbinarythinningfilter for 3d skeletonization of vascular structures. So, for 3d data you can use the same filter.
Best,
Jaya
________________________________
From: vtkusers <vtkusers-bounces at vtk.org> on behalf of KitKat <johan.paasche at gmail.com>
Sent: Monday, January 22, 2018 1:11:22 PM
To: vtkusers at vtk.org
Subject: [vtkusers] Skeletonization 3D

Hello,

I am looking for a tool able to extract the centerline (skeletonize) of a
structure in a 3D image, if possible without changing length.

What i am passing is a 500 * 500 * 500 vtkImageData composed of char either
at 0 or 1 (binary Image),
and i would like to thin it until I have a 1-voxel wide line structure
corresponding to the centerline, or median axis of the input image.
I know ITK has a thinningfilter, but after looking the source code i saw
that it only take 2D images.

Does someone know if such a tool exists and is compatible with VTK ?



--
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_______________________________________________
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Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

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From lasso at queensu.ca  Mon Jan 22 12:20:53 2018
From: lasso at queensu.ca (Andras Lasso)
Date: Mon, 22 Jan 2018 17:20:53 +0000
Subject: [vtkusers] Skeletonization 3D
In-Reply-To: <AM0PR0502MB4019679DCFD7C3BB9246FFC0BCEC0@AM0PR0502MB4019.eurprd05.prod.outlook.com>
References: <1516623082595-0.post@n5.nabble.com>
 <AM0PR0502MB4019679DCFD7C3BB9246FFC0BCEC0@AM0PR0502MB4019.eurprd05.prod.outlook.com>
Message-ID: <BN3PR07MB25807D21881BE343A8F2569DD8EC0@BN3PR07MB2580.namprd07.prod.outlook.com>

VMTK (http://www.vmtk.org/) has a number of sophisticated VTK/ITK-based tools for skeletonization and centerline extraction, which work for complex, branching structures.

Andras

From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of Jayalath Chamara
Sent: Monday, January 22, 2018 9:52 AM
To: KitKat <johan.paasche at gmail.com>; vtkusers at vtk.org
Subject: Re: [vtkusers] Skeletonization 3D

Hi,
I have used itkbinarythinningfilter for 3d skeletonization of vascular structures. So, for 3d data you can use the same filter.
Best,
Jaya
________________________________
From: vtkusers <vtkusers-bounces at vtk.org<mailto:vtkusers-bounces at vtk.org>> on behalf of KitKat <johan.paasche at gmail.com<mailto:johan.paasche at gmail.com>>
Sent: Monday, January 22, 2018 1:11:22 PM
To: vtkusers at vtk.org<mailto:vtkusers at vtk.org>
Subject: [vtkusers] Skeletonization 3D

Hello,

I am looking for a tool able to extract the centerline (skeletonize) of a
structure in a 3D image, if possible without changing length.

What i am passing is a 500 * 500 * 500 vtkImageData composed of char either
at 0 or 1 (binary Image),
and i would like to thin it until I have a 1-voxel wide line structure
corresponding to the centerline, or median axis of the input image.
I know ITK has a thinningfilter, but after looking the source code i saw
that it only take 2D images.

Does someone know if such a tool exists and is compatible with VTK ?



--
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From gdeee at web.de  Mon Jan 22 12:55:02 2018
From: gdeee at web.de (gde23)
Date: Mon, 22 Jan 2018 10:55:02 -0700 (MST)
Subject: [vtkusers] vtkContextView with QVTKOpenGLWidget - SetRenderWindow /
 update data
Message-ID: <1516643702671-0.post@n5.nabble.com>

Hi,

i want to render a vtkContextView inside a QVTKOpenGLWidget
For this i have a function that takes some points and plots them

void plot::ScatterPolt2D(vtkSmartPointer<vtkTable> inputData, std::string
&unit, double pv_val)
{
    vtkNew<vtkContextView> contextView;

    vtkNew<vtkChartXY> chart;
    contextView->GetScene()->AddItem(chart);

    vtkSmartPointer<vtkPlot> points = chart->AddPlot(vtkChart::POINTS);
    points->SetInputData(inputData, 0, 1);

    contextView->SetRenderWindow(m_vtk_widget->GetRenderWindow());
    m_vtk_widget->GetRenderWindow()->Render();
}

however when i try to update the data (and call the function again) the
program crashes

I guess because of some memory corruption with a not released smartPointer
probabely from here??

contextView->SetRenderWindow(m_vtk_widget->GetRenderWindow());





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From Andx_roo at live.com  Mon Jan 22 23:04:52 2018
From: Andx_roo at live.com (Andaharoo)
Date: Mon, 22 Jan 2018 21:04:52 -0700 (MST)
Subject: [vtkusers] Simplify Mesh Filter?
Message-ID: <1516680292397-0.post@n5.nabble.com>

Is there a filter that can remove coplanar triangles? IE: Many coplanar
triangles become just a few. I tried vtkCleanPolyData and I've tried
vtkDecimatePro with 0.0 decimation? That didn't even make sense but I didn't
know what else to try.



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From baljci at hotmail.com  Tue Jan 23 03:26:43 2018
From: baljci at hotmail.com (Boris Basic)
Date: Tue, 23 Jan 2018 08:26:43 +0000
Subject: [vtkusers] How to disable linking with GL2PS VTK module?
Message-ID: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>

Hi,


When generating a Visual Studio project using CMake, project which depends on vtkRenderingOpenGL2, the following preprocessor definition is added to the vcxproj: "vtkRenderingOpenGL2_AUTOINIT=1(vtkRenderingGL2PSOpenGL2)". This requires the project to link with vtkRenderingGL2PSOpenGL2. But as my project does not require GL2PS, I would like to get rid of this forced dependency, but could not find how to remove or change the autoinit definition. Is it possible to do that?


Cheers,

Boris
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From johan.paasche at gmail.com  Tue Jan 23 04:26:58 2018
From: johan.paasche at gmail.com (KitKat)
Date: Tue, 23 Jan 2018 02:26:58 -0700 (MST)
Subject: [vtkusers] Skeletonization 3D
In-Reply-To: <1516623082595-0.post@n5.nabble.com>
References: <1516623082595-0.post@n5.nabble.com>
Message-ID: <1516699618526-0.post@n5.nabble.com>

Ok thanks i will have a look with ITK first, otherwise i made an algorithm
that seems to work in most cases

I find it strange because in the source code of ITKBinary imageFilter there
are hard-coded 2 dimensions check ... 

Anyway i will give it a try

Thanks again for your replies ! 




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From pkorir at ebi.ac.uk  Tue Jan 23 04:45:17 2018
From: pkorir at ebi.ac.uk (Paul Korir)
Date: Tue, 23 Jan 2018 09:45:17 +0000
Subject: [vtkusers] Simplify Mesh Filter?
In-Reply-To: <1516680292397-0.post@n5.nabble.com>
References: <1516680292397-0.post@n5.nabble.com>
Message-ID: <39176440-8ad2-bc74-3c94-9c5ab6fbc467@ebi.ac.uk>

I think you are on the right track with vtkDecimatePro. There are quite 
a number of examples available at 
https://lorensen.github.io/VTKExamples/site/Python/

Paul K. Korir, PhD
Scientific Programmer
EMBL-EBI
01223494422

On 23/01/2018 04:04, Andaharoo wrote:
> Is there a filter that can remove coplanar triangles? IE: Many coplanar
> triangles become just a few. I tried vtkCleanPolyData and I've tried
> vtkDecimatePro with 0.0 decimation? That didn't even make sense but I didn't
> know what else to try.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers


From bill.lorensen at gmail.com  Tue Jan 23 09:52:14 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Tue, 23 Jan 2018 06:52:14 -0800
Subject: [vtkusers] Simplify Mesh Filter?
In-Reply-To: <1516680292397-0.post@n5.nabble.com>
References: <1516680292397-0.post@n5.nabble.com>
Message-ID: <CADZJ4hPgz-ChT0devSrdATjq0g-J-iLBxx6T-=UNiNSo0cM=2A@mail.gmail.com>

If you set decimatepro with PreserveTopologyOn() and FeatureAngle to a
small number like 1 degrees...

On Jan 22, 2018 8:04 PM, "Andaharoo" <Andx_roo at live.com> wrote:

> Is there a filter that can remove coplanar triangles? IE: Many coplanar
> triangles become just a few. I tried vtkCleanPolyData and I've tried
> vtkDecimatePro with 0.0 decimation? That didn't even make sense but I
> didn't
> know what else to try.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From robert.aungst at gmail.com  Tue Jan 23 12:04:17 2018
From: robert.aungst at gmail.com (Robby Aungst)
Date: Tue, 23 Jan 2018 11:04:17 -0600
Subject: [vtkusers] vtkWarpVector/vtkGlyph3D array problem
In-Reply-To: <CABYSrO_VprjAp4BMOonWQ15N+DMkAQwffpLOBHiOog6GaP-wgw@mail.gmail.com>
References: <CABYSrO83ZLKVtUN6F3Nt+q0CQYuCtzfsRTjxN7HBhTUaT4=4Bw@mail.gmail.com>
 <CADZJ4hPdqDp8Txi1WH1Pu421ktR0a4rtn4A-EGbRPYGP9fPMbQ@mail.gmail.com>
 <CABYSrO88VVHw=9vKDRphtHwxTOKDGju_-wqQMj6GhqzOkuJUDw@mail.gmail.com>
 <A1A2D412-1948-4282-B3FE-B21C3C164DE9@gmail.com>
 <1514585486023-0.post@n5.nabble.com>
 <CABYSrO8sPEDiygWv9Zizsk2uoBAcuB5ZgB6_nuL-SMHcuKoruw@mail.gmail.com>
 <1514987344289-0.post@n5.nabble.com>
 <CABYSrO_oDE=Mkrygbg7Ss5Ffqq9BXR4B13wCUCm2kZ7_jEQ43A@mail.gmail.com>
 <1515145455753-0.post@n5.nabble.com>
 <CABYSrO_VprjAp4BMOonWQ15N+DMkAQwffpLOBHiOog6GaP-wgw@mail.gmail.com>
Message-ID: <CABYSrO98GPZUQr=91CW6pciyNZV=tcu5Lp5fGuRwM7+HmbbW4A@mail.gmail.com>

As an update, I ended up figuring this out. Because I didn't yet have any
vectors set on my polydata, vtkWarpVector escaped before it got to the code
that copies the arrays over. This occurs at line 219 of
https://gitlab.kitware.com/vtk/vtk/blob/master/Filters/General/vtkWarpVector.cxx.
The copying would have occured at lines 244-246.

 My workaround was to set the vectors as all zeros, and then update them
later if I wanted to warp them.

Thanks for all the help.

On Fri, Jan 5, 2018 at 9:48 AM, Robby Aungst <robert.aungst at gmail.com>
wrote:

> Here's what it looks like after I create the poly data:
>
> vtkPolyData (000000000FB4D290)
>   Debug: Off
>   Modified Time: 18815
>   Reference Count: 1
>   Registered Events: (none)
>   Information: 000000000FB3EDD0
>   Data Released: False
>   Global Release Data: Off
>   UpdateTime: 0
>   Field Data:
>     Debug: Off
>     Modified Time: 18719
>     Reference Count: 1
>     Registered Events: (none)
>     Number Of Arrays: 0
>     Number Of Components: 0
>     Number Of Tuples: 0
>   Number Of Points: 19
>   Number Of Cells: 0
>   Cell Data:
>     Debug: Off
>     Modified Time: 18811
>     Reference Count: 1
>     Registered Events:
>       Registered Observers:
>         vtkObserver (000000000FAFB950)
>           Event: 33
>           EventName: ModifiedEvent
>           Command: 000000000FB3ECE0
>           Priority: 0
>           Tag: 1
>     Number Of Arrays: 1
>     Array 0 name = objtypes2
>     Number Of Components: 1
>     Number Of Tuples: 19
>     Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>     Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>     Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>     Scalars: (none)
>     Vectors: (none)
>     Normals: (none)
>     TCoords: (none)
>     Tensors: (none)
>     GlobalIds: (none)
>     PedigreeIds: (none)
>     EdgeFlag: (none)
>   Point Data:
>     Debug: Off
>     Modified Time: 18814
>     Reference Count: 1
>     Registered Events:
>       Registered Observers:
>         vtkObserver (000000000FAFBB30)
>           Event: 33
>           EventName: ModifiedEvent
>           Command: 000000000FB3ECE0
>           Priority: 0
>           Tag: 1
>     Number Of Arrays: 2
>     Array 0 name = objtypes
>     Array 1 name = ZeroDColors
>     Number Of Components: 4
>     Number Of Tuples: 19
>     Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>     Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>     Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>     Scalars:
>       Debug: Off
>       Modified Time: 18771
>       Reference Count: 2
>       Registered Events: (none)
>       Name: ZeroDColors
>       Data type: unsigned char
>       Size: 93
>       MaxId: 56
>       NumberOfComponents: 3
>       Information: 000000000FB3ED80
>         Debug: Off
>         Modified Time: 18770
>         Reference Count: 1
>         Registered Events: (none)
>       Name: ZeroDColors
>       Number Of Components: 3
>       Number Of Tuples: 19
>       Size: 93
>       MaxId: 56
>       LookupTable: (none)
>     Vectors: (none)
>     Normals: (none)
>     TCoords: (none)
>     Tensors: (none)
>     GlobalIds: (none)
>     PedigreeIds: (none)
>     EdgeFlag: (none)
>   Bounds:
>     Xmin,Xmax: (-485.801, 63.3056)
>     Ymin,Ymax: (-54.0469, 53.9257)
>     Zmin,Zmax: (23.6906, 163.528)
>   Compute Time: 21365
>   Number Of Points: 19
>   Point Coordinates: 000000000FAED710
>   Locator: 0000000000000000
>   Number Of Vertices: 0
>   Number Of Lines: 0
>   Number Of Polygons: 0
>   Number Of Triangle Strips: 0
>   Number Of Pieces: 1
>   Piece: -1
>   Ghost Level: 0
>
> Here's what it looks like after it passes through the vtkWarpVector (it's
> now an unstructured grid instead of poly data, and the arrays are now
> missing):
>
> vtkWarpVector (000000000AAFAAB0)
>   Debug: Off
>   Modified Time: 21598
>   Reference Count: 2
>   Registered Events: (none)
>   Executive: 000000000A2DBCD0
>   ErrorCode: No error
>   Information: 000000000F697940
>   AbortExecute: Off
>   Progress: 1
>   Progress Text: (None)
>   Scale Factor: 10
>
>
> vtkUnstructuredGrid (000000000FD7C8A0)
>   Debug: Off
>   Modified Time: 21553
>   Reference Count: 2
>   Registered Events: (none)
>   Information: 000000000FB43920
>   Data Released: False
>   Global Release Data: Off
>   UpdateTime: 21561
>   Field Data:
>     Debug: Off
>     Modified Time: 21543
>     Reference Count: 1
>     Registered Events: (none)
>     Number Of Arrays: 0
>     Number Of Components: 0
>     Number Of Tuples: 0
>   Number Of Points: 0
>   Number Of Cells: 0
>   Cell Data:
>     Debug: Off
>     Modified Time: 21551
>     Reference Count: 1
>     Registered Events:
>       Registered Observers:
>         vtkObserver (000000000FD856E0)
>           Event: 33
>           EventName: ModifiedEvent
>           Command: 000000000FB43AB0
>           Priority: 0
>           Tag: 1
>     Number Of Arrays: 0
>     Number Of Components: 0
>     Number Of Tuples: 0
>     Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>     Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>     Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>     Scalars: (none)
>     Vectors: (none)
>     Normals: (none)
>     TCoords: (none)
>     Tensors: (none)
>     GlobalIds: (none)
>     PedigreeIds: (none)
>     EdgeFlag: (none)
>   Point Data:
>     Debug: Off
>     Modified Time: 21553
>     Reference Count: 1
>     Registered Events:
>       Registered Observers:
>         vtkObserver (000000000FD858F0)
>           Event: 33
>           EventName: ModifiedEvent
>           Command: 000000000FB43AB0
>           Priority: 0
>           Tag: 1
>     Number Of Arrays: 0
>     Number Of Components: 0
>     Number Of Tuples: 0
>     Copy Tuple Flags: ( 1 1 1 1 1 0 1 1 )
>     Interpolate Flags: ( 1 1 1 1 1 0 0 1 )
>     Pass Through Flags: ( 1 1 1 1 1 1 1 1 )
>     Scalars: (none)
>     Vectors: (none)
>     Normals: (none)
>     TCoords: (none)
>     Tensors: (none)
>     GlobalIds: (none)
>     PedigreeIds: (none)
>     EdgeFlag: (none)
>   Bounds:
>     Xmin,Xmax: (1, -1)
>     Ymin,Ymax: (1, -1)
>     Zmin,Zmax: (1, -1)
>   Compute Time: 0
>   Number Of Points: 0
>   Point Coordinates: 0000000000000000
>   Locator: 0000000000000000
>   Number Of Pieces: 1
>   Piece: 0
>   Ghost Level: 0
>
> I posted a simple example earlier in the thread that replicates the
> behavior I'm seeing. Thanks for your help!
>
>
> On Fri, Jan 5, 2018 at 3:44 AM, Charles Kind <charles.kind at bristol.ac.uk>
> wrote:
>
>> Robby,
>>
>> Could you print to console, or whatever, the datastructure before and
>> after
>> WarpVectors and let me see them? ie In Python I just use
>> print(datastructure).
>>
>> Charlie
>>
>>
>>
>> --
>> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>
>
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From allison.vacanti at kitware.com  Tue Jan 23 13:10:02 2018
From: allison.vacanti at kitware.com (Allie Vacanti)
Date: Tue, 23 Jan 2018 13:10:02 -0500
Subject: [vtkusers] How to disable linking with GL2PS VTK module?
In-Reply-To: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>
References: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>
Message-ID: <CA+=e1os=rYFiEdEFHWFv2bO_KKas_POt3L5Xn_RAcH6TcSk+aw@mail.gmail.com>

vtkRenderingGL2PSOpenGL2 is an implementation detail that bridges the
rendering library and gl2ps without creating a direct dependency on gl2ps.
By design, linking to it should not pull in the actual gl2ps library as a
dependency.

I'm not aware of any way to disable this module, AFAIK it seems to be
autoenabled it implements a pure abstract interface in vtkRenderingOpenGL2.
Someone with more knowledge of the details for the IMPLEMENTS keyword in
the module system may know of a trick that I'm not aware of, though.

HTH,
Allie

On Tue, Jan 23, 2018 at 3:26 AM, Boris Basic <baljci at hotmail.com> wrote:

> Hi,
>
>
> When generating a Visual Studio project using CMake, project which depends
> on vtkRenderingOpenGL2, the following preprocessor definition is added to
> the vcxproj: "vtkRenderingOpenGL2_AUTOINIT=1(vtkRenderingGL2PSOpenGL2)".
> This requires the project to link with vtkRenderingGL2PSOpenGL2. But as
> my project does not require GL2PS, I would like to get rid of this forced
> dependency, but could not find how to remove or change the autoinit
> definition. Is it possible to do that?
>
>
> Cheers,
>
> Boris
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
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From james.shi at sbcglobal.net  Tue Jan 23 17:18:18 2018
From: james.shi at sbcglobal.net (James Shi)
Date: Tue, 23 Jan 2018 22:18:18 +0000 (UTC)
Subject: [vtkusers] Bug with vtkImplicitPlaneWidget2?
References: <253380768.3673634.1516745898485.ref@mail.yahoo.com>
Message-ID: <253380768.3673634.1516745898485@mail.yahoo.com>

Hi everyone,
I noticed that if I reset the camera after turning on vtkImplicitPlaneWidget2, nothing is visible, but if I reset the camera before, everything looks fine.? Am I not supposed to reset the camera after turning on the widget, or is there a bug?? I'm using VTK 8.0.1 and Python 3.6.3.Here is the broken version:
import vtk
cone = vtk.vtkConeSource()mapper = vtk.vtkPolyDataMapper()actor = vtk.vtkActor()renderer = vtk.vtkRenderer()window = vtk.vtkRenderWindow()interactor = vtk.vtkRenderWindowInteractor()
mapper.SetInputConnection(cone.GetOutputPort())actor.SetMapper(mapper)renderer.AddActor(actor)window.AddRenderer(renderer)interactor.SetRenderWindow(window)
widget = vtk.vtkImplicitPlaneWidget2()widget.CreateDefaultRepresentation()rep = widget.GetImplicitPlaneRepresentation()widget.SetInteractor(interactor)rep.SetWidgetBounds(cone.GetOutput().GetBounds())widget.On()renderer.ResetCamera()
interactor.Start()
Working version for comparison (notice only the renderer.ResetCamera() line moved):
import vtk
cone = vtk.vtkConeSource()mapper = vtk.vtkPolyDataMapper()actor = vtk.vtkActor()renderer = vtk.vtkRenderer()window = vtk.vtkRenderWindow()interactor = vtk.vtkRenderWindowInteractor()
mapper.SetInputConnection(cone.GetOutputPort())actor.SetMapper(mapper)renderer.AddActor(actor)window.AddRenderer(renderer)interactor.SetRenderWindow(window)renderer.ResetCamera()
widget = vtk.vtkImplicitPlaneWidget2()widget.CreateDefaultRepresentation()rep = widget.GetImplicitPlaneRepresentation()widget.SetInteractor(interactor)rep.SetWidgetBounds(cone.GetOutput().GetBounds())widget.On()
interactor.Start()
I tried printing the bounds of all props, and one of them (I think the sphere in vtkImplicitPlaneRepresentation) has bounds (0.0, 0.0, 0.0, 0.0, -1e+299, 1e+299), which may have caused the issue.? Also, I tried using vtkBoxWidget2 for comparison, and this widget didn't have any issue.
Thanks,James
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From baljci at hotmail.com  Wed Jan 24 03:31:28 2018
From: baljci at hotmail.com (Boris Basic)
Date: Wed, 24 Jan 2018 08:31:28 +0000
Subject: [vtkusers] How to disable linking with GL2PS VTK module?
In-Reply-To: <CA+=e1os=rYFiEdEFHWFv2bO_KKas_POt3L5Xn_RAcH6TcSk+aw@mail.gmail.com>
References: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>,
 <CA+=e1os=rYFiEdEFHWFv2bO_KKas_POt3L5Xn_RAcH6TcSk+aw@mail.gmail.com>
Message-ID: <AM5PR0601MB2306FFA29838A907447B657EC0E20@AM5PR0601MB2306.eurprd06.prod.outlook.com>

Thanks!


Actually I found a hack by adding "#undef vtkRenderingOpenGL2_AUTOINIT" in one header of my project. Though it's not very elegant, it did the job.


Best,

Boris

________________________________
De : Allie Vacanti <allison.vacanti at kitware.com>
Envoy? : mardi 23 janvier 2018 19:10
? : Boris Basic
Cc : vtk vtk
Objet : Re: [vtkusers] How to disable linking with GL2PS VTK module?

vtkRenderingGL2PSOpenGL2 is an implementation detail that bridges the rendering library and gl2ps without creating a direct dependency on gl2ps. By design, linking to it should not pull in the actual gl2ps library as a dependency.

I'm not aware of any way to disable this module, AFAIK it seems to be autoenabled it implements a pure abstract interface in vtkRenderingOpenGL2. Someone with more knowledge of the details for the IMPLEMENTS keyword in the module system may know of a trick that I'm not aware of, though.

HTH,
Allie

On Tue, Jan 23, 2018 at 3:26 AM, Boris Basic <baljci at hotmail.com<mailto:baljci at hotmail.com>> wrote:

Hi,


When generating a Visual Studio project using CMake, project which depends on vtkRenderingOpenGL2, the following preprocessor definition is added to the vcxproj: "vtkRenderingOpenGL2_AUTOINIT=1(vtkRenderingGL2PSOpenGL2)". This requires the project to link with vtkRenderingGL2PSOpenGL2. But as my project does not require GL2PS, I would like to get rid of this forced dependency, but could not find how to remove or change the autoinit definition. Is it possible to do that?


Cheers,

Boris

_______________________________________________
Powered by www.kitware.com<http://www.kitware.com>

Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html

Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ

Search the list archives at: http://markmail.org/search/?q=vtkusers

Follow this link to subscribe/unsubscribe:
https://vtk.org/mailman/listinfo/vtkusers


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From alican1812 at hotmail.com  Wed Jan 24 05:11:54 2018
From: alican1812 at hotmail.com (alican)
Date: Wed, 24 Jan 2018 03:11:54 -0700 (MST)
Subject: [vtkusers] vtkPolygonalSurfacePointPlacer takes 7 seconds to place
 a point.
Message-ID: <1516788714658-0.post@n5.nabble.com>

This piece of code takes 7 seconds for one point on 40,000 points' polydata.
Is it an expected performance?
Is there something I can do to improve it?
Unfortunately, I cannot decimate, the data should be preserved as is. 
Thank you,
AC

			vtkSmartPointer<vtkPolyDataMapper> mapper =			
vtkSmartPointer<vtkPolyDataMapper>::New();
			mapper->SetInputData(input);// of vtkPolyData type

			vtkSmartPointer<vtkActor> actor =				vtkSmartPointer<vtkActor>::New();
			actor->SetMapper(mapper);

			vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
			vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
			renderWindow->AddRenderer(renderer);
			vtkSmartPointer<vtkRenderWindowInteractor> interactor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
			interactor->SetRenderWindow(renderWindow);

			renderer->AddActor(actor);

			vtkSmartPointer<vtkContourWidget> contourWidget =
vtkSmartPointer<vtkContourWidget>::New();
			contourWidget->SetInteractor(interactor);

			vtkOrientedGlyphContourRepresentation* rep =
vtkOrientedGlyphContourRepresentation::SafeDownCast(contourWidget->GetRepresentation());

			vtkPolygonalSurfaceContourLineInterpolator * lip =
vtkPolygonalSurfaceContourLineInterpolator::New();
			lip->GetPolys()->AddItem(input);
		rep->SetLineInterpolator(lip);
			vtkSmartPointer<vtkPolygonalSurfacePointPlacer> pointPlacer =
vtkSmartPointer<vtkPolygonalSurfacePointPlacer>::New();
			pointPlacer->AddProp(actor);
			pointPlacer->GetPolys()->AddItem(input);
			//pointPlacer->SnapToClosestPointOn();

			rep->GetLinesProperty()->SetColor(1, 0, 0);
			rep->GetLinesProperty()->SetLineWidth(3.0);
			rep->SetPointPlacer(pointPlacer);

			contourWidget->EnabledOn();
			renderer->ResetCamera();
			renderWindow->Render();
			interactor->Initialize();

			interactor->Start();





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ben.boeckel at kitware.com  Wed Jan 24 08:36:05 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Wed, 24 Jan 2018 08:36:05 -0500
Subject: [vtkusers] How to disable linking with GL2PS VTK module?
In-Reply-To: <AM5PR0601MB2306FFA29838A907447B657EC0E20@AM5PR0601MB2306.eurprd06.prod.outlook.com>
References: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>
 <CA+=e1os=rYFiEdEFHWFv2bO_KKas_POt3L5Xn_RAcH6TcSk+aw@mail.gmail.com>
 <AM5PR0601MB2306FFA29838A907447B657EC0E20@AM5PR0601MB2306.eurprd06.prod.outlook.com>
Message-ID: <20180124133605.GA20878@megas.kitware.com>

On Wed, Jan 24, 2018 at 08:31:28 +0000, Boris Basic wrote:
> Actually I found a hack by adding "#undef
> vtkRenderingOpenGL2_AUTOINIT" in one header of my project. Though it's
> not very elegant, it did the job.

