temperature_function.h

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/*
  Copyright (C) 2011 - 2025 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_solution_temperature_function_h
#define _aspect_prescribed_solution_temperature_function_h

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

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

namespace aspect
{
  namespace PrescribedSolution
  {

    template <int dim>
    class TemperatureFunction : public Interface<dim>, public SimulatorAccess<dim>
    {
      public:

        TemperatureFunction ();

        void update () override;

        static
        void
        declare_parameters (ParameterHandler &prm);

        void
        parse_parameters (ParameterHandler &prm) override;

        void constrain_solution (const typename DoFHandler<dim>::active_cell_iterator &cell,
                                 const std::vector<Point<dim>> &positions,
                                 const std::vector<unsigned int> &component_indices,
                                 std::vector<bool> &should_be_constrained,
                                 std::vector<double> &solution) override;

      private:
        Functions::ParsedFunction<dim> prescribed_temperature_indicator_function;

        Functions::ParsedFunction<dim> prescribed_temperature_function;

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

#endif