function.h

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/*
  Copyright (C) 2011 - 2019 by the authors of the ASPECT code.
 
  This file is part of ASPECT.
 
  ASPECT is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2, or (at your option)
  any later version.
 
  ASPECT 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 General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with ASPECT; see the file LICENSE.  If not see
  <http://www.gnu.org/licenses/>.
*/
 
 
#ifndef _aspect_prescribed_stokes_solution_function_h
#define _aspect_prescribed_stokes_solution_function_h
 
#include <aspect/prescribed_stokes_solution/interface.h>
#include <aspect/simulator_access.h>
 
#include <deal.II/base/parsed_function.h>
 
namespace aspect
{
  namespace PrescribedStokesSolution
  {
    template <int dim>
    class Function : public Interface<dim>, public SimulatorAccess<dim>
    {
      public:
        Function ();
 
        void
        stokes_solution (const Point<dim> &position, Vector<double> &value) const override;
 
        void
        update () override;
 
        static
        void
        declare_parameters (ParameterHandler &prm);
 
        void
        parse_parameters (ParameterHandler &prm) override;
 
      private:
        Functions::ParsedFunction<dim> prescribed_velocity_function;
        Functions::ParsedFunction<dim> prescribed_pressure_function;
        Functions::ParsedFunction<dim> prescribed_fluid_pressure_function;
        Functions::ParsedFunction<dim> prescribed_compaction_pressure_function;
        Functions::ParsedFunction<dim> prescribed_fluid_velocity_function;
    };
  }
}
 
 
#endif