253 lines
6.8 KiB
C
253 lines
6.8 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright held by original author
|
|
\\/ 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 2 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, write to the Free Software Foundation,
|
|
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
Description
|
|
Plot3d mesh (ascii/formatted format) converter.
|
|
|
|
Work in progress! Handles ascii multiblock (and optionally singleBlock)
|
|
format.
|
|
By default expects blanking. Use -noBlank if none.
|
|
Use -2D @a thickness if 2D.
|
|
|
|
Niklas Nordin has experienced a problem with lefthandedness of the blocks.
|
|
The code should detect this automatically - see hexBlock::readPoints but
|
|
if this goes wrong just set the blockHandedness_ variable to 'right'
|
|
always.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "argList.H"
|
|
#include "Time.H"
|
|
#include "IFstream.H"
|
|
#include "hexBlock.H"
|
|
#include "polyMesh.H"
|
|
#include "wallPolyPatch.H"
|
|
#include "symmetryPolyPatch.H"
|
|
#include "preservePatchTypes.H"
|
|
#include "cellShape.H"
|
|
#include "cellModeller.H"
|
|
#include "mergePoints.H"
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::noParallel();
|
|
argList::validArgs.append("PLOT3D geom file");
|
|
argList::validOptions.insert("scale", "scale factor");
|
|
argList::validOptions.insert("noBlank", "");
|
|
argList::validOptions.insert("singleBlock", "");
|
|
argList::validOptions.insert("2D", "thickness");
|
|
|
|
argList args(argc, argv);
|
|
|
|
if (!args.check())
|
|
{
|
|
FatalError.exit();
|
|
}
|
|
|
|
scalar scaleFactor = 1.0;
|
|
args.optionReadIfPresent("scale", scaleFactor);
|
|
|
|
bool readBlank = !args.optionFound("noBlank");
|
|
bool singleBlock = args.optionFound("singleBlock");
|
|
scalar twoDThickness = -1;
|
|
if (args.optionReadIfPresent("2D", twoDThickness))
|
|
{
|
|
Info<< "Reading 2D case by extruding points by " << twoDThickness
|
|
<< " in z direction." << nl << endl;
|
|
}
|
|
|
|
|
|
# include "createTime.H"
|
|
|
|
IFstream plot3dFile(args.additionalArgs()[0]);
|
|
|
|
// Read the plot3d information using a fixed format reader.
|
|
// Comments in the file are in C++ style, so the stream parser will remove
|
|
// them with no intervention
|
|
label nblock;
|
|
|
|
if (singleBlock)
|
|
{
|
|
nblock = 1;
|
|
}
|
|
else
|
|
{
|
|
plot3dFile >> nblock;
|
|
}
|
|
|
|
Info<< "Reading " << nblock << " blocks" << endl;
|
|
|
|
PtrList<hexBlock> blocks(nblock);
|
|
|
|
{
|
|
label nx, ny, nz;
|
|
|
|
forAll (blocks, blockI)
|
|
{
|
|
if (twoDThickness > 0)
|
|
{
|
|
// Fake second set of points (done in readPoints below)
|
|
plot3dFile >> nx >> ny;
|
|
nz = 2;
|
|
}
|
|
else
|
|
{
|
|
plot3dFile >> nx >> ny >> nz;
|
|
}
|
|
|
|
Info<< "block " << blockI << " nx:" << nx
|
|
<< " ny:" << ny << " nz:" << nz << endl;
|
|
|
|
blocks.set(blockI, new hexBlock(nx, ny, nz));
|
|
}
|
|
}
|
|
|
|
Info<< "Reading block points" << endl;
|
|
label sumPoints(0);
|
|
label nMeshCells(0);
|
|
|
|
forAll (blocks, blockI)
|
|
{
|
|
Info<< "block " << blockI << ":" << nl;
|
|
blocks[blockI].readPoints(readBlank, twoDThickness, plot3dFile);
|
|
sumPoints += blocks[blockI].nBlockPoints();
|
|
nMeshCells += blocks[blockI].nBlockCells();
|
|
Info<< nl;
|
|
}
|
|
|
|
pointField points(sumPoints);
|
|
labelList blockOffsets(blocks.size());
|
|
sumPoints = 0;
|
|
forAll (blocks, blockI)
|
|
{
|
|
const pointField& blockPoints = blocks[blockI].points();
|
|
blockOffsets[blockI] = sumPoints;
|
|
forAll (blockPoints, i)
|
|
{
|
|
points[sumPoints++] = blockPoints[i];
|
|
}
|
|
}
|
|
|
|
// From old to new master point
|
|
labelList oldToNew;
|
|
pointField newPoints;
|
|
|
|
// Merge points
|
|
mergePoints
|
|
(
|
|
points,
|
|
SMALL,
|
|
false,
|
|
oldToNew,
|
|
newPoints
|
|
);
|
|
|
|
Info<< "Merged points within " << SMALL << " distance. Merged from "
|
|
<< oldToNew.size() << " down to " << newPoints.size()
|
|
<< " points." << endl;
|
|
|
|
// Scale the points
|
|
if (scaleFactor > 1.0 + SMALL || scaleFactor < 1.0 - SMALL)
|
|
{
|
|
newPoints *= scaleFactor;
|
|
}
|
|
|
|
Info<< "Creating cells" << endl;
|
|
|
|
cellShapeList cellShapes(nMeshCells);
|
|
|
|
const cellModel& hex = *(cellModeller::lookup("hex"));
|
|
|
|
label nCreatedCells = 0;
|
|
|
|
forAll (blocks, blockI)
|
|
{
|
|
labelListList curBlockCells = blocks[blockI].blockCells();
|
|
|
|
forAll (curBlockCells, blockCellI)
|
|
{
|
|
labelList cellPoints(curBlockCells[blockCellI].size());
|
|
|
|
forAll (cellPoints, pointI)
|
|
{
|
|
cellPoints[pointI] =
|
|
oldToNew
|
|
[
|
|
curBlockCells[blockCellI][pointI]
|
|
+ blockOffsets[blockI]
|
|
];
|
|
}
|
|
|
|
// Do automatic collapse from hex.
|
|
cellShapes[nCreatedCells] = cellShape(hex, cellPoints, true);
|
|
|
|
nCreatedCells++;
|
|
}
|
|
}
|
|
|
|
Info<< "Creating boundary patches" << endl;
|
|
|
|
faceListList boundary(0);
|
|
wordList patchNames(0);
|
|
wordList patchTypes(0);
|
|
word defaultFacesName = "defaultFaces";
|
|
word defaultFacesType = wallPolyPatch::typeName;
|
|
wordList patchPhysicalTypes(0);
|
|
|
|
polyMesh pShapeMesh
|
|
(
|
|
IOobject
|
|
(
|
|
polyMesh::defaultRegion,
|
|
runTime.constant(),
|
|
runTime
|
|
),
|
|
xferMove(newPoints),
|
|
cellShapes,
|
|
boundary,
|
|
patchNames,
|
|
patchTypes,
|
|
defaultFacesName,
|
|
defaultFacesType,
|
|
patchPhysicalTypes
|
|
);
|
|
|
|
// Set the precision of the points data to 10
|
|
IOstream::defaultPrecision(10);
|
|
|
|
Info<< "Writing polyMesh" << endl;
|
|
pShapeMesh.write();
|
|
|
|
Info<< "End\n" << endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|