<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Ashish Singh wrote:
<blockquote
cite="mide275438e0609131023j63bb262fyc9e3390dd938dde0@mail.gmail.com"
type="cite">Hi Amy,<br>
<br>
I don't remember if VTK_USE_RENDERING variable was ON or not. Is there
a way to confirm that? However I am able to compile and run other
programs from the examples/tutorials directory such as cones etc. as
well as read and display single dicom image and interact with it using
renderwindowinteractor. <br>
<br>
</blockquote>
If you are able to render and use the render window interactor, then
VTK_USE_RENDERING was turned on, so that isn't the problem.<br>
<blockquote
cite="mide275438e0609131023j63bb262fyc9e3390dd938dde0@mail.gmail.com"
type="cite">The cmakelists.txt file that I use for dicom volume
problem is :
<br>
----<br>
PROJECT (multiimagereader)<br>
<br>
INCLUDE (${CMAKE_ROOT}/Modules/FindVTK.cmake)<br>
IF (USE_VTK_FILE)<br>
INCLUDE(${USE_VTK_FILE})<br>
ENDIF (USE_VTK_FILE)<br>
<br>
ADD_EXECUTABLE(multiimagereader multiimagereader.cxx
)<br>
TARGET_LINK_LIBRARIES(multiimagereader vtkRendering)<br>
----<br>
Is there anything that I need to modify in this file?<br>
<br>
</blockquote>
In the above TARGET_LINK_LIBRARIES line, add vtkVolumeRendering before
the closing ")". The line should look like the following.<br>
<br>
TARGET_LINK_LIBRARIES(multiimagereader vtkRendering vtkVolumeRendering)<br>
<blockquote
cite="mide275438e0609131023j63bb262fyc9e3390dd938dde0@mail.gmail.com"
type="cite">Thanks,<br>
Ashish<br>
<br>
<br>
<div><span class="gmail_quote">On 9/13/06, <b
class="gmail_sendername">
Amy Squillacote</b> <<a href="mailto:amy.squillacote@kitware.com">amy.squillacote@kitware.com</a>>
wrote:</span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff" text="#000000">Hi Ashish,<br>
<br>
When you built VTK, was the VTK_USE_RENDERING CMake variable set to ON?
If it was, are you linking against the vtkVolumeRendering library?<br>
<br>
- Amy<br>
<br>
Ashish Singh wrote:
</div>
<div><span class="e" id="q_10da820371a91afd_1">Hi Yixun and
Sharwari,<br>
<br>
I am trying to solve exactly similar problem but using DICOM images
rather than bmp. But I am getting errors and I can't figure out why. My
code is based on your previous conversation so far. The error that I
get is: <br>
(1)error LNK2019: unresolved external symbol "public: static class
vtkVolumeRayCastCompositeFunction * __cdecl
vtkVolumeRayCastCompositeFunction::New(void)"
(?New@vtkVolumeRayCastCompositeFunction@@SAPAV1@XZ
) referenced in function _main<br>
(2)error LNK2019: unresolved external symbol "public: static class
vtkVolumeRayCastMapper * __cdecl vtkVolumeRayCastMapper::New(void)"
(?New@vtkVolumeRayCastMapper@@SAPAV1@XZ) referenced in function _main <br>
(3)fatal error LNK1120: 2 unresolved externals<br>
<br>
Can you please help me figure out what's going wrong here?<br>
<br>
My code is as follows:<br>
-----<br>
#include "vtkConeSource.h"<br>
#include "vtkPolyDataMapper.h
"<br>
#include "vtkRenderWindow.h"<br>
#include "vtkCamera.h"<br>
#include "vtkActor.h"<br>
#include "vtkImageActor.h"<br>
#include "vtkOutlineFilter.h"<br>
#include "
vtkProperty.h"<br>
#include "vtkPolyDataNormals.h"<br>
#include "vtkContourFilter.h"<br>
#include "vtkDataSetMapper.h"<br>
#include "vtkImageMapper.h"<br>
#include "vtkPiecewiseFunction.h
"<br>
#include "vtkVolumeProperty.h"<br>
#include "vtkRenderer.h"<br>
#include "conio.h"<br>
#include "vtkDICOMImageReader.h"<br>
#include "vtkImageViewer2.h"<br>
#include "
vtkJPEGReader.h"<br>
#include "vtkRenderWindowInteractor.h"<br>
#include "vtkVolumeMapper.h"<br>
#include "vtkActor2D.h"<br>
#include "vtkPolyDataMapper.h"<br>
#include "vtkVolumeRayCastCompositeFunction.h
"<br>
#include "vtkVolumeRayCastMapper.h"<br>
<br>
void main()<br>
{<br>
<br>
vtkRenderer *arenderer = vtkRenderer::New();<br>
vtkRenderWindow *renwin = vtkRenderWindow::New();<br>
vtkDICOMImageReader *img1=vtkDICOMImageReader::New(); <br>
<br>
img1->SetFilePrefix("D:\\testimages\\dicomset\\IM");<br>
img1->SetFilePattern("%s%d.dcm");<br>
img1->SetFileNameSliceOffset(1);<br>
img1->SetFileNameSliceSpacing(1);<br>
img1->SetDataExtent(0,511,0,511,1,10);//512x512 images and 10
slices <br>
img1->SetDataSpacing(360.0/512,360.0/512,1.0); //my image is 36cm
x 36cm and 512x512<br>
img1->SetDataOrigin(0.0,0.0,0.0);<br>
img1->Update();<br>
<br>
vtkVolume *vol=vtkVolume::New();<br>
vtkVolumeRayCastMapper *volumemapper = vtkVolumeRayCastMapper::New();
<br>
vtkVolumeRayCastCompositeFunction
*rcf=vtkVolumeRayCastCompositeFunction::New();<br>
volumemapper->SetVolumeRayCastFunction(rcf);<br>
volumemapper->SetInput(img1->GetOutput());<br>
vol->SetMapper(volumemapper); <br>
<br>
vtkCamera *cam=vtkCamera::New();<br>
cam->SetViewUp(0,0,-1);<br>
cam->SetPosition(0,1,0);<br>
cam->SetFocalPoint(0,0,0);<br>
cam->ComputeViewPlaneNormal();<br>
<br>
arenderer->AddActor(vol);<br>
arenderer->SetActiveCamera(cam);<br>
arenderer->ResetCamera();<br>
arenderer->SetBackground(1,1,1);<br>
<br>
renwin->AddRenderer(arenderer);<br>
vtkRenderWindowInteractor *iren=vtkRenderWindowInteractor::New(); <br>
iren->SetRenderWindow(renwin);<br>
renwin->Render();<br>
iren->Initialize();<br>
iren->Start();<br>
<br>
img1->Delete();<br>
iren->Delete();<br>
}<br>
--------<br>
I would really appreciate if anyone can help me. <br>
<br>
Regards,<br>
Ashish<br>
<br>
<div><span class="gmail_quote">On 9/7/06, <b
class="gmail_sendername">Sharwari
Mavalankar</b> <<a href="mailto:sharwari@gmail.com" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">
sharwari@gmail.com</a>> wrote:</span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div>hi Yixun,</div>
<div>I'll try and look into why the volume appears darker.</div>
<div> </div>
<div>However I'll there are many lines that are appearing on the
volume (they look like striations).</div>
<div>Do you know what the reason for that could be?</div>
<div> </div>
<div> </div>
<div>Also if I have to visualize color bmp slices (24 bit ) I
need <font face="Bookman Old Style">vtkFixedPointVolumeRayCastMapper
right?</font></div>
<div><font face="Bookman Old Style">Thanks </font></div>
</div>
<div><span>
<div><font face="Bookman Old Style">Sharwari</font><br>
<br>
</div>
</span></div>
<div><span>
<div><span class="gmail_quote">On 9/6/06, <b
class="gmail_sendername">Yixun Liu</b> <<a
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">yxliu@fudan.edu.cn</a>
>
wrote: </span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff">
<div><font face="Bookman Old Style">Hi,</font></div>
<div><font face="Bookman Old Style">You are right and alwayse
taking mm as the unit.</font></div>
<div><font face="Bookman Old Style">SpacingX = 5.12*10/256;</font></div>
<div><font face="Bookman Old Style">SpacingY = 5.12*10/256;</font></div>
<div> </div>
<div><font face="Bookman Old Style">Many reason can make the
volume look darker.</font></div>
<div><font face="Bookman Old Style">You can change the opacity
and color interpolation function to adjust the appearance of the
volume. If you use shade you can also change ambient or diffusion
coefficient to make the volume look more lighter. Another method is to
