integrated_function.h

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//-----------------------------------------------------------------------bl-
//--------------------------------------------------------------------------
//
// GRINS - General Reacting Incompressible Navier-Stokes
//
// Copyright (C) 2014-2017 Paul T. Bauman, Roy H. Stogner
// Copyright (C) 2010-2013 The PECOS Development Team
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the Version 2.1 GNU Lesser General
// Public License as published by the Free Software Foundation.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc. 51 Franklin Street, Fifth Floor,
// Boston, MA  02110-1301  USA
//
//-----------------------------------------------------------------------el-


#ifndef GRINS_INTEGRATED_FUNCTION_H
#define GRINS_INTEGRATED_FUNCTION_H

// libMesh
#include "libmesh/quadrature.h"
#include "libmesh/exact_solution.h"

// GRINS
#include "grins/qoi_base.h"
#include "grins/variable_name_defaults.h"
#include "grins/rayfire_mesh.h"
#include "grins/fem_function_and_derivative_base.h"

namespace GRINS
{


  template<typename Function>
  class IntegratedFunction : public QoIBase
  {
  public:

    IntegratedFunction(unsigned int p_level, SharedPtr<Function> f, RayfireMesh * rayfire, const std::string & qoi_name);


    IntegratedFunction(const GetPot & input, unsigned int p_level, SharedPtr<Function> f, const std::string & input_qoi_string, const std::string & qoi_name);


    IntegratedFunction(const IntegratedFunction & original);

    virtual QoIBase* clone() const;

    virtual bool assemble_on_interior() const;

    virtual bool assemble_on_sides() const;

    virtual void element_qoi( AssemblyContext & context,
                              const unsigned int qoi_index );


    virtual void element_qoi_derivative( AssemblyContext & context,
                                         const unsigned int qoi_index );

    virtual void init( const GetPot & input,
                       const MultiphysicsSystem & system,
                       unsigned int qoi_num );

    virtual void reinit(MultiphysicsSystem & system);

    const RayfireMesh & get_rayfire()
    {
      return *(_rayfire.get());
    }

  private:
    unsigned int _p_level;

    SharedPtr<Function> _f;

    libMesh::UniquePtr<RayfireMesh> _rayfire;

    libMesh::Real qoi_value(Function & f, AssemblyContext & context, const libMesh::Point & xyz);

    void qoi_derivative(Function & f, AssemblyContext & context, const libMesh::Point & qp_xyz,
                        const libMesh::Real JxW, const unsigned int qoi_index);

    IntegratedFunction();

  };

  template<typename Function>
  inline
  bool IntegratedFunction<Function>::assemble_on_interior() const
  {
    return true;
  }

  template<typename Function>
  inline
  bool IntegratedFunction<Function>::assemble_on_sides() const
  {
    return false;
  }
}
#endif //GRINS_INTEGRATED_FUNCTION_H