LCOV - code coverage report
Current view: top level - src/mesquite/TargetMetric/ShapeSize - TShapeSizeB3.cpp (source / functions) Hit Total Coverage
Test: coverage_sk.info Lines: 1 75 1.3 %
Date: 2020-07-18 00:09:26 Functions: 2 10 20.0 %
Branches: 2 104 1.9 %

           Branch data     Line data    Source code
       1                 :            : /* *****************************************************************
       2                 :            :     MESQUITE -- The Mesh Quality Improvement Toolkit
       3                 :            : 
       4                 :            :     Copyright 2006 Sandia National Laboratories.  Developed at the
       5                 :            :     University of Wisconsin--Madison under SNL contract number
       6                 :            :     624796.  The U.S. Government and the University of Wisconsin
       7                 :            :     retain certain rights to this software.
       8                 :            : 
       9                 :            :     This library is free software; you can redistribute it and/or
      10                 :            :     modify it under the terms of the GNU Lesser General Public
      11                 :            :     License as published by the Free Software Foundation; either
      12                 :            :     version 2.1 of the License, or (at your option) any later version.
      13                 :            : 
      14                 :            :     This library is distributed in the hope that it will be useful,
      15                 :            :     but WITHOUT ANY WARRANTY; without even the implied warranty of
      16                 :            :     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      17                 :            :     Lesser General Public License for more details.
      18                 :            : 
      19                 :            :     You should have received a copy of the GNU Lesser General Public License
      20                 :            :     (lgpl.txt) along with this library; if not, write to the Free Software
      21                 :            :     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
      22                 :            : 
      23                 :            :     (2006) [email protected]
      24                 :            : 
      25                 :            :   ***************************************************************** */
      26                 :            : 
      27                 :            : /** \file TShapeSizeB3.cpp
      28                 :            :  *  \brief
      29                 :            :  *  \author Jason Kraftcheck
      30                 :            :  */
      31                 :            : 
      32                 :            : #include "Mesquite.hpp"
      33                 :            : #include "TShapeSizeB3.hpp"
      34                 :            : #include "TMPDerivs.hpp"
      35                 :            : #include "MsqError.hpp"
      36                 :            : 
      37                 :            : #include <iostream>
      38                 :            : 
      39                 :            : namespace MBMesquite
      40                 :            : {
      41                 :            : 
      42                 :          0 : std::string TShapeSizeB3::get_name() const
      43                 :            : {
      44         [ #  # ]:          0 :     return "TShapeSizeB3";
      45                 :            : }
      46                 :            : 
      47         [ #  # ]:          0 : TShapeSizeB3::~TShapeSizeB3() {}
      48                 :            : 
      49                 :          0 : bool TShapeSizeB3::evaluate( const MsqMatrix< 2, 2 >& T, double& result, MsqError& err )
      50                 :            : {
      51                 :          0 :     const double tau = det( T );
      52         [ #  # ]:          0 :     if( invalid_determinant( tau ) )
      53                 :            :     {  // barrier
      54         [ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
      55                 :          0 :         return false;
      56                 :            :     }
      57                 :            : 
      58                 :          0 :     result = sqr_Frobenius( T ) - 2.0 * std::log( tau ) - 2;
      59                 :          0 :     return true;
      60                 :            : }
      61                 :            : 
      62                 :          0 : bool TShapeSizeB3::evaluate_with_grad( const MsqMatrix< 2, 2 >& T, double& result, MsqMatrix< 2, 2 >& deriv_wrt_T,
      63                 :            :                                        MsqError& err )
      64                 :            : {
      65                 :          0 :     const double tau = det( T );
      66         [ #  # ]:          0 :     if( invalid_determinant( tau ) )
      67                 :            :     {  // barrier
      68         [ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
      69                 :          0 :         return false;
      70                 :            :     }
      71                 :            : 
      72                 :          0 :     result      = sqr_Frobenius( T ) - 2.0 * std::log( tau ) - 2;
      73                 :          0 :     deriv_wrt_T = T;
      74 [ #  # ][ #  # ]:          0 :     deriv_wrt_T -= 1 / tau * transpose_adj( T );
      75                 :          0 :     deriv_wrt_T *= 2;
      76                 :            : 
      77                 :          0 :     return true;
      78                 :            : }
      79                 :            : 
      80                 :          0 : bool TShapeSizeB3::evaluate_with_hess( const MsqMatrix< 2, 2 >& T, double& result, MsqMatrix< 2, 2 >& deriv_wrt_T,
      81                 :            :                                        MsqMatrix< 2, 2 > second_wrt_T[3], MsqError& err )
      82                 :            : {
      83         [ #  # ]:          0 :     const double tau = det( T );
      84 [ #  # ][ #  # ]:          0 :     if( invalid_determinant( tau ) )
      85                 :            :     {  // barrier
