The new algorithm provides robust quality triangulations of non-convex polygons. It also produces a best attempt for polygons that are badly warped or self intersecting by minimising the area in which the local normal is in the opposite direction to the overal polygon normal. It is memory efficient when applied to multiple polygons as it maintains and reuses its workspace. This algorithm replaces implementations in the face and faceTriangulation classes, which have been removed. Faces can no longer be decomposed into mixtures of tris and quadrilaterals. Polygonal faces with more than 4 sides are now decomposed into triangles in foamToVTK and in paraFoam.
README for OpenFOAM-dev
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About OpenFOAM
OpenFOAM is a free, open source computational fluid dynamics (CFD) software package released by the OpenFOAM Foundation. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to solid dynamics and electromagnetics.
Copyright
OpenFOAM is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version. See the file COPYING in this directory or
http://www.gnu.org/licenses/, for a description of the GNU General Public
License terms under which you can copy the files.