CGAL users discussion list

[Andrea Borsic <>]

Hi All,

I am interested in using successive co-refinement on some Surface objects and also in tracking the original surface the output belongs to using a property map

I have found two useful examples:

- corefinement_consecutive_bool_op.cpp

- corefinement_mesh_union_with_attributes.cpp

the first example shows how to use an exact point map and the second example shows how to use an ID map.

I am puzzled about how to combine the examples, specifically how to pass the ID map and the exact point map at the same time. The documentation of the sequence of named parameters indicates that parameters can be concatenated with the dot operator. The documentation of, for example, corefine_and _compute_uninon() indicated that three parameters can be specified: np1, np2, and np_out for input 1, 2, and output

The example "corefinement_consecutive_bool_op.cpp" matches the documentation information above with a call that looks like

PMP::corefine_and_compute_intersection(mesh1,
                                              mesh2,
                                              mesh1,
                                              params::vertex_point_map(mesh1_vpm),
                                              params::vertex_point_map(mesh2_vpm),
                                              params::vertex_point_map(mesh1_vpm) 

The example "corefinement_mesh_union_with_attributes.cpp" uses a Visitor structure, and specifies only one parameter with a call that looks like

PMP::corefine_and_compute_union(mesh1, mesh2, out, CGAL::parameters::visitor(visitor));

If I want to combine the two, how can I pass the exact point maps and the visitor at the same time? Is that possible? What would be the supported syntax?

Thanks for any advice,

Best Regards,

Andrea