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ENH: improvements for surfaceIntersection (issue #450)
- adjust for updates in 'develop'
- change surfaceIntersection constructor to take a dictionary of
options.
tolerance | Edge-length tolerance | scalar | 1e-3
allowEdgeHits | Edge-end cuts another edge | bool | true
avoidDuplicates | Reduce the number of duplicate points | bool | true
warnDegenerate | Number of warnings about degenerate edges | label | 0
This commit is contained in:
Mark Olesen
234
applications/test/surfaceIntersection/Test-surfaceIntersection.C
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234
applications/test/surfaceIntersection/Test-surfaceIntersection.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) 2017 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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Test-surfaceIntersection
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Description
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Test surface-surface intersection
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "Time.H"
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#include "triSurface.H"
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#include "triSurfaceMesh.H"
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#include "surfaceIntersection.H"
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#include "OFstream.H"
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using namespace Foam;
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autoPtr<triSurface> loadSurface
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(
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const Foam::Time& runTime,
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const fileName& surfName
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)
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{
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Info<< "Reading surface " << surfName << endl;
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const fileName fallback =
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runTime.constantPath()/triSurfaceMesh::meshSubDir/surfName;
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autoPtr<triSurface> surfPtr;
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if (isFile(surfName))
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{
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surfPtr.set(new triSurface(surfName));
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}
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else if (isFile(fallback))
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{
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surfPtr.set(new triSurface(fallback));
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}
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else
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{
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FatalErrorInFunction
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<< "No such file:" << surfName << exit(FatalError);
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}
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return surfPtr;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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argList::addNote
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(
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"Intersection of two surfaces. Writes obj file"
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);
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argList::addBoolOption
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(
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"debug2",
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"set surfaceIntersection debug=2"
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);
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argList::addBoolOption
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(
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"debug4",
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"set surfaceIntersection debug=4"
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);
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argList::addBoolOption
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(
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"print",
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"print information about cuts, etc"
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);
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argList::addBoolOption
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(
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"mergeEdges",
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"merge duplicate edges"
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);
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argList::addOption
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(
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"mergePoints",
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"mergeTol",
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"merge points (and edges) using the specified tolerance"
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);
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#include "addDictOption.H"
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argList::addNote
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(
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"test intersect of two surfaces. Writes obj file"
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);
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argList::noParallel();
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argList::noFunctionObjects();
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argList::validArgs.append("surface file");
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argList::validArgs.append("surface file");
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#include "setRootCase.H"
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#include "createTime.H"
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const word outputFile(args.executable() + ".obj");
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const fileName surf1Name(args[1]);
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triSurface surf1 = loadSurface(runTime, surf1Name)();
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Info<< surf1Name << " statistics:" << endl;
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surf1.writeStats(Info);
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Info<< endl;
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const fileName surf2Name(args[2]);
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triSurface surf2 = loadSurface(runTime, surf2Name)();
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Info<< surf2Name << " statistics:" << endl;
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surf2.writeStats(Info);
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Info<< endl;
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if (args.optionFound("debug2"))
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{
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surfaceIntersection::debug |= 2;
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}
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if (args.optionFound("debug4"))
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{
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surfaceIntersection::debug |= 4;
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}
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const bool optPrint = args.optionFound("print");
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dictionary intersectOptions;
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if (args.optionFound("dict"))
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{
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intersectOptions = IOdictionary
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(
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IOobject
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(
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args["dict"],
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runTime,
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IOobject::MUST_READ_IF_MODIFIED,
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IOobject::NO_WRITE
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)
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);
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}
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intersectOptions.writeEntry("intersectOptions", Info);
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Info<< endl;
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triSurfaceSearch query1(surf1);
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triSurfaceSearch query2(surf2);
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surfaceIntersection cuts(query1, query2, intersectOptions);
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Info<<"intersection "
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<< cuts.cutPoints().size() << " points "
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<< cuts.cutEdges().size() << " edges" << nl;
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if (optPrint)
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{
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Info<< "surf1-cuts: " << cuts.surf1EdgeCuts() << nl
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<< "surf2-cuts: " << cuts.surf2EdgeCuts() << nl
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<< "face-pairs: " << cuts.facePairToEdge() << nl
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<< "edges: " << cuts.cutEdges() << nl;
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}
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word mergeOp;
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if (args.optionFound("mergePoints"))
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{
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cuts.mergePoints(args.optionRead<scalar>("mergePoints"));
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mergeOp = "mergePoints";
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}
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else if (args.optionFound("mergeEdges"))
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{
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cuts.mergeEdges();
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mergeOp = "mergeEdges";
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}
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if (!mergeOp.empty())
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{
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Info<< mergeOp << ": "
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<< cuts.cutPoints().size() << " points "
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<< cuts.cutEdges().size() << " edges" << nl;
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if (optPrint)
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{
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Info<< "surf1-cuts: " << cuts.surf1EdgeCuts() << nl
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<< "surf2-cuts: " << cuts.surf2EdgeCuts() << nl
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<< "face-pairs: " << cuts.facePairToEdge() << nl
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<< "edges: " << cuts.cutEdges() << nl;
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}
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}
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const pointField& points = cuts.cutPoints();
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const edgeList& edges = cuts.cutEdges();
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if (points.size() || edges.size())
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{
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Info<<"write to " << outputFile << nl;
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OFstream os(outputFile);
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forAll(points, pointi)
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{
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const point& pt = points[pointi];
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os << "v " << pt.x() << ' ' << pt.y() << ' ' << pt.z() << nl;
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}
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forAll(edges, edgei)
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{
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const edge& e = edges[edgei];
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os << "l " << e.start()+1 << ' ' << e.end()+1 << nl;
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}
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}
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Info<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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