[vtkusers] use vtkImagemask to isolate an intersection part???

[Xu Bin]

hello everyone,

I have rendered a volume from a set of MRI image files and I also
added a implicit function(such as vtkSphere) in the same window. The
Problem is how can I use vtkImagemask to isolate the intersection part
of the volume and the implicit function?

-- 
xubin