<div dir="ltr">Hi All,<div> i have to write a polydata into a vtk and vtp file, so that i can see it in paraview, could you please suggest me, how to do this?</div><div><br></div><div><br></div><div>david</div><div>
<br></div><div><br></div><div><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Aug 15, 2013 at 2:42 AM, <span dir="ltr"><<a href="mailto:vtkusers-request@vtk.org" target="_blank">vtkusers-request@vtk.org</a>></span> wrote:<br>
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Today's Topics:<br>
<br>
1. Extract region with vtkTracerInteractorStyleImage (Fabian Torres)<br>
2. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (Sebastien Jourdain)<br>
3. return vtkSmartPointers from a function or signal/slot<br>
(Miro Drahos)<br>
4. Re: return vtkSmartPointers from a function or signal/slot<br>
(Shawn Waldon)<br>
5. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (rkwright)<br>
6. VTK 6.1 (Jude Pereira)<br>
7. vtkDistanceWidget handles bug in VTK 5.10.1 ? (Vincent Gratsac)<br>
8. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (Sean McBride)<br>
9. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (rkwright)<br>
10. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (Sean McBride)<br>
11. Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
Example 5) (Ric Wright)<br>
12. Re: Extract region with vtkTracerInteractorStyleImage<br>
(Fabian Torres)<br>
13. Re: (no subject) (Alex Malyushytskyy)<br>
14. One kind of vtkMultiBlockDataSet shows up in VTK 5.7 while<br>
not in VTK 6.0 (Chao Liang)<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Wed, 14 Aug 2013 11:32:58 -0500<br>
From: Fabian Torres <<a href="mailto:dae.wong@gmail.com">dae.wong@gmail.com</a>><br>
Subject: [vtkusers] Extract region with vtkTracerInteractorStyleImage<br>
To: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Message-ID: <<a href="mailto:8311C7A9-8B67-4322-AE21-9BBB9ECE4E99@gmail.com">8311C7A9-8B67-4322-AE21-9BBB9ECE4E99@gmail.com</a>><br>
Content-Type: text/plain; charset=us-ascii<br>
<br>
Hi all.<br>
<br>
I have a class that inherits from vtkTracerInteractorStyleImage. This class allows the user to draw closed lines in an image and extract the vtkPath and vtkPoints every time the class catches a tracerEvent.<br>
<br>
My problem is that I want to extract the value of every pixel inside the drew region. How can I do this using the information from the obtained vtkPath or vtkPoints.<br>
<br>
Thnanks all<br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Wed, 14 Aug 2013 12:42:57 -0400<br>
From: Sebastien Jourdain <<a href="mailto:sebastien.jourdain@kitware.com">sebastien.jourdain@kitware.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Cc: vtkusers <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID:<br>
<CABObKxdWVd2PkzZdG6kYdDtcZrG1RH82zz=srck-Ev5=_Yg5=<a href="mailto:g@mail.gmail.com">g@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="windows-1252"<br>
<br>
Hi Ric,<br>
<br>
I work mostly in C++ with ParaView, but I've used VTK in the past with Java<br>
and multi-threading without much trouble. But once again, I'm not talking<br>
about SWT, just pure Swing/AWT.<br>
My question related to the crash was on the AWT/Swing example not SWT.<br>
<br>
Seb<br>
<br>
<br>
On Wed, Aug 14, 2013 at 11:53 AM, rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>> wrote:<br>
<br>
> Seb,<br>
><br>
> Yes, the crash is the same. Sometimes it isn't even at close time - the<br>
> app will hang then crash. When I have been able to pause inside and look<br>
> or get a look at the stack it is buried way down in SWT or some inner<br>
> message loop in VTK. I strongly suspect that it is some threading issue<br>
> between VTK and SWT. You mentioned that VTK is not thread?safe while<br>
> Eclipse and SWT use LOTS of threads. Like you say, if you stick with VTK<br>
> alone (in ObjectiveC and/or C++) it is fine.<br>
><br>
> So if I want to write in Java and use Eclipse I a few choices:<br>
><br>
> - Give up on using Java and Eclipse, just use Xcode and Objective C/C++<br>
> - Carefully use VTK, avoiding any danger spots (e.g. Interactors) but<br>
> I won't know what to avoid until I get there<br>
> - Abandon trying to use VTK and go back to my VTK equivalent which is<br>
> far more primitive.<br>
><br>
> My problem is that I don't want to fight the tools. I don?t WANT to write<br>
> rendering systems, etc. Been there, done that (I've written parts 2<br>
> PostScript interpreters, was part of the SVG Viewer team at Adobe,<br>
> Illustrator, etc.). I'm looking for a system I can just use and not have<br>
> to fix or work around. It may be that the message is stop fighting and<br>
> accept using Xcode. Is that what you work in? Xcode and Objective C/C++?<br>
><br>
> Thanks<br>
> Ric<br>
><br>
><br>
> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722740&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722740&i=0</a>><br>
> ><br>
> Date: Wednesday, August 14, 2013 10:41 AM<br>
><br>
> To: Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722740&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722740&i=1</a>><br>
> ><br>
> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example<br>
> 5)<br>
><br>
> Hi Ric,<br>
><br>
> I have no experience with SWT, so I can't really help you here, but I can<br>
> ensure you that VTK works just fine on Mac OS X with Java 6 and<br>
> interaction. In fact, I never had any crash at close time.<br>
><br>
> Does the sample code from the vtk.jar crash in the same manner at close<br>
> time ?<br>
><br>
> Seb<br>
><br>
><br>
> On Wed, Aug 14, 2013 at 11:08 AM, rkwright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722739&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722739&i=0</a>><br>
> > wrote:<br>
><br>
>> Sebastien,<br>
>><br>
>> (BTW, thank you *very* much for your patience in answering my questions<br>
>> in such timely fashion).<br>
>><br>
>> I didn't see the SWT option when I built VTK the first time. However, I<br>
>> took a break and quickly built an Eclipse plugin using the code in<br>
>> wrapping/java/vtk/rendering. I created a view based on the<br>
>> swtConeRenderer.java code, substituting the parent SWT composite passed to<br>
>> the ViewPart creation step, passing that composite to the constructor of<br>
>> vtkSwtComponent. It ALMOST works except that it creates a wholly new<br>
>> window outside the actual Eclipse view. And that view works, complete with<br>
>> mouse-wheel scaling. BUT, when I close that view ? it crashes Eclipse,<br>
>> *exactly* as it does in the other demo I put together using the SWT_AWT<br>
>> bridge. Same message, same crash in Eclipse. Clearly, something goes<br>
>> horribly awry down in the bowels of the native code in SWT.<br>
>><br>
>> So I will continue to experiment with VTK but avoid anything to do with<br>
>> interactors. But I return to my earlier question: Am I likely to run into<br>
>> similar problems or is it largely or wholly in the interactors that VTK<br>
>> starts/handles its own event loops? So far the only problems I have seen<br>
>> are when interactors are involved (though my experience is rather limited,<br>
>> of course).<br>
>><br>
>> Thanks<br>
>> Ric<br>
>><br>
>><br>
>> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722738&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722738&i=0</a>><br>
>> ><br>
>> Date: Wednesday, August 14, 2013 9:53 AM<br>
>><br>
>> To: Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722738&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722738&i=1</a>><br>
>> ><br>
>> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example<br>
>> 5)<br>
>><br>
>> You need to build VTK with the SWT component ON. Moreover, vtkRenderWIndowInteractor<br>
>> does not spawn a new event loop as VTK is NOT thread safe.<br>
