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Creation of OpenFOAM-dev repository 15/04/2008
This commit is contained in:
OpenFOAM-admin
@ -0,0 +1,279 @@
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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) 1991-2007 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 the
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Free Software Foundation; either version 2 of the License, or (at your
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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, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Application
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surfaceFeatureExtract
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Description
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Extracts and writes surface features to file
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\*---------------------------------------------------------------------------*/
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#include "triangle.H"
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#include "triSurface.H"
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#include "argList.H"
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#include "surfaceFeatures.H"
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#include "treeBoundBox.H"
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#include "meshTools.H"
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#include "OFstream.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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void dumpBox(const treeBoundBox& bb, const fileName& fName)
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{
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OFstream str(fName);
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Pout<< "Dumping bounding box " << bb << " as lines to obj file "
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<< str.name() << endl;
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pointField boxPoints(bb.points());
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edgeList boxEdges(bb.edges());
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forAll(boxPoints, i)
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{
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meshTools::writeOBJ(str, boxPoints[i]);
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}
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forAll(boxEdges, i)
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{
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const edge& e = boxEdges[i];
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str<< "l " << e[0]+1 << ' ' << e[1]+1 << nl;
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}
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}
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// Deletes all edges inside/outside bounding box from set.
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void deleteBox
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(
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const triSurface& surf,
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const treeBoundBox& bb,
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const bool removeInside,
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List<surfaceFeatures::edgeStatus>& edgeStat
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)
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{
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forAll(edgeStat, edgeI)
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{
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const point eMid = surf.edges()[edgeI].centre(surf.localPoints());
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if
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(
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(removeInside && bb.contains(eMid))
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|| (!removeInside && !bb.contains(eMid))
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)
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{
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edgeStat[edgeI] = surfaceFeatures::NONE;
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}
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}
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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::validArgs.append("output set");
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argList::validOptions.insert("includedAngle", "included angle [0..180]");
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argList::validOptions.insert("set", "input feature set");
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argList::validOptions.insert("minLen", "cumulative length of feature");
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argList::validOptions.insert("minElem", "number of edges in feature");
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argList::validOptions.insert("subsetBox", "((x0 y0 z0)(x1 y1 z1))");
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argList::validOptions.insert("deleteBox", "((x0 y0 z0)(x1 y1 z1))");
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argList args(argc, argv);
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Pout<< "Feature line extraction is only valid on closed manifold surfaces."
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<< endl;
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fileName surfFileName(args.additionalArgs()[0]);
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fileName outFileName(args.additionalArgs()[1]);
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Pout<< "Surface : " << surfFileName << nl
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<< "Output feature set : " << outFileName << nl
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<< endl;
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// Read
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// ~~~~
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triSurface surf(surfFileName);
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Pout<< "Statistics:" << endl;
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surf.writeStats(Pout);
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Pout<< endl;
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// Either construct features from surface&featureangle or read set.
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// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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surfaceFeatures set(surf);
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if (args.options().found("set"))
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{
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fileName setName(args.options()["set"]);
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Pout<< "Reading existing feature set from file " << setName << endl;
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set = surfaceFeatures(surf, setName);
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}
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else if (args.options().found("includedAngle"))
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{
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scalar includedAngle
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(
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readScalar(IStringStream(args.options()["includedAngle"])())
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);
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Pout<< "Constructing feature set from included angle " << includedAngle
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<< endl;
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set = surfaceFeatures(surf, includedAngle);
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Pout<< endl << "Writing initial features" << endl;
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set.write("initial.fSet");
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set.writeObj("initial");
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}
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else
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{
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FatalErrorIn(args.executable())
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<< "No initial feature set. Provide either one"
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<< " of -set (to read existing set)" << nl
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<< " or -includedAngle (to new set construct from angle)"
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<< exit(FatalError);
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}
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Pout<< nl
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<< "Initial feature set:" << nl
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<< " feature points : " << set.featurePoints().size() << nl
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<< " feature edges : " << set.featureEdges().size() << nl
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<< " of which" << nl
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<< " region edges : " << set.nRegionEdges() << nl
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<< " external edges : " << set.nExternalEdges() << nl
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<< " internal edges : " << set.nInternalEdges() << nl
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<< endl;
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// Trim set
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// ~~~~~~~~
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scalar minLen = -GREAT;
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if (args.options().found("minLen"))
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{
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minLen = readScalar(IStringStream(args.options()["minLen"])());
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Pout<< "Removing features of length < " << minLen << endl;
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}
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label minElem = 0;
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if (args.options().found("minElem"))
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{
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minElem = readLabel(IStringStream(args.options()["minElem"])());
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Pout<< "Removing features with number of edges < " << minElem << endl;
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}
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// Trim away small groups of features
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if (minLen > 0 || minLen > 0)
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{
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set.trimFeatures(minLen, minElem);
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Pout<< endl << "Removed small features" << endl;
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}
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// Subset
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// ~~~~~~
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// Convert to marked edges, points
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List<surfaceFeatures::edgeStatus> edgeStat(set.toStatus());
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if (args.options().found("subsetBox"))
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{
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treeBoundBox bb(IStringStream(args.options()["subsetBox"])());
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Pout<< "Removing all edges outside bb " << bb << endl;
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dumpBox(bb, "subsetBox.obj");
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deleteBox
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(
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surf,
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bb,
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false,
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edgeStat
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);
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}
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else if (args.options().found("deleteBox"))
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{
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treeBoundBox bb(IStringStream(args.options()["deleteBox"])());
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Pout<< "Removing all edges inside bb " << bb << endl;
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dumpBox(bb, "deleteBox.obj");
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deleteBox
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(
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surf,
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bb,
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true,
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edgeStat
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);
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}
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surfaceFeatures newSet(surf);
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newSet.setFromStatus(edgeStat);
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Pout<< endl << "Writing trimmed features to " << outFileName << endl;
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newSet.write(outFileName);
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Pout<< endl << "Writing edge objs." << endl;
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newSet.writeObj("final");
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Pout<< nl
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<< "Final feature set:" << nl
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<< " feature points : " << newSet.featurePoints().size() << nl
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<< " feature edges : " << newSet.featureEdges().size() << nl
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<< " of which" << nl
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<< " region edges : " << newSet.nRegionEdges() << nl
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<< " external edges : " << newSet.nExternalEdges() << nl
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<< " internal edges : " << newSet.nInternalEdges() << nl
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<< endl;
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Pout<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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