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foam-extend4.1-coherent-io/applications/utilities/mesh/conversion/cfx4ToFoam/cfx4ToFoam.C
2018-06-01 18:11:37 +02:00

759 lines
22 KiB
C++

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | foam-extend: Open Source CFD
\\ / O peration | Version: 4.1
\\ / A nd | Web: http://www.foam-extend.org
\\/ M anipulation | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
This file is part of foam-extend.
foam-extend 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.
foam-extend 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
Application
cfx4ToFoam
Description
Converts a CFX 4 mesh to FOAM format
\*---------------------------------------------------------------------------*/
#include "argList.H"
#include "objectRegistry.H"
#include "foamTime.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"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Main program:
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.append("CFX geom file");
argList::validOptions.insert("scale", "scale factor");
argList args(argc, argv);
if (!args.check())
{
FatalError.exit();
}
scalar scaleFactor = 1.0;
args.optionReadIfPresent("scale", scaleFactor);
# include "createTime.H"
IFstream cfxFile(args.additionalArgs()[0]);
// Read the cfx 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, npatch, nglue, nelem, npoint;
cfxFile >> nblock >> npatch >> nglue >> nelem >> npoint;
Info<< "Reading blocks" << endl;
PtrList<hexBlock> blocks(nblock);
{
word blockName;
label nx, ny, nz;
forAll (blocks, blockI)
{
cfxFile >> blockName;
cfxFile >> nx >> ny >> nz;
blocks.set(blockI, new hexBlock(nx, ny, nz));
}
}
Info<< "Reading patch definitions" << endl;
wordList cfxPatchTypes(npatch);
wordList cfxPatchNames(npatch);
labelList patchMasterBlocks(npatch);
labelList patchDirections(npatch);
labelListList patchRanges(npatch);
{
label no, blkNo, patchLabel;
forAll (cfxPatchTypes, patchI)
{
// Grab patch type and name
cfxFile >> cfxPatchTypes[patchI] >> cfxPatchNames[patchI] >> no;
// Grab patch range
patchRanges[patchI].setSize(6);
labelList& curRange = patchRanges[patchI];
forAll (curRange, rI)
{
cfxFile >> curRange[rI];
}
// Grab patch direction and master block ID
// Note: direc is the direction, from the cfx manual
// 0 = solid (3-D patch),
// 1 = high i, 2 = high j, 3 = high k
// 4 = low i, 5 = low j, 6 = low k
cfxFile >> patchDirections[patchI] >> blkNo >> patchLabel;
patchMasterBlocks[patchI] = blkNo - 1;
}
}
Info<< "Reading block glueing information" << endl;
labelList glueMasterPatches(nglue, -1);
labelList glueSlavePatches(nglue, -1);
{
label masterPatch, slavePatch;
label dirIndex1, dirIndex2, dirIndex3, joinNumber;
for (label glueI = 0; glueI < nglue; glueI++)
{
cfxFile >> masterPatch >> slavePatch;
cfxFile >> dirIndex1 >> dirIndex2 >> dirIndex3 >> joinNumber;
glueMasterPatches[glueI] = masterPatch - 1;
glueSlavePatches[glueI] = slavePatch - 1;
}
}
Info<< "Reading block points" << endl;
forAll (blocks, blockI)
{
Info<< "block " << blockI << " is a ";
blocks[blockI].readPoints(cfxFile);
}
Info<< "Calculating block offsets" << endl;
labelList blockOffsets(nblock, -1);
blockOffsets[0] = 0;
label nMeshPoints = blocks[0].nBlockPoints();
label nMeshCells = blocks[0].nBlockCells();
for (label blockI = 1; blockI < nblock; blockI++)
{
nMeshPoints += blocks[blockI].nBlockPoints();
nMeshCells += blocks[blockI].nBlockCells();
blockOffsets[blockI] =
blockOffsets[blockI - 1]
+ blocks[blockI - 1].nBlockPoints();
}
Info<< "Assembling patches" << endl;
faceListList rawPatches(npatch);
forAll (rawPatches, patchI)
{
const word& patchType = cfxPatchTypes[patchI];
// reject volume patches
if
(
patchType == "POROUS" || patchType == "SOLID"
|| patchType == "SOLCON" || patchType == "USER3D"
)
{
patchMasterBlocks[patchI] = -1;
rawPatches[patchI].setSize(0);
}
else
{
// read and create a 2-D patch
rawPatches[patchI] =
blocks[patchMasterBlocks[patchI]].patchFaces
(
patchDirections[patchI],
patchRanges[patchI]
);
}
}
Info<< "Merging points ";
labelList pointMergeList(nMeshPoints, -1);
// In order to ensure robust merging, it is necessary to traverse
// the patch glueing list until the pointMergeList stops changing.
