[vtkusers] Saving the image generated by vtkImageViewer

[Michael Györffy]

Hello:

I have a data set which I'm trying to slice up at an angle and save each
new section. I can reslice it but I can't save the individual slices. What
am
I doing wrong?

I'm trying to save the results of vtkImageViewer as tiffs in the loop at
the end of
the following script.

Thank you for any help,

Mike



int main (void)
{
   int i;
   char filename[2000];

vtkPNMReader *reader = vtkPNMReader::New();
  reader-> ReleaseDataFlagOff();
  reader-> SetDataByteOrderToLittleEndian();
  reader-> SetDataExtent (0,343, 0,512, 1,287);
  reader-> SetDataOrigin (-171.5, -256, -143.5);
  reader-> SetFilePrefix ("/Temp");
  reader-> SetDataMask (0x7fff);

vtkTransform *transform = vtkTransform::New();
  transform-> RotateX (45);
  transform-> RotateY (45);
  transform-> RotateZ (0);

vtkImageReslice *reslice = vtkImageReslice::New();
  reslice-> SetInput (reader->GetOutput());
  reslice-> SetResliceTransform(transform);
  reslice-> InterpolateOn();
  reslice-> SetBackgroundLevel (1);

vtkImageViewer *viewer = vtkImageViewer::New();
  viewer-> SetInput (reslice->GetOutput());
  viewer-> SetColorWindow(200);
  viewer-> SetColorLevel(100);

vtkWindowToImageFilter *w2if = vtkWindowToImageFilter::New();

vtkPNMWriter *pnmwriter=vtkPNMWriter::New();

for (i=1; i<287; i++)
	{
	sprintf(filename, "anim.%d.pnm", i);
        viewer-> SetZSlice(i);
  	viewer-> Render();

        printf("Image number %d. \n", i);

        w2if->SetInput(viewer);
  	w2if->Modified();

  	pnmwriter->SetInput(w2if->GetOutput());
        pnmwriter->SetFileName(filename);
  	pnmwriter->Write();

        }

  reader->Delete();
  transform->Delete();
  reslice->Delete();
  viewer->Delete();
  w2if->Delete();
  pnmwriter->Delete();

  }