CGAL users discussion list

[Jane Tournois <>]

Hello,

if you want to mesh a multi-domain with features, you should use the 
`CGAL::Polyhedral_mesh_domain_with_features_3` [1], and can follow the 
example "Mesh_3/mesh_polyhedral_domain_with_features.cpp" [2].

If you have several polyhedra and want to create a domain from them, 
there is an undocumented constructor in 
Polyhedral_mesh_domain_with_features_3.h that you can use :

```

  /**
   * Constructor from a sequence of polyhedral surfaces, and a bounding
   * polyhedral surface.
   *
   * @param InputPolyhedraPtrIterator must an iterator of a sequence of
   * pointers to polyhedra
   * @param bounding_polyhedron reference to the bounding surface
   */
  template <typename InputPolyhedraPtrIterator>
  Polyhedral_mesh_domain_with_features_3(InputPolyhedraPtrIterator begin,
                                         InputPolyhedraPtrIterator end,
                                         const Polyhedron& 
bounding_polyhedron,
                                         CGAL::Random* p_rng = nullptr)

```

It is still a Polyhedral_mesh_domain_with_features_3 but is built from 
more than 1 polyhedral surface.

Then, you can use the automatic `detect_features()` or the API of 
`CGAL::Mesh_domain_with_polyline_features_3` to set your sharp edges 
before meshing.

Does it help?

Best regards,

Jane.



[1] 
https://doc.cgal.org/latest/Mesh_3/classCGAL_1_1Polyhedral__mesh__domain__with__features__3.html

[2] 
https://doc.cgal.org/latest/Mesh_3/Mesh_3_2mesh_polyhedral_domain_with_features_8cpp-example.html

[3] 
https://doc.cgal.org/latest/Mesh_3/classCGAL_1_1Mesh__domain__with__polyline__features__3.html


--
Jane Tournois, PhD
R&D Engineer at GeometryFactory
http://www.geometryfactory.com/


Le 20/08/2019 à 19:54, imperin a écrit :
> Hello everybody,
>
> Does anybody know how to make mesh generation for multiple domains from 3D
> Polyhedral Domains with sharp edges. Is there an example of it?
>
> Thanks a lot!
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/