00001 /* @HEADER@ */ 00002 // ************************************************************************ 00003 // 00004 // Sundance 00005 // Copyright (2005) Sandia Corporation 00006 // 00007 // Copyright (year first published) Sandia Corporation. Under the terms 00008 // of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 00009 // retains certain rights in this software. 00010 // 00011 // This library is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Lesser General Public License as 00013 // published by the Free Software Foundation; either version 2.1 of the 00014 // License, or (at your option) any later version. 00015 // 00016 // This library is distributed in the hope that it will be useful, but 00017 // WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 // Lesser General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Lesser General Public 00022 // License along with this library; if not, write to the Free Software 00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00024 // USA 00025 // Questions? Contact Kevin Long (krlong@sandia.gov), 00026 // Sandia National Laboratories, Livermore, California, USA 00027 // 00028 // ************************************************************************ 00029 /* @HEADER@ */ 00030 00031 #ifndef SUNDANCE_COORDEXPR_H 00032 #define SUNDANCE_COORDEXPR_H 00033 00034 #include "SundanceEvaluatorFactory.hpp" 00035 #include "SundanceCoordExprEvaluator.hpp" 00036 00037 namespace Sundance 00038 { 00039 using namespace Sundance; 00040 using namespace Sundance; 00041 00042 /** 00043 * CoordExpr is an 00044 * expression that returns one of the cartesian coordinates for 00045 * each point at which it evaluated. Which coordinate (i.e., \f$x\f$, 00046 * \f$y\f$, or \f$z\f$) to be represented is specified by the first 00047 * argement to the constructor. 00048 */ 00049 class CoordExpr : public EvaluatableExpr, 00050 public GenericEvaluatorFactory<CoordExpr, CoordExprEvaluator> 00051 { 00052 public: 00053 /** */ 00054 CoordExpr(int dir, const std::string& name=""); 00055 00056 /** */ 00057 virtual ~CoordExpr() {;} 00058 00059 /** */ 00060 virtual XMLObject toXML() const ; 00061 00062 /** */ 00063 int dir() const {return dir_;} 00064 00065 /** */ 00066 const std::string& name() const {return name_;} 00067 00068 /** Write a simple text description suitable 00069 * for output to a terminal */ 00070 virtual std::ostream& toText(std::ostream& os, bool paren) const 00071 {os<<name(); return os;} 00072 00073 /** */ 00074 virtual Set<MultipleDeriv> 00075 internalFindW(int order, const EvalContext& context) const ; 00076 00077 /** */ 00078 virtual Set<MultipleDeriv> 00079 internalFindC(int order, const EvalContext& context) const ; 00080 00081 /** */ 00082 virtual Set<MultipleDeriv> 00083 internalFindV(int order, const EvalContext& context) const ; 00084 00085 /** */ 00086 virtual RCP<ExprBase> getRcp() {return rcp(this);} 00087 00088 /** Ordering operator for use in transforming exprs to standard form */ 00089 virtual bool lessThan(const ScalarExpr* other) const ; 00090 00091 static std::string coordName(int dir, const std::string& name); 00092 00093 private: 00094 int dir_; 00095 std::string name_; 00096 }; 00097 } 00098 00099 #endif