[vtkusers] (constrained) delaunay2D issue

[Sebastien MARAUX]

Hello

I am using Delaunay2D for triangulating polygons 
(representing dB levels around airports).

I prefer this way to tesselate method as it can deal with 
holes.

For a special dB level, I can have several polygons defining islands and holes (depending on polygon orientation).

So I set the polydata as input and as source, so that holes are taken off the object.

1. there is an issue using this method with most of my 
polygons : I can obtain "wrong" triangles being holes instead 
of filled (see enclosed) How can I fix it ?

2. Is there other ways of dealing with holes, based on 
tesselate, which would be faster than  this delaunay 
method?

Thank you in advance

Sebastien MARAUX
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