>><br>
>><br>
>> On Wed, Aug 14, 2013 at 10:31 AM, rkwright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722733&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722733&i=0</a>><br>
>> > wrote:<br>
>><br>
>>> I have been working through the samples in the jar. The only failure so<br>
>>> far is the vtkRenderWindowInteractor.<br>
>>><br>
>>> I was not aware of a SWT component in VTK. I see a Java file<br>
>>> vtkSwtComponent.java but it isn't clear to me that it is going to solve my<br>
>>> problems. There are two issues I see:<br>
>>><br>
>>> - vtkSwtComponent appears to use the SWT OpenGL canvas widget. This<br>
>>> is largely unsupported in SWT and was half-broken last time I looked at it.<br>
>>> I gave up on it long ago and turned to JOGL embedding in SWT via the<br>
>>> bridge (which works for me at present)<br>
>>> - It's not clear how this would solve the other issue<br>
>>> where vtkRenderWIndowInteractor spawns its own event loop and that causes<br>
>>> problems with SWT ? or does vtkRenderWIndowInteractor not use any AWT<br>
>>> utilities or methods?<br>
>>><br>
>>> I'll experiment with the vtkSwtComponent (I see one simple example file,<br>
>>> swtConeRendering.java) and see if that helps. Though there is no SWT<br>
>>> support in vtk.jar so I'll guess I'll have to include the SWT files<br>
>>> directly in my project.<br>
>>><br>
>>> Thanks for your advice.<br>
>>><br>
>>> Ric<br>
>>><br>
>>> BTW, I am running Apple's Java 1.6.0_51-b11-457-11M4509. 64 bit<br>
>>><br>
>>> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722724&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722724&i=0</a>><br>
>>> ><br>
>>> Date: Wednesday, August 14, 2013 8:42 AM<br>
>>> To: Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722724&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722724&i=1</a>><br>
>>> ><br>
>>> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone<br>
>>> Example 5)<br>
>>><br>
>>> Just read the sample codes that are provided in the vtk.jar or in the<br>
>>> Source code under Wrapping/Java/vtk/sample, they should be pretty strait<br>
>>> forward.<br>
>>> Moreover, VTK do provide a SWT component for rendering if you build it,<br>
>>> so you shouldn't have any event loop issue...<br>
>>><br>
>>> Seb<br>
>>><br>
>>><br>
>>> On Wed, Aug 14, 2013 at 9:30 AM, Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=0</a>><br>
>>> > wrote:<br>
>>><br>
>>>> So did some more spelunking and it looks like this is just a basic<br>
>>>> incompatibility for SWT and AWT ? in the specific case where AWT is trying<br>
>>>> to start their own event loop once SWT has started. Previously, in my<br>
>>>> other work, I handled events on my own ? I didn't ask or expect AWT to<br>
>>>> start or manage it's own events. I used AWT basically to host the OpenGL<br>
>>>> canvas (based on JOGL). But when one invokes the vtkRenderWIndowInteractor<br>
>>>> an event loop IS spawned and the causes various weird problems.<br>
>>>><br>
>>>> There is a fairly long summary of some of the issues here:<br>
>>>><br>
>>>> <a href="http://marc.info/?l=openjdk-awt-dev&m=135818602009136&w=2" target="_blank">http://marc.info/?l=openjdk-awt-dev&m=135818602009136&w=2</a><br>
>>>><br>
>>>> So the question that comes to my mind is how dependent is the rest of<br>
>>>> VTK on starting its own event loops? I.e. Can I use the rest of VTK and<br>
>>>> its pipeline to perform graphics, manage datasets, etc. I am willing to<br>
>>>> give up the Interactor and its mimicking of trackball if everything else is<br>
>>>> likely to work. But if spawning its own event loop(s) is intrinsic to how<br>
>>>> most of VTK works then I'm probably dead in the water.<br>
>>>><br>
>>>> Thoughts or suggestions?<br>
>>>><br>
>>>> Thanks<br>
>>>> Ric<br>
>>>><br>
>>>><br>
>>>> From: Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=1</a>><br>
>>>> ><br>
>>>><br>
>>>> Date: Tuesday, August 13, 2013 12:59 PM<br>
>>>> To: Sebastien Jourdain <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=2" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=2</a>><br>
>>>> ><br>
>>>> Cc: Sean McBride <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=3" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=3</a>>>,<br>
>>>> vtkusers <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=4" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=4</a>><br>
>>>> ><br>
>>>><br>
>>>> Subject: Re: [vtkusers] VTK6 and Java Cone Example 5<br>
>>>><br>
>>>> An update on this. I ported over some of my other Eclipse work and<br>
>>>> adapted it to VTK. It is pushed to my account on github and there is a<br>
>>>> writeup here: <a href="http://rkwright.github.io/geofx-pages/vtkview.html" target="_blank">http://rkwright.github.io/geofx-pages/vtkview.html</a>.<br>
>>>> There are 3 articles in there. The latest rev of the code is here:<br>
>>>> <a href="https://github.com/rkwright/vtkscene" target="_blank">https://github.com/rkwright/vtkscene</a> in the develop branch.<br>
>>>><br>
>>>> Mostly, it works great. However, when I tried the fifth cone example,<br>
>>>> which has the problematic vtkRenderWindowInteractor, I ran into similar<br>
>>>> problems as before. I instantiated it with a valid vtkPanel.RenderWindow<br>
>>>> but it still goes off into the ozone, sometimes crashing the native<br>
>>>> vtkOpenGL dylib.<br>
>>>><br>
>>>> I'm going to skip the interactor for now and move on to see if I run<br>
>>>> into more problems. If not, I can probably live without that widget but the<br>
>>>> problems there might be symptomatic of deeper problems on OSX 64 bit<br>
>>>> systems.<br>
>>>><br>
>>>> Any further suggestions would be welcome.<br>
>>>><br>
>>>> Thanks<br>
>>>> Ric<br>
>>>><br>
>>>><br>
>>>> From: Sebastien Jourdain <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=5" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=5</a>><br>
>>>> ><br>
>>>><br>
>>>> Date: Tuesday, August 6, 2013 8:56 AM<br>
>>>> To: Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=6" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=6</a>><br>
>>>> ><br>
>>>> Cc: Sean McBride <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=7" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=7</a>>>,<br>
>>>> vtkusers <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=8" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=8</a>><br>
>>>> ><br>
>>>><br>
>>>> Subject: Re: [vtkusers] VTK6 and Java Cone Example 5<br>
>>>><br>
>>>> In Java you should use the Java specific classes anyway like<br>
>>>> vtkPanel/vtkCanvas or the new version of them used in the vtk.sample<br>
>>>> package of the vtk.jar...<br>
>>>><br>
>>>> The purpose of those example was to show the possible match between the<br>
>>>> different languages...<br>
>>>><br>
>>>> Nothing more I believe,<br>
>>>><br>
>>>> Seb<br>
>>>><br>
>>>><br>
>>>> On Tue, Aug 6, 2013 at 8:52 AM, Ric Wright <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=9" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=9</a>><br>
>>>> > wrote:<br>
>>>><br>
>>>>> Ah, OK. Well, I don't know what to do here. Is this happening to<br>
>>>>> others?<br>
>>>>> Should I file a bug? Just try to work around it by not using<br>
>>>>> RenderWindowInteractors (sounds kind of lame). Or?<br>
>>>>><br>
>>>>> Suggestions?<br>
>>>>><br>
>>>>> Thanks<br>
>>>>> Ric<br>
>>>>><br>
>>>>><br>
>>>>> On 8/5/13 4:15 PM, "Sean McBride" <[hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=10" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=10</a>>><br>
>>>>> wrote:<br>
>>>>><br>
>>>>> >On Mon, 5 Aug 2013 16:10:55 -0500, Ric Wright said:<br>
>>>>> ><br>
>>>>> >>Well, a little playing around didn't seem to help, but I am frankly<br>
>>>>> not<br>
>>>>> >>an<br>
