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ENH: cv2DMesh and cvMesh: Addition of 2D mesher.
cv2DMesh: Initial commit cvMesh: Constructors take Time argument instead of conformalVoronoiMesh
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laurence
214
applications/utilities/mesh/generation/cv2DMesh/cv2DMesh.C
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214
applications/utilities/mesh/generation/cv2DMesh/cv2DMesh.C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2007-2010 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Application
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cv2DMesh
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Description
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Conformal-Voronoi 2D extruding automatic mesher with grid or read
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initial points and point position relaxation with optional
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"squarification".
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\*---------------------------------------------------------------------------*/
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#include "CV2D.H"
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#include "argList.H"
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#include "IFstream.H"
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#include "MeshedSurfaces.H"
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#include "shortEdgeFilter2D.H"
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#include "extrude2DMesh.H"
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#include "polyMesh.H"
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#include "PatchTools.H"
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#include "patchTo2DpolyMesh.H"
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#include "extrudeModel.H"
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#include "polyTopoChange.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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argList::noParallel();
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argList::validArgs.clear();
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argList::validArgs.append("surface");
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argList::validOptions.insert("pointsFile", "<filename>");
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#include "setRootCase.H"
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#include "createTime.H"
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// Read control dictionary
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// ~~~~~~~~~~~~~~~~~~~~~~~
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dictionary controlDict(IFstream("system/" + args.executable() + "Dict")());
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dictionary shortEdgeFilterDict(controlDict.subDict("shortEdgeFilter"));
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dictionary extrusionDict(controlDict.subDict("extrusion"));
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Switch extrude(extrusionDict.lookup("extrude"));
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label nIterations(readLabel(controlDict.lookup("nIterations")));
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label sefDebug(shortEdgeFilterDict.lookupOrDefault<label>("debug", 0));
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// Read the surface to conform to
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// querySurface surf(args.args()[1]);
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// surf.writeTreeOBJ();
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// Info<< nl
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// << "Read surface with " << surf.size() << " triangles from file "
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// << args.args()[1] << nl << endl;
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// surf.write("surface.obj");
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// Read and triangulation
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// ~~~~~~~~~~~~~~~~~~~~~~
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CV2D mesh(runTime, controlDict);
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if (args.options().found("pointsFile"))
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{
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fileName pointFileName(IStringStream(args.options()["pointsFile"])());
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mesh.insertPoints(pointFileName);
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mesh.insertSurfacePointPairs();
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mesh.boundaryConform();
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}
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else
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{
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mesh.insertGrid();
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mesh.insertSurfacePointPairs();
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mesh.boundaryConform();
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}
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for (int iter=1; iter<=nIterations; iter++)
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{
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Info<< nl
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<< "Relaxation iteration " << iter << nl
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<< "~~~~~~~~~~~~~~~~~~~~~~~~" << endl;
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scalar relax =
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mesh.meshingControls().relaxationFactorStart
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+
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(
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mesh.meshingControls().relaxationFactorEnd
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- mesh.meshingControls().relaxationFactorStart
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)
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*scalar(iter)/scalar(nIterations);
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Info<< "Relaxation = " << relax << endl;
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mesh.newPoints(relax);
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}
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mesh.write();
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Info<< "Finished Delaunay in = "
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<< runTime.cpuTimeIncrement() << " s." << endl;
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shortEdgeFilter2D sef(mesh, shortEdgeFilterDict);
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shortEdgeFilter2D::debug = sefDebug;
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sef.filter();
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Info<< "Meshed surface after edge filtering :" << endl;
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sef.fMesh().writeStats(Info);
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Info<< "Write .obj file : MeshedSurface.obj" << endl;
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sef.fMesh().write("MeshedSurface.obj");
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Info<< "Finished filtering in = "
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<< runTime.cpuTimeIncrement() << " s." << endl;
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patchTo2DpolyMesh poly2DMesh
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(
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sef.fMesh(),
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sef.patchNames(),
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sef.patchSizes(),
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sef.mapEdgesRegion()
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);
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poly2DMesh.createMesh();
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polyMesh pMesh
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(
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IOobject
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(
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polyMesh::defaultRegion,
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runTime.constant(),
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runTime,
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IOobject::NO_READ,
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IOobject::NO_WRITE,
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false
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),
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xferMove(poly2DMesh.points()),
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xferMove(poly2DMesh.faces()),
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xferMove(poly2DMesh.owner()),
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xferMove(poly2DMesh.neighbour())
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);
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Info<< "Constructing patches." << endl;
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List<polyPatch*> patches(poly2DMesh.patchNames().size());
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forAll(patches, patchI)
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{
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patches[patchI] = new polyPatch
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(
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poly2DMesh.patchNames()[patchI],
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poly2DMesh.patchSizes()[patchI],
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poly2DMesh.patchStarts()[patchI],
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patchI,
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pMesh.boundaryMesh()
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);
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}
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pMesh.addPatches(patches);
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if (extrude)
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{
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// Point generator
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autoPtr<extrudeModel> model(extrudeModel::New(extrusionDict));
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extrude2DMesh extruder(pMesh, extrusionDict, model());
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polyTopoChange meshMod(pMesh.boundaryMesh().size());
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extruder.addFrontBackPatches();
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extruder.setRefinement(meshMod);
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autoPtr<mapPolyMesh> morphMap = meshMod.changeMesh(pMesh, false);
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pMesh.updateMesh(morphMap);
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pMesh.setInstance("constant");
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}
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pMesh.write();
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Info<< "Finished extruding in = "
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<< runTime.cpuTimeIncrement() << " s." << endl;
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Info<< nl << "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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