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DerivStencil.H

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00001 /* _______              __
00002   / ___/ /  ___  __ _  / /  ___
00003  / /__/ _ \/ _ \/  ' \/ _ \/ _ \
00004  \___/_//_/\___/_/_/_/_.__/\___/ 
00005 */
00006 //
00007 // This software is copyright (C) by the Lawrence Berkeley
00008 // National Laboratory.  Permission is granted to reproduce
00009 // this software for non-commercial purposes provided that
00010 // this notice is left intact.
00011 // 
00012 // It is acknowledged that the U.S. Government has rights to
00013 // this software under Contract DE-AC03-765F00098 between
00014 // the U.S.  Department of Energy and the University of
00015 // California.
00016 //
00017 // This software is provided as a professional and academic
00018 // contribution for joint exchange. Thus it is experimental,
00019 // is provided ``as is'', with no warranties of any kind
00020 // whatsoever, no support, no promise of updates, or printed
00021 // documentation. By using this software, you acknowledge
00022 // that the Lawrence Berkeley National Laboratory and
00023 // Regents of the University of California shall have no
00024 // liability with respect to the infringement of other
00025 // copyrights by any part of this software.
00026 //
00027 
00028 #ifndef _Deriv_Stencil_H_
00029 #define _Deriv_Stencil_H_
00030 
00031 #include <iostream>
00032 #include <math.h>
00033 #include <assert.h>
00034 #include <stdlib.h>
00035 #include "REAL.H"
00036 #include "IntVect.H"
00037 #include "Vector.H"
00038 
00040 
00051 class DerivStencil
00052 {
00053 public:
00055   void define();
00056 
00058 
00060   bool isDefined() const
00061   {return isdefined;}
00062 
00064 
00067   DerivStencil();
00068 
00070 
00073   DerivStencil(const DerivStencil& a_dsin);
00074 
00076   ~DerivStencil();
00077 
00079 
00082   void clear();
00083 
00085 
00088   int size() const;
00089 
00091 
00094   const IntVect& getIndex(int a_ivec) const;
00095 
00097 
00100   const Real& getWeight(int a_ivec) const;
00101 
00103 
00108   void accumulate(const IntVect& a_iv,  Real a_weight);
00109 
00111 
00114   const DerivStencil& operator=(const DerivStencil& a_dsin);
00115 
00117 
00121   const DerivStencil& operator*=(Real a_facin);
00122 
00124 
00131   const DerivStencil& operator/=(Real a_denom);
00132 
00134 
00138   const DerivStencil& operator+=(Real a_facin);
00139 
00141 
00145   const DerivStencil& operator-=(Real a_facin);
00146 
00147 protected:
00149   Vector<IntVect> m_vectIV;
00151   Vector<Real>          m_vectWgt;
00153   bool isdefined;
00154 };
00155 
00156 
00157 
00158 #endif

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