Panzer_SubcellSum_decl.hpp

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// @HEADER
// *****************************************************************************
//           Panzer: A partial differential equation assembly
//       engine for strongly coupled complex multiphysics systems
//
// Copyright 2011 NTESS and the Panzer contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef __Panzer_SubcellSum_decl_hpp__
#define __Panzer_SubcellSum_decl_hpp__

#include <string>

#include "PanzerDiscFE_config.hpp"
#include "Panzer_Dimension.hpp"
#include "Panzer_FieldPattern.hpp"

#include "Phalanx_Evaluator_Macros.hpp"
#include "Phalanx_MDField.hpp"

#include "Panzer_Evaluator_Macros.hpp"

namespace panzer {
    
template<typename EvalT, typename Traits>
class SubcellSum
  :
  public panzer::EvaluatorWithBaseImpl<Traits>,
  public PHX::EvaluatorDerived<EvalT, Traits>
{
  public:

    SubcellSum(
      const Teuchos::ParameterList& p);

    void
    evaluateFields(
      typename Traits::EvalData d);

  private:

    using ScalarT = typename EvalT::ScalarT;
  
  PHX::MDField<ScalarT,Cell> outField;  // result
    
  PHX::MDField<const ScalarT,Cell,BASIS> inField; // function to be integrated

  double multiplier;

public:

  const PHX::FieldTag & getFieldTag() const 
  { return outField.fieldTag(); }

private:
  Teuchos::RCP<Teuchos::ParameterList> getValidParameters() const;
 
  // This is used to lookup closure indices (local Ids that live on a subcell)
  Teuchos::RCP<const panzer::FieldPattern> fieldPattern_;
  
  // evalaute on the "closure" of the indicated sub-cells
  bool evaluateOnClosure_;

}; // end of class SubcellSum


}

#endif