CGAL users discussion list

[Sukhraj Singh <>]

Hello,

I am trying to create a particular segment (which is the output of surface mesh segmentation) as ROI in Surface Mesh Deformation.

I implemented following code, which is crashing( psb comment below)

==========================================================

void set_all_vertices_as_roi()

  {

    vertex_iterator vb, ve;

    for(boost::tie(vb, ve) = vertices(*polyhedron()); vb != ve; ++vb)

    {

      insert_roi_vertex(*vb);

    }

  }

//Implement it likewise all mesh vertices as roi

  void set_segment_vertices_as_roi(Polyhedron mesh)

  {

    std::size_t number_of_clusters;

    double smoothing_lambda ;

    // create a property-map for segment-ids

    typedef std::map<Polyhedron::Facet_const_handle, std::size_t> Facet_int_map;

    Facet_int_map internal_segment_map;

    boost::associative_property_map<Facet_int_map> segment_property_map(internal_segment_map);

//Run the sdf segmentation algo

    int nb_segments = SegmentPolyhedron(segment_property_map,number_of_clusters, smoothing_lambda ,mesh);

    std::vector <Polyhedron> PolySegments;

    PolySegments.resize(nb_segments);

//Get the segement of the mesh

    GetSegments(mesh,segment_property_map,nb_segments,PolySegments,0);

    vertex_iterator vb, ve;

//Make zeroth segment as ROI

    for(boost::tie(vb, ve) = vertices(PolySegments[0]); vb != ve; ++vb)

    {

      //std::cout << __LINE__ << std::endl;

        insert_roi_vertex(*vb); // GIVES CRASH

    }

  }

===============================================================================

Perhaps it is because of size of deform_mesh, which was  equal to complete non-segmented mesh size. ?

There is k-ring selection as well, which is used when picked by mouse.

Can someone suggest me some other way maybe, so that I could make the mesh segment as ROI

Thanks to provide input.

--

Sukhraj Singh