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[杨成林 <>]

Maybe let dt.finite_vertices() and dt.finite_vertex_handles() both available.
Handles are needed to manipulate vertices and cells, while facets and edges are used directly. I was confused when I first used CGAL.

2013/4/23 Laurent Rineau (CGAL/GeometryFactory) <>

Le mardi 23 avril 2013 22:07:46 æ ¨æˆ æž— a écrit :
> I want to write like this *for(auto f : dt.finite_facets() )*. Can this be
> added to CGAL?

For Facet that would be easy to add.

But for vertices, in the following loop:

  for(auto v, dt.finite_vertices())

do you expect 'v' to be of type 'Vertex_handle' or of type 'Vertex'?
Currently, the iterators returned by dt.finite_vertices_begin() and
dt.finite_vertices_end() have 'Vertex' as value type, but the iterators are
implicitly convertible to 'Vertex_handle'. As most of the API of the
triangulations use handles to manipulate vertices and cells, a variable of
type Vertex or Cell is not that useful.

--
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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杨成林
Yang Chenglin