mesh_object.h

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/*
 * Copyright (c) 2013-2014:  G-CSC, Goethe University Frankfurt
 * Author: Sebastian Reiter
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#ifndef __H__UG__mesh_object__
#define __H__UG__mesh_object__
 
#include "lib_grid/grid/grid.h"
#include "lib_grid/common_attachments.h"
#include "lib_grid/selector.h"
#include "lib_grid/subset_handler.h"
#include "lib_grid/algorithms/remeshing/edge_length_adjustment.h"
 
namespace ug{
namespace promesh{
 
 
class MeshObject
{
  public:
    typedef APosition position_attachment_t;
    typedef Grid::VertexAttachmentAccessor<position_attachment_t> position_accessor_t;
 
    typedef ANormal normal_attachment_t;
    typedef Grid::FaceAttachmentAccessor<normal_attachment_t> normal_accessor_t;
 
    typedef ANumber volume_constraint_attachment_t;
    typedef Grid::VolumeAttachmentAccessor<volume_constraint_attachment_t>  volume_constraint_accessor_t;
 
    MeshObject() : m_creaseHandler(SHE_VERTEX | SHE_EDGE)
    {
      m_grid.attach_to_vertices(aPosition);
      m_aaPos.access(m_grid, aPosition);
      m_grid.attach_to_faces(aNormal);
      m_aaNorm.access(m_grid, aNormal);
      m_subsetHandler.assign_grid(m_grid);
      m_subsetHandler.enable_strict_inheritance(true);
      m_creaseHandler.assign_grid(m_grid);
      m_creaseHandler.subset_info(REM_CREASE).name = "crease";
      m_creaseHandler.subset_info(REM_FIXED).name = "fixed";
      m_selector.assign_grid(m_grid);
      m_pivot = vector3(0, 0, 0);
    }
 
    virtual ~MeshObject() {}
 
    Grid& get_grid()          {return m_grid;}
    SubsetHandler& get_subset_handler() {return m_subsetHandler;}
    SubsetHandler& get_crease_handler() {return m_creaseHandler;}
    Selector& get_selector()      {return m_selector;}
 
    Grid&     grid()        {return m_grid;}
    SubsetHandler&  subset_handler()  {return m_subsetHandler;}
    SubsetHandler&  crease_handler()  {return m_creaseHandler;}
    Selector&   selector()      {return m_selector;}
 
  //  pivot
    void set_pivot(const vector3& pivot)  {m_pivot = pivot;}
    const vector3& get_pivot() const    {return m_pivot;}
 
    vector3& pivot()            {return m_pivot;}
    const vector3& pivot() const      {return m_pivot;}
 
    position_accessor_t& position_accessor()    {return m_aaPos;}
    position_attachment_t& position_attachment()  {return aPosition;}
 
    normal_accessor_t& normal_accessor()    {return m_aaNorm;}
    normal_attachment_t& normal_attachment()  {return aNormal;}
 
    volume_constraint_accessor_t& volume_constraint_accessor()
    {
      volume_constraints_required();
      return m_aaVolumeConstraint;
    }
 
    volume_constraint_attachment_t& volume_constraint_attachment()
    {
      volume_constraints_required();
      return m_aVolumeConstraint;
    }
 
    void clear_volume_constraints()
    {
      if(m_aaVolumeConstraint.valid()){
        m_grid.detach_from_volumes(m_aVolumeConstraint);
        m_aaVolumeConstraint.invalidate();
      }
    }
 
  protected:
    void volume_constraints_required()
    {
      if(!m_aaVolumeConstraint.valid()){
        m_grid.attach_to_volumes(m_aVolumeConstraint);
        m_aaVolumeConstraint.access(m_grid, m_aVolumeConstraint);
      }
    }
 
  protected:
    Grid        m_grid;
    SubsetHandler   m_subsetHandler;
    SubsetHandler   m_creaseHandler;
    Selector      m_selector;
    position_accessor_t m_aaPos;
    normal_accessor_t m_aaNorm;
    vector3       m_pivot;
    volume_constraint_attachment_t    m_aVolumeConstraint;
    volume_constraint_accessor_t    m_aaVolumeConstraint;
 
};
 
 
}}// end of namespace
 
#endif