761 lines
22 KiB
C
761 lines
22 KiB
C
/*---------------------------------------------------------------------------*\
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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) 2011-2016 OpenFOAM Foundation
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your 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, see <http://www.gnu.org/licenses/>.
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Application
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cfx4ToFoam
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Description
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Converts a CFX 4 mesh to OpenFOAM format.
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\*---------------------------------------------------------------------------*/
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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 "hexBlock.H"
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#include "polyMesh.H"
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#include "wallPolyPatch.H"
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#include "symmetryPolyPatch.H"
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#include "preservePatchTypes.H"
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#include "cellShape.H"
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#include "cellModeller.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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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("CFX geom file");
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argList::addOption
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(
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"scale",
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"factor",
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"geometry scaling factor - default is 1"
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);
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argList args(argc, argv);
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if (!args.check())
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{
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FatalError.exit();
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}
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const scalar scaleFactor = args.optionLookupOrDefault("scale", 1.0);
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#include "createTime.H"
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IFstream cfxFile(args[1]);
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// Read the cfx information using a fixed format reader.
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// Comments in the file are in C++ style, so the stream parser will remove
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// them with no intervention
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label nblock, npatch, nglue, nelem, npoint;
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cfxFile >> nblock >> npatch >> nglue >> nelem >> npoint;
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Info<< "Reading blocks" << endl;
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PtrList<hexBlock> blocks(nblock);
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{
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word blockName;
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label nx, ny, nz;
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forAll(blocks, blockI)
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{
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cfxFile >> blockName;
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cfxFile >> nx >> ny >> nz;
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blocks.set(blockI, new hexBlock(nx, ny, nz));
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}
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}
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Info<< "Reading patch definitions" << endl;
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wordList cfxPatchTypes(npatch);
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wordList cfxPatchNames(npatch);
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labelList patchMasterBlocks(npatch);
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labelList patchDirections(npatch);
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labelListList patchRanges(npatch);
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{
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label no, blkNo, patchLabel;
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forAll(cfxPatchTypes, patchi)
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{
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// Grab patch type and name
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cfxFile >> cfxPatchTypes[patchi] >> cfxPatchNames[patchi] >> no;
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// Grab patch range
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patchRanges[patchi].setSize(6);
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labelList& curRange = patchRanges[patchi];
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forAll(curRange, rI)
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{
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cfxFile >> curRange[rI];
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}
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// Grab patch direction and master block ID
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// Note: direc is the direction, from the cfx manual
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// 0 = solid (3-D patch),
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// 1 = high i, 2 = high j, 3 = high k
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// 4 = low i, 5 = low j, 6 = low k
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cfxFile >> patchDirections[patchi] >> blkNo >> patchLabel;
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patchMasterBlocks[patchi] = blkNo - 1;
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}
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}
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Info<< "Reading block glueing information" << endl;
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labelList glueMasterPatches(nglue, -1);
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labelList glueSlavePatches(nglue, -1);
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{
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label masterPatch, slavePatch;
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label dirIndex1, dirIndex2, dirIndex3, joinNumber;
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for (label glueI = 0; glueI < nglue; glueI++)
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{
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cfxFile >> masterPatch >> slavePatch;
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cfxFile >> dirIndex1 >> dirIndex2 >> dirIndex3 >> joinNumber;
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glueMasterPatches[glueI] = masterPatch - 1;
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glueSlavePatches[glueI] = slavePatch - 1;
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}
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}
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Info<< "Reading block points" << endl;
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forAll(blocks, blockI)
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{
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Info<< "block " << blockI << " is a ";
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blocks[blockI].readPoints(cfxFile);
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}
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Info<< "Calculating block offsets" << endl;
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labelList blockOffsets(nblock, -1);
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blockOffsets[0] = 0;
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label nMeshPoints = blocks[0].nBlockPoints();
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label nMeshCells = blocks[0].nBlockCells();
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for (label blockI = 1; blockI < nblock; blockI++)
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{
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nMeshPoints += blocks[blockI].nBlockPoints();
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nMeshCells += blocks[blockI].nBlockCells();
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blockOffsets[blockI] =
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blockOffsets[blockI - 1]
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+ blocks[blockI - 1].nBlockPoints();
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}
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Info<< "Assembling patches" << endl;
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faceListList rawPatches(npatch);
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forAll(rawPatches, patchi)
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{
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const word& patchType = cfxPatchTypes[patchi];
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// reject volume patches
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if
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(
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patchType == "POROUS" || patchType == "SOLID"
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|| patchType == "SOLCON" || patchType == "USER3D"
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)
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{
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patchMasterBlocks[patchi] = -1;
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rawPatches[patchi].setSize(0);
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}
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else
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{
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// read and create a 2-D patch
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rawPatches[patchi] =
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blocks[patchMasterBlocks[patchi]].patchFaces
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(
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patchDirections[patchi],
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patchRanges[patchi]
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);
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}
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}
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Info<< "Merging points ";
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labelList pointMergeList(nMeshPoints, -1);
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// In order to ensure robust merging, it is necessary to traverse
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// the patch glueing list until the pointMergeList stops changing.
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//
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// For efficiency, create merge pairs in the first pass
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labelListListList glueMergePairs(glueMasterPatches.size());
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forAll(glueMasterPatches, glueI)
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{
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const label masterPatch = glueMasterPatches[glueI];
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const label slavePatch = glueSlavePatches[glueI];
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const label blockPlabel = patchMasterBlocks[masterPatch];
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const label blockNlabel = patchMasterBlocks[slavePatch];
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const pointField& blockPpoints = blocks[blockPlabel].points();
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const pointField& blockNpoints = blocks[blockNlabel].points();
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const faceList& blockPFaces = rawPatches[masterPatch];
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const faceList& blockNFaces = rawPatches[slavePatch];
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labelListList& curPairs = glueMergePairs[glueI];
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curPairs.setSize(blockPFaces.size());
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if (blockPFaces.size() != blockNFaces.size())
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{
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FatalErrorInFunction
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<< "Inconsistent number of faces for glue pair "
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<< glueI << " between blocks " << blockPlabel + 1
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<< " and " << blockNlabel + 1
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<< abort(FatalError);
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}
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// Calculate sqr of the merge tolerance as 1/10th of the min
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// sqr point to point distance on the block face. This is an
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// N^2 algorithm, sorry but I cannot quickly come up with
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// something better.
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scalar sqrMergeTol = GREAT;
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forAll(blockPFaces, blockPFaceLabel)
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{
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const labelList& blockPFacePoints =
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blockPFaces[blockPFaceLabel];
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forAll(blockPFacePoints, blockPFacePointi)
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{
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forAll(blockPFacePoints, blockPFacePointi2)
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{
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if (blockPFacePointi != blockPFacePointi2)
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{
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sqrMergeTol =
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min
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(
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sqrMergeTol,
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magSqr
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(
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blockPpoints
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[blockPFacePoints[blockPFacePointi]]
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- blockPpoints
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[blockPFacePoints[blockPFacePointi2]]
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)
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);
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}
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}
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}
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}
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sqrMergeTol /= 10.0;
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bool found = false;
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// N-squared point search over all points of all faces of
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// master block over all point of all faces of slave block
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forAll(blockPFaces, blockPFaceLabel)
