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[ChaoM <>]

Hello Sebastien:
     These days ,I try to use the Convex_Hull_3  to check my polyhedron.
Before I use it ,there are 360 points in the polyhedron. After that,there
exits 325 points. And ,should I also  give the insex of points to the Convex
too? 
     After using the Convex ,I try to use the Nef union, but there is a
error that "CGAL precondition is simple()"?  Do you have any idea to solve
it ?
   Thanks !
     



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