broken code, as I ask Sebastien to find the compile timer error

BGL/include/CGAL/boost/graph/iterator.h

@@ -444,7 +444,7 @@ public:
   Self& operator++() 
   {
     CGAL_assertion(g != NULL);
-    pos = next(pos,*g); 
+    pos = next(pos,*g);  // AF: added CGAL:: it compiles
     if ( pos == anchor)
       ++winding;
     return *this;

Surface_mesh_parameterization/examples/Surface_mesh_parameterization/CMakeLists.txt

@@ -24,6 +24,7 @@ if ( CGAL_FOUND )
 
   create_single_source_cgal_program( "lscm.cpp" )
   create_single_source_cgal_program( "seam.cpp" )
+  create_single_source_cgal_program( "seam_Polyhedron_3.cpp" )
   create_single_source_cgal_program( "discrete_authalic.cpp" )
   create_single_source_cgal_program( "Simple_parameterization.cpp" )
 

Surface_mesh_parameterization/examples/Surface_mesh_parameterization/seam_Polyhedron_3.cpp

@@ -0,0 +1,118 @@
+#include <CGAL/Simple_cartesian.h>
+#include <CGAL/Polyhedron_3.h>
+#include <CGAL/boost/graph/graph_traits_Polyhedron_3.h>
+#include <CGAL/boost/graph/Seam_mesh.h>
+#include <CGAL/parameterize.h>
+
+#include <boost/foreach.hpp>
+#include <iostream>
+#include <fstream>
+
+
+typedef CGAL::Simple_cartesian<double>      Kernel;
+typedef Kernel::Point_2                     Point_2;
+typedef Kernel::Point_3                     Point_3;
+typedef CGAL::Polyhedron_3<Kernel>          SurfaceMesh;
+
+typedef boost::graph_traits<SurfaceMesh>::edge_descriptor SM_edge_descriptor;
+typedef boost::graph_traits<SurfaceMesh>::halfedge_descriptor SM_halfedge_descriptor;
+typedef boost::graph_traits<SurfaceMesh>::vertex_descriptor SM_vertex_descriptor;
+
+typedef CGAL::Unique_hash_map<SM_halfedge_descriptor,Point_2> UV_uhm;
+typedef CGAL::Unique_hash_map<SM_edge_descriptor,bool> Seam_edge_uhm;
+typedef CGAL::Unique_hash_map<SM_vertex_descriptor,bool> Seam_vertex_uhm;
+
+typedef boost::associative_property_map<UV_uhm> UV_pmap;
+typedef boost::associative_property_map<Seam_edge_uhm> Seam_edge_pmap;
+typedef boost::associative_property_map<Seam_vertex_uhm> Seam_vertex_pmap;
+
+typedef CGAL::Seam_mesh<SurfaceMesh, Seam_edge_pmap, Seam_vertex_pmap> Mesh;
+
+typedef boost::graph_traits<Mesh>::vertex_descriptor vertex_descriptor;
+typedef boost::graph_traits<Mesh>::halfedge_descriptor halfedge_descriptor;
+typedef boost::graph_traits<Mesh>::face_descriptor face_descriptor;
+
+/// A helper class that writes a face as a polyline in the xy-plane
+struct Face2Polyline {
+  const Mesh& mesh;
+  const UV_pmap uvpm;
+  
+  Face2Polyline(const Mesh& mesh, const UV_pmap& uvpm)
+    : mesh(mesh), uvpm(uvpm)
+  {}
+  
+  void operator()(face_descriptor fd) const 
+  {
+    halfedge_descriptor hd = halfedge(fd,mesh); 
+    
+    std::cout << "4 " << uvpm[target(hd,mesh)].x() << " " << uvpm[target(hd,mesh)].y() << " 0 ";
+    /*    
+    hd = next(hd,mesh);
+    BOOST_FOREACH(vertex_descriptor vd, vertices_around_face(hd,mesh)){
+      std::cout << uvpm[vd].x() << " " << uvpm[vd].y() << " 0 ";
+    }
+    */
+    std::cout << std::endl;
+  }  
+};
+
+int main(int argc, char * argv[])
+{
+  SurfaceMesh sm;
+  std::vector<SM_edge_descriptor> seam; 
+
+  std::ifstream in_mesh((argc>1)?argv[1]:"data/lion.off");
+  in_mesh >> sm;
+
+  std::vector<SM_vertex_descriptor> id2v;
+  BOOST_FOREACH(SM_vertex_descriptor vd, vertices(sm)){
+    id2v.push_back(vd);
+  }
+ 
+  // Two property maps to store the seam edges and vertices
+  Seam_edge_uhm seam_edge_uhm(false);
+  Seam_edge_pmap seam_edge_pm(seam_edge_uhm);
+
+  Seam_vertex_uhm seam_vertex_uhm(false);
+  Seam_vertex_pmap seam_vertex_pm(seam_vertex_uhm);
+
+  std::ifstream in((argc>2)?argv[2]:"data/lion.selection.txt");
+  int s,t;
+  SM_halfedge_descriptor smhd;
+  while(in >> s >> t){
+    SM_vertex_descriptor svd = id2v[s], tvd = id2v[t]; 
+    SM_edge_descriptor ed = edge(svd, tvd,sm).first;
+    if(! is_border(ed,sm)){
+        put(seam_edge_pm, ed, true);
+        put(seam_vertex_pm, svd, true);
+        put(seam_vertex_pm, tvd, true);
+        if(smhd == boost::graph_traits<SurfaceMesh>::null_halfedge()){
+          smhd = halfedge(edge(svd,tvd,sm).first,sm);
+        }
+      }
+  }
+  
+  Mesh mesh(sm, seam_edge_pm, seam_vertex_pm);
+
+  // The 2D points of the uv parametrisation will be written into this map
+  // Note that this is a halfedge property map, and that the uv
+  // is only stored for the canonical halfedges representing a vertex  
+
+  UV_uhm uv_uhm;
+  UV_pmap uv_pm(uv_uhm);
+
+  halfedge_descriptor bhd(smhd);
+  bhd = opposite(bhd,mesh); // a halfedge on the virtual border
+
+  //  CGAL::parameterize(mesh, bhd, uv_pm);
+  get(CGAL::vertex_point, mesh);
+  Face2Polyline f2p(mesh,uv_pm);
+  // As the seam may define a patch we write
+  /*
+  CGAL::Polygon_mesh_processing::connected_component(face(opposite(bhd,mesh),mesh),
+                                                     mesh,
+                                                     boost::make_function_output_iterator(f2p));
+  */
+  return 0;
+}
+

Surface_mesh_parameterization/include/CGAL/Fixed_border_parameterizer_3.h

@@ -381,7 +381,7 @@ parameterize(TriangleMesh& mesh,
       if( main_border.find(v) == main_border.end() )
         {
           int index = get(vimap,v);
-          put(uvmap,v,Point_2(Xu[index],Xv[index]));
+          //AF put(uvmap,v,Point_2(Xu[index],Xv[index]));
           put(vpm,v,true);
         }
     }