File size: 4,074 Bytes
5a600cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | /*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2019-2026 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::Function1s::reverseRamp
Description
A wrapper class to reverse any ramp function such that the result starts
from 1 decreasing to 0 from \c start over the \c duration and remaining at 0
thereafter.
Usage
For scaling a vector:
\verbatim
<name>
{
scale
{
type reverseRamp;
ramp linearRamp;
start 0;
duration 10;
}
value
{
type sine;
frequency 10;
amplitude 1;
scale (1 0.1 0);
level (10 1 0);
}
}
\endverbatim
See also
Foam::Function1s::Ramp
SourceFiles
reverseRamp.C
\*---------------------------------------------------------------------------*/
#ifndef reverseRamp_H
#define reverseRamp_H
#include "Ramp.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace Function1s
{
/*---------------------------------------------------------------------------*\
Class reverseRamp Declaration
\*---------------------------------------------------------------------------*/
class reverseRamp
:
public Ramp<reverseRamp>
{
// Private Data
//- Standard ramp function to reverse
autoPtr<Function1<scalar>> ramp_;
public:
// Runtime type information
TypeName("reverseRamp");
// Constructors
//- Construct from name and dictionary
reverseRamp
(
const word& name,
const unitSets& units,
const dictionary& dict
);
//- Copy constructor
reverseRamp(const reverseRamp& rr);
//- Destructor
virtual ~reverseRamp();
// Member Functions
//- Return the value at a scalar coordinate
virtual inline scalar value(const scalar t) const;
//- Return the derivative at a scalar coordinate
virtual inline scalar derivative(const scalar t) const;
//- Return the integral between two scalar coordinates
virtual inline scalar integral
(
const scalar t1,
const scalar t2
) const;
//- Write data to dictionary stream
virtual void write(Ostream& os, const unitSets& units) const;
// Member Operators
//- Disallow default bitwise assignment
void operator=(const reverseRamp&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Function1s
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#include "reverseRampI.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
|