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8fe0d1bacd
- generic isoSurfaceBase. Provides simpler cell-cut detection and various functions that can be used for iso-surfaces or when preparing prefiltered input for iso-surfaces. - rudimentary runtime selection ENH: isoSurface Cell/Topo uses the isoSurfaceBase infrastructure - simpler cell cut detection, common routines - ensure that tetMatcher is only called once per cell ENH: use indirect patch during edge erosion - lower overhead, allows backtracking (future) if needed
99 lines
2.9 KiB
C
99 lines
2.9 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) 2011-2018 OpenFOAM Foundation
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Copyright (C) 2020 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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\*---------------------------------------------------------------------------*/
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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template<class Type>
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Foam::tmp<Foam::Field<Type>>
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Foam::isoSurfaceTopo::interpolateTemplate
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(
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const Field<Type>& cellCoords,
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const Field<Type>& pointCoords
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) const
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{
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auto tfld = tmp<Field<Type>>::New(pointToVerts_.size());
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auto& fld = tfld.ref();
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forAll(pointToVerts_, i)
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{
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scalar s0;
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Type p0;
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{
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label idx = pointToVerts_[i].first();
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if (idx < mesh_.nPoints())
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{
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// Point index
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s0 = pVals_[idx];
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p0 = pointCoords[idx];
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}
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else
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{
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// Cell index
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idx -= mesh_.nPoints();
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s0 = cVals_[idx];
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p0 = cellCoords[idx];
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}
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}
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scalar s1;
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Type p1;
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{
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label idx = pointToVerts_[i].second();
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if (idx < mesh_.nPoints())
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{
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// Point index
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s1 = pVals_[idx];
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p1 = pointCoords[idx];
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}
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else
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{
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// Cell index
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idx -= mesh_.nPoints();
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s1 = cVals_[idx];
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p1 = cellCoords[idx];
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}
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}
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const scalar d = s1-s0;
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if (mag(d) > VSMALL)
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{
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const scalar s = (iso_-s0)/d;
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fld[i] = s*p1+(1.0-s)*p0;
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}
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else
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{
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fld[i] = 0.5*(p0+p1);
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}
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}
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return tfld;
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}
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// ************************************************************************* //
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