change the <a>vtkLight</a> in the renderer. <a>vtkLight</a> is a
virtual light for 3D rendering. It provides methods to locate and point
the light, turn it on and off, and set its brightness and color. </font></div>
<div> </div>
<div><font face="Bookman Old Style">Cheers,</font></div>
</div>
<div><span>
<div> </div>
<div><font face="Bookman Old Style">Yixun Liu</font></div>
</span></div>
<div> </div>
<div><span>
<div>----- Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"><b>From:</b>
<a title="sharwari@gmail.com" href="mailto:sharwari@gmail.com"
target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
Sharwari Mavalankar</a> </div>
<div><b>To:</b> <a title="yxliu@fudan.edu.cn"
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">Yixun Liu</a> </div>
<div><b>Cc:</b> <a title="vtkusers@vtk.org"
href="mailto:vtkusers@vtk.org" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">VTK</a> </div>
</span></div>
<div><span>
<div><b>Sent:</b> Thursday, September 07, 2006 1:43 AM</div>
<div><b>Subject:</b> Re: Re: Re: Creating a Volume from 2D BMP
files.</div>
<div><br>
</div>
<div>hi Yixun,</div>
<div>Thank you very much for your email.</div>
<div>What exactly do you mean by the physical size of the image?</div>
<div>Does it mean the size of the image in cm or mm?</div>
<div> </div>
<div>For example if my original images are 5.12 cm * 5.12 cm
and
are 256 * 256 images.</div>
<div>What will the data spacing be?</div>
<div> </div>
<div> </div>
<div>Also can you tell me the reason why the 3D volume seems
darker than the original images? </div>
<div>Is there any way I can scale the intensity of the images?</div>
<div>Thanks again,</div>
<div>Sharwari<br>
<br>
</div>
<div><span class="gmail_quote">On 9/3/06, <b
class="gmail_sendername">Yixun Liu</b> <<a
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">yxliu@fudan.edu.cn</a>
>
wrote: </span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff">
<div><font face="Bookman Old Style">Hi,</font></div>
<div><font face="Bookman Old Style">If you read color bmp
files
you should update vtk to 5.0 version and use
vtkFixedPointVolumeRayCastMapper(see last mail). Otherwise, you should
not call</font></div>
<div><font face="Bookman Old Style">br->SetNumberOfScalarComponents(3);</font></div>
<div> </div>
<div><font face="Bookman Old Style">1. You can decide the
physical spacing accroding to the image extent(pixel unit) and its
physical size(mm): spacing = size/(extent-1); If no physical size you
have to give a estimation for the spacing. </font></div>
<div> </div>
<div><font face="Bookman Old Style">2.The point1 and point2
will define a linear opacity function, which can be interpolated from
the two points. For example, define two points (intensity1,
opacity1)and (intensity2, opacity2) you can get the opacity3 at
intensity3 by opacity3 =
(intensity3-intensity1)/(intensity2-intensity1)*(opacity2-opacity1) +
opacity1 </font></div>
<div> </div>
<div><font face="Bookman Old Style">Hope it help.</font></div>
<div> </div>
<div><font face="Bookman Old Style">Cheers,</font></div>
</div>
<div><span>
<div> </div>
<div><font face="Bookman Old Style"><span name="st">Yixun</span>
Liu</font></div>
<div><font face="Bookman Old Style"><br>
</font></div>
</span></div>
<div> </div>
<div><span>
<div>----- Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"><b>From:</b>
<a title="sharwari@gmail.com" href="mailto:sharwari@gmail.com"
target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
Sharwari Mavalankar</a> </div>
<div><b>To:</b> <a title="yxliu@fudan.edu.cn"
