Panzer_PointValues.hpp

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//           Panzer: A partial differential equation assembly
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#ifndef PANZER_POINT_VALUES_HPP
#define PANZER_POINT_VALUES_HPP

#include "Panzer_config.hpp"
#include "Panzer_PointRule.hpp"
#include "Panzer_ArrayTraits.hpp"

#include "Teuchos_RCP.hpp"

#include "Intrepid_CellTools.hpp"

namespace panzer {

  template <typename Scalar,typename Array>
  struct PointValues {
    typedef typename ArrayTraits<Scalar,Array>::size_type size_type;
    
    template <typename ArrayFactory>
    void setupArrays(const Teuchos::RCP<const panzer::PointRule>& pr,const ArrayFactory & af);

    template <typename NodeCoordinateArray,typename PointCoordinateArray>
    inline void evaluateValues(const NodeCoordinateArray & node_coordinates,const PointCoordinateArray & point_coordinates);

    template <typename CoordinateArray>
    void copyNodeCoords(const CoordinateArray& in_node_coords);

    template <typename CoordinateArray>
    void copyPointCoords(const CoordinateArray& in_point_coords);

    Array coords_ref;          // <Point,Dim>
    Array node_coordinates;    // <Cell,NODE,Dim>
    Array jac;                 // <Cell,Point,Dim,Dim>
    Array jac_inv;             // <Cell,Point,Dim,Dim>
    Array jac_det;             // <Cell,Point>

    // cell points
    Array point_coords;      // <Cell,Point,Dim>

    Teuchos::RCP<const panzer::PointRule> point_rule;
  };

  template <typename Scalar,typename Array>
  template <typename NodeCoordinateArray,typename PointCoordinateArray>
  void PointValues<Scalar,Array>::
  evaluateValues(const NodeCoordinateArray& in_node_coords,
                 const PointCoordinateArray & in_point_coords)
  {
    if (point_rule->isSide()) {
       TEUCHOS_ASSERT(false); // not implemented!!!!
    }
    
    copyPointCoords(in_point_coords);
    copyNodeCoords(in_node_coords);
    
    Intrepid::CellTools<Scalar> cell_tools;
    
    cell_tools.setJacobian(jac, coords_ref, node_coordinates,*(point_rule->topology));
    cell_tools.setJacobianInv(jac_inv, jac);
    cell_tools.setJacobianDet(jac_det, jac);
    
    // IP coordinates
    cell_tools.mapToPhysicalFrame(point_coords, coords_ref, node_coordinates, *(point_rule->topology));
  }

} // namespace panzer

#endif