src/BLSURFPlugin/BLSURFPlugin_BLSURF.cxx

   1 // Copyright (C) 2007-2016  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, or (at your option) any later version.
   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
  20 // ---
  21 // File    : BLSURFPlugin_BLSURF.cxx
  22 // Authors : Francis KLOSS (OCC) & Patrick LAUG (INRIA) & Lioka RAZAFINDRAZAKA (CEA)
  23 //           & Aurelien ALLEAUME (DISTENE)
  24 //           Size maps developement: Nicolas GEIMER (OCC) & Gilles DAVID (EURIWARE)
  25 // ---
  26
  27 #include "BLSURFPlugin_BLSURF.hxx"
  28 #include "BLSURFPlugin_Hypothesis.hxx"
  29 #include "BLSURFPlugin_Attractor.hxx"
  30
  31 extern "C"{
  32 #include <meshgems/meshgems.h>
  33 #include <meshgems/cadsurf.h>
  34 }
  35
  36 #include <structmember.h>
  37
  38
  39 #include <Basics_Utils.hxx>
  40 #include <Basics_OCCTVersion.hxx>
  41
  42 #include <SMDS_EdgePosition.hxx>
  43 #include <SMESHDS_Group.hxx>
  44 #include <SMESH_Gen.hxx>
  45 #include <SMESH_Group.hxx>
  46 #include <SMESH_Mesh.hxx>
  47 #include <SMESH_MeshEditor.hxx>
  48 #include <SMESH_MesherHelper.hxx>
  49 #include <StdMeshers_FaceSide.hxx>
  50 #include <StdMeshers_ViscousLayers2D.hxx>
  51 #include <SMESH_File.hxx>
  52
  53 #include <utilities.h>
  54
  55 #include <limits>
  56 #include <list>
  57 #include <vector>
  58 #include <set>
  59 #include <cstdlib>
  60
  61 // OPENCASCADE includes
  62 #include <BRepBuilderAPI_MakeFace.hxx>
  63 #include <BRepBuilderAPI_MakePolygon.hxx>
  64 //#include <BRepBuilderAPI_MakeVertex.hxx>
  65 #include <BRepGProp.hxx>
  66 #include <BRepTools.hxx>
  67 #include <BRep_Builder.hxx>
  68 #include <BRep_Tool.hxx>
  69 #include <GProp_GProps.hxx>
  70 #include <Geom2d_Curve.hxx>
  71 #include <GeomAPI_ProjectPointOnCurve.hxx>
  72 #include <GeomAPI_ProjectPointOnSurf.hxx>
  73 #include <Geom_Curve.hxx>
  74 #include <Geom_Surface.hxx>
  75 #include <NCollection_Map.hxx>
  76 #include <Standard_ErrorHandler.hxx>
  77 #include <TopExp.hxx>
  78 #include <TopExp_Explorer.hxx>
  79 #include <TopTools_DataMapOfShapeInteger.hxx>
  80 #include <TopTools_IndexedMapOfShape.hxx>
  81 #include <TopTools_MapOfShape.hxx>
  82 #include <TopoDS.hxx>
  83 #include <TopoDS_Compound.hxx>
  84 #include <TopoDS_Edge.hxx>
  85 #include <TopoDS_Face.hxx>
  86 #include <TopoDS_Shape.hxx>
  87 #include <TopoDS_Vertex.hxx>
  88 #include <TopoDS_Wire.hxx>
  89 #include <gp_Pnt.hxx>
  90 #include <gp_Pnt2d.hxx>
  91 #include <gp_XY.hxx>
  92 #include <gp_XYZ.hxx>
  93
  94 #ifndef WIN32
  95 #include <fenv.h>
  96 #endif
  97
  98 using namespace std;
  99
 100 /* ==================================
 101  * ===========  PYTHON ==============
 102  * ==================================*/
 103
 104 namespace
 105 {
 106   typedef struct {
 107     PyObject_HEAD
 108     int softspace;
 109     std::string *out;
 110     } PyStdOut;
 111
 112   static void
 113   PyStdOut_dealloc(PyStdOut *self)
 114   {
 115     PyObject_Del(self);
 116   }
 117
 118   static PyObject *
 119   PyStdOut_write(PyStdOut *self, PyObject *args)
 120   {
 121     char *c;
 122     int l;
 123     if (!PyArg_ParseTuple(args, "t#:write",&c, &l))
 124       return NULL;
 125
 126     *(self->out)=*(self->out)+c;
 127
 128     Py_INCREF(Py_None);
 129     return Py_None;
 130   }
 131
 132   static PyMethodDef PyStdOut_methods[] = {
 133     {"write",  (PyCFunction)PyStdOut_write,  METH_VARARGS,
 134       PyDoc_STR("write(string) -> None")},
 135     {NULL,    NULL}   /* sentinel */
 136   };
 137
 138   static PyMemberDef PyStdOut_memberlist[] = {
 139     {(char*)"softspace", T_INT,  offsetof(PyStdOut, softspace), 0,
 140      (char*)"flag indicating that a space needs to be printed; used by print"},
 141     {NULL} /* Sentinel */
 142   };
 143
 144   static PyTypeObject PyStdOut_Type = {
 145     /* The ob_type field must be initialized in the module init function
 146      * to be portable to Windows without using C++. */
 147     PyObject_HEAD_INIT(NULL)
 148     0,                            /*ob_size*/
 149     "PyOut",                      /*tp_name*/
 150     sizeof(PyStdOut),             /*tp_basicsize*/
 151     0,                            /*tp_itemsize*/
 152     /* methods */
 153     (destructor)PyStdOut_dealloc, /*tp_dealloc*/
 154     0,                            /*tp_print*/
 155     0,                            /*tp_getattr*/
 156     0,                            /*tp_setattr*/
 157     0,                            /*tp_compare*/
 158     0,                            /*tp_repr*/
 159     0,                            /*tp_as_number*/
 160     0,                            /*tp_as_sequence*/
 161     0,                            /*tp_as_mapping*/
 162     0,                            /*tp_hash*/
 163     0,                            /*tp_call*/
 164     0,                            /*tp_str*/
 165     PyObject_GenericGetAttr,      /*tp_getattro*/
 166     /* softspace is writable:  we must supply tp_setattro */
 167     PyObject_GenericSetAttr,      /* tp_setattro */
 168     0,                            /*tp_as_buffer*/
 169     Py_TPFLAGS_DEFAULT,           /*tp_flags*/
 170     0,                            /*tp_doc*/
 171     0,                            /*tp_traverse*/
 172     0,                            /*tp_clear*/
 173     0,                            /*tp_richcompare*/
 174     0,                            /*tp_weaklistoffset*/
 175     0,                            /*tp_iter*/
 176     0,                            /*tp_iternext*/
 177     PyStdOut_methods,             /*tp_methods*/
 178     PyStdOut_memberlist,          /*tp_members*/
 179     0,                            /*tp_getset*/
 180     0,                            /*tp_base*/
 181     0,                            /*tp_dict*/
 182     0,                            /*tp_descr_get*/
 183     0,                            /*tp_descr_set*/
 184     0,                            /*tp_dictoffset*/
 185     0,                            /*tp_init*/
 186     0,                            /*tp_alloc*/
 187     0,                            /*tp_new*/
 188     0,                            /*tp_free*/
 189     0,                            /*tp_is_gc*/
 190   };
 191
 192   PyObject * newPyStdOut( std::string& out )
 193   {
 194     PyStdOut* self = PyObject_New(PyStdOut, &PyStdOut_Type);
 195     if (self) {
 196       self->softspace = 0;
 197       self->out=&out;
 198     }
 199     return (PyObject*)self;
 200   }
 201 }
 202
 203
 204 ////////////////////////END PYTHON///////////////////////////
 205
 206 //////////////////MY MAPS////////////////////////////////////////
 207 namespace {
 208 TopTools_IndexedMapOfShape FacesWithSizeMap;
 209 std::map<int,string> FaceId2SizeMap;
 210 TopTools_IndexedMapOfShape EdgesWithSizeMap;
 211 std::map<int,string> EdgeId2SizeMap;
 212 TopTools_IndexedMapOfShape VerticesWithSizeMap;
 213 std::map<int,string> VertexId2SizeMap;
 214
 215 std::map<int,PyObject*> FaceId2PythonSmp;
 216 std::map<int,PyObject*> EdgeId2PythonSmp;
 217 std::map<int,PyObject*> VertexId2PythonSmp;
 218
 219 typedef std::map<int, std::vector< BLSURFPlugin_Attractor* > > TId2ClsAttractorVec;
 220 TId2ClsAttractorVec FaceId2ClassAttractor;
 221 TId2ClsAttractorVec FaceIndex2ClassAttractor;
 222 std::map<int,std::vector<double> > FaceId2AttractorCoords;
 223 int theNbAttractors;
 224
 225 TopTools_IndexedMapOfShape FacesWithEnforcedVertices;
 226 std::map< int, BLSURFPlugin_Hypothesis::TEnfVertexCoordsList > FaceId2EnforcedVertexCoords;
 227 std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexCoords > EnfVertexCoords2ProjVertex;
 228 std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexList > EnfVertexCoords2EnfVertexList;
 229
 230 bool HasSizeMapOnFace=false;
 231 bool HasSizeMapOnEdge=false;
 232 bool HasSizeMapOnVertex=false;
 233 //bool HasAttractorOnFace=false;
 234 }
 235 //=============================================================================
 236 /*!
 237  *
 238  */
 239 //=============================================================================
 240
 241 BLSURFPlugin_BLSURF::BLSURFPlugin_BLSURF(int hypId, int studyId,
 242                                                SMESH_Gen* gen)
 243   : SMESH_2D_Algo(hypId, studyId, gen)
 244 {
 245   _name = "MG-CADSurf";//"BLSURF";
 246   _shapeType = (1 << TopAbs_FACE); // 1 bit /shape type
 247   _compatibleHypothesis.push_back(BLSURFPlugin_Hypothesis::GetHypType());
 248   _compatibleHypothesis.push_back(StdMeshers_ViscousLayers2D::GetHypType());
 249   _requireDiscreteBoundary = false;
 250   _onlyUnaryInput = false;
 251   _hypothesis = NULL;
 252   _supportSubmeshes = true;
 253
 254   smeshGen_i = SMESH_Gen_i::GetSMESHGen();
 255   CORBA::Object_var anObject = smeshGen_i->GetNS()->Resolve("/myStudyManager");
 256   SALOMEDS::StudyManager_var aStudyMgr = SALOMEDS::StudyManager::_narrow(anObject);
 257
 258   myStudy = NULL;
 259   myStudy = aStudyMgr->GetStudyByID(_studyId);
 260
 261   /* Initialize the Python interpreter */
 262   assert(Py_IsInitialized());
 263   PyGILState_STATE gstate;
 264   gstate = PyGILState_Ensure();
 265
 266   main_mod = NULL;
 267   main_mod = PyImport_AddModule("__main__");
 268
 269   main_dict = NULL;
 270   main_dict = PyModule_GetDict(main_mod);
 271
 272   PyRun_SimpleString("from math import *");
 273   PyGILState_Release(gstate);
 274
 275   FacesWithSizeMap.Clear();
 276   FaceId2SizeMap.clear();
 277   EdgesWithSizeMap.Clear();
 278   EdgeId2SizeMap.clear();
 279   VerticesWithSizeMap.Clear();
 280   VertexId2SizeMap.clear();
 281   FaceId2PythonSmp.clear();
 282   EdgeId2PythonSmp.clear();
 283   VertexId2PythonSmp.clear();
 284   FaceId2AttractorCoords.clear();
 285   FaceId2ClassAttractor.clear();
 286   FaceIndex2ClassAttractor.clear();
 287   FacesWithEnforcedVertices.Clear();
 288   FaceId2EnforcedVertexCoords.clear();
 289   EnfVertexCoords2ProjVertex.clear();
 290   EnfVertexCoords2EnfVertexList.clear();
 291
 292   _compute_canceled = false;
 293 }
 294
 295 //=============================================================================
 296 /*!
 297  *
 298  */
 299 //=============================================================================
 300
 301 BLSURFPlugin_BLSURF::~BLSURFPlugin_BLSURF()
 302 {
 303 }
 304
 305
 306 //=============================================================================
 307 /*!
 308  *
 309  */
 310 //=============================================================================
 311
 312 bool BLSURFPlugin_BLSURF::CheckHypothesis
 313                          (SMESH_Mesh&                          aMesh,
 314                           const TopoDS_Shape&                  aShape,
 315                           SMESH_Hypothesis::Hypothesis_Status& aStatus)
 316 {
 317   _hypothesis        = NULL;
 318   _haveViscousLayers = false;
 319
 320   list<const SMESHDS_Hypothesis*>::const_iterator itl;
 321   const SMESHDS_Hypothesis* theHyp;
 322
 323   const list<const SMESHDS_Hypothesis*>& hyps = GetUsedHypothesis(aMesh, aShape,
 324                                                                   /*ignoreAuxiliary=*/false);
 325   aStatus = SMESH_Hypothesis::HYP_OK;
 326   if ( hyps.empty() )
 327   {
 328     return true;  // can work with no hypothesis
 329   }
 330
 331   for ( itl = hyps.begin(); itl != hyps.end() && ( aStatus == HYP_OK ); ++itl )
 332   {
 333     theHyp = *itl;
 334     string hypName = theHyp->GetName();
 335     if ( hypName == BLSURFPlugin_Hypothesis::GetHypType() )
 336     {
 337       _hypothesis = static_cast<const BLSURFPlugin_Hypothesis*> (theHyp);
 338       ASSERT(_hypothesis);
 339       if ( _hypothesis->GetPhysicalMesh() == BLSURFPlugin_Hypothesis::DefaultSize &&
 340            _hypothesis->GetGeometricMesh() == BLSURFPlugin_Hypothesis::DefaultGeom )
 341         //  hphy_flag = 0 and hgeo_flag = 0 is not allowed (spec)
 342         aStatus = SMESH_Hypothesis::HYP_BAD_PARAMETER;
 343     }
 344     else if ( hypName == StdMeshers_ViscousLayers2D::GetHypType() )
 345     {
 346       if ( !_haveViscousLayers )
 347       {
 348         if ( error( StdMeshers_ViscousLayers2D::CheckHypothesis( aMesh, aShape, aStatus )))
 349           _haveViscousLayers = true;
 350       }
 351     }
 352     else
 353     {
 354       aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
 355     }
 356   }
 357   return aStatus == SMESH_Hypothesis::HYP_OK;
 358 }
 359
 360 //=============================================================================
 361 /*!
 362  * Pass parameters to MG-CADSurf
 363  */
 364 //=============================================================================
 365
 366 inline std::string val_to_string(double d)
 367 {
 368    std::ostringstream o;
 369    o << d;
 370    return o.str();
 371 }
 372
 373 inline std::string val_to_string_rel(double d)
 374 {
 375    std::ostringstream o;
 376    o << d;
 377    o << 'r';
 378    return o.str();
 379 }
 380
 381 inline std::string val_to_string(int i)
 382 {
 383    std::ostringstream o;
 384    o << i;
 385    return o.str();
 386 }
 387
 388 inline std::string val_to_string_rel(int i)
 389 {
 390    std::ostringstream o;
 391    o << i;
 392    o << 'r';
 393    return o.str();
 394 }
 395
 396 double _smp_phy_size;
 397 status_t size_on_surface(integer face_id, real *uv, real *size, void *user_data);
 398 status_t size_on_edge(integer edge_id, real t, real *size, void *user_data);
 399 status_t size_on_vertex(integer vertex_id, real *size, void *user_data);
 400
 401 typedef struct {
 402         gp_XY uv;
 403         gp_XYZ xyz;
 404 } projectionPoint;
 405 /////////////////////////////////////////////////////////
 406 projectionPoint getProjectionPoint(const TopoDS_Face& face, const gp_Pnt& point)
 407 {
 408   projectionPoint myPoint;
 409   Handle(Geom_Surface) surface = BRep_Tool::Surface(face);
 410   GeomAPI_ProjectPointOnSurf projector( point, surface );
 411   if ( !projector.IsDone() || projector.NbPoints()==0 )
 412     throw "getProjectionPoint: Can't project";
 413
 414   Quantity_Parameter u,v;
 415   projector.LowerDistanceParameters(u,v);
 416   myPoint.uv = gp_XY(u,v);
 417   gp_Pnt aPnt = projector.NearestPoint();
 418   myPoint.xyz = gp_XYZ(aPnt.X(),aPnt.Y(),aPnt.Z());
 419   //return gp_XY(u,v);
 420   return myPoint;
 421 }
 422 /////////////////////////////////////////////////////////
 423
 424 /////////////////////////////////////////////////////////
 425 double getT(const TopoDS_Edge& edge, const gp_Pnt& point)
 426 {
 427   Standard_Real f,l;
 428   Handle(Geom_Curve) curve = BRep_Tool::Curve(edge, f,l);
 429   GeomAPI_ProjectPointOnCurve projector( point, curve);
 430   if ( projector.NbPoints() == 0 )
 431     throw;
 432   return projector.LowerDistanceParameter();
 433 }
 434
 435 /////////////////////////////////////////////////////////
 436 TopoDS_Shape BLSURFPlugin_BLSURF::entryToShape(std::string entry)
 437 {
 438   TopoDS_Shape S;
 439   if ( !entry.empty() )
 440   {
 441     GEOM::GEOM_Object_var aGeomObj;
 442     SALOMEDS::SObject_var aSObj = myStudy->FindObjectID( entry.c_str() );
 443     if (!aSObj->_is_nil()) {
 444       CORBA::Object_var obj = aSObj->GetObject();
 445       aGeomObj = GEOM::GEOM_Object::_narrow(obj);
 446       aSObj->UnRegister();
 447     }
 448     if ( !aGeomObj->_is_nil() )
 449       S = smeshGen_i->GeomObjectToShape( aGeomObj.in() );
 450   }
 451   return S;
 452 }
 453
 454 void _createEnforcedVertexOnFace(TopoDS_Face faceShape, gp_Pnt aPnt, BLSURFPlugin_Hypothesis::TEnfVertex *enfVertex)
 455 {
 456   BLSURFPlugin_Hypothesis::TEnfVertexCoords enf_coords, coords, s_coords;
 457
 458   // Get the (u,v) values of the enforced vertex on the face
 459   projectionPoint myPoint = getProjectionPoint(faceShape,aPnt);
 460
 461   enf_coords.push_back(aPnt.X());
 462   enf_coords.push_back(aPnt.Y());
 463   enf_coords.push_back(aPnt.Z());
 464
 465   coords.push_back(myPoint.uv.X());
 466   coords.push_back(myPoint.uv.Y());
 467   coords.push_back(myPoint.xyz.X());
 468   coords.push_back(myPoint.xyz.Y());
 469   coords.push_back(myPoint.xyz.Z());
 470
 471   s_coords.push_back(myPoint.xyz.X());
 472   s_coords.push_back(myPoint.xyz.Y());
 473   s_coords.push_back(myPoint.xyz.Z());
 474
 475   // Save pair projected vertex / enf vertex
 476   EnfVertexCoords2ProjVertex[s_coords] = enf_coords;
 477   pair<BLSURFPlugin_Hypothesis::TEnfVertexList::iterator,bool> ret;
 478   BLSURFPlugin_Hypothesis::TEnfVertexList::iterator it;
 479   ret = EnfVertexCoords2EnfVertexList[s_coords].insert(enfVertex);
 480   if (ret.second == false) {
 481     it = ret.first;
 482     (*it)->grpName = enfVertex->grpName;
 483   }
 484
 485   int key = 0;
 486   if (! FacesWithEnforcedVertices.Contains(faceShape)) {
 487     key = FacesWithEnforcedVertices.Add(faceShape);
 488   }
 489   else {
 490     key = FacesWithEnforcedVertices.FindIndex(faceShape);
 491   }
 492
 493   // If a node is already created by an attractor, do not create enforced vertex
 494   int attractorKey = FacesWithSizeMap.FindIndex(faceShape);
 495   bool sameAttractor = false;
 496   if (attractorKey >= 0)
 497     if (FaceId2AttractorCoords.count(attractorKey) > 0)
 498       if (FaceId2AttractorCoords[attractorKey] == coords)
 499         sameAttractor = true;
 500
 501   if (FaceId2EnforcedVertexCoords.find(key) != FaceId2EnforcedVertexCoords.end()) {
 502     if (! sameAttractor)
 503       FaceId2EnforcedVertexCoords[key].insert(coords); // there should be no redondant coords here (see std::set management)
 504   }
 505   else {
 506     if (! sameAttractor) {
 507       BLSURFPlugin_Hypothesis::TEnfVertexCoordsList ens;
 508       ens.insert(coords);
 509       FaceId2EnforcedVertexCoords[key] = ens;
 510     }
 511   }
 512 }
 513
 514 /*!