//
// For efficiency, create merge pairs in the first pass
labelListListList glueMergePairs(glueMasterPatches.size());
forAll (glueMasterPatches, glueI)
{
const label masterPatch = glueMasterPatches[glueI];
const label slavePatch = glueSlavePatches[glueI];
const label blockPlabel = patchMasterBlocks[masterPatch];
const label blockNlabel = patchMasterBlocks[slavePatch];
const pointField& blockPpoints = blocks[blockPlabel].points();
const pointField& blockNpoints = blocks[blockNlabel].points();
const faceList& blockPFaces = rawPatches[masterPatch];
const faceList& blockNFaces = rawPatches[slavePatch];
labelListList& curPairs = glueMergePairs[glueI];
curPairs.setSize(blockPFaces.size());
if (blockPFaces.size() != blockNFaces.size())
{
FatalErrorIn(args.executable())
<< "Inconsistent number of faces for glue pair "
<< glueI << " between blocks " << blockPlabel + 1
<< " and " << blockNlabel + 1
<< abort(FatalError);
}
// Calculate sqr of the merge tolerance as 1/10th of the min
// sqr point to point distance on the block face. This is an
// N^2 algorithm, sorry but I cannot quickly come up with
// something better.
scalar sqrMergeTol = GREAT;
forAll (blockPFaces, blockPFaceLabel)
{
const labelList& blockPFacePoints =
blockPFaces[blockPFaceLabel];
forAll (blockPFacePoints, blockPFacePointI)
{
forAll (blockPFacePoints, blockPFacePointI2)
{
if (blockPFacePointI != blockPFacePointI2)
{
sqrMergeTol =
min
(
sqrMergeTol,
magSqr
(
blockPpoints
[blockPFacePoints[blockPFacePointI]]
- blockPpoints
[blockPFacePoints[blockPFacePointI2]]
)
);
}
}
}
}
sqrMergeTol /= 10.0;
register bool found = false;
// N-squared point search over all points of all faces of
// master block over all point of all faces of slave block
forAll (blockPFaces, blockPFaceLabel)
{
const labelList& blockPFacePoints =
blockPFaces[blockPFaceLabel];
labelList& cp = curPairs[blockPFaceLabel];
cp.setSize(blockPFacePoints.size());
forAll (blockPFacePoints, blockPFacePointI)
{
found = false;
forAll (blockNFaces, blockNFaceLabel)
{
const labelList& blockNFacePoints =
blockNFaces[blockNFaceLabel];
forAll (blockNFacePoints, blockNFacePointI)
{
if
(
magSqr
(
blockPpoints
[blockPFacePoints[blockPFacePointI]]
- blockNpoints
[blockNFacePoints[blockNFacePointI]]
)
< sqrMergeTol
)
{
// Found a new pair
found = true;
cp[blockPFacePointI] =
blockNFacePoints[blockNFacePointI];
label PpointLabel =
blockPFacePoints[blockPFacePointI]
+ blockOffsets[blockPlabel];
label NpointLabel =
blockNFacePoints[blockNFacePointI]
+ blockOffsets[blockNlabel];
label minPN = min(PpointLabel, NpointLabel);
if (pointMergeList[PpointLabel] != -1)
{
minPN = min(minPN, pointMergeList[PpointLabel]);
}
if (pointMergeList[NpointLabel] != -1)
{
minPN = min(minPN, pointMergeList[NpointLabel]);
}
pointMergeList[PpointLabel]
= pointMergeList[NpointLabel]
= minPN;
break;
}
}
if (found) break;
}
}
}
}
register bool changedPointMerge = false;
label nPasses = 0;
do
{
changedPointMerge = false;
nPasses++;
forAll (glueMasterPatches, glueI)
{
const label masterPatch = glueMasterPatches[glueI];
const label slavePatch = glueSlavePatches[glueI];
const label blockPlabel = patchMasterBlocks[masterPatch];
const label blockNlabel = patchMasterBlocks[slavePatch];
const faceList& blockPFaces = rawPatches[masterPatch];
const labelListList& curPairs = glueMergePairs[glueI];
forAll (blockPFaces, blockPFaceLabel)
{
const labelList& blockPFacePoints =
blockPFaces[blockPFaceLabel];
const labelList& cp = curPairs[blockPFaceLabel];
forAll (cp, blockPFacePointI)
{
label PpointLabel =
blockPFacePoints[blockPFacePointI]
+ blockOffsets[blockPlabel];
label NpointLabel =
cp[blockPFacePointI]
+ blockOffsets[blockNlabel];
if
(
pointMergeList[PpointLabel]
!= pointMergeList[NpointLabel]
)
{
changedPointMerge = true;
pointMergeList[PpointLabel]
= pointMergeList[NpointLabel]
= min
(
pointMergeList[PpointLabel],
pointMergeList[NpointLabel]
);
}
}
}
}
Info<< "." << flush;
}
while (changedPointMerge && nPasses < 8);
Info<< endl;
if (changedPointMerge == true)
{
FatalErrorIn(args.executable())
<< "Point merging failed after max number of passes."
