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Creation of OpenFOAM-dev repository 15/04/2008
This commit is contained in:
OpenFOAM-admin
@ -0,0 +1,294 @@
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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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surfaceFeatureConvert
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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 "featureEdgeMesh.H"
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#include "argList.H"
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#include "Time.H"
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#include "IFstream.H"
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#include "IStringStream.H"
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#include "OFstream.H"
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#include "Map.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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void readNASEdges
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(
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const fileName& inFileName,
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pointField& allPoints,
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edgeList& allEdges
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)
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{
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IFstream OBJfile(inFileName);
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if (!OBJfile.good())
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{
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FatalErrorIn("readNASEdges")
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<< "Cannot read file " << inFileName
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<< exit(FatalError);
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}
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// coordinates of point
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DynamicList<point> points;
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// Nastran index of point
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DynamicList<label> pointIndices;
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// beams
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DynamicList<edge> edges;
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DynamicList<label> edgeIndices;
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while (OBJfile.good())
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{
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string line;
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OBJfile.getLine(line);
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if (line.size() > 0 && line[0] == '$')
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{
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// Skip comment
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continue;
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}
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// Check if character 72 is continuation
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if (line.size() > 72 && line[72] == '+')
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{
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line = line.substr(0, 72);
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while (true)
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{
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string buf;
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OBJfile.getLine(buf);
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if (buf.size() > 72 && buf[72]=='+')
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{
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line += buf.substr(8, 64);
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}
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else
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{
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line += buf.substr(8, buf.size()-8);
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break;
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}
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}
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}
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// Read first word
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IStringStream lineStream(line);
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word cmd;
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lineStream >> cmd;
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if (cmd == "GRID")
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{
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label index;
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lineStream >> index;
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pointIndices.append(index);
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scalar x = readScalar(IStringStream(line.substr(24, 8))());
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scalar y = readScalar(IStringStream(line.substr(32, 8))());
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scalar z = readScalar(IStringStream(line.substr(40, 8))());
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points.append(point(x, y, z));
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}
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else if (cmd == "CBEAM")
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{
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// Read shell type since gives patchnames.
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label index, group, v0, v1;
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lineStream >> index >> group >> v0 >> v1;
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edgeIndices.append(index);
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edges.append(edge(v0, v1));
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}
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}
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points.shrink();
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pointIndices.shrink();
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edges.shrink();
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edgeIndices.shrink();
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Pout<< "Read from " << inFileName
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<< " edges:" << edges.size() << " points:" << points.size()
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<< endl;
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{
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// Build inverse mapping (index to point)
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Map<label> indexToPoint(2*pointIndices.size());
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forAll(pointIndices, i)
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{
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indexToPoint.insert(pointIndices[i], i);
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}
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// Relabel edges
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forAll(edges, i)
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{
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edge& e = edges[i];
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e[0] = indexToPoint[e[0]];
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e[1] = indexToPoint[e[1]];
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}
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}
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allPoints.transfer(points);
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allEdges.transfer(edges);
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}
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void write
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(
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const Time& runTime,
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const fileName& inFileName,
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const fileName& outFileName,
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const edgeMesh& eMesh
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)
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{
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if (outFileName.ext() == "eMesh")
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{
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featureEdgeMesh fem
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(
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IOobject
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(
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outFileName, // name
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runTime.constant(), // instance
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runTime, // registry
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IOobject::NO_READ,
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IOobject::AUTO_WRITE,
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false
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),
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eMesh.points(),
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eMesh.edges()
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);
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Pout<< "Writing feature edge mesh to " << fem.objectPath()
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<< endl;
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fem.write();
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}
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else if (outFileName.ext() == "vtk")
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{
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OFstream str(outFileName);
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str << "# vtk DataFile Version 2.0" << nl
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<< "featureEdgeMesh " << inFileName << nl
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<< "ASCII" << nl
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<< "DATASET POLYDATA" << nl;
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str << "POINTS " << eMesh.points().size() << " float" << nl;
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forAll(eMesh.points(), pointI)
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{
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const point& pt = eMesh.points()[pointI];
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str << pt.x() << ' ' << pt.y() << ' ' << pt.z() << nl;
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}
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str << "LINES " << eMesh.edges().size() << ' '
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<< 3*eMesh.edges().size() << nl;
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forAll(eMesh.edges(), edgeI)
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{
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const edge& e = eMesh.edges()[edgeI];
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str << "2 " << e[0] << ' ' << e[1] << nl;
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}
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}
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else
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{
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FatalErrorIn("write")
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<< "Supported output formats: .eMesh, .vtk"
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<< exit(FatalError);
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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.append("surface");
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argList::validArgs.append("output name");
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# include "setRootCase.H"
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# include "createTime.H"
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const fileName inFileName(args.additionalArgs()[0]);
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const word outFileName(args.additionalArgs()[1]);
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Pout<< "Input features file : " << inFileName << nl
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<< "Output features file : " << outFileName << nl
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<< endl;
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// Read
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// ~~~~
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if (inFileName.ext() == "nas")
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{
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pointField points;
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edgeList edges;
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readNASEdges(inFileName, points, edges);
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edgeMesh eMesh(points, edges);
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write(runTime, inFileName, outFileName, eMesh);
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}
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else if (inFileName.ext() == "eMesh")
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{
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featureEdgeMesh fem
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(
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IOobject
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(
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inFileName, // name
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runTime.constant(), // instance
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runTime, // registry
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IOobject::MUST_READ,
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IOobject::AUTO_WRITE,
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false
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)
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);
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Pout<< "Read from " << inFileName
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<< " edges:" << fem.edges().size()
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<< " points:" << fem.points().size()
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<< endl;
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write(runTime, inFileName, outFileName, fem);
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}
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else
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{
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FatalErrorIn(args.executable())
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<< "Can only handle NASTRAN data formats (.nas extension)."
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<< exit(FatalError);
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}
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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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