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Panzer_VectorToScalar_decl.hpp
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4// Panzer: A partial differential equation assembly
5// engine for strongly coupled complex multiphysics systems
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42
43#ifndef PANZER_EVALUATOR_VECTOR_TO_SCALAR_DECL_HPP
44#define PANZER_EVALUATOR_VECTOR_TO_SCALAR_DECL_HPP
45
46#include <vector>
47#include <string>
48#include "Phalanx_Evaluator_Macros.hpp"
49#include "Phalanx_MDField.hpp"
51
52namespace panzer {
53
54template<typename EvalT, typename Traits>
56 :
57 public panzer::EvaluatorWithBaseImpl<Traits>,
58 public PHX::EvaluatorDerived<EvalT, Traits>
59{
60 public:
61
63 const Teuchos::ParameterList& p);
64
65 void
67 typename Traits::EvalData d);
68
69 private:
70
71 using ScalarT = typename EvalT::ScalarT;
72
73 std::vector< PHX::MDField<ScalarT,Cell,Point> > scalar_fields;
74 PHX::MDField<const ScalarT,Cell,Point,Dim> vector_field;
75
76public:
77
81 VectorToScalar(const PHX::FieldTag & input,
82 const std::vector<PHX::Tag<ScalarT>> & output);
83
84}; // end of class VectorToScalar
85
86
99template <typename EvalT,typename Traits>
100Teuchos::RCP<PHX::Evaluator<Traits> > vectorToScalarEvaluator(const std::string & vectorName,
101 const std::string & scalarPrefix,
102 const std::vector<std::string> & postfix,
103 const Teuchos::RCP<const PHX::DataLayout> & vectorLayout,
104 const Teuchos::RCP<const PHX::DataLayout> & scalarLayout)
105{
106 using Teuchos::RCP;
107 using Teuchos::rcp;
108 using Teuchos::rcp_const_cast;
109
110 RCP<std::vector<std::string> > scalarNames = rcp(new std::vector<std::string>);
111 for(std::size_t i=0;i<postfix.size();i++)
112 scalarNames->push_back(scalarPrefix+postfix[i]);
113
114 Teuchos::ParameterList input;
115 input.set("Vector Name",vectorName);
116 input.set("Scalar Names",scalarNames.getConst());
117 input.set("Data Layout Vector",rcp_const_cast<PHX::DataLayout>(vectorLayout));
118 input.set("Data Layout Scalar",rcp_const_cast<PHX::DataLayout>(scalarLayout));
119
120 return rcp(new VectorToScalar<EvalT,Traits>(input));
121}
122
134template <typename EvalT,typename Traits>
135Teuchos::RCP<PHX::Evaluator<Traits> > vectorToScalarEvaluator(const std::string & vectorName,
136 const std::vector<std::string> & postfix,
137 const Teuchos::RCP<const PHX::DataLayout> & vectorLayout,
138 const Teuchos::RCP<const PHX::DataLayout> & scalarLayout)
139{
140 return vectorToScalarEvaluator<EvalT,Traits>(vectorName,vectorName,postfix,vectorLayout,scalarLayout);
141}
142
143}
144
145#endif
Wrapper to PHX::EvaluatorWithBaseImpl that implements Panzer-specific helpers.
PHX::MDField< const ScalarT, Cell, Point, Dim > vector_field
void evaluateFields(typename Traits::EvalData d)
typename EvalT::ScalarT ScalarT
std::vector< PHX::MDField< ScalarT, Cell, Point > > scalar_fields
Teuchos::RCP< PHX::Evaluator< Traits > > vectorToScalarEvaluator(const std::string &vectorName, const std::string &scalarPrefix, const std::vector< std::string > &postfix, const Teuchos::RCP< const PHX::DataLayout > &vectorLayout, const Teuchos::RCP< const PHX::DataLayout > &scalarLayout)