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piecewiseconstantspeed.hxx

00001 // Copyright (C) 2002-2004 Vivien Mallet
00002 //
00003 // This file is part of Multivac library.
00004 // Multivac library provides front-tracking algorithms.
00005 // 
00006 // Multivac is free software; you can redistribute it and/or modify
00007 // it under the terms of the GNU General Public License as published by
00008 // the Free Software Foundation; either version 2 of the License, or
00009 // (at your option) any later version.
00010 // 
00011 // Multivac is distributed in the hope that it will be useful,
00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014 // GNU General Public License (file "license") for more details.
00015 //
00016 // For more information, please see the Multivac home page:
00017 //     http://spacetown.free.fr/fronts/
00018 
00019 
00020 #ifndef FILE_SPEEDFUNCTIONS_PIECEWISECONSTANTSPEED_HXX
00021 
00022 
00023 #include "../errors.cxx"
00024 #include <stdio.h>
00025 
00026 
00027 namespace Multivac
00028 {
00029 
00030 
00032   // PIECEWISECONSTANTSPEED //
00034 
00036 
00050   template <class T>
00051   class CPiecewiseConstantSpeed: public CSpeedFunction<T>
00052   {
00053 
00054 
00055     /**************
00056      * ATTRIBUTES *
00057      **************/
00058 
00059   protected:
00060 
00062     T SpeedRate;
00064     T SpeedRate0;
00065 
00067     T Limit;
00069     int LimitIndex;
00070 
00071 
00072     /*****************************
00073      * CONSTRUCTORS & DESTRUCTOR *
00074      *****************************/
00075 
00076   public:
00077 
00078     CPiecewiseConstantSpeed()  throw();
00079     CPiecewiseConstantSpeed(T SpeedRate_, T SpeedRate0_, T Limit_)  throw();
00080 
00081     ~CPiecewiseConstantSpeed()  throw();
00082 
00083 
00084     /***********
00085      * METHODS *
00086      ***********/
00087 
00088   public:
00089   
00090     virtual void Init(CMesh<T>& Mesh);
00091 
00092     virtual inline T operator() (T x, T y, T time) const;
00093     virtual inline T operator() (T x, T y, T time,
00094                                  T nx, T ny, T curvature) const;
00095 
00096     virtual T GetMaxF1(T Xmin, T Xmax, T Ymin, T Ymax, T norm2) const;
00097     virtual T GetMaxF2(T Xmin, T Xmax, T Ymin, T Ymax, T norm2) const;
00098 
00099     virtual inline T operator() (int i, int j) const;
00100 
00101     virtual T GetDerivatives(T x, T y, T nx, T ny, T t,
00102                              T& dFdp, T& dFdx, T& dFdy,
00103                              T& dFdnx, T& dFdny) const;
00104     virtual T Get2ndDerivatives(T x, T y, T nx, T ny, T t,
00105                                 T& dFdpdp, T& dFdpdx, T& dFdpdy,
00106                                 T& dFdpdnx, T& dFdpdny,
00107                                 T& dFdxdx, T& dFdxdy,
00108                                 T& dFdxdnx, T& dFdxdny,
00109                                 T& dFdydy, T& dFdydnx,
00110                                 T& dFdydny, T& dFdnxdnx,
00111                                 T& dFdnxdny, T& dFdnydny) const;
00112 
00113   };  // CPiecewiseConstantSpeed.
00114 
00115 
00116 }  // namespace Multivac.
00117 
00118 
00119 #define FILE_MESHES_PIECEWISECONSTANTSPEED_HXX
00120 #endif

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