AW: AW: [Insight-users] Show 3d image data by vtk, cont'

[Luis Ibanez]

Hi Jiang,

A better starting point for visualizing you dataset with VTK
could be to use the vtkImageViewer2 class:

http://www . vtk . org/doc/nightly/html/classvtkImageViewer2 . html


Regards,


   Luis



-------------------
jiang wrote:
> Hello Luis,
> Thank you for your suggestions. Now I try to answer part of your questions.
> 
> -----Ursprungliche Nachricht-----
> Von: Luis Ibanez [mailto:luis . ibanez at kitware . com]
> Gesendet: Dienstag, 30. September 2003 17:19
> An: jiang
> Cc: ITK
> Betreff: Re: AW: [Insight-users] Show 3d image data by vtk, cont'
> 
> 
> 
> Hi Jiang,
> 
> A) Could you please describe the VTK pipeline
>     that you are using for visualizing this data ?
> ##ITK to VTK and VTK pipeline
> /*Create a pipeline ITK-->VTK*/
> 	vtkImageImport* importer = vtkImageImport::New();
> 	... ...//I have sent this part before. It is same as the example
> itkImageToVTKImageFilter
> 
> 	structPts= vtkStructuredPoints::New();
> 	vtkImageToStructuredPoints* its=vtkImageToStructuredPoints::New();
> 	its->SetInput(importer->GetOutput());
> 	structPts=its->GetOutput();
> 	vtkDataSetMapper* mapper=vtkDataSetMapper::New();
> 	mapper->SetInput(structPts);
> 
> 	vtkActor* actor=vtkActor::New();
> 	actor->SetMapper(mapper);//coneMapper
> 
> 	renderer->AddActor(actor);
>       renderer->SetBackground(1,1,1);
> 	renWin->Render();
> ##
> B) Did you verified that the data was read
>     correctly into memory ?
> 
>     (for example, you could save the volume
>     in another file format just after reading
>     it from the DICOM series, and then use
>     the ImageViewer application in
>     InsightApplications)
> ##I consider the reading procedure should be correct. Because I copy the
> first image of the series of DICOM files into QImage, and show it in the
> screen. It is correct image. So I didn't try to write and test again.
> ##
> 
> C) Did you verified that the data was converted
>     correctly from ITK to VTK ?
> 
>     (again, you could use a vtk writer in order
>     to save the vktImageData in a file and open
>     it with some standard viewer). You could
>     use VolView for this purpose, now that there
>     is a free version available for download.
> ##I'm not sure if it is correct. I will try it as you said.
> 
> D) Please take a look at the application from
>     the ISIS center that was described in the
>     previous email. You may find some useful
>     hints on how to use the toolkits together.
> ##I will try it. Thank you.
> 
> 
> Regards,
> 
> 
>    Luis
> 
> 
> 
> 
> ----------------
> jiang wrote:
> 
>>Hi Luis,
>>As you said, I use the library VtkQt that developed by M. Koenig to
> 
> combine
> 
>>VTK and QT. It works fine. However my problem is not solved. When the data
>>is transfered from ITK to VTK, and rendered by VTK, there is only one blue
>>block with some black points, not the images I readed. And there are only
>>two images in the series, but the block is very thick, much more than the
>>depth of two images.
>>Does anybody do the similar work as me? Please tell me how can I solve
> 
> this
> 
>>problem?
>>
>>Thanks a lot!
>>
>>Chunyan Jiang
>>
> 
> 
> 
>