>>>>> >>expert on threads. However, it seems to me that the source of the<br>
>>>>> >>problem<br>
>>>>> >>is that the vtkRenderWindowInteractor gets initialized then the<br>
>>>>> start()<br>
>>>>> >>method creates an event loop that is monitored by the<br>
>>>>> >>vtkRenderWindowInteractor. I suspect that start() method spawns a<br>
>>>>> new<br>
>>>>> >>thread to listen to the events and it is the spawning of that thread<br>
>>>>> that<br>
>>>>> >>causes the exception.<br>
>>>>> ><br>
>>>>> >VTK's Cocoa classes never create any threads.<br>
>>>>> ><br>
>>>>> >Cheers,<br>
>>>>> ><br>
>>>>> >--<br>
>>>>> >____________________________________________________________<br>
>>>>> >Sean McBride, B. Eng [hidden email]<<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=11" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=11</a>><br>
>>>>><br>
>>>>> >Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
>>>>> >Mac Software Developer Montr?al, Qu?bec, Canada<br>
>>>>> ><br>
>>>>> ><br>
>>>>><br>
>>>>><br>
>>>>><br>
>>>><br>
>>><br>
>>> _______________________________________________<br>
>>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>><br>
>>> Visit other Kitware open-source projects at<br>
>>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>><br>
>>> Please keep messages on-topic and check the VTK FAQ at:<br>
>>> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
>>><br>
>>> Follow this link to subscribe/unsubscribe:<br>
>>> <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
>>><br>
>>><br>
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>>> ------------------------------<br>
>>> View this message in context: Re: AWT + SWT + Event Loops (was Re: VTK6<br>
>>> and Java Cone Example 5)<<a href="http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722724.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722724.html</a>><br>
>>> Sent from the VTK - Users mailing list archive<<a href="http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html</a>>at Nabble.com.<br>
>>><br>
>>> _______________________________________________<br>
>>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>>><br>
>>> Visit other Kitware open-source projects at<br>
>>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>>><br>
>>> Please keep messages on-topic and check the VTK FAQ at:<br>
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>>><br>
>>><br>
>><br>
>> _______________________________________________<br>
>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>><br>
>> Visit other Kitware open-source projects at<br>
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>> Please keep messages on-topic and check the VTK FAQ at:<br>
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>> ------------------------------<br>
>> View this message in context: Re: AWT + SWT + Event Loops (was Re: VTK6<br>
>> and Java Cone Example 5)<<a href="http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722738.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722738.html</a>><br>
>> Sent from the VTK - Users mailing list archive<<a href="http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html</a>>at Nabble.com.<br>
>><br>
>> _______________________________________________<br>
>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>><br>
>> Visit other Kitware open-source projects at<br>
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>><br>
>> Please keep messages on-topic and check the VTK FAQ at:<br>
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><br>
> _______________________________________________<br>
> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
><br>
> Visit other Kitware open-source projects at<br>
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><br>
> Please keep messages on-topic and check the VTK FAQ at:<br>
> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
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><br>
> ------------------------------<br>
> View this message in context: Re: AWT + SWT + Event Loops (was Re: VTK6<br>
> and Java Cone Example 5)<<a href="http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722740.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK6-and-Java-Examples-tp5722474p5722740.html</a>><br>
> Sent from the VTK - Users mailing list archive<<a href="http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html" target="_blank">http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html</a>>at Nabble.com.<br>
><br>
> _______________________________________________<br>
> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
><br>
> Visit other Kitware open-source projects at<br>
> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
><br>
> Please keep messages on-topic and check the VTK FAQ at:<br>
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------------------------------<br>
<br>
Message: 3<br>
Date: Wed, 14 Aug 2013 09:45:53 -0700<br>
From: Miro Drahos <<a href="mailto:mdrahos@robodoc.com">mdrahos@robodoc.com</a>><br>
Subject: [vtkusers] return vtkSmartPointers from a function or<br>
signal/slot<br>
To: <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID: <<a href="mailto:520BB441.3090500@robodoc.com">520BB441.3090500@robodoc.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"<br>
<br>
Hi all,<br>
I am having really hard times passing on reference to the objects that<br>
are stored as vtkSmartPointer<T> as private data within a class. E.g.:<br>
class MyClass<br>
{<br>
public:<br>
...<br>
private:<br>
vtkSmartPointer<vtkPolyData> surface;<br>
};<br>
<br>
What is the best way to pass 'surface' via signal/slot mechanism of Qt?<br>
I thought I'd create a public method<br>
vtkPolyData * MyClass::getSurface() { return surface.GetPointer(); }<br>
The problem is that GetPointer() returns *const* T* which the compiler<br>
complains about when I later want to use it. As a matter of fact, all<br>
vtkSmartPointer's public methods return const something.<br>
<br>
What would be the preferred way to pass objects stored as<br>
vtkSmartPointer<T> object?<br>
1.) T* MyClass::getT() const { return object.GetPointer(); }<br>
2.) vtkSmartPointer<T> MyClass::getT() { return object; }<br>
3.) something else?<br>
<br>
I want to pass the object via signal/slot mechanism. What would be the<br>
best way?<br>
A.) signal doneSurfaceProcessing(vtkPolyData &);<br>
B.) signal doneSurfaceProcessing(vtkPolyData *);<br>
C.) signal doneSurfaceProcessing(vtkSmartPointer<vtkPolyData>);<br>
<br>
The idea is to send off the signal with something like<br>
emit doneSurfaceProcessing(myclass->getSurface());<br>
<br>
then the slot would be<br>
setSurface(???) //vtkSmartPointer<T> or T* or T& ?<br>
<br>
Thank you!!<br>
Miro<br>
<br>
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<br>
Message: 4<br>
Date: Wed, 14 Aug 2013 12:51:02 -0400<br>
From: Shawn Waldon <<a href="mailto:swaldon@cs.unc.edu">swaldon@cs.unc.edu</a>><br>
Subject: Re: [vtkusers] return vtkSmartPointers from a function or<br>
signal/slot<br>
To: Miro Drahos <<a href="mailto:mdrahos@robodoc.com">mdrahos@robodoc.com</a>><br>
Cc: VTK <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID:<br>
<<a href="mailto:CAKqg6a6VsYPACE7sZSBdTHJ4E9iEKdMQ57W8aQC-b9G3cQG15g@mail.gmail.com">CAKqg6a6VsYPACE7sZSBdTHJ4E9iEKdMQ57W8aQC-b9G3cQG15g@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hi Miro,<br>
<br>
Most of your questions about vtkSmartPointer are answered in this tutorial:<br>
<a href="http://www.vtk.org/Wiki/VTK/Tutorials/SmartPointers" target="_blank">http://www.vtk.org/Wiki/VTK/Tutorials/SmartPointers</a><br>
<br>
I'll let someone else handle the Qt signal/slots questions since I haven't<br>
tried to do that. But I would point out that VTK is not thread-safe, so if<br>
you are trying to use this mechanism to communicate between threads make<br>
sure you know what you are getting into first.<br>
<br>
HTH,<br>
Shawn<br>
<br>
<br>
On Wed, Aug 14, 2013 at 12:45 PM, Miro Drahos <<a href="mailto:mdrahos@robodoc.com">mdrahos@robodoc.com</a>> wrote:<br>
<br>
> Hi all,<br>
> I am having really hard times passing on reference to the objects that are<br>
> stored as vtkSmartPointer<T> as private data within a class. E.g.:<br>
> class MyClass<br>
> {<br>
> public:<br>
> ...<br>
> private:<br>
> vtkSmartPointer<vtkPolyData> surface;<br>
> };<br>
><br>
> What is the best way to pass 'surface' via signal/slot mechanism of Qt?<br>
> I thought I'd create a public method<br>
> vtkPolyData * MyClass::getSurface() { return surface.GetPointer(); }<br>
> The problem is that GetPointer() returns *const* T* which the compiler<br>
> complains about when I later want to use it. As a matter of fact, all<br>
> vtkSmartPointer's public methods return const something.<br>
><br>
> What would be the preferred way to pass objects stored as<br>
> vtkSmartPointer<T> object?<br>
> 1.) T* MyClass::getT() const { return object.GetPointer(); }<br>
> 2.) vtkSmartPointer<T> MyClass::getT() { return object; }<br>
> 3.) something else?<br>
><br>
> I want to pass the object via signal/slot mechanism. What would be the<br>
> best way?<br>
> A.) signal doneSurfaceProcessing(vtkPolyData &);<br>
> B.) signal doneSurfaceProcessing(vtkPolyData *);<br>
> C.) signal doneSurfaceProcessing(vtkSmartPointer<vtkPolyData>);<br>
><br>
> The idea is to send off the signal with something like<br>
> emit doneSurfaceProcessing(myclass->getSurface());<br>
><br>
> then the slot would be<br>
> setSurface(???) //vtkSmartPointer<T> or T* or T& ?<br>
><br>
> Thank you!!<br>
> Miro<br>
><br>
><br>
> _______________________________________________<br>
> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
><br>
> Visit other Kitware open-source projects at<br>
> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
><br>
> Please keep messages on-topic and check the VTK FAQ at:<br>
> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
><br>
> Follow this link to subscribe/unsubscribe:<br>
> <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
><br>
><br>
<br>
<br>
--<br>
Shawn Waldon<br>
Graduate Research Assistant<br>
Department of Computer Science<br>
University of North Carolina at Chapel Hill<br>
<a href="mailto:swaldon@cs.unc.edu">swaldon@cs.unc.edu</a><br>
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<br>
Message: 5<br>
Date: Wed, 14 Aug 2013 10:00:08 -0700 (PDT)<br>
From: rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Message-ID: <<a href="mailto:CE312000.1037C4%25rkwright@geofx.com">CE312000.1037C4%rkwright@geofx.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Seb,<br>
<br>
Right. The crashes are only when SWT is involved. I'll keep poking but like<br>
I say, I don't want to learn/build new tooling (if I can help it). But I<br>
find VTK kind of enigmatic in many respects. For example, I thought I would<br>
try the Cocoa version, just for fun. So I created a new VTK source and<br>
build folders, selected Xcode then ran configure, then generate. It said<br>
"Configure done", "Generate done". Then what? There's no makefile I can<br>
see to run the actual build. Is there another cmake step? I don't recall<br>
there being one when I generated the Java wrappers. I just ran make in the<br>
config then generate and there was a makefile. But this time no makefile.<br>
What am I missing?<br>
<br>
Anyway, back to my real job. I'll take another look later. Again, thanks<br>
for your help.<br>
<br>
Ric<br>
<br>
<br>
From: "Sebastien Jourdain-2 [via VTK]"<br>
<<a href="mailto:ml-node%2Bs1045678n5722742h40@n5.nabble.com">ml-node+s1045678n5722742h40@n5.nabble.com</a>><br>
Date: Wednesday, August 14, 2013 11:43 AM<br>
To: Ric Wright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example 5)<br>
<br>
Hi Ric,<br>
<br>
I work mostly in C++ with ParaView, but I've used VTK in the past with Java<br>
and multi-threading without much trouble. But once again, I'm not talking<br>
about SWT, just pure Swing/AWT.<br>
My question related to the crash was on the AWT/Swing example not SWT.<br>
<br>
Seb<br>
<br>
<br>
On Wed, Aug 14, 2013 at 11:53 AM, rkwright <[hidden email]<br>
</user/SendEmail.jtp?type=node&node=5722742&i=0> > wrote:<br>
> Seb,<br>
><br>
> Yes, the crash is the same. Sometimes it isn't even at close time - the app<br>
> will hang then crash. When I have been able to pause inside and look or get a<br>
> look at the stack it is buried way down in SWT or some inner message loop in<br>
> VTK. I strongly suspect that it is some threading issue between VTK and SWT.<br>
> You mentioned that VTK is not thread?safe while Eclipse and SWT use LOTS of<br>
> threads. Like you say, if you stick with VTK alone (in ObjectiveC and/or C++)<br>
> it is fine.<br>
><br>
> So if I want to write in Java and use Eclipse I a few choices:<br>
> * Give up on using Java and Eclipse, just use Xcode and Objective C/C++<br>
> * Carefully use VTK, avoiding any danger spots (e.g. Interactors) but I won't<br>
> know what to avoid until I get there<br>
> * Abandon trying to use VTK and go back to my VTK equivalent which is far more<br>
> primitive.<br>
> My problem is that I don't want to fight the tools. I don?t WANT to write<br>
> rendering systems, etc. Been there, done that (I've written parts 2<br>
> PostScript interpreters, was part of the SVG Viewer team at Adobe,<br>
> Illustrator, etc.). I'm looking for a system I can just use and not have to<br>
> fix or work around. It may be that the message is stop fighting and accept<br>
> using Xcode. Is that what you work in? Xcode and Objective C/C++?<br>
><br>
> Thanks<br>
> Ric<br>
><br>
><br>
> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<br>
> <<a href="http://user/SendEmail.jtp?type=node&node=5722740&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722740&i=0</a>> ><br>
> Date: Wednesday, August 14, 2013 10:41 AM<br>
><br>
> To: Ric Wright <[hidden email]<br>
> <<a href="http://user/SendEmail.jtp?type=node&node=5722740&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722740&i=1</a>> ><br>
> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example 5)<br>
><br>
> Hi Ric,<br>
><br>
> I have no experience with SWT, so I can't really help you here, but I can<br>
> ensure you that VTK works just fine on Mac OS X with Java 6 and interaction.<br>
> In fact, I never had any crash at close time.<br>
><br>
> Does the sample code from the vtk.jar crash in the same manner at close time ?<br>
><br>
> Seb<br>
><br>
><br>
> On Wed, Aug 14, 2013 at 11:08 AM, rkwright <[hidden email]<br>
> <<a href="http://user/SendEmail.jtp?type=node&node=5722739&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722739&i=0</a>> > wrote:<br>
>> Sebastien,<br>
>><br>
>> (BTW, thank you very much for your patience in answering my questions in such<br>
>> timely fashion).<br>
>><br>
>> I didn't see the SWT option when I built VTK the first time. However, I took<br>
>> a break and quickly built an Eclipse plugin using the code in<br>
>> wrapping/java/vtk/rendering. I created a view based on the<br>
>> swtConeRenderer.java code, substituting the parent SWT composite passed to<br>
>> the ViewPart creation step, passing that composite to the constructor of<br>
>> vtkSwtComponent. It ALMOST works except that it creates a wholly new window<br>
>> outside the actual Eclipse view. And that view works, complete with<br>
>> mouse-wheel scaling. BUT, when I close that view ? it crashes Eclipse,<br>
>> exactly as it does in the other demo I put together using the SWT_AWT bridge.<br>
>> Same message, same crash in Eclipse. Clearly, something goes horribly awry<br>
>> down in the bowels of the native code in SWT.<br>
>><br>
