function.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2011-2026 by the ASPECT authors.
//
// This file is part of ASPECT.
//
// Detailed license information governing the source code and
// contributions can be found in the folder LICENSES and in
// LICENSE and CONTRIBUTING.md at the top level directory.
//
// ------------------------------------------------------


#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 <aspect/utilities.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;
        Utilities::Coordinates::CoordinateSystem coordinate_system;
    };
  }
}


#endif