sixDoFRigidBodyMotionLineConstraint.H

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    Copyright (C) 2011-2014 OpenFOAM Foundation
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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.
 
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    for more details.
 
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Class
    Foam::sixDoFRigidBodyMotionConstraints::line
 
Description
    Translation constraint on the centre of rotation:
        may only move along a line.
 
    If 'centreOfRotation' is not provided in the dictionary the centre of mass
    is used.
 
SourceFiles
    sixDoFRigidBodyMotionLineConstraint.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sixDoFRigidBodyMotionLineConstraint_H
#define sixDoFRigidBodyMotionLineConstraint_H
 
#include "sixDoFRigidBodyMotionConstraint.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
namespace sixDoFRigidBodyMotionConstraints
{
 
/*---------------------------------------------------------------------------*\
                          Class line Declaration
\*---------------------------------------------------------------------------*/
 
class line
:
    public sixDoFRigidBodyMotionConstraint
{
    // Private data
 
        //- Centre of rotation on line
        point centreOfRotation_;
 
        //- Direction of the constraining line
        vector direction_;
 
 
public:
 
    //- Runtime type information
    TypeName("line");
 
 
    // Constructors
 
        //- Construct from components
        line
        (
            const word& name,
            const dictionary& sDoFRBMCDict,
            const sixDoFRigidBodyMotion& motion
        );
 
        //- Construct and return a clone
        virtual autoPtr<sixDoFRigidBodyMotionConstraint> clone() const
        {
            return autoPtr<sixDoFRigidBodyMotionConstraint>
            (
                new line(*this)
            );
        }
 
 
    //- Destructor
    virtual ~line();
 
 
    // Member Functions
 
        //- Set the centre of rotation to the projection of the
        //  centre of mass onto the line
        virtual void setCentreOfRotation(point&) const;
 
        //- Apply and accumulate translational constraints
        virtual void constrainTranslation(pointConstraint&) const;
 
        //- Apply and accumulate rotational constraints
        virtual void constrainRotation(pointConstraint&) const;
 
        //- Update properties from given dictionary
        virtual bool read(const dictionary& sDoFRBMCCoeff);
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace solidBodyMotionFunctions
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //