b060378dca
- wrap command-line retrieval of fileName with an implicit validate.
Instead of this:
fileName input(args[1]);
fileName other(args["someopt"]);
Now use this:
auto input = args.get<fileName>(1);
auto other = args.get<fileName>("someopt");
which adds a fileName::validate on the inputs
Because of how it is implemented, it will automatically also apply
to argList getOrDefault<fileName>, readIfPresent<fileName> etc.
- adjust fileName::validate and clean to handle backslash conversion.
This makes it easier to ensure that path names arising from MS-Windows
are consistently handled internally.
- dictionarySearch: now check for initial '/' directly instead of
relying on fileName isAbsolute(), which now does more things
BREAKING: remove fileName::clean() const method
- relying on const/non-const to control the behaviour (inplace change
or return a copy) is too fragile and the const version was
almost never used.
Replace:
fileName sanitized = constPath.clean();
With:
fileName sanitized(constPath);
sanitized.clean());
STYLE: test empty() instead of comparing with fileName::null
335 lines
9.1 KiB
C
335 lines
9.1 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 | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2011-2016 OpenFOAM Foundation
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Copyright (C) 2020-2021 OpenCFD Ltd.
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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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netgenNeutralToFoam
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Group
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grpMeshConversionUtilities
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Description
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Convert a neutral file format (Netgen v4.4) to OpenFOAM.
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Example:
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9
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1.000000 1.000000 1.000000
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0.000000 1.000000 1.000000
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0.000000 0.000000 1.000000
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1.000000 0.000000 1.000000
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0.000000 1.000000 0.000000
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1.000000 1.000000 0.000000
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1.000000 0.000000 0.000000
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0.000000 0.000000 0.000000
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0.500000 0.500000 0.500000
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12
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1 7 8 9 3
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1 5 9 6 8
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1 5 9 2 1
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1 4 9 7 6
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1 7 8 6 9
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1 4 6 1 9
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1 5 9 8 2
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1 4 1 2 9
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1 1 6 5 9
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1 2 3 4 9
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1 8 9 3 2
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1 4 9 3 7
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12
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1 1 2 4
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1 3 4 2
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2 5 6 8
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2 7 8 6
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3 1 4 6
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3 7 6 4
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5 2 1 5
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5 6 5 1
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5 3 2 8
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5 5 8 2
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6 4 3 7
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6 8 7 3
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NOTE:
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- reverse order of boundary faces using geometric test.
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(not very space efficient)
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- order of tet vertices only tested on one file.
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- all patch/cell/vertex numbers offset by one.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "Time.H"
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#include "polyMesh.H"
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#include "IFstream.H"
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#include "polyPatch.H"
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#include "cellModel.H"
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#include "triFace.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::addNote
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(
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"Convert a neutral file format (Netgen v4.4) to OpenFOAM"
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);
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argList::addArgument("Neutral file");
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#include "setRootCase.H"
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#include "createTime.H"
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IFstream str(args.get<fileName>(1));
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//
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// Read nodes.
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//
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label nNodes(readLabel(str));
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Info<< "nNodes:" << nNodes << endl;
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pointField points(nNodes);
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forAll(points, pointi)
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{
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scalar x,y,z;
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str >> x >> y >> z;
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points[pointi] = point(x, y, z);
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}
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label nTets(readLabel(str));
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Info<< "nTets:" << nTets << endl;
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const cellModel& tet = cellModel::ref(cellModel::TET);
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cellShapeList cells(nTets);
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labelList tetPoints(4);
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forAll(cells, celli)
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{
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label domain(readLabel(str));
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if (domain != 1)
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{
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WarningInFunction
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<< "Cannot handle multiple domains"
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<< nl << "Ignoring domain " << domain << " setting on line "
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<< str.lineNumber() << endl;
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}
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tetPoints[1] = readLabel(str) - 1;
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tetPoints[0] = readLabel(str) - 1;
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tetPoints[2] = readLabel(str) - 1;
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tetPoints[3] = readLabel(str) - 1;
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cells[celli] = cellShape(tet, tetPoints);
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}
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label nFaces(readLabel(str));
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Info<< "nFaces:" << nFaces << endl;
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// Unsorted boundary faces
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faceList boundaryFaces(nFaces);
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// For each boundary faces the Foam patchID
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labelList boundaryPatch(nFaces, -1);
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// Max patch.