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)"><span name="st">Yixun</span>
Liu</a> </div>
<div><b>Cc:</b> <a title="vtkusers@vtk.org"
href="mailto:vtkusers@vtk.org" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">VTK</a> </div>
</span></div>
<div><span>
<div><b>Sent:</b> Monday, September 04, 2006 6:50 AM</div>
<div><b>Subject:</b> Re: Re: Creating a Volume from 2D BMP
files.</div>
<div><br>
</div>
<div>hi Yixun,</div>
<div>I implemented the suggestions that you had made.</div>
<div>Now I am getting a 3D volume but it doesnt look anything
like the original 2D slices.</div>
<div>It is much darker in appearance and it's got lines all
over it ( it looks as though it's some kind of aliasing).</div>
<div> </div>
<div>I have the following questions to ask you </div>
<div>1.While using the function SetDataSpacing(x,y,z) how do
I
decide the values of the parameters x,y and z.</div>
<div> </div>
<div>2.While using the Addpoint() function of class
vtkPiecewiseFunction what do the two parameters in the Addpoint
function mean?</div>
<div>How do they affect the output?</div>
<div> </div>
<div> </div>
<div>This is code I have used. Do let me know if you can make
any more sugestions.</div>
<div> </div>
<div> </div>
<div>
<p>//This program reads a single BMP file and plots it as an
image.<br>
//The same program will be extended to read multiple images and create
a 3D volume out of 2D slices.</p>
<p><br>
#include "vtkRenderer.h"<br>
#include "vtkRenderWindow.h"<br>
#include "vtkRenderWindowInteractor.h"<br>
#include "vtkBMPReader.h"<br>
#include "vtkPolyDataMapper.h"<br>
#include "vtkActor.h"<br>
#include "vtkActor2D.h"<br>
#include "vtkImageActor.h"<br>
#include "vtkOutlineFilter.h"<br>
#include "vtkCamera.h"<br>
#include "vtkProperty.h" <br>
#include "vtkPolyDataNormals.h"<br>
#include "vtkContourFilter.h"<br>
#include "vtkDataSetMapper.h"<br>
#include "vtkImageMapper.h"<br>
#include "vtkVolumeMapper.h"<br>
#include " vtkVolumeRayCastMapper.h"<br>
#include "vtkVolumeRayCastCompositeFunction.h"<br>
#include "vtkPiecewiseFunction.h"<br>
#include "vtkVolumeProperty.h"</p>
<p><br>
void main (void)<br>
{<br>
<br>
vtkRenderer *aRenderer = vtkRenderer::New();<br>
vtkRenderWindow *renWin = vtkRenderWindow::New();<br>
<br>
renWin->AddRenderer(aRenderer);<br>
vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
<br>
iren->SetRenderWindow(renWin);</p>
<p><br>
//create an instance of the class vtkBMPReader<br>
vtkBMPReader *br = vtkBMPReader::New();<br>
<br>
br->SetFilePrefix("C:\\Images\\conductivities\\slice"); <br>
br->SetFilePattern("%s%d.bmp"); <br>
br->SetFileNameSliceOffset(1);<br>
br->SetFileNameSliceSpacing(1);<br>
br->SetNumberOfScalarComponents(3);<br>
br->SetDataSpacing(0.4,0.4,10);<br>
br->SetDataOrigin(0,0,0);<br>
br->SetDataExtent(0,255,0,255,0,7); <br>
br->Update();<br>
<br>
vtkPiecewiseFunction *opacityTransferFunction =
vtkPiecewiseFunction::New();<br>
opacityTransferFunction->AddPoint(20,0.2);<br>
opacityTransferFunction->AddPoint(255,1.0);</p>
<p> vtkVolumeProperty *volumeProperty =
vtkVolumeProperty::New();<br>
volumeProperty->SetScalarOpacity(opacityTransferFunction);<br>
</p>
<p><br>
<br>
vtkVolumeRayCastMapper *VolumeMapper = vtkVolumeRayCastMapper::New();<br>
vtkVolumeRayCastCompositeFunction *RayCastFunction =
vtkVolumeRayCastCompositeFunction::New();<br>
VolumeMapper->SetVolumeRayCastFunction(RayCastFunction); <br>
VolumeMapper->SetInput(br->GetOutput());</p>
<p> <br>
vtkVolume *volume = vtkVolume::New();<br>
<br>
VolumeMapper->SetInput(br->GetOutput());<br>
volume->SetMapper(VolumeMapper);</p>
