392 lines
11 KiB
C++
392 lines
11 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.1
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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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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\*---------------------------------------------------------------------------*/
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#include "hexBlock.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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label hexBlock::vtxLabel(label a, label b, label c) const
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{
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return (a + b*(xDim_ + 1) + c*(xDim_ + 1)*(yDim_ + 1));
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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// Construct from components
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hexBlock::hexBlock(const label nx, const label ny, const label nz)
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:
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xDim_(nx),
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yDim_(ny),
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zDim_(nz),
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blockHandedness_(noPoints),
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points_((xDim_ + 1)*(yDim_ + 1)*(zDim_ + 1))
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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void hexBlock::readPoints(Istream& is)
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{
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forAll (points_, i)
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{
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is >> points_[i].x() >> points_[i].y() >> points_[i].z();
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}
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// Calculate the handedness of the block
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vector i = points_[xDim_] - points_[0];
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vector j = points_[(xDim_ + 1)*yDim_] - points_[0];
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vector k = points_[(xDim_ + 1)*(yDim_ + 1)*zDim_] - points_[0];
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if (((i ^ j) & k) > 0)
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{
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Info << "right-handed block" << endl;
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blockHandedness_ = right;
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}
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else
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{
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Info << "left-handed block" << endl;
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blockHandedness_ = left;
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}
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}
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labelListList hexBlock::blockCells() const
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{
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labelListList result(xDim_*yDim_*zDim_);
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label cellNo = 0;
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if (blockHandedness_ == right)
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{
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for (label k = 0; k <= zDim_ - 1; k++)
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{
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for (label j = 0; j <= yDim_ - 1; j++)
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{
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for (label i = 0; i <= xDim_ - 1; i++)
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{
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labelList& hexLabels = result[cellNo];
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hexLabels.setSize(8);
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hexLabels[0] = vtxLabel(i, j, k);
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hexLabels[1] = vtxLabel(i+1, j, k);
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hexLabels[2] = vtxLabel(i+1, j+1, k);
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hexLabels[3] = vtxLabel(i, j+1, k);
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hexLabels[4] = vtxLabel(i, j, k+1);
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hexLabels[5] = vtxLabel(i+1, j, k+1);
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hexLabels[6] = vtxLabel(i+1, j+1, k+1);
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hexLabels[7] = vtxLabel(i, j+1, k+1);
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cellNo++;
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}
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}
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}
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}
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else if (blockHandedness_ == left)
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{
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for (label k = 0; k <= zDim_ - 1; k++)
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{
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for (label j = 0; j <= yDim_ - 1; j++)
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{
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for (label i = 0; i <= xDim_ - 1; i++)
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{
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labelList& hexLabels = result[cellNo];
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hexLabels.setSize(8);
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hexLabels[0] = vtxLabel(i, j, k+1);
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hexLabels[1] = vtxLabel(i+1, j, k+1);
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hexLabels[2] = vtxLabel(i+1, j+1, k+1);
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hexLabels[3] = vtxLabel(i, j+1, k+1);
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hexLabels[4] = vtxLabel(i, j, k);
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hexLabels[5] = vtxLabel(i+1, j, k);
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hexLabels[6] = vtxLabel(i+1, j+1, k);
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hexLabels[7] = vtxLabel(i, j+1, k);
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cellNo++;
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}
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}
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}
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}
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else
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{
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FatalErrorIn("hexBlock::cellShapes()")
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<< "Unable to determine block handedness as points "
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<< "have not been read in yet"
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<< abort(FatalError);
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}
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return result;
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}
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// Return block patch faces given direction and range limits
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// From the cfx manual: direction
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// 0 = solid (3-D patch),
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// 1 = high i, 2 = high j, 3 = high k
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// 4 = low i, 5 = low j, 6 = low k
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faceList hexBlock::patchFaces(const label direc, const labelList& range) const
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{
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if (range.size() != 6)
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{
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FatalErrorIn
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(
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"patchFaces(const label direc, const labelList& range) const"
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) << "Invalid size of the range array: " << range.size()
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<< ". Should be 6 (xMin, xMax, yMin, yMax, zMin, zMax"
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<< abort(FatalError);
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}
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label xMinRange = range[0];
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label xMaxRange = range[1];
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label yMinRange = range[2];
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label yMaxRange = range[3];
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label zMinRange = range[4];
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label zMaxRange = range[5];
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faceList result(0);
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switch (direc)
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{
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case 1:
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{
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// high i = xmax
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result.setSize