      86 [ #  # ][ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
      87                 :          0 :         return false;
      88                 :            :     }
      89                 :            : 
      90         [ #  # ]:          0 :     result = sqr_Frobenius( T ) - 2.0 * std::log( tau ) - 2;
      91                 :            : 
      92         [ #  # ]:          0 :     const MsqMatrix< 2, 2 > adjt = transpose_adj( T );
      93                 :          0 :     const double it              = 1 / tau;
      94                 :          0 :     deriv_wrt_T                  = T;
      95 [ #  # ][ #  # ]:          0 :     deriv_wrt_T -= it * adjt;
      96         [ #  # ]:          0 :     deriv_wrt_T *= 2;
      97                 :            : 
      98         [ #  # ]:          0 :     set_scaled_outer_product( second_wrt_T, 2 * it * it, adjt );
      99         [ #  # ]:          0 :     pluseq_scaled_2nd_deriv_of_det( second_wrt_T, -2 * it );
     100         [ #  # ]:          0 :     pluseq_scaled_I( second_wrt_T, 2.0 );
     101                 :            : 
     102                 :          0 :     return true;
     103                 :            : }
     104                 :            : 
     105                 :          0 : bool TShapeSizeB3::evaluate( const MsqMatrix< 3, 3 >& T, double& result, MsqError& err )
     106                 :            : {
     107                 :          0 :     const double tau = det( T );
     108         [ #  # ]:          0 :     if( invalid_determinant( tau ) )
     109                 :            :     {  // barrier
     110         [ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
     111                 :          0 :         return false;
     112                 :            :     }
     113                 :            : 
     114                 :          0 :     double n = Frobenius( T );
     115                 :          0 :     result   = n * n * n - 3 * MSQ_SQRT_THREE * ( log( tau ) + 1 );
     116                 :          0 :     return true;
     117                 :            : }
     118                 :            : 
     119                 :          0 : bool TShapeSizeB3::evaluate_with_grad( const MsqMatrix< 3, 3 >& T, double& result, MsqMatrix< 3, 3 >& deriv_wrt_T,
     120                 :            :                                        MsqError& err )
     121                 :            : {
     122         [ #  # ]:          0 :     const double tau = det( T );
     123 [ #  # ][ #  # ]:          0 :     if( invalid_determinant( tau ) )
     124                 :            :     {  // barrier
     125 [ #  # ][ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
     126                 :          0 :         return false;
     127                 :            :     }
     128                 :            : 
     129         [ #  # ]:          0 :     double n = Frobenius( T );
     130                 :          0 :     result   = n * n * n - 3 * MSQ_SQRT_THREE * ( log( tau ) + 1 );
     131                 :            : 
     132         [ #  # ]:          0 :     const MsqMatrix< 3, 3 > adjt = transpose_adj( T );
     133                 :          0 :     deriv_wrt_T                  = T;
     134         [ #  # ]:          0 :     deriv_wrt_T *= 3 * n;
     135 [ #  # ][ #  # ]:          0 :     deriv_wrt_T -= 3 * MSQ_SQRT_THREE / tau * adjt;
     136                 :            : 
     137                 :          0 :     return true;
     138                 :            : }
     139                 :            : 
     140                 :          0 : bool TShapeSizeB3::evaluate_with_hess( const MsqMatrix< 3, 3 >& T, double& result, MsqMatrix< 3, 3 >& deriv_wrt_T,
     141                 :            :                                        MsqMatrix< 3, 3 > second_wrt_T[6], MsqError& err )
     142                 :            : {
     143         [ #  # ]:          0 :     const double tau = det( T );
     144 [ #  # ][ #  # ]:          0 :     if( invalid_determinant( tau ) )
     145                 :            :     {  // barrier
     146 [ #  # ][ #  # ]:          0 :         MSQ_SETERR( err )( barrier_violated_msg, MsqError::BARRIER_VIOLATED );
     147                 :          0 :         return false;
     148                 :            :     }
     149                 :            : 
     150         [ #  # ]:          0 :     double n = Frobenius( T );
     151                 :          0 :     result   = n * n * n - 3 * MSQ_SQRT_THREE * ( log( tau ) + 1 );
     152                 :            : 
     153         [ #  # ]:          0 :     const MsqMatrix< 3, 3 > adjt = transpose_adj( T );
     154                 :          0 :     const double it              = 1 / tau;
     155                 :          0 :     deriv_wrt_T                  = T;
     156         [ #  # ]:          0 :     deriv_wrt_T *= 3 * n;
     157 [ #  # ][ #  # ]:          0 :     deriv_wrt_T -= 3 * MSQ_SQRT_THREE * it * adjt;
     158                 :            : 
     159         [ #  # ]:          0 :     if( n > 1e-50 )
     160                 :            :     {
     161         [ #  # ]:          0 :         set_scaled_outer_product( second_wrt_T, 3 / n, T );
     162         [ #  # ]:          0 :         pluseq_scaled_I( second_wrt_T, 3 * n );
     163         [ #  # ]:          0 :         pluseq_scaled_2nd_deriv_of_det( second_wrt_T, -3 * MSQ_SQRT_THREE * it, T );
     164         [ #  # ]:          0 :         pluseq_scaled_outer_product( second_wrt_T, 3 * MSQ_SQRT_THREE * it * it, adjt );
     165                 :            :     }
     166                 :            :     else
     167                 :            :     {
     168 [ #  # ][ #  # ]:          0 :         std::cout << "Warning: Division by zero avoided in TShapeSizeB3::evaluate_with_hess()" << std::endl;
     169                 :            :     }
     170                 :            : 
     171                 :          0 :     return true;
     172                 :            : }
     173                 :            : 
     174 [ +  - ][ +  - ]:          8 : }  // namespace MBMesquite

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