<p> vtkCamera *aCamera = vtkCamera::New();<br>
aCamera->SetViewUp (0, 0,-1);<br>
aCamera->SetPosition (0, 1, 0);<br>
aCamera->SetFocalPoint (0, 0, 0);<br>
aCamera->ComputeViewPlaneNormal();</p>
<p><br>
aRenderer->AddActor(volume);<br>
aRenderer->SetActiveCamera(aCamera);<br>
aRenderer->ResetCamera ();<br>
aRenderer->SetBackground(1,1,1);<br>
renWin->Render();<br>
<br>
iren->Initialize(); <br>
iren->Start(); <br>
<br>
}</p>
</div>
<div> </div>
<div>Thanks again for all your help.</div>
<div>Sharwari<br>
<br>
</div>
<div><span class="gmail_quote">On 8/31/06, <b
class="gmail_sendername">Yixun Liu</b> <<a
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">yxliu@fudan.edu.cn
</a>>
wrote: </span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff">
<div><font face="Bookman Old Style">Hi,</font></div>
<div><font face="Bookman Old Style">Assuming image is
256x256x100. The first file name is image1 and the last file name is
image100. So, SetDataExtent(0, 255, 0, 255, 1, 100); The access
violation may be caused by wrong extent setting. </font></div>
<div> </div>
<div><font face="Bookman Old Style">If you use vtkVolume,
use
vtkVolumeRayCastMapper(vtk4.2.2) or use
vtkFixedPointVolumeRayCastMapper(vtk5.0). Note that if you use
vtkFixedPointVolumeRayCastMapper you no need to call
SetVolumeRayCastFunction(); </font></div>
<div> </div>
<div><font face="Bookman Old Style">Hope it help.</font></div>
</div>
<div><span>
<div> </div>
<div><font face="Bookman Old Style"><span name="st">Yixun</span>
Liu</font></div>
</span></div>
<div><span>
<blockquote
style="border-left: 2px solid rgb(0, 0, 0); padding-right: 0px; padding-left: 5px; margin-left: 5px; margin-right: 0px;">
<div>----- Original Message ----- </div>
<div
style="background: rgb(228, 228, 228) none repeat scroll 0% 50%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;"><b>From:</b>
<a title="sharwari@gmail.com"
href="mailto:sharwari@gmail.com" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">
Sharwari Mavalankar</a> </div>
<div><b>To:</b> <a title="yxliu@fudan.edu.cn"
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">Yixun Liu</a> </div>
<div><b>Cc:</b> <a title="vtkusers@vtk.org"
href="mailto:vtkusers@vtk.org" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">VTK</a> </div>
<div><b>Sent:</b> Thursday, August 31, 2006 6:37 PM</div>
<div><b>Subject:</b> Re: Creating a Volume from 2D BMP
files.</div>
<div><br>
</div>
<div>hi Yixun,</div>
<div>Thanks for your email.I had a couple of more
questions
though.</div>
<div>1.I do not want to visualize colour slices.They are
grey level images.</div>
<div> </div>
<div>2.Also if I put SetDataExtent() before the Update()
then I am getting an access violation error.What does the Update
function do exactly?</div>
<div>Also can you tell me what the five parameters in
SetDataExtent() mean?</div>
<div> </div>
<div>3.If I use vtkVolume what mapper should I use to
visualize the slices?</div>
<div> </div>
<div> </div>
<div>Thanks again for all your help.</div>
<div>Sharwari</div>
<div><br>
<br>
</div>
<div><span class="gmail_quote">On 8/23/06, <b
class="gmail_sendername">Yixun Liu</b> <<a
href="mailto:yxliu@fudan.edu.cn" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">yxliu@fudan.edu.cn
</a>>
wrote: </span>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff">
<div><font face="Bookman Old Style">Hi,</font></div>
<div> </div>
<div><font face="Bookman Old Style">If you want to
visualize color slices, you need to </font></div>
<div><font face="Bookman Old Style">1. read these
slices.
