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: ScalarFunctionConstant.hpp,v 1.3 2006/10/28 12:26:54 delpinux Exp $ 00019 00020 #ifndef SCALAR_FUNCTION_CONSTANT_HPP 00021 #define SCALAR_FUNCTION_CONSTANT_HPP 00022 00023 #include <Types.hpp> 00024 #include <ScalarFunctionBase.hpp> 00025 00034 class ScalarFunctionConstant 00035 : public ScalarFunctionBase 00036 { 00037 private: 00038 const real_t __value; 00040 protected: 00048 std::ostream& __put(std::ostream& os) const 00049 { 00050 os << __value; 00051 return os; 00052 } 00053 00054 public: 00060 real_t operator()(const TinyVector<3, real_t>& X) const 00061 { 00062 return __value; 00063 } 00064 00070 bool canBeSimplified() const 00071 { 00072 return true; 00073 } 00074 00080 ScalarFunctionConstant(const real_t& value) 00081 : ScalarFunctionBase(ScalarFunctionBase::constant), 00082 __value(value) 00083 { 00084 ; 00085 } 00086 00091 ~ScalarFunctionConstant() 00092 { 00093 ; 00094 } 00095 }; 00096 00097 #endif // SCALAR_FUNCTION_CONSTANT_HPP
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