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{
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const labelList& blockPFacePoints =
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blockPFaces[blockPFaceLabel];
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labelList& cp = curPairs[blockPFaceLabel];
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cp.setSize(blockPFacePoints.size());
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forAll(blockPFacePoints, blockPFacePointi)
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{
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found = false;
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forAll(blockNFaces, blockNFaceLabel)
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{
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const labelList& blockNFacePoints =
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blockNFaces[blockNFaceLabel];
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forAll(blockNFacePoints, blockNFacePointi)
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{
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if
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(
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magSqr
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(
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blockPpoints
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[blockPFacePoints[blockPFacePointi]]
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- blockNpoints
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[blockNFacePoints[blockNFacePointi]]
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)
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< sqrMergeTol
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)
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{
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// Found a new pair
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found = true;
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cp[blockPFacePointi] =
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blockNFacePoints[blockNFacePointi];
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label PpointLabel =
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blockPFacePoints[blockPFacePointi]
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+ blockOffsets[blockPlabel];
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label NpointLabel =
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blockNFacePoints[blockNFacePointi]
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+ blockOffsets[blockNlabel];
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label minPN = min(PpointLabel, NpointLabel);
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if (pointMergeList[PpointLabel] != -1)
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{
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minPN = min(minPN, pointMergeList[PpointLabel]);
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}
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if (pointMergeList[NpointLabel] != -1)
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{
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minPN = min(minPN, pointMergeList[NpointLabel]);
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}
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pointMergeList[PpointLabel]
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= pointMergeList[NpointLabel]
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= minPN;
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break;
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}
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}
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if (found) break;
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}
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}
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}
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}
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bool changedPointMerge = false;
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label nPasses = 0;
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do
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{
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changedPointMerge = false;
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nPasses++;
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forAll(glueMasterPatches, glueI)
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{
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const label masterPatch = glueMasterPatches[glueI];
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const label slavePatch = glueSlavePatches[glueI];
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const label blockPlabel = patchMasterBlocks[masterPatch];
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const label blockNlabel = patchMasterBlocks[slavePatch];
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const faceList& blockPFaces = rawPatches[masterPatch];
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const labelListList& curPairs = glueMergePairs[glueI];
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forAll(blockPFaces, blockPFaceLabel)
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{
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const labelList& blockPFacePoints =
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blockPFaces[blockPFaceLabel];
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const labelList& cp = curPairs[blockPFaceLabel];
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forAll(cp, blockPFacePointi)
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{
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label PpointLabel =
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blockPFacePoints[blockPFacePointi]
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+ blockOffsets[blockPlabel];
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label NpointLabel =
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cp[blockPFacePointi]
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+ blockOffsets[blockNlabel];
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if
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(
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pointMergeList[PpointLabel]
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!= pointMergeList[NpointLabel]
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)
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{
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changedPointMerge = true;
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pointMergeList[PpointLabel]
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= pointMergeList[NpointLabel]
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= min
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(
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pointMergeList[PpointLabel],
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pointMergeList[NpointLabel]
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);
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}
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}
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}
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}
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Info<< "." << flush;
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}
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while (changedPointMerge && nPasses < 8);
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Info<< endl;
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if (changedPointMerge == true)
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{
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FatalErrorInFunction
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<< "Point merging failed after max number of passes."
