bc_mesh.hh

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/*!
 *
 * Copyright (C) 2015 Technical University of Liberec.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation. (http://www.gnu.org/licenses/gpl-3.0.en.html)
 *
 * This program 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.
 *
 *
 * @file    bc_mesh.h
 * @brief
 */

#ifndef BC_MESH_H
#define BC_MESH_H


#include "mesh/mesh.h"

class Partitioning;
class Neighbour;


/**
 * \brief Class represents boundary part of mesh.
 *
 * Holds pointer to parent Mesh and overwrites methods, that allow access to boundary
 * elements and other functionality and structures necessary to work above boundary
 * part of mesh.
 */
class BCMesh : public Mesh {
public:
    /**
     * Constructor from parent (bulk) Mesh.
     */
    BCMesh(Mesh* parent_mesh);

    /// Destructor
    ~BCMesh();

    /// Returns range of boundary elements of parent mesh
    Range<ElementAccessor<3>> elements_range() const override;

    /// Returns count of boundary elements of parent mesh
    unsigned int n_elements(bool boundary=false) const override;

    /// Overwrite Mesh::get_part()
    Partitioning *get_part() override;

    /// Overwrite Mesh::get_local_part()
    const LongIdx *get_local_part() override;

    /// Overwrite Mesh::check_compatible_mesh()
    std::shared_ptr<std::vector<LongIdx>> check_compatible_mesh( Mesh & input_mesh) override;

    /// Overwrite Mesh::n_nodes()
    unsigned int n_nodes() const override;

    /// Overwrite Mesh::element_accessor()
    ElementAccessor<3> element_accessor(unsigned int idx) const override;

private:
    /// Pointer to parent (bulk) mesh
    Mesh *parent_mesh_;

    /// Distribution of boundary elements to processors
    LongIdx *local_part_;

};


#endif  //BC_MESH_H
//-----------------------------------------------------------------------------
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