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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2012-2025 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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for more details.
You should have received a copy of the GNU General Public License
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Class
Foam::tetOverlapVolume
Description
Calculates the overlap volume of two cells using tetrahedral decomposition
SourceFiles
tetOverlapVolume.C
\*---------------------------------------------------------------------------*/
#ifndef tetOverlapVolume_H
#define tetOverlapVolume_H
#include "FixedList.H"
#include "labelList.H"
#include "treeBoundBox.H"
#include "tetPointRef.H"
namespace Foam
{
class primitiveMesh;
class polyMesh;
/*---------------------------------------------------------------------------*\
Class tetOverlapVolume Declaration
\*---------------------------------------------------------------------------*/
class tetOverlapVolume
{
// Private Member Functions
//- Tet overlap volume
scalar tetTetOverlapVol
(
const tetPointRef& tetA,
const tetPointRef& tetB
) const;
//- Return a const treeBoundBox
treeBoundBox pyrBb
(
const pointField& points,
const face& f,
const point& fc
) const;
// Private classes
//- A fixed list of tets which simulates a dynamic list by incrementing
// a counter whenever its append method is called. This is used as an
// optimisation for the tetTetOverlapVol method.
template<unsigned Size>
class cutTetList
:
public FixedList<FixedList<point, 4>, Size>
{
private:
//- The number of stored elements
label n_;
public:
//- Construct null
cutTetList()
:
n_(0)
{}
//- Clear the array
void clear()
{
n_ = 0;
}
//- Get the current size
label size() const
{
return n_;
}
//- Add a new tet to the end of the array
void append(const FixedList<point, 4>& t)
{
this->operator[](n_) = t;
++ n_;
}
};
public:
//- Runtime type information
ClassName("tetOverlapVolume");
// Constructors
//- Null constructor
tetOverlapVolume();
// Public members
//- Calculates the cell volume
scalar cellVolumeMinDecomp
(
const primitiveMesh& mesh,
const label celli
) const;
//- Return true if olverlap volume is greater than threshold
bool cellCellOverlapMinDecomp
(
const primitiveMesh& meshA,
const label cellAI,
const primitiveMesh& meshB,
const label cellBI,
const treeBoundBox& cellBbB,
const scalar threshold = 0.0
) const;
//- Calculates the overlap volume
scalar cellCellOverlapVolumeMinDecomp
(
const primitiveMesh& meshA,
const label cellAI,
const primitiveMesh& meshB,
const label cellBI,
const treeBoundBox& cellBbB
) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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