CGAL users discussion list

[Peter Hachenberger <>]

Hi David,

for boolean operations on polyhedra, we have the class Nef_polyhedron_3.

http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Nef_3/Chapter_main.html

You can use it with all file formats that Polyhedron_3 can handle.

http://www.cgal.org/Manual/3.4/doc_html/cgal_manual/Polyhedron/Chapter_main.html#Section_21.4

Usually we use off files. Nef_polyhedron_3 also has its own file format. See examples/Nef_3
also on how to use the class.

Peter

----- wrote: -----

To:
From:
Date: 02/03/2009 12:49AM
Subject: [cgal-discuss] 3d boolean tools

I'm looking for a replacement for the gts tools (GNU Triangulated Surface
Library) for taking two 3d objects and creating new 3d objects combining
them, finding their intercept shape, and finding the shape that's inside
one object but not inside the other object.

first question is if cgal can be used for this? I see some reference to
finding the intercept shape between two objects, but nothing for creating
the hape that's the part of one object that's outside the other object.

second question is if there is any sample code that does this?

since my object files are in the gts format it would be ideal to find
something that understands these file formats, but if not I can probably
deal with it.

David Lang
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