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

    Copyright 2004 Sandia Corporation and Argonne National
    Laboratory.  Under the terms of Contract DE-AC04-94AL85000
    with Sandia Corporation, the U.S. Government 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

    [email protected], [email protected], [email protected],
    [email protected], [email protected], [email protected]

  ***************************************************************** */
/*!
  \file   Randomize.hpp
  \brief

  The Randomize Class implements the Randomize Vertex Mover
  for a patch with one free vertex.

  \author Michael Brewer
  \date   2002-10-27
*/

#ifndef Mesquite_Randomize_hpp
#define Mesquite_Randomize_hpp

#include "Mesquite.hpp"
#include "VertexMover.hpp"
#include "VertexPatches.hpp"
#include <vector>

namespace MBMesquite
{

/*! \class Randomize
 \brief Randomly perftubs the (un-culled) vertices.
*/
class Randomize : public VertexMover
{
  public:
    //! Constructor defaulting mPercent to .05.
    MESQUITE_EXPORT Randomize();
    //! Constructor allowing user to set mPercent
    MESQUITE_EXPORT Randomize( double percent );

    MESQUITE_EXPORT virtual ~Randomize();

    MESQUITE_EXPORT virtual std::string get_name() const;

    MESQUITE_EXPORT virtual PatchSet* get_patch_set();

  protected:
    virtual void initialize( PatchData& pd, MsqError& err );
    virtual void optimize_vertex_positions( PatchData& pd, MsqError& err );
    virtual void initialize_mesh_iteration( PatchData& pd, MsqError& err );
    virtual void terminate_mesh_iteration( PatchData& pd, MsqError& err );
    virtual void cleanup();

  private:
    //! \param The percentage of the scale factor each vertex will be moved.
    double mPercent;
    std::vector< size_t > adjVtxList;
    VertexPatches patchSet;
};

}  // namespace MBMesquite

#endif