spherical_shell.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_geometry_model_spherical_shell_h
#define _aspect_geometry_model_spherical_shell_h

#include <aspect/geometry_model/interface.h>
#include <aspect/simulator_access.h>

#include <deal.II/grid/manifold_lib.h>

namespace aspect
{
  namespace GeometryModel
  {
    using namespace dealii;

    template <int dim>
    class SphericalShell : public Interface<dim>, public SimulatorAccess<dim>
    {
      public:
        SphericalShell();

        void create_coarse_mesh (parallel::distributed::Triangulation<dim> &coarse_grid) const override;

        double length_scale () const override;

        double depth(const Point<dim> &position) const override;

        double height_above_reference_surface(const Point<dim> &position) const override;

        Point<dim> representative_point(const double depth) const override;

        double maximal_depth() const override;

        std::set<types::boundary_id>
        get_used_boundary_indicators () const override;

        std::map<std::string,types::boundary_id>
        get_symbolic_boundary_names_map () const override;

        std::set< std::pair< std::pair<types::boundary_id, types::boundary_id>, unsigned int> >
        get_periodic_boundary_pairs () const override;

        bool
        has_curved_elements() const override;

        bool
        point_is_in_domain(const Point<dim> &point) const override;

        aspect::Utilities::Coordinates::CoordinateSystem natural_coordinate_system() const override;

        std::array<double,dim> cartesian_to_natural_coordinates(const Point<dim> &position) const override;

        Point<dim> natural_to_cartesian_coordinates(const std::array<double,dim> &position) const override;


        static
        void
        declare_parameters (ParameterHandler &prm);

        void
        parse_parameters (ParameterHandler &prm) override;

        double
        inner_radius () const;

        double
        outer_radius () const;

        double
        opening_angle () const;

        void
        make_periodicity_constraints(const DoFHandler<dim> &dof_handler,
                                     AffineConstraints<double> &constraints) const override;

      private:
        enum CustomMeshRadialSubdivision
        {
          none,
          list,
          slices
        } custom_mesh;

        int initial_lateral_refinement;

        unsigned int n_slices;

        std::vector<double> R_values_list;

        double R0, R1;

        double phi;

        int n_cells_along_circumference;

        const SphericalManifold<dim> spherical_manifold;

        void set_manifold_ids (parallel::distributed::Triangulation<dim> &triangulation) const;

        bool periodic;
    };
  }
}


#endif