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[cetium <>]

Hi all,
my purpose is to calculate the total volume of a pile of raw material, coal
or something, then a point cloud was sampled on the suface of the pile.

to calculate the volume i must make a solid polyhedron made of tetrahedrons
from the points, then accumulate all the tetrahedrons' volume.
 
presently i get 2 solutions:
1. use delaunay triangulation to generate a solid polyhedron, but the given
3D point cloud maybe is collected from a concave object, so i give up this
solution; 
2. make a suface model from the points, and then combine the to a planar,
i.e. to make this suface close. but how can i achieve this with cgal?

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