gradingDescriptor.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2015 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
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    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::gradingDescriptor
 
Description
    Handles the specification for grading within a section of a block
 
    blockFraction: the fraction of the block the section occupies
 
    nDivFraction: the fraction of the divisions of the block allocated to
        the section
 
    expansionRatio: the expansions ratio for the grading with the section of
        block defined as the ratio of the size of the division at either and
        of the section.
 
SourceFiles
    gradingDescriptor.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef gradingDescriptor_H
#define gradingDescriptor_H
 
#include "scalar.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class Istream;
class Ostream;
 
// Forward declaration of friend functions and operators
class gradingDescriptor;
class gradingDescriptors;
Istream& operator>>(Istream&, gradingDescriptor&);
Ostream& operator<<(Ostream&, const gradingDescriptor&);
 
/*---------------------------------------------------------------------------*\
                     Class gradingDescriptor Declaration
\*---------------------------------------------------------------------------*/
 
class gradingDescriptor
{
    // Private data
 
        scalar blockFraction_;
        scalar nDivFraction_;
        scalar expansionRatio_;
 
 
public:
 
    friend class gradingDescriptors;
 
 
    // Constructors
 
        //- Default constructor
        gradingDescriptor();
 
        //- Construct from components
        gradingDescriptor
        (
            const scalar blockFraction,
            const scalar nDivFraction,
            const scalar expansionRatio
        );
 
        //- Construct from expansionRatio
        gradingDescriptor
        (
            const scalar expansionRatio
        );
 
        //- Construct from Istream
        gradingDescriptor(Istream&);
 
 
    //- Destructor
    ~gradingDescriptor();
 
 
    // Member Functions
 
        // Access
 
            scalar blockFraction() const
            {
                return blockFraction_;
            }
 
            scalar nDivFraction() const
            {
                return nDivFraction_;
            }
 
            scalar expansionRatio() const
            {
                return expansionRatio_;
            }
 
 
    // Member functions
 
        //- Return the inverse gradingDescriptor with 1/expansionRatio
        gradingDescriptor inv() const;
 
 
    // Member operators
 
        bool operator==(const gradingDescriptor&) const;
        bool operator!=(const gradingDescriptor&) const;
 
 
    // IOstream Operators
 
        friend Istream& operator>>(Istream&, gradingDescriptor&);
        friend Ostream& operator<<(Ostream&, const gradingDescriptor&);
 
        friend Istream& operator>>(Istream&, gradingDescriptors&);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //