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Hello,
I have a set of points and use alphashapes to get the boundary of these 
points.

as.get_alpha_shape_edges(std::back_inserter(edges),
                           Alpha_shape_3::SINGULAR);

But how can I write the edges into a file that I can have look on them in 
grass
gis for example?


for(it = edges.begin(), it != edges.end(); ++it)
{
cout << *it << endl;
}

does not work.

Does anybody know how to do it??

Thanks

Andi