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<< abort(FatalError);
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}
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forAll(glueMasterPatches, glueI)
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{
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const label masterPatch = glueMasterPatches[glueI];
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const label slavePatch = glueSlavePatches[glueI];
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const label blockPlabel = patchMasterBlocks[masterPatch];
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const label blockNlabel = patchMasterBlocks[slavePatch];
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const faceList& blockPFaces = rawPatches[masterPatch];
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const faceList& blockNFaces = rawPatches[slavePatch];
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forAll(blockPFaces, blockPFaceLabel)
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{
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const labelList& blockPFacePoints
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= blockPFaces[blockPFaceLabel];
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forAll(blockPFacePoints, blockPFacePointi)
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{
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label PpointLabel =
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blockPFacePoints[blockPFacePointi]
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+ blockOffsets[blockPlabel];
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if (pointMergeList[PpointLabel] == -1)
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{
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FatalErrorInFunction
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<< "Unable to merge point " << blockPFacePointi
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<< " of face " << blockPFaceLabel
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<< " of block " << blockPlabel
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<< abort(FatalError);
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}
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}
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}
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forAll(blockNFaces, blockNFaceLabel)
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{
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const labelList& blockNFacePoints
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= blockNFaces[blockNFaceLabel];
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forAll(blockNFacePoints, blockNFacePointi)
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{
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label NpointLabel =
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blockNFacePoints[blockNFacePointi]
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+ blockOffsets[blockNlabel];
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if (pointMergeList[NpointLabel] == -1)
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{
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FatalErrorInFunction
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<< "Unable to merge point " << blockNFacePointi
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<< " of face " << blockNFaceLabel
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<< " of block " << blockNlabel
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<< abort(FatalError);
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}
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}
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}
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}
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// sort merge list to return new point label (in new shorter list)
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// given old point label
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label nNewPoints = 0;
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forAll(pointMergeList, pointLabel)
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{
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if (pointMergeList[pointLabel] > pointLabel)
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{
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FatalErrorInFunction
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<< "ouch" << abort(FatalError);
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}
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if
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(
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(pointMergeList[pointLabel] == -1)
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|| pointMergeList[pointLabel] == pointLabel
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)
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{
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pointMergeList[pointLabel] = nNewPoints;
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nNewPoints++;
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}
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else
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{
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pointMergeList[pointLabel] =
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pointMergeList[pointMergeList[pointLabel]];
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}
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}
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nMeshPoints = nNewPoints;
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Info<< "Creating points" << endl;
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pointField points(nMeshPoints);
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forAll(blocks, blockI)
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{
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const pointField& blockPoints = blocks[blockI].points();
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forAll(blockPoints, blockPointLabel)
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{
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points
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[
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pointMergeList
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[
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blockPointLabel
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+ blockOffsets[blockI]
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]
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] = blockPoints[blockPointLabel];
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}
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}
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// Scale the points
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if (scaleFactor > 1.0 + SMALL || scaleFactor < 1.0 - SMALL)
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{
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points *= scaleFactor;
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}
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Info<< "Creating cells" << endl;
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cellShapeList cellShapes(nMeshCells);
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const cellModel& hex = *(cellModeller::lookup("hex"));
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label nCreatedCells = 0;
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forAll(blocks, blockI)
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{
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labelListList curBlockCells = blocks[blockI].blockCells();
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forAll(curBlockCells, blockCelli)
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{
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labelList cellPoints(curBlockCells[blockCelli].size());
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forAll(cellPoints, pointi)
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{
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cellPoints[pointi] =
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pointMergeList
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[
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curBlockCells[blockCelli][pointi]
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+ blockOffsets[blockI]
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];
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}
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cellShapes[nCreatedCells] = cellShape(hex, cellPoints);
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nCreatedCells++;
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}
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}
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Info<< "Creating boundary patches" << endl;
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faceListList boundary(npatch);
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wordList patchNames(npatch);
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wordList patchTypes(npatch);
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word defaultFacesName = "defaultFaces";
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word defaultFacesType = wallPolyPatch::typeName;
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label nCreatedPatches = 0;
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forAll(rawPatches, patchi)
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{
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if (rawPatches[patchi].size() && cfxPatchTypes[patchi] != "BLKBDY")
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{
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// Check if this name has been already created
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label existingPatch = -1;
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for (label oldPatchi = 0; oldPatchi < nCreatedPatches; oldPatchi++)
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{
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if (patchNames[oldPatchi] == cfxPatchNames[patchi])
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{
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existingPatch = oldPatchi;
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break;
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}
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}
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const faceList& curRawPatch = rawPatches[patchi];
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label curBlock = patchMasterBlocks[patchi];
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if (existingPatch >= 0)
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{
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Info<< "CFX patch " << patchi
|
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<< ", of type " << cfxPatchTypes[patchi]
|
|
<< ", name " << cfxPatchNames[patchi]
|
|
<< " already exists as OpenFOAM 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 OpenFOAM 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
|
|
{
|
|
FatalErrorInFunction
|
|
<< "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;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|