How are you calling `find_package(VTK)`? If you don't give components,
all compiled modules are loaded and assumed to be used at once, hence
the autoinit.

You can also use `vtk_module_config` to set `VTK_LIBRARIES` up with a
subset of modules (at least based on the examples).

--Ben

From ken.martin at kitware.com  Wed Jan 24 09:22:14 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 24 Jan 2018 09:22:14 -0500
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <356FC1A4-D905-41C9-93FA-40E6DEA22FD6@nist.gov>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
 <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
 <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>
 <356FC1A4-D905-41C9-93FA-40E6DEA22FD6@nist.gov>
Message-ID: <CANXz0SY5P1FEq5NdYJ0pFjbKcsM3WyKd5tbkPdObd1Uz0wdAfg@mail.gmail.com>

Ahh I think I see what the issue is.  If you want to try it I think it can
be fixed in vtkDataSetMapper.cxx around line 134. It copies a bunch of
properties from itself to a polydata mapper that does the rendering. But it
does not copy the coincident settings so they are ignored. I think it can
be fixed with the following changes

https://gitlab.kitware.com/vtk/vtk/merge_requests/3836/diffs

if you want to give it a try.



On Wed, Jan 17, 2018 at 6:52 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> Hi Ken --
>
>
>
> I've attached a short program that reproduces the problem.  It creates a
> rectilinear grid (gray checkerboard pattern) and an unstructured grid (red
> tetrahedra).  The surfaces of some of the tetrahedra are coincident with
> the outer surfaces of the checkerboard.  If you rotate the view, the
> tetrahedra are not drawn correctly.
>
>
>
> I've tested this with vtk 8.1.0 on macOS 10.12.6 (using vtk built for
> cocoa) and on Ubuntu 17.10 (running under VirtualBox on macOS).
>
>
>
> Thanks for taking a look at it.
>
>
>
> -- Steve
>
>
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Thursday, January 11, 2018 at 2:41 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Yes, that should work and -3, -3 is pretty reasonable for values.
> Something odd is going on. Can you give a bit more detail or a snippet of
> code?
>
>
>
>
>
> On Thu, Jan 11, 2018 at 2:30 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> So if I use
>
>      vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
>
> and
>
>      mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
>
> then polygons drawn with that mapper should obscure coincident polygons
> drawn with other mappers?  That's not happening.    What am I missing?
>
>
>
> -- Steve
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Wednesday, January 10, 2018 at 7:52 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Here is part of an old email that has some description
>
>
>
> You can use the relative settings if the two coincident polygons are in
> two different mappers.
>
>
>
> * On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:*
>
> >
>
> >>
>
> >>* I wanted to take a second to write up a recent change I made to how VTK*
>
> >>* (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK*
>
> >>* supported global values for specifying a polygonal offset to push surfaces*
>
> >>* forward or back in the zbuffer. This was often used to draw a surface back*
>
> >>* a bit in the zbuffer, and then draw the same surface in wireframe mode at*
>
> >>* the normal z location. The result was a wireframe overlaid on top of the*
>
> >>* surface. This approach faced a couple limitations. Every surface was offset*
>
> >>* the same amount and there was no way to offset points from lines.  To*
>
> >>* address this I have added a few methods to vtkMapper to specify global line*
>
> >>* and point offsets as well as ivars to hold local offsets per mapper. The*
>
> >>* global methods look like:*
>
> >>
>
> >>*   static void SetResolveCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* while the instance methods look like:*
>
> >>
>
> >>*   void SetRelativeCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* Both signatures use two parameters which are worth mentioning. The first*
>
> >>* factor is how much to shift the zbuffer based on how quickly the z values*
>
> >>* of the surface or line changes. This may seem complicated but it addresses*
>
> >>* a simple issue.  Due to rasterization issues, surfaces and lines with sharp*
>
> >>* zvalue slopes are more prone to noise in the zvalues they produce. To*
>
> >>* combat that, we offset them by an amount that is based on their z slope. If*
>
> >>* the surface is perpendicular to the view direction the factor is*
>
> >>* irrelevant, but the more the surface is at a sharp angle to the view*
>
> >>* direction, the more the factor comes into play. A value of 1.0 to 2.0 is*
>
> >>* fairly typical for the factor. The second parameter is the units, a*
>
> >>* constant offset to the zbuffer. It is currently specified conservatively in*
>
> >>* terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is*
>
> >>* a good place to start. For rendering points we do not have a slope so those*
>
> >>* methods only take the units argument.*
>
> >>
>
> >>* I have changed the global defaults so that surfaces are offset at*
>
> >>* 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new*
>
> >>* test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top*
>
> >>* of lines on top of a surface while rendering the points first and the*
>
> >>* surface last (the opposite order of their visibility).*
>
> >>
>
> >>* Thanks*
>
> >>* Ken*
>
>
>
>
>
> On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> Hi --
>
> How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology
> methods?  I can't find an explanation for 'factor' and 'units'.
>
> The attached screenshot shows a surface representation of a grid of
> rectangular voxels and a wire-frame grid of tetrahedra.  Four of the
> tetrahedral elements are also drawn with a surface representation in red
> and are supposed to obscure the voxels, but a mix of tex and voxel is drawn
> instead.  The surfaces of the voxels and the tetrahedral are coplanar.
> They don't share nodes and edges, but the points on the x=0 face all have
> x=0 exactly.  Is the coincident topology resolution machinery expected to
> work in this case?
>
> I'm using vtk 8.1.0.
>
> Thanks.
>
>       -- Steve
>
>
> _______________________________________________
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> Follow this link to subscribe/unsubscribe:
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>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7Cf37855aff09d4873915208d5592b52fe%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512964960094193&sdata=C%2Ftp6ax8hFkI0osmhjEhqtg4x1BoiqxdUimXsDuAOYM%3D&reserved=0>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+%0D+Clifton+Park+NY+12065&entry=gmail&source=g>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
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> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
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From stephen.langer at nist.gov  Wed Jan 24 10:39:22 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Wed, 24 Jan 2018 15:39:22 +0000
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <CANXz0SY5P1FEq5NdYJ0pFjbKcsM3WyKd5tbkPdObd1Uz0wdAfg@mail.gmail.com>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
 <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
 <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>
 <356FC1A4-D905-41C9-93FA-40E6DEA22FD6@nist.gov>
 <CANXz0SY5P1FEq5NdYJ0pFjbKcsM3WyKd5tbkPdObd1Uz0wdAfg@mail.gmail.com>
Message-ID: <8B656AE9-FC27-4CE8-81A2-A8FBF302841A@nist.gov>

Hi Ken --

Yes, that seems to work.  Thank you!

Is there an error in the documentation for vtkMapper::SetResolveCoincidentTopologyToPolygonOffset()?  It says that it does not distinguish vertices and lines from one another, but that appears not to be the case.

-- Steve

From: Ken Martin <ken.martin at kitware.com>
Date: Wednesday, January 24, 2018 at 9:22 AM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] Coincident topology questions

Ahh I think I see what the issue is.  If you want to try it I think it can be fixed in vtkDataSetMapper.cxx around line 134. It copies a bunch of properties from itself to a polydata mapper that does the rendering. But it does not copy the coincident settings so they are ignored. I think it can be fixed with the following changes

https://gitlab.kitware.com/vtk/vtk/merge_requests/3836/diffs<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.kitware.com%2Fvtk%2Fvtk%2Fmerge_requests%2F3836%2Fdiffs&data=02%7C01%7Cstephen.langer%40nist.gov%7C0490782e5daa41a069f808d56335de66%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636524005382908921&sdata=pFFFvab5051y1cytl01YcUpnKEUlZV60KA6r30veBQg%3D&reserved=0>

if you want to give it a try.



On Wed, Jan 17, 2018 at 6:52 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi Ken --

I've attached a short program that reproduces the problem.  It creates a rectilinear grid (gray checkerboard pattern) and an unstructured grid (red tetrahedra).  The surfaces of some of the tetrahedra are coincident with the outer surfaces of the checkerboard.  If you rotate the view, the tetrahedra are not drawn correctly.

I've tested this with vtk 8.1.0 on macOS 10.12.6 (using vtk built for cocoa) and on Ubuntu 17.10 (running under VirtualBox on macOS).

Thanks for taking a look at it.

-- Steve


From: Ken Martin <ken.martin at kitware.com<mailto:ken.martin at kitware.com>>
Date: Thursday, January 11, 2018 at 2:41 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>>
Cc: "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: Re: [vtkusers] Coincident topology questions

Yes, that should work and -3, -3 is pretty reasonable for values. Something odd is going on. Can you give a bit more detail or a snippet of code?


On Thu, Jan 11, 2018 at 2:30 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
So if I use
     vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
and
     mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
then polygons drawn with that mapper should obscure coincident polygons drawn with other mappers?  That's not happening.    What am I missing?

-- Steve

From: Ken Martin <ken.martin at kitware.com<mailto:ken.martin at kitware.com>>
Date: Wednesday, January 10, 2018 at 7:52 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>>
Cc: "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: Re: [vtkusers] Coincident topology questions

Here is part of an old email that has some description

You can use the relative settings if the two coincident polygons are in two different mappers.


 On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:

>

>>

>> I wanted to take a second to write up a recent change I made to how VTK

>> (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK

>> supported global values for specifying a polygonal offset to push surfaces

>> forward or back in the zbuffer. This was often used to draw a surface back

>> a bit in the zbuffer, and then draw the same surface in wireframe mode at

>> the normal z location. The result was a wireframe overlaid on top of the

>> surface. This approach faced a couple limitations. Every surface was offset

>> the same amount and there was no way to offset points from lines.  To

>> address this I have added a few methods to vtkMapper to specify global line

>> and point offsets as well as ivars to hold local offsets per mapper. The

>> global methods look like:

>>

>>   static void SetResolveCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> while the instance methods look like:

>>

>>   void SetRelativeCoincidentTopologyLineOffsetParameters(

>>     double factor, double units);

>>

>> Both signatures use two parameters which are worth mentioning. The first

>> factor is how much to shift the zbuffer based on how quickly the z values

>> of the surface or line changes. This may seem complicated but it addresses

>> a simple issue.  Due to rasterization issues, surfaces and lines with sharp

>> zvalue slopes are more prone to noise in the zvalues they produce. To

>> combat that, we offset them by an amount that is based on their z slope. If

>> the surface is perpendicular to the view direction the factor is

>> irrelevant, but the more the surface is at a sharp angle to the view

>> direction, the more the factor comes into play. A value of 1.0 to 2.0 is

>> fairly typical for the factor. The second parameter is the units, a

>> constant offset to the zbuffer. It is currently specified conservatively in

>> terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is

>> a good place to start. For rendering points we do not have a slope so those

>> methods only take the units argument.

>>

>> I have changed the global defaults so that surfaces are offset at

>> 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new

>> test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top

>> of lines on top of a surface while rendering the points first and the

>> surface last (the opposite order of their visibility).

>>

>> Thanks

>> Ken


On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology methods?  I can't find an explanation for 'factor' and 'units'.

The attached screenshot shows a surface representation of a grid of rectangular voxels and a wire-frame grid of tetrahedra.  Four of the tetrahedral elements are also drawn with a surface representation in red and are supposed to obscure the voxels, but a mix of tex and voxel is drawn instead.  The surfaces of the voxels and the tetrahedral are coplanar.  They don't share nodes and edges, but the points on the x=0 face all have x=0 exactly.  Is the coincident topology resolution machinery expected to work in this case?

I'm using vtk 8.1.0.

Thanks.

      -- Steve


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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7Cf37855aff09d4873915208d5592b52fe%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512964960094193&sdata=C%2Ftp6ax8hFkI0osmhjEhqtg4x1BoiqxdUimXsDuAOYM%3D&reserved=0>
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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7C0490782e5daa41a069f808d56335de66%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636524005382908921&sdata=HTQxAIID%2FxlCz0gQm5sCdJpUCnm29XEFoToqiE0Rnk0%3D&reserved=0>
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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From ken.martin at kitware.com  Wed Jan 24 11:07:02 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 24 Jan 2018 11:07:02 -0500
Subject: [vtkusers] Coincident topology questions
In-Reply-To: <8B656AE9-FC27-4CE8-81A2-A8FBF302841A@nist.gov>
References: <62A2ABE9-2E92-4E71-9F72-1548FB13392E@nist.gov>
 <CANXz0SaZFPx1P5D1rT5RpKV_eRfpFSG8EdT+DXGNxbk1Qd=vTQ@mail.gmail.com>
 <FDC9912D-D145-46C0-BB83-A0F6B043EF3E@nist.gov>
 <CANXz0SZKJgXH1cwiNU4YF6ZwOfDfa_DtRgj9wUL0TLOERn8dog@mail.gmail.com>
 <356FC1A4-D905-41C9-93FA-40E6DEA22FD6@nist.gov>
 <CANXz0SY5P1FEq5NdYJ0pFjbKcsM3WyKd5tbkPdObd1Uz0wdAfg@mail.gmail.com>
 <8B656AE9-FC27-4CE8-81A2-A8FBF302841A@nist.gov>
Message-ID: <CANXz0SaK+YTLwM9WNEFJO02VXddc+LTS0PJZB_t3F+mE_d_5+g@mail.gmail.com>

Yes, the documentation is out of date. That documentation was correct for
the old OpenGL backend, but the new code is more capable. I'll try to
remember to update it.

On Wed, Jan 24, 2018 at 10:39 AM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> Hi Ken --
>
>
>
> Yes, that seems to work.  Thank you!
>
>
>
> Is there an error in the documentation for vtkMapper::
> SetResolveCoincidentTopologyToPolygonOffset()?  It says that it does not
> distinguish vertices and lines from one another, but that appears not to be
> the case.
>
>
>
> -- Steve
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Wednesday, January 24, 2018 at 9:22 AM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Ahh I think I see what the issue is.  If you want to try it I think it can
> be fixed in vtkDataSetMapper.cxx around line 134. It copies a bunch of
> properties from itself to a polydata mapper that does the rendering. But it
> does not copy the coincident settings so they are ignored. I think it can
> be fixed with the following changes
>
>
>
> https://gitlab.kitware.com/vtk/vtk/merge_requests/3836/diffs
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.kitware.com%2Fvtk%2Fvtk%2Fmerge_requests%2F3836%2Fdiffs&data=02%7C01%7Cstephen.langer%40nist.gov%7C0490782e5daa41a069f808d56335de66%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636524005382908921&sdata=pFFFvab5051y1cytl01YcUpnKEUlZV60KA6r30veBQg%3D&reserved=0>
>
>
>
> if you want to give it a try.
>
>
>
>
>
>
>
> On Wed, Jan 17, 2018 at 6:52 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> Hi Ken --
>
>
>
> I've attached a short program that reproduces the problem.  It creates a
> rectilinear grid (gray checkerboard pattern) and an unstructured grid (red
> tetrahedra).  The surfaces of some of the tetrahedra are coincident with
> the outer surfaces of the checkerboard.  If you rotate the view, the
> tetrahedra are not drawn correctly.
>
>
>
> I've tested this with vtk 8.1.0 on macOS 10.12.6 (using vtk built for
> cocoa) and on Ubuntu 17.10 (running under VirtualBox on macOS).
>
>
>
> Thanks for taking a look at it.
>
>
>
> -- Steve
>
>
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Thursday, January 11, 2018 at 2:41 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Yes, that should work and -3, -3 is pretty reasonable for values.
> Something odd is going on. Can you give a bit more detail or a snippet of
> code?
>
>
>
>
>
> On Thu, Jan 11, 2018 at 2:30 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> So if I use
>
>      vtkMapper::SetResolveCoincidentTopologyToPolygonOffset();
>
> and
>
>      mapper->SetRelativeCoincidentTopologyPolygonOffsetParameters(-3,- 3);
>
> then polygons drawn with that mapper should obscure coincident polygons
> drawn with other mappers?  That's not happening.    What am I missing?
>
>
>
> -- Steve
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Wednesday, January 10, 2018 at 7:52 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] Coincident topology questions
>
>
>
> Here is part of an old email that has some description
>
>
>
> You can use the relative settings if the two coincident polygons are in
> two different mappers.
>
>
>
> * On Tue, Dec 1, 2015 at 1:29 PM, Ken Martin <ken.martin at kitware.com <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpublic.kitware.com%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=MOAz%2BaPGI75IQNOwc551Ke8i2lYFFFyY3aD3E4dq%2BuQ%3D&reserved=0>> wrote:*
>
> >
>
> >>
>
> >>* I wanted to take a second to write up a recent change I made to how VTK*
>
> >>* (on the OpenGL2 backend) can handle coincident geometry.  Previously VTK*
>
> >>* supported global values for specifying a polygonal offset to push surfaces*
>
> >>* forward or back in the zbuffer. This was often used to draw a surface back*
>
> >>* a bit in the zbuffer, and then draw the same surface in wireframe mode at*
>
> >>* the normal z location. The result was a wireframe overlaid on top of the*
>
> >>* surface. This approach faced a couple limitations. Every surface was offset*
>
> >>* the same amount and there was no way to offset points from lines.  To*
>
> >>* address this I have added a few methods to vtkMapper to specify global line*
>
> >>* and point offsets as well as ivars to hold local offsets per mapper. The*
>
> >>* global methods look like:*
>
> >>
>
> >>*   static void SetResolveCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* while the instance methods look like:*
>
> >>
>
> >>*   void SetRelativeCoincidentTopologyLineOffsetParameters(*
>
> >>*     double factor, double units);*
>
> >>
>
> >>* Both signatures use two parameters which are worth mentioning. The first*
>
> >>* factor is how much to shift the zbuffer based on how quickly the z values*
>
> >>* of the surface or line changes. This may seem complicated but it addresses*
>
> >>* a simple issue.  Due to rasterization issues, surfaces and lines with sharp*
>
> >>* zvalue slopes are more prone to noise in the zvalues they produce. To*
>
> >>* combat that, we offset them by an amount that is based on their z slope. If*
>
> >>* the surface is perpendicular to the view direction the factor is*
>
> >>* irrelevant, but the more the surface is at a sharp angle to the view*
>
> >>* direction, the more the factor comes into play. A value of 1.0 to 2.0 is*
>
> >>* fairly typical for the factor. The second parameter is the units, a*
>
> >>* constant offset to the zbuffer. It is currently specified conservatively in*
>
> >>* terms of a 16bit zbuffer for the OpenGL backend so a value of 1.0 to 2.0 is*
>
> >>* a good place to start. For rendering points we do not have a slope so those*
>
> >>* methods only take the units argument.*
>
> >>
>
> >>* I have changed the global defaults so that surfaces are offset at*
>
> >>* 2.0,2.0, lines are offset at 1.0,1.0, and points are at 0.0. There is a new*
>
> >>* test in OpenGL2/Testing/CXX/TestCoincident.cxx that renders points on top*
>
> >>* of lines on top of a surface while rendering the points first and the*
>
> >>* surface last (the opposite order of their visibility).*
>
> >>
>
> >>* Thanks*
>
> >>* Ken*
>
>
>
>
>
> On Wed, Jan 10, 2018 at 5:44 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> Hi --
>
> How does one set the arguments to the various vtkMapper::SetRelativeCoincidentTopology
> methods?  I can't find an explanation for 'factor' and 'units'.
>
> The attached screenshot shows a surface representation of a grid of
> rectangular voxels and a wire-frame grid of tetrahedra.  Four of the
> tetrahedral elements are also drawn with a surface representation in red
> and are supposed to obscure the voxels, but a mix of tex and voxel is drawn
> instead.  The surfaces of the voxels and the tetrahedral are coplanar.
> They don't share nodes and edges, but the points on the x=0 face all have
> x=0 exactly.  Is the coincident topology resolution machinery expected to
> work in this case?
>
> I'm using vtk 8.1.0.
>
> Thanks.
>
>       -- Steve
>
>
> _______________________________________________
> Powered by www.kitware.com
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=5QzbWO3Fo9lHhuc2VH8Y7Wlun4i%2BdDk1p%2Fd2zzsQuho%3D&reserved=0>
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com%2Fopensource%2Fopensource.html&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=h7DBgY2pmRRUZD6LrmGpIHO1oIOADRTuXF3XffiY%2Fgk%3D&reserved=0>
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.vtk.org%2FWiki%2FVTK_FAQ&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=LbMs8SnnejFm%2BgoK7jbU7Q32nAXIUq6tYfeL1%2FrSVhU%3D&reserved=0>
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
> <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmarkmail.org%2Fsearch%2F%3Fq%3Dvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=RBVsZcDO3qCqk7Q%2BNWm74dXagCcgvDWKhwPP2fYdBpc%3D&reserved=0>
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fvtk.org%2Fmailman%2Flistinfo%2Fvtkusers&data=02%7C01%7Cstephen.langer%40nist.gov%7Ceb611caace3b43fd388508d5588d7ed0%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512287107516935&sdata=Cigk%2F94r%2BYZdT6qteN4lhfgTn2SnkHc5nqXvzI3pREc%3D&reserved=0>
>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7Cf37855aff09d4873915208d5592b52fe%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636512964960094193&sdata=C%2Ftp6ax8hFkI0osmhjEhqtg4x1BoiqxdUimXsDuAOYM%3D&reserved=0>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmaps.google.com%2F%3Fq%3D28%2BCorporate%2BDrive%2B%250D%2BClifton%2BPark%2BNY%2B12065%26entry%3Dgmail%26source%3Dg&data=02%7C01%7Cstephen.langer%40nist.gov%7C0490782e5daa41a069f808d56335de66%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636524005382908921&sdata=HTQxAIID%2FxlCz0gQm5sCdJpUCnm29XEFoToqiE0Rnk0%3D&reserved=0>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>
>
>
>
>
> --
>
> Ken Martin PhD
>
> Distinguished Engineer
> Kitware Inc.
>
> 28 Corporate Drive
> <https://maps.google.com/?q=28+Corporate+Drive+%0D+Clifton+Park+NY+12065&entry=gmail&source=g>
> Clifton Park NY 12065
>
>
>
> This communication, including all attachments, contains confidential and
> legally privileged information, and it is intended only for the use of the
> addressee.  Access to this email by anyone else is unauthorized. If you are
> not the intended recipient, any disclosure, copying, distribution or any
> action taken in reliance on it is prohibited and may be unlawful. If you
> received this communication in error please notify us immediately and
> destroy the original message.  Thank you.
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From fromseattle at gmail.com  Wed Jan 24 19:42:20 2018
From: fromseattle at gmail.com (From Seattle)
Date: Wed, 24 Jan 2018 16:42:20 -0800
Subject: [vtkusers] vtkXMLImageDataWriter issue with image origin
Message-ID: <CALihOk=9aoJSAc2D70jMZWJVGOF_UxnE-4CVzCwpn_A2eNK3dQ@mail.gmail.com>

Hi,

I am using vtkXMLImageDataWriter to convert image file from nrrd format to
vti format. What I realized is that after conversion, the data origin is
set to (0, 0, 0), where as the original image origin is not at (0, 0, 0).
Does anyone know why it's doing that?

The following are the conversion code I used, verified that the origin
parameter is not (0, 0, 0).

    typedef uint8_t AnatomyPixelType;
    const   unsigned int  Dimension3 = 3;
    typedef itk::Image<AnatomyPixelType, Dimension3> VolImageType;

    itk::ImageFileReader<VolImageType>::Pointer reader =
itk::ImageFileReader<VolImageType>::New();
    itk::ImageToVTKImageFilter<VolImageType>::Pointer filter =
itk::ImageToVTKImageFilter<VolImageType>::New();
    vtkSmartPointer<vtkXMLImageDataWriter> writer =
vtkSmartPointer<vtkXMLImageDataWriter>::New();

    reader->SetFileName(fileName.c_str());

    filter->SetInput(reader->GetOutput());
    filter->Update();

    vtkSmartPointer<vtkImageData> imageData = filter->GetOutput();

    double origin[3];
    imageData->GetOrigin(origin);

    std::string outFileName = fileName.substr(0, fileName.length() - 5);
    outFileName += ".vti";
    writer->SetInputData(filter->GetOutput());
    writer->SetFileName(outFileName.c_str());
    writer->Write();
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From baljci at hotmail.com  Thu Jan 25 04:36:44 2018
From: baljci at hotmail.com (Boris Basic)
Date: Thu, 25 Jan 2018 09:36:44 +0000
Subject: [vtkusers] How to disable linking with GL2PS VTK module?
In-Reply-To: <20180124133605.GA20878@megas.kitware.com>
References: <AM5PR0601MB2306148F756BD3B4A4AC271EC0E30@AM5PR0601MB2306.eurprd06.prod.outlook.com>
 <CA+=e1os=rYFiEdEFHWFv2bO_KKas_POt3L5Xn_RAcH6TcSk+aw@mail.gmail.com>
 <AM5PR0601MB2306FFA29838A907447B657EC0E20@AM5PR0601MB2306.eurprd06.prod.outlook.com>,
 <20180124133605.GA20878@megas.kitware.com>
Message-ID: <AM5PR0601MB2306A0D37918ECD4C15110B6C0E10@AM5PR0601MB2306.eurprd06.prod.outlook.com>


Hi Ben,


I was calling 'find_package(VTK 8.1 REQUIRED)'. Giving components corrected the problem.


Thanks!

Boris

________________________________
De : Ben Boeckel <ben.boeckel at kitware.com>
Envoy? : mercredi 24 janvier 2018 14:36
? : Boris Basic
Cc : vtk vtk
Objet : Re: [vtkusers] How to disable linking with GL2PS VTK module?

On Wed, Jan 24, 2018 at 08:31:28 +0000, Boris Basic wrote:
> Actually I found a hack by adding "#undef
> vtkRenderingOpenGL2_AUTOINIT" in one header of my project. Though it's
> not very elegant, it did the job.

How are you calling `find_package(VTK)`? If you don't give components,
all compiled modules are loaded and assumed to be used at once, hence
the autoinit.

You can also use `vtk_module_config` to set `VTK_LIBRARIES` up with a
subset of modules (at least based on the examples).

--Ben
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From majid.msadeghi at yahoo.com  Thu Jan 25 06:27:59 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Thu, 25 Jan 2018 11:27:59 +0000 (UTC)
Subject: [vtkusers] scaling polydata
References: <1537095886.134454.1516879679752.ref@mail.yahoo.com>
Message-ID: <1537095886.134454.1516879679752@mail.yahoo.com>

Dear All,
When I scale a polydata by a uniform scale like: (2,2,2) , the data aslo moves a bit towards a direction depending on where the origin is located in relation to the polydata. 
Is there a way to make the scaling transformation work as if each surface is moved relative to its normal? (I want an effect like an offset of the shape)

I know there is vtkwarpvector but I can not give its output to a plydata. (or maybe I am wrong!)
Any help?

Thanks.
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From cory.quammen at kitware.com  Thu Jan 25 07:21:01 2018
From: cory.quammen at kitware.com (Cory Quammen)
Date: Thu, 25 Jan 2018 07:21:01 -0500
Subject: [vtkusers] scaling polydata
In-Reply-To: <1537095886.134454.1516879679752@mail.yahoo.com>
References: <1537095886.134454.1516879679752.ref@mail.yahoo.com>
 <1537095886.134454.1516879679752@mail.yahoo.com>
Message-ID: <CAB5Fpx7g_uo2YqPxemb+r-womumWinyb-7Kbe55A0xTVBO3A1w@mail.gmail.com>

vtkWarpVector should produce a vtkPolyData. If it doesn't you can
always use vtkDataSetSurface to get a vtkPolyData surface from the
output of vtkWarpVector.

