POLYGONS3D Description of functions operating on 3D polygons.

   A 3D polygon is simply a set of 3D points (called vertices) which are
   assumed to be located in the same plane.
   Several functions are provided for computing basic geometrical
   parameters (centroid, angles), or intersections with lines or planes.

   See also:
   polygonArea3d, triangleArea3d, polygonCentroid3d, polygon3dNormalAngle 
   intersectLinePolygon3d, intersectLineTriangle3d, intersectRayPolygon3d
   clipConvexPolygon3dHP
   drawPolygon3d, drawPolyline3d, fillPolygon3d

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 Author: David Legland
 e-mail: david.legland@grignon.inra.fr
 Created: 2008-10-13,    using Matlab 7.4.0.287 (R2007a)
 Copyright 2008 INRA - BIA PV Nantes - MIAJ Jouy-en-Josas.

Package: matgeom