[vtkusers] Empty cut through different Images

[Sebastian Klocke]

Hi everybody,

I'm using vtkImageReslice to get slices out of different vtkImageData 
objects. I use an ImplicitPlaneWidget to get the cutting plane, then 
apply it to each imageData in a vtkDataSetCollection.
Now my problem: when the cutting plane is on the outside of one of the 
images, I get an empty slice over the whole output extent, which hides 
part of the output for other images. SetBackgroundLevel/Color for 
ImageReslice did not work for me, could someone please give me other 
ideas how to hide or avoid an empty slice?

Thanks
Sebastian