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https://develop.openfoam.com/Development/openfoam.git
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b4a482751b
- combine header definitions, more pass-through methods - face/triFace: support += operator (vertex offset)
143 lines
4.0 KiB
C++
143 lines
4.0 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 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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Class
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Foam::triangleFuncs
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Description
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Contains various triangle static functions.
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SourceFiles
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triangleFuncs.C
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\*---------------------------------------------------------------------------*/
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#ifndef Foam_triangleFuncs_H
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#define Foam_triangleFuncs_H
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#include "pointField.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward Declarations
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class treeBoundBox;
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/*---------------------------------------------------------------------------*\
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Class triangleFuncs Declaration
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\*---------------------------------------------------------------------------*/
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class triangleFuncs
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{
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// Private Member Functions
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//- Sets pt to be anywhere on the edge between oppositeSidePt
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//- and thisSidePt depending on both signs.
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// \note Helper function for intersect()
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static void setIntersection
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(
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const point& oppositeSidePt,
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const scalar oppositeSign,
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const point& thisSidePt,
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const scalar thisSign,
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const scalar tol,
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point& pt
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);
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public:
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// Static Member Functions
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//- Intersect triangle with parallel edges aligned with axis i0.
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// Returns true (and intersection in pInter) if any of them intersects
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// triangle. Used in intersectBb.
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static bool intersectAxesBundle
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(
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const point& V0,
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const point& V10,
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const point& V20,
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const label i0,
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const pointField& origin,
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const scalar maxLength,
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point& pInter
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);
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//- Intersect triangle with bounding box.
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// \return true if any bounding box faces intersect the triangle,
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// returns false if the triangle is inside the bounding box
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static bool intersectBb
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(
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const point& p0,
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const point& p1,
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const point& p2,
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const treeBoundBox& cubeBb
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);
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//- Intersect triangle with plane.
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// \return bool and set intersection segment.
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static bool intersect
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(
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const point& va0,
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const point& va10,
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const point& va20,
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const point& basePoint,
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const vector& normal,
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point& pInter0,
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point& pInter1
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);
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//- Intersection of two triangles intersect.
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// \return bool and set intersection segment.
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static bool intersect
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(
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const point& va0,
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const point& va10,
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const point& va20,
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const point& vb0,
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const point& vb10,
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const point& vb20,
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point& pInter0,
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point& pInter1
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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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#endif
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// ************************************************************************* //
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