CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

The possible new position of vertex is computed using a functor that
is a model of the concept GetPlacement.
http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Surface_mesh_simplification_ref/FunctionObjectConcept_GetPlacement.html

In particular, you can get the information about the collapsed edge
using a model of the EdgeProfile concept:
http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Surface_mesh_simplification_ref/Concept_EdgeProfile.html

This neighborhood should allow you to update your texture information.
Look at the models provided by CGAL to see how you can provide you own
models fitting your needs.

Sebastien.


JWANG wrote:
> hi,all
>    I have use Lindstrom-Turk edge-collapse algorithm for mesh
> simplification.but I had some trouble.
> In my case,i construct polyhedron through delaunay triangles with texture
> coords,then use Lindstrom-Turk algorithm for simplification.
>    How can i get the new texture coords with Get_Placement polices? or what
> esle i can do to calculate texture coords.
>
> thanks!
>
> WANG
>
> --
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> http://cgal-discuss.949826.n4.nabble.com/Lindstrom-Turk-with-texture-coords-problem-tp3631838p3631838.html
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