>> So I will continue to experiment with VTK but avoid anything to do with<br>
>> interactors. But I return to my earlier question: Am I likely to run into<br>
>> similar problems or is it largely or wholly in the interactors that VTK<br>
>> starts/handles its own event loops? So far the only problems I have seen are<br>
>> when interactors are involved (though my experience is rather limited, of<br>
>> course).<br>
>><br>
>> Thanks<br>
>> Ric<br>
>><br>
>><br>
>> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<br>
>> <<a href="http://user/SendEmail.jtp?type=node&node=5722738&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722738&i=0</a>> ><br>
>> Date: Wednesday, August 14, 2013 9:53 AM<br>
>><br>
>> To: Ric Wright <[hidden email]<br>
>> <<a href="http://user/SendEmail.jtp?type=node&node=5722738&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722738&i=1</a>> ><br>
>> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example 5)<br>
>><br>
>> You need to build VTK with the SWT component ON. Moreover,<br>
>> vtkRenderWIndowInteractor does not spawn a new event loop as VTK is NOT<br>
>> thread safe.<br>
>><br>
>><br>
>> On Wed, Aug 14, 2013 at 10:31 AM, rkwright <[hidden email]<br>
>> <<a href="http://user/SendEmail.jtp?type=node&node=5722733&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722733&i=0</a>> > wrote:<br>
>>> I have been working through the samples in the jar. The only failure so far<br>
>>> is the vtkRenderWindowInteractor.<br>
>>><br>
>>> I was not aware of a SWT component in VTK. I see a Java file<br>
>>> vtkSwtComponent.java but it isn't clear to me that it is going to solve my<br>
>>> problems. There are two issues I see:<br>
>>> * vtkSwtComponent appears to use the SWT OpenGL canvas widget. This is<br>
>>> largely unsupported in SWT and was half-broken last time I looked at it. I<br>
>>> gave up on it long ago and turned to JOGL embedding in SWT via the bridge<br>
>>> (which works for me at present)<br>
>>> * It's not clear how this would solve the other issue where<br>
>>> vtkRenderWIndowInteractor spawns its own event loop and that causes problems<br>
>>> with SWT ? or does vtkRenderWIndowInteractor not use any AWT utilities or<br>
>>> methods?<br>
>>> I'll experiment with the vtkSwtComponent (I see one simple example file,<br>
>>> swtConeRendering.java) and see if that helps. Though there is no SWT support<br>
>>> in vtk.jar so I'll guess I'll have to include the SWT files directly in my<br>
>>> project.<br>
>>><br>
>>> Thanks for your advice.<br>
>>><br>
>>> Ric<br>
>>><br>
>>> BTW, I am running Apple's Java 1.6.0_51-b11-457-11M4509. 64 bit<br>
>>><br>
>>> From: "Sebastien Jourdain-2 [via VTK]" <[hidden email]<br>
>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722724&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722724&i=0</a>> ><br>
>>> Date: Wednesday, August 14, 2013 8:42 AM<br>
>>> To: Ric Wright <[hidden email]<br>
>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722724&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722724&i=1</a>> ><br>
>>> Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example 5)<br>
>>><br>
>>> Just read the sample codes that are provided in the vtk.jar or in the Source<br>
>>> code under Wrapping/Java/vtk/sample, they should be pretty strait forward.<br>
>>> Moreover, VTK do provide a SWT component for rendering if you build it, so<br>
>>> you shouldn't have any event loop issue...<br>
>>><br>
>>> Seb<br>
>>><br>
>>><br>
>>> On Wed, Aug 14, 2013 at 9:30 AM, Ric Wright <[hidden email]<br>
>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=0" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=0</a>> > wrote:<br>
>>>> So did some more spelunking and it looks like this is just a basic<br>
>>>> incompatibility for SWT and AWT ? in the specific case where AWT is trying<br>
>>>> to start their own event loop once SWT has started. Previously, in my<br>
>>>> other work, I handled events on my own ? I didn't ask or expect AWT to<br>
>>>> start or manage it's own events. I used AWT basically to host the OpenGL<br>
>>>> canvas (based on JOGL). But when one invokes the vtkRenderWIndowInteractor<br>
>>>> an event loop IS spawned and the causes various weird problems.<br>
>>>><br>
>>>> There is a fairly long summary of some of the issues here:<br>
>>>><br>
>>>> <a href="http://marc.info/?l=openjdk-awt-dev&m=135818602009136&w=2" target="_blank">http://marc.info/?l=openjdk-awt-dev&m=135818602009136&w=2</a><br>
>>>><br>
>>>> So the question that comes to my mind is how dependent is the rest of VTK<br>
>>>> on starting its own event loops? I.e. Can I use the rest of VTK and its<br>
>>>> pipeline to perform graphics, manage datasets, etc. I am willing to give<br>
>>>> up the Interactor and its mimicking of trackball if everything else is<br>
>>>> likely to work. But if spawning its own event loop(s) is intrinsic to how<br>
>>>> most of VTK works then I'm probably dead in the water.<br>
>>>><br>
>>>> Thoughts or suggestions?<br>
>>>><br>
>>>> Thanks<br>
>>>> Ric<br>
>>>><br>
>>>><br>
>>>> From: Ric Wright <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=1" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=1</a>> ><br>
>>>><br>
>>>> Date: Tuesday, August 13, 2013 12:59 PM<br>
>>>> To: Sebastien Jourdain <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=2" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=2</a>> ><br>
>>>> Cc: Sean McBride <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=3" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=3</a>> >, vtkusers <[hidden<br>
>>>> email] <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=4" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=4</a>> ><br>
>>>><br>
>>>> Subject: Re: [vtkusers] VTK6 and Java Cone Example 5<br>
>>>><br>
>>>> An update on this. I ported over some of my other Eclipse work and adapted<br>
>>>> it to VTK. It is pushed to my account on github and there is a writeup<br>
>>>> here: <a href="http://rkwright.github.io/geofx-pages/vtkview.html" target="_blank">http://rkwright.github.io/geofx-pages/vtkview.html</a>. There are 3<br>
>>>> articles in there. The latest rev of the code is here:<br>
>>>> <a href="https://github.com/rkwright/vtkscene" target="_blank">https://github.com/rkwright/vtkscene</a> in the develop branch.<br>
>>>><br>
>>>> Mostly, it works great. However, when I tried the fifth cone example,<br>
>>>> which has the problematic vtkRenderWindowInteractor, I ran into similar<br>
>>>> problems as before. I instantiated it with a valid vtkPanel.RenderWindow<br>
>>>> but it still goes off into the ozone, sometimes crashing the native<br>
>>>> vtkOpenGL dylib.<br>
>>>><br>
>>>> I'm going to skip the interactor for now and move on to see if I run into<br>
>>>> more problems. If not, I can probably live without that widget but the<br>
>>>> problems there might be symptomatic of deeper problems on OSX 64 bit<br>
>>>> systems.<br>
>>>><br>
>>>> Any further suggestions would be welcome.<br>
>>>><br>
>>>> Thanks<br>
>>>> Ric<br>
>>>><br>
>>>><br>
>>>> From: Sebastien Jourdain <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=5" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=5</a>> ><br>
>>>><br>
>>>> Date: Tuesday, August 6, 2013 8:56 AM<br>
>>>> To: Ric Wright <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=6" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=6</a>> ><br>
>>>> Cc: Sean McBride <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=7" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=7</a>> >, vtkusers <[hidden<br>
>>>> email] <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=8" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=8</a>> ><br>
>>>><br>
>>>> Subject: Re: [vtkusers] VTK6 and Java Cone Example 5<br>
>>>><br>
>>>> In Java you should use the Java specific classes anyway like<br>
>>>> vtkPanel/vtkCanvas or the new version of them used in the vtk.sample<br>
>>>> package of the vtk.jar...<br>
>>>><br>
>>>> The purpose of those example was to show the possible match between the<br>
>>>> different languages...<br>
>>>><br>
>>>> Nothing more I believe,<br>
>>>><br>
>>>> Seb<br>
>>>><br>
>>>><br>
>>>> On Tue, Aug 6, 2013 at 8:52 AM, Ric Wright <[hidden email]<br>
>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=9" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=9</a>> > wrote:<br>
>>>>> Ah, OK. Well, I don't know what to do here. Is this happening to others?<br>
>>>>> Should I file a bug? Just try to work around it by not using<br>
>>>>> RenderWindowInteractors (sounds kind of lame). Or?<br>
>>>>><br>
>>>>> Suggestions?<br>
>>>>><br>
>>>>> Thanks<br>
>>>>> Ric<br>
>>>>><br>
>>>>><br>
>>>>> On 8/5/13 4:15 PM, "Sean McBride" <[hidden email]<br>
>>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=10" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=10</a>> > wrote:<br>
>>>>><br>
>>>>>> >On Mon, 5 Aug 2013 16:10:55 -0500, Ric Wright said:<br>
>>>>>> ><br>
>>>>>>> >>Well, a little playing around didn't seem to help, but I am frankly<br>
>>>>>>> not<br>
>>>>>>> >>an<br>
>>>>>>> >>expert on threads. However, it seems to me that the source of the<br>
>>>>>>> >>problem<br>
>>>>>>> >>is that the vtkRenderWindowInteractor gets initialized then the<br>
>>>>>>> start()<br>
>>>>>>> >>method creates an event loop that is monitored by the<br>
>>>>>>> >>vtkRenderWindowInteractor. I suspect that start() method spawns a new<br>
>>>>>>> >>thread to listen to the events and it is the spawning of that thread<br>
>>>>>>> that<br>
>>>>>>> >>causes the exception.<br>
>>>>>> ><br>
>>>>>> >VTK's Cocoa classes never create any threads.<br>
>>>>>> ><br>
>>>>>> >Cheers,<br>
>>>>>> ><br>
>>>>>> >--<br>
>>>>>> >____________________________________________________________<br>
>>>>>> >Sean McBride, B. Eng [hidden email]<br>
>>>>>> <<a href="http://user/SendEmail.jtp?type=node&node=5722710&i=11" target="_blank">http://user/SendEmail.jtp?type=node&node=5722710&i=11</a>><br>
>>>>><br>
>>>>>> >Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
>>>>>> <<a href="http://www.rogue-research.com" target="_blank">http://www.rogue-research.com</a>><br>
>>>>>> >Mac Software Developer Montr?al, Qu?bec, Canada<br>
>>>>>> ><br>
>>>>>> ><br>
>>>>><br>
>>>>><br>
>>>><br>
>>><br>
>>><br>
>>> _______________________________________________<br>
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Message: 6<br>
Date: Wed, 14 Aug 2013 17:14:28 +0000<br>
From: Jude Pereira <<a href="mailto:jpereira@advsolinc.com">jpereira@advsolinc.com</a>><br>
Subject: [vtkusers] VTK 6.1<br>
To: "<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>" <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID:<br>
<<a href="mailto:0b2e49178c624132a07b02dcb87cdf39@BY2PR05MB142.namprd05.prod.outlook.com">0b2e49178c624132a07b02dcb87cdf39@BY2PR05MB142.namprd05.prod.outlook.com</a>><br>
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<br>
I'm eagerly awaiting VTK 6.1 as this<<a href="http://vtk.org/Bug/view.php?id=12945" target="_blank">http://vtk.org/Bug/view.php?id=12945</a>> says that it includes Qt 5 support.<br>
Any idea when 6.1 will be released?<br>
<br>
Jude<br>
<br>
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Message: 7<br>
Date: Wed, 14 Aug 2013 19:18:40 +0200<br>
From: Vincent Gratsac <<a href="mailto:vincent.gratsac.lists@gmail.com">vincent.gratsac.lists@gmail.com</a>><br>
Subject: [vtkusers] vtkDistanceWidget handles bug in VTK 5.10.1 ?<br>
To: VTK Users <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID: <<a href="mailto:520BBBF0.3010705@gmail.com">520BBBF0.3010705@gmail.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed<br>
<br>
Hi all,<br>
<br>
I'm trying to use vtkDistanceWidget but it seems that there is a problem<br>
with its handles.<br>
<br>
When I first draw the vtkDistanceWidget, all is ok. Handles are placed<br>
at the two extremitites of the green line.<br>
I can interact with the view in order to do some rotations or zooms on<br>
the render window.<br>
But if i click again on one of the handles and move it to another place,<br>
then when trying again to interact with the view, all objects will move<br>
correctly except the handles that I previously moved.<br>
<br>
An important point is that I can't reproduce this behavior with VTK<br>
5.4.2, but unfortunately, I can't use this version for my software<br>
development.<br>
Maybe someone already experienced this and found a solution...<br>
<br>
Here is the code that I reproduces the problem :<br>
<br>
> #include "vtkDistanceWidget.h"<br>
> #include "vtkDistanceRepresentation2D.h"<br>
> #include "vtkSphereSource.h"<br>
> #include "vtkPolyDataMapper.h"<br>
> #include "vtkActor.h"<br>
> #include "vtkRenderer.h"<br>
> #include "vtkRenderWindow.h"<br>
> #include "vtkRenderWindowInteractor.h"<br>
> #include "vtkCommand.h"<br>
> #include "vtkInteractorEventRecorder.h"<br>
> #include "vtkRegressionTestImage.h"<br>
> #include "vtkDebugLeaks.h"<br>
> #include "vtkCoordinate.h"<br>
> #include "vtkMath.h"<br>
> #include "vtkHandleWidget.h"<br>
> #include "vtkPointHandleRepresentation2D.h"<br>
> #include "vtkAxisActor2D.h"<br>
> #include "vtkProperty2D.h"<br>
><br>
><br>
> // The actual test function<br>
> int main( int argc, char *argv[] )<br>
> {<br>
> // Create the RenderWindow, Renderer and both Actors<br>
> //<br>
> vtkRenderer *ren1 = vtkRenderer::New();<br>
> vtkRenderWindow *renWin = vtkRenderWindow::New();<br>
> renWin->AddRenderer(ren1);<br>
><br>
> vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();<br>
> iren->SetRenderWindow(renWin);<br>
><br>
> // Create a test pipeline<br>
> //<br>
> vtkSphereSource *ss = vtkSphereSource::New();<br>
> vtkPolyDataMapper *mapper = vtkPolyDataMapper::New();<br>
> mapper->SetInput(ss->GetOutput());<br>
> vtkActor *actor = vtkActor::New();<br>
> actor->SetMapper(mapper);<br>
><br>
> // Create the widget and its representation<br>
> vtkPointHandleRepresentation2D *handle =<br>
> vtkPointHandleRepresentation2D::New();<br>
> handle->GetProperty()->SetColor(1,0,0);<br>
> handle->GetSelectedProperty()->SetColor(0,0,1);<br>
> // handle->SetActiveRepresentation(110);<br>
><br>
> vtkDistanceRepresentation2D *rep = vtkDistanceRepresentation2D::New();<br>
> rep->SetHandleRepresentation(handle);<br>
><br>
> rep->GetAxis()->SetNumberOfMinorTicks(4);<br>
> rep->GetAxis()->SetTickLength(9);<br>
> rep->GetAxis()->SetTitlePosition(0.2);<br>
><br>
> vtkDistanceWidget *widget = vtkDistanceWidget::New();<br>
> widget->SetInteractor(iren);<br>
> widget->CreateDefaultRepresentation();<br>
> widget->SetRepresentation(rep);<br>
><br>
> // Add the actors to the renderer, set the background and size<br>
> //<br>
> ren1->AddActor(actor);<br>
> ren1->SetBackground(0.1, 0.2, 0.4);<br>
> renWin->SetSize(300, 300);<br>
><br>
> // render the image<br>
> //<br>
> iren->Initialize();<br>
> renWin->Render();<br>
> widget->On();<br>
><br>
> iren->Start();<br>
><br>
> ss->Delete();<br>
> mapper->Delete();<br>
> actor->Delete();<br>
> handle->Delete();<br>
> rep->Delete();<br>
> widget->Off();<br>
> widget->Delete();<br>
> iren->Delete();<br>
> renWin->Delete();<br>
> ren1->Delete();<br>
><br>
> return 0;<br>
> }<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 8<br>
Date: Wed, 14 Aug 2013 13:39:43 -0400<br>
From: "Sean McBride" <<a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>>, <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID: <<a href="mailto:20130814173943.339520834@mail.rogue-research.com">20130814173943.339520834@mail.rogue-research.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
