function.h

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// ------------------------------------------------------
//
// SPDX-License-Identifier: GPL-2.0-or-later
//
// SPDX-FileCopyrightText: Copyright (C) 2014-2026 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_boundary_temperature_function_h
#define _aspect_boundary_temperature_function_h

#include <aspect/boundary_temperature/interface.h>
#include <aspect/simulator_access.h>
#include <aspect/utilities.h>

#include <deal.II/base/parsed_function.h>

namespace aspect
{
  namespace BoundaryTemperature
  {
    template <int dim>
    class Function : public Interface<dim>, public SimulatorAccess<dim>
    {
      public:
        Function ();

        double
        boundary_temperature (const types::boundary_id boundary_indicator,
                              const Point<dim> &position) const override;

        void update () override;

        double minimal_temperature (const std::set<types::boundary_id> &fixed_boundary_ids) const override;

        double maximal_temperature (const std::set<types::boundary_id> &fixed_boundary_ids) const override;


        static
        void
        declare_parameters (ParameterHandler &prm);

        void
        parse_parameters (ParameterHandler &prm) override;

      private:
        Functions::ParsedFunction<dim> boundary_temperature_function;

        double min_temperature;

        double max_temperature;

        Utilities::Coordinates::CoordinateSystem coordinate_system;
    };
  }
}


#endif