- Cory

On Thu, Jan 25, 2018 at 6:27 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> Dear All,
>
> When I scale a polydata by a uniform scale like: (2,2,2) , the data aslo
> moves a bit towards a direction depending on where the origin is located in
> relation to the polydata.
>
> Is there a way to make the scaling transformation work as if each surface is
> moved relative to its normal? (I want an effect like an offset of the shape)
>
> I know there is vtkwarpvector but I can not give its output to a plydata.
> (or maybe I am wrong!)
>
> Any help?
>
> Thanks.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From bill.lorensen at gmail.com  Thu Jan 25 09:23:29 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Thu, 25 Jan 2018 06:23:29 -0800
Subject: [vtkusers] ANN: VTKBookFigures have been Python'ed
Message-ID: <CADZJ4hPbBAUPuR2BmOx3aGK9hpn305pn88FMZ6iV_HpaRKrCbg@mail.gmail.com>

Folks,

Our colleague Andrew Maclean has accomplished an amazing task. He has
created python equivalents of the 114 C++ examples in the VTK Book.
Each C++ example in
https://lorensen.github.io/VTKExamples/site/VTKBookFigures/ now
contains a hyperlink to the python example. Users now can compare the
C++ and Python implementations.

Also, in the C++ and Python summary pages, examples that have an
equivalent in the other language, link to that example.
Cross-reference links in the book figure, C++ and Python summary, are
generated automatically.

If you see Andrew Maclean in a trip Downunder, please say "G'day" and
buy him a beer.


-- 
Unpaid intern in BillsParadise at noware dot com

From lgazoni at gmail.com  Thu Jan 25 18:05:22 2018
From: lgazoni at gmail.com (Leandro Gazoni)
Date: Thu, 25 Jan 2018 21:05:22 -0200
Subject: [vtkusers] Annotations in a vtkchartXY
Message-ID: <CAHqkvTi3rEj8QNpyFtURdRQSWbozV4=eswk36oqFAYThfoG1EQ@mail.gmail.com>

Dear all,

I would like to include a floating window with text on a vtkchartxy
graphic. it's possible?

If you know the way, please reply.
Thanks.

Regards,
Leandro Gazoni
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From landinghere at 163.com  Fri Jan 26 01:29:56 2018
From: landinghere at 163.com (landings)
Date: Thu, 25 Jan 2018 23:29:56 -0700 (MST)
Subject: [vtkusers] What does white models and blue models mean?
Message-ID: <1516948196499-0.post@n5.nabble.com>

I use mapper and renderer with default settings, but some models are white
and some are blue. These models all have point data with them. So what's the
difference?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From 278124177 at qq.com  Fri Jan 26 02:57:13 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Fri, 26 Jan 2018 15:57:13 +0800
Subject: [vtkusers] vtkStreamLineTracer
Message-ID: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>

I have a .vtk file , how can i use the vtkstreamTracer to create streamline form this file?
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From mathieu.westphal at kitware.com  Fri Jan 26 03:13:57 2018
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 26 Jan 2018 09:13:57 +0100
Subject: [vtkusers] vtkStreamLineTracer
In-Reply-To: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
References: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
Message-ID: <CAC2t4URA_bJTW5m9gKZ5Rb0YL_kpF6V=GBZMp6c6MTk3uAtfsQ@mail.gmail.com>

Hello

a .vtk file can be of any vtk datatype. To use the vtkStreamTracer, you
need a volumic data with at least a vectoriel point or cell data on it.

Best,

Mathieu Westphal

On Fri, Jan 26, 2018 at 8:57 AM, ???? <278124177 at qq.com> wrote:

> I have a .vtk file , how can i use the vtkstreamTracer to create
> streamline form this file?
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
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From mathieu.westphal at kitware.com  Fri Jan 26 03:27:40 2018
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 26 Jan 2018 09:27:40 +0100
Subject: [vtkusers] vtkStreamLineTracer
In-Reply-To: <tencent_AD5887DEB76D33357D895364A6CB41061A08@qq.com>
References: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
 <CAC2t4URA_bJTW5m9gKZ5Rb0YL_kpF6V=GBZMp6c6MTk3uAtfsQ@mail.gmail.com>
 <tencent_AD5887DEB76D33357D895364A6CB41061A08@qq.com>
Message-ID: <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>

Please find this example here :
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/StreamLines



Mathieu Westphal

On Fri, Jan 26, 2018 at 9:18 AM, ???? <278124177 at qq.com> wrote:

>
> the .vtk file is converted from.trk file   the .vtk file   can you give me
> an example to use the vtkstreamtracer please?
>
> ------------------ ???? ------------------
> *???:* "Mathieu Westphal";<mathieu.westphal at kitware.com>;
> *????:* 2018?1?26?(???) ??4:13
> *???:* "????"<278124177 at qq.com>;
> *??:* "vtkusers"<vtkusers at vtk.org>;
> *??:* Re: [vtkusers] vtkStreamLineTracer
>
> Hello
>
> a .vtk file can be of any vtk datatype. To use the vtkStreamTracer, you
> need a volumic data with at least a vectoriel point or cell data on it.
>
> Best,
>
> Mathieu Westphal
>
> On Fri, Jan 26, 2018 at 8:57 AM, ???? <278124177 at qq.com> wrote:
>
>> I have a .vtk file , how can i use the vtkstreamTracer to create
>> streamline form this file?
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>>
>>
>
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From 278124177 at qq.com  Fri Jan 26 03:38:47 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Fri, 26 Jan 2018 16:38:47 +0800
Subject: [vtkusers] =?gb18030?b?u9i4tKO6ICB2dGtTdHJlYW1MaW5lVHJhY2Vy?=
In-Reply-To: <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>
References: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
 <CAC2t4URA_bJTW5m9gKZ5Rb0YL_kpF6V=GBZMp6c6MTk3uAtfsQ@mail.gmail.com>
 <tencent_AD5887DEB76D33357D895364A6CB41061A08@qq.com>
 <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>
Message-ID: <tencent_4D60757B1FB7A5D4CC2412907D2D7B19380A@qq.com>

I've seen this example  and i use the vtk8.1 and can not find streamline.h , is there something wrong with my vtk ? thanks.



------------------ ???? ------------------
???: "Mathieu Westphal"<mathieu.westphal at kitware.com>; 
????: 2018?1?26?(???) ??4:27
???: "????"<278124177 at qq.com>; "vtkusers"<vtkusers at vtk.org>; 
??: Re: [vtkusers] vtkStreamLineTracer



Please find this example here :
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/StreamLines





Mathieu Westphal



 
On Fri, Jan 26, 2018 at 9:18 AM, ???? <278124177 at qq.com> wrote:


the .vtk file is converted from.trk file   the .vtk file   can you give me an example to use the vtkstreamtracer please?


------------------ ???? ------------------
???: "Mathieu Westphal";<mathieu.westphal at kitware.com>;
????: 2018?1?26?(???) ??4:13
???: "????"<278124177 at qq.com>;
??: "vtkusers"<vtkusers at vtk.org>; 
??: Re: [vtkusers] vtkStreamLineTracer



Hello


a .vtk file can be of any vtk datatype. To use the vtkStreamTracer, you need a volumic data with at least a vectoriel point or cell data on it.


Best,


Mathieu Westphal



 
On Fri, Jan 26, 2018 at 8:57 AM, ???? <278124177 at qq.com> wrote:
I have a .vtk file , how can i use the vtkstreamTracer to create streamline form this file?
_______________________________________________
 Powered by www.kitware.com
 
 Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
 
 Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
 
 Search the list archives at: http://markmail.org/search/?q=vtkusers
 
 Follow this link to subscribe/unsubscribe:
 https://vtk.org/mailman/listinfo/vtkusers
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From mathieu.westphal at kitware.com  Fri Jan 26 03:42:08 2018
From: mathieu.westphal at kitware.com (Mathieu Westphal)
Date: Fri, 26 Jan 2018 09:42:08 +0100
Subject: [vtkusers] vtkStreamLineTracer
In-Reply-To: <tencent_4D60757B1FB7A5D4CC2412907D2D7B19380A@qq.com>
References: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
 <CAC2t4URA_bJTW5m9gKZ5Rb0YL_kpF6V=GBZMp6c6MTk3uAtfsQ@mail.gmail.com>
 <tencent_AD5887DEB76D33357D895364A6CB41061A08@qq.com>
 <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>
 <tencent_4D60757B1FB7A5D4CC2412907D2D7B19380A@qq.com>
Message-ID: <CAC2t4URnGCFCUp0-8kwWsco1FRoT4WLEZMa2LkGA4ZMLQnx6qQ@mail.gmail.com>

Sorry

I did not link the right code sorry.
Here is a updated example
https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/Kitchen/

You can find lots of other examples here :
https://lorensen.github.io/VTKExamples/site/Cxx/

Best,

Mathieu Westphal

On Fri, Jan 26, 2018 at 9:38 AM, ???? <278124177 at qq.com> wrote:

> I've seen this example  and i use the vtk8.1 and can not find streamline.h
> , is there something wrong with my vtk ? thanks.
>
>
> ------------------ ???? ------------------
> *???:* "Mathieu Westphal"<mathieu.westphal at kitware.com>;
> *????:* 2018?1?26?(???) ??4:27
> *???:* "????"<278124177 at qq.com>; "vtkusers"<vtkusers at vtk.org>;
> *??:* Re: [vtkusers] vtkStreamLineTracer
>
> Please find this example here :
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/StreamLines
>
>
>
> Mathieu Westphal
>
> On Fri, Jan 26, 2018 at 9:18 AM, ???? <278124177 at qq.com> wrote:
>
>>
>> the .vtk file is converted from.trk file   the .vtk file   can you give
>> me an example to use the vtkstreamtracer please?
>>
>> ------------------ ???? ------------------
>> *???:* "Mathieu Westphal";<mathieu.westphal at kitware.com>;
>> *????:* 2018?1?26?(???) ??4:13
>> *???:* "????"<278124177 at qq.com>;
>> *??:* "vtkusers"<vtkusers at vtk.org>;
>> *??:* Re: [vtkusers] vtkStreamLineTracer
>>
>> Hello
>>
>> a .vtk file can be of any vtk datatype. To use the vtkStreamTracer, you
>> need a volumic data with at least a vectoriel point or cell data on it.
>>
>> Best,
>>
>> Mathieu Westphal
>>
>> On Fri, Jan 26, 2018 at 8:57 AM, ???? <278124177 at qq.com> wrote:
>>
>>> I have a .vtk file , how can i use the vtkstreamTracer to create
>>> streamline form this file?
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>>
>>>
>>
>
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From majid.msadeghi at yahoo.com  Fri Jan 26 04:30:39 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Fri, 26 Jan 2018 09:30:39 +0000 (UTC)
Subject: [vtkusers] scaling polydata
In-Reply-To: <CAB5Fpx7g_uo2YqPxemb+r-womumWinyb-7Kbe55A0xTVBO3A1w@mail.gmail.com>
References: <1537095886.134454.1516879679752.ref@mail.yahoo.com>
 <1537095886.134454.1516879679752@mail.yahoo.com>
 <CAB5Fpx7g_uo2YqPxemb+r-womumWinyb-7Kbe55A0xTVBO3A1w@mail.gmail.com>
Message-ID: <872202210.850986.1516959039634@mail.yahoo.com>

I have 2 questions:
1.Why is this compile error happening?
?? ?vtkSmartPointer<vtkPolyDataNormals> normals =vtkSmartPointer<vtkPolyDataNormals>::New();
?? ?normals->SetInputData(notSmoothedRotatedX);
?? ?normals->SplittingOff();
?? ?vtkSmartPointer<vtkWarpVector> warp =vtkSmartPointer<vtkWarpVector>::New();
?? ?warp->SetInputConnection(normals->GetOutputPort());
?? ?warp->SetInputArrayToProcess(0, 0, 0,vtkDataObject::FIELD_ASSOCIATION_POINTS,vtkDataSetAttributes::NORMALS);
?? ?warp->SetScaleFactor(1.2);
?? ?warp->Update();
????????vtkSmartPointer<vtkPolyData> warped_poly = vtkSmartPointer<vtkPolyData>::New();????warped_poly = warp;

error C2664: 'vtkPolyData *vtkSmartPointer<vtkPolyData>::CheckType(T *)': cannot convert argument 1 from 'vtkWarpVector *' to 'vtkPolyData *'


2. I wonder why sometimes in VTK a vtkpolydata is created without using a smart pointer?
Like in this example:

https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DataSetSurfaceFilter

Thanks.
 

    On Thursday, January 25, 2018, 2:21:03 PM GMT+2, Cory Quammen <cory.quammen at kitware.com> wrote:  
 
 vtkWarpVector should produce a vtkPolyData. If it doesn't you can
always use vtkDataSetSurface to get a vtkPolyData surface from the
output of vtkWarpVector.

- Cory

On Thu, Jan 25, 2018 at 6:27 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> Dear All,
>
> When I scale a polydata by a uniform scale like: (2,2,2) , the data aslo
> moves a bit towards a direction depending on where the origin is located in
> relation to the polydata.
>
> Is there a way to make the scaling transformation work as if each surface is
> moved relative to its normal? (I want an effect like an offset of the shape)
>
> I know there is vtkwarpvector but I can not give its output to a plydata.
> (or maybe I am wrong!)
>
> Any help?
>
> Thanks.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
  
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From vianamp at gmail.com  Fri Jan 26 06:45:44 2018
From: vianamp at gmail.com (matheus_viana)
Date: Fri, 26 Jan 2018 04:45:44 -0700 (MST)
Subject: [vtkusers] How to use concatenation in vtkTransform
Message-ID: <1516967144568-0.post@n5.nabble.com>

Hi guys.

Simple question about concatenation of matrices in a transform.

Does the vtkTransformFilter use all the matrices concatenated in the
vtkTransform?

Thanks a lot,



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From vianamp at gmail.com  Fri Jan 26 06:47:09 2018
From: vianamp at gmail.com (matheus_viana)
Date: Fri, 26 Jan 2018 04:47:09 -0700 (MST)
Subject: [vtkusers] How to use concatenation in vtkTransform
In-Reply-To: <1516967144568-0.post@n5.nabble.com>
References: <1516967144568-0.post@n5.nabble.com>
Message-ID: <1516967229830-0.post@n5.nabble.com>

I found this might also be relevant here:
http://vtk.1045678.n5.nabble.com/how-to-concatenate-transformations-tt4308627.html



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From vianamp at gmail.com  Fri Jan 26 07:46:53 2018
From: vianamp at gmail.com (matheus_viana)
Date: Fri, 26 Jan 2018 05:46:53 -0700 (MST)
Subject: [vtkusers] How to use concatenation in vtkTransform
In-Reply-To: <1516967144568-0.post@n5.nabble.com>
References: <1516967144568-0.post@n5.nabble.com>
Message-ID: <1516970813854-0.post@n5.nabble.com>

Hi guys.

I found the answer is yes.

Thank you.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From bill.lorensen at gmail.com  Fri Jan 26 09:38:35 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Fri, 26 Jan 2018 06:38:35 -0800
Subject: [vtkusers] vtkStreamLineTracer
In-Reply-To: <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>
References: <tencent_6FEFAF36D69AC0C41F32EB656F0310AC2A07@qq.com>
 <CAC2t4URA_bJTW5m9gKZ5Rb0YL_kpF6V=GBZMp6c6MTk3uAtfsQ@mail.gmail.com>
 <tencent_AD5887DEB76D33357D895364A6CB41061A08@qq.com>
 <CAC2t4UTbM5dpLHedNPcHxEaXPRxso4hF7rVHaoieV3GDBEZz_Q@mail.gmail.com>
Message-ID: <CADZJ4hP6hP+769dgsZG7AgfPRfzm8OYgkzf--hP1uR0Spr9_9Q@mail.gmail.com>

Thta example uses the deprectaed

The class vtkStreamlines. The new class is vtkStreamTracer. Also
please look at the new VTK Examples sitre at
https://lorensen.github.io/VTKExamples/site/

The wiki site is no longer supported.

Here is an example:

https://lorensen.github.io/VTKExamples/site/Cxx/Visualization/StreamLines/

Bill

On Fri, Jan 26, 2018 at 12:27 AM, Mathieu Westphal
<mathieu.westphal at kitware.com> wrote:
> Please find this example here :
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/StreamLines
>
>
>
> Mathieu Westphal
>
> On Fri, Jan 26, 2018 at 9:18 AM, ???? <278124177 at qq.com> wrote:
>>
>>
>> the .vtk file is converted from.trk file   the .vtk file   can you give me
>> an example to use the vtkstreamtracer please?
>>
>> ------------------ ???? ------------------
>> ???: "Mathieu Westphal";<mathieu.westphal at kitware.com>;
>> ????: 2018?1?26?(???) ??4:13
>> ???: "????"<278124177 at qq.com>;
>> ??: "vtkusers"<vtkusers at vtk.org>;
>> ??: Re: [vtkusers] vtkStreamLineTracer
>>
>> Hello
>>
>> a .vtk file can be of any vtk datatype. To use the vtkStreamTracer, you
>> need a volumic data with at least a vectoriel point or cell data on it.
>>
>> Best,
>>
>> Mathieu Westphal
>>
>> On Fri, Jan 26, 2018 at 8:57 AM, ???? <278124177 at qq.com> wrote:
>>>
>>> I have a .vtk file , how can i use the vtkstreamTracer to create
>>> streamline form this file?
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the VTK FAQ at:
>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>
>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> https://vtk.org/mailman/listinfo/vtkusers
>>>
>>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsParadise at noware dot com

From bill.lorensen at gmail.com  Fri Jan 26 09:50:21 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Fri, 26 Jan 2018 06:50:21 -0800
Subject: [vtkusers] scaling polydata
In-Reply-To: <872202210.850986.1516959039634@mail.yahoo.com>
References: <1537095886.134454.1516879679752.ref@mail.yahoo.com>
 <1537095886.134454.1516879679752@mail.yahoo.com>
 <CAB5Fpx7g_uo2YqPxemb+r-womumWinyb-7Kbe55A0xTVBO3A1w@mail.gmail.com>
 <872202210.850986.1516959039634@mail.yahoo.com>
Message-ID: <CADZJ4hNVS3UaVm1TFtiSavZMWnY3dt0PmPUcCNQxcHkhApqqOw@mail.gmail.com>

1. The error message tells you what is wrong. You need:
warped_poly=warp->GetOutput();

2. Please go to this site:
https://lorensen.github.io/VTKExamples/site/ for examples. The wiki
site is not supported any more

Try looking at the VTK Book(which is free). https://www.vtk.org/vtk-textbook/

And the examples from the book:
https://lorensen.github.io/VTKExamples/site/VTKBookFigures/


On Fri, Jan 26, 2018 at 1:30 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> I have 2 questions:
>
> 1.Why is this compile error happening?
>
>     vtkSmartPointer<vtkPolyDataNormals> normals
> =vtkSmartPointer<vtkPolyDataNormals>::New();
>     normals->SetInputData(notSmoothedRotatedX);
>     normals->SplittingOff();
>
>     vtkSmartPointer<vtkWarpVector> warp
> =vtkSmartPointer<vtkWarpVector>::New();
>     warp->SetInputConnection(normals->GetOutputPort());
>     warp->SetInputArrayToProcess(0, 0,
> 0,vtkDataObject::FIELD_ASSOCIATION_POINTS,vtkDataSetAttributes::NORMALS);
>     warp->SetScaleFactor(1.2);
>     warp->Update();
>
>     vtkSmartPointer<vtkPolyData> warped_poly =
> vtkSmartPointer<vtkPolyData>::New();
>     warped_poly = warp;
>
> error C2664: 'vtkPolyData *vtkSmartPointer<vtkPolyData>::CheckType(T *)':
> cannot convert argument 1 from 'vtkWarpVector *' to 'vtkPolyData *'
>
>
> 2. I wonder why sometimes in VTK a vtkpolydata is created without using a
> smart pointer?
>
> Like in this example:
>
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DataSetSurfaceFilter
>
> Thanks.
>
>
> On Thursday, January 25, 2018, 2:21:03 PM GMT+2, Cory Quammen
> <cory.quammen at kitware.com> wrote:
>
>
> vtkWarpVector should produce a vtkPolyData. If it doesn't you can
> always use vtkDataSetSurface to get a vtkPolyData surface from the
> output of vtkWarpVector.
>
> - Cory
>
> On Thu, Jan 25, 2018 at 6:27 AM, Majid Mohammad sadeghi via vtkusers
> <vtkusers at vtk.org> wrote:
>> Dear All,
>>
>> When I scale a polydata by a uniform scale like: (2,2,2) , the data aslo
>> moves a bit towards a direction depending on where the origin is located
>> in
>> relation to the polydata.
>>
>> Is there a way to make the scaling transformation work as if each surface
>> is
>> moved relative to its normal? (I want an effect like an offset of the
>> shape)
>>
>> I know there is vtkwarpvector but I can not give its output to a plydata.
>> (or maybe I am wrong!)
>>
>> Any help?
>>
>> Thanks.
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>
>>
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsParadise at noware dot com

From cory.quammen at kitware.com  Fri Jan 26 10:20:39 2018
From: cory.quammen at kitware.com (Cory Quammen)
Date: Fri, 26 Jan 2018 10:20:39 -0500
Subject: [vtkusers] What does white models and blue models mean?
In-Reply-To: <1516948196499-0.post@n5.nabble.com>
References: <1516948196499-0.post@n5.nabble.com>
Message-ID: <CAB5Fpx7hQU04kxEx+Ef==_fGO3y3B0cMOQbpZc8=ZTLBy-TQnQ@mail.gmail.com>

My guess is that some of the surfaces are being colored by the default
color map and some are not. Perhaps some have active scalar arrays and
some do not.

To get consistent behavior, call vtkMapper::SetScalarVisibility (int),
0 to turn color mapping off and 1 to turn it on.

HTH,
Cory

On Fri, Jan 26, 2018 at 1:29 AM, landings <landinghere at 163.com> wrote:
> I use mapper and renderer with default settings, but some models are white
> and some are blue. These models all have point data with them. So what's the
> difference?
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From 312438111 at qq.com  Fri Jan 26 22:14:43 2018
From: 312438111 at qq.com (=?gb18030?B?0e7B+Lb5x+A=?=)
Date: Sat, 27 Jan 2018 11:14:43 +0800
Subject: [vtkusers] VTK helper
Message-ID: <tencent_07A06EB4DCC113239DD31FA1417A5B91BC0A@qq.com>

Hello ,

    I was troubled by a question.As we all known,VTK can display coronal,cross section and sagittal plane.Now I want both to show one of that three at the same qvtkwidget and display in different qvtkwidget.With right mouse button,I want to switch them according to willing.But the question is if I switch the image,the qvtkwidget which displaed the image previously was empty.In other word, vtkResliceImageViewer can only display coronal(cross section ,sagittal plane ) for once.I have to new a vtkResliceImageViewer,but if that the interaction was disappeared.I need your help.I will appreciate if you repay.Thanks.

  Julia
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From bebe0705 at colorado.edu  Sat Jan 27 15:11:36 2018
From: bebe0705 at colorado.edu (BBerco)
Date: Sat, 27 Jan 2018 13:11:36 -0700 (MST)
Subject: [vtkusers] vtkOpenGLSkybox and cubic texture map orientation
Message-ID: <1517083896189-0.post@n5.nabble.com>

I am trying to display a skybox environment using the vtkOpenGLSkybox class.

The documentation of vtkSkybox says that a texture cube must be provided. I
used  this one
<https://www.google.com/search?q=cubic+texture+file&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjiw7q09PjYAhVSyGMKHYKVAq8Q_AUICigB&biw=1280&bih=703#imgrc=-t5W2ikSKVWtQM:>  

I'm providing the skybox actor with a cube source. But s you can see below,
the texture is not properly mapped. 

Any advice?

