Thanks for the bug report.
A trivial fix is to replace if (is_border(*circ, mesh)) by if
in the file
But your bug report revealed that in the demo we use some
instead of the region growing function you can see in this example
So if you want to evaluate or use the real function we want to
demo you better
started from the above example.
It further showed that your STL file has borders. You can't see
but there is a border of four edges with two extremely close
in the middle that is
We work on mesh repair and fixing these kind of meshes is in the
It is obviously trivial to fix for the above scenario, but itcan
become arbitrarily complex for more complicated data sets.
Load the .STL into the "polyhedron" demo , and select the
"Mesh Plane Detection" option, accepting defaults, results
in a crash.
There is an out of bounds on a vector at the line 131 in
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Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project
phone: +33.492.954.912 skype: andreas.fabri