CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Do you have a minimal example showing the issue?

Depending on what you need, you might be interested by the corefinement
plugin in the Polyhedron demo that performs boolean operations on 
Polyhedra directly (select the two polyhedra in the A/B column). The 
constraint is that the intersection polylines between the polyhedra are
closed (including the boundaries)

Sebastien.

On 02/14/2013 03:36 PM, Chris Theis wrote:
> Hello,
>
> I'm currently trying to implement a module which needs to perform boolean
> operations on polyhedra.
> In general I'm using a class which is derived from CGAL::Polyhedron_3 for
> managing my solids and for the boolean ops I would like to convert the
> polyhedra to nef_polyhedra and then back.
>
> If I do something like this:
>
>    CSGPolyhedron<Kernel, CGAL::Polyhedron_items_3>  TestPoly;
>    CGAL::Nef_polyhedron_3<Kernel>  TestSolid( TestPoly );
>
> then the compiler is happy. However, I have extended my polyhedron items so
> my actual conversion would look like:
>
>    CSGPolyhedron<Kernel, CItemsEx>  TestPoly;
>    CGAL::Nef_polyhedron_3<Kernel>  TestSolid( TestPoly );
>
> CItemsEx is derived from CGAL::Polyhedron_items_3 and handles the
> information for vertex&  face normals. However, when I'm using my extended
> items then the compiler starts complaining:
>
> snc_structure.h(174): error C2903: 'Halffacet' : symbol is neither a class
> template nor a function template
> ....and many more error messages
>
> I could trace this problem back to the use of the extended items. In
> principle I would not need the extended functionality within the nef
> polyhedra. But I don't know how to do the conversion of my extended
> polyhedron to the nef_polyhedron. The available constructors do not seem to
> work.
>
> Is there any other way to do this? I'd greatly appreciate any hint in this
> direction because I would really like to keep my extended items for the
> polyhedra.
>
> Thanks a lot
> Chris
>
>
>
>
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/Extended-polyhedra-nef-polyhedra-tp4656726.html
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