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[cgal-discuss] moving point in ConstrainedTriangulation


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  • From: piR <>
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  • Subject: [cgal-discuss] moving point in ConstrainedTriangulation
  • Date: Wed, 7 Apr 2010 06:09:55 -0800 (PST)



Hi everyone,

This is I guess a pretty stupid question but I just cannot seem to make it
work properly.
I need to move a point within a triangulation.
For that aim, I use the Vertex_handle->setpoint(Point) function a bit
recklessly.
Usually the new positions are almost the same as the previous ones (it is a
relaxation step), so it seems to work fine.
But of course, since I do not properly check whether the predicates are
still verified after the move, there are cases where my triangulation gets
corrupted.

Would you mind helping me doing this properly?
I tried to backtrack according to the result of the is_valid() functions,
but to no avail.
I swear I looked around, and only found a solution for a more restrictive
Delaunay triangulation somewhere.
Am a total CGAL newbie and this needs to work asap.

MANY THANKS!
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