CGAL users discussion list

[Mael Rouxel-Labbé <>]

Hello,

There are no *simple* examples of mapping to 3D derived from the UV space: there is code to texture the input with a UV checker board as to produce the images you can see on https://doc.cgal.org/latest/Surface_mesh_parameterization/index.html#Chapter_Planar_Parameterization_of_Triangulated_Surface_Meshes, but it relies on the OpenGL texturing functionalities for the lowest parts.

What you are doing sounds correct; if you would like you can share the code and I will have a closer look.

Best,
Mael

On 16/06/2022 20:43, Chase Bosman wrote:

        Hello,
      
        
      
      
        I am currently making use of the "planar parameterization of
        triangulated surface mesh" package to parameterize/map a 3D
        triangulated surface to UV space. We have point data which we
        derive from the UV space data, which we intend to map back to
        the original 3D triangulated surface. Does CGAL have any
        examples of mapping the derived UV space data back to the
        original 3D triangulated surface? 
      
        
      
      
        We currently have an implementation for mapping back from the UV
        space to the 3D space utilizing an AABB tree/barycentric
        coordinates, but after looking into the actual CGAL
        implementation of what is occurring in build_AABB_tree() and
        locate_with_AABB_Tree(), I have my doubts as to whether this is
        correctly mapping back from the UV space to the 3D space.
      
        
      
      
        Thanks,
      
        Chase
      
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