[vtkusers] How about generating intersecting regions from a set of line-segments

[6dgis at 163.com]

Hi,All
	Now I am trying to generating intersecting regions using vtk.
Given a set of line-segments int the same plane, they intersect with
each other, and I interested in the intersecting regions, how should 
I do to finish this task?Any help ? Thx in advance!