<http://vtk.1045678.n5.nabble.com/file/t341520/Screen_Shot_2018-01-27_at_13.png> 


main.cpp:
*
#include <vtkSphereSource.h>
#include <vtkCubeSource.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkOpenGLSkybox.h>
#include <vtkImageReader2Factory.h>
#include <vtkTexture.h>
#include <vtkTransformTextureCoords.h>
#include <vtkImageReader2.h>

int main(int, char *[])
{



   // Read texture file
  vtkSmartPointer<vtkImageReader2Factory> readerFactory =
vtkSmartPointer<vtkImageReader2Factory>::New();
  vtkImageReader2 *imageReader = readerFactory
->CreateImageReader2("../map.png");
  
  imageReader->SetFileName("../map.png");

  // Create texture
  vtkSmartPointer<vtkTexture> texture =vtkSmartPointer<vtkTexture>::New();
  texture->SetInputConnection(imageReader->GetOutputPort());


  // Create a cube
  vtkSmartPointer<vtkCubeSource> skybox_source = 
  vtkSmartPointer<vtkCubeSource>::New();
  

  vtkSmartPointer<vtkPolyDataMapper> skybox_mapper = 
  vtkSmartPointer<vtkPolyDataMapper>::New();
  skybox_mapper->SetInputConnection(skybox_source->GetOutputPort());
  
  // Create the skybox
  vtkSmartPointer<vtkOpenGLSkybox> skybox =
vtkSmartPointer<vtkOpenGLSkybox>::New();

  skybox -> SetTexture(texture);
  skybox -> SetMapper(skybox_mapper);





  // Create a sphere
  vtkSmartPointer<vtkSphereSource> sphereSource = 
  vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(5.0);

  vtkSmartPointer<vtkPolyDataMapper> mapper = 
  vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(sphereSource->GetOutputPort());
  
  vtkSmartPointer<vtkActor> actor = 
  vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);

  vtkSmartPointer<vtkRenderer> renderer = 
  vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow = 
  vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 
  vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // renderer->AddActor(actor);
  renderer->AddActor(skybox);

  // renderer->SetBackground(.3, .6, .3); // Background color green

  renderWindow->Render();  
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}
*














--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ken.martin at kitware.com  Sat Jan 27 15:22:10 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Sat, 27 Jan 2018 15:22:10 -0500
Subject: [vtkusers] vtkOpenGLSkybox and cubic texture map orientation
In-Reply-To: <1517083896189-0.post@n5.nabble.com>
References: <1517083896189-0.post@n5.nabble.com>
Message-ID: <CANXz0SY8j_u5K52NX_C+rHhWRcENr2u4GkphkyMWj=rDvoiirg@mail.gmail.com>

Here is a rough example (maybe not 100% but close, I just grabbed the key
parts form TestCubeMap2.cxx. It uses 6 square textures and assembles them
into a cube map.

  const char* fpath[] =
    {
    "Data/skybox/posx.jpg",
    "Data/skybox/negx.jpg",
    "Data/skybox/posy.jpg",
    "Data/skybox/negy.jpg",
    "Data/skybox/posz.jpg",
    "Data/skybox/negz.jpg"
    };

  vtkNew<vtkTexture> texture;
  texture->CubeMapOn();
  texture->InterpolateOn();
  texture->RepeatOff();
  texture->EdgeClampOn();

  // mipmapping works on many systems but is not
  // core 3.2 for cube maps. VTK will silently
  // ignore it if it is not supported.
  texture->MipmapOn();

  for (int i = 0; i < 6; i++)
  {
    vtkNew<vtkJPEGReader> imgReader;
    imgReader->SetFileName(
      vtkTestUtilities::ExpandDataFileName(argc, argv, fpath[i]));
    vtkNew<vtkImageFlip> flip;
    flip->SetInputConnection(imgReader->GetOutputPort());
    flip->SetFilteredAxis(1); // flip y axis
    texture->SetInputConnection(i, flip->GetOutputPort(0));
  }

  vtkNew<vtkSkybox> world;
  world->SetTexture(texture);
  renderer->AddActor(world);


On Sat, Jan 27, 2018 at 3:11 PM, BBerco <bebe0705 at colorado.edu> wrote:

> I am trying to display a skybox environment using the vtkOpenGLSkybox
> class.
>
> The documentation of vtkSkybox says that a texture cube must be provided. I
> used  this one
> <https://www.google.com/search?q=cubic+texture+file&
> source=lnms&tbm=isch&sa=X&ved=0ahUKEwjiw7q09PjYAhVSyGMKHYKVA
> q8Q_AUICigB&biw=1280&bih=703#imgrc=-t5W2ikSKVWtQM:>
>
> I'm providing the skybox actor with a cube source. But s you can see below,
> the texture is not properly mapped.
>
> Any advice?
>
> <http://vtk.1045678.n5.nabble.com/file/t341520/Screen_Shot_
> 2018-01-27_at_13.png>
>
>
> main.cpp:
> *
> #include <vtkSphereSource.h>
> #include <vtkCubeSource.h>
> #include <vtkPolyData.h>
> #include <vtkSmartPointer.h>
> #include <vtkPolyDataMapper.h>
> #include <vtkActor.h>
> #include <vtkRenderWindow.h>
> #include <vtkRenderer.h>
> #include <vtkRenderWindowInteractor.h>
> #include <vtkOpenGLSkybox.h>
> #include <vtkImageReader2Factory.h>
> #include <vtkTexture.h>
> #include <vtkTransformTextureCoords.h>
> #include <vtkImageReader2.h>
>
> int main(int, char *[])
> {
>
>
>
>    // Read texture file
>   vtkSmartPointer<vtkImageReader2Factory> readerFactory =
> vtkSmartPointer<vtkImageReader2Factory>::New();
>   vtkImageReader2 *imageReader = readerFactory
> ->CreateImageReader2("../map.png");
>
>   imageReader->SetFileName("../map.png");
>
>   // Create texture
>   vtkSmartPointer<vtkTexture> texture =vtkSmartPointer<vtkTexture>::New();
>   texture->SetInputConnection(imageReader->GetOutputPort());
>
>
>   // Create a cube
>   vtkSmartPointer<vtkCubeSource> skybox_source =
>   vtkSmartPointer<vtkCubeSource>::New();
>
>
>   vtkSmartPointer<vtkPolyDataMapper> skybox_mapper =
>   vtkSmartPointer<vtkPolyDataMapper>::New();
>   skybox_mapper->SetInputConnection(skybox_source->GetOutputPort());
>
>   // Create the skybox
>   vtkSmartPointer<vtkOpenGLSkybox> skybox =
> vtkSmartPointer<vtkOpenGLSkybox>::New();
>
>   skybox -> SetTexture(texture);
>   skybox -> SetMapper(skybox_mapper);
>
>
>
>
>
>   // Create a sphere
>   vtkSmartPointer<vtkSphereSource> sphereSource =
>   vtkSmartPointer<vtkSphereSource>::New();
>   sphereSource->SetCenter(0.0, 0.0, 0.0);
>   sphereSource->SetRadius(5.0);
>
>   vtkSmartPointer<vtkPolyDataMapper> mapper =
>   vtkSmartPointer<vtkPolyDataMapper>::New();
>   mapper->SetInputConnection(sphereSource->GetOutputPort());
>
>   vtkSmartPointer<vtkActor> actor =
>   vtkSmartPointer<vtkActor>::New();
>   actor->SetMapper(mapper);
>
>   vtkSmartPointer<vtkRenderer> renderer =
>   vtkSmartPointer<vtkRenderer>::New();
>   vtkSmartPointer<vtkRenderWindow> renderWindow =
>   vtkSmartPointer<vtkRenderWindow>::New();
>   renderWindow->AddRenderer(renderer);
>   vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
>   vtkSmartPointer<vtkRenderWindowInteractor>::New();
>   renderWindowInteractor->SetRenderWindow(renderWindow);
>
>   // renderer->AddActor(actor);
>   renderer->AddActor(skybox);
>
>   // renderer->SetBackground(.3, .6, .3); // Background color green
>
>   renderWindow->Render();
>   renderWindowInteractor->Start();
>
>   return EXIT_SUCCESS;
> }
> *
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
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received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From bebe0705 at colorado.edu  Sat Jan 27 16:04:11 2018
From: bebe0705 at colorado.edu (BBerco)
Date: Sat, 27 Jan 2018 14:04:11 -0700 (MST)
Subject: [vtkusers] vtkOpenGLSkybox and cubic texture map orientation
In-Reply-To: <CANXz0SY8j_u5K52NX_C+rHhWRcENr2u4GkphkyMWj=rDvoiirg@mail.gmail.com>
References: <1517083896189-0.post@n5.nabble.com>
 <CANXz0SY8j_u5K52NX_C+rHhWRcENr2u4GkphkyMWj=rDvoiirg@mail.gmail.com>
Message-ID: <1517087051390-0.post@n5.nabble.com>

It works great, thanks! 

One thing though: it seems that vtkTestUtilities.h does not exist anymore?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From tamim.boubou at gmail.com  Sun Jan 28 04:03:58 2018
From: tamim.boubou at gmail.com (Tamim)
Date: Sun, 28 Jan 2018 02:03:58 -0700 (MST)
Subject: [vtkusers] QVTKWidget, pclVisulaizer,VTK
Message-ID: <1517130238995-0.post@n5.nabble.com>

Hello all ,

I've been trying to add pclVisulizer to QVTKWidget 

and to that window I want to add and interact with a  vtkboxWidget2


the code is something like this but it's crashing....any ideas ?

    pclVisualizer(new pcl::visualization::PCLVisualizer("PCL Visualizer"))

    qvtkWidget_pclViewer = new QVTKWidget;
    ui->splitterVertical->addWidget(qvtkWidget_pclViewer);
    qvtkWidget_pclViewer->SetRenderWindow(pclVisualizer->getRenderWindow());
    pclVisualizer->getRenderWindow()->AddRenderer(m_renderer_p);
    m_interactor_p = pclVisualizer->getRenderWindow()->GetInteractor();
    m_interactor_p->SetRenderWindow(m_renderwindow_p);


    double bounds_a[6]={0,4,0,4,0,4};
    vtkSmartPointer<vtkBoxWidget2> boxWidget =
vtkSmartPointer<vtkBoxWidget2>::New();
    boxWidget->SetInteractor(m_interactor_p);                       
    boxWidget->GetRepresentation()->SetPlaceFactor(1.25);          
    boxWidget->GetRepresentation()->PlaceWidget(bounds_a); 
    m_renderer_p->Render();
    qvtkwidget_pclViewer->Update();



any help would be great 
Thanks.




--
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From 278124177 at qq.com  Sun Jan 28 20:51:03 2018
From: 278124177 at qq.com (=?gb18030?B?zui3qM7ozOw=?=)
Date: Mon, 29 Jan 2018 09:51:03 +0800
Subject: [vtkusers] error build vtk8.01 for IOS
Message-ID: <tencent_F77C962F0C18B0EEBCD9DAFE6AFC1393C809@qq.com>

i tried to bulid vtk for ios  and meet may errors blow,  i hope to konw wich step i've done wrong thans.






Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/gcc 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/g++ 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Performing Test VTK_UNDEFINED_SYMBOLS_ALLOWED failed with the following output:
Change Dir: /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp


Run Build Command:"/usr/bin/make" "cmTC_1aa6f/fast"
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/cmTC_1aa6f.dir/build.make CMakeFiles/cmTC_1aa6f.dir/build
Building C object CMakeFiles/cmTC_1aa6f.dir/CheckSymbolExists.c.o
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc   -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk   -o CMakeFiles/cmTC_1aa6f.dir/CheckSymbolExists.c.o   -c /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_1aa6f
/Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmTC_1aa6f.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc  -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk -Wl,-headerpad_max_install_names    CMakeFiles/cmTC_1aa6f.dir/CheckSymbolExists.c.o  -o cmTC_1aa6f 
ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)


Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/gcc 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/g++ 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libc++.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Performing Test VTK_UNDEFINED_SYMBOLS_ALLOWED failed with the following output:
Change Dir: /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp


Run Build Command:"/usr/bin/make" "cmTC_54f13/fast"
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/cmTC_54f13.dir/build.make CMakeFiles/cmTC_54f13.dir/build
Building C object CMakeFiles/cmTC_54f13.dir/CheckSymbolExists.c.o
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc   -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk   -o CMakeFiles/cmTC_54f13.dir/CheckSymbolExists.c.o   -c /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_54f13
/Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmTC_54f13.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc  -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk -Wl,-headerpad_max_install_names    CMakeFiles/cmTC_54f13.dir/CheckSymbolExists.c.o  -o cmTC_54f13 
ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)


Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/gcc 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/g++ 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Performing Test VTK_UNDEFINED_SYMBOLS_ALLOWED failed with the following output:
Change Dir: /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp


Run Build Command:"/usr/bin/make" "cmTC_3323b/fast"
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/cmTC_3323b.dir/build.make CMakeFiles/cmTC_3323b.dir/build
Building C object CMakeFiles/cmTC_3323b.dir/CheckSymbolExists.c.o
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc   -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk   -o CMakeFiles/cmTC_3323b.dir/CheckSymbolExists.c.o   -c /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_3323b
/Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmTC_3323b.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc  -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS10.3.sdk -Wl,-headerpad_max_install_names    CMakeFiles/cmTC_3323b.dir/CheckSymbolExists.c.o  -o cmTC_3323b 
ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)


Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/gcc 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libSystem.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler: /Applications/Xcode.app/Contents/Developer/usr/bin/g++ 
Build flags: ;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode;-miphoneos-version-min=10.3;-fvisibility=hidden;-fvisibility-inlines-hidden;-fembed-bitcode
Id flags:  


The output was:
1
ld: building for iOS simulator, but linking against dylib built for OSX, file '/usr/lib/libc++.dylib' for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)




Performing Test VTK_UNDEFINED_SYMBOLS_ALLOWED failed with the following output:
Change Dir: /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp


Run Build Command:"/usr/bin/make" "cmTC_1b878/fast"
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/cmTC_1b878.dir/build.make CMakeFiles/cmTC_1b878.dir/build
Building C object CMakeFiles/cmTC_1b878.dir/CheckSymbolExists.c.o
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc   -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk   -o CMakeFiles/cmTC_1b878.dir/CheckSymbolExists.c.o   -c /Users/cc/Documents/work/vtk/VTK-8.1.0-BIN/CMakeExternals/Build/vtk-ios-device-arm64/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_1b878
/Applications/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmTC_1b878.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/usr/bin/gcc  -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode -miphoneos-version-min=10.3 -fvisibility=hidden -fvisibility-inlines-hidden -fembed-bitcode   -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.2.sdk -Wl,-headerpad_max_install_names    CMakeFiles/cmTC_1b878.dir/CheckSymbolExists.c.o  -o cmTC_1b878 
ld: warning: -headerpad_max_install_names is ignored when used with -bitcode_bundle (Xcode setting ENABLE_BITCODE=YES)
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From 312438111 at qq.com  Sun Jan 28 21:12:01 2018
From: 312438111 at qq.com (=?gb18030?B?0e7B+Lb5x+A=?=)
Date: Mon, 29 Jan 2018 10:12:01 +0800
Subject: [vtkusers] VTK show dicom
Message-ID: <tencent_CD2031D083A3017AC39074A23EB7B8C3F30A@qq.com>

Hello ,

    I was troubled by a question.As we all known,VTK can display coronal,cross section and sagittal plane.Now I want both to show one of that three at the same qvtkwidget and display in different qvtkwidget.With right mouse button,I want to switch them according to willing.But the question is if I switch the DICOM image,the qvtkwidget which displayed the DICOM image previously was empty.In other word, vtkResliceImageViewer can only display coronal(cross section ,sagittal plane ) for once.I have to new a vtkResliceImageViewer,but if that the interaction was disappeared.I need your help.

     I will appreciate if you repay.Thanks.

  Julia
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From bebe0705 at colorado.edu  Sun Jan 28 23:08:14 2018
From: bebe0705 at colorado.edu (BBerco)
Date: Sun, 28 Jan 2018 21:08:14 -0700 (MST)
Subject: [vtkusers] Shadow casting: vtkFrameBufferObject.h not found in
 example code
Message-ID: <1517198894770-0.post@n5.nabble.com>

I am developing an app where I am rendering an asteroid and a landing
trajectory. I was wondering how I could enable "self-shadowing" so as to
have "hills" on the asteroid casting a shadow behind them.

I tried to run what seems to be the related  vtk example <http://
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Shadows>  , but the
build fails as *vtkFrameBufferObject.h* could not be found.

Is there a different approach than the one presented in the example? I
imagine that creating a light source not aligned with the camera axis would
not be sufficient.

Thanks in advance!





--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From alessandro.volz at gmail.com  Mon Jan 29 04:42:48 2018
From: alessandro.volz at gmail.com (Alessandro Volz)
Date: Mon, 29 Jan 2018 10:42:48 +0100
Subject: [vtkusers] vtkVolumeRayCast* gone in VTK 8.1.0
Message-ID: <3305169A-7546-4A9A-B9A0-1AD72B5D28C5@gmail.com>

Hi,

I am switching a project from VTK 8.0.1 to 8.1.0, and noticed that the vtkVolumeRayCast* classes are gone. They are used in this project, so I'm looking for a replacement.

I found out they've been deprecated a couple years ago:
https://gitlab.kitware.com/vtk/vtk/commit/bc6c71ea79dc7bd7523b81aa1d1b5e6a98d57daf

Any suggestions as to how to achieve the same result with a different pipeline?

Best,

Alessandro

From majid.msadeghi at yahoo.com  Mon Jan 29 04:55:13 2018
From: majid.msadeghi at yahoo.com (Majid Mohammad sadeghi)
Date: Mon, 29 Jan 2018 09:55:13 +0000 (UTC)
Subject: [vtkusers] scaling polydata
In-Reply-To: <CADZJ4hNVS3UaVm1TFtiSavZMWnY3dt0PmPUcCNQxcHkhApqqOw@mail.gmail.com>
References: <1537095886.134454.1516879679752.ref@mail.yahoo.com>
 <1537095886.134454.1516879679752@mail.yahoo.com>
 <CAB5Fpx7g_uo2YqPxemb+r-womumWinyb-7Kbe55A0xTVBO3A1w@mail.gmail.com>
 <872202210.850986.1516959039634@mail.yahoo.com>
 <CADZJ4hNVS3UaVm1TFtiSavZMWnY3dt0PmPUcCNQxcHkhApqqOw@mail.gmail.com>
Message-ID: <1926133894.2542074.1517219713258@mail.yahoo.com>

Dear Bill,
Thanks for your time.

Ofcourse I tried "warped_poly=warp->GetOutput();" before sending the email. It does not work!? It gives the following error:
error C2679: binary '=': no operator found which takes a right-hand operand of type 'vtkPointSet *' (or there is no acceptable conversion)
Since Cory told "vtkWarpVector should produce a vtkPolyData" I thought "warped_poly = warp;" might work. Ok I was wrong.

There should be sth else going on here. As in the same example in the new site, still vtksmartpointer is not used for this case. There should be a reason for that:
https://lorensen.github.io/VTKExamples/site/Cxx/PolyData/DataSetSurfaceFilter/
 vtkPolyData* polydata = surfaceFilter->GetOutput();
I finally could get the data using vtkDataSetSurfaceFilter as Cory said. But still I dont undersatand the problem with direct polydata and why not smart pointer?

Any help?
Thanks.

 

    On Friday, January 26, 2018, 4:50:22 PM GMT+2, Bill Lorensen <bill.lorensen at gmail.com> wrote:  
 
 1. The error message tells you what is wrong. You need:
warped_poly=warp->GetOutput();

2. Please go to this site:
https://lorensen.github.io/VTKExamples/site/ for examples. The wiki
site is not supported any more

Try looking at the VTK Book(which is free). https://www.vtk.org/vtk-textbook/

And the examples from the book:
https://lorensen.github.io/VTKExamples/site/VTKBookFigures/


On Fri, Jan 26, 2018 at 1:30 AM, Majid Mohammad sadeghi via vtkusers
<vtkusers at vtk.org> wrote:
> I have 2 questions:
>
> 1.Why is this compile error happening?
>
>? ? vtkSmartPointer<vtkPolyDataNormals> normals
> =vtkSmartPointer<vtkPolyDataNormals>::New();
>? ? normals->SetInputData(notSmoothedRotatedX);
>? ? normals->SplittingOff();
>
>? ? vtkSmartPointer<vtkWarpVector> warp
> =vtkSmartPointer<vtkWarpVector>::New();
>? ? warp->SetInputConnection(normals->GetOutputPort());
>? ? warp->SetInputArrayToProcess(0, 0,
> 0,vtkDataObject::FIELD_ASSOCIATION_POINTS,vtkDataSetAttributes::NORMALS);
>? ? warp->SetScaleFactor(1.2);
>? ? warp->Update();
>
>? ? vtkSmartPointer<vtkPolyData> warped_poly =
> vtkSmartPointer<vtkPolyData>::New();
>? ? warped_poly = warp;
>
> error C2664: 'vtkPolyData *vtkSmartPointer<vtkPolyData>::CheckType(T *)':
> cannot convert argument 1 from 'vtkWarpVector *' to 'vtkPolyData *'
>
>
> 2. I wonder why sometimes in VTK a vtkpolydata is created without using a
> smart pointer?
>
> Like in this example:
>
> https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DataSetSurfaceFilter
>
> Thanks.
>
>
> On Thursday, January 25, 2018, 2:21:03 PM GMT+2, Cory Quammen
> <cory.quammen at kitware.com> wrote:
>
>
> vtkWarpVector should produce a vtkPolyData. If it doesn't you can
> always use vtkDataSetSurface to get a vtkPolyData surface from the
> output of vtkWarpVector.
>
> - Cory
>
> On Thu, Jan 25, 2018 at 6:27 AM, Majid Mohammad sadeghi via vtkusers
> <vtkusers at vtk.org> wrote:
>> Dear All,
>>
>> When I scale a polydata by a uniform scale like: (2,2,2) , the data aslo
>> moves a bit towards a direction depending on where the origin is located
>> in
>> relation to the polydata.
>>
>> Is there a way to make the scaling transformation work as if each surface
>> is
>> moved relative to its normal? (I want an effect like an offset of the
>> shape)
>>
>> I know there is vtkwarpvector but I can not give its output to a plydata.
>> (or maybe I am wrong!)
>>
>> Any help?
>>
>> Thanks.
>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the VTK FAQ at:
>> http://www.vtk.org/Wiki/VTK_FAQ
>>
>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>
>> Follow this link to subscribe/unsubscribe:
>> https://vtk.org/mailman/listinfo/vtkusers
>
>>
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsParadise at noware dot com
  
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From sankhesh.jhaveri at kitware.com  Mon Jan 29 09:11:49 2018
From: sankhesh.jhaveri at kitware.com (Sankhesh Jhaveri)
Date: Mon, 29 Jan 2018 14:11:49 +0000
Subject: [vtkusers] vtkVolumeRayCast* gone in VTK 8.1.0
In-Reply-To: <3305169A-7546-4A9A-B9A0-1AD72B5D28C5@gmail.com>
References: <3305169A-7546-4A9A-B9A0-1AD72B5D28C5@gmail.com>
Message-ID: <CAEcL5t5Msg6rWy7pXjT3hEwkHg8UAbg98Kcb2aAzWdgsa_y+Sg@mail.gmail.com>

Hi Alessandro,

Those classes had been deprecated since VTK 7.0. They were removed in
version 8.1.0

The modern approach to volume rendering in VTK is using the
vtkGPUVolumeRayCastMapper
<https://www.vtk.org/doc/nightly/html/classvtkGPUVolumeRayCastMapper.html>.
There are some examples
<https://lorensen.github.io/VTKExamples/site/Cxx/VolumeRendering/SimpleRayCast/>
as well as tests
<https://www.vtk.org/doc/nightly/html/c2_vtk_t_7.html#c2_vtk_t_vtkGPUVolumeRayCastMapper>
that show how to set it up.

Hope this helps.

Best,
Sankhesh
?

On Mon, Jan 29, 2018 at 4:42 AM Alessandro Volz <alessandro.volz at gmail.com>
wrote:

> Hi,
>
> I am switching a project from VTK 8.0.1 to 8.1.0, and noticed that the
> vtkVolumeRayCast* classes are gone. They are used in this project, so I'm
> looking for a replacement.
>
> I found out they've been deprecated a couple years ago:
>
> https://gitlab.kitware.com/vtk/vtk/commit/bc6c71ea79dc7bd7523b81aa1d1b5e6a98d57daf
>
> Any suggestions as to how to achieve the same result with a different
> pipeline?
>
> Best,
>
> Alessandro
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
-- 
Sankhesh Jhaveri *Sr. Research & Development Engineer* | Kitware
<http://www.kitware.com/> | (518) 881-4417
?
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From ashahrior.91994 at gmail.com  Mon Jan 29 09:49:27 2018
From: ashahrior.91994 at gmail.com (Ashef Shahrior)
Date: Mon, 29 Jan 2018 20:49:27 +0600
Subject: [vtkusers] Beginners Guideline Help
Message-ID: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>

Hello, I am a complete beginner with VTK. My project supervisor in the
department has assigned me a project on VTK and ITK. But I am not getting
anywhere since I don't have a clue on how to start off with VTK. Can anyone
please help me with step by step procedures about how to learn VTK
effectively? Thanks in advance.
PS. I have programming experience in C, C++ and Java.
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From cory.quammen at kitware.com  Mon Jan 29 09:53:49 2018
From: cory.quammen at kitware.com (Cory Quammen)
Date: Mon, 29 Jan 2018 09:53:49 -0500
Subject: [vtkusers] Beginners Guideline Help
In-Reply-To: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>
References: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>
Message-ID: <CAB5Fpx6DUreNaC0y28YRSe24ZjZSrBy0kY2i_-ZJoCh_97O7nQ@mail.gmail.com>

Hi Ashef,

Welcome to VTK. To get started, please see the VTK textbook:

https://www.vtk.org/vtk-textbook/

There is a PDF version you can download for free.

After that, the examples are probably your best bet for gaining
experience with VTK:

https://lorensen.github.io/VTKExamples/site/

Good luck getting started with your project.

Best regards,
Cory

On Mon, Jan 29, 2018 at 9:49 AM, Ashef Shahrior
<ashahrior.91994 at gmail.com> wrote:
> Hello, I am a complete beginner with VTK. My project supervisor in the
> department has assigned me a project on VTK and ITK. But I am not getting
> anywhere since I don't have a clue on how to start off with VTK. Can anyone
> please help me with step by step procedures about how to learn VTK
> effectively? Thanks in advance.
> PS. I have programming experience in C, C++ and Java.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.

From ashahrior.91994 at gmail.com  Mon Jan 29 09:56:49 2018
From: ashahrior.91994 at gmail.com (Ashef Shahrior)
Date: Mon, 29 Jan 2018 20:56:49 +0600
Subject: [vtkusers] Beginners Guideline Help
In-Reply-To: <CAB5Fpx6DUreNaC0y28YRSe24ZjZSrBy0kY2i_-ZJoCh_97O7nQ@mail.gmail.com>
References: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>
 <CAB5Fpx6DUreNaC0y28YRSe24ZjZSrBy0kY2i_-ZJoCh_97O7nQ@mail.gmail.com>
Message-ID: <CAB8nWDy1GmkSnUHZ6D2PsHiV-tWyebOJeKW6Z=60w_u5-kSSzA@mail.gmail.com>

This is great, thank you so much!

On Jan 29, 2018 8:53 PM, "Cory Quammen" <cory.quammen at kitware.com> wrote:

> Hi Ashef,
>
> Welcome to VTK. To get started, please see the VTK textbook:
>
> https://www.vtk.org/vtk-textbook/
>
> There is a PDF version you can download for free.
>
> After that, the examples are probably your best bet for gaining
> experience with VTK:
>
> https://lorensen.github.io/VTKExamples/site/
>
> Good luck getting started with your project.
>
> Best regards,
> Cory
>
> On Mon, Jan 29, 2018 at 9:49 AM, Ashef Shahrior
> <ashahrior.91994 at gmail.com> wrote:
> > Hello, I am a complete beginner with VTK. My project supervisor in the
> > department has assigned me a project on VTK and ITK. But I am not getting
> > anywhere since I don't have a clue on how to start off with VTK. Can
> anyone
> > please help me with step by step procedures about how to learn VTK
> > effectively? Thanks in advance.
> > PS. I have programming experience in C, C++ and Java.
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Search the list archives at: http://markmail.org/search/?q=vtkusers
> >
> > Follow this link to subscribe/unsubscribe:
> > https://vtk.org/mailman/listinfo/vtkusers
> >
>
>
>
> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
>
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From dan.lipsa at kitware.com  Mon Jan 29 09:59:16 2018
From: dan.lipsa at kitware.com (Dan Lipsa)
Date: Mon, 29 Jan 2018 09:59:16 -0500
Subject: [vtkusers] Beginners Guideline Help
In-Reply-To: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>
References: <CAB8nWDzXET7iTxF0Bz7nBPt_nYFWpE=rfmHz_kk2MDcY+NkkXg@mail.gmail.com>
Message-ID: <CADwGrVrH7_SSa35C+WKWg=NHvwXAVA3gxS1CTe1uYCpXKKhcSw@mail.gmail.com>

Ashef,
You can also try VTK Users guide
https://www.vtk.org/vtk-users-guide/

for a guide with less emphasis on visualization algorithms and
more on how to use VTK.


On Mon, Jan 29, 2018 at 9:49 AM, Ashef Shahrior <ashahrior.91994 at gmail.com>
wrote:

> Hello, I am a complete beginner with VTK. My project supervisor in the
> department has assigned me a project on VTK and ITK. But I am not getting
> anywhere since I don't have a clue on how to start off with VTK. Can anyone
> please help me with step by step procedures about how to learn VTK
> effectively? Thanks in advance.
> PS. I have programming experience in C, C++ and Java.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>
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From bebe0705 at colorado.edu  Mon Jan 29 11:23:09 2018
From: bebe0705 at colorado.edu (BBerco)
Date: Mon, 29 Jan 2018 09:23:09 -0700 (MST)
Subject: [vtkusers] Shadow casting: vtkFrameBufferObject.h not found in
 example code
In-Reply-To: <1517198894770-0.post@n5.nabble.com>
References: <1517198894770-0.post@n5.nabble.com>
Message-ID: <1517242989552-0.post@n5.nabble.com>

After a bit more digging, it seems that vtkFrameBufferObject.h was not copied
to /usr/local/include/vtk-8.1/ upon running *make install* although it was
present in the tarball. Is there a reason for this, like platform dependence
or something of the kind?



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ken.martin at kitware.com  Mon Jan 29 11:38:19 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Mon, 29 Jan 2018 11:38:19 -0500
Subject: [vtkusers] Shadow casting: vtkFrameBufferObject.h not found in
 example code
In-Reply-To: <1517242989552-0.post@n5.nabble.com>
References: <1517198894770-0.post@n5.nabble.com>
 <1517242989552-0.post@n5.nabble.com>
Message-ID: <CANXz0SYOjJsC2MnOj6SybC2aE34PE3TCJPj3ajMzx3-24QJmtQ@mail.gmail.com>

An example of shadows

https://gitlab.kitware.com/vtk/vtk/blob/master/Rendering/OpenGL2/Testing/Cxx/TestShadowMapPass.cxx

vtkFrameBufferObject.h is from the old rendering engine, probably not
installed as you probably built the new rendering engine.


