MultiMeshFunctionSpace.h

// Copyright (C) 2013-2016 Anders Logg
//
// This file is part of DOLFIN.
//
// DOLFIN is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// DOLFIN 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
//
// First added:  2013-08-05
// Last changed: 2017-09-22

#ifndef __MULTI_MESH_FUNCTION_SPACE_H
#define __MULTI_MESH_FUNCTION_SPACE_H

#include <vector>
#include <map>
#include <memory>

#include <dolfin/common/types.h>
#include <dolfin/common/Variable.h>
#include <dolfin/mesh/MultiMesh.h>

namespace dolfin
{

  // Forward declarations
  class GenericMatrix;
  class GenericVector;
  class FunctionSpace;
  class MultiMeshDofMap;


  class MultiMeshFunctionSpace : public Variable
  {
  public:

    MultiMeshFunctionSpace(std::shared_ptr<const MultiMesh> multimesh);

    ~MultiMeshFunctionSpace();

    std::size_t dim() const;

    std::shared_ptr<const MultiMesh> multimesh() const;

    std::shared_ptr<const MultiMeshDofMap> dofmap() const;

    std::size_t num_parts() const;

    std::shared_ptr<const FunctionSpace> part(std::size_t i) const;

    std::shared_ptr<const FunctionSpace> view(std::size_t i) const;

    void add(std::shared_ptr<const FunctionSpace> function_space);

    void build();

    void build(const std::vector<dolfin::la_index>& offsets);

    void lock_inactive_dofs(GenericMatrix &A, GenericVector &b) const;

  private:

    // Friends
    friend class MultiMeshSubSpace;

    // List of function spaces
    std::vector<std::shared_ptr<const FunctionSpace> > _function_spaces;

    // List of function space views
    std::vector<std::shared_ptr<const FunctionSpace> > _function_space_views;

    // Multimesh
    std::shared_ptr<const MultiMesh> _multimesh;

    // Multimesh dofmap
    std::shared_ptr<MultiMeshDofMap> _dofmap;

    // Quadrature order
    std::size_t _quadrature_order;

    // Build multimesh
    void _build_multimesh();

    // Build dofmap
    void _build_dofmap(const std::vector<dolfin::la_index>& offsets);

    // Build views
    void _build_views();

  };

}

#endif