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Creation of OpenFOAM-dev repository 15/04/2008
This commit is contained in:
OpenFOAM-admin
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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 | Version: 1.0 |
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| \\ / A nd | Web: http://www.openfoam.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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// objToVTK tool definition
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description "Read obj line (not surface!) file and convert into vtk";
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objToVTKDict
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{
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type dictionary;
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description "objToVTK control dictionary";
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dictionaryPath "system";
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entries
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{
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arguments
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{
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type compound;
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optional 1;
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entries
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{
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include "$FOAMX_CONFIG/entries/arguments/inputFile.cfg";
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include "$FOAMX_CONFIG/entries/arguments/outputFile.cfg";
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}
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}
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}
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}
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// ************************************************************************* //
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objToVTK.C
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EXE = $(FOAM_APPBIN)/objToVTK
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/*
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EXE_INC = \
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-I$(LIB_SRC)/triSurface/lnInclude
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EXE_LIBS = \
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-lmeshTools \
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-ltriSurface
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*/
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275
applications/utilities/mesh/manipulation/objToVTK/objToVTK.C
Normal file
275
applications/utilities/mesh/manipulation/objToVTK/objToVTK.C
Normal file
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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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Description
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Read obj line (not surface!) file and convert into vtk.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "OFstream.H"
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#include <fstream>
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#include <sstream>
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#include "IStringStream.H"
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#include "point.H"
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#include "DynamicList.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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string getLine(std::ifstream& is)
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{
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string line;
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do
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{
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std::getline(is, line);
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}
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while((line.size() > 0) && (line[0] == '#'));
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return line;
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}
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// Read space-separated vertices (with optional '/' arguments)
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labelList parseVertices(const string& line)
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{
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DynamicList<label> verts;
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// Assume 'l' is followed by space.
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label endNum = 1;
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do
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{
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label startNum = line.find_first_not_of(' ', endNum);
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if (startNum == label(string::npos))
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{
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break;
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}
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endNum = line.find(' ', startNum);
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string vertexSpec;
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if (endNum != label(string::npos))
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{
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vertexSpec = line.substr(startNum, endNum-startNum);
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}
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else
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{
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vertexSpec = line.substr(startNum, line.size() - startNum);
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}
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label slashPos = vertexSpec.find('/');
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label vertI = 0;
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if (slashPos != label(string::npos))
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{
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IStringStream intStream(vertexSpec.substr(0, slashPos));
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intStream >> vertI;
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}
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else
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{
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IStringStream intStream(vertexSpec);
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intStream >> vertI;
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}
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verts.append(vertI - 1);
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}
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while (true);
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return verts.shrink();
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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("OBJ file");
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argList::validArgs.append("output VTK file");
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argList::argList args(argc, argv);
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fileName objName(args.additionalArgs()[0]);
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fileName outName(args.additionalArgs()[1]);
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std::ifstream OBJfile(objName.c_str());
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if (!OBJfile.good())
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{
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FatalErrorIn(args.executable())
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<< "Cannot read file " << objName << exit(FatalError);
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}
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// Points and lines
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DynamicList<point> points;
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DynamicList<labelList> polyLines;
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DynamicList<labelList> polygons;
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bool hasWarned = false;
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label lineNo = 0;
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while (OBJfile.good())
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{
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string line = getLine(OBJfile);
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lineNo++;
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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 == "v")
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{
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scalar x, y, z;
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lineStream >> x >> y >> z;
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points.append(point(x, y, z));
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}
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else if (cmd == "l")
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{
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polyLines.append(parseVertices(line));
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}
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else if (cmd == "f")
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{
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polygons.append(parseVertices(line));
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}
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else if (cmd != "")
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{
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if (!hasWarned)
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{
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hasWarned = true;
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WarningIn(args.executable())
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<< "Unrecognized OBJ command " << cmd << nl
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<< "In line " << lineStream.str()
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<< " at linenumber " << lineNo << nl
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<< "Only recognized commands are 'v' and 'l'.\n"
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<< "If this is a surface command use surfaceConvert instead"
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<< " to convert to a file format that can be read by VTK"
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<< endl;
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}
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}
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}
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//
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// Write as vtk 'polydata' file
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//
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OFstream outFile(outName);
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outFile
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<< "# vtk DataFile Version 2.0\n"
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<< objName << nl
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<< "ASCII\n"
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<< "DATASET POLYDATA\n"
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<< "POINTS " << points.size() << " float\n";
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forAll(points, i)
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{
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const point& pt = points[i];
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outFile << pt.x() << ' ' << pt.y() << ' ' << pt.z() << nl;
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}
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label nItems = 0;
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forAll(polyLines, polyI)
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{
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nItems += polyLines[polyI].size() + 1;
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}
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outFile
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<< "LINES " << polyLines.size() << ' ' << nItems << nl;
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forAll(polyLines, polyI)
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{
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const labelList& line = polyLines[polyI];
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outFile << line.size();
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forAll(line, i)
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{
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outFile << ' ' << line[i];
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}
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outFile << nl;
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}
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nItems = 0;
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forAll(polygons, polyI)
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{
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nItems += polygons[polyI].size() + 1;
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}
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outFile
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<< "POLYGONS " << polygons.size() << ' ' << nItems << nl;
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forAll(polygons, polyI)
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{
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const labelList& line = polygons[polyI];
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outFile << line.size();
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forAll(line, i)
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{
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outFile << ' ' << line[i];
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}
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outFile << nl;
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}
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outFile
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<< "POINT_DATA " << points.size() << nl
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<< "SCALARS pointID float 1\n"
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<< "LOOKUP_TABLE default\n";
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forAll(points, i)
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{
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outFile << i;
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if ((i % 10) == 1)
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{
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outFile << nl;
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}
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else
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{
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outFile << ' ';
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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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