[vtkusers] vtkCutter and slice orientation

[Nicolas Sarrasin]

Hi all,

I am using vtkCutter to slice a STL object in order to compute offsets 
(internal and external ) on the slices.

With vtkCutter I get several contours. Some are inside others but I 
can't find a way to get this type of information.

Here is a print of a slice(blue) for more clarity : 
http://img139.imageshack.us/img139/6747/orientationcontours.png

I was thinking on a kind of filter that could return inner and outter 
contours...

Any idea is welcome.
Thanks by advance.

Nicolas
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