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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::pointConstraint
Description
Accumulates point constraints through successive applications of the
applyConstraint function.
After all the constraints have been entered the resulting
transformation tensor is returned by the constraintTransformation
function.
SourceFiles
pointConstraintI.H
\*---------------------------------------------------------------------------*/
#ifndef pointConstraint_H
#define pointConstraint_H
#include "label.H"
#include "vector.H"
#include "Tuple2.H"
#include "transform.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class pointConstraint Declaration
\*---------------------------------------------------------------------------*/
class pointConstraint
:
public Tuple2<label, vector>
{
public:
// Constructors
//- Construct null
inline pointConstraint();
//- Construct from components
inline pointConstraint(const Tuple2<label, vector>&);
//- Construct from Istream
inline pointConstraint(Istream&);
// Member Functions
//- Apply and accumulate the effect of the given constraint direction
inline void applyConstraint(const vector& cd);
//- Combine constraints
inline void combine(const pointConstraint&);
//- Return the accumulated constraint transformation tensor
inline tensor constraintTransformation() const;
//- Return the accumulated unconstrained directions. Directions
// coded as first n rows of tensor.
inline void unconstrainedDirections(label& n, tensor& vecs) const;
//- Constrain a displacement
inline vector constrainDisplacement(const vector& disp) const;
};
//- Reduce operator
class combineConstraintsEqOp
{
public:
inline void operator()(pointConstraint&, const pointConstraint&) const;
};
//- Transformation function
inline pointConstraint transform(const tensor& tt, const pointConstraint& v);
//- contiguous
template<class T> bool contiguous();
template<>
inline bool contiguous<pointConstraint>() {return true;}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include "pointConstraintI.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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