[vtkusers] How to obtain a contour by cutting a surface with a plane

[Junyi Xia]

Dear Vtkers,
        With the help of the list, I successfully reconstructed a 
surface from 2D contours with vtkVoxelContoursToSurfaceFIlter. I am 
curious how to obtain a contour by cutting the reconstructed surface 
with a arbitrary oriented plane?

Thanks,

Junyi