On Mon, Jan 29, 2018 at 11:23 AM, BBerco <bebe0705 at colorado.edu> wrote:

> After a bit more digging, it seems that vtkFrameBufferObject.h was not
> copied
> to /usr/local/include/vtk-8.1/ upon running *make install* although it was
> present in the tarball. Is there a reason for this, like platform
> dependence
> or something of the kind?
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
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From stephen.langer at nist.gov  Mon Jan 29 15:08:01 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Mon, 29 Jan 2018 20:08:01 +0000
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa and
 macports
Message-ID: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>

Hi --

I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd been building vtk with Cocoa because with X11 vtk was complaining that it couldn't find OpenGL version 3.2 or later.  I'm using macports to install OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.  

I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since vtk gets the version number from glew.  I tried tracing though the process of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(), but found the glew code to be amazingly opaque.   All I know for sure is that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are empty, but the glew source code *does* set them, in glewContextInit() in glew.c.  I don't know what it sets them *to*, though.

I'm using the latest vtk from git master, but the problem occurred with released versions too.

I don't know if this is a vtk problem or a macports problem or a mesa problem, but I didn't get a helpful answer from the macports list.  Any advice would be much appreciated. 
 
Thanks.

 -- Steve




From ken.martin at kitware.com  Mon Jan 29 15:21:42 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Mon, 29 Jan 2018 15:21:42 -0500
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
Message-ID: <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>

I'm pretty sure OSX comes with OpenGL and OSX always provides at least
OpenGL 3.2 as of any version of OSX in the past few years. I'm not an OSX
wizard, but generally default vtk builds straight out of the box last I
checked. Maybe try a clean VTK build using all the defaults and see if that
works.

On Mon, Jan 29, 2018 at 3:08 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> Hi --
>
> I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd
> been building vtk with Cocoa because with X11 vtk was complaining that it
> couldn't find OpenGL version 3.2 or later.  I'm using macports to install
> OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.
>
> I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since
> vtk gets the version number from glew.  I tried tracing though the process
> of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(),
> but found the glew code to be amazingly opaque.   All I know for sure is
> that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are
> empty, but the glew source code *does* set them, in glewContextInit() in
> glew.c.  I don't know what it sets them *to*, though.
>
> I'm using the latest vtk from git master, but the problem occurred with
> released versions too.
>
> I don't know if this is a vtk problem or a macports problem or a mesa
> problem, but I didn't get a helpful answer from the macports list.  Any
> advice would be much appreciated.
>
> Thanks.
>
>  -- Steve
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
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From ben.boeckel at kitware.com  Mon Jan 29 15:28:01 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Mon, 29 Jan 2018 15:28:01 -0500
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
Message-ID: <20180129202801.GA19808@megas.kitware.com>

On Mon, Jan 29, 2018 at 20:08:01 +0000, Langer, Stephen A. (Fed) wrote:
> I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW,
> since vtk gets the version number from glew.  I tried tracing though
> the process of getting the version number, starting with
> vtkOpenGLRenderWindow::OpenGLInitContext(), but found the glew code to
> be amazingly opaque.   All I know for sure is that in vtk's
> OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are empty,
> but the glew source code *does* set them, in glewContextInit() in
> glew.c.  I don't know what it sets them *to*, though.

Was a profile requested? If no profile is requested, Mesa gives back a
Compat context which it doesn't support beyond 2.1 (its 3.x contexts
don't support some Compat functionality). VTK should be requesting a
Core profile which will get the right context.

You can force Mesa to give a Compat profile of a higher version by
setting the MESA_GL_OVERRIDE environment variable to 3.2 or the like.

--Ben

From stephen.langer at nist.gov  Mon Jan 29 22:06:00 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 30 Jan 2018 03:06:00 +0000
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>
Message-ID: <4B3E5AB5-14C9-4C99-8469-874F10BEDA43@nist.gov>

OSX does come with OpenGL, but not the X11 parts of it.  There's no glx.h in /System/Library/Frameworks/OpenGL.framework/Headers, and the libraries don't define glXChooseFBConfig and other symbols used by VTK.

Just firing up ccmake and not making any changes to the configuration gives VTK_USE_X=OFF and VTK_USE_COCOA=ON, but I want them the other way around.  Changing those two settings but nothing else makes it try to link to the OpenGL.framework, and the build fails because the framework doesn't support X11.   Pointing OPENGL_INCLUDE_DIR, OPENGL_gl_LIBRARY, and OPENGL_glu_LIBRARY to the mesa components lets VTK build, but it gives a warning at run time when it checks the OpenGL version, and then crashes.

The reason for doing this is that many (most?) ports in macports use X11 instead of Cocoa/Quartz, and it's difficult to mix the two.  Our software will be easier to distribute if it can be built to use either X11 or Cocoa.   Also, we're using gtk2, and it works better in X11.  (Someday we'll upgrade to gtk3?)

-- Steve

From: Ken Martin <ken.martin at kitware.com>
Date: Monday, January 29, 2018 at 3:21 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
Subject: Re: [vtkusers] vtk getting wrong OpenGL version number from mesa and macports

I'm pretty sure OSX comes with OpenGL and OSX always provides at least OpenGL 3.2 as of any version of OSX in the past few years. I'm not an OSX wizard, but generally default vtk builds straight out of the box last I checked. Maybe try a clean VTK build using all the defaults and see if that works.

On Mon, Jan 29, 2018 at 3:08 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd been building vtk with Cocoa because with X11 vtk was complaining that it couldn't find OpenGL version 3.2 or later.  I'm using macports to install OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.

I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since vtk gets the version number from glew.  I tried tracing though the process of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(), but found the glew code to be amazingly opaque.   All I know for sure is that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are empty, but the glew source code *does* set them, in glewContextInit() in glew.c.  I don't know what it sets them *to*, though.

I'm using the latest vtk from git master, but the problem occurred with released versions too.

I don't know if this is a vtk problem or a macports problem or a mesa problem, but I didn't get a helpful answer from the macports list.  Any advice would be much appreciated.

Thanks.

 -- Steve



_______________________________________________
Powered by www.kitware.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.kitware.com&data=02%7C01%7Cstephen.langer%40nist.gov%7Cd81105051dfb4459448608d56755ea88%7C2ab5d82fd8fa4797a93e054655c61dec%7C1%7C0%7C636528541064005648&sdata=F2wPxiex5QUmuUGkeVEarcyg9IaVHvm3MFtXlOuqzy4%3D&reserved=0>

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--
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and legally privileged information, and it is intended only for the use of the addressee.  Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. If you received this communication in error please notify us immediately and destroy the original message.  Thank you.
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From david.gobbi at gmail.com  Mon Jan 29 22:33:57 2018
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 29 Jan 2018 20:33:57 -0700
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <4B3E5AB5-14C9-4C99-8469-874F10BEDA43@nist.gov>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>
 <4B3E5AB5-14C9-4C99-8469-874F10BEDA43@nist.gov>
Message-ID: <CANwS1=FOX9seVDnRK9z73q2XQX6HMFq+niEGgVcN7Q=rkHXT2A@mail.gmail.com>

Hi Steve,

If you install xquartz, you should see glx.h in /usr/X11R6/include.  On OS
X, X11 always had its own GL headers and libraries inside
/usr/X11R6/include and /usr/X11R6/lib.  You'd definitely have to link to
those libraries, rather than linking to OpenGL.framework.

I remember that VTK-X11 on OS X was a well-supported configuration back in
2005 or so.

 - David


On Mon, Jan 29, 2018 at 8:06 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> OSX does come with OpenGL, but not the X11 parts of it.  There's no glx.h
> in /System/Library/Frameworks/OpenGL.framework/Headers, and the libraries
> don't define glXChooseFBConfig and other symbols used by VTK.
>
>
>
> Just firing up ccmake and not making any changes to the configuration
> gives VTK_USE_X=OFF and VTK_USE_COCOA=ON, but I want them the other way
> around.  Changing those two settings but nothing else makes it try to link
> to the OpenGL.framework, and the build fails because the framework doesn't
> support X11.   Pointing OPENGL_INCLUDE_DIR, OPENGL_gl_LIBRARY, and
> OPENGL_glu_LIBRARY to the mesa components lets VTK build, but it gives a
> warning at run time when it checks the OpenGL version, and then crashes.
>
>
>
> The reason for doing this is that many (most?) ports in macports use X11
> instead of Cocoa/Quartz, and it's difficult to mix the two.  Our software
> will be easier to distribute if it can be built to use either X11 or
> Cocoa.   Also, we're using gtk2, and it works better in X11.  (Someday
> we'll upgrade to gtk3?)
>
>
>
> -- Steve
>
>
>
> *From: *Ken Martin <ken.martin at kitware.com>
> *Date: *Monday, January 29, 2018 at 3:21 PM
> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
> *Subject: *Re: [vtkusers] vtk getting wrong OpenGL version number from
> mesa and macports
>
>
>
> I'm pretty sure OSX comes with OpenGL and OSX always provides at least
> OpenGL 3.2 as of any version of OSX in the past few years. I'm not an OSX
> wizard, but generally default vtk builds straight out of the box last I
> checked. Maybe try a clean VTK build using all the defaults and see if that
> works.
>
>
>
> On Mon, Jan 29, 2018 at 3:08 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
> Hi --
>
> I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd
> been building vtk with Cocoa because with X11 vtk was complaining that it
> couldn't find OpenGL version 3.2 or later.  I'm using macports to install
> OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.
>
> I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since
> vtk gets the version number from glew.  I tried tracing though the process
> of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(),
> but found the glew code to be amazingly opaque.   All I know for sure is
> that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are
> empty, but the glew source code *does* set them, in glewContextInit() in
> glew.c.  I don't know what it sets them *to*, though.
>
> I'm using the latest vtk from git master, but the problem occurred with
> released versions too.
>
> I don't know if this is a vtk problem or a macports problem or a mesa
> problem, but I didn't get a helpful answer from the macports list.  Any
> advice would be much appreciated.
>
> Thanks.
>
>  -- Steve
>
>
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From david.gobbi at gmail.com  Mon Jan 29 23:15:34 2018
From: david.gobbi at gmail.com (David Gobbi)
Date: Mon, 29 Jan 2018 21:15:34 -0700
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <CANwS1=FOX9seVDnRK9z73q2XQX6HMFq+niEGgVcN7Q=rkHXT2A@mail.gmail.com>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>
 <4B3E5AB5-14C9-4C99-8469-874F10BEDA43@nist.gov>
 <CANwS1=FOX9seVDnRK9z73q2XQX6HMFq+niEGgVcN7Q=rkHXT2A@mail.gmail.com>
Message-ID: <CANwS1=HhRkTMjoTadToAyiO+Zt5m66G+Lj=DFn1zsksGYZGxnA@mail.gmail.com>

Hmm, I just checked and /usr/X11R6 is just a symlink to /opt/X11, so the
latter is probably the better place to look.

On Mon, Jan 29, 2018 at 8:33 PM, David Gobbi <david.gobbi at gmail.com> wrote:

> Hi Steve,
>
> If you install xquartz, you should see glx.h in /usr/X11R6/include.  On OS
> X, X11 always had its own GL headers and libraries inside
> /usr/X11R6/include and /usr/X11R6/lib.  You'd definitely have to link to
> those libraries, rather than linking to OpenGL.framework.
>
> I remember that VTK-X11 on OS X was a well-supported configuration back in
> 2005 or so.
>
>  - David
>
>
> On Mon, Jan 29, 2018 at 8:06 PM, Langer, Stephen A. (Fed) <
> stephen.langer at nist.gov> wrote:
>
>> OSX does come with OpenGL, but not the X11 parts of it.  There's no glx.h
>> in /System/Library/Frameworks/OpenGL.framework/Headers, and the
>> libraries don't define glXChooseFBConfig and other symbols used by VTK.
>>
>>
>>
>> Just firing up ccmake and not making any changes to the configuration
>> gives VTK_USE_X=OFF and VTK_USE_COCOA=ON, but I want them the other way
>> around.  Changing those two settings but nothing else makes it try to link
>> to the OpenGL.framework, and the build fails because the framework doesn't
>> support X11.   Pointing OPENGL_INCLUDE_DIR, OPENGL_gl_LIBRARY, and
>> OPENGL_glu_LIBRARY to the mesa components lets VTK build, but it gives a
>> warning at run time when it checks the OpenGL version, and then crashes.
>>
>>
>>
>> The reason for doing this is that many (most?) ports in macports use X11
>> instead of Cocoa/Quartz, and it's difficult to mix the two.  Our software
>> will be easier to distribute if it can be built to use either X11 or
>> Cocoa.   Also, we're using gtk2, and it works better in X11.  (Someday
>> we'll upgrade to gtk3?)
>>
>>
>>
>> -- Steve
>>
>>
>>
>> *From: *Ken Martin <ken.martin at kitware.com>
>> *Date: *Monday, January 29, 2018 at 3:21 PM
>> *To: *"Langer, Stephen A. (Fed)" <stephen.langer at nist.gov>
>> *Cc: *"vtkusers at vtk.org" <vtkusers at vtk.org>
>> *Subject: *Re: [vtkusers] vtk getting wrong OpenGL version number from
>> mesa and macports
>>
>>
>>
>> I'm pretty sure OSX comes with OpenGL and OSX always provides at least
>> OpenGL 3.2 as of any version of OSX in the past few years. I'm not an OSX
>> wizard, but generally default vtk builds straight out of the box last I
>> checked. Maybe try a clean VTK build using all the defaults and see if that
>> works.
>>
>>
>>
>> On Mon, Jan 29, 2018 at 3:08 PM, Langer, Stephen A. (Fed) <
>> stephen.langer at nist.gov> wrote:
>>
>> Hi --
>>
>> I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd
>> been building vtk with Cocoa because with X11 vtk was complaining that it
>> couldn't find OpenGL version 3.2 or later.  I'm using macports to install
>> OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.
>>
>> I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since
>> vtk gets the version number from glew.  I tried tracing though the process
>> of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(),
>> but found the glew code to be amazingly opaque.   All I know for sure is
>> that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are
>> empty, but the glew source code *does* set them, in glewContextInit() in
>> glew.c.  I don't know what it sets them *to*, though.
>>
>> I'm using the latest vtk from git master, but the problem occurred with
>> released versions too.
>>
>> I don't know if this is a vtk problem or a macports problem or a mesa
>> problem, but I didn't get a helpful answer from the macports list.  Any
>> advice would be much appreciated.
>>
>> Thanks.
>>
>>  -- Steve
>>
>>
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From simon.esneault at gmail.com  Tue Jan 30 04:17:09 2018
From: simon.esneault at gmail.com (Simon Esneault)
Date: Tue, 30 Jan 2018 10:17:09 +0100
Subject: [vtkusers] Blue artefact on complex scene with VTK 8.1 + QVTKWidget
 + OSX and Intel chipset
Message-ID: <CAC9gB0CZhDtOvBYiiC-6oKFciEf4_g6KPsO=dzo6V1TWtcJ8Sg@mail.gmail.com>

Hello community

After the migration to VTK 8.1 (from VTK 7.1), we are seing strange blue
artefact in one of our scene as it can be seen in the following snapshots.
And I'm having real hard time debugging that ...

https://pasteboard.co/H5irkgl.png
https://pasteboard.co/H5irBQ4.png

The context is as follow :
- Qt 5.3.2 on OSX  and Intel chipset (Iris or HD > 4000)
- VTK 8.1
- 3 layered vtkRenderer in one vtkRenderWindow in a QVTKWidget
- GPUVolumeRendering on the first layer, some vtkActor/Polydata on the
second layer, and some vtkActor2D/vtkTextActor on the third layer.

This bug only appears after the view has been "reparented" (the user can
choose different "layout") and is triggered when we add a new vtkPolyData
to be rendered. If the user move the scene, all goes back to normal. It
look like we're seing some garbage blue buffer, but I have no clue where to
look at...

Anyone have experienced something like this ?

Thanks a lot

PS: I know QVTKWidget is deprecated and we should move to QVTKOpenGLWidget,
but our app is quite big and moving to Qt >= Qt 5.4 has some other
implication so that is not solution for now ...

-- 
------------------------------------------------------------------
Simon Esneault
Rennes, France
------------------------------------------------------------------
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From kor1581 at gmail.com  Tue Jan 30 07:09:22 2018
From: kor1581 at gmail.com (ran)
Date: Tue, 30 Jan 2018 05:09:22 -0700 (MST)
Subject: [vtkusers] How can set vtkLineWidget2 end point with mouse events?
Message-ID: <1517314162091-0.post@n5.nabble.com>

Hi,
I'm using vtkLineWidget2 to draw line in vtkResliceImageViewer window. My
intention is to draw the line with mouse drag. ie. set the first point in
line with left mouse down event and second point in left mouse button up
event after triggering the vtkLineWidget2::on() (as like vtkDistanceWidget).
Now when call  vtkLineWidget2::on(), a point is appearing in window and need
to drag the handles to create line.
How can I draw the line with vtkLineWidget2  by setting the end points in
mouse events like vtkDistanceWidget operation.




--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From ben.boeckel at kitware.com  Tue Jan 30 09:33:33 2018
From: ben.boeckel at kitware.com (Ben Boeckel)
Date: Tue, 30 Jan 2018 09:33:33 -0500
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <84B5F496-C9B3-48C9-82DF-10BA3DE3E111@nist.gov>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <20180129202801.GA19808@megas.kitware.com>
 <84B5F496-C9B3-48C9-82DF-10BA3DE3E111@nist.gov>
Message-ID: <20180130143333.GD5056@megas.kitware.com>

[ Adding the list back to CC. Please keep the list in the loop. ]

On Tue, Jan 30, 2018 at 03:17:25 +0000, Langer, Stephen A. (Fed) wrote:
> I'm not explicitly requesting any profile -- I'm just trying to use
> vtkXOpenGLRenderWindow, which is being created by
> vtkRenderWindow::New().

I asked since you said you were looking at the requests; I assume the
profile is in there around the same area.

> Is MESA_GL_OVERRIDE a run time variable, or do I set it when building
> mesa or vtk?  Setting it at run time doesn't do anything, unless I'm
> doing it wrong.. I tried

Sorry, I have this one history item floating around that I really need
to purge (done now). It's actually called `MESA_GL_VERSION_OVERRIDE`.

>    % MESA_GL_OVERRIDE=3.2 [my program]
> and it gave the same warnings as before.

This is the right way of using it, just the wrong name :) .

--Ben

From thomas_sgouros at brown.edu  Tue Jan 30 10:30:06 2018
From: thomas_sgouros at brown.edu (Sgouros, Thomas)
Date: Tue, 30 Jan 2018 10:30:06 -0500
Subject: [vtkusers] vtkgluPickMatrix.h missing
Message-ID: <CABrYh3qr2n4JWG8C4sbbU-LovWpcSgvWzxV8gda2uVLmkC76=Q@mail.gmail.com>

Hello all:

I compiled VTK 8.1.0 with the Module_vtkRenderingExternal and
Module_vtkRenderingFreeType set to ON. Now I get an error that my code
(that compiled ok with VTK 8.0.0) cannot find vtkgluPickMatrix.h. I can see
this file in the VTK source, but don't know what module must be included to
get it to install. Any suggestions?

Is there a list somewhere of what code is in which cmake compile modules?

Thank you,

 -Tom
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From beatrix.schober at gmail.com  Tue Jan 30 11:05:46 2018
From: beatrix.schober at gmail.com (Beatrix Schober)
Date: Tue, 30 Jan 2018 17:05:46 +0100
Subject: [vtkusers] (no subject)
Message-ID: <CAGQFJM3f3p1UOCRbL19LKAj5dGfW+XHcCc14z_8ShEYcsNue2w@mail.gmail.com>

Hello,

I am wondering, what is the best way to show/hide pixels with z-value = 0.
Source is vtkPolyData (x, y, z with z as height) and I want to hide or show
the z-values, which are 0.

Thank you very much!
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From beatrix.schober at gmail.com  Tue Jan 30 11:07:25 2018
From: beatrix.schober at gmail.com (Beatrix Schober)
Date: Tue, 30 Jan 2018 17:07:25 +0100
Subject: [vtkusers] How to hide pixels with specific z-value
Message-ID: <CAGQFJM36P8C6tunUxfvQiF2faHKPPSWpSF6zH006o=ZA=4WYnw@mail.gmail.com>

 Hello,

I am wondering, what is the best way to show/hide pixels with z-value = 0.
Source is vtkPolyData (x, y, z with z as height) and I want to hide or show
the z-values, which are 0.

Thank you very much!
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From stephen.langer at nist.gov  Tue Jan 30 15:17:12 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 30 Jan 2018 20:17:12 +0000
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <20180130143333.GD5056@megas.kitware.com>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <20180129202801.GA19808@megas.kitware.com>
 <84B5F496-C9B3-48C9-82DF-10BA3DE3E111@nist.gov>
 <20180130143333.GD5056@megas.kitware.com>
Message-ID: <0900CC97-D934-4219-AA16-A9A425ADC0EC@nist.gov>

Hi Ben --

Setting MESA_GL_VERSION_OVERRIDE doesn't change anything.

However, the plot thickens.

From within vtkXOpenGLRenderWindow::WindowInitialize():

(1)  vtkXOpenGLRenderWindow::CreateAWindow(),  in the block under the comment "try for 32 context", is successfully creating an OpenGL 4.5 context (independent of the value of MESA_GL_VERSION_OVERRIDE).

(2) Then vtkOpenGLRenderWindow::OpenGLInitContext() calls glewInit() and finds that GLEW_VERSION_3_1 and GLEW_VERSION_3_2 aren't set, which they should be if the GL version is 4.5, right?   I don't really understand the difference between GL_VERSION and GLEW_VERSION_x_y.

Changing the setting of VTK_USE_SYSTEM_GLEW doesn't affect this behavior.  I made sure to uninstall macports' glew after turning off VTK_USE_SYSTEM_GLEW.

Sorry about forgetting to CC the list earlier!

 -- Steve

?On 1/30/18, 9:33 AM, "Ben Boeckel" <ben.boeckel at kitware.com> wrote:

    [ Adding the list back to CC. Please keep the list in the loop. ]
    
    On Tue, Jan 30, 2018 at 03:17:25 +0000, Langer, Stephen A. (Fed) wrote:
    > I'm not explicitly requesting any profile -- I'm just trying to use
    > vtkXOpenGLRenderWindow, which is being created by
    > vtkRenderWindow::New().
    
    I asked since you said you were looking at the requests; I assume the
    profile is in there around the same area.
    
    > Is MESA_GL_OVERRIDE a run time variable, or do I set it when building
    > mesa or vtk?  Setting it at run time doesn't do anything, unless I'm
    > doing it wrong.. I tried
    
    Sorry, I have this one history item floating around that I really need
    to purge (done now). It's actually called `MESA_GL_VERSION_OVERRIDE`.
    
    >    % MESA_GL_OVERRIDE=3.2 [my program]
    > and it gave the same warnings as before.
    
    This is the right way of using it, just the wrong name :) .
    
    --Ben
    


From ken.martin at kitware.com  Tue Jan 30 15:55:38 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Tue, 30 Jan 2018 15:55:38 -0500
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <0900CC97-D934-4219-AA16-A9A425ADC0EC@nist.gov>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <20180129202801.GA19808@megas.kitware.com>
 <84B5F496-C9B3-48C9-82DF-10BA3DE3E111@nist.gov>
 <20180130143333.GD5056@megas.kitware.com>
 <0900CC97-D934-4219-AA16-A9A425ADC0EC@nist.gov>
Message-ID: <CANXz0SZJF_fKFhRCWRiPvSWa-u=w+b9t4D8ffWap91jKFMN3UA@mail.gmail.com>

On Tue, Jan 30, 2018 at 3:17 PM, Langer, Stephen A. (Fed) <
stephen.langer at nist.gov> wrote:

> From within vtkXOpenGLRenderWindow::WindowInitialize():
>
> (1)  vtkXOpenGLRenderWindow::CreateAWindow(),  in the block under the
> comment "try for 32 context", is successfully creating an OpenGL 4.5
> context (independent of the value of MESA_GL_VERSION_OVERRIDE).
>
>
That is good.


> (2) Then vtkOpenGLRenderWindow::OpenGLInitContext() calls glewInit() and
> finds that GLEW_VERSION_3_1 and GLEW_VERSION_3_2 aren't set, which they
> should be if the GL version is 4.5, right?   I don't really understand the
> difference between GL_VERSION and GLEW_VERSION_x_y.
>
>
Yes, with 4.5 you also have 3.1 and 3.2. The glew that comes with VTK is
modified to fix an issue in the original glew that caused glew to think it
did not have 3.1/3.2 when on OSX. Maybe somehow a system glew is still
being picked up.



> Changing the setting of VTK_USE_SYSTEM_GLEW doesn't affect this behavior.
> I made sure to uninstall macports' glew after turning off
> VTK_USE_SYSTEM_GLEW.
>
> Sorry about forgetting to CC the list earlier!
>
>  -- Steve
>
> ?On 1/30/18, 9:33 AM, "Ben Boeckel" <ben.boeckel at kitware.com> wrote:
>
>     [ Adding the list back to CC. Please keep the list in the loop. ]
>
>     On Tue, Jan 30, 2018 at 03:17:25 +0000, Langer, Stephen A. (Fed) wrote:
>     > I'm not explicitly requesting any profile -- I'm just trying to use
>     > vtkXOpenGLRenderWindow, which is being created by
>     > vtkRenderWindow::New().
>
>     I asked since you said you were looking at the requests; I assume the
>     profile is in there around the same area.
>
>     > Is MESA_GL_OVERRIDE a run time variable, or do I set it when building
>     > mesa or vtk?  Setting it at run time doesn't do anything, unless I'm
>     > doing it wrong.. I tried
>
>     Sorry, I have this one history item floating around that I really need
>     to purge (done now). It's actually called `MESA_GL_VERSION_OVERRIDE`.
>
>     >    % MESA_GL_OVERRIDE=3.2 [my program]
>     > and it gave the same warnings as before.
>
>     This is the right way of using it, just the wrong name :) .
>
>     --Ben
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

This communication, including all attachments, contains confidential and
legally privileged information, and it is intended only for the use of the
addressee.  Access to this email by anyone else is unauthorized. If you are
not the intended recipient, any disclosure, copying, distribution or any
action taken in reliance on it is prohibited and may be unlawful. If you
received this communication in error please notify us immediately and
destroy the original message.  Thank you.
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From bebe0705 at colorado.edu  Tue Jan 30 16:00:23 2018
From: bebe0705 at colorado.edu (BBerco)
Date: Tue, 30 Jan 2018 14:00:23 -0700 (MST)
Subject: [vtkusers] Shadow casting: vtkFrameBufferObject.h not found in
 example code
In-Reply-To: <CANXz0SYOjJsC2MnOj6SybC2aE34PE3TCJPj3ajMzx3-24QJmtQ@mail.gmail.com>
References: <1517198894770-0.post@n5.nabble.com>
 <1517242989552-0.post@n5.nabble.com>
 <CANXz0SYOjJsC2MnOj6SybC2aE34PE3TCJPj3ajMzx3-24QJmtQ@mail.gmail.com>
Message-ID: <1517346023844-0.post@n5.nabble.com>

Thanks, I was able to build and run the example. Unfortunately I'm having
issues when I'm turning up the mutual shadowing in my application, built
around a qvtkwidget

Upon clicking on a GUI element, I'm executing the following code (directly
taken from the example) that should turn on mutual shadowing (that is, an
actor can cast a shadow over another actor).

