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This file is part of OpenFOAM. 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 2 of the License, or (at your option) any later version. OpenFOAM is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenFOAM; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
'Cuts' a mesh with a surface. Divides cells into three types - cut, i.e. any of the edges of the cell is split or any edge of the surface pierces any of the faces of the cell. - outside:cell can be reached by meshwave from any of the supplied outside points (without crossing any cut cell) - inside:all other. Used in various meshing programs. Has various utility functions to deal with 'features' on this level where the mesh still has all inside and outside cells. Concepts -------- - point classification: - point used by meshType cells only - point used by non-meshType cells only - point used by both types ('mixed') - hanging cells: meshType cells using mixed points only. These cells would have all their vertices on the surface when extracting the meshType cells. - regionEdges: edges where the cells using it are of mixed type. Or more precise when walking around the edge and looking at the different types of the cells there are more than two regions with same type. Seen from above: Ok: A | A | --+--- | B | B Not ok: A | B | ---+--- | B | A because this latter situation would cause the surface after subsetting type A or B to be multiply connected across this edge. And also when snapping the edge end points to the surface it might cause some twisted faces if the surface is normal to the edge (and smoothing the surface would not help since the points on the edge would be 'pulled' from two different sides) - regionPoints: like regionEdges but now for points. Points where subsetting the mesh would cause a multiply connected outside surface (connected across point, not edge)
Definition in file cellClassification.H.
Go to the source code of this file.
Namespaces | |
namespace | Foam |
Classes | |
class | cellClassification |