1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
/* *****************************************************************
    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]

  ***************************************************************** */
// -*- Mode : c++; tab-width: 3; c-tab-always-indent: t; indent-tabs-mode: nil; c-basic-offset: 3
// -*-

/*! \file MultiplyQualityMetric.hpp
\brief
Header file for the MBMesquite::MultiplyQualityMetric class

  \author Michael Brewer
  \date   2002-09-05
 */

#ifndef MultiplyQualityMetric_hpp
#define MultiplyQualityMetric_hpp

#include "Mesquite.hpp"
#include "QualityMetric.hpp"

namespace MBMesquite
{
class Vector3D;
class MsqError;
class PatchData;
class MsqMeshEntity;
class MsqVertex;

/*! \class MultiplyQualityMetric
  \brief Combines two quality metrics (qMetric1 and qMetric2 defined
  in the parent class CompositeQualityMetric) by multiplication for two-
  and three-diminsional elements.  Note:  This function should not
  be used to combine a node-based metric with an element-based
  metric.
*/
class MultiplyQualityMetric : public QualityMetric
{
  public:
    /*! Ensures that qm1 and qm2 are not NULL.  If either qm1 or qm2
      are valid only on a feasible region, then the composite
      metric's feasibility flag is set to one.  If qm1 and qm2 have
      different negateFlags, then a warning is printed, and the composite
      metric's negate flag is set to one.  Otherwise, the composite
      metric's negateFlag is set to qm1's negateFlag (and, thus, qm2's
      negateFlag).
    */
    MultiplyQualityMetric( QualityMetric* qm1, QualityMetric* qm2, MsqError& err );

    // virtual destructor ensures use of polymorphism during destruction
    virtual ~MultiplyQualityMetric();

    MetricType get_metric_type() const;<--- Function in derived class

    std::string get_name() const;<--- Function in derived class

    int get_negate_flag() const;<--- Function in derived class

    QualityMetric* get_first_metric() const
    {
        return &metric1;
    }
    QualityMetric* get_second_metric() const
    {
        return &metric2;
    }

    virtual void get_evaluations( PatchData& pd,<--- Function in derived class
                                  std::vector< size_t >& handles,
                                  bool free_vertices_only,
                                  MsqError& err );

    virtual bool evaluate( PatchData& pd, size_t handle, double& value, MsqError& err );<--- Function in derived class

    virtual bool evaluate_with_indices( PatchData& pd,<--- Function in derived class
                                        size_t handle,
                                        double& value,
                                        std::vector< size_t >& indices,
                                        MsqError& err );

    virtual bool evaluate_with_gradient( PatchData& pd,<--- Function in derived class
                                         size_t handle,
                                         double& value,
                                         std::vector< size_t >& indices,
                                         std::vector< Vector3D >& gradient,
                                         MsqError& err );

    virtual bool evaluate_with_Hessian( PatchData& pd,<--- Function in derived class
                                        size_t handle,
                                        double& value,
                                        std::vector< size_t >& indices,
                                        std::vector< Vector3D >& gradient,
                                        std::vector< Matrix3D >& Hessian,
                                        MsqError& err );

  private:
    QualityMetric& metric1;
    QualityMetric& metric2;
    mutable std::vector< size_t > mHandles;
    mutable std::vector< size_t > indices1, indices2;
    mutable std::vector< Vector3D > grad1, grad2;
    mutable std::vector< Matrix3D > Hess1, Hess2;
};

}  // namespace MBMesquite

#endif  // MultiplyQualityMetric_hpp