[vtkusers] Joining two images
david_pont at hotmail.com
Mon Sep 17 23:11:48 EDT 2001
I want to join two images which must be translated and rotated to be
aligned. My pipeline begins (one per image):
vtkReslice - SetOutputOrigin = translate
vtkTransform - RotateWXYZ = rotate
Then for each image I do:
to get the new extent of the images, generally increased due to rotation. I
obtain the outer extent for the two images.
The pipeline continues:
vtkConstantPad->SetOutputWholeExtent(); with the outer extent
vtkImageAppend - SetAppendAxis( 2 ); here the twin pipeline meets
vtkTIFFWriter - SetDimensionality( 2 );
But all I get out is a completely black image, although of a plausable size.
Any clues ? I have done quite a bit of vtk but never any vtkImage stuff.
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