To this end, I've added a scene light to the renderer and removed the
default headlight. Two things:

1: Although the scene exactly behaves like it should, vtk is displaying a
warning message on my terminal, claiming that a " light has unknown light
type" . I created the scene light by passing 0 to the SetLightType(int)
method.
2: If at least one actor is displayed in the renderer, Render() runs into a
segmentation fault (see comment at the very bottom of the code).

Also, provided that I get the mutual shadowing to work, is there a way to
dynamically update the shadow locations or is this a static process that
needs to be repeated?

 
*
vtkSmartPointer<vtkShadowMapPass> shadows =
vtkSmartPointer<vtkShadowMapPass>::New();

	vtkSmartPointer<vtkSequencePass> seq =
vtkSmartPointer<vtkSequencePass>::New();
	vtkSmartPointer<vtkRenderPassCollection> passes
=vtkSmartPointer<vtkRenderPassCollection>::New();
	
	passes -> AddItem(shadows -> GetShadowMapBakerPass());
	passes -> AddItem(shadows);
	seq -> SetPasses(passes);

	vtkSmartPointer<vtkCameraPass> cameraP =
vtkSmartPointer<vtkCameraPass>::New();
	cameraP->SetDelegatePass(seq);

	vtkOpenGLRenderer *glrenderer = vtkOpenGLRenderer::SafeDownCast(this ->
parent -> get_renderer());
	glrenderer->SetPass(cameraP);
       // segfaults inside Render()
	this -> parent -> qvtkWidget -> GetRenderWindow() -> Render();*



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From chris.marsh at usask.ca  Tue Jan 30 16:26:38 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Tue, 30 Jan 2018 15:26:38 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerH_XxLPRFYU_3dpUdCoQJuNES7VqdSX4-fF2Cv3ikDBag@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
 <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
 <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>
 <CAFgDerH_XxLPRFYU_3dpUdCoQJuNES7VqdSX4-fF2Cv3ikDBag@mail.gmail.com>
Message-ID: <CAFgDerE1Nk_Cbcqmi0TQRGOD3FAZ3s_YL100qugWwf8TvLg+Sg@mail.gmail.com>

Hi all,

I have some updates on this. I recently discovered the LD_DEBUG=bindings
linker tool, so I can see what is happening.

There appear to be many cases where either the proj4 library I built or my
executable bind to symbols in libvtkproj.

A few examples shown here. 'After patch elf' is when I use patchelf with
--replace-needed to remove libvtkproj.so

As built
 21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
normal symbol `pj_prime_meridians'
     21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
normal symbol `pj_list'
     21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
`stdout' [GLIBC_2.2.5]
     21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
normal symbol `pj_ellps'
     21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
normal symbol `pj_datums'

After patch elf

21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
symbol `pj_prime_meridians'
     21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
symbol `pj_list'
     21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
`stdout' [GLIBC_2.2.5]
     21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
symbol `pj_ellps'
     21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
[0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
symbol `pj_datums'


Another example:

As built
 21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/bin/Release/CHM [0]: normal symbol `stderr'
[GLIBC_2.2.5]
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_units'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aea'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_aea'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aeqd'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_aeqd'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_airy'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_airy'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aitoff'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_aitoff'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_alsk'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_alsk'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_apian'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `pj_s_apian'
     21340: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_august'


after patchelf

 21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_units'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aea'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_aea'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aeqd'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_aeqd'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_airy'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_airy'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_aitoff'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_aitoff'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_alsk'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_alsk'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_apian'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_apian'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal
symbol `vtk_pj_august'
     21259: binding file
/home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to
/home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal symbol
`pj_s_august'


Building VTK with system proj4 does correctly 'solve' the problem.

Can provide more details if required.

Cheers
Chris

On 16 January 2018 at 13:17, Chris Marsh <chris.marsh at usask.ca> wrote:

> Hi all,
>
> Thanks for the detailed thoughts.
>
> Is the message you are getting from proj saying that the string you pass
>> is not valid?
>>
> Correct. However, I've verified with both the GDAL and proj4 mailing lists
> that the string is correct. The string is actually output from proj4
> itself, so I have substantial confidence in it.
>
>
>> Maybe somebody overrides that memory?
>> Try run your program though valgrind and/or comment out chunks of code
>> trying to see who causes your error.
>>
> Valgrind and the Intel memory tools show no memory corruption.
>
> Is VTK in the call stack for the errors you described? If not, I think it
>> is not involved in the errors.
>
> GDAL, as I understand, dynamically opens the .so at runtime, so it's tough
> to figure out exactly what it is doing. Looking at the backtrace in gdb
> shows that it appears to be calling into the system proj4 before it
> segfaults.
>
> If I use patchelf to strip the vtkproj4 reference, it is then fine.  If
> use patchelf to strip the system proj4 leaving the vtkproj4, I get the same
> error and segfault.
>
> I *suspect* GDAL is doing the wrong thing here and loading the wrong
> library for some calls. This is all to say, I don't think it's a VTK
> problem per se, but is for whatever reason, conflicting on this system.
>
> Further weirdness is that on the machines this works 100%, I don't see any
> reference to libvtkproj4.
>
> I'll follow up after I rebuild everything again with the VTK system proj4.
>
> Thanks very much,
>
> Cheers
> Chris
>
>
> University of Saskatchewan
>
> On 15 January 2018 at 10:03, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>
>> Hi Chris,
>> Is VTK in the call stack for the errors you described? If not, I think it
>> is not involved in the errors.
>>
>> vtkproj should not interfere with proj, but you can make VTK use the
>> system proj with the method described earlier.
>>
>> Is the message you are getting from proj saying that the string you pass
>> is not valid? Maybe somebody overrides that memory?
>> Try run your program though valgrind and/or comment out chunks of code
>> trying to see who causes your error.
>> Hope this helps,
>> Dan
>>
>>
>>
>> On Fri, Jan 12, 2018 at 3:32 PM, Chris Marsh <chris.marsh at usask.ca>
>> wrote:
>>
>>> Hi Dan,
>>>
>>> I'm trying to figure out the issue I detail here:
>>> http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-PRO
>>> J-4-with-quot-quot-td5338323.html
>>> http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-Failed-
>>> to-initialize-PROJ-4-with-quot-quot-td5338107.html
>>>
>>> Effectively the error is that GDAL seems to call the incorrect
>>> library/something happens, and the projection fails.
>>>
>>> In an effort to resolve this I was looking at my binary via LDD and found
>>> $ ldd ~/build-release/bin/Release/CHM | grep proj4
>>>         libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>>> (0x00002b517aa36000)
>>>         libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
>>> (0x00002b51944d2000)
>>>
>>> If I use patchelf (https://github.com/NixOS/patchelf) to strip
>>> libvtkproj4-8.0.so.1 from my binary, my code runs without the error.
>>>
>>> I don't quite understand why I don't have this problem on other machines
>>> though. Looking at other machines I compile on (using a custom VTK build) I
>>> don't see any reference to the VTK libproj4 via ldd.
>>>
>>> Thus I attributed the error to vtkproj4 inclusion. However if you mangle
>>> names, then I agree I don't understand why this is happening.
>>>
>>> Cheers
>>> Chris
>>>
>>>
>>> On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>>
>>>> Chris,
>>>>
>>>> 1. Going back to the beginning of the thread, I don't understand why
>>>> vtklibproj conflicts with another proj, given that we mangle all names. Can
>>>> you send us the errors.
>>>>
>>>> 2. If you do want to build with the system proj4
>>>>
>>>> Can you send up the output of:
>>>> cat CMakeCache.txt | grep LIBPROJ
>>>>
>>>> This is what I have:
>>>> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
>>>> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
>>>> LIBPROJ_BINDIR:PATH=bin
>>>> LIBPROJ_DATADIR:PATH=share/proj
>>>> LIBPROJ_DOCDIR:PATH=doc/proj
>>>> LIBPROJ_INCLUDEDIR:PATH=include
>>>> LIBPROJ_LIBDIR:PATH=lib
>>>> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>>>> LIBPROJ_USE_THREAD:BOOL=ON
>>>> //Use system-installed LIBPROJ4
>>>> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
>>>> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
>>>> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
>>>> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
>>>> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
>>>> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
>>>> //ADVANCED property for variable: LIBPROJ_BINDIR
>>>> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_DATADIR
>>>> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_DOCDIR
>>>> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
>>>> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_LIBDIR
>>>> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_M_LIB
>>>> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: LIBPROJ_USE_THREAD
>>>> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
>>>> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
>>>> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>>>>
>>>>
>>>> Make sure
>>>> LIBPROJ4_INCLUDE_DIR
>>>> LIBPROJ4_LIBRARIES
>>>> VTK_USE_SYSTEM_LIBPROJ4
>>>> have the correct values.
>>>>
>>>> All those are cmake variables, you change them using ccmake or
>>>> cmake-gui.
>>>> After that you call:
>>>>
>>>> cmake .
>>>> make
>>>>
>>>>
>>>>
>>>> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
>>>> aashish.chaudhary at kitware.com> wrote:
>>>>
>>>>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>>>>
>>>>> - aashish
>>>>>
>>>>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca>
>>>>> wrote:
>>>>>
>>>>>> Looks like something is setting
>>>>>> PROJ4_INCLUDE_DIR
>>>>>> PROJ4_LIBRARY
>>>>>> to the system's proj4. I use a custom findproj4 that only looks where
>>>>>> I tell it.
>>>>>>
>>>>>> then I see that
>>>>>> LIB_FILES:INTERNAL
>>>>>> contains vtkproj4
>>>>>> LIB_FILES just holds all my 3rd party libraries I need to link
>>>>>> against.
>>>>>>
>>>>>> Chris Marsh
>>>>>> PhD Candidate
>>>>>> chrismarsh.ca
>>>>>>
>>>>>> 121 Research Drive
>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>> University of Saskatchewan
>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>>
>>>>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>>>>> wrote:
>>>>>>
>>>>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>>>>> > Thanks for the details. This doesn't seem to be working for me
>>>>>>> though. I've
>>>>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command line
>>>>>>> as well
>>>>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>>>>>> neither
>>>>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>>>>
>>>>>>> CMake should be getting the flag. If you do:
>>>>>>>
>>>>>>>     grep -i proj4 CMakeCache.txt
>>>>>>>
>>>>>>> do any variables stand out as potentially being set to use the
>>>>>>> internal
>>>>>>> one?
>>>>>>>
>>>>>>> --Ben
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at
>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>
>>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>>
>>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>>
>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>> https://vtk.org/mailman/listinfo/vtkusers
>>>>>>
>>>>>
>>>>
>>>
>>
>
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From stephen.langer at nist.gov  Tue Jan 30 17:08:18 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 30 Jan 2018 22:08:18 +0000
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <CANXz0SZJF_fKFhRCWRiPvSWa-u=w+b9t4D8ffWap91jKFMN3UA@mail.gmail.com>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <20180129202801.GA19808@megas.kitware.com>
 <84B5F496-C9B3-48C9-82DF-10BA3DE3E111@nist.gov>
 <20180130143333.GD5056@megas.kitware.com>
 <0900CC97-D934-4219-AA16-A9A425ADC0EC@nist.gov>
 <CANXz0SZJF_fKFhRCWRiPvSWa-u=w+b9t4D8ffWap91jKFMN3UA@mail.gmail.com>
Message-ID: <9254E192-5453-4B15-8DAF-466CCE86FD6B@nist.gov>



On 1/30/18, 3:55 PM, "Ken Martin" <ken.martin at kitware.com<mailto:ken.martin at kitware.com>> wrote:



On Tue, Jan 30, 2018 at 3:17 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
From within vtkXOpenGLRenderWindow::WindowInitialize():

(1)  vtkXOpenGLRenderWindow::CreateAWindow(),  in the block under the comment "try for 32 context", is successfully creating an OpenGL 4.5 context (independent of the value of MESA_GL_VERSION_OVERRIDE).

That is good.

(2) Then vtkOpenGLRenderWindow::OpenGLInitContext() calls glewInit() and finds that GLEW_VERSION_3_1 and GLEW_VERSION_3_2 aren't set, which they should be if the GL version is 4.5, right?   I don't really understand the difference between GL_VERSION and GLEW_VERSION_x_y.

Yes, with 4.5 you also have 3.1 and 3.2. The glew that comes with VTK is modified to fix an issue in the original glew that caused glew to think it did not have 3.1/3.2 when on OSX. Maybe somehow a system glew is still being picked up.

It's definitely using the VTK glew when I turn VTK_USE_SYSTEM_GLEW off.  I uninstalled the macports glew to be sure.

I modified glewContextInit() in VTK's glew.c to print the GL version, and it's printing 2.1.    The full version string is "s=2.1 ATI-1.51.8".
I haven't figured out where *that* comes from -- it's returned by glGetString(GL_VERSION) but the mesa source is very hard to navigate.

-- Steve
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From stephen.langer at nist.gov  Tue Jan 30 17:13:31 2018
From: stephen.langer at nist.gov (Langer, Stephen A. (Fed))
Date: Tue, 30 Jan 2018 22:13:31 +0000
Subject: [vtkusers] vtk getting wrong OpenGL version number from mesa
 and macports
In-Reply-To: <CANwS1=HhRkTMjoTadToAyiO+Zt5m66G+Lj=DFn1zsksGYZGxnA@mail.gmail.com>
References: <37D63EDD-4303-4C57-8281-F7B17718FED0@nist.gov>
 <CANXz0SYgy3Cz6Si=ioPdROTG1xSDtX0jQYGMBa_HwRfUW43+-g@mail.gmail.com>
 <4B3E5AB5-14C9-4C99-8469-874F10BEDA43@nist.gov>
 <CANwS1=FOX9seVDnRK9z73q2XQX6HMFq+niEGgVcN7Q=rkHXT2A@mail.gmail.com>
 <CANwS1=HhRkTMjoTadToAyiO+Zt5m66G+Lj=DFn1zsksGYZGxnA@mail.gmail.com>
Message-ID: <941BED3D-D642-4CA1-8699-56788F3AB5AD@nist.gov>

I think that macports' xorg-server port is supposed to be the same as xquartz, but I downloaded xquartz to see what was in it, and I does provide glx.h while xorg-server does not.   For simplicity (hah!) I'd like to keep as much as possible of the installation within macports, so I'd rather not install xquartz.  Perhaps I'll have to give up on that.

-- Steve

On 1/29/18, 11:16 PM, "David Gobbi" <david.gobbi at gmail.com<mailto:david.gobbi at gmail.com>> wrote:

Hmm, I just checked and /usr/X11R6 is just a symlink to /opt/X11, so the latter is probably the better place to look.

On Mon, Jan 29, 2018 at 8:33 PM, David Gobbi <david.gobbi at gmail.com<mailto:david.gobbi at gmail.com>> wrote:
Hi Steve,

If you install xquartz, you should see glx.h in /usr/X11R6/include.  On OS X, X11 always had its own GL headers and libraries inside /usr/X11R6/include and /usr/X11R6/lib.  You'd definitely have to link to those libraries, rather than linking to OpenGL.framework.

I remember that VTK-X11 on OS X was a well-supported configuration back in 2005 or so.

 - David


On Mon, Jan 29, 2018 at 8:06 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
OSX does come with OpenGL, but not the X11 parts of it.  There's no glx.h in /System/Library/Frameworks/OpenGL.framework/Headers, and the libraries don't define glXChooseFBConfig and other symbols used by VTK.

Just firing up ccmake and not making any changes to the configuration gives VTK_USE_X=OFF and VTK_USE_COCOA=ON, but I want them the other way around.  Changing those two settings but nothing else makes it try to link to the OpenGL.framework, and the build fails because the framework doesn't support X11.   Pointing OPENGL_INCLUDE_DIR, OPENGL_gl_LIBRARY, and OPENGL_glu_LIBRARY to the mesa components lets VTK build, but it gives a warning at run time when it checks the OpenGL version, and then crashes.

The reason for doing this is that many (most?) ports in macports use X11 instead of Cocoa/Quartz, and it's difficult to mix the two.  Our software will be easier to distribute if it can be built to use either X11 or Cocoa.   Also, we're using gtk2, and it works better in X11.  (Someday we'll upgrade to gtk3?)

-- Steve

From: Ken Martin <ken.martin at kitware.com<mailto:ken.martin at kitware.com>>
Date: Monday, January 29, 2018 at 3:21 PM
To: "Langer, Stephen A. (Fed)" <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>>
Cc: "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: Re: [vtkusers] vtk getting wrong OpenGL version number from mesa and macports

I'm pretty sure OSX comes with OpenGL and OSX always provides at least OpenGL 3.2 as of any version of OSX in the past few years. I'm not an OSX wizard, but generally default vtk builds straight out of the box last I checked. Maybe try a clean VTK build using all the defaults and see if that works.

On Mon, Jan 29, 2018 at 3:08 PM, Langer, Stephen A. (Fed) <stephen.langer at nist.gov<mailto:stephen.langer at nist.gov>> wrote:
Hi --

I'm revisiting earler efforts to get vtk working with X11 on macOS.  I'd been building vtk with Cocoa because with X11 vtk was complaining that it couldn't find OpenGL version 3.2 or later.  I'm using macports to install OpenGL (mesa), and supposedly it's providing version 4.5 of OpenGL.

I've tried building vtk both with and without VTK_USE_SYSTEM_GLEW, since vtk gets the version number from glew.  I tried tracing though the process of getting the version number, starting with vtkOpenGLRenderWindow::OpenGLInitContext(), but found the glew code to be amazingly opaque.   All I know for sure is that in vtk's OpenGLInitContext, GLEW_VERSION_3_2 and GLEW_VERSION_3_1 are empty, but the glew source code *does* set them, in glewContextInit() in glew.c.  I don't know what it sets them *to*, though.

I'm using the latest vtk from git master, but the problem occurred with released versions too.

I don't know if this is a vtk problem or a macports problem or a mesa problem, but I didn't get a helpful answer from the macports list.  Any advice would be much appreciated.

Thanks.

 -- Steve

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From dan.lipsa at kitware.com  Tue Jan 30 17:35:12 2018
From: dan.lipsa at kitware.com (Dan Lipsa)
Date: Tue, 30 Jan 2018 17:35:12 -0500
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CAFgDerE1Nk_Cbcqmi0TQRGOD3FAZ3s_YL100qugWwf8TvLg+Sg@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
 <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
 <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>
 <CAFgDerH_XxLPRFYU_3dpUdCoQJuNES7VqdSX4-fF2Cv3ikDBag@mail.gmail.com>
 <CAFgDerE1Nk_Cbcqmi0TQRGOD3FAZ3s_YL100qugWwf8TvLg+Sg@mail.gmail.com>
Message-ID: <CADwGrVo4nT9RApd386v9ZqEQgm1jfvs8TNgSKL6b9tZ4PJGu_Q@mail.gmail.com>

Hi Chris,
Thanks for investigating this.
Indeed, looking the the so file, there are some symbols that we are not
mangling, which cause the problems you've seen.
I believe this was caused by updating of the version of the library we are
including without updating the list of symbols we are mangling.
We'll fix this shortly,

Dan


On Tue, Jan 30, 2018 at 4:26 PM, Chris Marsh <chris.marsh at usask.ca> wrote:

> Hi all,
>
> I have some updates on this. I recently discovered the LD_DEBUG=bindings
> linker tool, so I can see what is happening.
>
> There appear to be many cases where either the proj4 library I built or my
> executable bind to symbols in libvtkproj.
>
> A few examples shown here. 'After patch elf' is when I use patchelf with
> --replace-needed to remove libvtkproj.so
>
> As built
>  21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
> normal symbol `pj_prime_meridians'
>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
> normal symbol `pj_list'
>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
> `stdout' [GLIBC_2.2.5]
>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
> normal symbol `pj_ellps'
>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
> normal symbol `pj_datums'
>
> After patch elf
>
> 21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
> symbol `pj_prime_meridians'
>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
> symbol `pj_list'
>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
> `stdout' [GLIBC_2.2.5]
>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
> symbol `pj_ellps'
>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]: normal
> symbol `pj_datums'
>
>
> Another example:
>
> As built
>  21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/bin/Release/CHM
> [0]: normal symbol `stderr' [GLIBC_2.2.5]
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_units'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aea'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_aea'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aeqd'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_aeqd'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_airy'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_airy'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aitoff'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_aitoff'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_alsk'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_alsk'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_apian'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `pj_s_apian'
>      21340: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_august'
>
>
> after patchelf
>
>  21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_units'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aea'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_aea'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aeqd'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_aeqd'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_airy'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_airy'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_aitoff'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_aitoff'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_alsk'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_alsk'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_apian'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_apian'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0]: normal symbol `vtk_pj_august'
>      21259: binding file /home/cbm038/build-release/
> lib/VTK/lib/libvtkproj4-8.0.so.1 [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
> [0]: normal symbol `pj_s_august'
>
>
> Building VTK with system proj4 does correctly 'solve' the problem.
>
> Can provide more details if required.
>
> Cheers
> Chris
>
> On 16 January 2018 at 13:17, Chris Marsh <chris.marsh at usask.ca> wrote:
>
>> Hi all,
>>
>> Thanks for the detailed thoughts.
>>
>> Is the message you are getting from proj saying that the string you pass
>>> is not valid?
>>>
>> Correct. However, I've verified with both the GDAL and proj4 mailing
>> lists that the string is correct. The string is actually output from proj4
>> itself, so I have substantial confidence in it.
>>
>>
>>> Maybe somebody overrides that memory?
>>> Try run your program though valgrind and/or comment out chunks of code
>>> trying to see who causes your error.
>>>
>> Valgrind and the Intel memory tools show no memory corruption.
>>
>> Is VTK in the call stack for the errors you described? If not, I think it
>>> is not involved in the errors.
>>
>> GDAL, as I understand, dynamically opens the .so at runtime, so it's
>> tough to figure out exactly what it is doing. Looking at the backtrace in
>> gdb shows that it appears to be calling into the system proj4 before it
>> segfaults.
>>
>> If I use patchelf to strip the vtkproj4 reference, it is then fine.  If
>> use patchelf to strip the system proj4 leaving the vtkproj4, I get the same
>> error and segfault.
>>
>> I *suspect* GDAL is doing the wrong thing here and loading the wrong
>> library for some calls. This is all to say, I don't think it's a VTK
>> problem per se, but is for whatever reason, conflicting on this system.
>>
>> Further weirdness is that on the machines this works 100%, I don't see
>> any reference to libvtkproj4.
>>
>> I'll follow up after I rebuild everything again with the VTK system proj4.
>>
>> Thanks very much,
>>
>> Cheers
>> Chris
>>
>>
>> University of Saskatchewan
>>
>> On 15 January 2018 at 10:03, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>
>>> Hi Chris,
>>> Is VTK in the call stack for the errors you described? If not, I think
>>> it is not involved in the errors.
>>>
>>> vtkproj should not interfere with proj, but you can make VTK use the
>>> system proj with the method described earlier.
>>>
>>> Is the message you are getting from proj saying that the string you pass
>>> is not valid? Maybe somebody overrides that memory?
>>> Try run your program though valgrind and/or comment out chunks of code
>>> trying to see who causes your error.
>>> Hope this helps,
>>> Dan
>>>
>>>
>>>
>>> On Fri, Jan 12, 2018 at 3:32 PM, Chris Marsh <chris.marsh at usask.ca>
>>> wrote:
>>>
>>>> Hi Dan,
>>>>
>>>> I'm trying to figure out the issue I detail here:
>>>> http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-PRO
>>>> J-4-with-quot-quot-td5338323.html
>>>> http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-Failed-
>>>> to-initialize-PROJ-4-with-quot-quot-td5338107.html
>>>>
>>>> Effectively the error is that GDAL seems to call the incorrect
>>>> library/something happens, and the projection fails.
>>>>
>>>> In an effort to resolve this I was looking at my binary via LDD and
>>>> found
>>>> $ ldd ~/build-release/bin/Release/CHM | grep proj4
>>>>         libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>>>> (0x00002b517aa36000)
>>>>         libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
>>>> (0x00002b51944d2000)
>>>>
>>>> If I use patchelf (https://github.com/NixOS/patchelf) to strip
>>>> libvtkproj4-8.0.so.1 from my binary, my code runs without the error.
>>>>
>>>> I don't quite understand why I don't have this problem on other
>>>> machines though. Looking at other machines I compile on (using a custom VTK
>>>> build) I don't see any reference to the VTK libproj4 via ldd.
>>>>
>>>> Thus I attributed the error to vtkproj4 inclusion. However if you
>>>> mangle names, then I agree I don't understand why this is happening.
>>>>
>>>> Cheers
>>>> Chris
>>>>
>>>>
>>>> On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>>>
>>>>> Chris,
>>>>>
>>>>> 1. Going back to the beginning of the thread, I don't understand why
>>>>> vtklibproj conflicts with another proj, given that we mangle all names. Can
>>>>> you send us the errors.
>>>>>
>>>>> 2. If you do want to build with the system proj4
>>>>>
>>>>> Can you send up the output of:
>>>>> cat CMakeCache.txt | grep LIBPROJ
>>>>>
>>>>> This is what I have:
>>>>> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
>>>>> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
>>>>> LIBPROJ_BINDIR:PATH=bin
>>>>> LIBPROJ_DATADIR:PATH=share/proj
>>>>> LIBPROJ_DOCDIR:PATH=doc/proj
>>>>> LIBPROJ_INCLUDEDIR:PATH=include
>>>>> LIBPROJ_LIBDIR:PATH=lib
>>>>> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>>>>> LIBPROJ_USE_THREAD:BOOL=ON
>>>>> //Use system-installed LIBPROJ4
>>>>> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
>>>>> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
>>>>> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
>>>>> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
>>>>> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
>>>>> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
>>>>> //ADVANCED property for variable: LIBPROJ_BINDIR
>>>>> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_DATADIR
>>>>> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_DOCDIR
>>>>> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
>>>>> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_LIBDIR
>>>>> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_M_LIB
>>>>> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: LIBPROJ_USE_THREAD
>>>>> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
>>>>> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>>> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
>>>>> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>>> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>>>>>
>>>>>
>>>>> Make sure
>>>>> LIBPROJ4_INCLUDE_DIR
>>>>> LIBPROJ4_LIBRARIES
>>>>> VTK_USE_SYSTEM_LIBPROJ4
>>>>> have the correct values.
>>>>>
>>>>> All those are cmake variables, you change them using ccmake or
>>>>> cmake-gui.
>>>>> After that you call:
>>>>>
>>>>> cmake .
>>>>> make
>>>>>
>>>>>
>>>>>
>>>>> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
>>>>> aashish.chaudhary at kitware.com> wrote:
>>>>>
>>>>>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>>>>>
>>>>>> - aashish
>>>>>>
>>>>>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca>
>>>>>> wrote:
>>>>>>
>>>>>>> Looks like something is setting
>>>>>>> PROJ4_INCLUDE_DIR
>>>>>>> PROJ4_LIBRARY
>>>>>>> to the system's proj4. I use a custom findproj4 that only looks
>>>>>>> where I tell it.
>>>>>>>
>>>>>>> then I see that
>>>>>>> LIB_FILES:INTERNAL
>>>>>>> contains vtkproj4
>>>>>>> LIB_FILES just holds all my 3rd party libraries I need to link
>>>>>>> against.
>>>>>>>
>>>>>>> Chris Marsh
>>>>>>> PhD Candidate
>>>>>>> chrismarsh.ca
>>>>>>>
>>>>>>> 121 Research Drive
>>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>>> University of Saskatchewan
>>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>>>
>>>>>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>>>>>> > Thanks for the details. This doesn't seem to be working for me
>>>>>>>> though. I've
>>>>>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command
>>>>>>>> line as well
>>>>>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4", however
>>>>>>>> neither
>>>>>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>>>>>
>>>>>>>> CMake should be getting the flag. If you do:
>>>>>>>>
>>>>>>>>     grep -i proj4 CMakeCache.txt
>>>>>>>>
>>>>>>>> do any variables stand out as potentially being set to use the
>>>>>>>> internal
>>>>>>>> one?
>>>>>>>>
>>>>>>>> --Ben
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
>>>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>>>
>>>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>>>
>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>> https://vtk.org/mailman/listinfo/vtkusers
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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From simon.esneault at gmail.com  Tue Jan 30 17:48:33 2018
From: simon.esneault at gmail.com (Simon Esneault)
Date: Tue, 30 Jan 2018 23:48:33 +0100
Subject: [vtkusers] Blue artefact on complex scene with VTK 8.1 +
 QVTKWidget + OSX and Intel chipset
In-Reply-To: <CAC9gB0DwEz9C=s00-c9Pi7HOhbx03QdS+ExathD=rt7iWZdQpA@mail.gmail.com>
References: <CAC9gB0CZhDtOvBYiiC-6oKFciEf4_g6KPsO=dzo6V1TWtcJ8Sg@mail.gmail.com>
 <CAC9gB0DwEz9C=s00-c9Pi7HOhbx03QdS+ExathD=rt7iWZdQpA@mail.gmail.com>
Message-ID: <CAC9gB0ANQnGfbJVhWevP+DWtY-N8egQd1ixuz645ruE4N8ZtLg@mail.gmail.com>

I forgot to say that the same code does not produce any blue artefact on an
Nvidia or ATI card, and we were not able to reproduce this visual glitch on
Windows either.