 515  * \brief Find geom faces supporting given points
 516  */
 517 TopoDS_Shape BLSURFPlugin_BLSURF::
 518 findFaces( const BLSURFPlugin_Hypothesis::TEnfVertexList& enfVertexList )
 519 {
 520   // get points from enfVertexList
 521   vector< gp_Pnt > points;
 522   BLSURFPlugin_Hypothesis::TEnfVertexList::const_iterator enfVertexListIt = enfVertexList.begin();
 523   for( ; enfVertexListIt != enfVertexList.end() ; ++enfVertexListIt )
 524   {
 525     BLSURFPlugin_Hypothesis::TEnfVertex * enfVertex = *enfVertexListIt;
 526     if ( enfVertex->coords.size() >= 3 )
 527     {
 528       points.push_back( gp_Pnt( enfVertex->coords[0], enfVertex->coords[1], enfVertex->coords[2]));
 529     }
 530     else
 531     {
 532       TopoDS_Shape GeomShape = entryToShape( enfVertex->geomEntry );
 533       if ( !GeomShape.IsNull() )
 534       {
 535         if ( GeomShape.ShapeType() == TopAbs_VERTEX )
 536           points.push_back( BRep_Tool::Pnt( TopoDS::Vertex( GeomShape )));
 537
 538         else if ( GeomShape.ShapeType() == TopAbs_COMPOUND)
 539           for (TopoDS_Iterator it (GeomShape); it.More(); it.Next())
 540            if ( it.Value().ShapeType() == TopAbs_VERTEX )
 541              points.push_back( BRep_Tool::Pnt( TopoDS::Vertex( it.Value() )));
 542       }
 543     }
 544   }
 545
 546   TopoDS_Shape resultShape, myShape = myHelper->GetSubShape();
 547   TopoDS_Compound compound;
 548
 549   for ( size_t i = 0; i <= points.size(); ++i )
 550   {
 551     TopoDS_Face foundFace;
 552     TopTools_MapOfShape checkedFaces;
 553     std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > > dist2face;
 554
 555     for ( TopExp_Explorer exp ( myShape, TopAbs_FACE ); exp.More(); exp.Next())
 556     {
 557       const TopoDS_Face& face = TopoDS::Face( exp.Current() );
 558       if ( !checkedFaces.Add( face )) continue;
 559
 560       // check distance to face
 561       Handle(ShapeAnalysis_Surface) surface = myHelper->GetSurface( face );
 562       gp_Pnt2d uv = surface->ValueOfUV( points[i], Precision::Confusion());
 563       double distance = surface->Gap();
 564       if ( distance > Precision::Confusion() )
 565       {
 566         // the face is far, store for future analysis
 567         dist2face.insert( std::make_pair( distance, std::make_pair( face, uv )));
 568       }
 569       else
 570       {
 571         // check location on the face
 572         BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
 573         if ( FC.State() == TopAbs_IN )
 574         {
 575           foundFace = face;
 576           break;
 577         }
 578       }
 579     }
 580     if ( foundFace.IsNull() )
 581     {
 582       // find the closest face
 583       std::map< double, std::pair< TopoDS_Face, gp_Pnt2d > >::iterator d2f = dist2face.begin();
 584       for ( ; d2f != dist2face.end(); ++d2f )
 585       {
 586         const TopoDS_Face& face = d2f->second.first;
 587         const gp_Pnt2d &     uv = d2f->second.second;
 588         BRepClass_FaceClassifier FC( face, uv, Precision::Confusion());
 589         if ( FC.State() == TopAbs_IN )
 590         {
 591           foundFace = face;
 592           break;
 593         }
 594       }
 595     }
 596     // set the resultShape
 597     if ( !foundFace.IsNull() )
 598     {
 599       if ( resultShape.IsNull() )
 600       {
 601         resultShape = foundFace;
 602       }
 603       else
 604       {
 605         BRep_Builder builder;
 606         if ( compound.IsNull() )
 607         {
 608           builder.MakeCompound( compound );
 609           resultShape = compound;
 610         }
 611         builder.Add( compound, foundFace );
 612       }
 613     }
 614   } // loop on points
 615
 616   return resultShape;
 617 }
 618
 619 /////////////////////////////////////////////////////////
 620 void BLSURFPlugin_BLSURF::createEnforcedVertexOnFace(TopoDS_Shape faceShape, BLSURFPlugin_Hypothesis::TEnfVertexList enfVertexList)
 621 {
 622   BLSURFPlugin_Hypothesis::TEnfVertex* enfVertex;
 623   gp_Pnt aPnt;
 624
 625   BLSURFPlugin_Hypothesis::TEnfVertexList::const_iterator enfVertexListIt = enfVertexList.begin();
 626
 627   for( ; enfVertexListIt != enfVertexList.end() ; ++enfVertexListIt ) {
 628     enfVertex = *enfVertexListIt;
 629     // Case of manual coords
 630     if (enfVertex->coords.size() != 0) {
 631       aPnt.SetCoord(enfVertex->coords[0],enfVertex->coords[1],enfVertex->coords[2]);
 632       _createEnforcedVertexOnFace( TopoDS::Face(faceShape),  aPnt, enfVertex);
 633     }
 634
 635     // Case of geom vertex coords
 636     if (enfVertex->geomEntry != "") {
 637       TopoDS_Shape GeomShape = entryToShape(enfVertex->geomEntry);
 638       TopAbs_ShapeEnum GeomType  = GeomShape.ShapeType();
 639        if (GeomType == TopAbs_VERTEX){
 640          aPnt = BRep_Tool::Pnt(TopoDS::Vertex(GeomShape));
 641          _createEnforcedVertexOnFace( TopoDS::Face(faceShape),  aPnt, enfVertex);
 642        }
 643        // Group Management
 644        if (GeomType == TopAbs_COMPOUND){
 645          for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
 646            if (it.Value().ShapeType() == TopAbs_VERTEX){
 647              aPnt = BRep_Tool::Pnt(TopoDS::Vertex(it.Value()));
 648              _createEnforcedVertexOnFace( TopoDS::Face(faceShape),  aPnt, enfVertex);
 649            }
 650          }
 651        }
 652     }
 653   }
 654 }
 655
 656 /////////////////////////////////////////////////////////
 657 void createAttractorOnFace(TopoDS_Shape GeomShape, std::string AttractorFunction, double defaultSize)
 658 {
 659   double xa, ya, za; // Coordinates of attractor point
 660   double a, b;       // Attractor parameter
 661   double d = 0.;
 662   bool createNode=false; // To create a node on attractor projection
 663   size_t pos1, pos2;
 664   const char *sep = ";";
 665   // atIt->second has the following pattern:
 666   // ATTRACTOR(xa;ya;za;a;b;True|False;d)
 667   // where:
 668   // xa;ya;za : coordinates of  attractor
 669   // a        : desired size on attractor
 670   // b        : distance of influence of attractor
 671   // d        : distance until which the size remains constant
 672   //
 673   // We search the parameters in the string
 674   // xa
 675   pos1 = AttractorFunction.find(sep);
 676   if (pos1!=string::npos)
 677   xa = atof(AttractorFunction.substr(10, pos1-10).c_str());
 678   // ya
 679   pos2 = AttractorFunction.find(sep, pos1+1);
 680   if (pos2!=string::npos) {
 681   ya = atof(AttractorFunction.substr(pos1+1, pos2-pos1-1).c_str());
 682   pos1 = pos2;
 683   }
 684   // za
 685   pos2 = AttractorFunction.find(sep, pos1+1);
 686   if (pos2!=string::npos) {
 687   za = atof(AttractorFunction.substr(pos1+1, pos2-pos1-1).c_str());
 688   pos1 = pos2;
 689   }
 690   // a
 691   pos2 = AttractorFunction.find(sep, pos1+1);
 692   if (pos2!=string::npos) {
 693   a = atof(AttractorFunction.substr(pos1+1, pos2-pos1-1).c_str());
 694   pos1 = pos2;
 695   }
 696   // b
 697   pos2 = AttractorFunction.find(sep, pos1+1);
 698   if (pos2!=string::npos) {
 699   b = atof(AttractorFunction.substr(pos1+1, pos2-pos1-1).c_str());
 700   pos1 = pos2;
 701   }
 702   // createNode
 703   pos2 = AttractorFunction.find(sep, pos1+1);
 704   if (pos2!=string::npos) {
 705     string createNodeStr = AttractorFunction.substr(pos1+1, pos2-pos1-1);
 706     createNode = (AttractorFunction.substr(pos1+1, pos2-pos1-1) == "True");
 707     pos1=pos2;
 708   }
 709   // d
 710   pos2 = AttractorFunction.find(")");
 711   if (pos2!=string::npos) {
 712   d = atof(AttractorFunction.substr(pos1+1, pos2-pos1-1).c_str());
 713   }
 714
 715   // Get the (u,v) values of the attractor on the face
 716   projectionPoint myPoint = getProjectionPoint(TopoDS::Face(GeomShape),gp_Pnt(xa,ya,za));
 717   gp_XY uvPoint = myPoint.uv;
 718   gp_XYZ xyzPoint = myPoint.xyz;
 719   Standard_Real u0 = uvPoint.X();
 720   Standard_Real v0 = uvPoint.Y();
 721   Standard_Real x0 = xyzPoint.X();
 722   Standard_Real y0 = xyzPoint.Y();
 723   Standard_Real z0 = xyzPoint.Z();
 724   std::vector<double> coords;
 725   coords.push_back(u0);
 726   coords.push_back(v0);
 727   coords.push_back(x0);
 728   coords.push_back(y0);
 729   coords.push_back(z0);
 730   // We construct the python function
 731   ostringstream attractorFunctionStream;
 732   attractorFunctionStream << "def f(u,v): return ";
 733   attractorFunctionStream << defaultSize << "-(" << defaultSize <<"-" << a << ")";
 734   //attractorFunctionStream << "*exp(-((u-("<<u0<<"))*(u-("<<u0<<"))+(v-("<<v0<<"))*(v-("<<v0<<")))/(" << b << "*" << b <<"))";
 735   // rnc: make possible to keep the size constant until
 736   // a defined distance. Distance is expressed as the positiv part
 737   // of r-d where r is the distance to (u0,v0)
 738   attractorFunctionStream << "*exp(-(0.5*(sqrt((u-"<<u0<<")**2+(v-"<<v0<<")**2)-"<<d<<"+abs(sqrt((u-"<<u0<<")**2+(v-"<<v0<<")**2)-"<<d<<"))/(" << b << "))**2)";
 739
 740   int key;
 741   if (! FacesWithSizeMap.Contains(TopoDS::Face(GeomShape))) {
 742     key = FacesWithSizeMap.Add(TopoDS::Face(GeomShape));
 743   }
 744   else {
 745     key = FacesWithSizeMap.FindIndex(TopoDS::Face(GeomShape));
 746   }
 747   FaceId2SizeMap[key] =attractorFunctionStream.str();
 748   if (createNode) {
 749     FaceId2AttractorCoords[key] = coords;
 750   }
 751 //   // Test for new attractors
 752 //   gp_Pnt myP(xyzPoint);
 753 //   TopoDS_Vertex myV = BRepBuilderAPI_MakeVertex(myP);
 754 //   BLSURFPlugin_Attractor myAttractor(TopoDS::Face(GeomShape),myV,200);
 755 //   myAttractor.SetParameters(a, defaultSize, b, d);
 756 //   myAttractor.SetType(1);
 757 //   FaceId2ClassAttractor[key] = myAttractor;
 758 //   if(FaceId2ClassAttractor[key].GetFace().IsNull()){
 759 //   }
 760 }
 761
 762 // One sub-shape to get ids from
 763 BLSURFPlugin_BLSURF::TListOfIDs _getSubShapeIDsInMainShape(TopoDS_Shape theMainShape, TopoDS_Shape theSubShape,
 764     TopAbs_ShapeEnum theShapeType)
 765 {
 766   BLSURFPlugin_BLSURF::TListOfIDs face_ids;
 767   TopTools_IndexedMapOfShape anIndices;
 768   anIndices.Clear();
 769   TopExp::MapShapes(theMainShape, theShapeType, anIndices);
 770
 771 //  Standard_Boolean result = BRepTools::Write(theMainShape,"main_shape.brep");
 772
 773   for (TopExp_Explorer face_iter(theSubShape,theShapeType);face_iter.More();face_iter.Next())
 774     {
 775       int face_id = anIndices.FindIndex(face_iter.Current());
 776       if (face_id == 0)
 777         throw SALOME_Exception ( SMESH_Comment("Sub_shape not found in main_shape"));
 778       face_ids.push_back(face_id);
 779 //      std::ostringstream o;
 780 //      o << "face_" << face_id << ".brep";
 781 //      std::string face_name = o.str();
 782 //      const TopoDS_Face& face = TopoDS::Face(face_iter.Current());
 783 //      Standard_Boolean result = BRepTools::Write(face,face_name.c_str());
 784     }
 785
 786   return face_ids;
 787 }
 788
 789 BLSURFPlugin_BLSURF::TListOfIDs _getSubShapeIDsInMainShape(SMESH_Mesh*      theMesh,
 790                                                            TopoDS_Shape     theSubShape,
 791                                                            TopAbs_ShapeEnum theShapeType)
 792 {
 793   BLSURFPlugin_BLSURF::TListOfIDs face_ids;
 794
 795   for (TopExp_Explorer face_iter(theSubShape,theShapeType);face_iter.More();face_iter.Next())
 796   {
 797     int face_id = theMesh->GetMeshDS()->ShapeToIndex(face_iter.Current());
 798     if (face_id == 0)
 799       throw SALOME_Exception ( SMESH_Comment("Sub_shape not found in main_shape"));
 800     face_ids.push_back(face_id);
 801   }
 802
 803   return face_ids;
 804 }
 805
 806 void BLSURFPlugin_BLSURF::addCoordsFromVertices(const std::vector<std::string> &theVerticesEntries, std::vector<double> &theVerticesCoords)
 807 {
 808   for (std::vector<std::string>::const_iterator it = theVerticesEntries.begin(); it != theVerticesEntries.end(); it++)
 809   {
 810     BLSURFPlugin_Hypothesis::TEntry theVertexEntry = *it;
 811     addCoordsFromVertex(theVertexEntry, theVerticesCoords);
 812   }
 813 }
 814
 815
 816 void BLSURFPlugin_BLSURF::addCoordsFromVertex(BLSURFPlugin_Hypothesis::TEntry theVertexEntry, std::vector<double> &theVerticesCoords)
 817 {
 818   if (theVertexEntry!="")
 819   {
 820     TopoDS_Shape aShape = entryToShape(theVertexEntry);
 821
 822     gp_Pnt aPnt = BRep_Tool::Pnt( TopoDS::Vertex( aShape ) );
 823     double theX, theY, theZ;
 824     theX = aPnt.X();
 825     theY = aPnt.Y();
 826     theZ = aPnt.Z();
 827
 828     theVerticesCoords.push_back(theX);
 829     theVerticesCoords.push_back(theY);
 830     theVerticesCoords.push_back(theZ);
 831   }
 832 }
 833
 834 /////////////////////////////////////////////////////////
 835 void BLSURFPlugin_BLSURF::createPreCadFacesPeriodicity(TopoDS_Shape theGeomShape, const BLSURFPlugin_Hypothesis::TPreCadPeriodicity &preCadPeriodicity)
 836 {
 837   TopoDS_Shape geomShape1 = entryToShape(preCadPeriodicity.shape1Entry);
 838   TopoDS_Shape geomShape2 = entryToShape(preCadPeriodicity.shape2Entry);
 839
 840   TListOfIDs theFace1_ids = _getSubShapeIDsInMainShape(theGeomShape, geomShape1, TopAbs_FACE);
 841   TListOfIDs theFace2_ids = _getSubShapeIDsInMainShape(theGeomShape, geomShape2, TopAbs_FACE);
 842
 843   TPreCadPeriodicityIDs preCadFacesPeriodicityIDs;
 844   preCadFacesPeriodicityIDs.shape1IDs = theFace1_ids;
 845   preCadFacesPeriodicityIDs.shape2IDs = theFace2_ids;
 846
 847   addCoordsFromVertices(preCadPeriodicity.theSourceVerticesEntries, preCadFacesPeriodicityIDs.theSourceVerticesCoords);
 848   addCoordsFromVertices(preCadPeriodicity.theTargetVerticesEntries, preCadFacesPeriodicityIDs.theTargetVerticesCoords);
 849
 850   _preCadFacesIDsPeriodicityVector.push_back(preCadFacesPeriodicityIDs);
 851 }
 852
 853 /////////////////////////////////////////////////////////
 854 void BLSURFPlugin_BLSURF::createPreCadEdgesPeriodicity(TopoDS_Shape theGeomShape, const BLSURFPlugin_Hypothesis::TPreCadPeriodicity &preCadPeriodicity)
 855 {
 856   TopoDS_Shape geomShape1 = entryToShape(preCadPeriodicity.shape1Entry);
 857   TopoDS_Shape geomShape2 = entryToShape(preCadPeriodicity.shape2Entry);
 858
 859   TListOfIDs theEdge1_ids = _getSubShapeIDsInMainShape(theGeomShape, geomShape1, TopAbs_EDGE);
 860   TListOfIDs theEdge2_ids = _getSubShapeIDsInMainShape(theGeomShape, geomShape2, TopAbs_EDGE);
 861
 862   TPreCadPeriodicityIDs preCadEdgesPeriodicityIDs;
 863   preCadEdgesPeriodicityIDs.shape1IDs = theEdge1_ids;
 864   preCadEdgesPeriodicityIDs.shape2IDs = theEdge2_ids;
 865
 866   addCoordsFromVertices(preCadPeriodicity.theSourceVerticesEntries, preCadEdgesPeriodicityIDs.theSourceVerticesCoords);
 867   addCoordsFromVertices(preCadPeriodicity.theTargetVerticesEntries, preCadEdgesPeriodicityIDs.theTargetVerticesCoords);
 868
 869   _preCadEdgesIDsPeriodicityVector.push_back(preCadEdgesPeriodicityIDs);
 870 }
 871
 872
 873 /////////////////////////////////////////////////////////
 874
 875 void BLSURFPlugin_BLSURF::SetParameters(const BLSURFPlugin_Hypothesis* hyp,
 876                                         cadsurf_session_t *            css,
 877                                         const TopoDS_Shape&            theGeomShape
 878                                         )
 879 {
 880   // rnc : Bug 1457
 881   // Clear map so that it is not stored in the algorithm with old enforced vertices in it
 882   EnfVertexCoords2EnfVertexList.clear();
 883
 884   double diagonal               = SMESH_Mesh::GetShapeDiagonalSize( theGeomShape );
 885   double bbSegmentation         = _gen->GetBoundaryBoxSegmentation();
 886   int    _physicalMesh          = BLSURFPlugin_Hypothesis::GetDefaultPhysicalMesh();
 887   int    _geometricMesh         = BLSURFPlugin_Hypothesis::GetDefaultGeometricMesh();
 888   double _phySize               = BLSURFPlugin_Hypothesis::GetDefaultPhySize(diagonal, bbSegmentation);
 889   bool   _phySizeRel            = BLSURFPlugin_Hypothesis::GetDefaultPhySizeRel();
 890   double _minSize               = BLSURFPlugin_Hypothesis::GetDefaultMinSize(diagonal);
 891   bool   _minSizeRel            = BLSURFPlugin_Hypothesis::GetDefaultMinSizeRel();
 892   double _maxSize               = BLSURFPlugin_Hypothesis::GetDefaultMaxSize(diagonal);
 893   bool   _maxSizeRel            = BLSURFPlugin_Hypothesis::GetDefaultMaxSizeRel();
 894   double _use_gradation         = BLSURFPlugin_Hypothesis::GetDefaultUseGradation();
 895   double _gradation             = BLSURFPlugin_Hypothesis::GetDefaultGradation();
 896   double _use_volume_gradation  = BLSURFPlugin_Hypothesis::GetDefaultUseVolumeGradation();
 897   double _volume_gradation      = BLSURFPlugin_Hypothesis::GetDefaultVolumeGradation();
 898   bool   _quadAllowed           = BLSURFPlugin_Hypothesis::GetDefaultQuadAllowed();
 899   double _angleMesh             = BLSURFPlugin_Hypothesis::GetDefaultAngleMesh();
 900   double _chordalError          = BLSURFPlugin_Hypothesis::GetDefaultChordalError(diagonal);
 901   bool   _anisotropic           = BLSURFPlugin_Hypothesis::GetDefaultAnisotropic();
 902   double _anisotropicRatio      = BLSURFPlugin_Hypothesis::GetDefaultAnisotropicRatio();
 903   bool   _removeTinyEdges       = BLSURFPlugin_Hypothesis::GetDefaultRemoveTinyEdges();
 904   double _tinyEdgeLength        = BLSURFPlugin_Hypothesis::GetDefaultTinyEdgeLength(diagonal);
 905   bool   _optimiseTinyEdges     = BLSURFPlugin_Hypothesis::GetDefaultOptimiseTinyEdges();
 906   double _tinyEdgeOptimisLength = BLSURFPlugin_Hypothesis::GetDefaultTinyEdgeOptimisationLength(diagonal);
 907   bool   _correctSurfaceIntersec= BLSURFPlugin_Hypothesis::GetDefaultCorrectSurfaceIntersection();
 908   double _corrSurfaceIntersCost = BLSURFPlugin_Hypothesis::GetDefaultCorrectSurfaceIntersectionMaxCost();
 909   bool   _badElementRemoval     = BLSURFPlugin_Hypothesis::GetDefaultBadElementRemoval();
 910   double _badElementAspectRatio = BLSURFPlugin_Hypothesis::GetDefaultBadElementAspectRatio();
 911   bool   _optimizeMesh          = BLSURFPlugin_Hypothesis::GetDefaultOptimizeMesh();
 912   bool   _quadraticMesh         = BLSURFPlugin_Hypothesis::GetDefaultQuadraticMesh();
 913   int    _verb                  = BLSURFPlugin_Hypothesis::GetDefaultVerbosity();
 914   //int    _topology              = BLSURFPlugin_Hypothesis::GetDefaultTopology();
 915
 916   // PreCAD
 917   //int _precadMergeEdges         = BLSURFPlugin_Hypothesis::GetDefaultPreCADMergeEdges();
 918   int _precadRemoveTinyUVEdges  = BLSURFPlugin_Hypothesis::GetDefaultPreCADRemoveTinyUVEdges();
 919   //int _precadRemoveDuplicateCADFaces = BLSURFPlugin_Hypothesis::GetDefaultPreCADRemoveDuplicateCADFaces();
 920   //int _precadProcess3DTopology  = BLSURFPlugin_Hypothesis::GetDefaultPreCADProcess3DTopology();
 921   //int _precadDiscardInput       = BLSURFPlugin_Hypothesis::GetDefaultPreCADDiscardInput();
 922
 923
 924   if (hyp) {
 925     _physicalMesh  = (int) hyp->GetPhysicalMesh();
 926     _geometricMesh = (int) hyp->GetGeometricMesh();
 927     if (hyp->GetPhySize() > 0) {
 928       _phySize       = hyp->GetPhySize();
 929       // if user size is not explicitly specified, "relative" flag is ignored
 930       _phySizeRel    = hyp->IsPhySizeRel();
 931     }
 932     if (hyp->GetMinSize() > 0) {
 933       _minSize       = hyp->GetMinSize();
 934       // if min size is not explicitly specified, "relative" flag is ignored
 935       _minSizeRel    = hyp->IsMinSizeRel();
 936     }
 937     if (hyp->GetMaxSize() > 0) {
 938       _maxSize       = hyp->GetMaxSize();
 939       // if max size is not explicitly specified, "relative" flag is ignored
 940       _maxSizeRel    = hyp->IsMaxSizeRel();
 941     }
 942     _use_gradation = hyp->GetUseGradation();
 943     if (hyp->GetGradation() > 0 && _use_gradation)
 944       _gradation     = hyp->GetGradation();
 945     _use_volume_gradation    = hyp->GetUseVolumeGradation();
 946     if (hyp->GetVolumeGradation() > 0 && _use_volume_gradation )
 947       _volume_gradation      = hyp->GetVolumeGradation();
 948     _quadAllowed     = hyp->GetQuadAllowed();
 949     if (hyp->GetAngleMesh() > 0)
 950       _angleMesh     = hyp->GetAngleMesh();
 951     if (hyp->GetChordalError() > 0)
 952       _chordalError          = hyp->GetChordalError();
 953     _anisotropic             = hyp->GetAnisotropic();
 954     if (hyp->GetAnisotropicRatio() >= 0)
 955       _anisotropicRatio      = hyp->GetAnisotropicRatio();
 956     _removeTinyEdges         = hyp->GetRemoveTinyEdges();
 957     if (hyp->GetTinyEdgeLength() > 0)
 958       _tinyEdgeLength        = hyp->GetTinyEdgeLength();
 959     _optimiseTinyEdges       = hyp->GetOptimiseTinyEdges();
 960     if (hyp->GetTinyEdgeOptimisationLength() > 0)
 961       _tinyEdgeOptimisLength = hyp->GetTinyEdgeOptimisationLength();
 962     _correctSurfaceIntersec  = hyp->GetCorrectSurfaceIntersection();
 963     if (hyp->GetCorrectSurfaceIntersectionMaxCost() > 0)
 964       _corrSurfaceIntersCost = hyp->GetCorrectSurfaceIntersectionMaxCost();
 965     _badElementRemoval       = hyp->GetBadElementRemoval();
 966     if (hyp->GetBadElementAspectRatio() >= 0)
 967       _badElementAspectRatio = hyp->GetBadElementAspectRatio();
 968     _optimizeMesh  = hyp->GetOptimizeMesh();
 969     _quadraticMesh = hyp->GetQuadraticMesh();
 970     _verb          = hyp->GetVerbosity();
 971     //_topology      = (int) hyp->GetTopology();
 972     // PreCAD
 973     //_precadMergeEdges        = hyp->GetPreCADMergeEdges();
 974     _precadRemoveTinyUVEdges = hyp->GetPreCADRemoveTinyUVEdges();
 975     //_precadRemoveDuplicateCADFaces = hyp->GetPreCADRemoveDuplicateCADFaces();
 976     //_precadProcess3DTopology = hyp->GetPreCADProcess3DTopology();
 977     //_precadDiscardInput      = hyp->GetPreCADDiscardInput();
 978
 979     const BLSURFPlugin_Hypothesis::TOptionValues& opts = hyp->GetOptionValues();
 980     BLSURFPlugin_Hypothesis::TOptionValues::const_iterator opIt;
 981     for ( opIt = opts.begin(); opIt != opts.end(); ++opIt )
 982       if ( !opIt->second.empty() ) {
 983         set_param(css, opIt->first.c_str(), opIt->second.c_str());
 984       }
 985
 986     const BLSURFPlugin_Hypothesis::TOptionValues& custom_opts = hyp->GetCustomOptionValues();
 987     for ( opIt = custom_opts.begin(); opIt != custom_opts.end(); ++opIt )
 988       if ( !opIt->second.empty() ) {
 989         set_param(css, opIt->first.c_str(), opIt->second.c_str());
 990      }
 991
 992     const BLSURFPlugin_Hypothesis::TOptionValues& preCADopts = hyp->GetPreCADOptionValues();
 993     for ( opIt = preCADopts.begin(); opIt != preCADopts.end(); ++opIt )
 994       if ( !opIt->second.empty() ) {
 995         set_param(css, opIt->first.c_str(), opIt->second.c_str());
 996       }
 997   }
 998
 999   if ( BLSURFPlugin_Hypothesis::HasPreCADOptions( hyp ))
1000   {
1001     cadsurf_set_param(css, "use_precad", "yes" ); // for old versions
1002   }
1003   // PreProcessor (formerly PreCAD) -- commented params are preCADoptions (since 0023307)
1004   //set_param(css, "merge_edges",            _precadMergeEdges ? "yes" : "no");
1005   set_param(css, "remove_tiny_uv_edges",   _precadRemoveTinyUVEdges ? "yes" : "no");
1006   //set_param(css, "remove_duplicate_cad_faces", _precadRemoveDuplicateCADFaces ? "yes" : "no");
1007   //set_param(css, "process_3d_topology",    _precadProcess3DTopology ? "1" : "0");
1008   //set_param(css, "discard_input_topology", _precadDiscardInput ? "1" : "0");
1009   //set_param(css, "max_number_of_points_per_patch", "1000000");
1010
1011    bool useGradation = false;
1012    switch (_physicalMesh)
1013    {
1014      case BLSURFPlugin_Hypothesis::PhysicalGlobalSize:
1015        set_param(css, "physical_size_mode", "global");
1016        set_param(css, "global_physical_size", _phySizeRel ? val_to_string_rel(_phySize).c_str() : val_to_string(_phySize).c_str());
1017        break;
1018      case BLSURFPlugin_Hypothesis::PhysicalLocalSize:
1019        set_param(css, "physical_size_mode", "local");
1020        set_param(css, "global_physical_size", _phySizeRel ? val_to_string_rel(_phySize).c_str() : val_to_string(_phySize).c_str());
1021        useGradation = true;
1022        break;
1023      default:
1024        set_param(css, "physical_size_mode", "none");
1025    }
1026
1027    switch (_geometricMesh)
1028    {
1029      case BLSURFPlugin_Hypothesis::GeometricalGlobalSize:
1030        set_param(css, "geometric_size_mode", "global");
1031        set_param(css, "geometric_approximation", val_to_string(_angleMesh).c_str());
1032        set_param(css, "chordal_error", val_to_string(_chordalError).c_str());
1033        useGradation = true;
1034        break;
1035      case BLSURFPlugin_Hypothesis::GeometricalLocalSize:
1036        set_param(css, "geometric_size_mode", "local");
1037        set_param(css, "geometric_approximation", val_to_string(_angleMesh).c_str());
1038        set_param(css, "chordal_error", val_to_string(_chordalError).c_str());
1039        useGradation = true;
1040        break;
1041      default:
1042        set_param(css, "geometric_size_mode", "none");
1043    }
1044
1045    if ( hyp && hyp->GetPhySize() > 0 ) {
1046      // user size is explicitly specified via hypothesis parameters
1047      // min and max sizes should be compared with explicitly specified user size
1048      // - compute absolute min size
1049      double mins = _minSizeRel ? _minSize * diagonal : _minSize;
1050      // - min size should not be greater than user size
1051      if ( _phySize < mins )
1052        set_param(css, "min_size", _phySizeRel ? val_to_string_rel(_phySize).c_str() : val_to_string(_phySize).c_str());
1053      else
1054        set_param(css, "min_size", _minSizeRel ? val_to_string_rel(_minSize).c_str() : val_to_string(_minSize).c_str());
1055      // - compute absolute max size
1056      double maxs = _maxSizeRel ? _maxSize * diagonal : _maxSize;
1057      // - max size should not be less than user size
1058      if ( _phySize > maxs )
1059        set_param(css, "max_size", _phySizeRel ? val_to_string_rel(_phySize).c_str() : val_to_string(_phySize).c_str());
1060      else
1061        set_param(css, "max_size", _maxSizeRel ? val_to_string_rel(_maxSize).c_str() : val_to_string(_maxSize).c_str());
1062    }
1063    else {
1064      // user size is not explicitly specified
1065      // - if minsize is not explicitly specified, we pass default value computed automatically, in this case "relative" flag is ignored
1066      set_param(css, "min_size", _minSizeRel ? val_to_string_rel(_minSize).c_str() : val_to_string(_minSize).c_str());
1067      // - if maxsize is not explicitly specified, we pass default value computed automatically, in this case "relative" flag is ignored
1068      set_param(css, "max_size", _maxSizeRel ? val_to_string_rel(_maxSize).c_str() : val_to_string(_maxSize).c_str());
1069    }
1070    // anisotropic and quadrangle mesh requires disabling gradation
1071    if ( _anisotropic && _quadAllowed )
1072      useGradation = false; // limitation of V1.3
1073    if ( useGradation && _use_gradation )
1074      set_param(css, "gradation",                       val_to_string(_gradation).c_str());
1075    if ( useGradation && _use_volume_gradation )
1076      set_param(css, "volume_gradation",                val_to_string(_volume_gradation).c_str());
1077    set_param(css, "element_generation",                _quadAllowed ? "quad_dominant" : "triangle");
1078
1079
1080    set_param(css, "metric",                            _anisotropic ? "anisotropic" : "isotropic");
1081    if ( _anisotropic )
1082      set_param(css, "anisotropic_ratio",                 val_to_string(_anisotropicRatio).c_str());
1083    set_param(css, "remove_tiny_edges",                 _removeTinyEdges ? "1" : "0");
1084    if ( _removeTinyEdges )
1085      set_param(css, "tiny_edge_length",                  val_to_string(_tinyEdgeLength).c_str());
1086    set_param(css, "optimise_tiny_edges",               _optimiseTinyEdges ? "1" : "0");
1087    if ( _optimiseTinyEdges )
1088      set_param(css, "tiny_edge_optimisation_length",   val_to_string(_tinyEdgeOptimisLength).c_str());
1089    set_param(css, "correct_surface_intersections",     _correctSurfaceIntersec ? "1" : "0");
1090    if ( _correctSurfaceIntersec )
1091      set_param(css, "surface_intersections_processing_max_cost", val_to_string(_corrSurfaceIntersCost ).c_str());
1092    set_param(css, "force_bad_surface_element_removal", _badElementRemoval ? "1" : "0");
1093    if ( _badElementRemoval )
1094      set_param(css, "bad_surface_element_aspect_ratio",  val_to_string(_badElementAspectRatio).c_str());
1095    set_param(css, "optimisation",                      _optimizeMesh ? "yes" : "no");
1096    set_param(css, "element_order",                     _quadraticMesh ? "quadratic" : "linear");
1097    set_param(css, "verbose",                           val_to_string(_verb).c_str());
1098
1099    _smp_phy_size = _phySizeRel ? _phySize*diagonal : _phySize;
1100    if ( _verb > 0 )
1101      std::cout << "_smp_phy_size = " << _smp_phy_size << std::endl;
1102
1103    if (_physicalMesh == BLSURFPlugin_Hypothesis::PhysicalLocalSize)
1104    {
1105     TopoDS_Shape GeomShape;
1106     TopoDS_Shape AttShape;
1107     TopAbs_ShapeEnum GeomType;
1108     //
1109     // Standard Size Maps
1110     //
1111     const BLSURFPlugin_Hypothesis::TSizeMap sizeMaps = BLSURFPlugin_Hypothesis::GetSizeMapEntries(hyp);
1112     BLSURFPlugin_Hypothesis::TSizeMap::const_iterator smIt = sizeMaps.begin();
1113     for ( ; smIt != sizeMaps.end(); ++smIt ) {
1114       if ( !smIt->second.empty() ) {
1115         GeomShape = entryToShape(smIt->first);
1116         GeomType  = GeomShape.ShapeType();
1117         int key = -1;
1118         // Group Management
1119         if (GeomType == TopAbs_COMPOUND) {
1120           for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
1121             // Group of faces
1122             if (it.Value().ShapeType() == TopAbs_FACE){
1123               HasSizeMapOnFace = true;
1124               if (! FacesWithSizeMap.Contains(TopoDS::Face(it.Value()))) {
1125                 key = FacesWithSizeMap.Add(TopoDS::Face(it.Value()));
1126               }
1127               else {
1128                 key = FacesWithSizeMap.FindIndex(TopoDS::Face(it.Value()));
1129               }
1130               FaceId2SizeMap[key] = smIt->second;
1131             }
1132             // Group of edges
1133             if (it.Value().ShapeType() == TopAbs_EDGE){
1134               HasSizeMapOnEdge = true;
1135               HasSizeMapOnFace = true;
1136               if (! EdgesWithSizeMap.Contains(TopoDS::Edge(it.Value()))) {
1137                 key = EdgesWithSizeMap.Add(TopoDS::Edge(it.Value()));
1138               }
1139               else {
1140                 key = EdgesWithSizeMap.FindIndex(TopoDS::Edge(it.Value()));
1141               }
1142               EdgeId2SizeMap[key] = smIt->second;
1143             }
1144             // Group of vertices
1145             if (it.Value().ShapeType() == TopAbs_VERTEX){
1146               HasSizeMapOnVertex = true;
1147               HasSizeMapOnEdge = true;
1148               HasSizeMapOnFace = true;
1149               if (! VerticesWithSizeMap.Contains(TopoDS::Vertex(it.Value()))) {
1150                 key = VerticesWithSizeMap.Add(TopoDS::Vertex(it.Value()));
1151               }
1152               else {
1153                 key = VerticesWithSizeMap.FindIndex(TopoDS::Vertex(it.Value()));
1154               }
1155               VertexId2SizeMap[key] = smIt->second;
1156             }
1157           }
1158         }
1159         // Single face
1160         if (GeomType == TopAbs_FACE){
1161           HasSizeMapOnFace = true;
1162           if (! FacesWithSizeMap.Contains(TopoDS::Face(GeomShape))) {
1163             key = FacesWithSizeMap.Add(TopoDS::Face(GeomShape));
1164           }
1165           else {
1166             key = FacesWithSizeMap.FindIndex(TopoDS::Face(GeomShape));
1167           }
1168           FaceId2SizeMap[key] = smIt->second;
1169         }
1170         // Single edge
1171         if (GeomType == TopAbs_EDGE){
1172           HasSizeMapOnEdge = true;
1173           HasSizeMapOnFace = true;
1174           if (! EdgesWithSizeMap.Contains(TopoDS::Edge(GeomShape))) {
1175             key = EdgesWithSizeMap.Add(TopoDS::Edge(GeomShape));
1176           }
1177           else {
1178             key = EdgesWithSizeMap.FindIndex(TopoDS::Edge(GeomShape));
1179           }
1180           EdgeId2SizeMap[key] = smIt->second;
1181         }
1182         // Single vertex
1183         if (GeomType == TopAbs_VERTEX){
1184           HasSizeMapOnVertex = true;
1185           HasSizeMapOnEdge   = true;
1186           HasSizeMapOnFace   = true;
1187           if (! VerticesWithSizeMap.Contains(TopoDS::Vertex(GeomShape))) {
1188             key = VerticesWithSizeMap.Add(TopoDS::Vertex(GeomShape));
1189           }
1190           else {
1191             key = VerticesWithSizeMap.FindIndex(TopoDS::Vertex(GeomShape));
1192           }
1193           VertexId2SizeMap[key] = smIt->second;
1194         }
1195       }
1196     }
1197
1198     //
1199     // Attractors
1200     //
1201     // TODO appeler le constructeur des attracteurs directement ici
1202 //     if ( !_phySizeRel ) {
1203       const BLSURFPlugin_Hypothesis::TSizeMap attractors = BLSURFPlugin_Hypothesis::GetAttractorEntries(hyp);
1204       BLSURFPlugin_Hypothesis::TSizeMap::const_iterator atIt = attractors.begin();
1205       for ( ; atIt != attractors.end(); ++atIt ) {
1206         if ( !atIt->second.empty() ) {
1207           GeomShape = entryToShape(atIt->first);
1208           GeomType  = GeomShape.ShapeType();
1209           // Group Management
1210           if (GeomType == TopAbs_COMPOUND){
1211             for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
1212               if (it.Value().ShapeType() == TopAbs_FACE){
1213                 HasSizeMapOnFace = true;
1214                 createAttractorOnFace(it.Value(), atIt->second, _phySizeRel ? _phySize*diagonal : _phySize);
1215               }
1216             }
1217           }
1218
1219           if (GeomType == TopAbs_FACE){
1220             HasSizeMapOnFace = true;
1221             createAttractorOnFace(GeomShape, atIt->second, _phySizeRel ? _phySize*diagonal : _phySize);
1222           }
1223   /*
1224           if (GeomType == TopAbs_EDGE){
1225             HasSizeMapOnEdge = true;
1226             HasSizeMapOnFace = true;
1227           EdgeId2SizeMap[TopoDS::Edge(GeomShape).HashCode(IntegerLast())] = atIt->second;
1228           }
1229           if (GeomType == TopAbs_VERTEX){
1230             HasSizeMapOnVertex = true;
1231             HasSizeMapOnEdge   = true;
1232             HasSizeMapOnFace   = true;
1233           VertexId2SizeMap[TopoDS::Vertex(GeomShape).HashCode(IntegerLast())] = atIt->second;
1234           }
1235   */
1236         }
1237       }
1238 //     }
1239
1240     // Class Attractors
1241     // temporary commented out for testing
1242     // TODO
1243     //  - Fill in the BLSURFPlugin_Hypothesis::TAttractorMap map in the hypothesis
1244     //  - Uncomment and complete this part to construct the attractors from the attractor shape and the passed parameters on each face of the map
1245     //  - To do this use the public methodss: SetParameters(several double parameters) and SetType(int type)
1246     //  OR, even better:
1247     //  - Construct the attractors with an empty dist. map in the hypothesis
1248     //  - build the map here for each face with an attractor set and only if the attractor shape as changed since the last call to _buildmap()
1249     //  -> define a bool _mapbuilt in the class that is set to false by default and set to true when calling _buildmap()  OK
1250
1251       theNbAttractors = 0;
1252     const BLSURFPlugin_Hypothesis::TAttractorMap class_attractors = BLSURFPlugin_Hypothesis::GetClassAttractorEntries(hyp);
1253     int key=-1;
1254     BLSURFPlugin_Hypothesis::TAttractorMap::const_iterator AtIt = class_attractors.begin();
1255     for ( ; AtIt != class_attractors.end(); ++AtIt ) {
1256       if ( !AtIt->second->Empty() ) {
1257         GeomShape = entryToShape(AtIt->first);
1258         if ( !SMESH_MesherHelper::IsSubShape( GeomShape, theGeomShape ))
1259           continue;
1260         AttShape = AtIt->second->GetAttractorShape();
1261         GeomType  = GeomShape.ShapeType();
1262         // Group Management
1263 //         if (GeomType == TopAbs_COMPOUND){
1264 //           for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
1265 //             if (it.Value().ShapeType() == TopAbs_FACE){
1266 //               HasAttractorOnFace = true;
1267 //               myAttractor = BLSURFPluginAttractor(GeomShape, AttShape);
1268 //             }
1269 //           }
1270 //         }
1271
1272         if (GeomType == TopAbs_FACE
1273           && (AttShape.ShapeType() == TopAbs_VERTEX
1274            || AttShape.ShapeType() == TopAbs_EDGE
1275            || AttShape.ShapeType() == TopAbs_WIRE
1276            || AttShape.ShapeType() == TopAbs_COMPOUND) ){
1277             HasSizeMapOnFace = true;
1278
1279             key = FacesWithSizeMap.Add(TopoDS::Face(GeomShape) );
1280
1281             FaceId2ClassAttractor[key].push_back( AtIt->second );
1282             ++theNbAttractors;
1283         }
1284         else{
1285           MESSAGE("Wrong shape type !!")
1286         }
1287
1288       }
1289     }
1290
1291
1292     //
1293     // Enforced Vertices
1294     //
1295     const BLSURFPlugin_Hypothesis::TFaceEntryEnfVertexListMap entryEnfVertexListMap = BLSURFPlugin_Hypothesis::GetAllEnforcedVerticesByFace(hyp);
1296     BLSURFPlugin_Hypothesis::TFaceEntryEnfVertexListMap::const_iterator enfIt = entryEnfVertexListMap.begin();
1297     for ( ; enfIt != entryEnfVertexListMap.end(); ++enfIt ) {
1298       if ( !enfIt->second.empty() ) {
1299         GeomShape = entryToShape(enfIt->first);
1300         if ( GeomShape.IsNull() )
1301         {
1302           GeomShape = findFaces( enfIt->second );
1303           if ( GeomShape.IsNull() )
1304             continue;
1305         }
1306         // Group Management
1307         if ( GeomShape.ShapeType() == TopAbs_COMPOUND){
1308           for (TopoDS_Iterator it (GeomShape); it.More(); it.Next()){
1309             if (it.Value().ShapeType() == TopAbs_FACE){
1310               HasSizeMapOnFace = true;
1311               createEnforcedVertexOnFace(it.Value(), enfIt->second);
1312             }
1313           }
1314         }
1315         if ( GeomShape.ShapeType() == TopAbs_FACE){
1316           HasSizeMapOnFace = true;
1317           createEnforcedVertexOnFace(GeomShape, enfIt->second);
1318         }
1319       }
1320     }
1321
1322     // Internal vertices
1323     bool useInternalVertexAllFaces = BLSURFPlugin_Hypothesis::GetInternalEnforcedVertexAllFaces(hyp);
1324     if (useInternalVertexAllFaces) {
1325       std::string grpName = BLSURFPlugin_Hypothesis::GetInternalEnforcedVertexAllFacesGroup(hyp);
1326       gp_Pnt aPnt;
1327       TopExp_Explorer exp (theGeomShape, TopAbs_FACE);
1328       for (; exp.More(); exp.Next()){
1329         TopExp_Explorer exp_face (exp.Current(), TopAbs_VERTEX, TopAbs_EDGE);
1330         for (; exp_face.More(); exp_face.Next())
1331         {
1332           // Get coords of vertex
1333           // Check if current coords is already in enfVertexList
1334           // If coords not in enfVertexList, add new enfVertex
1335           aPnt = BRep_Tool::Pnt(TopoDS::Vertex(exp_face.Current()));
1336           BLSURFPlugin_Hypothesis::TEnfVertex* enfVertex = new BLSURFPlugin_Hypothesis::TEnfVertex();
1337           enfVertex->coords.push_back(aPnt.X());
1338           enfVertex->coords.push_back(aPnt.Y());
1339           enfVertex->coords.push_back(aPnt.Z());
1340           enfVertex->name = "";
1341           enfVertex->faceEntries.clear();
1342           enfVertex->geomEntry = "";
1343           enfVertex->grpName = grpName;
1344           enfVertex->vertex = TopoDS::Vertex( exp_face.Current() );
1345           _createEnforcedVertexOnFace( TopoDS::Face(exp.Current()),  aPnt, enfVertex);
1346           HasSizeMapOnFace = true;
1347         }
1348       }
1349     }
1350
1351     cadsurf_set_sizemap_iso_cad_face(css, size_on_surface, &_smp_phy_size);
1352
1353     if (HasSizeMapOnEdge){
1354       cadsurf_set_sizemap_iso_cad_edge(css, size_on_edge, &_smp_phy_size);
1355     }
1356     if (HasSizeMapOnVertex){
1357       cadsurf_set_sizemap_iso_cad_point(css, size_on_vertex, &_smp_phy_size);
1358     }
1359   }
1360
1361   // PERIODICITY
1362
1363    // reset vectors
1364    _preCadFacesIDsPeriodicityVector.clear();
1365    _preCadEdgesIDsPeriodicityVector.clear();
1366
1367   const BLSURFPlugin_Hypothesis::TPreCadPeriodicityVector preCadFacesPeriodicityVector = BLSURFPlugin_Hypothesis::GetPreCadFacesPeriodicityVector(hyp);
1368
1369   for (std::size_t i = 0; i<preCadFacesPeriodicityVector.size(); i++){
1370     createPreCadFacesPeriodicity(theGeomShape, preCadFacesPeriodicityVector[i]);
1371   }
1372
1373   const BLSURFPlugin_Hypothesis::TPreCadPeriodicityVector preCadEdgesPeriodicityVector = BLSURFPlugin_Hypothesis::GetPreCadEdgesPeriodicityVector(hyp);
1374
1375   for (std::size_t i = 0; i<preCadEdgesPeriodicityVector.size(); i++){
1376     createPreCadEdgesPeriodicity(theGeomShape, preCadEdgesPeriodicityVector[i]);
1377   }
1378 }
1379
1380 //================================================================================
1381 /*!
1382  * \brief Throws an exception if a parameter name is wrong
1383  */
1384 //================================================================================
1385
1386 void BLSURFPlugin_BLSURF::set_param(cadsurf_session_t *css,
1387                                     const char *       option_name,
1388                                     const char *       option_value)
1389 {
1390   status_t status = cadsurf_set_param(css, option_name, option_value );
1391
1392   if ( _hypothesis && _hypothesis->GetVerbosity() > _hypothesis->GetDefaultVerbosity() )
1393     cout << option_name << " = " << option_value << endl;
1394
1395   if ( status != MESHGEMS_STATUS_OK )
1396   {
1397     if ( status == MESHGEMS_STATUS_UNKNOWN_PARAMETER ) {
1398       throw SALOME_Exception
1399         ( SMESH_Comment("Invalid name of CADSURF parameter: ") << option_name );
1400     }
1401     else if ( status == MESHGEMS_STATUS_NOLICENSE )
1402       throw SALOME_Exception
1403         ( "No valid license available" );
1404     else
1405       throw SALOME_Exception
1406         ( SMESH_Comment("Either wrong name or unacceptable value of CADSURF parameter '")
1407           << option_name << "': " << option_value);
1408   }
1409 }
1410
1411 namespace
1412 {
1413   // --------------------------------------------------------------------------
1414   /*!
1415    * \brief Class correctly terminating usage of MG-CADSurf library at destruction
1416    */
1417   class BLSURF_Cleaner
1418   {
1419     context_t *       _ctx;
1420     cadsurf_session_t* _css;
1421     cad_t *           _cad;
1422     dcad_t *          _dcad;
1423   public:
1424     BLSURF_Cleaner(context_t *       ctx,
1425                    cadsurf_session_t* css,
1426                    cad_t *           cad,
1427                    dcad_t *          dcad)
1428       : _ctx ( ctx  ),
1429         _css ( css  ),
1430         _cad ( cad  ),
1431         _dcad( dcad )
1432     {
1433     }
1434     ~BLSURF_Cleaner()
1435     {
1436       Clean( /*exceptContext=*/false );
1437     }
1438     void Clean(const bool exceptContext)
1439     {
1440       if ( _css )
1441       {
1442         cadsurf_session_delete(_css); _css = 0;
1443
1444         // #if BLSURF_VERSION_LONG >= "3.1.1"
1445         // //     if(geo_sizemap_e)
1446         // //       distene_sizemap_delete(geo_sizemap_e);
1447         // //     if(geo_sizemap_f)
1448         // //       distene_sizemap_delete(geo_sizemap_f);
1449         //     if(iso_sizemap_p)
1450         //       distene_sizemap_delete(iso_sizemap_p);
1451         //     if(iso_sizemap_e)
1452         //       distene_sizemap_delete(iso_sizemap_e);
1453         //     if(iso_sizemap_f)
1454         //       distene_sizemap_delete(iso_sizemap_f);
1455         //
1456         // //     if(clean_geo_sizemap_e)
1457         // //       distene_sizemap_delete(clean_geo_sizemap_e);
1458         // //     if(clean_geo_sizemap_f)
1459         // //       distene_sizemap_delete(clean_geo_sizemap_f);
1460         //     if(clean_iso_sizemap_p)
1461         //       distene_sizemap_delete(clean_iso_sizemap_p);
1462         //     if(clean_iso_sizemap_e)
1463         //       distene_sizemap_delete(clean_iso_sizemap_e);
1464         //     if(clean_iso_sizemap_f)
1465         //       distene_sizemap_delete(clean_iso_sizemap_f);
1466         // #endif
1467
1468         cad_delete(_cad); _cad = 0;
1469         dcad_delete(_dcad); _dcad = 0;
1470         if ( !exceptContext )
1471         {
1472           context_delete(_ctx); _ctx = 0;
1473         }
1474       }
1475     }
1476   };
1477
1478   // --------------------------------------------------------------------------
1479   // comparator to sort nodes and sub-meshes
1480   struct ShapeTypeCompare
1481   {
1482     // sort nodes by position in the following order:
1483     // SMDS_TOP_FACE=2, SMDS_TOP_EDGE=1, SMDS_TOP_VERTEX=0, SMDS_TOP_3DSPACE=3
1484     bool operator()( const SMDS_MeshNode* n1, const SMDS_MeshNode* n2 ) const
1485     {
1486       // NEW ORDER: nodes earlier added to sub-mesh are considered "less"
1487       return n1->getIdInShape() < n2->getIdInShape();
1488       // SMDS_TypeOfPosition pos1 = n1->GetPosition()->GetTypeOfPosition();
1489       // SMDS_TypeOfPosition pos2 = n2->GetPosition()->GetTypeOfPosition();
1490       // if ( pos1 == pos2 ) return 0;
1491       // if ( pos1 < pos2 || pos1 == SMDS_TOP_3DSPACE ) return 1;
1492       // return -1;
1493     }
1494     // sort sub-meshes in order: EDGE, VERTEX
1495     bool operator()( const SMESHDS_SubMesh* s1, const SMESHDS_SubMesh* s2 ) const
1496     {
1497       int isVertex1 = ( s1 && s1->NbElements() == 0 );
1498       int isVertex2 = ( s2 && s2->NbElements() == 0 );
1499       if ( isVertex1 == isVertex2 )
1500         return s1 < s2;
1501       return isVertex1 < isVertex2;
1502     }
1503   };
1504
1505   //================================================================================
1506   /*!
1507    * \brief Fills groups of nodes to be merged
1508    */
1509   //================================================================================
1510
1511   void getNodeGroupsToMerge( const SMESHDS_SubMesh*                smDS,
1512                              const TopoDS_Shape&                   shape,
1513                              SMESH_MeshEditor::TListOfListOfNodes& nodeGroupsToMerge)
1514   {
1515     SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
1516     switch ( shape.ShapeType() )
1517     {
1518     case TopAbs_VERTEX: {
1519       std::list< const SMDS_MeshNode* > nodes;
1520       while ( nIt->more() )
1521         nodes.push_back( nIt->next() );
1522       if ( nodes.size() > 1 )
1523         nodeGroupsToMerge.push_back( nodes );
1524       break;
1525     }
1526     case TopAbs_EDGE: {
1527       std::multimap< double, const SMDS_MeshNode* > u2node;
1528       const SMDS_EdgePosition* ePos;
1529       while ( nIt->more() )
1530       {
1531         const SMDS_MeshNode* n = nIt->next();
1532         if (( ePos = dynamic_cast< const SMDS_EdgePosition* >( n->GetPosition() )))
1533           u2node.insert( make_pair( ePos->GetUParameter(), n ));
1534       }
1535       if ( u2node.size() < 2 ) return;
1536
1537       //double tol = (( u2node.rbegin()->first - u2node.begin()->first ) / 20.) / u2node.size();
1538       Standard_Real f,l;
1539       BRep_Tool::Range( TopoDS::Edge( shape ), f,l );
1540       double tol = (( l - f ) / 20.) / u2node.size();
1541
1542       std::multimap< double, const SMDS_MeshNode* >::iterator un2, un1;
1543       for ( un2 = u2node.begin(), un1 = un2++; un2 != u2node.end(); un1 = un2++ )
1544       {
1545         if (( un2->first - un1->first ) <= tol )
1546         {
1547           std::list< const SMDS_MeshNode* > nodes;
1548           nodes.push_back( un1->second );
1549           while (( un2->first - un1->first ) <= tol )
1550           {
1551             nodes.push_back( un2->second );
1552             if ( ++un2 == u2node.end()) {
1553               --un2;
1554               break;
1555             }
1556           }
1557           // make nodes created on the boundary of viscous layer replace nodes created
1558           // by MG-CADSurf as their SMDS_Position is more correct
1559           nodes.sort( ShapeTypeCompare() );
1560           nodeGroupsToMerge.push_back( nodes );
1561         }
1562       }
1563       break;
1564     }
1565     default: ;
1566     }
1567     // SMESH_MeshEditor::TListOfListOfNodes::const_iterator nll = nodeGroupsToMerge.begin();
1568     // for ( ; nll != nodeGroupsToMerge.end(); ++nll )
1569     // {
1570     //   cout << "Merge ";
1571     //   const std::list< const SMDS_MeshNode* >& nl = *nll;
1572     //   std::list< const SMDS_MeshNode* >::const_iterator nIt = nl.begin();
1573     //   for ( ; nIt != nl.end(); ++nIt )
1574     //     cout << (*nIt) << " ";
1575     //   cout << endl;
1576     // }
1577     // cout << endl;
1578   }
1579
1580   //================================================================================
1581   /*!
1582    * \brief A temporary mesh used to compute mesh on a proxy FACE
1583    */
1584   //================================================================================
1585
1586   struct TmpMesh: public SMESH_Mesh
1587   {
1588     typedef std::map<const SMDS_MeshNode*, const SMDS_MeshNode*, TIDCompare > TN2NMap;
1589     TN2NMap     _tmp2origNN;
1590     TopoDS_Face _proxyFace;
1591
1592     TmpMesh()
1593     {
1594       _myMeshDS = new SMESHDS_Mesh( _id, true );
1595     }
1596     //--------------------------------------------------------------------------------
1597     /*!
1598      * \brief Creates a FACE bound by viscous layers and mesh each its EDGE with 1 segment
1599      */
1600     //--------------------------------------------------------------------------------
1601
1602     const TopoDS_Face& makeProxyFace( SMESH_ProxyMesh::Ptr& viscousMesh,
1603                                       const TopoDS_Face&    origFace)
1604     {
1605       // get data of nodes on inner boundary of viscous layers
1606       SMESH_Mesh* origMesh = viscousMesh->GetMesh();
1607       TError err;
1608       TSideVector wireVec = StdMeshers_FaceSide::GetFaceWires(origFace, *origMesh,
1609                                                               /*skipMediumNodes = */true,
1610                                                               err, viscousMesh );
1611       if ( err && err->IsKO() )
1612         throw *err.get(); // it should be caught at SMESH_subMesh
1613
1614       // proxy nodes and corresponding tmp VERTEXes
1615       std::vector<const SMDS_MeshNode*> origNodes;
1616       std::vector<TopoDS_Vertex>        tmpVertex;
1617
1618       // create a proxy FACE
1619       TopoDS_Shape origFaceCopy = origFace.EmptyCopied();
1620       BRepBuilderAPI_MakeFace newFace( TopoDS::Face( origFaceCopy ));
1621       for ( size_t iW = 0; iW != wireVec.size(); ++iW )
1622       {
1623         StdMeshers_FaceSidePtr& wireData = wireVec[iW];
1624         const UVPtStructVec& wirePoints = wireData->GetUVPtStruct();
1625         if ( wirePoints.size() < 3 )
1626           continue;
1627
1628         BRepBuilderAPI_MakePolygon wire;
1629         const size_t i0 = tmpVertex.size();
1630         for ( size_t iN = 0; iN < wirePoints.size(); ++iN )
1631         {
1632           wire.Add( SMESH_TNodeXYZ( wirePoints[ iN ].node ));
1633           origNodes.push_back( wirePoints[ iN ].node );
1634           tmpVertex.push_back( wire.LastVertex() );
1635         }
1636         tmpVertex[ i0 ] = wire.FirstVertex(); // wire.LastVertex()==NULL for 1 vertex in wire
1637         wire.Close();
1638         if ( !wire.IsDone() )
1639           throw SALOME_Exception("BLSURFPlugin_BLSURF: BRepBuilderAPI_MakePolygon failed");
1640         newFace.Add( wire );
1641       }
1642       _proxyFace = newFace;
1643
1644       // set a new shape to mesh
1645       TopoDS_Compound auxCompoundToMesh;
1646       BRep_Builder shapeBuilder;
1647       shapeBuilder.MakeCompound( auxCompoundToMesh );
1648       shapeBuilder.Add( auxCompoundToMesh, _proxyFace );
1649       shapeBuilder.Add( auxCompoundToMesh, origMesh->GetShapeToMesh() );
1650
1651       ShapeToMesh( auxCompoundToMesh );
1652
1653       //TopExp_Explorer fExp( auxCompoundToMesh, TopAbs_FACE );
1654       //_proxyFace = TopoDS::Face( fExp.Current() );
1655
1656
1657       // Make input mesh for MG-CADSurf: segments on EDGE's of newFace
1658
1659       // make nodes and fill in _tmp2origNN
1660       //
1661       SMESHDS_Mesh* tmpMeshDS = GetMeshDS();
1662       for ( size_t i = 0; i < origNodes.size(); ++i )
1663       {
1664         GetSubMesh( tmpVertex[i] )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1665         if ( const SMDS_MeshNode* tmpN = SMESH_Algo::VertexNode( tmpVertex[i], tmpMeshDS ))
1666           _tmp2origNN.insert( _tmp2origNN.end(), make_pair( tmpN, origNodes[i] ));
1667         else
1668           throw SALOME_Exception("BLSURFPlugin_BLSURF: a proxy vertex not meshed");
1669       }
1670
1671       // make segments
1672       TopoDS_Vertex v1, v2;
1673       for ( TopExp_Explorer edge( _proxyFace, TopAbs_EDGE ); edge.More(); edge.Next() )
1674       {
1675         const TopoDS_Edge& E = TopoDS::Edge( edge.Current() );
1676         TopExp::Vertices( E, v1, v2 );
1677         const SMDS_MeshNode* n1 = SMESH_Algo::VertexNode( v1, tmpMeshDS );
1678         const SMDS_MeshNode* n2 = SMESH_Algo::VertexNode( v2, tmpMeshDS );
1679
1680         if ( SMDS_MeshElement* seg = tmpMeshDS->AddEdge( n1, n2 ))
1681           tmpMeshDS->SetMeshElementOnShape( seg, E );
1682       }
1683
1684       return _proxyFace;
1685     }
1686
1687     //--------------------------------------------------------------------------------
1688     /*!
1689      * \brief Fill in the origMesh with faces computed by MG-CADSurf in this tmp mesh
1690      */
1691     //--------------------------------------------------------------------------------
1692
1693     void FillInOrigMesh( SMESH_Mesh&        origMesh,
1694                          const TopoDS_Face& origFace )
1695     {
1696       SMESH_MesherHelper helper( origMesh );
1697       helper.SetSubShape( origFace );
1698       helper.SetElementsOnShape( true );
1699
1700       SMESH_MesherHelper tmpHelper( *this );
1701       tmpHelper.SetSubShape( _proxyFace );
1702
1703       // iterate over tmp faces and copy them in origMesh
1704       const SMDS_MeshNode* nodes[27];
1705       const SMDS_MeshNode* nullNode = 0;
1706       double xyz[3];
1707       SMDS_FaceIteratorPtr fIt = GetMeshDS()->facesIterator(/*idInceasingOrder=*/true);
1708       while ( fIt->more() )
1709       {
1710         const SMDS_MeshElement* f = fIt->next();
1711         SMDS_ElemIteratorPtr nIt = f->nodesIterator();
1712         int nbN = 0;
1713         for ( ; nIt->more(); ++nbN )
1714         {
1715           const SMDS_MeshNode* n = static_cast<const SMDS_MeshNode*>( nIt->next() );
1716           TN2NMap::iterator n2nIt =
1717             _tmp2origNN.insert( _tmp2origNN.end(), make_pair( n, nullNode ));
1718           if ( !n2nIt->second ) {
1719             n->GetXYZ( xyz );
1720             gp_XY uv = tmpHelper.GetNodeUV( _proxyFace, n );
1721             n2nIt->second = helper.AddNode( xyz[0], xyz[1], xyz[2], uv.X(), uv.Y() );
1722           }
1723           nodes[ nbN ] = n2nIt->second;
1724         }
1725         switch( nbN ) {
1726         case 3: helper.AddFace( nodes[0], nodes[1], nodes[2] ); break;
1727           // case 6: helper.AddFace( nodes[0], nodes[1], nodes[2],
1728           //                         nodes[3], nodes[4], nodes[5]); break;
1729         case 4: helper.AddFace( nodes[0], nodes[1], nodes[2], nodes[3] ); break;
1730         // case 9: helper.AddFace( nodes[0], nodes[1], nodes[2], nodes[3],
1731         //                         nodes[4], nodes[5], nodes[6], nodes[7], nodes[8]); break;
1732         // case 8: helper.AddFace( nodes[0], nodes[1], nodes[2], nodes[3],
1733         //                         nodes[4], nodes[5], nodes[6], nodes[7]); break;
1734         }
1735       }
1736     }
1737   };
1738
1739   /*!
1740    * \brief A structure holding an error description and a verbisity level
1741    */
1742   struct message_cb_user_data
1743   {
1744     std::string * _error;
1745     int           _verbosity;
1746     double *      _progress;
1747   };
1748
1749 } // namespace
1750
1751 status_t curv_fun(real t, real *uv, real *dt, real *dtt, void *user_data);
1752 status_t surf_fun(real *uv, real *xyz, real*du, real *dv,
1753                   real *duu, real *duv, real *dvv, void *user_data);
1754 status_t message_cb(message_t *msg, void *user_data);
1755 status_t interrupt_cb(integer *interrupt_status, void *user_data);
1756
1757 //=============================================================================
1758 /*!
1759  *
1760  */
1761 //=============================================================================
1762
1763 bool BLSURFPlugin_BLSURF::Compute(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape) {
1764
1765   // Fix problem with locales
1766   Kernel_Utils::Localizer aLocalizer;
1767
1768   this->SMESH_Algo::_progress = 1e-3; // prevent progress advancment while computing attractors
1769
1770   bool viscousLayersMade =
1771     ( aShape.ShapeType() == TopAbs_FACE &&
1772       StdMeshers_ViscousLayers2D::HasProxyMesh( TopoDS::Face( aShape ), aMesh ));
1773
1774   if ( !viscousLayersMade )
1775     if ( !compute( aMesh, aShape, /*allowSubMeshClearing=*/true ))
1776       return false;
1777
1778   if ( _haveViscousLayers || viscousLayersMade )
1779   {
1780     // Compute viscous layers
1781
1782     TopTools_MapOfShape map;
1783     for (TopExp_Explorer face_iter(aShape,TopAbs_FACE);face_iter.More();face_iter.Next())
1784     {
1785       const TopoDS_Face& F = TopoDS::Face(face_iter.Current());
1786       if ( !map.Add( F )) continue;
1787       SMESH_ProxyMesh::Ptr viscousMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
1788       if ( !viscousMesh )
1789         return false; // error in StdMeshers_ViscousLayers2D::Compute()
1790
1791       // Compute MG-CADSurf mesh on viscous layers
1792
1793       if ( viscousMesh->NbProxySubMeshes() > 0 )
1794       {
1795         TmpMesh tmpMesh;
1796         const TopoDS_Face& proxyFace = tmpMesh.makeProxyFace( viscousMesh, F );
1797         if ( !compute( tmpMesh, proxyFace, /*allowSubMeshClearing=*/false ))
1798           return false;
1799         tmpMesh.FillInOrigMesh( aMesh, F );
1800       }
1801     }
1802
1803     // Re-compute MG-CADSurf mesh on the rest faces if the mesh was cleared
1804
1805     for (TopExp_Explorer face_iter(aShape,TopAbs_FACE);face_iter.More();face_iter.Next())
1806     {
1807       const TopoDS_Face& F = TopoDS::Face(face_iter.Current());
1808       SMESH_subMesh* fSM = aMesh.GetSubMesh( F );
1809       if ( fSM->IsMeshComputed() ) continue;
1810
1811       if ( !compute( aMesh, aShape, /*allowSubMeshClearing=*/true ))
1812         return false;
1813       break;
1814     }
1815   }
1816   return true;
1817 }
1818
1819 //=============================================================================
1820 /*!
1821  *
1822  */
1823 //=============================================================================
1824
1825 bool BLSURFPlugin_BLSURF::compute(SMESH_Mesh&         aMesh,
1826                                   const TopoDS_Shape& aShape,
1827                                   bool                allowSubMeshClearing)
1828 {
1829   /* create a distene context (generic object) */
1830   status_t status = STATUS_ERROR;
1831
1832   SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
1833   SMESH_MesherHelper helper( aMesh ), helperWithShape( aMesh );
1834   myHelper = & helperWithShape;
1835   // do not call helper.IsQuadraticSubMesh() because sub-meshes
1836   // may be cleaned and helper.myTLinkNodeMap gets invalid in such a case
1837   bool haveQuadraticSubMesh = helperWithShape.IsQuadraticSubMesh( aShape );
1838   bool quadraticSubMeshAndViscousLayer = false;
1839   bool needMerge = false;
1840   typedef set< SMESHDS_SubMesh*, ShapeTypeCompare > TSubMeshSet;
1841   TSubMeshSet edgeSubmeshes;
1842   TSubMeshSet& mergeSubmeshes = edgeSubmeshes;
1843
1844   TopTools_IndexedMapOfShape pmap, emap, fmap;
1845
1846   // Issue 0019864. On DebianSarge, FE signals do not obey to OSD::SetSignal(false)
1847 #ifndef WIN32
1848   feclearexcept( FE_ALL_EXCEPT );
1849   int oldFEFlags = fedisableexcept( FE_ALL_EXCEPT );
1850 #endif
1851
1852   context_t *ctx =  context_new();
1853
1854   /* Set the message callback in the working context */
1855   message_cb_user_data mcud;
1856   mcud._error     = & this->SMESH_Algo::_comment;
1857   mcud._progress  = & this->SMESH_Algo::_progress;
1858   mcud._verbosity =
1859     _hypothesis ? _hypothesis->GetVerbosity() : BLSURFPlugin_Hypothesis::GetDefaultVerbosity();
1860   context_set_message_callback(ctx, message_cb, &mcud);
1861
1862   /* set the interruption callback */
1863   _compute_canceled = false;
1864   context_set_interrupt_callback(ctx, interrupt_cb, this);
1865
1866   /* create the CAD object we will work on. It is associated to the context ctx. */
1867   cad_t *c     = cad_new(ctx);
1868   dcad_t *dcad = dcad_new(c);
1869
1870   FacesWithSizeMap.Clear();
1871   FaceId2SizeMap.clear();
1872   FaceId2ClassAttractor.clear();
1873   FaceIndex2ClassAttractor.clear();
1874   EdgesWithSizeMap.Clear();
1875   EdgeId2SizeMap.clear();
1876   VerticesWithSizeMap.Clear();
1877   VertexId2SizeMap.clear();
1878
1879   /* Now fill the CAD object with data from your CAD
1880    * environement. This is the most complex part of a successfull
1881    * integration.
1882    */
1883
1884   // PreCAD
1885
1886   cadsurf_session_t *css = cadsurf_session_new(ctx);
1887
1888   // an object that correctly deletes all cadsurf objects at destruction
1889   BLSURF_Cleaner cleaner( ctx,css,c,dcad );
1890
1891   SetParameters(_hypothesis, css, aShape);
1892
1893   haveQuadraticSubMesh = haveQuadraticSubMesh || (_hypothesis != NULL && _hypothesis->GetQuadraticMesh());
1894   helper.SetIsQuadratic( haveQuadraticSubMesh );
1895
1896   // To remove as soon as quadratic mesh is allowed - BEGIN
1897   // GDD: Viscous layer is not allowed with quadratic mesh
1898   if (_haveViscousLayers && haveQuadraticSubMesh ) {
1899     quadraticSubMeshAndViscousLayer = true;
1900     _haveViscousLayers = !haveQuadraticSubMesh;
1901     _comment += "Warning: Viscous layer is not possible with a quadratic mesh, it is ignored.";
1902     error(COMPERR_WARNING, _comment);
1903   }
1904   // To remove as soon as quadratic mesh is allowed - END
1905
1906   // needed to prevent the opencascade memory managmement from freeing things
1907   vector<Handle(Geom2d_Curve)> curves;
1908   vector<Handle(Geom_Surface)> surfaces;
1909
1910   emap.Clear();
1911   pmap.Clear();
1912   FaceId2PythonSmp.clear();
1913   EdgeId2PythonSmp.clear();
1914   VertexId2PythonSmp.clear();
1915
1916   /****************************************************************************************
1917                                           FACES
1918   *****************************************************************************************/
1919   int iface = 0;
1920   string bad_end = "return";
1921   int faceKey = -1;
1922   TopTools_IndexedMapOfShape _map;
1923   TopExp::MapShapes(aShape,TopAbs_VERTEX,_map);
1924   int ienf = _map.Extent();
1925
1926   assert(Py_IsInitialized());
1927   PyGILState_STATE gstate;
1928
1929   string theSizeMapStr;
1930
1931   for (TopExp_Explorer face_iter(aShape,TopAbs_FACE);face_iter.More();face_iter.Next())
1932   {
1933     TopoDS_Face f = TopoDS::Face(face_iter.Current());
1934
1935     SMESH_subMesh* fSM = aMesh.GetSubMesh( f );
1936     if ( !fSM->IsEmpty() ) continue; // skip already meshed FACE with viscous layers
1937
1938     // make INTERNAL face oriented FORWARD (issue 0020993)
1939     if (f.Orientation() != TopAbs_FORWARD && f.Orientation() != TopAbs_REVERSED )
1940       f.Orientation(TopAbs_FORWARD);
1941
1942     iface = fmap.Add(f);
1943 //    std::string aFileName = "fmap_face_";
1944 //    aFileName.append(val_to_string(iface));
1945 //    aFileName.append(".brep");
1946 //    BRepTools::Write(f,aFileName.c_str());
1947
1948     surfaces.push_back(BRep_Tool::Surface(f));
1949
1950     /* create an object representing the face for cadsurf */
1951     /* where face_id is an integer identifying the face.
1952      * surf_function is the function that defines the surface
1953      * (For this face, it will be called by cadsurf with your_face_object_ptr
1954      * as last parameter.
1955      */
1956 #if OCC_VERSION_MAJOR < 7
1957     cad_face_t *fce = cad_face_new(c, iface, surf_fun, surfaces.back());
1958 #else
1959     cad_face_t *fce = cad_face_new(c, iface, surf_fun, surfaces.back().get());
1960 #endif
1961
1962     /* by default a face has no tag (color).
1963        The following call sets it to the same value as the Geom module ID : */
1964     const int faceTag = meshDS->ShapeToIndex(f);
1965     cad_face_set_tag(fce, faceTag);
1966
1967     /* Set face orientation (optional if you want a well oriented output mesh)*/
1968     if(f.Orientation() != TopAbs_FORWARD)
1969       cad_face_set_orientation(fce, CAD_ORIENTATION_REVERSED);
1970     else
1971       cad_face_set_orientation(fce, CAD_ORIENTATION_FORWARD);
1972
1973     if (HasSizeMapOnFace /*&& !use_precad*/) //22903: use_precad seems not to interfere
1974     {
1975       // -----------------
1976       // Classic size map
1977       // -----------------
1978       faceKey = FacesWithSizeMap.FindIndex(f);
1979
1980
1981       if (FaceId2SizeMap.find(faceKey)!=FaceId2SizeMap.end())
1982       {
1983         theSizeMapStr = FaceId2SizeMap[faceKey];
1984         // check if function ends with "return"
1985         if (theSizeMapStr.find(bad_end) == (theSizeMapStr.size()-bad_end.size()-1))
1986           continue;
1987         // Expr To Python function, verification is performed at validation in GUI
1988         gstate = PyGILState_Ensure();
1989         PyObject * obj = NULL;
1990         obj= PyRun_String(theSizeMapStr.c_str(), Py_file_input, main_dict, NULL);
1991         Py_DECREF(obj);
1992         PyObject * func = NULL;
1993         func = PyObject_GetAttrString(main_mod, "f");
1994         FaceId2PythonSmp[iface]=func;
1995         FaceId2SizeMap.erase(faceKey);
1996         PyGILState_Release(gstate);
1997       }
1998
1999       // Specific size map = Attractor
2000       std::map<int,std::vector<double> >::iterator attractor_iter = FaceId2AttractorCoords.begin();
2001
2002       for (; attractor_iter != FaceId2AttractorCoords.end(); ++attractor_iter) {
2003         if (attractor_iter->first == faceKey)
2004         {
2005           double xyzCoords[3]  = {attractor_iter->second[2],
2006                                   attractor_iter->second[3],
2007                                   attractor_iter->second[4]};
2008
2009           gp_Pnt P(xyzCoords[0],xyzCoords[1],xyzCoords[2]);
2010           BRepClass_FaceClassifier scl(f,P,1e-7);
2011           scl.Perform(f, P, 1e-7);
2012           TopAbs_State result = scl.State();
2013           if ( result == TopAbs_OUT )
2014             MESSAGE("Point is out of face: node is not created");
2015           if ( result == TopAbs_UNKNOWN )
2016             MESSAGE("Point position on face is unknown: node is not created");
2017           if ( result == TopAbs_ON )
2018             MESSAGE("Point is on border of face: node is not created");
2019           if ( result == TopAbs_IN )
2020           {
2021             // Point is inside face and not on border
2022             double uvCoords[2] = {attractor_iter->second[0],attractor_iter->second[1]};
2023             ienf++;
2024             cad_point_t* point_p = cad_point_new(fce, ienf, uvCoords);
2025             cad_point_set_tag(point_p, ienf);
2026           }
2027           FaceId2AttractorCoords.erase(faceKey);
2028         }
2029       }
2030
2031       // -----------------
2032       // Class Attractors
2033       // -----------------
2034       TId2ClsAttractorVec::iterator clAttractor_iter = FaceId2ClassAttractor.find(faceKey);
2035       if (clAttractor_iter != FaceId2ClassAttractor.end()){
2036         std::vector< BLSURFPlugin_Attractor* > & attVec = clAttractor_iter->second;
2037         for ( size_t i = 0; i < attVec.size(); ++i )
2038           if ( !attVec[i]->IsMapBuilt() ) {
2039             std::cout<<"Compute " << theNbAttractors-- << "-th attractor" <<std::endl;
2040             attVec[i]->BuildMap();
2041           }
2042         FaceIndex2ClassAttractor[iface].swap( attVec );
2043         FaceId2ClassAttractor.erase(clAttractor_iter);
2044       }
2045     } // if (HasSizeMapOnFace && !use_precad)
2046
2047       // ------------------
2048       // Enforced Vertices
2049       // ------------------
2050     faceKey = FacesWithEnforcedVertices.FindIndex(f);
2051     std::map<int,BLSURFPlugin_Hypothesis::TEnfVertexCoordsList >::const_iterator evmIt = FaceId2EnforcedVertexCoords.find(faceKey);
2052     if (evmIt != FaceId2EnforcedVertexCoords.end()) {
2053       BLSURFPlugin_Hypothesis::TEnfVertexCoordsList evl;
2054       evl = evmIt->second;
2055       BLSURFPlugin_Hypothesis::TEnfVertexCoordsList::const_iterator evlIt = evl.begin();
2056       for (; evlIt != evl.end(); ++evlIt) {
2057         BLSURFPlugin_Hypothesis::TEnfVertexCoords xyzCoords;
2058         xyzCoords.push_back(evlIt->at(2));
2059         xyzCoords.push_back(evlIt->at(3));
2060         xyzCoords.push_back(evlIt->at(4));
2061         gp_Pnt P(xyzCoords[0],xyzCoords[1],xyzCoords[2]);
2062         BRepClass_FaceClassifier scl(f,P,1e-7);
2063         // OCC 6.3sp6 : scl.Perform() is bugged. The function was rewritten
2064         // BRepClass_FaceClassifierPerform(&scl,f,P,1e-7);
2065         // OCC 6.5.2: scl.Perform() is not bugged anymore
2066         scl.Perform(f, P, 1e-7);
2067         TopAbs_State result = scl.State();
2068         if ( result == TopAbs_OUT ) {
2069           if (EnfVertexCoords2ProjVertex.find(xyzCoords) != EnfVertexCoords2ProjVertex.end()) {
2070             EnfVertexCoords2ProjVertex.erase(xyzCoords);
2071             // isssue 22783. Do not erase as this point can be IN other face of a group
2072             //EnfVertexCoords2EnfVertexList.erase(xyzCoords);
2073           }
2074         }
2075         if ( result == TopAbs_UNKNOWN ) {
2076           if (EnfVertexCoords2ProjVertex.find(xyzCoords) != EnfVertexCoords2ProjVertex.end()) {
2077             EnfVertexCoords2ProjVertex.erase(xyzCoords);
2078             //EnfVertexCoords2EnfVertexList.erase(xyzCoords);
2079           }
2080         }
2081         if ( result == TopAbs_ON ) {
2082           if (EnfVertexCoords2ProjVertex.find(xyzCoords) != EnfVertexCoords2ProjVertex.end()) {
2083             EnfVertexCoords2ProjVertex.erase(xyzCoords);
2084             //EnfVertexCoords2EnfVertexList.erase(xyzCoords);
2085           }
2086         }
2087         if ( result == TopAbs_IN )
2088         {
2089           // Point is inside face and not on border
2090           double uvCoords[2]   = {evlIt->at(0),evlIt->at(1)};
2091           ienf++;
2092           cad_point_t* point_p = cad_point_new(fce, ienf, uvCoords);
2093           int tag = 0;
2094           std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexList >::const_iterator enfCoordsIt = EnfVertexCoords2EnfVertexList.find(xyzCoords);
2095           if (enfCoordsIt != EnfVertexCoords2EnfVertexList.end() &&
2096               !enfCoordsIt->second.empty() )
2097           {
2098             // to merge nodes of an INTERNAL vertex belonging to several faces
2099             TopoDS_Vertex     v = (*enfCoordsIt->second.begin())->vertex;
2100             if ( v.IsNull() ) v = (*enfCoordsIt->second.rbegin())->vertex;
2101             if ( !v.IsNull() ) {
2102               tag = pmap.Add( v );
2103               SMESH_subMesh* vSM = aMesh.GetSubMesh( v );
2104               vSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
2105               mergeSubmeshes.insert( vSM->GetSubMeshDS() );
2106               // //if ( tag != pmap.Extent() )
2107               // needMerge = true;
2108             }
2109           }
2110           if ( tag == 0 ) tag = ienf;
2111           cad_point_set_tag(point_p, tag);
2112         }
2113       }
2114       FaceId2EnforcedVertexCoords.erase(faceKey);
2115
2116     }
2117
2118     /****************************************************************************************
2119                                            EDGES
2120                         now create the edges associated to this face
2121     *****************************************************************************************/
2122     int edgeKey = -1;
2123     for (TopExp_Explorer edge_iter(f,TopAbs_EDGE);edge_iter.More();edge_iter.Next())
2124     {
2125       TopoDS_Edge e = TopoDS::Edge(edge_iter.Current());
2126       int ic = emap.FindIndex(e);
2127       if (ic <= 0)
2128         ic = emap.Add(e);
2129
2130 //      std::string aFileName = "fmap_edge_";
2131 //      aFileName.append(val_to_string(ic));
2132 //      aFileName.append(".brep");
2133 //      BRepTools::Write(e,aFileName.c_str());
2134
2135       double tmin,tmax;
2136       curves.push_back(BRep_Tool::CurveOnSurface(e, f, tmin, tmax));
2137
2138       if (HasSizeMapOnEdge){
2139         edgeKey = EdgesWithSizeMap.FindIndex(e);
2140         if (EdgeId2SizeMap.find(edgeKey)!=EdgeId2SizeMap.end())
2141         {
2142           theSizeMapStr = EdgeId2SizeMap[edgeKey];
2143           if (theSizeMapStr.find(bad_end) == (theSizeMapStr.size()-bad_end.size()-1))
2144             continue;
2145           // Expr To Python function, verification is performed at validation in GUI
2146           gstate = PyGILState_Ensure();
2147           PyObject * obj = NULL;
2148           obj= PyRun_String(theSizeMapStr.c_str(), Py_file_input, main_dict, NULL);
2149           Py_DECREF(obj);
2150           PyObject * func = NULL;
2151           func = PyObject_GetAttrString(main_mod, "f");
2152           EdgeId2PythonSmp[ic]=func;
2153           EdgeId2SizeMap.erase(edgeKey);
2154           PyGILState_Release(gstate);
2155         }
2156       }
2157       /* data of nodes existing on the edge */
2158       StdMeshers_FaceSidePtr nodeData;
2159       SMESH_subMesh* sm = aMesh.GetSubMesh( e );
2160       if ( !sm->IsEmpty() )
2161       {
2162         // SMESH_subMeshIteratorPtr subsmIt = sm->getDependsOnIterator( /*includeSelf=*/true,
2163         //                                                              /*complexFirst=*/false);
2164         // while ( subsmIt->more() )
2165         //   edgeSubmeshes.insert( subsmIt->next()->GetSubMeshDS() );
2166         edgeSubmeshes.insert( sm->GetSubMeshDS() );
2167
2168         nodeData.reset( new StdMeshers_FaceSide( f, e, &aMesh, /*isForwrd = */true,
2169                                                  /*ignoreMedium=*/haveQuadraticSubMesh));
2170         if ( nodeData->MissVertexNode() )
2171           return error(COMPERR_BAD_INPUT_MESH,"No node on vertex");
2172
2173         const std::vector<UVPtStruct>& nodeDataVec = nodeData->GetUVPtStruct();
2174         if ( !nodeDataVec.empty() )
2175         {
2176           if ( Abs( nodeDataVec[0].param - tmin ) > Abs( nodeDataVec.back().param - tmin ))
2177           {
2178             nodeData->Reverse();
2179             nodeData->GetUVPtStruct(); // nodeData recomputes nodeDataVec
2180           }
2181           // tmin and tmax can change in case of viscous layer on an adjacent edge
2182           tmin = nodeDataVec.front().param;
2183           tmax = nodeDataVec.back().param;
2184         }
2185         else
2186         {
2187           cout << "---------------- Invalid nodeData" << endl;
2188           nodeData.reset();
2189         }
2190       }
2191
2192       /* attach the edge to the current cadsurf face */
2193 #if OCC_VERSION_MAJOR < 7
2194       cad_edge_t *edg = cad_edge_new(fce, ic, tmin, tmax, curv_fun, curves.back());
2195 #else
2196       cad_edge_t *edg = cad_edge_new(fce, ic, tmin, tmax, curv_fun, curves.back().get());
2197 #endif
2198
2199       /* by default an edge has no tag (color).
2200          The following call sets it to the same value as the edge_id : */
2201       cad_edge_set_tag(edg, ic);
2202
2203       /* by default, an edge does not necessalry appear in the resulting mesh,
2204          unless the following property is set :
2205       */
2206       cad_edge_set_property(edg, EDGE_PROPERTY_SOFT_REQUIRED);
2207
2208       /* by default an edge is a boundary edge */
2209       if (e.Orientation() == TopAbs_INTERNAL)
2210         cad_edge_set_property(edg, EDGE_PROPERTY_INTERNAL);
2211
2212       // pass existing nodes of sub-meshes to MG-CADSurf
2213       if ( nodeData )
2214       {
2215         const std::vector<UVPtStruct>& nodeDataVec = nodeData->GetUVPtStruct();
2216         const int                      nbNodes     = nodeDataVec.size();
2217
2218         dcad_edge_discretization_t *dedge;
2219         dcad_get_edge_discretization(dcad, edg, &dedge);
2220         dcad_edge_discretization_set_vertex_count( dedge, nbNodes );
2221
2222         // cout << endl << " EDGE " << ic << endl;
2223         // cout << "tmin = "<<tmin << ", tmax = "<< tmax << endl;
2224         for ( int iN = 0; iN < nbNodes; ++iN )
2225         {
2226           const UVPtStruct& nData = nodeDataVec[ iN ];
2227           double t                = nData.param;
2228           real uv[2]              = { nData.u, nData.v };
2229           SMESH_TNodeXYZ nXYZ( nData.node );
2230           // cout << "\tt = " << t
2231           //      << "\t uv = ( " << uv[0] << ","<< uv[1] << " ) "
2232           //      << "\t u = " << nData.param
2233           //      << "\t ID = " << nData.node->GetID() << endl;
2234           dcad_edge_discretization_set_vertex_coordinates( dedge, iN+1, t, uv, nXYZ._xyz );
2235         }
2236         dcad_edge_discretization_set_property(dedge, DISTENE_DCAD_PROPERTY_REQUIRED);
2237       }
2238
2239       /****************************************************************************************
2240                                       VERTICES
2241       *****************************************************************************************/
2242
2243       int npts = 0;
2244       int ip1, ip2, *ip;
2245       gp_Pnt2d e0 = curves.back()->Value(tmin);
2246       gp_Pnt ee0 = surfaces.back()->Value(e0.X(), e0.Y());
2247       Standard_Real d1=0,d2=0;
2248
2249       int vertexKey = -1;
2250       for (TopExp_Explorer ex_edge(e ,TopAbs_VERTEX); ex_edge.More(); ex_edge.Next()) {
2251         TopoDS_Vertex v = TopoDS::Vertex(ex_edge.Current());
2252         ++npts;
2253         if (npts == 1){
2254           ip = &ip1;
2255           d1 = ee0.SquareDistance(BRep_Tool::Pnt(v));
2256         } else {
2257           ip = &ip2;
2258           d2 = ee0.SquareDistance(BRep_Tool::Pnt(v));
2259         }
2260         *ip = pmap.FindIndex(v);
2261         if(*ip <= 0) {
2262           *ip = pmap.Add(v);
2263           // SMESH_subMesh* sm = aMesh.GetSubMesh(v);
2264           // if ( sm->IsMeshComputed() )
2265           //   edgeSubmeshes.insert( sm->GetSubMeshDS() );
2266         }
2267
2268 //        std::string aFileName = "fmap_vertex_";
2269 //        aFileName.append(val_to_string(*ip));
2270 //        aFileName.append(".brep");
2271 //        BRepTools::Write(v,aFileName.c_str());
2272
2273         if (HasSizeMapOnVertex){
2274           vertexKey = VerticesWithSizeMap.FindIndex(v);
2275           if (VertexId2SizeMap.find(vertexKey)!=VertexId2SizeMap.end()){
2276             theSizeMapStr = VertexId2SizeMap[vertexKey];
2277             if (theSizeMapStr.find(bad_end) == (theSizeMapStr.size()-bad_end.size()-1))
2278               continue;
2279             // Expr To Python function, verification is performed at validation in GUI
2280             gstate = PyGILState_Ensure();
2281             PyObject * obj = NULL;
2282             obj= PyRun_String(theSizeMapStr.c_str(), Py_file_input, main_dict, NULL);
2283             Py_DECREF(obj);
2284             PyObject * func = NULL;
2285             func = PyObject_GetAttrString(main_mod, "f");
2286             VertexId2PythonSmp[*ip]=func;
2287             VertexId2SizeMap.erase(vertexKey);   // do not erase if using a vector
2288             PyGILState_Release(gstate);
2289           }
2290         }
2291       }
2292       if (npts != 2) {
2293         // should not happen
2294         MESSAGE("An edge does not have 2 extremities.");
2295       } else {
2296         if (d1 < d2) {
2297           // This defines the curves extremity connectivity
2298           cad_edge_set_extremities(edg, ip1, ip2);
2299           /* set the tag (color) to the same value as the extremity id : */
2300           cad_edge_set_extremities_tag(edg, ip1, ip2);
2301         }
2302         else {
2303           cad_edge_set_extremities(edg, ip2, ip1);
2304           cad_edge_set_extremities_tag(edg, ip2, ip1);
2305         }
2306       }
2307     } // for edge
2308   } //for face
2309
2310   // Clear mesh from already meshed edges if possible else
2311   // remember that merge is needed
2312   TSubMeshSet::iterator smIt = edgeSubmeshes.begin();
2313   for ( ; smIt != edgeSubmeshes.end(); ++smIt ) // loop on already meshed EDGEs
2314   {
2315     SMESHDS_SubMesh* smDS = *smIt;
2316     if ( !smDS ) continue;
2317     SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
2318     if ( nIt->more() )
2319     {
2320       const SMDS_MeshNode* n = nIt->next();
2321       if ( n->NbInverseElements( SMDSAbs_Face ) > 0 )
2322       {
2323         needMerge = true; // to correctly sew with viscous mesh
2324         // add existing medium nodes to helper
2325         if ( aMesh.NbEdges( ORDER_QUADRATIC ) > 0 )
2326         {
2327           SMDS_ElemIteratorPtr edgeIt = smDS->GetElements();
2328           while ( edgeIt->more() )
2329             helper.AddTLinks( static_cast<const SMDS_MeshEdge*>(edgeIt->next()));
2330         }
2331         continue;
2332       }
2333     }
2334     if ( allowSubMeshClearing )
2335     {
2336       SMDS_ElemIteratorPtr eIt = smDS->GetElements();
2337       while ( eIt->more() ) meshDS->RemoveFreeElement( eIt->next(), 0 );
2338       SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
2339       while ( nIt->more() ) meshDS->RemoveFreeNode( nIt->next(), 0 );
2340       smDS->Clear();
2341     }
2342     else
2343     {
2344       needMerge = true;
2345     }
2346   }
2347
2348   ///////////////////////
2349   // PERIODICITY       //
2350   ///////////////////////
2351
2352   if (! _preCadFacesIDsPeriodicityVector.empty())
2353   {
2354     for (std::size_t i=0; i < _preCadFacesIDsPeriodicityVector.size(); i++){
2355       std::vector<int> theFace1_ids = _preCadFacesIDsPeriodicityVector[i].shape1IDs;
2356       std::vector<int> theFace2_ids = _preCadFacesIDsPeriodicityVector[i].shape2IDs;
2357       int* theFace1_ids_c = &theFace1_ids[0];
2358       int* theFace2_ids_c = &theFace2_ids[0];
2359       std::ostringstream o;
2360       o << "_preCadFacesIDsPeriodicityVector[" << i << "] = [";
2361       for (std::size_t j=0; j < theFace1_ids.size(); j++)
2362         o << theFace1_ids[j] << ", ";
2363       o << "], [";
2364       for (std::size_t j=0; j < theFace2_ids.size(); j++)
2365         o << theFace2_ids[j] << ", ";
2366       o << "]";
2367       if (_preCadFacesIDsPeriodicityVector[i].theSourceVerticesCoords.empty())
2368       {
2369         // If no source points, call peridoicity without transformation function
2370         meshgems_cad_periodicity_transformation_t periodicity_transformation = NULL;
2371         status = cad_add_face_multiple_periodicity_with_transformation_function(c, theFace1_ids_c, theFace1_ids.size(),
2372                                                                                 theFace2_ids_c, theFace2_ids.size(), periodicity_transformation, NULL);
2373         if(status != STATUS_OK)
2374           cout << "cad_add_face_multiple_periodicity_with_transformation_function failed with error code " << status << "\n";
2375       }
2376       else
2377       {
2378         // get the transformation vertices
2379         double* theSourceVerticesCoords_c = &_preCadFacesIDsPeriodicityVector[i].theSourceVerticesCoords[0];
2380         double* theTargetVerticesCoords_c = &_preCadFacesIDsPeriodicityVector[i].theTargetVerticesCoords[0];
2381         int nbSourceVertices = _preCadFacesIDsPeriodicityVector[i].theSourceVerticesCoords.size()/3;
2382         int nbTargetVertices = _preCadFacesIDsPeriodicityVector[i].theTargetVerticesCoords.size()/3;
2383
2384         status = cad_add_face_multiple_periodicity_with_transformation_function_by_points(c, theFace1_ids_c, theFace1_ids.size(),
2385                                                                                           theFace2_ids_c, theFace2_ids.size(), theSourceVerticesCoords_c, nbSourceVertices, theTargetVerticesCoords_c, nbTargetVertices);
2386         if(status != STATUS_OK)
2387           cout << "cad_add_face_multiple_periodicity_with_transformation_function_by_points failed with error code " << status << "\n";
2388       }
2389     }
2390   }
2391
2392   if (! _preCadEdgesIDsPeriodicityVector.empty())
2393   {
2394     for (std::size_t i=0; i < _preCadEdgesIDsPeriodicityVector.size(); i++){
2395       std::vector<int> theEdge1_ids = _preCadEdgesIDsPeriodicityVector[i].shape1IDs;
2396       std::vector<int> theEdge2_ids = _preCadEdgesIDsPeriodicityVector[i].shape2IDs;
2397       // Use the address of the first element of the vector to initialise the array
2398       int* theEdge1_ids_c = &theEdge1_ids[0];
2399       int* theEdge2_ids_c = &theEdge2_ids[0];
2400
2401       std::ostringstream o;
2402       o << "_preCadEdgesIDsPeriodicityVector[" << i << "] = [";
2403       for (std::size_t j=0; j < theEdge1_ids.size(); j++)
2404         o << theEdge1_ids[j] << ", ";
2405       o << "], [";
2406       for (std::size_t j=0; j < theEdge2_ids.size(); j++)
2407         o << theEdge2_ids[j] << ", ";
2408       o << "]";
2409
2410       if (_preCadEdgesIDsPeriodicityVector[i].theSourceVerticesCoords.empty())
2411       {
2412         // If no source points, call peridoicity without transformation function
2413         meshgems_cad_periodicity_transformation_t periodicity_transformation = NULL;
2414         status = cad_add_edge_multiple_periodicity_with_transformation_function(c, theEdge1_ids_c, theEdge1_ids.size(),
2415                                                                                 theEdge2_ids_c, theEdge2_ids.size(), periodicity_transformation, NULL);
2416         if(status != STATUS_OK)
2417           cout << "cad_add_edge_multiple_periodicity_with_transformation_function failed with error code " << status << "\n";
2418       }
2419       else
2420       {
2421         // get the transformation vertices
2422         double* theSourceVerticesCoords_c = &_preCadEdgesIDsPeriodicityVector[i].theSourceVerticesCoords[0];
2423         double* theTargetVerticesCoords_c = &_preCadEdgesIDsPeriodicityVector[i].theTargetVerticesCoords[0];
2424         int nbSourceVertices = _preCadEdgesIDsPeriodicityVector[i].theSourceVerticesCoords.size()/3;
2425         int nbTargetVertices = _preCadEdgesIDsPeriodicityVector[i].theTargetVerticesCoords.size()/3;
2426
2427         status = cad_add_edge_multiple_periodicity_with_transformation_function_by_points(c, theEdge1_ids_c, theEdge1_ids.size(),
2428                                                                                           theEdge2_ids_c, theEdge2_ids.size(), theSourceVerticesCoords_c, nbSourceVertices, theTargetVerticesCoords_c, nbTargetVertices);
2429         if(status != STATUS_OK)
2430           cout << "cad_add_edge_multiple_periodicity_with_transformation_function_by_points failed with error code " << status << "\n";
2431       }
2432     }
2433   }
2434
2435
2436   // TODO: be able to use a mesh in input.
2437   // See imsh usage in Products/templates/mg-cadsurf_template_common.cpp
2438   // => cadsurf_set_mesh
2439
2440   // Use the original dcad
2441   cadsurf_set_dcad(css, dcad);
2442
2443   // Use the original cad
2444   cadsurf_set_cad(css, c);
2445
2446   std::cout << std::endl;
2447   std::cout << "Beginning of Surface Mesh generation" << std::endl;
2448   std::cout << std::endl;
2449
2450   try {
2451     OCC_CATCH_SIGNALS;
2452
2453     status = cadsurf_compute_mesh(css);
2454
2455   }
2456   catch ( std::exception& exc ) {
2457     _comment += exc.what();
2458   }
2459   catch (Standard_Failure& ex) {
2460     _comment += ex.DynamicType()->Name();
2461     if ( ex.GetMessageString() && strlen( ex.GetMessageString() )) {
2462       _comment += ": ";
2463       _comment += ex.GetMessageString();
2464     }
2465   }
2466   catch (...) {
2467     if ( _comment.empty() )
2468       _comment = "Exception in cadsurf_compute_mesh()";
2469   }
2470
2471   std::cout << std::endl;
2472   std::cout << "End of Surface Mesh generation" << std::endl;
2473   std::cout << std::endl;
2474
2475   mesh_t *msh = NULL;
2476   cadsurf_get_mesh(css, &msh);
2477   if(!msh){
2478     /* release the mesh object */
2479     cadsurf_regain_mesh(css, msh);
2480     return error(_comment);
2481   }
2482
2483   std::string GMFFileName = BLSURFPlugin_Hypothesis::GetDefaultGMFFile();
2484   if (_hypothesis)
2485     GMFFileName = _hypothesis->GetGMFFile();
2486   if (GMFFileName != "") {
2487     bool asciiFound  = (GMFFileName.find(".mesh", GMFFileName.length()-5) != std::string::npos);
2488     bool binaryFound = (GMFFileName.find(".meshb",GMFFileName.length()-6) != std::string::npos);
2489     if (!asciiFound && !binaryFound)
2490       GMFFileName.append(".mesh");
2491     mesh_write_mesh(msh, GMFFileName.c_str());
2492   }
2493
2494   /* retrieve mesh data (see meshgems/mesh.h) */
2495   integer nv, ne, nt, nq, vtx[4], tag, nb_tag;
2496   integer *evedg, *evtri, *evquad, *tags_buff, type;
2497   real xyz[3];
2498
2499   mesh_get_vertex_count(msh, &nv);
2500   mesh_get_edge_count(msh, &ne);
2501   mesh_get_triangle_count(msh, &nt);
2502   mesh_get_quadrangle_count(msh, &nq);
2503
2504   evedg  = (integer *)mesh_calloc_generic_buffer(msh);
2505   evtri  = (integer *)mesh_calloc_generic_buffer(msh);
2506   evquad = (integer *)mesh_calloc_generic_buffer(msh);
2507   tags_buff = (integer*)mesh_calloc_generic_buffer(msh);
2508
2509   std::vector<const SMDS_MeshNode*> nodes(nv+1);
2510   std::vector<bool>                  tags(nv+1);
2511
2512   /* enumerated vertices */
2513   for(int iv=1;iv<=nv;iv++) {
2514     mesh_get_vertex_coordinates(msh, iv, xyz);
2515     mesh_get_vertex_tag(msh, iv, &tag);
2516     // Issue 0020656. Use vertex coordinates
2517     nodes[iv] = NULL;
2518     if ( tag > 0 && tag <= pmap.Extent() ) {
2519       TopoDS_Vertex v = TopoDS::Vertex(pmap(tag));
2520       double tol = BRep_Tool::Tolerance( v );
2521       gp_Pnt p = BRep_Tool::Pnt( v );
2522       if ( p.IsEqual( gp_Pnt( xyz[0], xyz[1], xyz[2]), 2*tol))
2523         xyz[0] = p.X(), xyz[1] = p.Y(), xyz[2] = p.Z();
2524       else
2525         tag = 0; // enforced or attracted vertex
2526       nodes[iv] = SMESH_Algo::VertexNode( v, meshDS );
2527     }
2528     if ( !nodes[iv] )
2529       nodes[iv] = meshDS->AddNode(xyz[0], xyz[1], xyz[2]);
2530
2531     // Create group of enforced vertices if requested
2532     BLSURFPlugin_Hypothesis::TEnfVertexCoords projVertex;
2533     projVertex.clear();
2534     projVertex.push_back((double)xyz[0]);
2535     projVertex.push_back((double)xyz[1]);
2536     projVertex.push_back((double)xyz[2]);
2537     std::map< BLSURFPlugin_Hypothesis::TEnfVertexCoords, BLSURFPlugin_Hypothesis::TEnfVertexList >::const_iterator enfCoordsIt = EnfVertexCoords2EnfVertexList.find(projVertex);
2538     if (enfCoordsIt != EnfVertexCoords2EnfVertexList.end())
2539     {
2540       BLSURFPlugin_Hypothesis::TEnfVertexList::const_iterator enfListIt = enfCoordsIt->second.begin();
2541       BLSURFPlugin_Hypothesis::TEnfVertex *currentEnfVertex;
2542       for (; enfListIt != enfCoordsIt->second.end(); ++enfListIt) {
2543         currentEnfVertex = (*enfListIt);
2544         if (currentEnfVertex->grpName != "") {
2545           bool groupDone = false;
2546           SMESH_Mesh::GroupIteratorPtr grIt = aMesh.GetGroups();
2547           while (grIt->more()) {
2548             SMESH_Group * group = grIt->next();
2549             if ( !group ) continue;
2550             SMESHDS_GroupBase* groupDS = group->GetGroupDS();
2551             if ( !groupDS ) continue;
2552             if ( groupDS->GetType()==SMDSAbs_Node && currentEnfVertex->grpName.compare(group->GetName())==0) {
2553               SMESHDS_Group* aGroupDS = static_cast<SMESHDS_Group*>( groupDS );
2554               aGroupDS->SMDSGroup().Add(nodes[iv]);
2555               // How can I inform the hypothesis ?
2556               //                 _hypothesis->AddEnfVertexNodeID(currentEnfVertex->grpName,nodes[iv]->GetID());
2557               groupDone = true;
2558               break;
2559             }
2560           }
2561           if (!groupDone)
2562           {
2563             int groupId;
2564             SMESH_Group* aGroup = aMesh.AddGroup(SMDSAbs_Node, currentEnfVertex->grpName.c_str(), groupId);
2565             aGroup->SetName( currentEnfVertex->grpName.c_str() );
2566             SMESHDS_Group* aGroupDS = static_cast<SMESHDS_Group*>( aGroup->GetGroupDS() );
2567             aGroupDS->SMDSGroup().Add(nodes[iv]);
2568             groupDone = true;
2569           }
2570           if (!groupDone)
2571             throw SALOME_Exception(LOCALIZED("An enforced vertex node was not added to a group"));
2572         }
2573         else
2574           MESSAGE("Group name is empty: '"<<currentEnfVertex->grpName<<"' => group is not created");
2575       }
2576     }
2577
2578     // internal points are tagged to zero
2579     if(tag > 0 && tag <= pmap.Extent() ){
2580       meshDS->SetNodeOnVertex(nodes[iv], TopoDS::Vertex(pmap(tag)));
2581       tags[iv] = false;
2582     } else {
2583       tags[iv] = true;
2584     }
2585   }
2586
2587   /* enumerate edges */
2588   for(int it=1;it<=ne;it++) {
2589     SMDS_MeshEdge* edg;
2590     mesh_get_edge_vertices(msh, it, vtx);
2591     mesh_get_edge_extra_vertices(msh, it, &type, evedg);
2592     mesh_get_edge_tag(msh, it, &tag);
2593
2594     // If PreCAD performed some cleaning operations (remove tiny edges,
2595     // merge edges ...) an output tag can indeed represent several original tags.
2596     // Get the initial tags corresponding to the output tag and redefine the tag as
2597     // the last of the two initial tags (else the output tag is out of emap and hasn't any meaning)
2598     mesh_get_composite_tag_definition(msh, tag, &nb_tag, tags_buff);
2599     if(nb_tag > 1)
2600       tag=tags_buff[nb_tag-1];
2601     if ( tag < 1 || tag > emap.Extent() )
2602     {
2603       std::cerr << "MG-CADSurf BUG:::: Edge tag " << tag
2604                 << " does not point to a CAD edge (nb edges " << emap.Extent() << ")" << std::endl;
2605       continue;
2606     }
2607     if (tags[vtx[0]]) {
2608       Set_NodeOnEdge(meshDS, nodes[vtx[0]], emap(tag));
2609       tags[vtx[0]] = false;
2610     };
2611     if (tags[vtx[1]]) {
2612       Set_NodeOnEdge(meshDS, nodes[vtx[1]], emap(tag));
2613       tags[vtx[1]] = false;
2614     };
2615     if (type == MESHGEMS_MESH_ELEMENT_TYPE_EDGE3) {
2616       // QUADRATIC EDGE
2617       if (tags[evedg[0]]) {
2618         Set_NodeOnEdge(meshDS, nodes[evedg[0]], emap(tag));
2619         tags[evedg[0]] = false;
2620       }
2621       edg = meshDS->AddEdge(nodes[vtx[0]], nodes[vtx[1]], nodes[evedg[0]]);
2622     }
2623     else {
2624       edg = helper.AddEdge(nodes[vtx[0]], nodes[vtx[1]]);
2625     }
2626     meshDS->SetMeshElementOnShape(edg, TopoDS::Edge(emap(tag)));
2627   }
2628
2629   /* enumerate triangles */
2630   for(int it=1;it<=nt;it++) {
2631     SMDS_MeshFace* tri;
2632     mesh_get_triangle_vertices(msh, it, vtx);
2633     mesh_get_triangle_extra_vertices(msh, it, &type, evtri);
2634     mesh_get_triangle_tag(msh, it, &tag);
2635     if (tags[vtx[0]]) {
2636       meshDS->SetNodeOnFace(nodes[vtx[0]], tag);
2637       tags[vtx[0]] = false;
2638     };
2639     if (tags[vtx[1]]) {
2640       meshDS->SetNodeOnFace(nodes[vtx[1]], tag);
2641       tags[vtx[1]] = false;
2642     };
2643     if (tags[vtx[2]]) {
2644       meshDS->SetNodeOnFace(nodes[vtx[2]], tag);
2645       tags[vtx[2]] = false;
2646     };
2647     if (type == MESHGEMS_MESH_ELEMENT_TYPE_TRIA6) {
2648       // QUADRATIC TRIANGLE
2649       if (tags[evtri[0]]) {
2650         meshDS->SetNodeOnFace(nodes[evtri[0]], tag);
2651         tags[evtri[0]] = false;
2652       }
2653       if (tags[evtri[1]]) {
2654         meshDS->SetNodeOnFace(nodes[evtri[1]], tag);
2655         tags[evtri[1]] = false;
2656       }
2657       if (tags[evtri[2]]) {
2658         meshDS->SetNodeOnFace(nodes[evtri[2]], tag);
2659         tags[evtri[2]] = false;
2660       }
2661       tri = meshDS->AddFace(nodes[vtx[0]], nodes[vtx[1]], nodes[vtx[2]],
2662                             nodes[evtri[0]], nodes[evtri[1]], nodes[evtri[2]]);
2663     }
2664     else {
2665       tri = helper.AddFace(nodes[vtx[0]], nodes[vtx[1]], nodes[vtx[2]]);
2666     }
2667     meshDS->SetMeshElementOnShape(tri, tag);
2668   }
2669
2670   /* enumerate quadrangles */
2671   for(int it=1;it<=nq;it++) {
2672     SMDS_MeshFace* quad;
2673     mesh_get_quadrangle_vertices(msh, it, vtx);
2674     mesh_get_quadrangle_extra_vertices(msh, it, &type, evquad);
2675     mesh_get_quadrangle_tag(msh, it, &tag);
2676     if (tags[vtx[0]]) {
2677       meshDS->SetNodeOnFace(nodes[vtx[0]], tag);
2678       tags[vtx[0]] = false;
2679     };
2680     if (tags[vtx[1]]) {
2681       meshDS->SetNodeOnFace(nodes[vtx[1]], tag);
2682       tags[vtx[1]] = false;
2683     };
2684     if (tags[vtx[2]]) {
2685       meshDS->SetNodeOnFace(nodes[vtx[2]], tag);
2686       tags[vtx[2]] = false;
2687     };
2688     if (tags[vtx[3]]) {
2689       meshDS->SetNodeOnFace(nodes[vtx[3]], tag);
2690       tags[vtx[3]] = false;
2691     };
2692     if (type == MESHGEMS_MESH_ELEMENT_TYPE_QUAD9) {
2693       // QUADRATIC QUADRANGLE
2694       std::cout << "This is a quadratic quadrangle" << std::endl;
2695       if (tags[evquad[0]]) {
2696         meshDS->SetNodeOnFace(nodes[evquad[0]], tag);
2697         tags[evquad[0]] = false;
2698       }
2699       if (tags[evquad[1]]) {
2700         meshDS->SetNodeOnFace(nodes[evquad[1]], tag);
2701         tags[evquad[1]] = false;
2702       }
2703       if (tags[evquad[2]]) {
2704         meshDS->SetNodeOnFace(nodes[evquad[2]], tag);
2705         tags[evquad[2]] = false;
2706       }
2707       if (tags[evquad[3]]) {
2708         meshDS->SetNodeOnFace(nodes[evquad[3]], tag);
2709         tags[evquad[3]] = false;
2710       }
2711       if (tags[evquad[4]]) {
2712         meshDS->SetNodeOnFace(nodes[evquad[4]], tag);
2713         tags[evquad[4]] = false;
2714       }
2715       quad = meshDS->AddFace(nodes[vtx[0]], nodes[vtx[1]], nodes[vtx[2]], nodes[vtx[3]],
2716                              nodes[evquad[0]], nodes[evquad[1]], nodes[evquad[2]], nodes[evquad[3]],
2717                              nodes[evquad[4]]);
2718     }
2719     else {
2720       quad = helper.AddFace(nodes[vtx[0]], nodes[vtx[1]], nodes[vtx[2]], nodes[vtx[3]]);
2721     }
2722     meshDS->SetMeshElementOnShape(quad, tag);
2723   }
2724
2725   /* release the mesh object, the rest is released by cleaner */
2726   cadsurf_regain_mesh(css, msh);
2727
2728
2729   // Remove free nodes that can appear e.g. if "remove tiny edges"(IPAL53235)
2730   for(int iv=1;iv<=nv;iv++)
2731     if ( nodes[iv] && nodes[iv]->NbInverseElements() == 0 )
2732       meshDS->RemoveFreeNode( nodes[iv], 0, /*fromGroups=*/false );
2733
2734
2735   if ( needMerge ) // sew mesh computed by MG-CADSurf with pre-existing mesh
2736   {
2737     SMESH_MeshEditor editor( &aMesh );
2738     SMESH_MeshEditor::TListOfListOfNodes nodeGroupsToMerge;
2739     TIDSortedElemSet segementsOnEdge;
2740     TSubMeshSet::iterator smIt;
2741     SMESHDS_SubMesh* smDS;
2742
2743     // merge nodes on EDGE's with ones computed by MG-CADSurf
2744     for ( smIt = mergeSubmeshes.begin(); smIt != mergeSubmeshes.end(); ++smIt )
2745     {
2746       if (! (smDS = *smIt) ) continue;
2747       getNodeGroupsToMerge( smDS, meshDS->IndexToShape((*smIt)->GetID()), nodeGroupsToMerge );
2748
2749       SMDS_ElemIteratorPtr segIt = smDS->GetElements();
2750       while ( segIt->more() )
2751         segementsOnEdge.insert( segIt->next() );
2752     }
2753     // merge nodes
2754     editor.MergeNodes( nodeGroupsToMerge );
2755
2756     // merge segments
2757     SMESH_MeshEditor::TListOfListOfElementsID equalSegments;
2758     editor.FindEqualElements( segementsOnEdge, equalSegments );
2759     editor.MergeElements( equalSegments );
2760
2761     // remove excess segments created on the boundary of viscous layers
2762     const SMDS_TypeOfPosition onFace = SMDS_TOP_FACE;
2763     for ( int i = 1; i <= emap.Extent(); ++i )
2764     {
2765       if ( SMESHDS_SubMesh* smDS = meshDS->MeshElements( emap( i )))
2766       {
2767         SMDS_ElemIteratorPtr segIt = smDS->GetElements();
2768         while ( segIt->more() )
2769         {
2770           const SMDS_MeshElement* seg = segIt->next();
2771           if ( seg->GetNode(0)->GetPosition()->GetTypeOfPosition() == onFace ||
2772                seg->GetNode(1)->GetPosition()->GetTypeOfPosition() == onFace )
2773             meshDS->RemoveFreeElement( seg, smDS );
2774         }
2775       }
2776     }
2777   }
2778
2779
2780   // SetIsAlwaysComputed( true ) to sub-meshes of EDGEs w/o mesh
2781   for (int i = 1; i <= emap.Extent(); i++)
2782     if ( SMESH_subMesh* sm = aMesh.GetSubMeshContaining( emap( i )))
2783       sm->SetIsAlwaysComputed( true );
2784   for (int i = 1; i <= pmap.Extent(); i++)
2785     if ( SMESH_subMesh* sm = aMesh.GetSubMeshContaining( pmap( i )))
2786       if ( !sm->IsMeshComputed() )
2787         sm->SetIsAlwaysComputed( true );
2788
2789   // Set error to FACE's w/o elements
2790   SMESH_ComputeErrorName err = COMPERR_ALGO_FAILED;
2791   if ( _comment.empty() && status == STATUS_OK )
2792   {
2793     err      = COMPERR_WARNING;
2794     _comment = "No mesh elements assigned to a face";
2795   }
2796   bool badFaceFound = false;
2797   for (TopExp_Explorer face_iter(aShape,TopAbs_FACE);face_iter.More();face_iter.Next())
2798   {
2799     TopoDS_Face f = TopoDS::Face(face_iter.Current());
2800     SMESH_subMesh* sm = aMesh.GetSubMesh( f );
2801     if ( !sm->GetSubMeshDS() || sm->GetSubMeshDS()->NbElements() == 0 )
2802     {
2803       sm->GetComputeError().reset( new SMESH_ComputeError( err, _comment, this ));
2804       badFaceFound = true;
2805     }
2806   }
2807   if ( err == COMPERR_WARNING )
2808   {
2809     _comment.clear();
2810   }
2811   if ( status != STATUS_OK && !badFaceFound ) {
2812     error(_comment);
2813   }
2814
2815   // Issue 0019864. On DebianSarge, FE signals do not obey to OSD::SetSignal(false)
2816 #ifndef WIN32
2817   if ( oldFEFlags > 0 )
2818     feenableexcept( oldFEFlags );
2819   feclearexcept( FE_ALL_EXCEPT );
2820 #endif
2821
2822   /*
2823     std::cout << "FacesWithSizeMap" << std::endl;
2824     FacesWithSizeMap.Statistics(std::cout);
2825     std::cout << "EdgesWithSizeMap" << std::endl;
2826     EdgesWithSizeMap.Statistics(std::cout);
2827     std::cout << "VerticesWithSizeMap" << std::endl;
2828     VerticesWithSizeMap.Statistics(std::cout);
2829     std::cout << "FacesWithEnforcedVertices" << std::endl;
2830     FacesWithEnforcedVertices.Statistics(std::cout);
2831   */
2832
2833   return ( status == STATUS_OK && !quadraticSubMeshAndViscousLayer );
2834 }
2835
2836 //================================================================================
2837 /*!
2838  * \brief Terminates computation
2839  */
2840 //================================================================================
2841
2842 void BLSURFPlugin_BLSURF::CancelCompute()
2843 {
2844   _compute_canceled = true;
2845 }
2846
2847 //=============================================================================
2848 /*!
2849  *  SetNodeOnEdge
2850  */
2851 //=============================================================================
2852
2853 void BLSURFPlugin_BLSURF::Set_NodeOnEdge(SMESHDS_Mesh* meshDS, const SMDS_MeshNode* node, const TopoDS_Shape& ed) {
2854   const TopoDS_Edge edge = TopoDS::Edge(ed);
2855
2856   gp_Pnt pnt(node->X(), node->Y(), node->Z());
2857
2858   Standard_Real p0 = 0.0;
2859   Standard_Real p1 = 1.0;
2860   TopLoc_Location loc;
2861   Handle(Geom_Curve) curve = BRep_Tool::Curve(edge, loc, p0, p1);
2862   if ( curve.IsNull() )
2863   {
2864     // issue 22499. Node at a sphere apex
2865     meshDS->SetNodeOnEdge(node, edge, p0);
2866     return;
2867   }
2868
2869   if ( !loc.IsIdentity() ) pnt.Transform( loc.Transformation().Inverted() );
2870   GeomAPI_ProjectPointOnCurve proj(pnt, curve, p0, p1);
2871
2872   double pa = 0.;
2873   if ( proj.NbPoints() > 0 )
2874   {
2875     pa = (double)proj.LowerDistanceParameter();
2876     // Issue 0020656. Move node if it is too far from edge
2877     gp_Pnt curve_pnt = curve->Value( pa );
2878     double dist2     = pnt.SquareDistance( curve_pnt );
2879     double tol       = BRep_Tool::Tolerance( edge );
2880     if ( 1e-14 < dist2 && dist2 <= 1000*tol ) // large enough and within tolerance
2881     {
2882       curve_pnt.Transform( loc );
2883       meshDS->MoveNode( node, curve_pnt.X(), curve_pnt.Y(), curve_pnt.Z() );
2884     }
2885   }
2886
2887   meshDS->SetNodeOnEdge(node, edge, pa);
2888 }
2889
2890 /* Curve definition function See cad_curv_t in file meshgems/cad.h for
2891  * more information.
2892  * NOTE : if when your CAD systems evaluates second
2893  * order derivatives it also computes first order derivatives and
2894  * function evaluation, you can optimize this example by making only
2895  * one CAD call and filling the necessary uv, dt, dtt arrays.
2896  */
2897 status_t curv_fun(real t, real *uv, real *dt, real *dtt, void *user_data)
2898 {
2899   /* t is given. It contains the t (time) 1D parametric coordintaes
2900      of the point PreCAD/MG-CADSurf is querying on the curve */
2901
2902   /* user_data identifies the edge PreCAD/MG-CADSurf is querying
2903    * (see cad_edge_new later in this example) */
2904   const Geom2d_Curve*pargeo = (const Geom2d_Curve*) user_data;
2905
2906   if (uv){
2907    /* MG-CADSurf is querying the function evaluation */
2908     gp_Pnt2d P;
2909     P=pargeo->Value(t);
2910     uv[0]=P.X(); uv[1]=P.Y();
2911   }
2912
2913   if(dt) {
2914    /* query for the first order derivatives */
2915     gp_Vec2d V1;
2916     V1=pargeo->DN(t,1);
2917     dt[0]=V1.X(); dt[1]=V1.Y();
2918   }
2919
2920   if(dtt){
2921     /* query for the second order derivatives */
2922     gp_Vec2d V2;
2923     V2=pargeo->DN(t,2);
2924     dtt[0]=V2.X(); dtt[1]=V2.Y();
2925   }
2926
2927   return STATUS_OK;
2928 }
2929
2930 /* Surface definition function.
2931  * See cad_surf_t in file meshgems/cad.h for more information.
2932  * NOTE : if when your CAD systems evaluates second order derivatives it also
2933  * computes first order derivatives and function evaluation, you can optimize
2934  * this example by making only one CAD call and filling the necessary xyz, du, dv, etc..
2935  * arrays.
2936  */
2937 status_t surf_fun(real *uv, real *xyz, real*du, real *dv,
2938                   real *duu, real *duv, real *dvv, void *user_data)
2939 {
2940   /* uv[2] is given. It contains the u,v coordinates of the point
2941    * PreCAD/MG-CADSurf is querying on the surface */
2942
2943   /* user_data identifies the face PreCAD/MG-CADSurf is querying (see
2944    * cad_face_new later in this example)*/
2945   const Geom_Surface* geometry = (const Geom_Surface*) user_data;
2946
2947   if(xyz){
2948    gp_Pnt P;
2949    P=geometry->Value(uv[0],uv[1]);   // S.D0(U,V,P);
2950    xyz[0]=P.X(); xyz[1]=P.Y(); xyz[2]=P.Z();
2951   }
2952
2953   if(du && dv){
2954     gp_Pnt P;
2955     gp_Vec D1U,D1V;
2956
2957     geometry->D1(uv[0],uv[1],P,D1U,D1V);
2958     du[0]=D1U.X(); du[1]=D1U.Y(); du[2]=D1U.Z();
2959     dv[0]=D1V.X(); dv[1]=D1V.Y(); dv[2]=D1V.Z();
2960   }
2961
2962   if(duu && duv && dvv){
2963
2964     gp_Pnt P;
2965     gp_Vec D1U,D1V;
2966     gp_Vec D2U,D2V,D2UV;
2967
2968     geometry->D2(uv[0],uv[1],P,D1U,D1V,D2U,D2V,D2UV);
2969     duu[0]=D2U.X(); duu[1]=D2U.Y(); duu[2]=D2U.Z();
2970     duv[0]=D2UV.X(); duv[1]=D2UV.Y(); duv[2]=D2UV.Z();
2971     dvv[0]=D2V.X(); dvv[1]=D2V.Y(); dvv[2]=D2V.Z();
2972   }
2973
2974   return STATUS_OK;
2975 }
2976
2977
2978 status_t size_on_surface(integer face_id, real *uv, real *size, void *user_data)
2979 {
2980   TId2ClsAttractorVec::iterator f2attVec;
2981   if (FaceId2PythonSmp.count(face_id) != 0){
2982     assert(Py_IsInitialized());
2983     PyGILState_STATE gstate;
2984     gstate = PyGILState_Ensure();
2985     PyObject* pyresult = PyObject_CallFunction(FaceId2PythonSmp[face_id],(char*)"(f,f)",uv[0],uv[1]);
2986     real result;
2987     if ( pyresult != NULL) {
2988       result = PyFloat_AsDouble(pyresult);
2989       Py_DECREF(pyresult);
2990       //       *size = result;
2991     }
2992     else{
2993       fflush(stderr);
2994       string err_description="";
2995       PyObject* new_stderr = newPyStdOut(err_description);
2996       PyObject* old_stderr = PySys_GetObject((char*)"stderr");
2997       Py_INCREF(old_stderr);
2998       PySys_SetObject((char*)"stderr", new_stderr);
2999       PyErr_Print();
3000       PySys_SetObject((char*)"stderr", old_stderr);
3001       Py_DECREF(new_stderr);
3002       MESSAGE("Can't evaluate f(" << uv[0] << "," << uv[1] << ")" << " error is " << err_description);
3003       result = *((real*)user_data);
3004     }
3005     *size = result;
3006     PyGILState_Release(gstate);
3007   }
3008   else if (( f2attVec = FaceIndex2ClassAttractor.find(face_id)) != FaceIndex2ClassAttractor.end() && !f2attVec->second.empty())
3009   {
3010     real result = 0;
3011     result = 1e100;
3012     std::vector< BLSURFPlugin_Attractor* > & attVec = f2attVec->second;
3013     for ( size_t i = 0; i < attVec.size(); ++i )
3014     {
3015       //result += attVec[i]->GetSize(uv[0],uv[1]);
3016       result = Min( result, attVec[i]->GetSize(uv[0],uv[1]));
3017     }
3018     //*size = result / attVec.size(); // mean of sizes defined by all attractors
3019     *size = result;
3020   }
3021   else {
3022     *size = *((real*)user_data);
3023   }
3024   //   std::cout << "Size_on_surface sur la face " << face_id << " donne une size de: " << *size << std::endl;
3025   return STATUS_OK;
3026 }
3027
3028 status_t size_on_edge(integer edge_id, real t, real *size, void *user_data)
3029 {
3030   if (EdgeId2PythonSmp.count(edge_id) != 0){
3031     assert(Py_IsInitialized());
3032     PyGILState_STATE gstate;
3033     gstate = PyGILState_Ensure();
3034     PyObject* pyresult = PyObject_CallFunction(EdgeId2PythonSmp[edge_id],(char*)"(f)",t);
3035     real result;
3036     if ( pyresult != NULL) {
3037       result = PyFloat_AsDouble(pyresult);
3038       Py_DECREF(pyresult);
3039 //       *size = result;
3040     }
3041     else{
3042       fflush(stderr);
3043       string err_description="";
3044       PyObject* new_stderr = newPyStdOut(err_description);
3045       PyObject* old_stderr = PySys_GetObject((char*)"stderr");
3046       Py_INCREF(old_stderr);
3047       PySys_SetObject((char*)"stderr", new_stderr);
3048       PyErr_Print();
3049       PySys_SetObject((char*)"stderr", old_stderr);
3050       Py_DECREF(new_stderr);
3051       MESSAGE("Can't evaluate f(" << t << ")" << " error is " << err_description);
3052       result = *((real*)user_data);
3053     }
3054     *size = result;
3055     PyGILState_Release(gstate);
3056   }
3057   else {
3058     *size = *((real*)user_data);
3059   }
3060   return STATUS_OK;
3061 }
3062
3063 status_t size_on_vertex(integer point_id, real *size, void *user_data)
3064 {
3065   if (VertexId2PythonSmp.count(point_id) != 0){
3066     assert(Py_IsInitialized());
3067     PyGILState_STATE gstate;
3068     gstate = PyGILState_Ensure();
3069     PyObject* pyresult = PyObject_CallFunction(VertexId2PythonSmp[point_id],(char*)"");
3070     real result;
3071     if ( pyresult != NULL) {
3072       result = PyFloat_AsDouble(pyresult);
3073       Py_DECREF(pyresult);
3074 //       *size = result;
3075     }
3076     else {
3077       fflush(stderr);
3078       string err_description="";
3079       PyObject* new_stderr = newPyStdOut(err_description);
3080       PyObject* old_stderr = PySys_GetObject((char*)"stderr");
3081       Py_INCREF(old_stderr);
3082       PySys_SetObject((char*)"stderr", new_stderr);
3083       PyErr_Print();
3084       PySys_SetObject((char*)"stderr", old_stderr);
3085       Py_DECREF(new_stderr);
3086       MESSAGE("Can't evaluate f()" << " error is " << err_description);
3087       result = *((real*)user_data);
3088     }
3089     *size = result;
3090     PyGILState_Release(gstate);
3091   }
3092   else {
3093     *size = *((real*)user_data);
3094   }
3095  return STATUS_OK;
3096 }
3097
3098 /*
3099  * The following function will be called for PreCAD/MG-CADSurf message
3100  * printing.  See context_set_message_callback (later in this
3101  * template) for how to set user_data.
3102  */
3103 status_t message_cb(message_t *msg, void *user_data)
3104 {
3105   integer errnumber = 0;
3106   char *desc;
3107   message_get_number(msg, &errnumber);
3108   message_get_description(msg, &desc);
3109   string err( desc );
3110   message_cb_user_data * mcud = (message_cb_user_data*)user_data;
3111   // Get all the error message and some warning messages related to license and periodicity
3112   if ( errnumber < 0 ||
3113        err.find("license"    ) != string::npos ||
3114        err.find("periodicity") != string::npos )
3115   {
3116     // remove ^A from the tail
3117     int len = strlen( desc );
3118     while (len > 0 && desc[len-1] != '\n')
3119       len--;
3120     mcud->_error->append( desc, len );
3121   }
3122   else {
3123     if ( errnumber == 3009001 )
3124       * mcud->_progress = atof( desc + 11 ) / 100.;
3125     if ( mcud->_verbosity > 0 )
3126       std::cout << desc << std::endl;
3127   }
3128   return STATUS_OK;
3129 }
3130
3131 /* This is the interrupt callback. PreCAD/MG-CADSurf will call this
3132  * function regularily. See the file meshgems/interrupt.h
3133  */
3134 status_t interrupt_cb(integer *interrupt_status, void *user_data)
3135 {
3136   integer you_want_to_continue = 1;
3137   BLSURFPlugin_BLSURF* tmp = (BLSURFPlugin_BLSURF*)user_data;
3138   you_want_to_continue = !tmp->computeCanceled();
3139
3140   if(you_want_to_continue)
3141   {
3142     *interrupt_status = INTERRUPT_CONTINUE;
3143     return STATUS_OK;
3144   }
3145   else /* you want to stop MG-CADSurf */
3146   {
3147     *interrupt_status = INTERRUPT_STOP;
3148     return STATUS_ERROR;
3149   }
3150 }
3151
3152 //=============================================================================
3153 /*!
3154  *
3155  */
3156 //=============================================================================
3157 bool BLSURFPlugin_BLSURF::Evaluate(SMESH_Mesh&         aMesh,
3158                                    const TopoDS_Shape& aShape,
3159                                    MapShapeNbElems&    aResMap)
3160 {
3161   double diagonal       = aMesh.GetShapeDiagonalSize();
3162   double bbSegmentation = _gen->GetBoundaryBoxSegmentation();
3163   int    _physicalMesh  = BLSURFPlugin_Hypothesis::GetDefaultPhysicalMesh();
3164   double _phySize       = BLSURFPlugin_Hypothesis::GetDefaultPhySize(diagonal, bbSegmentation);
3165   bool   _phySizeRel    = BLSURFPlugin_Hypothesis::GetDefaultPhySizeRel();
3166   //int    _geometricMesh = BLSURFPlugin_Hypothesis::GetDefaultGeometricMesh();
3167   double _angleMesh     = BLSURFPlugin_Hypothesis::GetDefaultAngleMesh();
3168   bool   _quadAllowed   = BLSURFPlugin_Hypothesis::GetDefaultQuadAllowed();
3169   if(_hypothesis) {
3170     _physicalMesh  = (int) _hypothesis->GetPhysicalMesh();
3171     _phySizeRel         = _hypothesis->IsPhySizeRel();
3172     if ( _hypothesis->GetPhySize() > 0)
3173       _phySize          = _phySizeRel ? diagonal*_hypothesis->GetPhySize() : _hypothesis->GetPhySize();
3174     //_geometricMesh = (int) hyp->GetGeometricMesh();
3175     if (_hypothesis->GetAngleMesh() > 0)
3176       _angleMesh        = _hypothesis->GetAngleMesh();
3177     _quadAllowed        = _hypothesis->GetQuadAllowed();
3178   } else {
3179     //0020968: EDF1545 SMESH: Problem in the creation of a mesh group on geometry
3180     // GetDefaultPhySize() sometimes leads to computation failure
3181     _phySize = aMesh.GetShapeDiagonalSize() / _gen->GetBoundaryBoxSegmentation();
3182   }
3183
3184   bool IsQuadratic = _quadraticMesh;
3185
3186   // ----------------
3187   // evaluate 1D
3188   // ----------------
3189   TopTools_DataMapOfShapeInteger EdgesMap;
3190   double fullLen = 0.0;
3191   double fullNbSeg = 0;
3192   for (TopExp_Explorer exp(aShape, TopAbs_EDGE); exp.More(); exp.Next()) {
3193     TopoDS_Edge E = TopoDS::Edge( exp.Current() );
3194     if( EdgesMap.IsBound(E) )
3195       continue;
3196     SMESH_subMesh *sm = aMesh.GetSubMesh(E);
3197     double aLen = SMESH_Algo::EdgeLength(E);
3198     fullLen += aLen;
3199     int nb1d = 0;
3200     if(_physicalMesh==1) {
3201        nb1d = (int)( aLen/_phySize + 1 );
3202     }
3203     else {
3204       // use geometry
3205       double f,l;
3206       Handle(Geom_Curve) C = BRep_Tool::Curve(E,f,l);
3207       double fullAng = 0.0;
3208       double dp = (l-f)/200;
3209       gp_Pnt P1,P2,P3;
3210       C->D0(f,P1);
3211       C->D0(f+dp,P2);
3212       gp_Vec V1(P1,P2);
3213       for(int j=2; j<=200; j++) {
3214         C->D0(f+dp*j,P3);
3215         gp_Vec V2(P2,P3);
3216         fullAng += fabs(V1.Angle(V2));
3217         V1 = V2;
3218         P2 = P3;
3219       }
3220       nb1d = (int)( fullAng/_angleMesh + 1 );
3221     }
3222     fullNbSeg += nb1d;
3223     std::vector<int> aVec(SMDSEntity_Last);
3224     for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i]=0;
3225     if( IsQuadratic > 0 ) {
3226       aVec[SMDSEntity_Node] = 2*nb1d - 1;
3227       aVec[SMDSEntity_Quad_Edge] = nb1d;
3228     }
3229     else {
3230       aVec[SMDSEntity_Node] = nb1d - 1;
3231       aVec[SMDSEntity_Edge] = nb1d;
3232     }
3233     aResMap.insert(std::make_pair(sm,aVec));
3234     EdgesMap.Bind(E,nb1d);
3235   }
3236   double ELen = fullLen/fullNbSeg;
3237   // ----------------
3238   // evaluate 2D
3239   // ----------------
3240   // try to evaluate as in MEFISTO
3241   for (TopExp_Explorer exp(aShape, TopAbs_FACE); exp.More(); exp.Next()) {
3242     TopoDS_Face F = TopoDS::Face( exp.Current() );
3243     SMESH_subMesh *sm = aMesh.GetSubMesh(F);
3244     GProp_GProps G;
3245     BRepGProp::SurfaceProperties(F,G);
3246     double anArea = G.Mass();
3247     int nb1d = 0;
3248     std::vector<int> nb1dVec;
3249     for (TopExp_Explorer exp1(F,TopAbs_EDGE); exp1.More(); exp1.Next()) {
3250       int nbSeg = EdgesMap.Find(exp1.Current());
3251       nb1d += nbSeg;
3252       nb1dVec.push_back( nbSeg );
3253     }
3254     int nbQuad = 0;
3255     int nbTria = (int) ( anArea/( ELen*ELen*sqrt(3.) / 4 ) );
3256     int nbNodes = (int) ( ( nbTria*3 - (nb1d-1)*2 ) / 6 + 1 );
3257     if ( _quadAllowed )
3258     {
3259       if ( nb1dVec.size() == 4 ) // quadrangle geom face
3260       {
3261         int n1 = nb1dVec[0], n2 = nb1dVec[ nb1dVec[1] == nb1dVec[0] ? 2 : 1 ];
3262         nbQuad = n1 * n2;
3263         nbNodes = (n1 + 1) * (n2 + 1);
3264         nbTria = 0;
3265       }
3266       else
3267       {
3268         nbTria = nbQuad = nbTria / 3 + 1;
3269       }
3270     }
3271     std::vector<int> aVec(SMDSEntity_Last,0);
3272     if( IsQuadratic ) {
3273       int nb1d_in = (nbTria*3 - nb1d) / 2;
3274       aVec[SMDSEntity_Node] = nbNodes + nb1d_in;
3275       aVec[SMDSEntity_Quad_Triangle] = nbTria;
3276       aVec[SMDSEntity_Quad_Quadrangle] = nbQuad;
3277     }
3278     else {
3279       aVec[SMDSEntity_Node] = nbNodes;
3280       aVec[SMDSEntity_Triangle] = nbTria;
3281       aVec[SMDSEntity_Quadrangle] = nbQuad;
3282     }
3283     aResMap.insert(std::make_pair(sm,aVec));
3284   }
3285
3286   // ----------------
3287   // evaluate 3D
3288   // ----------------
3289   GProp_GProps G;
3290   BRepGProp::VolumeProperties(aShape,G);
3291   double aVolume = G.Mass();
3292   double tetrVol = 0.1179*ELen*ELen*ELen;
3293   int nbVols  = int(aVolume/tetrVol);
3294   int nb1d_in = int(( nbVols*6 - fullNbSeg ) / 6 );
3295   std::vector<int> aVec(SMDSEntity_Last);
3296   for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i]=0;
3297   if( IsQuadratic ) {
3298     aVec[SMDSEntity_Node] = nb1d_in/3 + 1 + nb1d_in;
3299     aVec[SMDSEntity_Quad_Tetra] = nbVols;
3300   }
3301   else {
3302     aVec[SMDSEntity_Node] = nb1d_in/3 + 1;
3303     aVec[SMDSEntity_Tetra] = nbVols;
3304   }
3305   SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
3306   aResMap.insert(std::make_pair(sm,aVec));
3307
3308   return true;
3309 }