CGAL users discussion list

[Geordie Moffatt <>]

Hi all, I’m developing a plugin for some 3D software and need to convert CGAL’s Polyhedron type to a “Mesh” type.

 

I can successfully iterate over the Polyhedron’s vertices and extract their position.but am having trouble with the facets.

 

How do I extract the indices of the vertices used by a facet relative to the main list of vertices? 

 

For example, if a polyhedron has 8 verts, face 2 might use verts  2, 3, 4.  I need to get at these vertex indices.

 

Here’s the code snippet where I’m iterating over my facets:

 

// Creating faces

int fc = 0;            

for (CGAL_Facet_iterator fIter = inPoly.facets_begin(); fIter != inPoly.facets_end(); fIter++)

{

      int faceDeg = fIter->facet_degree();

      CGAL_Halfedge_circulator edgecirculator = fIter->facet_begin();                    

                       

      for(int i = 0; i < faceDeg ;i++)

      {

            // ****** Need to get at facet vertex indices here ******        

            edgecirculator++;

      }

 

      fc++;

}

 

Thanks!

 

Geordie

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