mirror of https://github.com/vitalif/openscad
more cleanup
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@ -20,20 +20,15 @@
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#include <boost/foreach.hpp>
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#include <vector>
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/*
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ZRemover
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This class converts one or more already 'flat' Nef3 polyhedra into a Nef2
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polyhedron by stripping off the 'z' coordinates from the vertices.
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polyhedron by stripping off the 'z' coordinates from the vertices. The
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resulting Nef2 poly is accumulated in the 'output_nefpoly2d' member variable.
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The class uses the 'visitor' pattern from the CGAL manual -- multiple 3d
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Nef polys fed to this class, with the resulting Nef2 poly accumulating
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in the 'output_nefpoly2d' member variable.
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Some notes on CGAL's Nef Polyhedron2:
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Notes on CGAL's Nef Polyhedron2:
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1. The 'mark' on a 2d Nef face is important when doing unions/intersections.
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If the 'mark' of a face is wrong the resulting nef2 poly will be unexpected.
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@ -44,9 +39,7 @@ Some notes on CGAL's Nef Polyhedron2:
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the CGAL::is_simple_2() test, resulting in improperly marked nef2 polys.
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3. 3d facets have 'two sides'. we throw out the 'down' side to prevent dups.
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Debugging output is in heavily commented SVG format.
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See also
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The class uses the 'visitor' pattern from the CGAL manual. See also
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http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Nef_3/Chapter_main.html
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http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Nef_3_ref/Class_Nef_polyhedron3.html
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OGL_helper.h
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