[vtk-developers] LayerNumber property of an ImageSlice without ImageStack

[David Doria]

Am I correct that the LayerNumber property of vtkImageSlice does not
do anything if the slice is not in a vtkImageStack? It seems like the
same behavior should occur if I add two slices to the renderer or if I
add two slices to a stack and then add the stack to the renderer, but
the LayerNumbers only seem to be obeyed in the later.

At the very least perhaps a note here:
http://www.vtk.org/doc/nightly/html/classvtkImageProperty.html#a1f26f7693d9b7ce86a850a0c5c1a5bc3
or here: http://www.vtk.org/doc/nightly/html/classvtkImageProperty.html#ac2c1b6c138e1112469beb10783c4dcaa
explaining the difference?

Thanks,

David