<< abort(FatalError);
}
forAll (glueMasterPatches, glueI)
{
const label masterPatch = glueMasterPatches[glueI];
const label slavePatch = glueSlavePatches[glueI];
const label blockPlabel = patchMasterBlocks[masterPatch];
const label blockNlabel = patchMasterBlocks[slavePatch];
const faceList& blockPFaces = rawPatches[masterPatch];
const faceList& blockNFaces = rawPatches[slavePatch];
forAll (blockPFaces, blockPFaceLabel)
{
const labelList& blockPFacePoints
= blockPFaces[blockPFaceLabel];
forAll (blockPFacePoints, blockPFacePointI)
{
label PpointLabel =
blockPFacePoints[blockPFacePointI]
+ blockOffsets[blockPlabel];
if (pointMergeList[PpointLabel] == -1)
{
FatalErrorIn(args.executable())
<< "Unable to merge point " << blockPFacePointI
<< " of face " << blockPFaceLabel
<< " of block " << blockPlabel
<< abort(FatalError);
}
}
}
forAll (blockNFaces, blockNFaceLabel)
{
const labelList& blockNFacePoints
= blockNFaces[blockNFaceLabel];
forAll (blockNFacePoints, blockNFacePointI)
{
label NpointLabel =
blockNFacePoints[blockNFacePointI]
+ blockOffsets[blockNlabel];
if (pointMergeList[NpointLabel] == -1)
{
FatalErrorIn(args.executable())
<< "Unable to merge point " << blockNFacePointI
<< " of face " << blockNFaceLabel
<< " of block " << blockNlabel
<< abort(FatalError);
}
}
}
}
// sort merge list to return new point label (in new shorter list)
// given old point label
label nNewPoints = 0;
forAll (pointMergeList, pointLabel)
{
if (pointMergeList[pointLabel] > pointLabel)
{
FatalErrorIn(args.executable())
<< "ouch" << abort(FatalError);
}
if
(
(pointMergeList[pointLabel] == -1)
|| pointMergeList[pointLabel] == pointLabel
)
{
pointMergeList[pointLabel] = nNewPoints;
nNewPoints++;
}
else
{
pointMergeList[pointLabel] =
pointMergeList[pointMergeList[pointLabel]];
}
}
nMeshPoints = nNewPoints;
Info<< "Creating points" << endl;
pointField points(nMeshPoints);
forAll (blocks, blockI)
{
const pointField& blockPoints = blocks[blockI].points();
forAll (blockPoints, blockPointLabel)
{
points
[
pointMergeList
[
blockPointLabel
+ blockOffsets[blockI]
]
] = blockPoints[blockPointLabel];
}
}
// Scale the points
if (scaleFactor > 1.0 + SMALL || scaleFactor < 1.0 - SMALL)
{
points *= 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] =
pointMergeList
[
curBlockCells[blockCellI][pointI]
+ blockOffsets[blockI]
];
}
cellShapes[nCreatedCells] = cellShape(hex, cellPoints);
nCreatedCells++;
}
}
Info<< "Creating boundary patches" << endl;
faceListList boundary(npatch);
wordList patchNames(npatch);
wordList patchTypes(npatch);
word defaultFacesName = "defaultFaces";
word defaultFacesType = wallPolyPatch::typeName;
label nCreatedPatches = 0;
forAll (rawPatches, patchI)
{
if (rawPatches[patchI].size() && cfxPatchTypes[patchI] != "BLKBDY")
{
// Check if this name has been already created
label existingPatch = -1;
for (label oldPatchI = 0; oldPatchI < nCreatedPatches; oldPatchI++)
{
if (patchNames[oldPatchI] == cfxPatchNames[patchI])
{
existingPatch = oldPatchI;
break;
}
}
const faceList& curRawPatch = rawPatches[patchI];
