src/INTERP_KERNEL/CellModel.cxx

   1 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19 // Author : Anthony Geay (CEA/DEN)
  20
  21 #include "CellModel.hxx"
  22
  23 #include "InterpKernelException.hxx"
  24
  25 #include <algorithm>
  26 #include <sstream>
  27 #include <vector>
  28 #include <limits>
  29
  30 namespace INTERP_KERNEL
  31 {
  32   const char *CellModel::CELL_TYPES_REPR[]={"NORM_POINT1", "NORM_SEG2", "NORM_SEG3", "NORM_TRI3", "NORM_QUAD4",// 0->4
  33                                             "NORM_POLYGON", "NORM_TRI6", "NORM_TRI7" , "NORM_QUAD8", "NORM_QUAD9",//5->9
  34                                             "NORM_SEG4", "", "", "", "NORM_TETRA4",//10->14
  35                                             "NORM_PYRA5", "NORM_PENTA6", "", "NORM_HEXA8", "",//15->19
  36                                             "NORM_TETRA10", "", "NORM_HEXGP12", "NORM_PYRA13", "",//20->24
  37                                             "NORM_PENTA15", "", "NORM_HEXA27", "", "",//25->29
  38                                             "NORM_HEXA20", "NORM_POLYHED", "NORM_QPOLYG", "NORM_POLYL", "",//30->34
  39                                             "", "", "", "", "",//35->39
  40                                             "NORM_ERROR"};
  41
  42   std::map<NormalizedCellType,CellModel> CellModel::_map_of_unique_instance;
  43
  44   const CellModel& CellModel::GetCellModel(NormalizedCellType type)
  45   {
  46     if(_map_of_unique_instance.empty())
  47       buildUniqueInstance();
  48     const std::map<NormalizedCellType,CellModel>::iterator iter=_map_of_unique_instance.find(type);
  49     if(iter==_map_of_unique_instance.end())
  50       {
  51         std::ostringstream stream; stream << "no cellmodel for normalized type " << type;
  52         throw Exception(stream.str().c_str());
  53       }
  54     return (*iter).second;
  55   }
  56
  57   const char *CellModel::getRepr() const
  58   {
  59     return CELL_TYPES_REPR[(int)_type];
  60   }
  61
  62   /*!
  63    * This method is compatible with all types including dynamic one.
  64    */
  65   bool CellModel::isCompatibleWith(NormalizedCellType type) const
  66   {
  67     if(_type==type)
  68       return true;
  69     const CellModel& other=GetCellModel(type);
  70     if(_dim!=other.getDimension())
  71       return false;
  72     bool b1=isQuadratic();
  73     bool b2=other.isQuadratic();
  74     if((b1 && !b2) || (!b1 && b2))
  75       return false;
  76     b1=isDynamic();
  77     b2=other.isDynamic();
  78     return b1 || b2;
  79   }
  80
  81   void CellModel::buildUniqueInstance()
  82   {
  83     _map_of_unique_instance.insert(std::make_pair(NORM_POINT1,CellModel(NORM_POINT1)));
  84     _map_of_unique_instance.insert(std::make_pair(NORM_SEG2,CellModel(NORM_SEG2)));
  85     _map_of_unique_instance.insert(std::make_pair(NORM_SEG3,CellModel(NORM_SEG3)));
  86     _map_of_unique_instance.insert(std::make_pair(NORM_SEG4,CellModel(NORM_SEG4)));
  87     _map_of_unique_instance.insert(std::make_pair(NORM_TRI3,CellModel(NORM_TRI3)));
  88     _map_of_unique_instance.insert(std::make_pair(NORM_QUAD4,CellModel(NORM_QUAD4)));
  89     _map_of_unique_instance.insert(std::make_pair(NORM_TRI6,CellModel(NORM_TRI6)));
  90     _map_of_unique_instance.insert(std::make_pair(NORM_TRI7,CellModel(NORM_TRI7)));
  91     _map_of_unique_instance.insert(std::make_pair(NORM_QUAD8,CellModel(NORM_QUAD8)));
  92     _map_of_unique_instance.insert(std::make_pair(NORM_QUAD9,CellModel(NORM_QUAD9)));
  93     _map_of_unique_instance.insert(std::make_pair(NORM_TETRA4,CellModel(NORM_TETRA4)));
  94     _map_of_unique_instance.insert(std::make_pair(NORM_HEXA8,CellModel(NORM_HEXA8)));
  95     _map_of_unique_instance.insert(std::make_pair(NORM_PYRA5,CellModel(NORM_PYRA5)));
  96     _map_of_unique_instance.insert(std::make_pair(NORM_PENTA6,CellModel(NORM_PENTA6)));
  97     _map_of_unique_instance.insert(std::make_pair(NORM_TETRA10,CellModel(NORM_TETRA10)));
  98     _map_of_unique_instance.insert(std::make_pair(NORM_HEXGP12,CellModel(NORM_HEXGP12)));
  99     _map_of_unique_instance.insert(std::make_pair(NORM_PYRA13,CellModel(NORM_PYRA13)));
 100     _map_of_unique_instance.insert(std::make_pair(NORM_PENTA15,CellModel(NORM_PENTA15)));
 101     _map_of_unique_instance.insert(std::make_pair(NORM_HEXA20,CellModel(NORM_HEXA20)));
 102     _map_of_unique_instance.insert(std::make_pair(NORM_HEXA27,CellModel(NORM_HEXA27)));
 103     _map_of_unique_instance.insert(std::make_pair(NORM_POLYGON,CellModel(NORM_POLYGON)));
 104     _map_of_unique_instance.insert(std::make_pair(NORM_POLYHED,CellModel(NORM_POLYHED)));
 105     _map_of_unique_instance.insert(std::make_pair(NORM_QPOLYG,CellModel(NORM_QPOLYG)));
 106     _map_of_unique_instance.insert(std::make_pair(NORM_POLYL,CellModel(NORM_POLYL)));
 107     _map_of_unique_instance.insert(std::make_pair(NORM_ERROR,CellModel(NORM_ERROR)));
 108   }
 109
 110   CellModel::CellModel(NormalizedCellType type):_type(type)
 111   {
 112     _is_extruded=false;
 113     _quadratic=false;
 114     _dyn=false;
 115     _extruded_type=NORM_ERROR;
 116     _reverse_extruded_type=NORM_ERROR;
 117     _linear_type=NORM_ERROR;
 118     _quadratic_type=NORM_ERROR;
 119     _quadratic_type2=NORM_ERROR;
 120     _nb_of_little_sons=std::numeric_limits<unsigned>::max();
 121     switch(type)
 122       {
 123       case NORM_POINT1:
 124         {
 125           _nb_of_pts=1; _nb_of_sons=0; _dim=0; _extruded_type=NORM_SEG2; _is_simplex=true;
 126         }
 127         break;
 128       case NORM_SEG2:
 129         {
 130           _nb_of_pts=2; _nb_of_sons=2; _dim=1; _extruded_type=NORM_QUAD4; _quadratic_type=NORM_SEG3; _quadratic_type2=NORM_SEG3; _is_simplex=true; _is_extruded=true; _reverse_extruded_type=NORM_POINT1;
 131           _sons_type[0]=NORM_POINT1; _sons_type[1]=NORM_POINT1;
 132           _sons_con[0][0]=0; _nb_of_sons_con[0]=1;
 133           _sons_con[1][0]=1; _nb_of_sons_con[1]=1;
 134         }
 135         break;
 136       case NORM_SEG3:
 137         {
 138           _nb_of_pts=3; _nb_of_sons=3; _dim=1; _extruded_type=NORM_QUAD8; _linear_type=NORM_SEG2; _quadratic=true; _is_simplex=false;
 139           _sons_type[0]=NORM_POINT1; _sons_type[1]=NORM_POINT1; _sons_type[2]=NORM_POINT1;
 140           _sons_con[0][0]=0; _nb_of_sons_con[0]=1;
 141           _sons_con[1][0]=1; _nb_of_sons_con[1]=1;
 142           _sons_con[2][0]=2; _nb_of_sons_con[2]=1;
 143         }
 144         break;
 145       case NORM_SEG4:
 146         {
 147           _nb_of_pts=4; _nb_of_sons=4; _dim=1; _linear_type=NORM_SEG2; _quadratic=true; _is_simplex=false; // no _extruded_type because no cubic 2D cell
 148           _sons_type[0]=NORM_POINT1; _sons_type[1]=NORM_POINT1; _sons_type[2]=NORM_POINT1; _sons_type[3]=NORM_POINT1;
 149           _sons_con[0][0]=0; _nb_of_sons_con[0]=1;
 150           _sons_con[1][0]=1; _nb_of_sons_con[1]=1;
 151           _sons_con[2][0]=2; _nb_of_sons_con[2]=1;
 152           _sons_con[3][0]=3; _nb_of_sons_con[3]=1;
 153         }
 154         break;
 155       case NORM_TETRA4:
 156         {
 157           _nb_of_pts=4; _nb_of_sons=4; _dim=3; _quadratic_type=NORM_TETRA10; _is_simplex=true;
 158           _sons_type[0]=NORM_TRI3; _sons_type[1]=NORM_TRI3; _sons_type[2]=NORM_TRI3; _sons_type[3]=NORM_TRI3;
 159           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _nb_of_sons_con[0]=3;
 160           _sons_con[1][0]=0; _sons_con[1][1]=3; _sons_con[1][2]=1; _nb_of_sons_con[1]=3;
 161           _sons_con[2][0]=1; _sons_con[2][1]=3; _sons_con[2][2]=2; _nb_of_sons_con[2]=3;
 162           _sons_con[3][0]=2; _sons_con[3][1]=3; _sons_con[3][2]=0; _nb_of_sons_con[3]=3;
 163           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _nb_of_little_sons=6;
 164           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;
 165           _little_sons_con[2][0]=2; _little_sons_con[2][1]=0;
 166           _little_sons_con[3][0]=0; _little_sons_con[3][1]=3;
 167           _little_sons_con[4][0]=1; _little_sons_con[4][1]=3;
 168           _little_sons_con[5][0]=2; _little_sons_con[5][1]=3;
 169         }
 170         break;
 171       case NORM_HEXA8:
 172         {
 173           _nb_of_pts=8; _nb_of_sons=6; _dim=3; _quadratic_type=NORM_HEXA20; _quadratic_type2=NORM_HEXA27; _is_simplex=false; _is_extruded=true; _reverse_extruded_type=NORM_QUAD4;
 174           _sons_type[0]=NORM_QUAD4; _sons_type[1]=NORM_QUAD4; _sons_type[2]=NORM_QUAD4; _sons_type[3]=NORM_QUAD4; _sons_type[4]=NORM_QUAD4; _sons_type[5]=NORM_QUAD4;
 175           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _nb_of_sons_con[0]=4;
 176           _sons_con[1][0]=4; _sons_con[1][1]=7; _sons_con[1][2]=6; _sons_con[1][3]=5; _nb_of_sons_con[1]=4;
 177           _sons_con[2][0]=0; _sons_con[2][1]=4; _sons_con[2][2]=5; _sons_con[2][3]=1; _nb_of_sons_con[2]=4;
 178           _sons_con[3][0]=1; _sons_con[3][1]=5; _sons_con[3][2]=6; _sons_con[3][3]=2; _nb_of_sons_con[3]=4;
 179           _sons_con[4][0]=2; _sons_con[4][1]=6; _sons_con[4][2]=7; _sons_con[4][3]=3; _nb_of_sons_con[4]=4;
 180           _sons_con[5][0]=3; _sons_con[5][1]=7; _sons_con[5][2]=4; _sons_con[5][3]=0; _nb_of_sons_con[5]=4;
 181           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _nb_of_little_sons=12;
 182           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;
 183           _little_sons_con[2][0]=2; _little_sons_con[2][1]=3;
 184           _little_sons_con[3][0]=3; _little_sons_con[3][1]=0;
 185           _little_sons_con[4][0]=4; _little_sons_con[4][1]=5;
 186           _little_sons_con[5][0]=5; _little_sons_con[5][1]=6;
 187           _little_sons_con[6][0]=6; _little_sons_con[6][1]=7;
 188           _little_sons_con[7][0]=7; _little_sons_con[7][1]=4;
 189           _little_sons_con[8][0]=0; _little_sons_con[8][1]=4;
 190           _little_sons_con[9][0]=1; _little_sons_con[9][1]=5;
 191           _little_sons_con[10][0]=2; _little_sons_con[10][1]=6;
 192           _little_sons_con[11][0]=3; _little_sons_con[11][1]=7;
 193         }
 194         break;
 195       case NORM_QUAD4:
 196         {
 197           _nb_of_pts=4; _nb_of_sons=4; _dim=2; _quadratic_type=NORM_QUAD8; _quadratic_type2=NORM_QUAD9; _is_simplex=false; _is_extruded=true;
 198           _sons_type[0]=NORM_SEG2; _sons_type[1]=NORM_SEG2; _sons_type[2]=NORM_SEG2; _sons_type[3]=NORM_SEG2;
 199           _sons_con[0][0]=0; _sons_con[0][1]=1; _nb_of_sons_con[0]=2;
 200           _sons_con[1][0]=1; _sons_con[1][1]=2; _nb_of_sons_con[1]=2;
 201           _sons_con[2][0]=2; _sons_con[2][1]=3; _nb_of_sons_con[2]=2;
 202           _sons_con[3][0]=3; _sons_con[3][1]=0; _nb_of_sons_con[3]=2; _extruded_type=NORM_HEXA8;
 203         }
 204         break;
 205       case NORM_TRI3:
 206         {
 207           _nb_of_pts=3; _nb_of_sons=3; _dim=2; _quadratic_type=NORM_TRI6; _quadratic_type2=NORM_TRI7; _is_simplex=true;
 208           _sons_type[0]=NORM_SEG2; _sons_type[1]=NORM_SEG2; _sons_type[2]=NORM_SEG2;
 209           _sons_con[0][0]=0; _sons_con[0][1]=1; _nb_of_sons_con[0]=2;
 210           _sons_con[1][0]=1; _sons_con[1][1]=2; _nb_of_sons_con[1]=2;
 211           _sons_con[2][0]=2; _sons_con[2][1]=0; _nb_of_sons_con[2]=2; _extruded_type=NORM_PENTA6;
 212         }
 213         break;
 214       case NORM_TRI6:
 215         {
 216           _nb_of_pts=6; _nb_of_sons=3; _dim=2; _linear_type=NORM_TRI3; _is_simplex=false;
 217           _sons_type[0]=NORM_SEG3; _sons_type[1]=NORM_SEG3; _sons_type[2]=NORM_SEG3;
 218           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=3; _nb_of_sons_con[0]=3;
 219           _sons_con[1][0]=1; _sons_con[1][1]=2; _sons_con[1][2]=4; _nb_of_sons_con[1]=3;
 220           _sons_con[2][0]=2; _sons_con[2][1]=0; _sons_con[2][2]=5; _nb_of_sons_con[2]=3; _quadratic=true; _extruded_type=NORM_PENTA15;
 221         }
 222         break;
 223       case NORM_TRI7:
 224         {
 225           _nb_of_pts=7; _nb_of_sons=3; _dim=2; _linear_type=NORM_TRI3; _is_simplex=false;
 226           _sons_type[0]=NORM_SEG3; _sons_type[1]=NORM_SEG3; _sons_type[2]=NORM_SEG3;
 227           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=3; _nb_of_sons_con[0]=3;
 228           _sons_con[1][0]=1; _sons_con[1][1]=2; _sons_con[1][2]=4; _nb_of_sons_con[1]=3;
 229           _sons_con[2][0]=2; _sons_con[2][1]=0; _sons_con[2][2]=5; _nb_of_sons_con[2]=3; _quadratic=true; //no extruded type because no penta20
 230         }
 231         break;
 232       case NORM_QUAD8:
 233         {
 234           _nb_of_pts=8; _nb_of_sons=4; _dim=2; _linear_type=NORM_QUAD4; _is_simplex=false;
 235           _sons_type[0]=NORM_SEG3; _sons_type[1]=NORM_SEG3; _sons_type[2]=NORM_SEG3; _sons_type[3]=NORM_SEG3;
 236           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=4; _nb_of_sons_con[0]=3;
 237           _sons_con[1][0]=1; _sons_con[1][1]=2; _sons_con[1][2]=5; _nb_of_sons_con[1]=3;
 238           _sons_con[2][0]=2; _sons_con[2][1]=3; _sons_con[2][2]=6; _nb_of_sons_con[2]=3;
 239           _sons_con[3][0]=3; _sons_con[3][1]=0; _sons_con[3][2]=7; _nb_of_sons_con[3]=3; _quadratic=true; _extruded_type=NORM_HEXA20;
 240         }
 241         break;
 242       case NORM_QUAD9:
 243         {
 244           _nb_of_pts=9; _nb_of_sons=4; _dim=2; _linear_type=NORM_QUAD4; _is_simplex=false;
 245           _sons_type[0]=NORM_SEG3; _sons_type[1]=NORM_SEG3; _sons_type[2]=NORM_SEG3; _sons_type[3]=NORM_SEG3;
 246           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=4; _nb_of_sons_con[0]=3;
 247           _sons_con[1][0]=1; _sons_con[1][1]=2; _sons_con[1][2]=5; _nb_of_sons_con[1]=3;
 248           _sons_con[2][0]=2; _sons_con[2][1]=3; _sons_con[2][2]=6; _nb_of_sons_con[2]=3;
 249           _sons_con[3][0]=3; _sons_con[3][1]=0; _sons_con[3][2]=7; _nb_of_sons_con[3]=3; _quadratic=true; _extruded_type=NORM_HEXA27;
 250         }
 251         break;
 252       case NORM_PYRA5:
 253         {
 254           _nb_of_pts=5; _nb_of_sons=5; _dim=3; _quadratic_type=NORM_PYRA13; _is_simplex=false;
 255           _sons_type[0]=NORM_QUAD4; _sons_type[1]=NORM_TRI3; _sons_type[2]=NORM_TRI3; _sons_type[3]=NORM_TRI3; _sons_type[4]=NORM_TRI3;
 256           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _nb_of_sons_con[0]=4;
 257           _sons_con[1][0]=0; _sons_con[1][1]=4; _sons_con[1][2]=1; _nb_of_sons_con[1]=3;
 258           _sons_con[2][0]=1; _sons_con[2][1]=4; _sons_con[2][2]=2; _nb_of_sons_con[2]=3;
 259           _sons_con[3][0]=2; _sons_con[3][1]=4; _sons_con[3][2]=3; _nb_of_sons_con[3]=3;
 260           _sons_con[4][0]=3; _sons_con[4][1]=4; _sons_con[4][2]=0; _nb_of_sons_con[4]=3;
 261           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _nb_of_little_sons=8;
 262           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;
 263           _little_sons_con[2][0]=2; _little_sons_con[2][1]=3;
 264           _little_sons_con[3][0]=3; _little_sons_con[3][1]=0;
 265           _little_sons_con[4][0]=0; _little_sons_con[4][1]=4;
 266           _little_sons_con[5][0]=1; _little_sons_con[5][1]=4;
 267           _little_sons_con[6][0]=2; _little_sons_con[6][1]=4;
 268           _little_sons_con[7][0]=3; _little_sons_con[7][1]=4;
 269         }
 270         break;
 271       case NORM_PENTA6:
 272         {
 273           _nb_of_pts=6; _nb_of_sons=5; _dim=3; _quadratic_type=NORM_PENTA15; _is_simplex=false; _is_extruded=true; _reverse_extruded_type=NORM_TRI3;
 274           _sons_type[0]=NORM_TRI3; _sons_type[1]=NORM_TRI3; _sons_type[2]=NORM_QUAD4; _sons_type[3]=NORM_QUAD4; _sons_type[4]=NORM_QUAD4;
 275           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _nb_of_sons_con[0]=3;
 276           _sons_con[1][0]=3; _sons_con[1][1]=5; _sons_con[1][2]=4; _nb_of_sons_con[1]=3;
 277           _sons_con[2][0]=0; _sons_con[2][1]=3; _sons_con[2][2]=4; _sons_con[2][3]=1; _nb_of_sons_con[2]=4;
 278           _sons_con[3][0]=1; _sons_con[3][1]=4; _sons_con[3][2]=5; _sons_con[3][3]=2; _nb_of_sons_con[3]=4;
 279           _sons_con[4][0]=2; _sons_con[4][1]=5; _sons_con[4][2]=3; _sons_con[4][3]=0; _nb_of_sons_con[4]=4;
 280           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _nb_of_little_sons=9;
 281           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;
 282           _little_sons_con[2][0]=2; _little_sons_con[2][1]=0;
 283           _little_sons_con[3][0]=3; _little_sons_con[3][1]=4;
 284           _little_sons_con[4][0]=4; _little_sons_con[4][1]=5;
 285           _little_sons_con[5][0]=5; _little_sons_con[5][1]=3;
 286           _little_sons_con[6][0]=0; _little_sons_con[6][1]=3;
 287           _little_sons_con[7][0]=1; _little_sons_con[7][1]=4;
 288           _little_sons_con[8][0]=2; _little_sons_con[8][1]=5;
 289         }
 290         break;
 291       case NORM_TETRA10:
 292         {
 293           _nb_of_pts=10; _nb_of_sons=4; _dim=3; _linear_type=NORM_TETRA4; _is_simplex=false;
 294           _sons_type[0]=NORM_TRI6; _sons_type[1]=NORM_TRI6; _sons_type[2]=NORM_TRI6; _sons_type[3]=NORM_TRI6;
 295           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=4; _sons_con[0][4]=5; _sons_con[0][5]=6; _nb_of_sons_con[0]=6;
 296           _sons_con[1][0]=0; _sons_con[1][1]=3; _sons_con[1][2]=1; _sons_con[1][3]=7; _sons_con[1][4]=8; _sons_con[1][5]=4; _nb_of_sons_con[1]=6;
 297           _sons_con[2][0]=1; _sons_con[2][1]=3; _sons_con[2][2]=2; _sons_con[2][3]=8; _sons_con[2][4]=9; _sons_con[2][5]=5; _nb_of_sons_con[2]=6;
 298           _sons_con[3][0]=2; _sons_con[3][1]=3; _sons_con[3][2]=0; _sons_con[3][3]=9; _sons_con[3][4]=7; _sons_con[3][5]=6; _nb_of_sons_con[3]=6;  _quadratic=true;
 299           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _little_sons_con[0][2]=4;  _nb_of_little_sons=6;
 300           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;  _little_sons_con[1][2]=5;
 301           _little_sons_con[2][0]=2; _little_sons_con[2][1]=0;  _little_sons_con[2][2]=6;
 302           _little_sons_con[3][0]=0; _little_sons_con[3][1]=3;  _little_sons_con[3][2]=7;
 303           _little_sons_con[4][0]=1; _little_sons_con[4][1]=3;  _little_sons_con[4][2]=8;
 304           _little_sons_con[5][0]=2; _little_sons_con[5][1]=3;  _little_sons_con[5][2]=9;
 305         }
 306         break;
 307       case NORM_HEXGP12:
 308         {
 309           _nb_of_pts=12; _nb_of_sons=8; _dim=3; _is_simplex=false; _is_extruded=true;
 310           _sons_type[0]=NORM_POLYGON; _sons_type[1]=NORM_POLYGON; _sons_type[2]=NORM_QUAD4; _sons_type[3]=NORM_QUAD4; _sons_type[4]=NORM_QUAD4; _sons_type[5]=NORM_QUAD4;
 311           _sons_type[6]=NORM_QUAD4; _sons_type[7]=NORM_QUAD4;
 312           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _sons_con[0][4]=4; _sons_con[0][5]=5; _nb_of_sons_con[0]=6;
 313           _sons_con[1][0]=6; _sons_con[1][1]=11; _sons_con[1][2]=10; _sons_con[1][3]=9; _sons_con[1][4]=8; _sons_con[1][5]=7; _nb_of_sons_con[1]=6;
 314           _sons_con[2][0]=0; _sons_con[2][1]=6; _sons_con[2][2]=7; _sons_con[2][3]=1; _nb_of_sons_con[2]=4;
 315           _sons_con[3][0]=1; _sons_con[3][1]=7; _sons_con[3][2]=8; _sons_con[3][3]=2; _nb_of_sons_con[3]=4;
 316           _sons_con[4][0]=2; _sons_con[4][1]=8; _sons_con[4][2]=9; _sons_con[4][3]=3; _nb_of_sons_con[4]=4;
 317           _sons_con[5][0]=3; _sons_con[5][1]=9; _sons_con[5][2]=10; _sons_con[5][3]=4; _nb_of_sons_con[5]=4;
 318           _sons_con[6][0]=4; _sons_con[6][1]=10; _sons_con[6][2]=11; _sons_con[6][3]=5; _nb_of_sons_con[6]=4;
 319           _sons_con[7][0]=5; _sons_con[7][1]=11; _sons_con[7][2]=6; _sons_con[7][3]=0; _nb_of_sons_con[7]=4;
 320         }
 321         break;
 322       case NORM_PYRA13:
 323         {
 324           _nb_of_pts=13; _nb_of_sons=5; _dim=3; _linear_type=NORM_PYRA5; _is_simplex=false;
 325           _sons_type[0]=NORM_QUAD8; _sons_type[1]=NORM_TRI6; _sons_type[2]=NORM_TRI6; _sons_type[3]=NORM_TRI6; _sons_type[4]=NORM_TRI6;
 326           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _sons_con[0][4]=5; _sons_con[0][5]=6; _sons_con[0][6]=7; _sons_con[0][7]=8; _nb_of_sons_con[0]=8;
 327           _sons_con[1][0]=0; _sons_con[1][1]=4; _sons_con[1][2]=1; _sons_con[1][3]=9; _sons_con[1][4]=10; _sons_con[1][5]=5; _nb_of_sons_con[1]=6;
 328           _sons_con[2][0]=1; _sons_con[2][1]=4; _sons_con[2][2]=2; _sons_con[2][3]=10; _sons_con[2][4]=11; _sons_con[2][5]=6; _nb_of_sons_con[2]=6;
 329           _sons_con[3][0]=2; _sons_con[3][1]=4; _sons_con[3][2]=3; _sons_con[3][3]=11; _sons_con[3][4]=12; _sons_con[3][5]=7;  _nb_of_sons_con[3]=6;
 330           _sons_con[4][0]=3; _sons_con[4][1]=4; _sons_con[4][2]=0; _sons_con[4][3]=12; _sons_con[4][4]=9; _sons_con[4][5]=8; _nb_of_sons_con[4]=6; _quadratic=true;
 331           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1; _little_sons_con[0][2]=5;  _nb_of_little_sons=8;
 332           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2; _little_sons_con[1][2]=6;
 333           _little_sons_con[2][0]=2; _little_sons_con[2][1]=3; _little_sons_con[2][2]=7;
 334           _little_sons_con[3][0]=3; _little_sons_con[3][1]=0; _little_sons_con[3][2]=8;
 335           _little_sons_con[4][0]=0; _little_sons_con[4][1]=4; _little_sons_con[4][2]=9;
 336           _little_sons_con[5][0]=1; _little_sons_con[5][1]=4; _little_sons_con[5][2]=10;
 337           _little_sons_con[6][0]=2; _little_sons_con[6][1]=4; _little_sons_con[6][2]=11;
 338           _little_sons_con[7][0]=3; _little_sons_con[7][1]=4; _little_sons_con[7][2]=12;
 339         }
 340         break;
 341       case NORM_PENTA15:
 342         {
 343           _nb_of_pts=15; _nb_of_sons=5; _dim=3; _linear_type=NORM_PENTA6; _is_simplex=false;
 344           _sons_type[0]=NORM_TRI6; _sons_type[1]=NORM_TRI6; _sons_type[2]=NORM_QUAD8; _sons_type[3]=NORM_QUAD8; _sons_type[4]=NORM_QUAD8;
 345           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=6; _sons_con[0][4]=7; _sons_con[0][5]=8; _nb_of_sons_con[0]=6;
 346           _sons_con[1][0]=3; _sons_con[1][1]=5; _sons_con[1][2]=4; _sons_con[1][3]=11; _sons_con[1][4]=10; _sons_con[1][5]=9; _nb_of_sons_con[1]=6;
 347           _sons_con[2][0]=0; _sons_con[2][1]=3; _sons_con[2][2]=4; _sons_con[2][3]=1; _sons_con[2][4]=12; _sons_con[2][5]=9; _sons_con[2][6]=13; _sons_con[2][7]=6; _nb_of_sons_con[2]=8;
 348           _sons_con[3][0]=1; _sons_con[3][1]=4; _sons_con[3][2]=5; _sons_con[3][3]=2; _sons_con[3][4]=13; _sons_con[3][5]=10; _sons_con[3][6]=14; _sons_con[3][7]=7; _nb_of_sons_con[3]=8;
 349           _sons_con[4][0]=2; _sons_con[4][1]=4; _sons_con[4][2]=5; _sons_con[4][3]=0; _sons_con[4][4]=14; _sons_con[4][5]=11; _sons_con[4][6]=12; _sons_con[4][7]=8; _nb_of_sons_con[4]=8; _quadratic=true;
 350           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1; _little_sons_con[0][2]=6;  _nb_of_little_sons=9;
 351           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2; _little_sons_con[1][2]=7;
 352           _little_sons_con[2][0]=2; _little_sons_con[2][1]=0; _little_sons_con[2][2]=8;
 353           _little_sons_con[3][0]=3; _little_sons_con[3][1]=4; _little_sons_con[3][2]=9;
 354           _little_sons_con[4][0]=4; _little_sons_con[4][1]=5; _little_sons_con[4][2]=10;
 355           _little_sons_con[5][0]=5; _little_sons_con[5][1]=3; _little_sons_con[5][2]=11;
 356           _little_sons_con[6][0]=0; _little_sons_con[6][1]=3; _little_sons_con[6][2]=12;
 357           _little_sons_con[7][0]=1; _little_sons_con[7][1]=4; _little_sons_con[7][2]=13;
 358           _little_sons_con[8][0]=2; _little_sons_con[8][1]=5; _little_sons_con[8][2]=14;
 359         }
 360         break;
 361       case NORM_HEXA20:
 362         {
 363           _nb_of_pts=20; _nb_of_sons=6; _dim=3; _linear_type=NORM_HEXA8; _is_simplex=false;
 364           _sons_type[0]=NORM_QUAD8; _sons_type[1]=NORM_QUAD8; _sons_type[2]=NORM_QUAD8; _sons_type[3]=NORM_QUAD8; _sons_type[4]=NORM_QUAD8; _sons_type[5]=NORM_QUAD8;
 365           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _sons_con[0][4]=8; _sons_con[0][5]=9; _sons_con[0][6]=10; _sons_con[0][7]=11; _nb_of_sons_con[0]=8;
 366           _sons_con[1][0]=4; _sons_con[1][1]=7; _sons_con[1][2]=6; _sons_con[1][3]=5; _sons_con[1][4]=15; _sons_con[1][5]=14; _sons_con[1][6]=13; _sons_con[1][7]=12; _nb_of_sons_con[1]=8;
 367           _sons_con[2][0]=0; _sons_con[2][1]=4; _sons_con[2][2]=5; _sons_con[2][3]=1; _sons_con[2][4]=16; _sons_con[2][5]=12; _sons_con[2][6]=17; _sons_con[2][7]=8; _nb_of_sons_con[2]=8;
 368           _sons_con[3][0]=1; _sons_con[3][1]=5; _sons_con[3][3]=6; _sons_con[3][3]=2; _sons_con[3][4]=17; _sons_con[3][5]=13; _sons_con[3][6]=18; _sons_con[3][7]=9;_nb_of_sons_con[3]=8;
 369           _sons_con[4][0]=2; _sons_con[4][1]=6; _sons_con[4][3]=7; _sons_con[4][3]=3; _sons_con[4][4]=18; _sons_con[4][5]=14; _sons_con[4][6]=19; _sons_con[4][7]=10; _nb_of_sons_con[4]=8;
 370           _sons_con[5][0]=3; _sons_con[5][1]=7; _sons_con[5][3]=4; _sons_con[5][3]=0; _sons_con[5][4]=19; _sons_con[5][5]=15; _sons_con[5][6]=16; _sons_con[5][7]=11; _nb_of_sons_con[5]=8; _quadratic=true;
 371           _little_sons_con[0][0]=0; _little_sons_con[0][1]=1;  _little_sons_con[0][2]=8; _nb_of_little_sons=12;
 372           _little_sons_con[1][0]=1; _little_sons_con[1][1]=2;  _little_sons_con[1][2]=9;
 373           _little_sons_con[2][0]=2; _little_sons_con[2][1]=3;  _little_sons_con[2][2]=10;
 374           _little_sons_con[3][0]=3; _little_sons_con[3][1]=0;  _little_sons_con[3][2]=11;
 375           _little_sons_con[4][0]=4; _little_sons_con[4][1]=5;  _little_sons_con[4][2]=12;
 376           _little_sons_con[5][0]=5; _little_sons_con[5][1]=6;  _little_sons_con[5][2]=13;
 377           _little_sons_con[6][0]=6; _little_sons_con[6][1]=7;  _little_sons_con[6][2]=14;
 378           _little_sons_con[7][0]=7; _little_sons_con[7][1]=4;  _little_sons_con[7][2]=15;
 379           _little_sons_con[8][0]=0; _little_sons_con[8][1]=4;  _little_sons_con[8][2]=16;
 380           _little_sons_con[9][0]=1; _little_sons_con[9][1]=5;  _little_sons_con[9][2]=17;
 381           _little_sons_con[10][0]=2; _little_sons_con[10][1]=6;  _little_sons_con[10][2]=18;
 382           _little_sons_con[11][0]=3; _little_sons_con[11][1]=7;  _little_sons_con[11][2]=19;
 383         }
 384         break;
 385       case NORM_HEXA27:
 386         {
 387           _nb_of_pts=27; _nb_of_sons=6; _dim=3; _linear_type=NORM_HEXA8; _is_simplex=false;
 388           _sons_type[0]=NORM_QUAD9; _sons_type[1]=NORM_QUAD9; _sons_type[2]=NORM_QUAD9; _sons_type[3]=NORM_QUAD9; _sons_type[4]=NORM_QUAD9; _sons_type[5]=NORM_QUAD9;
 389           _sons_con[0][0]=0; _sons_con[0][1]=1; _sons_con[0][2]=2; _sons_con[0][3]=3; _sons_con[0][4]=8; _sons_con[0][5]=9; _sons_con[0][6]=10; _sons_con[0][7]=11; _sons_con[0][8]=20; _nb_of_sons_con[0]=9;
 390           _sons_con[1][0]=4; _sons_con[1][1]=7; _sons_con[1][2]=6; _sons_con[1][3]=5; _sons_con[1][4]=15; _sons_con[1][5]=14; _sons_con[1][6]=13; _sons_con[1][7]=12; _sons_con[1][8]=25; _nb_of_sons_con[1]=9;
 391           _sons_con[2][0]=0; _sons_con[2][1]=4; _sons_con[2][2]=5; _sons_con[2][3]=1; _sons_con[2][4]=16; _sons_con[2][5]=12; _sons_con[2][6]=17; _sons_con[2][7]=8; _sons_con[2][8]=21; _nb_of_sons_con[2]=9;
 392           _sons_con[3][0]=1; _sons_con[3][1]=5; _sons_con[3][3]=6; _sons_con[3][3]=2; _sons_con[3][4]=17; _sons_con[3][5]=13; _sons_con[3][6]=18; _sons_con[3][7]=9; _sons_con[3][8]=22; _nb_of_sons_con[3]=9;
 393           _sons_con[4][0]=2; _sons_con[4][1]=6; _sons_con[4][3]=7; _sons_con[4][3]=3; _sons_con[4][4]=18; _sons_con[4][5]=14; _sons_con[4][6]=19; _sons_con[4][7]=10; _sons_con[4][8]=23; _nb_of_sons_con[4]=9;
 394           _sons_con[5][0]=3; _sons_con[5][1]=7; _sons_con[5][3]=4; _sons_con[5][3]=0; _sons_con[5][4]=19; _sons_con[5][5]=15; _sons_con[5][6]=16; _sons_con[5][7]=11; _sons_con[5][8]=24; _nb_of_sons_con[5]=9;
 395           _quadratic=true;
 396         }
 397         break;
 398       case NORM_POLYGON:
 399         {
 400           _nb_of_pts=0; _nb_of_sons=0; _dim=2; _dyn=true; _extruded_type=NORM_POLYHED; _is_simplex=false;
 401         }
 402         break;
 403       case NORM_POLYHED:
 404         {
 405           _nb_of_pts=0; _nb_of_sons=0; _dim=3; _dyn=true; _is_simplex=false;
 406         }
 407         break;
 408       case NORM_QPOLYG:
 409         {
 410           _nb_of_pts=0; _nb_of_sons=0; _dim=2; _dyn=true; _is_simplex=false; _quadratic=true;
 411         }
 412         break;
 413       case NORM_POLYL:
 414         {
 415           _nb_of_pts=0; _nb_of_sons=0; _dim=1; _dyn=true; _extruded_type=NORM_POLYGON; _is_simplex=false;
 416         }
 417       case NORM_ERROR:
 418         {
 419           _nb_of_pts=std::numeric_limits<unsigned>::max(); _nb_of_sons=std::numeric_limits<unsigned>::max(); _dim=std::numeric_limits<unsigned>::max();
 420         }
 421         break;
 422       }
 423   }
 424
 425   /*!
 426    * Equivalent to getNumberOfSons except that this method deals with dynamic type.
 427    */
 428   unsigned CellModel::getNumberOfSons2(const int *conn, int lgth) const
 429   {
 430     if(!isDynamic())
 431       return getNumberOfSons();
 432     if(_dim==2)
 433       {
 434         if(_type==NORM_POLYGON)
 435           return lgth;
 436         else
 437           return lgth/2;
 438       }
 439     else if(_dim==1)
 440       return lgth;//NORM_POLYL
 441     else
 442       return std::count(conn,conn+lgth,-1)+1;
 443   }
 444
 445   unsigned CellModel::getNumberOfEdgesIn3D(const int *conn, int lgth) const
 446   {
 447     if(!isDynamic())
 448       return _nb_of_little_sons;
 449     else//polyhedron
 450       return (lgth-std::count(conn,conn+lgth,-1))/2;
 451   }
 452
 453   /*!
 454    * Equivalent to getSonType except that this method deals with dynamic type.
 455    */
 456   NormalizedCellType CellModel::getSonType2(unsigned sonId) const
 457   {
 458     if(!isDynamic())
 459       return getSonType(sonId);
 460     if(_dim==2)
 461       {
 462         if(_type==NORM_POLYGON)
 463           return NORM_SEG2;
 464         else
 465           return NORM_SEG3;
 466       }
 467     else if(_dim==1)
 468       return NORM_ERROR;//NORM_POLYL
 469     //polyedron
 470     return NORM_POLYGON;
 471   }
 472
 473   /*!
 474    * \b WARNING this method do not manage correctly types that return true at the call of isDynamic. Use fillSonCellNodalConnectivity2 instead.
 475    */
 476   unsigned CellModel::fillSonCellNodalConnectivity(int sonId, const int *nodalConn, int *sonNodalConn) const
 477   {
 478     unsigned nbOfTurnLoop=_nb_of_sons_con[sonId];
 479     const unsigned *sonConn=_sons_con[sonId];
 480     for(unsigned i=0;i<nbOfTurnLoop;i++)
 481       sonNodalConn[i]=nodalConn[sonConn[i]];
 482     return nbOfTurnLoop;
 483   }
 484
 485   unsigned CellModel::fillSonCellNodalConnectivity2(int sonId, const int *nodalConn, int lgth, int *sonNodalConn, NormalizedCellType& typeOfSon) const
 486   {
 487     typeOfSon=getSonType2(sonId);
 488     if(!isDynamic())
 489       return fillSonCellNodalConnectivity(sonId,nodalConn,sonNodalConn);
 490     else
 491       {
 492         if(_dim==2)//polygon
 493           {
 494             if(_type==NORM_POLYGON)
 495               {
 496                 sonNodalConn[0]=nodalConn[sonId];
 497                 sonNodalConn[1]=nodalConn[(sonId+1)%lgth];
 498                 return 2;
 499               }
 500             else
 501               {
 502                 sonNodalConn[0]=nodalConn[sonId];
 503                 sonNodalConn[1]=nodalConn[(sonId+1)%(lgth/2)];
 504                 sonNodalConn[2]=nodalConn[sonId+(lgth/2)];
 505                 return 3;
 506               }
 507           }
 508         else if(_dim==3)
 509           {//polyedron
 510             const int *where=nodalConn;
 511             for(int i=0;i<sonId;i++)
 512               {
 513                 where=std::find(where,nodalConn+lgth,-1);
 514                 where++;
 515               }
 516             const int *where2=std::find(where,nodalConn+lgth,-1);
 517             std::copy(where,where2,sonNodalConn);
 518             return where2-where;
 519           }
 520         else
 521           throw INTERP_KERNEL::Exception("CellModel::fillSonCellNodalConnectivity2 : no sons on NORM_POLYL !");
 522       }
 523   }
 524
 525   /*!
 526    * Equivalent to CellModel::fillSonCellNodalConnectivity2 except for HEXA8 where the order of sub faces is not has MED file numbering for transformation HEXA8->HEXA27
 527    */
 528   unsigned CellModel::fillSonCellNodalConnectivity4(int sonId, const int *nodalConn, int lgth, int *sonNodalConn, NormalizedCellType& typeOfSon) const
 529   {
 530     if(_type==NORM_HEXA8)
 531       {
 532         static const int permutation[6]={0,2,3,4,1};
 533         return fillSonCellNodalConnectivity2(permutation[sonId],nodalConn,lgth,sonNodalConn,typeOfSon);
 534       }
 535     else
 536       return fillSonCellNodalConnectivity2(sonId,nodalConn,lgth,sonNodalConn,typeOfSon);
 537   }
 538
 539   unsigned CellModel::fillSonEdgesNodalConnectivity3D(int sonId, const int *nodalConn, int lgth, int *sonNodalConn, NormalizedCellType& typeOfSon) const
 540   {
 541     if(!isDynamic())
 542       {
 543         if(!isQuadratic())
 544           {
 545             typeOfSon=NORM_SEG2;
 546             sonNodalConn[0]=nodalConn[_little_sons_con[sonId][0]];
 547             sonNodalConn[1]=nodalConn[_little_sons_con[sonId][1]];
 548             return 2;
 549           }
 550         else
 551           {
 552             typeOfSon=NORM_SEG3;
 553             sonNodalConn[0]=nodalConn[_little_sons_con[sonId][0]];
 554             sonNodalConn[1]=nodalConn[_little_sons_con[sonId][1]];
 555             sonNodalConn[2]=nodalConn[_little_sons_con[sonId][2]];
 556             return 3;
 557           }
 558       }
 559     else
 560       throw INTERP_KERNEL::Exception("CellModel::fillSonEdgesNodalConnectivity3D : not implemented yet for NORM_POLYHED !");
 561   }
 562
 563   //================================================================================
 564   /*!
 565    * \brief Return number of nodes in sonId-th son of a Dynamic() cell
 566    */
 567   //================================================================================
 568
 569   unsigned CellModel::getNumberOfNodesConstituentTheSon2(unsigned sonId, const int *nodalConn, int lgth) const
 570   {
 571     if(!isDynamic())
 572       return getNumberOfNodesConstituentTheSon(sonId);
 573
 574     if(_dim==2)//polygon
 575       {
 576         if(_type==NORM_POLYGON)
 577           return 2;
 578         else
 579           return 3;
 580       }
 581     else if(_dim==3)
 582       {//polyedron
 583         const int *where=nodalConn;
 584         for(unsigned int i=0;i<sonId;i++)
 585           {
 586             where=std::find(where,nodalConn+lgth,-1);
 587             where++;
 588           }
 589         const int *where2=std::find(where,nodalConn+lgth,-1);
 590         return where2-where;
 591       }
 592     else
 593       throw INTERP_KERNEL::Exception("CellModel::getNumberOfNodesConstituentTheSon2 : no sons on NORM_POLYL !");
 594   }
 595
 596   /*!
 597    * This method retrieves if cell1 represented by 'conn1' and cell2 represented by 'conn2'
 598    * are equivalent by a permutation or not. This method expects to work on 1D or 2D (only mesh dimension where it is possible to have a spaceDim) strictly higher than meshDim.
 599    * If not an exception will be thrown.
 600    * @return True if two cells have same orientation, false if not.
 601    */
 602   bool CellModel::getOrientationStatus(unsigned lgth, const int *conn1, const int *conn2) const
 603   {
 604     if(_dim!=1 && _dim!=2)
 605       throw INTERP_KERNEL::Exception("CellModel::getOrientationStatus : invalid dimension ! Must be 1 or 2 !");
 606     if(!_quadratic)
 607       {
 608         std::vector<int> tmp(2*lgth);
 609         std::vector<int>::iterator it=std::copy(conn1,conn1+lgth,tmp.begin());
 610         std::copy(conn1,conn1+lgth,it);
 611         it=std::search(tmp.begin(),tmp.end(),conn2,conn2+lgth);
 612         if(it==tmp.begin())
 613           return true;
 614         if(it!=tmp.end())
 615           return _dim!=1;
 616         std::vector<int>::reverse_iterator it2=std::search(tmp.rbegin(),tmp.rend(),conn2,conn2+lgth);
 617         if(it2!=tmp.rend())
 618           return false;
 619         throw INTERP_KERNEL::Exception("CellModel::getOrientationStatus : Request of orientation status of non equal connectively cells !");
 620       }
 621     else
 622       {
 623         if(_dim!=1)
 624           {
 625             std::vector<int> tmp(lgth);
 626             std::vector<int>::iterator it=std::copy(conn1,conn1+lgth/2,tmp.begin());
 627             std::copy(conn1,conn1+lgth/2,it);
 628             it=std::search(tmp.begin(),tmp.end(),conn2,conn2+lgth/2);
 629             int d=std::distance(tmp.begin(),it);
 630             if(it==tmp.end())
 631               return false;
 632             it=std::copy(conn1+lgth/2,conn1+lgth,tmp.begin());
 633             std::copy(conn1+lgth/2,conn1+lgth,it);
 634             it=std::search(tmp.begin(),tmp.end(),conn2,conn2+lgth);
 635             if(it==tmp.end())
 636               return false;
 637             int d2=std::distance(tmp.begin(),it);
 638             return d==d2;
 639           }
 640         else
 641           {
 642             int p=(lgth+1)/2;
 643             std::vector<int> tmp(2*p);
 644             std::vector<int>::iterator it=std::copy(conn1,conn1+p,tmp.begin());
 645             std::copy(conn1,conn1+p,it);
 646             it=std::search(tmp.begin(),tmp.end(),conn2,conn2+p);
 647             int d=std::distance(tmp.begin(),it);
 648             if(it==tmp.end())
 649               return false;
 650             tmp.resize(2*p-2);
 651             it=std::copy(conn1+p,conn1+lgth,tmp.begin());
 652             std::copy(conn1+p,conn1+lgth,it);
 653             it=std::search(tmp.begin(),tmp.end(),conn2+p,conn2+lgth);
 654             if(it==tmp.end())
 655               return false;
 656             int d2=std::distance(tmp.begin(),it);
 657             return d==d2;
 658           }
 659       }
 660   }
 661
 662 }