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label maxPatch = 0;
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// Boundary faces as three vertices
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HashTable<label, triFace, triFace::Hash<>> vertsToBoundary(nFaces);
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forAll(boundaryFaces, facei)
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{
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label patchi(readLabel(str));
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if (patchi < 0)
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{
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FatalErrorInFunction
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<< "Invalid boundary region number " << patchi
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<< " on line " << str.lineNumber()
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<< exit(FatalError);
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}
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maxPatch = max(maxPatch, patchi);
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triFace tri(readLabel(str)-1, readLabel(str)-1, readLabel(str)-1);
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// Store boundary face as is for now. Later on reverse it.
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boundaryFaces[facei].setSize(3);
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boundaryFaces[facei][0] = tri[0];
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boundaryFaces[facei][1] = tri[1];
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boundaryFaces[facei][2] = tri[2];
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boundaryPatch[facei] = patchi;
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vertsToBoundary.insert(tri, facei);
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}
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label nPatches = maxPatch + 1;
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// Use hash of points to get owner cell and orient the boundary face.
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// For storage reasons I store the triangles and loop over the cells instead
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// of the other way around (store cells and loop over triangles) though
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// that would be faster.
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forAll(cells, celli)
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{
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const cellShape& cll = cells[celli];
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// Get the four (outwards pointing) faces of the cell
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faceList tris(cll.faces());
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for (const face& f : tris)
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{
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// Is there any boundary face with same vertices?
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// (uses commutative hash)
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auto iter = vertsToBoundary.find(triFace(f[0], f[1], f[2]));
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if (iter.found())
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{
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const triFace& tri = iter.key();
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const label facei = iter.val();
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// Determine orientation of tri v.s. cell centre.
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point cc(cll.centre(points));
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point fc(tri.centre(points));
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const vector areaNorm(tri.areaNormal(points));
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if (((fc - cc) & areaNorm) < 0)
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{
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// Boundary face points inwards. Flip.
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boundaryFaces[facei].flip();
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}
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// Done this face so erase from hash
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vertsToBoundary.erase(iter);
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}
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}
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}
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if (vertsToBoundary.size())
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{
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// Didn't find cells connected to boundary faces.
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WarningInFunction
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<< "There are boundary faces without attached cells."
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<< "Boundary faces (as triFaces):" << vertsToBoundary.toc()
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<< endl;
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}
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// Storage for boundary faces sorted into patches
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faceListList patchFaces(nPatches);
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wordList patchNames(nPatches);
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forAll(patchNames, patchi)
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{
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patchNames[patchi] = polyPatch::defaultName(patchi);
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}
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wordList patchTypes(nPatches, polyPatch::typeName);
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word defaultFacesName = "defaultFaces";
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word defaultFacesType = polyPatch::typeName;
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wordList patchPhysicalTypes(nPatches, polyPatch::typeName);
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{
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// Sort boundaryFaces by patch.
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List<DynamicList<face>> allPatchFaces(nPatches);
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forAll(boundaryPatch, facei)
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{
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label patchi = boundaryPatch[facei];
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allPatchFaces[patchi].append(boundaryFaces[facei]);
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}
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Info<< "Patches:" << nl
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<< "\tNeutral Boundary\tPatch name\tSize" << nl
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<< "\t----------------\t----------\t----" << endl;
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forAll(allPatchFaces, patchi)
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{
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Info<< '\t' << patchi << "\t\t\t"
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<< patchNames[patchi] << "\t\t"
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<< allPatchFaces[patchi].size() << endl;
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patchFaces[patchi].transfer(allPatchFaces[patchi]);
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}
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Info<< endl;
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}
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polyMesh mesh
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(
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IOobject
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(
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polyMesh::defaultRegion,
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runTime.constant(),
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runTime
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),
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std::move(points),
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cells,
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patchFaces,
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patchNames,
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patchTypes,
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defaultFacesName,
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defaultFacesType,
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patchPhysicalTypes
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);
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// Set the precision of the points data to 10
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IOstream::defaultPrecision(max(10u, IOstream::defaultPrecision()));
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Info<< "Writing mesh ..." << endl;
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mesh.removeFiles();
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mesh.write();
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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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