CGAL users discussion list

[Andreas Fabri <>]

陳 柏宏 wrote:
> Hi,
> Is it possible to use the Delaunay triangulation graph traits with 
> Alpha_shape_2?
> 
> Will replacing everything in the graph_Traits_Delaunay_triangulation_2.h 
> file with Alpha_shape_2 work?
> 
> Or is there a way to extract the underlying Delaunay triangulation from 
> a Alpha_shape_2 object?
> 
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I think the easiest solution would be to do a downcast, as the
alpha shape is derived from the Delaunay triangulation.

andreas