You need to put the SetDataExtent(0, 111, 0, 127, 1, 300);<br>
before Update();</font></div>
<div> </div>
<div><font face="Bookman Old Style"> vtkTIFFReader *v16
=
vtkTIFFReader::New();<br>
</font><font face="Bookman Old Style"> v16->SetFilePrefix("D:\\MyVC\\VTKtest\\Raycasting\\Data\\BrainColor\\brain");<br>
v16->SetFilePattern("%s%d.TIF"); <br>
v16->SetDataExtent(0, 111, 0, 127, 1, 300);<br>
v16->SetDataSpacing(1.2,1.2,0.5);<br>
v16->SetDataOrigin(0.0, 0.0, 0.0);</font></div>
<div><font face="Bookman Old Style"> v16->SetNumberOfScalarComponents(3);<br>
</font><font face="Bookman Old Style"> v16->Update();</font></div>
<div> </div>
<div><font face="Bookman Old Style">2. Add the 4th
component. The first three components are color and the 4th is used to
map to opacity. I compute the luminancy according to the firft three
components and take it as the 4th component. </font></div>
<div> </div>
<div><font face="Bookman Old Style">3. Opacity map
using
vtkPiecewiseFunction</font></div>
<div> </div>
<div><font face="Bookman Old Style">4. no need color
map
function</font></div>
<div> </div>
<div><font face="Bookman Old Style">5. you need vtk5.0</font></div>
<div> </div>
<div><font face="Bookman Old Style">Regads,</font></div>
<div> </div>
<div><font face="Bookman Old Style"><span name="st">Yixun</span>
Liu</font></div>
<div><br>
</div>
<div> </div>
</div>
</div>
</blockquote>
</div>
<br>
</blockquote>
</span></div>
</div>
</blockquote>
</div>
<br>
</span></div>
<div> </div>
</div>
</blockquote>
</div>
<br>
</span></div>
<div> </div>
</div>
</blockquote>
</div>
<br>
</span></div>
<br>
_______________________________________________<br>
This is the private VTK discussion list.<br>
Please keep messages on-topic. Check the FAQ at: <a
href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank"
onclick="return top.js.OpenExtLink(window,event,this)">
http://www.vtk.org/Wiki/VTK_FAQ</a><br>
Follow this link to subscribe/unsubscribe:<br>
<a href="http://www.vtk.org/mailman/listinfo/vtkusers"
target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.vtk.org/mailman/listinfo/vtkusers
</a><br>
<br>
<br>
</blockquote>
</div>
<br>
</span></div>
<div>
<pre><hr size="4" width="90%"></pre>
</div>
<div><span class="q">_______________________________________________
This is the private VTK discussion list. Please keep messages on-topic.
Check the FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ"
target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.vtk.org/Wiki/VTK_FAQ</a>
Follow this link to subscribe/unsubscribe:
<a href="http://www.vtk.org/mailman/listinfo/vtkusers"
target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.vtk.org/mailman/listinfo/vtkusers</a>
</span></div>
<div></div>
</div>
</blockquote>
</div>
<br>
</blockquote>
</body>
</html>