Modifiers.hpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2010
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 
00029 #ifndef MODIFIERS_HPP_
00030 #define MODIFIERS_HPP_
00031 
00032 #include "AbstractModifier.hpp"
00033 #include <cmath>
00034 
00038 class FactorModifier : public AbstractModifier
00039 {
00040 private:
00042     double mFactor;
00043 
00044 public:
00049     FactorModifier(double factor=1)
00050         : mFactor(factor)
00051     {
00052     }
00053 
00060     virtual double Calc(double param, double time)
00061     {
00062         return (param * mFactor);
00063     }
00064 };
00065 
00071 class TimeModifier : public AbstractModifier
00072 {
00073 public:
00077     TimeModifier()
00078     {
00079     }
00080 
00087     virtual double Calc(double param, double time)
00088     {
00089         return param * sin(time);
00090     }
00091 };
00092 
00096 class FixedModifier : public AbstractModifier
00097 {
00098 private:
00100     double mValue;
00101 
00102 public:
00107     FixedModifier(double value)
00108         : mValue(value)
00109     {
00110     }
00111 
00119     virtual double Calc(double param, double time)
00120     {
00121         return mValue;
00122     }
00123 };
00124 
00128 class DummyModifier : public AbstractModifier
00129 {
00130 private:
00131 
00132 public:
00136     DummyModifier()
00137     {
00138     }
00139 
00146     virtual double Calc(double param, double time)
00147     {
00148         return param;
00149     }
00150 };
00151 
00152 
00153 #endif  //MODIFIERS_HPP_

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