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(
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(yMaxRange - yMinRange + 1)*(zMaxRange - zMinRange + 1)
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);
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label p = 0;
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for (label k = zMinRange - 1; k <= zMaxRange - 1; k++)
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{
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for (label j = yMinRange - 1; j <= yMaxRange - 1; j++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(xDim_, j, k);
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result[p][1] = vtxLabel(xDim_, j+1, k);
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result[p][2] = vtxLabel(xDim_, j+1, k+1);
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result[p][3] = vtxLabel(xDim_, j, k+1);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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case 2:
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{
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// high j = ymax
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result.setSize
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(
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(xMaxRange - xMinRange + 1)*(zMaxRange - zMinRange + 1)
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);
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label p = 0;
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for (label i = xMinRange - 1; i <= xMaxRange - 1; i++)
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{
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for (label k = zMinRange - 1; k <= zMaxRange - 1; k++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(i, yDim_, k);
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result[p][1] = vtxLabel(i, yDim_, k + 1);
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result[p][2] = vtxLabel(i + 1, yDim_, k + 1);
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result[p][3] = vtxLabel(i + 1, yDim_, k);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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case 3:
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{
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// high k = zmax
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result.setSize
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(
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(xMaxRange - xMinRange + 1)*(yMaxRange - yMinRange + 1)
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);
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label p = 0;
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for (label i = xMinRange - 1; i <= xMaxRange - 1; i++)
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{
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for (label j = yMinRange - 1; j <= yMaxRange - 1; j++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(i, j, zDim_);
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result[p][1] = vtxLabel(i + 1, j, zDim_);
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result[p][2] = vtxLabel(i + 1, j + 1, zDim_);
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result[p][3] = vtxLabel(i, j + 1, zDim_);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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case 4:
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{
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// low i = xmin
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result.setSize
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(
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(yMaxRange - yMinRange + 1)*(zMaxRange - zMinRange + 1)
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);
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label p = 0;
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for (label k = zMinRange - 1; k <= zMaxRange - 1; k++)
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{
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for (label j = yMinRange - 1; j <= yMaxRange - 1; j++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(0, j, k);
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result[p][1] = vtxLabel(0, j, k + 1);
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result[p][2] = vtxLabel(0, j + 1, k + 1);
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result[p][3] = vtxLabel(0, j + 1, k);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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case 5:
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{
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// low j = ymin
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result.setSize
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(
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(xMaxRange - xMinRange + 1)*(zMaxRange - zMinRange + 1)
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);
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label p = 0;
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for (label i = xMinRange - 1; i <= xMaxRange - 1; i++)
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{
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for (label k = zMinRange - 1; k <= zMaxRange - 1; k++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(i, 0, k);
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result[p][1] = vtxLabel(i + 1, 0, k);
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result[p][2] = vtxLabel(i + 1, 0, k + 1);
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result[p][3] = vtxLabel(i, 0, k + 1);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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case 6:
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{
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// low k = zmin
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result.setSize
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(
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(xMaxRange - xMinRange + 1)*(yMaxRange - yMinRange + 1)
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);
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label p = 0;
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for (label i = xMinRange - 1; i <= xMaxRange - 1; i++)
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{
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for (label j = yMinRange - 1; j <= yMaxRange - 1; j++)
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{
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result[p].setSize(4);
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// set the points
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result[p][0] = vtxLabel(i, j, 0);
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result[p][1] = vtxLabel(i, j + 1, 0);
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result[p][2] = vtxLabel(i + 1, j + 1, 0);
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result[p][3] = vtxLabel(i + 1, j, 0);
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p++;
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}
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}
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result.setSize(p);
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break;
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}
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default:
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{
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FatalErrorIn
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(
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"patchFaces(const label direc, const labelList& range) const"
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) << "direction out of range (1 to 6): " << direc
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<< abort(FatalError);
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}
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}
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// Correct the face orientation based on the handedness of the block.
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// Do nothing for the right-handed block
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if (blockHandedness_ == noPoints)
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{
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FatalErrorIn
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(
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"patchFaces(const label direc, const labelList& range) const"
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) << "Unable to determine block handedness as points "
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<< "have not been read in yet"
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<< abort(FatalError);
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}
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else if (blockHandedness_ == left)
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{
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// turn all faces inside out
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forAll (result, faceI)
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{
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result[faceI] = result[faceI].reverseFace();
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}
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}
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return result;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// ************************************************************************* //
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