If that can help ...
Thanks

Simon

Le 30 janv. 2018 10:17, "Simon Esneault" <simon.esneault at gmail.com> a
?crit :

Hello community

After the migration to VTK 8.1 (from VTK 7.1), we are seing strange blue
artefact in one of our scene as it can be seen in the following snapshots.
And I'm having real hard time debugging that ...

https://pasteboard.co/H5irkgl.png
https://pasteboard.co/H5irBQ4.png

The context is as follow :
- Qt 5.3.2 on OSX  and Intel chipset (Iris or HD > 4000)
- VTK 8.1
- 3 layered vtkRenderer in one vtkRenderWindow in a QVTKWidget
- GPUVolumeRendering on the first layer, some vtkActor/Polydata on the
second layer, and some vtkActor2D/vtkTextActor on the third layer.

This bug only appears after the view has been "reparented" (the user can
choose different "layout") and is triggered when we add a new vtkPolyData
to be rendered. If the user move the scene, all goes back to normal. It
look like we're seing some garbage blue buffer, but I have no clue where to
look at...

Anyone have experienced something like this ?

Thanks a lot

PS: I know QVTKWidget is deprecated and we should move to QVTKOpenGLWidget,
but our app is quite big and moving to Qt >= Qt 5.4 has some other
implication so that is not solution for now ...

-- 
------------------------------------------------------------------
Simon Esneault
Rennes, France
------------------------------------------------------------------
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From chris.marsh at usask.ca  Tue Jan 30 17:59:53 2018
From: chris.marsh at usask.ca (Chris Marsh)
Date: Tue, 30 Jan 2018 16:59:53 -0600
Subject: [vtkusers] Don't build vtkproj4?
In-Reply-To: <CADwGrVo4nT9RApd386v9ZqEQgm1jfvs8TNgSKL6b9tZ4PJGu_Q@mail.gmail.com>
References: <CAFgDerFW1DMmETyU7WZkLw6JU53GhZPiS0t19uA2t+98_GHSJg@mail.gmail.com>
 <20180110125844.GA1305@megas.kitware.com>
 <CAFgDerHzTOn=aCPHnO-ZAA1e8CaySZtx19j+-y-=zwXyjTToxg@mail.gmail.com>
 <20180110153601.GA21857@megas.kitware.com>
 <CAFgDerFkeA673TTPoyQN6FTkA8P702mM+KRWUijh6a2Nja91QQ@mail.gmail.com>
 <20180111192937.GA11091@megas.kitware.com>
 <CAFgDerEH=OoKWNb9D2wJSOrWz-QodmMTYpj8RAnU7X2c65w0SQ@mail.gmail.com>
 <CAEw35Z_94U+X3M7TcFj6+7gO5WthiyogfS+P6gUpu5JoF+hd_g@mail.gmail.com>
 <CADwGrVr3BVikfrkzrreZYFqakh33_9V0jP4nZnup-hd4=U4KFA@mail.gmail.com>
 <CAFgDerEOgNdaLQHzE0OXC0UC3J_LfKbqv8pEYnKUDo1je_M_5Q@mail.gmail.com>
 <CADwGrVqGqrq9QAJEXO+H1i6f4aQonEe=rMoMutmtrc9snoeYUA@mail.gmail.com>
 <CAFgDerH_XxLPRFYU_3dpUdCoQJuNES7VqdSX4-fF2Cv3ikDBag@mail.gmail.com>
 <CAFgDerE1Nk_Cbcqmi0TQRGOD3FAZ3s_YL100qugWwf8TvLg+Sg@mail.gmail.com>
 <CADwGrVo4nT9RApd386v9ZqEQgm1jfvs8TNgSKL6b9tZ4PJGu_Q@mail.gmail.com>
Message-ID: <CAFgDerHLUKMTk_41XjynW1a3JxZQvWP5Ei8Xt5vnvQyKrpvuUA@mail.gmail.com>

Hi,
That is great to hear!
Cheers
Chris


On 30 January 2018 at 16:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> Hi Chris,
> Thanks for investigating this.
> Indeed, looking the the so file, there are some symbols that we are not
> mangling, which cause the problems you've seen.
> I believe this was caused by updating of the version of the library we are
> including without updating the list of symbols we are mangling.
> We'll fix this shortly,
>
> Dan
>
>
> On Tue, Jan 30, 2018 at 4:26 PM, Chris Marsh <chris.marsh at usask.ca> wrote:
>
>> Hi all,
>>
>> I have some updates on this. I recently discovered the LD_DEBUG=bindings
>> linker tool, so I can see what is happening.
>>
>> There appear to be many cases where either the proj4 library I built or
>> my executable bind to symbols in libvtkproj.
>>
>> A few examples shown here. 'After patch elf' is when I use patchelf with
>> --replace-needed to remove libvtkproj.so
>>
>> As built
>>  21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_prime_meridians'
>>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_list'
>>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
>> `stdout' [GLIBC_2.2.5]
>>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_ellps'
>>      21340: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_datums'
>>
>> After patch elf
>>
>> 21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_prime_meridians'
>>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_list'
>>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
>> `stdout' [GLIBC_2.2.5]
>>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_ellps'
>>      21259: binding file /home/cbm038/build-release/lib/proj4/lib/libproj.so.12
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_datums'
>>
>>
>> Another example:
>>
>> As built
>>  21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/bin/Release/CHM [0]: normal symbol
>> `stderr' [GLIBC_2.2.5]
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_units'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aea'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_aea'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aeqd'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_aeqd'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_airy'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_airy'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aitoff'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_aitoff'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_alsk'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_alsk'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_apian'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `pj_s_apian'
>>      21340: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_august'
>>
>>
>> after patchelf
>>
>>  21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_units'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aea'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_aea'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aeqd'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_aeqd'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_airy'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_airy'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_aitoff'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_aitoff'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_alsk'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_alsk'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_apian'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_apian'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1 [0]:
>> normal symbol `vtk_pj_august'
>>      21259: binding file /home/cbm038/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>> [0] to /home/cbm038/build-release/lib/proj4/lib/libproj.so.12 [0]:
>> normal symbol `pj_s_august'
>>
>>
>> Building VTK with system proj4 does correctly 'solve' the problem.
>>
>> Can provide more details if required.
>>
>> Cheers
>> Chris
>>
>> On 16 January 2018 at 13:17, Chris Marsh <chris.marsh at usask.ca> wrote:
>>
>>> Hi all,
>>>
>>> Thanks for the detailed thoughts.
>>>
>>> Is the message you are getting from proj saying that the string you pass
>>>> is not valid?
>>>>
>>> Correct. However, I've verified with both the GDAL and proj4 mailing
>>> lists that the string is correct. The string is actually output from proj4
>>> itself, so I have substantial confidence in it.
>>>
>>>
>>>> Maybe somebody overrides that memory?
>>>> Try run your program though valgrind and/or comment out chunks of code
>>>> trying to see who causes your error.
>>>>
>>> Valgrind and the Intel memory tools show no memory corruption.
>>>
>>> Is VTK in the call stack for the errors you described? If not, I think
>>>> it is not involved in the errors.
>>>
>>> GDAL, as I understand, dynamically opens the .so at runtime, so it's
>>> tough to figure out exactly what it is doing. Looking at the backtrace in
>>> gdb shows that it appears to be calling into the system proj4 before it
>>> segfaults.
>>>
>>> If I use patchelf to strip the vtkproj4 reference, it is then fine.  If
>>> use patchelf to strip the system proj4 leaving the vtkproj4, I get the same
>>> error and segfault.
>>>
>>> I *suspect* GDAL is doing the wrong thing here and loading the wrong
>>> library for some calls. This is all to say, I don't think it's a VTK
>>> problem per se, but is for whatever reason, conflicting on this system.
>>>
>>> Further weirdness is that on the machines this works 100%, I don't see
>>> any reference to libvtkproj4.
>>>
>>> I'll follow up after I rebuild everything again with the VTK system
>>> proj4.
>>>
>>> Thanks very much,
>>>
>>> Cheers
>>> Chris
>>>
>>>
>>> University of Saskatchewan
>>>
>>> On 15 January 2018 at 10:03, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>>
>>>> Hi Chris,
>>>> Is VTK in the call stack for the errors you described? If not, I think
>>>> it is not involved in the errors.
>>>>
>>>> vtkproj should not interfere with proj, but you can make VTK use the
>>>> system proj with the method described earlier.
>>>>
>>>> Is the message you are getting from proj saying that the string you
>>>> pass is not valid? Maybe somebody overrides that memory?
>>>> Try run your program though valgrind and/or comment out chunks of code
>>>> trying to see who causes your error.
>>>> Hope this helps,
>>>> Dan
>>>>
>>>>
>>>>
>>>> On Fri, Jan 12, 2018 at 3:32 PM, Chris Marsh <chris.marsh at usask.ca>
>>>> wrote:
>>>>
>>>>> Hi Dan,
>>>>>
>>>>> I'm trying to figure out the issue I detail here:
>>>>> http://osgeo-org.1560.x6.nabble.com/Failed-to-initialize-PRO
>>>>> J-4-with-quot-quot-td5338323.html
>>>>> http://osgeo-org.1560.x6.nabble.com/gdal-dev-ERROR-6-Failed-
>>>>> to-initialize-PROJ-4-with-quot-quot-td5338107.html
>>>>>
>>>>> Effectively the error is that GDAL seems to call the incorrect
>>>>> library/something happens, and the projection fails.
>>>>>
>>>>> In an effort to resolve this I was looking at my binary via LDD and
>>>>> found
>>>>> $ ldd ~/build-release/bin/Release/CHM | grep proj4
>>>>>         libvtkproj4-8.0.so.1 => /home/cmarsh/build-release/lib/VTK/lib/libvtkproj4-8.0.so.1
>>>>> (0x00002b517aa36000)
>>>>>         libproj.so.0 => /home/cmarsh/build-release/lib/proj4/lib/libproj.so.0
>>>>> (0x00002b51944d2000)
>>>>>
>>>>> If I use patchelf (https://github.com/NixOS/patchelf) to strip
>>>>> libvtkproj4-8.0.so.1 from my binary, my code runs without the error.
>>>>>
>>>>> I don't quite understand why I don't have this problem on other
>>>>> machines though. Looking at other machines I compile on (using a custom VTK
>>>>> build) I don't see any reference to the VTK libproj4 via ldd.
>>>>>
>>>>> Thus I attributed the error to vtkproj4 inclusion. However if you
>>>>> mangle names, then I agree I don't understand why this is happening.
>>>>>
>>>>> Cheers
>>>>> Chris
>>>>>
>>>>>
>>>>> On 12 January 2018 at 09:35, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>>>>>
>>>>>> Chris,
>>>>>>
>>>>>> 1. Going back to the beginning of the thread, I don't understand why
>>>>>> vtklibproj conflicts with another proj, given that we mangle all names. Can
>>>>>> you send us the errors.
>>>>>>
>>>>>> 2. If you do want to build with the system proj4
>>>>>>
>>>>>> Can you send up the output of:
>>>>>> cat CMakeCache.txt | grep LIBPROJ
>>>>>>
>>>>>> This is what I have:
>>>>>> LIBPROJ4_INCLUDE_DIR:PATH=/usr/include
>>>>>> LIBPROJ4_LIBRARIES:FILEPATH=/usr/lib/x86_64-linux-gnu/libproj.so.12
>>>>>> LIBPROJ_BINDIR:PATH=bin
>>>>>> LIBPROJ_DATADIR:PATH=share/proj
>>>>>> LIBPROJ_DOCDIR:PATH=doc/proj
>>>>>> LIBPROJ_INCLUDEDIR:PATH=include
>>>>>> LIBPROJ_LIBDIR:PATH=lib
>>>>>> LIBPROJ_M_LIB:FILEPATH=/usr/lib/x86_64-linux-gnu/libm.so
>>>>>> LIBPROJ_USE_THREAD:BOOL=ON
>>>>>> //Use system-installed LIBPROJ4
>>>>>> VTK_USE_SYSTEM_LIBPROJ4:BOOL=ON
>>>>>> //ADVANCED property for variable: LIBPROJ4_INCLUDE_DIR
>>>>>> LIBPROJ4_INCLUDE_DIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ4_LIBRARIES
>>>>>> LIBPROJ4_LIBRARIES-ADVANCED:INTERNAL=1
>>>>>> //MODIFIED property for variable: LIBPROJ4_LIBRARIES
>>>>>> LIBPROJ4_LIBRARIES-MODIFIED:INTERNAL=ON
>>>>>> //ADVANCED property for variable: LIBPROJ_BINDIR
>>>>>> LIBPROJ_BINDIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_DATADIR
>>>>>> LIBPROJ_DATADIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_DOCDIR
>>>>>> LIBPROJ_DOCDIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_INCLUDEDIR
>>>>>> LIBPROJ_INCLUDEDIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_LIBDIR
>>>>>> LIBPROJ_LIBDIR-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_M_LIB
>>>>>> LIBPROJ_M_LIB-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: LIBPROJ_USE_THREAD
>>>>>> LIBPROJ_USE_THREAD-ADVANCED:INTERNAL=1
>>>>>> //ADVANCED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>>>> VTK_USE_SYSTEM_LIBPROJ4-ADVANCED:INTERNAL=1
>>>>>> //MODIFIED property for variable: VTK_USE_SYSTEM_LIBPROJ4
>>>>>> VTK_USE_SYSTEM_LIBPROJ4-MODIFIED:INTERNAL=ON
>>>>>>
>>>>>>
>>>>>> Make sure
>>>>>> LIBPROJ4_INCLUDE_DIR
>>>>>> LIBPROJ4_LIBRARIES
>>>>>> VTK_USE_SYSTEM_LIBPROJ4
>>>>>> have the correct values.
>>>>>>
>>>>>> All those are cmake variables, you change them using ccmake or
>>>>>> cmake-gui.
>>>>>> After that you call:
>>>>>>
>>>>>> cmake .
>>>>>> make
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Fri, Jan 12, 2018 at 9:15 AM, Aashish Chaudhary <
>>>>>> aashish.chaudhary at kitware.com> wrote:
>>>>>>
>>>>>>> Dan Lipsa made last changes perhaps he may have some suggestions.
>>>>>>>
>>>>>>> - aashish
>>>>>>>
>>>>>>> On Thu, Jan 11, 2018 at 7:41 PM Chris Marsh <chris.marsh at usask.ca>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Looks like something is setting
>>>>>>>> PROJ4_INCLUDE_DIR
>>>>>>>> PROJ4_LIBRARY
>>>>>>>> to the system's proj4. I use a custom findproj4 that only looks
>>>>>>>> where I tell it.
>>>>>>>>
>>>>>>>> then I see that
>>>>>>>> LIB_FILES:INTERNAL
>>>>>>>> contains vtkproj4
>>>>>>>> LIB_FILES just holds all my 3rd party libraries I need to link
>>>>>>>> against.
>>>>>>>>
>>>>>>>> Chris Marsh
>>>>>>>> PhD Candidate
>>>>>>>> chrismarsh.ca
>>>>>>>>
>>>>>>>> 121 Research Drive
>>>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>>>> University of Saskatchewan
>>>>>>>> <https://maps.google.com/?q=121+Research+Drive+University+of+Saskatchewan&entry=gmail&source=g>
>>>>>>>>
>>>>>>>> On 11 January 2018 at 13:29, Ben Boeckel <ben.boeckel at kitware.com>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> On Thu, Jan 11, 2018 at 11:41:40 -0600, Chris Marsh wrote:
>>>>>>>>> > Thanks for the details. This doesn't seem to be working for me
>>>>>>>>> though. I've
>>>>>>>>> > tried passing VTK_USE_SYSTEM_libproj4 to cmake on the command
>>>>>>>>> line as well
>>>>>>>>> > as defining it as a CXXFLAG='-D VTK_USE_SYSTEM_libproj4",
>>>>>>>>> however neither
>>>>>>>>> > works. I still see the vtklibproj4 in the output of ldd.
>>>>>>>>>
>>>>>>>>> CMake should be getting the flag. If you do:
>>>>>>>>>
>>>>>>>>>     grep -i proj4 CMakeCache.txt
>>>>>>>>>
>>>>>>>>> do any variables stand out as potentially being set to use the
>>>>>>>>> internal
>>>>>>>>> one?
>>>>>>>>>
>>>>>>>>> --Ben
>>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Powered by www.kitware.com
>>>>>>>>
>>>>>>>> Visit other Kitware open-source projects at
>>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>>
>>>>>>>> Please keep messages on-topic and check the VTK FAQ at:
>>>>>>>> http://www.vtk.org/Wiki/VTK_FAQ
>>>>>>>>
>>>>>>>> Search the list archives at: http://markmail.org/search/?q=vtkusers
>>>>>>>>
>>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>>> https://vtk.org/mailman/listinfo/vtkusers
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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From iamdpak at gmail.com  Wed Jan 31 02:08:36 2018
From: iamdpak at gmail.com (vinmean)
Date: Wed, 31 Jan 2018 00:08:36 -0700 (MST)
Subject: [vtkusers] Where is the math behind world to display coordinates
 and vice versa, implemented in vtk?
Message-ID: <1517382516204-0.post@n5.nabble.com>

I want to recreate the transformation from display to world and world to
display coordinate system.  Where is the math behind coordinate conversion
implemented? I am unable to trace it from the viewport class that provides
the member function WorldToDisplay and DisplayToWorld.

	renderer->SetWorldPoint(wrld_cord);
	renderer->WorldToDisplay();
	renderer->GetDisplayPoint(scr_cord);

Please point me to the math either in the code or in some tutorials.



--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html

From staubchen03 at gmail.com  Wed Jan 31 06:17:43 2018
From: staubchen03 at gmail.com (Tanja Gerasimenko)
Date: Wed, 31 Jan 2018 14:17:43 +0300
Subject: [vtkusers] Default view is half transparent
Message-ID: <c6e697ec-681f-1b55-4261-f3bcd09c499b@gmail.com>

Hello!

I'm very new in vtk and I'm trying to visualize a triangular mesh
describing a geometry (something like stl) with vtk and Qt. The result
seems to be half transparent or something like that (see the picture).
When I visualize it using Paraview it looks like as a solid. I've tried
to auto orient normals and use ReverseSense but without success.

Could you please tell me, what am I doing wrong?

Thank you.


The code is:

vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();

??? points->SetNumberOfPoints(surf_mesh.pt.size());
??? for (uint i=0; i<surf_mesh.pt.size(); ++i)
??? {
??????? points->SetPoint(i, surf_mesh.pt[i].x, surf_mesh.pt[i].y,
surf_mesh.pt[i].z);
??? };

??? vtkSmartPointer<vtkCellArray> polys =
vtkSmartPointer<vtkCellArray>::New();

??? for (uint i=0; i<surf_mesh.tr.size(); ++i)
??? {
??????? polys->InsertNextCell(3);
??????? polys->InsertCellPoint(surf_mesh.tr[i].p1);
??????? polys->InsertCellPoint(surf_mesh.tr[i].p2);
??????? polys->InsertCellPoint(surf_mesh.tr[i].p3);
??? };

??? vtkPolyData * polydata = vtkPolyData::New();
??? polydata->SetPoints(points);
??? polydata->SetPolys(polys);


??? vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
??? mapper->SetInputData(polydata);

??? vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
??? actor->SetMapper(mapper);
??? actor->GetProperty()->SetRepresentationToSurface();
??? actor->GetProperty()->SetFrontfaceCulling(0);
??? actor->GetProperty()->SetBackfaceCulling(0);


??? renderer->AddActor(actor);

??? renderer->ResetCamera();

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# vtk DataFile Version 2.0 
2D mesh
ASCII
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-44.5222 8.0716 0.1500
-44.6472 7.8931 0.1500
-44.7392 7.6957 0.1500
-44.7956 7.4852 0.1500

