147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration |
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\\ / A nd | For copyright notice see file Copyright
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend 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 the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Description
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from the list of curved edges creates a list
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of edges that are not curved. It is assumed
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that all other edges are straight lines
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\*---------------------------------------------------------------------------*/
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#include "error.H"
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#include "blockDescriptor.H"
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#include "lineEdge.H"
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#include "lineDivide.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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scalar calcGexp(const scalar expRatio, const label dim)
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{
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if (dim == 1)
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{
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return 0.0;
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}
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else
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{
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return pow(expRatio, 1.0/(dim - 1));
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}
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}
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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void blockDescriptor::setEdge(label edgeI, label start, label end, label dim)
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{
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// for all edges check the list of curved edges. If the edge is curved,
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// add it to the list. If the edge is not found, create is as a line
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bool found = false;
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// set reference to the list of labels defining the block
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const labelList& blockLabels = blockShape_;
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// set reference to global list of points
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const pointField blockPoints = blockShape_.points(blockMeshPoints_);
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// x1
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found = false;
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forAll (curvedEdges_, nCEI)
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{
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if (curvedEdges_[nCEI].compare(blockLabels[start], blockLabels[end]))
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{
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found = true;
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// check the orientation:
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// if the starting point of the curve is the same as the starting
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// point of the edge, do the parametrisation and pick up the points
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if (blockLabels[start] == curvedEdges_[nCEI].start())
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{
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// calculate the geometric expension factor out of the
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// expansion ratio
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scalar gExp = calcGexp(expand_[edgeI], dim);
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// divide the line
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lineDivide divEdge(curvedEdges_[nCEI], dim, gExp);
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edgePoints_[edgeI] = divEdge.points();
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edgeWeights_[edgeI] = divEdge.lambdaDivisions();
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}
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else
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{
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// the curve has got the opposite orientation
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scalar gExp = calcGexp(expand_[edgeI], dim);
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// divide the line
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lineDivide divEdge(curvedEdges_[nCEI], dim, 1.0/(gExp + SMALL));
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pointField p = divEdge.points();
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scalarList d = divEdge.lambdaDivisions();
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edgePoints_[edgeI].setSize(p.size());
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edgeWeights_[edgeI].setSize(d.size());
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label pMax = p.size() - 1;
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forAll (p, pI)
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{
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edgePoints_[edgeI][pI] = p[pMax - pI];
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edgeWeights_[edgeI][pI] = 1.0 - d[pMax - pI];
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}
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}
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break;
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}
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}
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if (!found)
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{
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// edge is a straight line
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scalar gExp = calcGexp(expand_[edgeI], dim);
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// Divide the line
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lineEdge le(blockPoints, start, end);
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lineDivide divEdge
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(
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le,
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dim,
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gExp
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);
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edgePoints_[edgeI] = divEdge.points();
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edgeWeights_[edgeI] = divEdge.lambdaDivisions();
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}
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// ************************************************************************* //
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