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IDProjectCategoryView StatusDate SubmittedLast Update
0001641VTK(No Category)public2005-03-03 12:582016-08-12 09:54
Reporterlydia 
Assigned ToKitware Robot 
PrioritynormalSeveritymajorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0001641: bug in vtkImageviewer2 when one of the image dimension exeeds 512!!!
Descriptionalready posted a mail concerning this problem but now I am quite sure that the problem is in the class vtkImageViewer2. This class cannot display images when either the width or the height exceeds 512!!

Below is my code and attached a stack of MRI images..

you will notice the following:

1. With vtkImageViewer2, the display is not corret (the second dimension of the image is 611)

2. If you use vtkImageViewer instead of vtkImageViewer2, it will properly..( Strange! isn't it?)

3. Another remark, if you replace i by 5 for example or any number less than dim[2], and if you set up a breakpoint after viewer->Render(), you will notive that the first display is done properly, then if you continue inside the "while", the same image will not be displayed properly...

Hope all these information will help vtk developers to find the bug and help me because I spent so many time in debugging my program thinking that the bug was from me...

Thanks in advance

#include "vtkStructuredPointsReader.h"

#include "vtkStructuredPoints.h"

#include "vtkImageImport.h"

#include "vtkImageViewer.h"

#include "vtkImageViewer2.h"

 

void main ()

{

vtkStructuredPointsReader *reader=vtkStructuredPointsReader::New();

reader->SetFileName("C:/TEMP/MRI.vtk");

reader->Update();

int dim[3]; double spacing [3];

reader->GetOutput()->GetDimensions(dim);

reader->GetOutput()->GetSpacing(spacing);

vtkStructuredPoints *dcm_volume=vtkStructuredPoints::New();

dcm_volume->SetDimensions(dim[0],dim[1],dim[2]);

dcm_volume->SetScalarType(VTK_UNSIGNED_CHAR);

dcm_volume->SetNumberOfScalarComponents(1);

dcm_volume->AllocateScalars();

dcm_volume->DeepCopy(reader->GetOutput());

vtkImageViewer2 *viewer = vtkImageViewer2::New();

int i=0;

while (i<dim[2])

{

unsigned char *vol1= new unsigned char[(dim[0]*dim[1])/sizeof( unsigned char)];

memmove(vol1, (unsigned char *)dcm_volume->GetScalarPointer()+i*(dim[0]*dim[1]),dim[0]*dim[1]);


vtkImageImport *importer_pro=vtkImageImport::New();

importer_pro->SetWholeExtent(0,dim[0]-1,0,dim[1]-1,1,1);

importer_pro->SetDataExtent(0,dim[0]-1,0,dim[1]-1,1,1);

importer_pro->SetDataSpacing(1,1,1);

importer_pro->SetDataOrigin(0, 0,0);

importer_pro->SetDataScalarType(VTK_UNSIGNED_CHAR);

importer_pro->SetNumberOfScalarComponents(1);

importer_pro->SetImportVoidPointer((unsigned char *) vol1);

importer_pro->Update();


viewer->SetSize(500,500);

viewer->SetInput(importer_pro->GetOutput() );

viewer->SetZSlice(1);

viewer->SetColorWindow(255);

viewer->SetColorLevel(127.5);

viewer->Render();

i++;

delete [] vol1;

importer_pro->Delete();

}

}
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-  Notes
(0036774)
Kitware Robot (administrator)
2016-08-12 09:54

Resolving issue as `moved`.

This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page.

- Issue History
Date Modified Username Field Change
2008-11-30 09:23 Mathieu Malaterre Assigned To Mathieu Malaterre => François Bertel
2008-11-30 20:19 François Bertel Assigned To François Bertel =>
2011-06-16 13:11 Zack Galbreath Category => (No Category)
2016-08-12 09:54 Kitware Robot Note Added: 0036774
2016-08-12 09:54 Kitware Robot Status expired => closed
2016-08-12 09:54 Kitware Robot Resolution open => moved
2016-08-12 09:54 Kitware Robot Assigned To => Kitware Robot


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