00001 // This file is part of ff3d - http://www.freefem.org/ff3d 00002 // Copyright (C) 2001, 2002, 2003 Stéphane Del Pino 00003 00004 // This program is free software; you can redistribute it and/or modify 00005 // it under the terms of the GNU General Public License as published by 00006 // the Free Software Foundation; either version 2, or (at your option) 00007 // any later version. 00008 00009 // This program is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 // GNU General Public License for more details. 00013 00014 // You should have received a copy of the GNU General Public License 00015 // along with this program; if not, write to the Free Software Foundation, 00016 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 00018 // $Id: ScalarFunctionDerivative.hpp,v 1.4 2007/05/01 13:15:32 delpinux Exp $ 00019 00020 #ifndef SCALAR_FUNCTION_DERIVATIVE_HPP 00021 #define SCALAR_FUNCTION_DERIVATIVE_HPP 00022 00023 #include <ScalarFunctionBase.hpp> 00024 #include <ReferenceCounting.hpp> 00025 00035 class ScalarFunctionDerivative 00036 : public ScalarFunctionBase 00037 { 00038 public: 00039 enum Direction { 00040 x, 00041 y, 00042 z 00043 }; 00044 00045 private: 00046 const Direction __direction; 00047 ConstReferenceCounting<ScalarFunctionBase> 00048 __functionToDerive; 00057 std::ostream& __put(std::ostream& os) const; 00058 00059 public: 00065 real_t operator()(const TinyVector<3,real_t>& X) const; 00066 00072 bool canBeSimplified() const 00073 { 00074 return false; 00075 } 00076 00083 ScalarFunctionDerivative(const ScalarFunctionDerivative::Direction& direction, 00084 ConstReferenceCounting<ScalarFunctionBase> functionToDerive); 00085 00091 ScalarFunctionDerivative(const ScalarFunctionDerivative& f); 00092 00097 ~ScalarFunctionDerivative(); 00098 }; 00099 00100 #endif // SCALAR_FUNCTION_DERIVATIVE_HPP
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