POLYGONS 2224 8896
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3 782 781 690
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3 782 691 692
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3 775 675 776
3 775 671 672
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3 600 614 654
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3 783 692 693
3 783 693 694
3 757 600 668
3 757 668 670
3 757 670 671
3 757 671 775
3 588 589 765
3 613 600 757
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3 628 656 627
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3 626 656 657
3 786 785 698
3 577 578 760
3 786 698 699
3 566 761 579
3 582 583 762
3 615 655 628
3 772 605 773
3 576 577 760
3 772 604 605
3 603 604 772
3 581 762 761
3 581 582 762
3 581 761 566
3 615 642 655
3 575 760 759
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3 700 786 699
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3 573 574 759
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3 572 759 758
3 625 626 657
3 625 657 658
3 631 615 630
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3 571 572 758
3 631 633 634
3 631 634 635
3 570 571 758
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3 631 637 638
3 631 638 639
3 631 642 615
3 631 639 640
3 631 640 629
3 631 629 641
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3 631 649 650
3 569 570 758
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3 631 652 653
3 631 653 642
3 787 786 700
3 787 700 701
3 624 658 659
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3 744 733 734
3 744 734 735
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3 744 736 737
3 744 737 738
3 624 625 658
3 744 738 739
3 744 739 740
3 744 740 741
3 744 741 742
3 771 601 772
3 744 742 743
3 771 580 601
3 744 743 732
3 744 745 746
3 744 746 747
3 623 659 660
3 744 747 748
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3 744 749 750
3 744 750 751
3 744 751 752
3 744 752 753
3 623 624 659
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3 744 754 755
3 599 580 771
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3 702 787 701
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3 565 567 756
3 565 756 703
3 622 623 660
3 788 787 702
3 621 622 661
3 621 661 662
3 770 599 771
3 620 662 663
3 598 599 770
3 620 621 662
3 683 788 702
3 704 788 683
3 619 620 663
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3 597 598 770
3 618 619 664
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3 789 704 705
3 789 705 706
3 617 618 665
3 789 788 704
3 617 665 666
3 769 597 770
3 616 666 667
3 596 597 769
3 616 617 666
3 707 789 706
3 708 789 707
3 614 616 667
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3 595 596 769
3 790 708 709
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3 768 595 769
3 792 417 418
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3 405 796 797
3 405 404 796
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3 419 847 834
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3 793 418 419
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3 800 801 842
3 800 842 843
3 795 835 808
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3 799 800 843
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3 797 798 845
3 805 806 837
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3 811 795 810
3 811 812 813
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3 811 817 818
3 811 818 819
3 811 819 820
3 811 820 809
3 811 809 821
3 811 821 823
3 811 823 824
3 811 824 825
3 811 825 826
3 811 826 827
3 811 827 828
3 794 847 834
3 811 828 829
3 811 829 830
3 794 796 847
3 811 830 831
3 811 831 832
3 811 822 795
3 811 832 833
3 811 833 822
3 792 794 834
3 792 834 793
3 804 838 839
3 804 805 838
3 803 839 840
3 803 804 839
3 802 840 841
3 802 803 840
3 808 836 807
3 808 835 836
3 801 802 841
3 801 841 842
3 806 807 836
3 806 836 837
3 255 848 254
3 255 849 848
3 850 240 254
3 850 254 848
3 241 240 850
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3 242 852 853
3 242 241 852
3 243 853 854
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3 244 243 854
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3 248 858 859
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3 251 861 862
3 251 250 861
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3 253 252 863
3 228 864 851
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3 239 224 865
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3 877 271 224
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3 270 902 903
3 270 269 902
3 256 903 890
3 256 270 903
3 256 849 255
3 256 890 849
3 893 863 862
3 893 892 863
3 899 857 856
3 878 851 864
3 899 898 857
3 900 856 855
3 878 864 891
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3 901 900 855
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3 902 854 853
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3 894 862 861
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3 894 893 862
3 890 852 850
3 888 866 851
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3 888 851 878
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3 890 903 852
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3 888 878 889
3 895 894 861
3 849 850 848
3 849 890 850
3 895 861 860
3 896 860 859
3 896 895 860
3 897 859 858
3 897 896 859
3 891 864 863
3 898 858 857
3 891 863 892
3 898 897 858
3 762 756 758
3 762 758 759
3 762 759 760
3 762 760 761
3 762 763 764
3 762 764 765
3 762 765 766
3 762 766 767
3 762 767 768
3 762 768 769
3 762 769 770
3 762 770 771
3 762 771 772
3 762 772 773
3 762 773 774
3 762 774 757
3 762 757 775
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3 762 776 777
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3 762 778 779
3 762 779 780
3 762 780 781
3 762 781 782
3 762 782 783
3 762 783 784
3 762 784 785
3 762 785 786
3 762 786 787
3 762 787 788
3 762 788 789
3 762 789 790
3 762 790 791
3 762 791 756
3 923 906 924
3 923 924 941
3 922 941 940
3 922 923 941
3 921 940 939
3 921 922 940
3 920 939 938
3 920 921 939
3 919 938 937
3 919 920 938
3 918 937 936
3 918 919 937
3 917 936 935
3 917 918 936
3 916 935 934
3 916 917 935
3 915 934 933
3 915 916 934
3 914 933 932
3 914 915 933
3 913 932 931
3 913 914 932
3 912 931 930
3 912 913 931
3 911 930 929
3 911 912 930
3 910 929 928
3 910 911 929
3 909 910 928
3 909 928 927
3 908 909 927
3 908 927 926
3 907 908 926
3 907 926 925
3 905 907 925
3 905 925 904
3 946 904 925
3 946 925 926
3 946 926 927
3 946 927 928
3 946 928 929
3 946 929 930
3 946 930 931
3 946 931 932
3 946 932 933
3 946 933 934
3 946 934 935
3 946 935 936
3 946 936 937
3 946 937 938
3 946 938 939
3 946 939 940
3 946 940 941
3 946 941 924
3 946 924 942
3 946 942 943
3 946 943 944
3 946 944 945
3 946 947 948
3 946 948 949
3 946 949 950
3 946 950 951
3 946 951 952
3 946 952 953
3 946 953 954
3 946 954 955
3 946 955 956
3 946 956 957
3 946 957 958
3 946 958 904
3 975 905 904
3 975 904 958
3 974 958 957
3 974 975 958
3 973 957 956
3 973 974 957
3 972 956 955
3 972 973 956
3 971 955 954
3 971 972 955
3 970 954 953
3 970 971 954
3 969 953 952
3 969 970 953
3 968 952 951
3 968 969 952
3 967 951 950
3 967 968 951
3 966 950 949
3 966 967 950
3 965 949 948
3 965 966 949
3 964 948 947
3 964 965 948
3 963 947 946
3 963 964 947
3 962 946 945
3 962 963 946
3 961 962 945
3 961 945 944
3 960 961 944
3 960 944 943
3 959 960 943
3 959 943 942
3 906 959 942
3 906 942 924
3 963 905 907
3 963 907 908
3 963 908 909
3 963 909 910
3 963 910 911
3 963 911 912
3 963 912 913
3 963 913 914
3 963 914 915
3 963 915 916
3 963 916 917
3 963 917 918
3 963 918 919
3 963 919 920
3 963 920 921
3 963 921 922
3 963 922 923
3 963 923 906
3 963 906 959
3 963 959 960
3 963 960 961
3 963 961 962
3 963 964 965
3 963 965 966
3 963 966 967
3 963 967 968
3 963 968 969
3 963 969 970
3 963 970 971
3 963 971 972
3 963 972 973
3 963 973 974
3 963 974 975
3 963 975 905
3 1013 977 994
3 1013 996 977
3 1012 994 993
3 1012 1013 994
3 1011 993 992
3 1011 1012 993
3 1010 992 991
3 1010 1011 992
3 1009 991 990
3 1009 1010 991
3 1008 990 989
3 1008 1009 990
3 1007 989 988
3 1007 1008 989
3 1006 988 987
3 1006 1007 988
3 1005 987 986
3 1005 1006 987
3 1004 986 985
3 1004 1005 986
3 1003 985 984
3 1003 1004 985
3 1002 984 983
3 1002 1003 984
3 1001 983 982
3 1001 1002 983
3 1000 982 981
3 1000 1001 982
3 999 1000 981
3 999 981 980
3 998 999 980
3 998 980 979
3 997 979 978
3 997 998 979
3 995 978 976
3 995 997 978
3 1001 996 1014
3 1001 1014 1015
3 1001 1015 1016
3 1001 1016 1017
3 1001 1017 1018
3 1001 1018 1019
3 1001 1019 1020
3 1001 1020 1021
3 1001 1021 1022
3 1001 1022 1023
3 1001 1023 1024
3 1001 1024 1025
3 1001 1025 1026
3 1001 1026 1027
3 1001 1027 1028
3 1001 1028 1029
3 1001 1029 1030
3 1001 1030 995
3 1001 995 997
3 1001 997 998
3 1001 998 999
3 1001 999 1000
3 1001 1002 1003
3 1001 1003 1004
3 1001 1004 1005
3 1001 1005 1006
3 1001 1006 1007
3 1001 1007 1008
3 1001 1008 1009
3 1001 1009 1010
3 1001 1010 1011
3 1001 1011 1012
3 1001 1012 1013
3 1001 1013 996
3 982 977 1031
3 982 1031 1032
3 982 1032 1033
3 982 1033 1034
3 982 1034 1035
3 982 1035 1036
3 982 1036 1037
3 982 1037 1038
3 982 1038 1039
3 982 1039 1040
3 982 1040 1041
3 982 1041 1042
3 982 1042 1043
3 982 1043 1044
3 982 1044 1045
3 982 1045 1046
3 982 1046 1047
3 982 1047 976
3 982 976 978
3 982 978 979
3 982 979 980
3 982 980 981
3 982 983 984
3 982 984 985
3 982 985 986
3 982 986 987
3 982 987 988
3 982 988 989
3 982 989 990
3 982 990 991
3 982 991 992
3 982 992 993
3 982 993 994
3 982 994 977
3 1030 995 976
3 1030 976 1047
3 1029 1047 1046
3 1029 1030 1047
3 1028 1046 1045
3 1028 1029 1046
3 1027 1045 1044
3 1027 1028 1045
3 1026 1044 1043
3 1026 1027 1044
3 1025 1043 1042
3 1025 1026 1043
3 1024 1042 1041
3 1024 1025 1042
3 1023 1041 1040
3 1023 1024 1041
3 1022 1040 1039
3 1022 1023 1040
3 1021 1039 1038
3 1021 1022 1039
3 1020 1038 1037
3 1020 1021 1038
3 1019 1037 1036
3 1019 1020 1037
3 1018 1036 1035
3 1018 1019 1036
3 1017 1035 1034
3 1017 1018 1035
3 1016 1017 1034
3 1016 1034 1033
3 1015 1016 1033
3 1015 1033 1032
3 1014 1032 1031
3 1014 1015 1032
3 996 1031 977
3 996 1014 1031
3 1067 1050 1068
3 1067 1068 1085
3 1066 1085 1084
3 1066 1067 1085
3 1065 1084 1083
3 1065 1066 1084
3 1064 1083 1082
3 1064 1065 1083
3 1063 1082 1081
3 1063 1064 1082
3 1062 1081 1080
3 1062 1063 1081
3 1061 1080 1079
3 1061 1062 1080
3 1060 1079 1078
3 1060 1061 1079
3 1059 1078 1077
3 1059 1060 1078
3 1058 1077 1076
3 1058 1059 1077
3 1057 1076 1075
3 1057 1058 1076
3 1056 1075 1074
3 1056 1057 1075
3 1055 1074 1073
3 1055 1056 1074
3 1054 1073 1072
3 1054 1055 1073
3 1053 1054 1072
3 1053 1072 1071
3 1052 1053 1071
3 1052 1071 1070
3 1051 1052 1070
3 1051 1070 1069
3 1049 1051 1069
3 1049 1069 1048
3 1090 1048 1069
3 1090 1069 1070
3 1090 1070 1071
3 1090 1071 1072
3 1090 1072 1073
3 1090 1073 1074
3 1090 1074 1075
3 1090 1075 1076
3 1090 1076 1077
3 1090 1077 1078
3 1090 1078 1079
3 1090 1079 1080
3 1090 1080 1081
3 1090 1081 1082
3 1090 1082 1083
3 1090 1083 1084
3 1090 1084 1085
3 1090 1085 1068
3 1090 1068 1086
3 1090 1086 1087
3 1090 1087 1088
3 1090 1088 1089
3 1090 1091 1092
3 1090 1092 1093
3 1090 1093 1094
3 1090 1094 1095
3 1090 1095 1096
3 1090 1096 1097
3 1090 1097 1098
3 1090 1098 1099
3 1090 1099 1100
3 1090 1100 1101
3 1090 1101 1102
3 1090 1102 1048
3 1119 1049 1048
3 1119 1048 1102
3 1118 1102 1101
3 1118 1119 1102
3 1117 1101 1100
3 1117 1118 1101
3 1116 1100 1099
3 1116 1117 1100
3 1115 1099 1098
3 1115 1116 1099
3 1114 1098 1097
3 1114 1115 1098
3 1113 1097 1096
3 1113 1114 1097
3 1112 1096 1095
3 1112 1113 1096
3 1111 1095 1094
3 1111 1112 1095
3 1110 1094 1093
3 1110 1111 1094
3 1109 1093 1092
3 1109 1110 1093
3 1108 1092 1091
3 1108 1109 1092
3 1107 1091 1090
3 1107 1108 1091
3 1106 1090 1089
3 1106 1107 1090
3 1105 1106 1089
3 1105 1089 1088
3 1104 1105 1088
3 1104 1088 1087
3 1103 1104 1087
3 1103 1087 1086
3 1050 1103 1086
3 1050 1086 1068
3 1107 1049 1051
3 1107 1051 1052
3 1107 1052 1053
3 1107 1053 1054
3 1107 1054 1055
3 1107 1055 1056
3 1107 1056 1057
3 1107 1057 1058
3 1107 1058 1059
3 1107 1059 1060
3 1107 1060 1061
3 1107 1061 1062
3 1107 1062 1063
3 1107 1063 1064
3 1107 1064 1065
3 1107 1065 1066
3 1107 1066 1067
3 1107 1067 1050
3 1107 1050 1103
3 1107 1103 1104
3 1107 1104 1105
3 1107 1105 1106
3 1107 1108 1109
3 1107 1109 1110
3 1107 1110 1111
3 1107 1111 1112
3 1107 1112 1113
3 1107 1113 1114
3 1107 1114 1115
3 1107 1115 1116
3 1107 1116 1117
3 1107 1117 1118
3 1107 1118 1119
3 1107 1119 1049

POINT_DATA 1120 
SCALARS PtLabel int 
LOOKUP_TABLE default
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CELL_DATA 2224 
SCALARS TriLabel int 
LOOKUP_TABLE default
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 SCALARS SubSufrLabel int 
LOOKUP_TABLE default
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 
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From ken.martin at kitware.com  Wed Jan 31 08:45:03 2018
From: ken.martin at kitware.com (Ken Martin)
Date: Wed, 31 Jan 2018 08:45:03 -0500
Subject: [vtkusers] Default view is half transparent
In-Reply-To: <c6e697ec-681f-1b55-4261-f3bcd09c499b@gmail.com>
References: <c6e697ec-681f-1b55-4261-f3bcd09c499b@gmail.com>
Message-ID: <CANXz0SZVkv+uxqwHx9_Sg95umQOT_39777ErRCt=-80Sv8RZCQ@mail.gmail.com>

If you are on OSX with Qt5 but using the old vtk QtWidget then there is a
known issue where the zbuffer doesn't work I believe. The new tk OPenGL
widget widget fixes the issue.  If you are not on OSX then it must be
something else but your code above looks fine.

On Wed, Jan 31, 2018 at 6:17 AM, Tanja Gerasimenko <staubchen03 at gmail.com>
wrote:

> Hello!
>
> I'm very new in vtk and I'm trying to visualize a triangular mesh
> describing a geometry (something like stl) with vtk and Qt. The result
> seems to be half transparent or something like that (see the picture). When
> I visualize it using Paraview it looks like as a solid. I've tried to auto
> orient normals and use ReverseSense but without success.
>
> Could you please tell me, what am I doing wrong?
>
> Thank you.
>
>
> The code is:
>
> vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
>
>     points->SetNumberOfPoints(surf_mesh.pt.size());
>     for (uint i=0; i<surf_mesh.pt.size(); ++i)
>     {
>         points->SetPoint(i, surf_mesh.pt[i].x, surf_mesh.pt[i].y,
> surf_mesh.pt[i].z);
>     };
>
>     vtkSmartPointer<vtkCellArray> polys = vtkSmartPointer<vtkCellArray>:
> :New();
>
>     for (uint i=0; i<surf_mesh.tr.size(); ++i)
>     {
>         polys->InsertNextCell(3);
>         polys->InsertCellPoint(surf_mesh.tr[i].p1);
>         polys->InsertCellPoint(surf_mesh.tr[i].p2);
>         polys->InsertCellPoint(surf_mesh.tr[i].p3);
>     };
>
>     vtkPolyData * polydata = vtkPolyData::New();
>     polydata->SetPoints(points);
>     polydata->SetPolys(polys);
>
>
>     vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<
> vtkPolyDataMapper>::New();
>     mapper->SetInputData(polydata);
>
>     vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
>     actor->SetMapper(mapper);
>     actor->GetProperty()->SetRepresentationToSurface();
>     actor->GetProperty()->SetFrontfaceCulling(0);
>     actor->GetProperty()->SetBackfaceCulling(0);
>
>
>     renderer->AddActor(actor);
>
>     renderer->ResetCamera();
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
>


-- 
Ken Martin PhD
Distinguished Engineer
Kitware Inc.
28 Corporate Drive
Clifton Park NY 12065

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From david.thompson at kitware.com  Wed Jan 31 08:45:11 2018
From: david.thompson at kitware.com (David Thompson)
Date: Wed, 31 Jan 2018 08:45:11 -0500
Subject: [vtkusers] PCA statistics change
Message-ID: <F1C76B6E-3CAC-4362-B8E2-0705F82F9777@kitware.com>

Hi all,

Recently, Ben switched VTK to use Eigen's singular value decomposition. It reports some eigenvectors flipped. Notably, it seems to prefer a right-handed coordinate system as its output basis in 3D. This is great! ... but note that image tests that plot assessed values (i.e., the inputs projected into the new basis) may now return different results with the y axis assessed-value flipped.

Does anyone know if the VTKExamples repo does image-based tests? If so, I expect that may be causing a failure. However, it is unclear from the test output[1] whether an OpenGL/machine configuration error is masking an image test failure.

    Thanks,
    David

[1]: https://open.cdash.org/testDetails.php?test=623072463&build=5241493
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From allison.vacanti at kitware.com  Wed Jan 31 08:55:45 2018
From: allison.vacanti at kitware.com (Allie Vacanti)
Date: Wed, 31 Jan 2018 08:55:45 -0500
Subject: [vtkusers] Where is the math behind world to display
 coordinates and vice versa, implemented in vtk?
In-Reply-To: <1517382516204-0.post@n5.nabble.com>
References: <1517382516204-0.post@n5.nabble.com>
Message-ID: <CA+=e1osriLh7okkWrQSeg2+QxG9fRWA_b67=4S9owtxzsdAbDA@mail.gmail.com>

VTK uses the standard transformation process used in OpenGL. There are a
few tutorials online that give an overview of this, one that I've found
useful in the past is here:

http://www.songho.ca/opengl/gl_transform.html

As for the VTK-specific implementation, the code that implements this
process is spread out across several locations in vtkOpenGLCamera,
vtkRenderer, and vtkViewport. The class vtkCoordinate provides a convenient
API to convert coordinates between display/world or to any intermediate
coordinate system.

If you're only concerned with world <-> display and are interested in
seeing the math used, a more compact replication of this transformation
logic can be found in the (internal) FastDepthAwareCoordinateConverter
class here:

https://github.com/Kitware/VTK/blob/master/Rendering/Core/vtkBillboardTextActor3D.cxx#L62-L193

HTH,
Allie

On Wed, Jan 31, 2018 at 2:08 AM, vinmean <iamdpak at gmail.com> wrote:

> I want to recreate the transformation from display to world and world to
> display coordinate system.  Where is the math behind coordinate conversion
> implemented? I am unable to trace it from the viewport class that provides
> the member function WorldToDisplay and DisplayToWorld.
>
>         renderer->SetWorldPoint(wrld_cord);
>         renderer->WorldToDisplay();
>         renderer->GetDisplayPoint(scr_cord);
>
> Please point me to the math either in the code or in some tutorials.
>
>
>
> --
> Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From bill.lorensen at gmail.com  Wed Jan 31 10:03:34 2018
From: bill.lorensen at gmail.com (Bill Lorensen)
Date: Wed, 31 Jan 2018 07:03:34 -0800
Subject: [vtkusers] PCA statistics change
In-Reply-To: <F1C76B6E-3CAC-4362-B8E2-0705F82F9777@kitware.com>
References: <F1C76B6E-3CAC-4362-B8E2-0705F82F9777@kitware.com>
Message-ID: <CADZJ4hPivpG0fgRd1j_1qXkMkMz1CAmXNZgk7W6pBORGnt5mJA@mail.gmail.com>

Yes, VTKExamples does image based tests. They show up here:
https://open.cdash.org/viewTest.php?onlypassed&buildid=5241214
System name is mun.

I also submit a nightly under Remote Modules but I'm having some
OSMesa issues right now,,,


On Wed, Jan 31, 2018 at 5:45 AM, David Thompson
<david.thompson at kitware.com> wrote:
> Hi all,
>
> Recently, Ben switched VTK to use Eigen's singular value decomposition. It
> reports some eigenvectors flipped. Notably, it seems to prefer a
> right-handed coordinate system as its output basis in 3D. This is great! ...
> but note that image tests that plot assessed values (i.e., the inputs
> projected into the new basis) may now return different results with the y
> axis assessed-value flipped.
>
> Does anyone know if the VTKExamples repo does image-based tests? If so, I
> expect that may be causing a failure. However, it is unclear from the test
> output[1] whether an OpenGL/machine configuration error is masking an image
> test failure.
>
>     Thanks,
>     David
>
> [1]: https://open.cdash.org/testDetails.php?test=623072463&build=5241493
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>



-- 
Unpaid intern in BillsParadise at noware dot com

From david.thompson at kitware.com  Wed Jan 31 10:18:29 2018
From: david.thompson at kitware.com (David Thompson)
Date: Wed, 31 Jan 2018 10:18:29 -0500
Subject: [vtkusers] PCA statistics change
In-Reply-To: <CADZJ4hPivpG0fgRd1j_1qXkMkMz1CAmXNZgk7W6pBORGnt5mJA@mail.gmail.com>
References: <F1C76B6E-3CAC-4362-B8E2-0705F82F9777@kitware.com>
 <CADZJ4hPivpG0fgRd1j_1qXkMkMz1CAmXNZgk7W6pBORGnt5mJA@mail.gmail.com>
Message-ID: <747145D2-1340-4585-81BB-660A85231A18@kitware.com>

Hi Bill,

> Yes, VTKExamples does image based tests. They show up here:
> https://open.cdash.org/viewTest.php?onlypassed&buildid=5241214
> System name is mun.
> 
> I also submit a nightly under Remote Modules but I'm having some
> OSMesa issues right now,,,

Thanks! The fact that mun is passing means the image is still OK (I suppose because the view of the reprojected data is along the axis that's been flipped).

	David

From simon.esneault at gmail.com  Wed Jan 31 10:33:19 2018
From: simon.esneault at gmail.com (Simon Esneault)
Date: Wed, 31 Jan 2018 16:33:19 +0100
Subject: [vtkusers] Blue artefact on complex scene with VTK 8.1 +
 QVTKWidget + OSX and Intel chipset
In-Reply-To: <CAC9gB0ANQnGfbJVhWevP+DWtY-N8egQd1ixuz645ruE4N8ZtLg@mail.gmail.com>
References: <CAC9gB0CZhDtOvBYiiC-6oKFciEf4_g6KPsO=dzo6V1TWtcJ8Sg@mail.gmail.com>
 <CAC9gB0DwEz9C=s00-c9Pi7HOhbx03QdS+ExathD=rt7iWZdQpA@mail.gmail.com>
 <CAC9gB0ANQnGfbJVhWevP+DWtY-N8egQd1ixuz645ruE4N8ZtLg@mail.gmail.com>
Message-ID: <CAC9gB0BjD87n_jqucd8ef_8z_O8Ktm3A34-RRG1kTisd5Ve7EA@mail.gmail.com>

After further investigation, it appears that the problem only occurs
when SetUseDepthPeeling is enabled on the 3 vtkRenderer and does not occurs
when we disable this option...
It used to work fine with VTK 7.1, so this might be related to the new
implementation of the depth peeling that was written for VTK 8, no?
Shall I fill a bug for this ?

Thanks

2018-01-30 23:48 GMT+01:00 Simon Esneault <simon.esneault at gmail.com>:

> I forgot to say that the same code does not produce any blue artefact on
> an Nvidia or ATI card, and we were not able to reproduce this visual glitch
> on Windows either.
>
> If that can help ...
> Thanks
>
> Simon
>
> Le 30 janv. 2018 10:17, "Simon Esneault" <simon.esneault at gmail.com> a
> ?crit :
>
> Hello community
>
> After the migration to VTK 8.1 (from VTK 7.1), we are seing strange blue
> artefact in one of our scene as it can be seen in the following snapshots.
> And I'm having real hard time debugging that ...
>
> https://pasteboard.co/H5irkgl.png
> https://pasteboard.co/H5irBQ4.png
>
> The context is as follow :
> - Qt 5.3.2 on OSX  and Intel chipset (Iris or HD > 4000)
> - VTK 8.1
> - 3 layered vtkRenderer in one vtkRenderWindow in a QVTKWidget
> - GPUVolumeRendering on the first layer, some vtkActor/Polydata on the
> second layer, and some vtkActor2D/vtkTextActor on the third layer.
>
> This bug only appears after the view has been "reparented" (the user can
> choose different "layout") and is triggered when we add a new vtkPolyData
> to be rendered. If the user move the scene, all goes back to normal. It
> look like we're seing some garbage blue buffer, but I have no clue where to
> look at...
>
> Anyone have experienced something like this ?
>
> Thanks a lot
>
> PS: I know QVTKWidget is deprecated and we should move to
> QVTKOpenGLWidget, but our app is quite big and moving to Qt >= Qt 5.4 has
> some other implication so that is not solution for now ...
>
> --
> ------------------------------------------------------------------
> Simon Esneault
> Rennes, France
> ------------------------------------------------------------------
>
>
>


-- 
------------------------------------------------------------------
Simon Esneault
Rennes, France
------------------------------------------------------------------
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From polly_sukting at hotmail.com  Wed Jan 31 12:29:13 2018
From: polly_sukting at hotmail.com (Polly Lina)
Date: Wed, 31 Jan 2018 10:29:13 -0700 (MST)
Subject: [vtkusers] How to apply different colours to the extracted mean
 curvature in vtkcurvature
Message-ID: <1517419753024-0.post@n5.nabble.com>

I am applying vtkCurvature "SetCurvatureToMean" to extract the 3D face
polydata.
My question is:
Can anyone please help me on how can I apply different colours to the
extracted dataset by giving a mean curvature threshold.  Eg: The values >
0.05 label the surface to black, the values <=0.05 label the surface to
red..etc

This is my code:
vtkCurvatures> meanCurve = vtkCurvatures::New();
	meanCurve->SetInputConnection(reader->GetOutputPort());					
	meanCurve->SetCurvatureTypeToMean();
	meanCurve->Update();

vtkLookupTable* lut = vtkLookupTable::New();
	lut->SetNumberOfColors(2);

double H;
	for (int i = 0; i < nOfPnts; i++)
	{
		H =
(double)meanCurve->GetOutput()->GetPointData()->GetScalars()->GetTuple1(i);
		if (H >= 0.05)
		{
			lut->SetTableValue(0.0, 0.0, 0.0, 1);
		}
		else
		{
			lut->SetTableValue(1.0, 1.0, 1.0, 1);
		}
	}
lut->Build();

I could only get partially coloured and it is not what i expected.
Thanks and helps are so much appreciated!



--
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From bakkari.abdelkhalek at hotmail.fr  Wed Jan 31 13:43:42 2018
From: bakkari.abdelkhalek at hotmail.fr (Abdelkhalek Bakkari)
Date: Wed, 31 Jan 2018 18:43:42 +0000
Subject: [vtkusers] 3D Splines slice by slice to 3D spline
Message-ID: <VI1PR0902MB2046B5C361452963EB7821AE83FB0@VI1PR0902MB2046.eurprd09.prod.outlook.com>

Dear All,

I am trying to convert a 3D Splines slice by slices to one 3D spline and display it using vtk.

Any advice and suggestions will be greatly appreciated.

Best regards,

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From prabhu at aero.iitb.ac.in  Wed Jan 31 13:48:51 2018
From: prabhu at aero.iitb.ac.in (Prabhu Ramachandran)
Date: Thu, 1 Feb 2018 00:18:51 +0530
Subject: [vtkusers] VTK 8.1.0 wheels on pypi
Message-ID: <4b4635d8-b082-afed-0d31-68f05a551fbc@aero.iitb.ac.in>

Hi all,

Just a small announcement that we now have VTK-8.1.0 wheels available on pypi
(for OSX, Linux, and Windows). Installing VTK (on a 64 bit OS), is now as simple as:

?$ pip install vtk

More details are available here:

http://prabhuramachandran.blogspot.in/2018/01/vtk-810-wheels-for-all-platforms-on-pypi.html

Many thanks to all the folks who made this happen!

cheers,

Prabhu

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From aashish.chaudhary at kitware.com  Wed Jan 31 14:15:12 2018
From: aashish.chaudhary at kitware.com (Aashish Chaudhary)
Date: Wed, 31 Jan 2018 19:15:12 +0000
Subject: [vtkusers] VTK 8.1.0 wheels on pypi
In-Reply-To: <4b4635d8-b082-afed-0d31-68f05a551fbc@aero.iitb.ac.in>
References: <4b4635d8-b082-afed-0d31-68f05a551fbc@aero.iitb.ac.in>
Message-ID: <CAEw35Z9-YwnFHFXTjtiLYi6eLqz+2pBa_oAiTddzx0mMhKZUBA@mail.gmail.com>

this is great news Prabhu. Thank you for the hard-work.

On Wed, Jan 31, 2018 at 1:56 PM Prabhu Ramachandran <prabhu at aero.iitb.ac.in>
wrote:

> Hi all,
>
> Just a small announcement that we now have VTK-8.1.0 wheels available on
> pypi (for OSX, Linux, and Windows). Installing VTK (on a 64 bit OS), is now
> as simple as:
>
>  $ pip install vtk
>
> More details are available here:
>
>
> http://prabhuramachandran.blogspot.in/2018/01/vtk-810-wheels-for-all-platforms-on-pypi.html
>
> Many thanks to all the folks who made this happen!
>
> cheers,
>
> Prabhu
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at:
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Search the list archives at: http://markmail.org/search/?q=vtkusers
>
> Follow this link to subscribe/unsubscribe:
> https://vtk.org/mailman/listinfo/vtkusers
>
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From piccolagiorgi06 at gmail.com  Wed Jan 31 14:32:53 2018
From: piccolagiorgi06 at gmail.com (Georgia)
Date: Wed, 31 Jan 2018 12:32:53 -0700 (MST)
Subject: [vtkusers] How can I set the (0, 0,
 0) position in the middle of my object using vtk.js?
Message-ID: <1517427173888-0.post@n5.nabble.com>

How can I set the (0,0,0) position in the middle of my object? 
I have a STL file: 

  reader.setUrl(`./data/object.stl`, { binary: true }).then(() => { 
      mapper.setInputConnection(reader.getOutputPort()); 
      renderer.resetCamera(); 
}); 

But in the (0,0,0) there's NOT the center of my object, but the vertex of
the bounding box of it. How can I change it?



--
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From piccolagiorgi06 at gmail.com  Wed Jan 31 14:35:18 2018
From: piccolagiorgi06 at gmail.com (=?UTF-8?Q?Georgi=C3=A4_NeverMind?=)
Date: Wed, 31 Jan 2018 20:35:18 +0100
Subject: [vtkusers] How can I set the (0, 0,
 0) position in the middle of my object using vtk.js?
Message-ID: <CAFP_NpuNDoayE8C5jhmswk4mKxXDyC5j-3hFSstBY+eeZyk=_A@mail.gmail.com>

How can I set the (0,0,0) position in the middle of my object?
I have a STL file:

  reader.setUrl(`./data/object.stl`, { binary: true }).then(() => {
      mapper.setInputConnection(reader.getOutputPort());
      renderer.resetCamera();
});

But in the (0,0,0) there's NOT the center of my object, but the vertex of
the bounding box of it. How can I change it?
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From elvis.chen at gmail.com  Wed Jan 31 18:45:30 2018
From: elvis.chen at gmail.com (Elvis Chen)
Date: Wed, 31 Jan 2018 18:45:30 -0500
Subject: [vtkusers] transfer function for DRR
Message-ID: <CAEAx3cPrgH=+knwJUsGTBnX9F1abaisqSiu4V7QfBB4i_GykgA@mail.gmail.com>

hi,

I have a CT volume and I like to generate a Digitally Reconstructed
Radiograph using volume rendering. I understand that
itkRayCastInterpolateImageFunction probably do the job, but I am wondering
if anyone has designed an appropriate transfer function and generated a DRR
using volume rendering instead?

if so, do you mind sharing the transfer function?

regards,
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