CGAL users discussion list

[Marc Alexa <>]

> On 11. Jan 2019, at 11:20, Laurent Rineau (CGAL/GeometryFactory) 
> <>
>  wrote:
> 
>> 
> 
> There is no valid solution to that problem, unless your own 
> `Triangulation_3` 
> type keeps a Boolean field for each cell, indicating whether or not the 
> cell 
> is part of the mesh.

I wrote my own solution and I realized this. It seems the domain boundary 
need not be manifold.

If I used the converter as you indicated below, would it add tetrahedra with 
an infinite vertex during the conversion? 

Thanks!
-Marc


> 
> When the cell converter must be wrote that way:
> 
> Cell_converter
> {
>  Triangulation::Cell operator()(const C3t3::Triangulation::Cell& 
> input_cell) 
> const {
>      Triangulation::Cell output_cell;
>      output_cell.is_in_domain = ( input_cell.subdomain_index() != 0 );
>      return output_cell;
>  }
> 
>  void operator()(const C3t3::Triangulation::Cell&,Triangulation::Cell&) 
> const 
> {}
> };
> 
> 
> 
> -- 
> Laurent Rineau, PhD
> R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
> Release Manager of the CGAL Project       http://www.cgal.org/
> 
> 
> 
> 
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