On Wed, 14 Aug 2013 10:00:08 -0700, rkwright said:<br>
<br>
>Right. The crashes are only when SWT is involved. I'll keep poking but like<br>
>I say, I don't want to learn/build new tooling (if I can help it). But I<br>
>find VTK kind of enigmatic in many respects. For example, I thought I would<br>
>try the Cocoa version, just for fun. So I created a new VTK source and<br>
>build folders, selected Xcode then ran configure, then generate. It said<br>
>"Configure done", "Generate done". Then what? There's no makefile I can<br>
>see to run the actual build. Is there another cmake step? I don't recall<br>
>there being one when I generated the Java wrappers. I just ran make in the<br>
>config then generate and there was a makefile. But this time no makefile.<br>
>What am I missing?<br>
<br>
That sounds more like due to being new to CMake than new to VTK. If you chose the Xcode generator, then cmake will have created a .xcodeproj file, you then just open that project in Xcode just like a hand-created Xcode project.<br>
<br>
Remember, VTK is a library, so you can build VTK itself with a makefile or Xcode. You can then take the resulting libraries and add them to your own makefile, Xcode project, CMake build file, or custom build system.<br>
<br>
Cheers,<br>
<br>
--<br>
____________________________________________________________<br>
Sean McBride, B. Eng <a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a><br>
Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
Mac Software Developer Montr?al, Qu?bec, Canada<br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 9<br>
Date: Wed, 14 Aug 2013 10:49:37 -0700 (PDT)<br>
From: rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Message-ID: <<a href="mailto:CE312CD7.103ADF%25rkwright@geofx.com">CE312CD7.103ADF%rkwright@geofx.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
LOL. Yes, I figured that out. I was actually on the phone talking with one<br>
of my project's engineers about the build process on Android, Eclipse vs.<br>
command line and !! Slap forehead. There is NO makefile? :-) So I<br>
started the build and it built without problems. I'll have a go at it later<br>
when I get a chance.<br>
<br>
Thanks<br>
Ric<br>
<br>
<br>
From: "Sean McBride [via VTK]" <<a href="mailto:ml-node%2Bs1045678n5722748h26@n5.nabble.com">ml-node+s1045678n5722748h26@n5.nabble.com</a>><br>
Date: Wednesday, August 14, 2013 12:40 PM<br>
To: Ric Wright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Subject: Re: AWT + SWT + Event Loops (was Re: VTK6 and Java Cone Example 5)<br>
<br>
On Wed, 14 Aug 2013 10:00:08 -0700, rkwright said:<br>
<br>
>Right. The crashes are only when SWT is involved. I'll keep poking but like<br>
>I say, I don't want to learn/build new tooling (if I can help it). But I<br>
>find VTK kind of enigmatic in many respects. For example, I thought I would<br>
>try the Cocoa version, just for fun. So I created a new VTK source and<br>
>build folders, selected Xcode then ran configure, then generate. It said<br>
>"Configure done", "Generate done". Then what? There's no makefile I can<br>
>see to run the actual build. Is there another cmake step? I don't recall<br>
>there being one when I generated the Java wrappers. I just ran make in the<br>
>config then generate and there was a makefile. But this time no makefile.<br>
>What am I missing?<br>
<br>
That sounds more like due to being new to CMake than new to VTK. If you<br>
chose the Xcode generator, then cmake will have created a .xcodeproj file,<br>
you then just open that project in Xcode just like a hand-created Xcode<br>
project.<br>
<br>
Remember, VTK is a library, so you can build VTK itself with a makefile or<br>
Xcode. You can then take the resulting libraries and add them to your own<br>
makefile, Xcode project, CMake build file, or custom build system.<br>
<br>
Cheers,<br>
<br>
--<br>
____________________________________________________________<br>
Sean McBride, B. Eng [hidden email]<br>
</user/SendEmail.jtp?type=node&node=5722748&i=0><br>
Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
Mac Software Developer Montr?al, Qu?bec, Canada<br>
<br>
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<br>
Message: 10<br>
Date: Wed, 14 Aug 2013 14:50:16 -0400<br>
From: "Sean McBride" <<a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: rkwright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>>, <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID: <<a href="mailto:20130814185016.312926488@mail.rogue-research.com">20130814185016.312926488@mail.rogue-research.com</a>><br>
Content-Type: text/plain; charset=ISO-8859-1<br>
<br>
On Wed, 14 Aug 2013 08:53:02 -0700, rkwright said:<br>
<br>
>It may be that the message is stop fighting and accept<br>
>using Xcode. Is that what you work in? Xcode and Objective C/C++?<br>
<br>
Well, "it depends" of course, on what you're doing, why, etc., etc. But VTK is written in C++, support for other languages is well-supported but is an extra layer. Similarly, Java has fallen out of favour with Apple, and not included by default anymore. Using a 3rd party Java (7) and 3rd party development environment (Eclipse) are likely to be less smooth than using OS vendor supplied languages (C/C++/Obj-C) and tools (ie Xcode). But it all depends. YMMV.<br>
<br>
Cheers,<br>
<br>
--<br>
____________________________________________________________<br>
Sean McBride, B. Eng <a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a><br>
Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
Mac Software Developer Montr?al, Qu?bec, Canada<br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 11<br>
Date: Wed, 14 Aug 2013 14:01:01 -0500<br>
From: Ric Wright <<a href="mailto:rkwright@geofx.com">rkwright@geofx.com</a>><br>
Subject: Re: [vtkusers] AWT + SWT + Event Loops (was Re: VTK6 and Java<br>
Cone Example 5)<br>
To: Sean McBride <<a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a>>, <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID: <<a href="mailto:CE313C47.103E93%25rkwright@geofx.com">CE313C47.103E93%rkwright@geofx.com</a>><br>
Content-Type: text/plain; charset="ISO-8859-1"<br>
<br>
Sean,<br>
<br>
You're right. But OTOH, I did build the VTK in XCOde and then pulled up<br>
the Example/GUI Xcode project (Examples/GUI/Cocoa). Unfortunately, the<br>
project doesn't match its own documentation. It says point the project at<br>
the VTK/include project. But there isn't one - there are a couple of<br>
dozen (I love C++ :-). That can be resolved (slowly) but the project is<br>
also looking for all the lib files to be .a (static) libs. But the VTK<br>
project builds dylibs (which is the right way, IMO).<br>
<br>
I'm sure all this can be resolved, but it's a lot of learning curves and<br>
tool fiddling. This isn't my job, it's my hobby. As I said before, it's a<br>
tradeoff - climb the VTK hill and benefit from the work you guys have<br>
done, or stick with what I have got - which works. I'll be probably keep<br>
going because I hate giving up ;-)<br>
<br>
Thanks<br>
Ric<br>
<br>
<br>
On 8/14/13 1:50 PM, "Sean McBride" <<a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a>> wrote:<br>
<br>
>On Wed, 14 Aug 2013 08:53:02 -0700, rkwright said:<br>
><br>
>>It may be that the message is stop fighting and accept<br>
>>using Xcode. Is that what you work in? Xcode and Objective C/C++?<br>
><br>
>Well, "it depends" of course, on what you're doing, why, etc., etc. But<br>
>VTK is written in C++, support for other languages is well-supported but<br>
>is an extra layer. Similarly, Java has fallen out of favour with Apple,<br>
>and not included by default anymore. Using a 3rd party Java (7) and 3rd<br>
>party development environment (Eclipse) are likely to be less smooth than<br>
>using OS vendor supplied languages (C/C++/Obj-C) and tools (ie Xcode).<br>
