File size: 6,659 Bytes
5a600cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | /*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2019 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "OFFsurfaceFormat.H"
#include "clock.H"
#include "IFstream.H"
#include "IStringStream.H"
#include "Ostream.H"
#include "OFstream.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
template<class Face>
Foam::fileFormats::OFFsurfaceFormat<Face>::OFFsurfaceFormat
(
const fileName& filename
)
{
read(filename);
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
template<class Face>
bool Foam::fileFormats::OFFsurfaceFormat<Face>::read
(
const fileName& filename
)
{
const bool mustTriangulate = this->isTri();
this->clear();
IFstream is(filename);
if (!is.good())
{
FatalErrorInFunction
<< "Cannot read file " << filename
<< exit(FatalError);
}
// Read header
string hdr = this->getLineNoComment(is);
if (hdr != "OFF")
{
FatalErrorInFunction
<< "OFF file " << filename << " does not start with 'OFF'"
<< exit(FatalError);
}
// get dimensions
label nPoints, nElems, nEdges;
string line = this->getLineNoComment(is);
{
IStringStream lineStream(line);
lineStream >> nPoints >> nElems >> nEdges;
}
// Read points
pointField pointLst(nPoints);
forAll(pointLst, pointi)
{
scalar x, y, z;
line = this->getLineNoComment(is);
{
IStringStream lineStream(line);
lineStream >> x >> y >> z;
}
pointLst[pointi] = point(x, y, z);
}
// Read faces - ignore optional zone information
// use a DynamicList for possible on-the-fly triangulation
DynamicList<Face> dynFaces(nElems);
for (label facei = 0; facei < nElems; ++facei)
{
line = this->getLineNoComment(is);
{
IStringStream lineStream(line);
label nVerts;
lineStream >> nVerts;
List<label> verts(nVerts);
forAll(verts, vertI)
{
lineStream >> verts[vertI];
}
labelUList& f = static_cast<labelUList&>(verts);
if (mustTriangulate && f.size() > 3)
{
// simple face triangulation about f[0]
// cannot use face::triangulation (points may be incomplete)
for (label fp1 = 1; fp1 < f.size() - 1; fp1++)
{
label fp2 = f.fcIndex(fp1);
dynFaces.append(triFace(f[0], f[fp1], f[fp2]));
}
}
else
{
dynFaces.append(Face(f));
}
}
}
// transfer to normal lists, no zone information
this->reset(move(pointLst), move(dynFaces), NullObjectMove<surfZoneList>());
return true;
}
template<class Face>
void Foam::fileFormats::OFFsurfaceFormat<Face>::write
(
const fileName& filename,
const MeshedSurfaceProxy<Face>& surf
)
{
const pointField& pointLst = surf.points();
const List<Face>& faceLst = surf.faces();
const List<label>& faceMap = surf.faceMap();
const List<surfZone>& zoneLst = surf.surfZones();
OFstream os(filename);
if (!os.good())
{
FatalErrorInFunction
<< "Cannot open file for writing " << filename
<< exit(FatalError);
}
// Write header
os << "OFF" << endl
<< "# Geomview OFF file written " << clock::dateTime().c_str() << nl
<< nl
<< "# points : " << pointLst.size() << nl
<< "# faces : " << faceLst.size() << nl
<< "# zones : " << zoneLst.size() << nl;
// Print zone names as comment
forAll(zoneLst, zoneI)
{
os << "# " << zoneI << " " << zoneLst[zoneI].name()
<< " (nFaces: " << zoneLst[zoneI].size() << ")" << nl;
}
os << nl
<< "# nPoints nFaces nEdges" << nl
<< pointLst.size() << ' ' << faceLst.size() << ' ' << 0 << nl
<< nl
<< "# <points count=\"" << pointLst.size() << "\">" << endl;
// Write vertex coords
forAll(pointLst, ptI)
{
os << pointLst[ptI].x() << ' '
<< pointLst[ptI].y() << ' '
<< pointLst[ptI].z() << " #" << ptI << endl;
}
os << "# </points>" << nl
<< nl
<< "# <faces count=\"" << faceLst.size() << "\">" << endl;
label faceIndex = 0;
forAll(zoneLst, zoneI)
{
os << "# <zone name=\"" << zoneLst[zoneI].name() << "\">" << endl;
if (surf.useFaceMap())
{
forAll(zoneLst[zoneI], localFacei)
{
const Face& f = faceLst[faceMap[faceIndex++]];
os << f.size();
forAll(f, fp)
{
os << ' ' << f[fp];
}
// add optional zone information
os << ' ' << zoneI << endl;
}
}
else
{
forAll(zoneLst[zoneI], localFacei)
{
const Face& f = faceLst[faceIndex++];
os << f.size();
forAll(f, fp)
{
os << ' ' << f[fp];
}
// add optional zone information
os << ' ' << zoneI << endl;
}
}
os << "# </zone>" << endl;
}
os << "# </faces>" << endl;
}
// ************************************************************************* //
|