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/* *****************************************************************
    MESQUITE -- The Mesh Quality Improvement Toolkit

    Copyright 2006 Lawrence Livermore National Laboratory.  Under
    the terms of Contract B545069 with the University of Wisconsin --
    Madison, Lawrence Livermore National Laboratory retains certain
    rights in this software.

    This library 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 2.1 of the License, or (at your option) any later version.

    This library 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
    (lgpl.txt) along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    (2006) kraftche@cae.wisc.edu

  ***************************************************************** */

#ifndef MSQ_PATCH_SET_HPP
#define MSQ_PATCH_SET_HPP

/** \file PatchSet.hpp
 *  \brief
 *  \author Jason Kraftcheck
 */

#include <vector>

#include "Mesquite.hpp"
#include "MeshInterface.hpp"

namespace MBMesquite
{

class MsqError;

/**\brief Specify a division of the Mesh into working patches
 *
 * This class provides an interface for specifying how Mesquite
 * will divide the active mesh into working patches.
 */
class MESQUITE_EXPORT PatchSet
{
  public:
    typedef void* PatchHandle;

    inline PatchSet() {}<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.<--- Member variable 'PatchSet::myMesh' is not initialized in the constructor.

    /**\brief Declare destructor virtual */
    virtual ~PatchSet();

    /**\brief Specify the working Mesh */
    inline void set_mesh( Mesh* mesh )
    {
        myMesh = mesh;
    }

    /**\brief Get a list of handles, one for each patch */
    virtual void get_patch_handles( std::vector< PatchHandle >& patch_handles_out, MsqError& err ) = 0;

    /**\brief Get the mesh entities in a patch
     *
     * Given one of the handles returned by get_patch_handles(),
     * return the mesh entities in the corresponding patch.
     *\param patch_handle one of the handles returned by get_patch_handles()
     *\param elem_handles_out the list of elements in the mesh
     *\param free_vertices_out The list of vertices interior to the patch
     *                         If this list is empty, it is assumed that all
     *                         vertices in the closure of the elements are
     *                         free.
     */
    virtual void get_patch( PatchHandle patch_handle,
                            std::vector< Mesh::ElementHandle >& elem_handles_out,
                            std::vector< Mesh::VertexHandle >& free_vertices_out,
                            MsqError& err ) = 0;

    /**\brief get the Mesh object passed to set_mesh() */
    inline Mesh* get_mesh() const
    {
        return myMesh;
    }

  private:
    /**\brief disallow copying*/
    PatchSet( const PatchSet& );
    /**\brief disallow assignment*/
    PatchSet& operator=( const PatchSet& );

    Mesh* myMesh;
};

}  // namespace MBMesquite

#endif