>But it all depends. YMMV.<br>
><br>
>Cheers,<br>
><br>
>--<br>
>____________________________________________________________<br>
>Sean McBride, B. Eng <a href="mailto:sean@rogue-research.com">sean@rogue-research.com</a><br>
>Rogue Research <a href="http://www.rogue-research.com" target="_blank">www.rogue-research.com</a><br>
>Mac Software Developer Montr?al, Qu?bec, Canada<br>
><br>
><br>
<br>
<br>
<br>
<br>
------------------------------<br>
<br>
Message: 12<br>
Date: Wed, 14 Aug 2013 17:31:30 -0500<br>
From: Fabian Torres <<a href="mailto:dae.wong@gmail.com">dae.wong@gmail.com</a>><br>
Subject: Re: [vtkusers] Extract region with<br>
vtkTracerInteractorStyleImage<br>
To: David Doria <<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>>, <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Message-ID:<br>
<CALD_EpLNYzP1b9Yp7quW=zNvEVu8q9jD1mY7Os0DaJQkm+O=<a href="mailto:OA@mail.gmail.com">OA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Sorry the name is vtkInteractorStyleImage.<br>
vtkTracerInteractorStyleImage is the name of my class.<br>
<br>
<br>
On Wed, Aug 14, 2013 at 4:08 PM, David Doria <<a href="mailto:daviddoria@gmail.com">daviddoria@gmail.com</a>> wrote:<br>
<br>
> Are you sure you typed the class name correctly?<br>
> 'vtkTracerInteractorStyleImage' is not a class in VTK as far as I can<br>
> tell: <a href="http://www.vtk.org/doc/nightly/html/classes.html" target="_blank">http://www.vtk.org/doc/nightly/html/classes.html</a><br>
><br>
> David<br>
><br>
><br>
> On Wed, Aug 14, 2013 at 12:32 PM, Fabian Torres <<a href="mailto:dae.wong@gmail.com">dae.wong@gmail.com</a>><br>
> wrote:<br>
> > Hi all.<br>
> ><br>
> > I have a class that inherits from vtkTracerInteractorStyleImage. This<br>
> class allows the user to draw closed lines in an image and extract the<br>
> vtkPath and vtkPoints every time the class catches a tracerEvent.<br>
> ><br>
> > My problem is that I want to extract the value of every pixel inside the<br>
> drew region. How can I do this using the information from the obtained<br>
> vtkPath or vtkPoints.<br>
> ><br>
> > Thnanks all<br>
> > _______________________________________________<br>
> > Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
> ><br>
> > Visit other Kitware open-source projects at<br>
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> > Please keep messages on-topic and check the VTK FAQ at:<br>
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> ><br>
> > Follow this link to subscribe/unsubscribe:<br>
> > <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
><br>
<br>
<br>
<br>
--<br>
Fabi?n Torres Robles<br>
Maestria en Ciencias en Ingenier?a Electr?nica<br>
Ingenier?a en Sistemas Electr?nicos<br>
tel. 58081280, 0445534661338<br>
e-mail <a href="mailto:fabian.trobles@gmail.com">fabian.trobles@gmail.com</a>, <a href="mailto:dae.wong@gmail.com">dae.wong@gmail.com</a><br>
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Message: 13<br>
Date: Wed, 14 Aug 2013 16:13:08 -0700<br>
From: Alex Malyushytskyy <<a href="mailto:alexmalvtk@gmail.com">alexmalvtk@gmail.com</a>><br>
Subject: Re: [vtkusers] (no subject)<br>
To: "<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>" <<a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a>><br>
Message-ID:<br>
<<a href="mailto:CAHR9pJ2QF6yDUBt8xgajCG0MsHROHqPT8CpHbbjcf7uWOuh1uQ@mail.gmail.com">CAHR9pJ2QF6yDUBt8xgajCG0MsHROHqPT8CpHbbjcf7uWOuh1uQ@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Could you please stop polluting vtk mailing list with meaningless or no<br>
subject messages.<br>
If you continue people will start ignore you.<br>
<br>
It is good to read some guidelines before posting.<br>
Example:<br>
<a href="http://fedoraproject.org/wiki/Mailing_list_guidelines" target="_blank">http://fedoraproject.org/wiki/Mailing_list_guidelines</a><br>
<br>
Regards,<br>
Alex<br>
<br>
<br>
<br>
<br>
<br>
On Wed, Aug 14, 2013 at 7:58 AM, Anka Kochanowska <<a href="mailto:pluszcz@gmail.com">pluszcz@gmail.com</a>> wrote:<br>
<br>
> That means that you have to pass an argument to the executable<br>
> ReadTextFile.<br>
><br>
> Example for SimplePointReader:<br>
> ./SimplePointsReader /opt/vtk-5.10/VTKData5.10.1/Data/mbwavelet_ascii.xyz<br>
><br>
><br>
> I have no time to build all vtk examples. Why don't you read the example<br>
> code and find out what is asked for?<br>
><br>
> If you need a specific format asked in the example, download VTKData.<br>
> as I said, I am using vtk 5, but you should download data for vtk 6.<br>
><br>
> Anka<br>
><br>
><br>
><br>
> On Wed, Aug 14, 2013 at 10:54 AM, Altamash Abbasi <<br>
> <a href="mailto:altamashabbasi@gmail.com">altamashabbasi@gmail.com</a>> wrote:<br>
><br>
>> Now this error is coming. . . . still GUI is not coming . . .<br>
>><br>
>> stame1@itlrstud044:~/software/ReadTextFile/build> ./ReadTextFile<br>
>> Usage: ./ReadTextFile Filename(.xyz)<br>
>><br>
>> _______________________________________________<br>
>> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
>><br>
>> Visit other Kitware open-source projects at<br>
>> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
>><br>
>> Please keep messages on-topic and check the VTK FAQ at:<br>
>> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
>><br>
>> Follow this link to subscribe/unsubscribe:<br>
>> <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
>><br>
>><br>
><br>
> _______________________________________________<br>
> Powered by <a href="http://www.kitware.com" target="_blank">www.kitware.com</a><br>
><br>
> Visit other Kitware open-source projects at<br>
> <a href="http://www.kitware.com/opensource/opensource.html" target="_blank">http://www.kitware.com/opensource/opensource.html</a><br>
><br>
> Please keep messages on-topic and check the VTK FAQ at:<br>
> <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">http://www.vtk.org/Wiki/VTK_FAQ</a><br>
><br>
> Follow this link to subscribe/unsubscribe:<br>
> <a href="http://www.vtk.org/mailman/listinfo/vtkusers" target="_blank">http://www.vtk.org/mailman/listinfo/vtkusers</a><br>
><br>
><br>
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Message: 14<br>
Date: Wed, 14 Aug 2013 17:42:47 -0700<br>
From: Chao Liang <<a href="mailto:chaolian@mtu.edu">chaolian@mtu.edu</a>><br>
Subject: [vtkusers] One kind of vtkMultiBlockDataSet shows up in VTK<br>
5.7 while not in VTK 6.0<br>
To: <a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
Message-ID:<br>
<<a href="mailto:CAD4LrprNDFmd_VB_NiLMyt57GZjvaNFqnbSAYQsnBVi-E77qOA@mail.gmail.com">CAD4LrprNDFmd_VB_NiLMyt57GZjvaNFqnbSAYQsnBVi-E77qOA@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="iso-8859-1"<br>
<br>
Hi,<br>
<br>
<br>
Please attached files. The same code, it works in vtk 5.7 but not in vtk<br>
6.0.<br>
I don't know what the problem is.<br>
<br>
Here is what I did in my code:<br>
----------------------<br>
| | |<br>
| | |<br>
| | |<br>
----------------------<br>
As shown above, the data set is two cubes and they share the same surface.<br>
I made a vtkMultiBlockDataSet like this:<br>
<br>
along x dir, 4 lines, each line I set it to be a block;<br>
along y dir, 6 lines, each line I set it to be a block;<br>
along z dir, 6 lines, each line I set it to be a block.<br>
<br>
Then just as normal, set up renderWindow, renderer, actor etc. Note: I did<br>
add macros in vtk 6.0, and FYI, I did successfully show up another<br>
vtkMultiBlockDataSet, i.e., 2 cubes, but they don't share any surface.<br>
<br>
So, my question is : Why it shows up in vtk 5.7 but not in vtk 6.0? Is it<br>
possible somehow vtk 6.0 does not support this kind of vtkMultiBlockDataSet<br>
(i.e., have shared surfaces, points) rendering ?<br>
<br>
Any help is appreciated. Thanks.<br>
<br>
Chao<br>
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