label curBlock = patchMasterBlocks[patchI];
if (existingPatch >= 0)
{
Info<< "CFX patch " << patchI
<< ", of type " << cfxPatchTypes[patchI]
<< ", name " << cfxPatchNames[patchI]
<< " already exists as FOAM patch " << existingPatch
<< ". Adding faces." << endl;
faceList& renumberedPatch = boundary[existingPatch];
label oldSize = renumberedPatch.size();
renumberedPatch.setSize(oldSize + curRawPatch.size());
forAll (curRawPatch, faceI)
{
const face& oldFace = curRawPatch[faceI];
face& newFace = renumberedPatch[oldSize + faceI];
newFace.setSize(oldFace.size());
forAll (oldFace, pointI)
{
newFace[pointI] =
pointMergeList
[
oldFace[pointI]
+ blockOffsets[curBlock]
];
}
}
}
else
{
// Real patch to be created
faceList& renumberedPatch = boundary[nCreatedPatches];
renumberedPatch.setSize(curRawPatch.size());
forAll (curRawPatch, faceI)
{
const face& oldFace = curRawPatch[faceI];
face& newFace = renumberedPatch[faceI];
newFace.setSize(oldFace.size());
forAll (oldFace, pointI)
{
newFace[pointI] =
pointMergeList
[
oldFace[pointI]
+ blockOffsets[curBlock]
];
}
}
Info<< "CFX patch " << patchI
<< ", of type " << cfxPatchTypes[patchI]
<< ", name " << cfxPatchNames[patchI]
<< " converted into FOAM patch " << nCreatedPatches
<< " type ";
if (cfxPatchTypes[patchI] == "WALL")
{
Info<< "wall." << endl;
patchTypes[nCreatedPatches] = wallPolyPatch::typeName;
patchNames[nCreatedPatches] = cfxPatchNames[patchI];
nCreatedPatches++;
}
else if (cfxPatchTypes[patchI] == "SYMMET")
{
Info<< "symmetryPlane." << endl;
patchTypes[nCreatedPatches] = symmetryPolyPatch::typeName;
patchNames[nCreatedPatches] = cfxPatchNames[patchI];
nCreatedPatches++;
}
else if
(
cfxPatchTypes[patchI] == "INLET"
|| cfxPatchTypes[patchI] == "OUTLET"
|| cfxPatchTypes[patchI] == "PRESS"
|| cfxPatchTypes[patchI] == "CNDBDY"
|| cfxPatchTypes[patchI] == "USER2D"
)
{
Info<< "generic." << endl;
patchTypes[nCreatedPatches] = polyPatch::typeName;
patchNames[nCreatedPatches] = cfxPatchNames[patchI];
nCreatedPatches++;
}
else
{
FatalErrorIn(args.executable())
<< "Unrecognised CFX patch type "
<< cfxPatchTypes[patchI]
<< abort(FatalError);
}
}
}
}
boundary.setSize(nCreatedPatches);
patchTypes.setSize(nCreatedPatches);
patchNames.setSize(nCreatedPatches);
PtrList<dictionary> patchDicts;
preservePatchTypes
(
runTime,
runTime.constant(),
polyMesh::meshSubDir,
patchNames,
patchDicts,
defaultFacesName,
defaultFacesType
);
// Add information to dictionary
forAll (patchNames, patchI)
{
if (!patchDicts.set(patchI))
{
patchDicts.set(patchI, new dictionary());
}
// Add but not overwrite
patchDicts[patchI].add("type", patchTypes[patchI], false);
}
polyMesh pShapeMesh
(
IOobject
(
polyMesh::defaultRegion,
runTime.constant(),
runTime
),
xferMove(points),
cellShapes,
boundary,
patchNames,
patchDicts,
defaultFacesName,
defaultFacesType
);
// Set the precision of the points data to 10
IOstream::defaultPrecision(max(10u, IOstream::defaultPrecision()));
Info<< "Writing polyMesh" << endl;
pShapeMesh.write();
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //