52e0ebca57
- single entry point to handle negative expansions etc. Reduces typos and forgotten code (as per #1841)
159 lines
4.3 KiB
C++
159 lines
4.3 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | www.openfoam.com
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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Copyright (C) 2015 OpenFOAM Foundation
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Copyright (C) 2019-2020 OpenCFD Ltd.
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::gradingDescriptor
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Description
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Handles the specification for grading within a section of a block
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The grading specification is handled is controlled by three parameters:
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- blockFraction: the fraction of the block the section occupies
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- nDivFraction: the fraction of the divisions of the block allocated to
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the section
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- expansionRatio:
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the expansion ratio for the grading with the section of
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block defined as the ratio of end-size / start-size for the section.
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A negative value is trapped and treated as its inverse.
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SourceFiles
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gradingDescriptor.C
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\*---------------------------------------------------------------------------*/
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#ifndef gradingDescriptor_H
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#define gradingDescriptor_H
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#include "scalar.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// Forward Declarations
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class Istream;
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class Ostream;
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class gradingDescriptor;
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class gradingDescriptors;
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Istream& operator>>(Istream&, gradingDescriptor&);
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Ostream& operator<<(Ostream&, const gradingDescriptor&);
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/*---------------------------------------------------------------------------*\
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Class gradingDescriptor Declaration
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\*---------------------------------------------------------------------------*/
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class gradingDescriptor
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{
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// Private Data
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scalar blockFraction_;
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scalar nDivFraction_;
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scalar expansionRatio_;
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public:
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// Friendship with gradingDescriptors
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friend class gradingDescriptors;
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// Constructors
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//- Default construct (1, 1, 1)
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gradingDescriptor();
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//- Construct from components
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gradingDescriptor
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(
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const scalar blockFraction,
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const scalar nDivFraction,
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const scalar expansionRatio
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);
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//- Construct from expansionRatio
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explicit gradingDescriptor(const scalar expansionRatio);
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//- Construct from Istream
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explicit gradingDescriptor(Istream& is);
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//- Destructor
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~gradingDescriptor() = default;
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// Member Functions
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scalar blockFraction() const
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{
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return blockFraction_;
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}
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scalar nDivFraction() const
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{
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return nDivFraction_;
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}
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scalar expansionRatio() const
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{
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return expansionRatio_;
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}
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//- Adjust expansion ratio.
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// Trap negative value and treat as its inverse.
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void correct();
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//- Return the inverse gradingDescriptor with 1/expansionRatio
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gradingDescriptor inv() const;
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// Member Operators
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bool operator==(const gradingDescriptor&) const;
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bool operator!=(const gradingDescriptor&) const;
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// IOstream Operators
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friend Istream& operator>>(Istream&, gradingDescriptor&);
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friend Ostream& operator<<(Ostream&, const gradingDescriptor&);
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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