vectorTensorTransform.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 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::vectorTensorTransform
 
Description
    Vector-tensor class used to perform translations and rotations in
    3D space.
 
SourceFiles
    vectorTensorTransformI.H
    vectorTensorTransform.C
    vectorTensorTransformTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef vectorTensorTransform_H
#define vectorTensorTransform_H
 
#include "tensor.H"
#include "word.H"
#include "contiguous.H"
#include "pointField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of friend functions and operators
 
class vectorTensorTransform;
Istream& operator>>(Istream& is, vectorTensorTransform&);
Ostream& operator<<(Ostream& os, const vectorTensorTransform& C);
 
 
/*---------------------------------------------------------------------------*\
                    Class vectorTensorTransform Declaration
\*---------------------------------------------------------------------------*/
 
class vectorTensorTransform
{
    // private data
 
        //- Translation vector
        vector t_;
 
        //- Rotation tensor
        tensor R_;
 
        //- Recording if the transform has non-identity transform to
        //  allow its calculation to be skipped, which is the majority
        //  of the expected cases
        bool hasR_;
 
 
public:
 
    // Static data members
 
        static const char* const typeName;
 
        static const vectorTensorTransform zero;
 
        static const vectorTensorTransform I;
 
 
    // Constructors
 
        //- Construct null
        inline vectorTensorTransform();
 
        //- Construct given a translation vector, rotation tensor and
        //  hasR bool
        inline vectorTensorTransform
        (
            const vector& t,
            const tensor& R,
            bool hasR = true
        );
 
        //- Construct a pure translation vectorTensorTransform given a
        //  translation vector
        inline explicit vectorTensorTransform(const vector& t);
 
        //- Construct a pure rotation vectorTensorTransform given a
        //  rotation tensor
        inline explicit vectorTensorTransform(const tensor& R);
 
        //- Construct from Istream
        vectorTensorTransform(Istream&);
 
 
    // Member functions
 
        // Access
 
            inline const vector& t() const;
 
            inline const tensor& R() const;
 
            inline bool hasR() const;
 
 
        // Edit
 
            inline vector& t();
 
            inline tensor& R();
 
 
        // Transform
 
            //- Transform the given position
            inline vector transformPosition(const vector& v) const;
 
            //- Transform the given pointField
            inline pointField transformPosition(const pointField& pts) const;
 
            //- Inverse transform the given position
            inline vector invTransformPosition(const vector& v) const;
 
            //- Inverse transform the given pointField
            inline pointField invTransformPosition(const pointField& pts) const;
 
            //- Transform the given field
            template<class Type>
            tmp<Field<Type> > transform(const Field<Type>&) const;
 
 
    // Member operators
 
        inline void operator=(const vectorTensorTransform&);
        inline void operator&=(const vectorTensorTransform&);
 
        inline void operator=(const vector&);
        inline void operator+=(const vector&);
        inline void operator-=(const vector&);
 
        inline void operator=(const tensor&);
        inline void operator&=(const tensor&);
 
 
    // IOstream operators
 
        friend Istream& operator>>(Istream& is, vectorTensorTransform&);
 
        friend Ostream& operator<<(Ostream& os, const vectorTensorTransform&);
};
 
 
// * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
//- Return the inverse of the given vectorTensorTransform
inline vectorTensorTransform inv(const vectorTensorTransform& tr);
 
 
//- Return a string representation of a vectorTensorTransform
word name(const vectorTensorTransform&);
 
 
//- Data associated with vectorTensorTransform type are contiguous
template<>
inline bool contiguous<vectorTensorTransform>() {return true;}
 
//- Template specialisations
template<>
tmp<Field<bool> > vectorTensorTransform::transform(const Field<bool>&) const;
template<>
tmp<Field<label> > vectorTensorTransform::transform(const Field<label>&) const;
template<>
tmp<Field<scalar> > vectorTensorTransform::transform(const Field<scalar>&)
const;
 
 
// * * * * * * * * * * * * * * * Global Operators  * * * * * * * * * * * * * //
 
inline bool operator==
(
    const vectorTensorTransform& tr1,
    const vectorTensorTransform& tr2
);
 
 
inline bool operator!=
(
    const vectorTensorTransform& tr1,
    const vectorTensorTransform& tr2
 
);
 
 
inline vectorTensorTransform operator+
(
    const vectorTensorTransform& tr,
    const vector& t
);
 
 
inline vectorTensorTransform operator+
(
    const vector& t,
    const vectorTensorTransform& tr
);
 
 
inline vectorTensorTransform operator-
(
    const vectorTensorTransform& tr,
    const vector& t
);
 
 
inline vectorTensorTransform operator&
(
    const vectorTensorTransform& tr1,
    const vectorTensorTransform& tr2
);
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "vectorTensorTransformI.H"
 
#ifdef NoRepository
#   include "vectorTensorTransformTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //