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ENH: patchSeedSet: sampledSet for starting tracks on patches
This commit is contained in:
mattijs
@ -11,7 +11,7 @@ sampledSet/polyLine/polyLineSet.C
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sampledSet/face/faceOnlySet.C
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sampledSet/midPoint/midPointSet.C
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sampledSet/midPointAndFace/midPointAndFaceSet.C
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/* sampledSet/patchSeed/patchSeedSet.C */
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sampledSet/patchSeed/patchSeedSet.C
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sampledSet/sampledSet/sampledSet.C
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sampledSet/sampledSets/sampledSets.C
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sampledSet/sampledSets/sampledSetsGrouping.C
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239
src/sampling/sampledSet/patchSeed/patchSeedSet.C
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239
src/sampling/sampledSet/patchSeed/patchSeedSet.C
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@ -0,0 +1,239 @@
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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) 2012 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 "patchSeedSet.H"
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#include "polyMesh.H"
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#include "addToRunTimeSelectionTable.H"
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#include "treeBoundBox.H"
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#include "treeDataFace.H"
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#include "Time.H"
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#include "meshTools.H"
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//#include "Random.H"
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// For 'facePoint' helper function only
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#include "mappedPatchBase.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(patchSeedSet, 0);
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addToRunTimeSelectionTable(sampledSet, patchSeedSet, word);
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void Foam::patchSeedSet::calcSamples
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(
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DynamicList<point>& samplingPts,
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DynamicList<label>& samplingCells,
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DynamicList<label>& samplingFaces,
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DynamicList<label>& samplingSegments,
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DynamicList<scalar>& samplingCurveDist
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)
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{
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if (debug)
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{
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Info<< "patchSeedSet : sampling on patches :" << endl;
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}
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// Construct search tree for all patch faces.
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label sz = 0;
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forAllConstIter(labelHashSet, patchSet_, iter)
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{
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const polyPatch& pp = mesh().boundaryMesh()[iter.key()];
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sz += pp.size();
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if (debug)
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{
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Info<< " " << pp.name() << " size " << pp.size() << endl;
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}
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}
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labelList patchFaces(sz);
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sz = 0;
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forAllConstIter(labelHashSet, patchSet_, iter)
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{
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const polyPatch& pp = mesh().boundaryMesh()[iter.key()];
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forAll(pp, i)
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{
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patchFaces[sz++] = pp.start()+i;
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}
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}
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label totalSize = returnReduce(sz, sumOp<label>());
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// Shuffle and truncate if in random mode
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if (maxPoints_ < totalSize)
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{
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// Check what fraction of maxPoints_ I need to generate locally.
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label myMaxPoints = label(scalar(sz)/totalSize*maxPoints_);
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rndGenPtr_.reset(new Random(123456));
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Random& rndGen = rndGenPtr_();
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labelList subset = identity(sz);
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for (label iter = 0; iter < 4; iter++)
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{
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forAll(subset, i)
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{
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label j = rndGen.integer(0, subset.size()-1);
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Swap(subset[i], subset[j]);
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}
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}
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// Truncate
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subset.setSize(myMaxPoints);
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// Subset patchFaces
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patchFaces = UIndirectList<label>(patchFaces, subset)();
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if (debug)
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{
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Pout<< "In random mode : selected " << patchFaces
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<< " faces out of " << sz << endl;
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}
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}
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// Get points on patchFaces.
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globalIndex globalSampleNumbers(patchFaces.size());
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samplingPts.setCapacity(patchFaces.size());
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samplingCells.setCapacity(patchFaces.size());
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samplingFaces.setCapacity(patchFaces.size());
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samplingSegments.setCapacity(patchFaces.size());
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samplingCurveDist.setCapacity(patchFaces.size());
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// For calculation of min-decomp tet base points
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(void)mesh().tetBasePtIs();
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forAll(patchFaces, i)
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{
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label faceI = patchFaces[i];
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pointIndexHit info = mappedPatchBase::facePoint
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(
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mesh(),
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faceI,
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polyMesh::FACEDIAGTETS
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);
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label cellI = mesh().faceOwner()[faceI];
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if (info.hit())
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{
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// Move the point into the cell
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const point& cc = mesh().cellCentres()[cellI];
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samplingPts.append
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(
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info.hitPoint() + 1E-1*(cc-info.hitPoint())
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);
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}
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else
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{
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samplingPts.append(info.rawPoint());
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}
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samplingCells.append(cellI);
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samplingFaces.append(faceI);
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samplingSegments.append(0);
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samplingCurveDist.append(globalSampleNumbers.toGlobal(i));
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}
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}
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void Foam::patchSeedSet::genSamples()
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{
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// Storage for sample points
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DynamicList<point> samplingPts;
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DynamicList<label> samplingCells;
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DynamicList<label> samplingFaces;
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DynamicList<label> samplingSegments;
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DynamicList<scalar> samplingCurveDist;
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calcSamples
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(
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samplingPts,
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samplingCells,
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samplingFaces,
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samplingSegments,
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samplingCurveDist
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);
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samplingPts.shrink();
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samplingCells.shrink();
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samplingFaces.shrink();
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samplingSegments.shrink();
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samplingCurveDist.shrink();
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setSamples
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(
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samplingPts,
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samplingCells,
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samplingFaces,
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samplingSegments,
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samplingCurveDist
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);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::patchSeedSet::patchSeedSet
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(
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const word& name,
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const polyMesh& mesh,
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meshSearch& searchEngine,
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const dictionary& dict
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)
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:
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sampledSet(name, mesh, searchEngine, dict),
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patchSet_
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(
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mesh.boundaryMesh().patchSet
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(
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wordReList(dict.lookup("patches"))
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)
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),
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//searchDist_(readScalar(dict.lookup("maxDistance"))),
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//offsetDist_(readScalar(dict.lookup("offsetDist"))),
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maxPoints_(readLabel(dict.lookup("maxPoints")))
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{
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genSamples();
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if (debug)
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{
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write(Info);
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}
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::patchSeedSet::~patchSeedSet()
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{}
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// ************************************************************************* //
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133
src/sampling/sampledSet/patchSeed/patchSeedSet.H
Normal file
133
src/sampling/sampledSet/patchSeed/patchSeedSet.H
Normal file
@ -0,0 +1,133 @@
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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) 2012 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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|
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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.
|
||||
|
||||
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
||||
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::patchSeedSet
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Description
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Initialises points on or just off patch
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SourceFiles
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patchSeedSet.C
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\*---------------------------------------------------------------------------*/
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#ifndef patchSeedSet_H
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#define patchSeedSet_H
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#include "sampledSet.H"
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#include "DynamicList.H"
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#include "HashSet.H"
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#include "Random.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class patchSeedSet Declaration
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\*---------------------------------------------------------------------------*/
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class patchSeedSet
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:
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public sampledSet
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{
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// Private data
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//- Patches to sample
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const labelHashSet patchSet_;
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// //- Maximum distance to look for nearest
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// const scalar searchDist_;
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//
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// //- Offset distance
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// const scalar offsetDist_;
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//- Maximum number of patch faces to seed
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const label maxPoints_;
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//- Random number generator (if maxPoints < num patch faces)
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autoPtr<Random> rndGenPtr_;
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// Private Member Functions
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//- Samples all points in sampleCoords.
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void calcSamples
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(
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DynamicList<point>& samplingPts,
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DynamicList<label>& samplingCells,
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DynamicList<label>& samplingFaces,
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DynamicList<label>& samplingSegments,
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DynamicList<scalar>& samplingCurveDist
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);
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//- Uses calcSamples to obtain samples. Copies them into *this.
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void genSamples();
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public:
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//- Runtime type information
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TypeName("patchSeed");
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// Constructors
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// //- Construct from components
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// patchSeedSet
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// (
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// const word& name,
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// const polyMesh& mesh,
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// meshSearch& searchEngine,
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// const word& axis,
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// const List<point>& sampleCoords,
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// const labelHashSet& patchSet,
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// const scalar searchDist
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// );
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//- Construct from dictionary
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patchSeedSet
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(
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const word& name,
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const polyMesh& mesh,
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meshSearch& searchEngine,
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const dictionary& dict
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);
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//- Destructor
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virtual ~patchSeedSet();
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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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