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As soon as the nef polyhedron is built, the only information we have are sphere maps at each vertex of the Nef (each vertex holds an arrangement on the sphere of all incidents simplices). So, AFAIK, it is not possible to get the tree. |
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It is my understanding that a nef polyhedron is essentially conceptually a tree of half spaces. In the documentation on Nef polyhedra we read for example
https://doc.cgal.org/latest/Nef_3/index.html
Given the implementation in CGAL. How can I obtain this tree of halfspaces from an Nef_polyhedron?
Any help is greatly appreciated.
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