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ENH: foamyHexMesh: add rayShooting initial points method
This commit is contained in:
laurence
@ -64,6 +64,7 @@ initialPointsMethod/bodyCentredCubic/bodyCentredCubic.C
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initialPointsMethod/faceCentredCubic/faceCentredCubic.C
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initialPointsMethod/pointFile/pointFile.C
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initialPointsMethod/autoDensity/autoDensity.C
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initialPointsMethod/rayShooting/rayShooting.C
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relaxationModel/relaxationModel/relaxationModel.C
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relaxationModel/adaptiveLinear/adaptiveLinear.C
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@ -1249,7 +1249,7 @@ void Foam::conformalVoronoiMesh::move()
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if
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(
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(
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(vA->internalPoint() && vB->internalPoint())
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(vA->internalPoint() || vB->internalPoint())
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&& (!vA->referred() || !vB->referred())
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// ||
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// (
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@ -0,0 +1,218 @@
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/*---------------------------------------------------------------------------*\
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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) 2013 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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\*---------------------------------------------------------------------------*/
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#include "rayShooting.H"
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#include "addToRunTimeSelectionTable.H"
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#include "triSurfaceMesh.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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defineTypeNameAndDebug(rayShooting, 0);
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addToRunTimeSelectionTable(initialPointsMethod, rayShooting, dictionary);
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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rayShooting::rayShooting
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(
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const dictionary& initialPointsDict,
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const Time& runTime,
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Random& rndGen,
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const conformationSurfaces& geometryToConformTo,
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const cellShapeControl& cellShapeControls,
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const autoPtr<backgroundMeshDecomposition>& decomposition
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)
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:
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initialPointsMethod
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(
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typeName,
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initialPointsDict,
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runTime,
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rndGen,
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geometryToConformTo,
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cellShapeControls,
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decomposition
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),
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maxRayLength_(readScalar(detailsDict().lookup("maxRayLength"))),
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randomiseInitialGrid_(detailsDict().lookup("randomiseInitialGrid")),
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randomPerturbationCoeff_
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(
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readScalar(detailsDict().lookup("randomPerturbationCoeff"))
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)
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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List<Vb::Point> rayShooting::initialPoints() const
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{
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// Loop over surface faces
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const searchableSurfaces& surfaces = geometryToConformTo().geometry();
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const labelList& surfacesToConformTo = geometryToConformTo().surfaces();
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// Initialise points list
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label initialPointsSize = 0;
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forAll(surfaces, surfI)
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{
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initialPointsSize += surfaces[surfI].size();
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}
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DynamicList<Vb::Point> initialPoints(initialPointsSize);
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forAll(surfacesToConformTo, surfI)
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{
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const searchableSurface& s = surfaces[surfacesToConformTo[surfI]];
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tmp<pointField> faceCentresTmp(s.coordinates());
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const pointField& faceCentres = faceCentresTmp();
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Info<< " Shoot rays from " << s.name() << nl
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<< " nRays = " << faceCentres.size() << endl;
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forAll(faceCentres, fcI)
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{
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const Foam::point& fC = faceCentres[fcI];
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if
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(
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Pstream::parRun()
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&& !decomposition().positionOnThisProcessor(fC)
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)
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{
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continue;
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}
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const scalar pert =
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randomPerturbationCoeff_
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*cellShapeControls().cellSize(fC);
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pointIndexHit surfHitStart;
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label hitSurfaceStart;
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// Face centres should be on the surface so search distance can be
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// small
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geometryToConformTo().findSurfaceNearest
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(
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fC,
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sqr(SMALL),
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surfHitStart,
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hitSurfaceStart
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);
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vectorField normStart(1, vector::min);
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geometryToConformTo().getNormal
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(
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hitSurfaceStart,
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List<pointIndexHit>(1, surfHitStart),
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normStart
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);
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pointIndexHit surfHitEnd;
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label hitSurfaceEnd;
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geometryToConformTo().findSurfaceNearestIntersection
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(
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fC - normStart[0]*SMALL,
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fC - normStart[0]*maxRayLength_,
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surfHitEnd,
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hitSurfaceEnd
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);
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vectorField normEnd(1, vector::min);
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geometryToConformTo().getNormal
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(
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hitSurfaceEnd,
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List<pointIndexHit>(1, surfHitEnd),
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normEnd
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);
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if
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(
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surfHitEnd.hit()
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&& ((normStart[0] & normEnd[0]) < 0)
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)
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{
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line<point, point> l(fC, surfHitEnd.hitPoint());
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if (Pstream::parRun())
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{
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// Clip the line in parallel
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pointIndexHit procIntersection =
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decomposition().findLine
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(
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l.start() + l.vec()*SMALL,
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l.end() - l.vec()*maxRayLength_
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);
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if (procIntersection.hit())
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{
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l =
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line<point, point>
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(
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l.start(),
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procIntersection.hitPoint()
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);
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}
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}
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Foam::point midPoint(l.centre());
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const scalar minDistFromSurfaceSqr =
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minimumSurfaceDistanceCoeffSqr_
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*sqr(cellShapeControls().cellSize(midPoint));
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if
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(
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magSqr(midPoint - l.start()) > minDistFromSurfaceSqr
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&& magSqr(midPoint - l.end()) > minDistFromSurfaceSqr
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)
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{
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if (randomiseInitialGrid_)
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{
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midPoint.x() += pert*(rndGen().scalar01() - 0.5);
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midPoint.y() += pert*(rndGen().scalar01() - 0.5);
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midPoint.z() += pert*(rndGen().scalar01() - 0.5);
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}
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initialPoints.append(toPoint(midPoint));
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}
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}
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}
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}
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return initialPoints.shrink();
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// ************************************************************************* //
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@ -0,0 +1,105 @@
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/*---------------------------------------------------------------------------*\
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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) 2013 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
|
||||
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/>.
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Class
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Foam::rayShooting
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Description
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SourceFiles
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rayShooting.C
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\*---------------------------------------------------------------------------*/
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#ifndef rayShooting_H
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#define rayShooting_H
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#include "initialPointsMethod.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class rayShooting Declaration
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\*---------------------------------------------------------------------------*/
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class rayShooting
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:
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public initialPointsMethod
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{
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private:
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// Private data
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const scalar maxRayLength_;
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//- Should the initial positions be randomised
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Switch randomiseInitialGrid_;
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//- Randomise the initial positions by fraction of the initialCellSize_
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scalar randomPerturbationCoeff_;
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public:
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//- Runtime type information
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TypeName("rayShooting");
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// Constructors
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//- Construct from components
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rayShooting
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(
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const dictionary& initialPointsDict,
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const Time& runTime,
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Random& rndGen,
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const conformationSurfaces& geometryToConformTo,
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const cellShapeControl& cellShapeControls,
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const autoPtr<backgroundMeshDecomposition>& decomposition
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);
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//- Destructor
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virtual ~rayShooting()
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{}
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// Member Functions
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//- Return the initial points for the conformalVoronoiMesh
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virtual List<Vb::Point> initialPoints() const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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