722d23f59c
- Constructor for bounding box of a single point.
- add(boundBox), add(point) ...
-> Extend box to enclose the second box or point(s).
Eg,
bb.add(pt);
vs.
bb.min() = Foam::min(bb.min(), pt);
bb.max() = Foam::max(bb.max(), pt);
Also works with other bounding boxes.
Eg,
bb.add(bb2);
// OR
bb += bb2;
vs.
bb.min() = Foam::min(bb.min(), bb2.min());
bb.max() = Foam::max(bb.max(), bb2.max());
'+=' operator allows the reduction to be used in parallel
gather/scatter operations.
A global '+' operator is not currently needed.
Note: may be useful in the future to have a 'clear()' method
that resets to a zero-sized (inverted) box.
STYLE: make many bounding box constructors explicit
131 lines
3.6 KiB
C
131 lines
3.6 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 | Copyright (C) 2016-2017 OpenCFD Ltd.
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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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Description
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Test bounding box behaviour
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "Time.H"
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#include "polyMesh.H"
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#include "boundBox.H"
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#include "treeBoundBox.H"
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#include "cellModeller.H"
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using namespace Foam;
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//- simple helper to create a cube
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boundBox cube(scalar start, scalar width)
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{
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return boundBox
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(
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point::uniform(start),
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point::uniform(start + width)
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);
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Main program:
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int main(int argc, char *argv[])
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{
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#include "setRootCase.H"
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// #include "createTime.H"
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// #include "createMesh.H"
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const cellModel& hex = *(cellModeller::lookup("hex"));
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Info<<"boundBox faces: " << boundBox::faces << endl;
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Info<<"hex faces: " << hex.modelFaces() << endl;
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Info<<"tree-bb faces: " << treeBoundBox::faces << endl;
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Info<<"tree-bb edges: " << treeBoundBox::edges << endl;
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boundBox bb = boundBox::greatBox;
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Info<<"great box: " << bb << endl;
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// bb.clear();
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// Info<<"zero box: " << bb << endl;
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bb = boundBox::invertedBox;
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Info<<"invalid box: " << bb << endl;
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Info<< nl << endl;
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if (Pstream::parRun())
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{
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bb = cube(Pstream::myProcNo(), 1.1);
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Pout<<"box: " << bb << endl;
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bb.reduce();
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Pout<<"reduced: " << bb << endl;
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}
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else
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{
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bb = cube(0, 1);
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Info<<"starting box: " << bb << endl;
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point pt(Zero);
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bb.add(pt);
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Info<<"enclose point " << pt << " -> " << bb << endl;
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pt = point(0,1.5,0.5);
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bb.add(pt);
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Info<<"enclose point " << pt << " -> " << bb << endl;
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pt = point(5,2,-2);
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bb.add(pt);
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Info<<"enclose point " << pt << " -> " << bb << endl;
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// restart with same points
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bb = boundBox::invertedBox;
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bb.add(point(1,1,1));
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bb.add(point::zero);
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bb.add(point(0,1.5,0.5));
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bb.add(point(5,2,-2));
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Info<<"repeated " << bb << endl;
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boundBox box1 = cube(0, 1);
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boundBox box2 = cube(0, 0.75);
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boundBox box3 = cube(0.5, 1);
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boundBox box4 = cube(-1, 0.5);
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Info<<"union of " << box1 << " and " << box2 << " => ";
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box1.add(box2);
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Info<< box1 << endl;
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box1.add(box3);
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Info<<"union with " << box3 << " => " << box1 << endl;
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box1.add(box4);
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Info<<"union with " << box4 << " => " << box1 << endl;
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}
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return 0;
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}
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// ************************************************************************* //
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