Proposal to add orientation to vtkImageData- Feedback Wanted

Development
25

The API could remain mostly the same, we just need to add a few extra Get/Set methods:

  • Origin(double[3])
  • Spacing(double[3])
  • Directions(vtkMatrix3x3*)
  • IndexToVolumeMatrix(vtkMatrix4x4*)

We might add a few more for convenience/performance, something like these:

  • VolumeToIndexMatrix(vtkMatrix4x4*)
  • VolumeToIndexPosition(double[3], double[3])
  • IndexToVolumePosition(double[3], double[3])

“Rotation” does not sound relevant to me. We don’t rotate anything but we directly define the a coordinate system axis directions.

Calling the volume’s physical coordinate system “Model” does not seem very intuitive to me. “Volume” may be a bit better, but there could be better ones.