src/Model/Model_BodyBuilder.cpp

   1 // Copyright (C) 2014-2023  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 #include <Model_BodyBuilder.h>
  21
  22 #include <Locale_Convert.h>
  23
  24 #include <Model_Data.h>
  25 #include <Model_Document.h>
  26 #include <ModelAPI_Session.h>
  27 #include <TNaming_Builder.hxx>
  28 #include <TNaming_NamedShape.hxx>
  29 #include <TNaming_Iterator.hxx>
  30 #include <TNaming_Tool.hxx>
  31 #include <TNaming_SameShapeIterator.hxx>
  32 #include <TDataStd_Name.hxx>
  33 #include <TDataStd_Integer.hxx>
  34 #include <TDataStd_ExtStringList.hxx>
  35 #include <TopoDS.hxx>
  36 #include <TopoDS_Face.hxx>
  37 #include <TDF_ChildIterator.hxx>
  38 #include <TDF_ChildIDIterator.hxx>
  39 #include <TDF_Reference.hxx>
  40 #include <TDF_Tool.hxx>
  41 #include <TopTools_MapOfShape.hxx>
  42 #include <TopExp_Explorer.hxx>
  43 #include <TopTools_ListOfShape.hxx>
  44 #include <TopTools_ListIteratorOfListOfShape.hxx>
  45 #include <TopTools_DataMapOfShapeListOfShape.hxx>
  46 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
  47 #include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
  48 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  49 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  50 #include <TopTools_IndexedMapOfShape.hxx>
  51 #include <TopTools_DataMapOfShapeShape.hxx>
  52 #include <TopExp.hxx>
  53 #include <BRepTools.hxx>
  54 #include <BRep_Tool.hxx>
  55 #include <BRepTools_History.hxx>
  56 #include <GeomAPI_Shape.h>
  57 #include <GeomAPI_ShapeExplorer.h>
  58 #include <GeomAlgoAPI_MakeShape.h>
  59 #include <GeomAlgoAPI_SortListOfShapes.h>
  60 #include <Config_PropManager.h>
  61 // DEB
  62 //#include <TCollection_AsciiString.hxx>
  63 //#define DEB_IMPORT 1
  64
  65 /// reference to the shape in external document: sting list attribute identifier
  66 static const Standard_GUID kEXTERNAL_SHAPE_REF("9aa5dd14-6d34-4a8d-8786-05842fd7bbbd");
  67
  68 static const int INVALID_TAG            = -1;
  69 static const int GENERATED_VERTICES_TAG = 1;
  70 static const int GENERATED_EDGES_TAG    = 2;
  71 static const int GENERATED_FACES_TAG    = 3;
  72 static const int MODIFIED_VERTICES_TAG  = 4;
  73 static const int MODIFIED_EDGES_TAG     = 5;
  74 static const int MODIFIED_FACES_TAG     = 6;
  75 static const int DELETED_TAG            = 7;
  76 static const int PRIMITIVES_START_TAG   = 11;
  77
  78 static int getGenerationTag(const TopoDS_Shape& theShape) {
  79   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  80   switch (aShapeType) {
  81     case TopAbs_VERTEX: return GENERATED_VERTICES_TAG;
  82     case TopAbs_EDGE:   return GENERATED_EDGES_TAG;
  83     case TopAbs_FACE:   return GENERATED_FACES_TAG;
  84     default: break; // [to avoid compilation warning]
  85   }
  86
  87   return INVALID_TAG;
  88 }
  89
  90 static int getModificationTag(const TopoDS_Shape& theShape) {
  91   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  92   switch (aShapeType) {
  93     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  94     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  95     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  96     default: break; // [to avoid compilation warning]
  97   }
  98
  99   return INVALID_TAG;
 100 }
 101
 102 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
 103                             const TopoDS_Shape& theOldShape,
 104                             const TopoDS_Shape& theNewShape)
 105 {
 106   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 107     aNamingIt.More();
 108     aNamingIt.Next())
 109   {
 110     if (aNamingIt.NewShape().IsSame(theNewShape)
 111       && aNamingIt.OldShape().IsSame(theOldShape))
 112     {
 113       return true;
 114     }
 115   }
 116
 117   return false;
 118 }
 119
 120 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 121 : ModelAPI_BodyBuilder(theOwner),
 122   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 123 {
 124 }
 125
 126 /// Checks that shape is presented in the tree with not-selection evolution
 127 /// In theOriginalLabel it returns label where NS of old sub-shape is stored
 128 static bool isShapeInTree(const TDF_Label& theAccess1, const TDF_Label& theAccess2,
 129   TopoDS_Shape theShape, TDF_Label& theOriginalLabel)
 130 {
 131   bool aResult = TNaming_Tool::HasLabel(theAccess1, theShape);
 132   if (aResult) { //check evolution and a label of this shape
 133     for(TNaming_SameShapeIterator aShapes(theShape, theAccess1); aShapes.More(); aShapes.Next())
 134     {
 135       Handle(TNaming_NamedShape) aNS;
 136       if (aShapes.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 137         if (aNS->Evolution() != TNaming_SELECTED) {
 138           theOriginalLabel = aNS->Label();
 139           return true;
 140         }
 141       }
 142     }
 143   }
 144   if (!theAccess2.IsNull()) {
 145     static const TDF_Label anEmpty;
 146     return isShapeInTree(theAccess2, anEmpty, theShape, theOriginalLabel);
 147   }
 148   return false;
 149 }
 150
 151 /// Stores entry to the external label in the entries list at this label
 152 static void storeExternalReference(const TDF_Label& theExternal, const TDF_Label theThis)
 153 {
 154   // store information about the external document reference to restore old shape on open
 155   if (!theExternal.IsNull() && !theExternal.Root().IsEqual(theThis.Root())) {
 156     Handle(TDataStd_ExtStringList) anEntries;
 157     if (!theThis.FindAttribute(kEXTERNAL_SHAPE_REF, anEntries)) {
 158       anEntries = TDataStd_ExtStringList::Set(theThis, kEXTERNAL_SHAPE_REF);
 159     }
 160     TCollection_AsciiString anEntry;
 161     TDF_Tool::Entry(theExternal, anEntry);
 162     // check it already contains this entry
 163     TDataStd_ListOfExtendedString::Iterator anIter(anEntries->List());
 164     for(; anIter.More(); anIter.Next())
 165       if (anIter.Value() == anEntry)
 166         break;
 167     if (!anIter.More()) {
 168       anEntries->Append(anEntry);
 169     }
 170   }
 171 }
 172
 173 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 174                               const bool theIsStoreSameShapes)
 175 {
 176   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 177   if (aData) {
 178     TDF_Label aShapeLab = aData->shapeLab();
 179     // clean builders
 180     clean();
 181     // store the new shape as primitive
 182     TNaming_Builder aBuilder(aShapeLab);
 183     if (!theShape)
 184       return;  // bad shape
 185     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 186     if (aShape.IsNull())
 187       return;  // null shape inside
 188
 189     if(!theIsStoreSameShapes) {
 190       Handle(TNaming_NamedShape) aNS;
 191       if (TNaming_Tool::HasLabel(aShapeLab, aShape))
 192         aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 193       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 194       if(!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShape)) {
 195         // This shape is already in document, store reference instead of shape;
 196         const TDF_Label aFoundLabel = aNS->Label();
 197         TDF_Reference::Set(aShapeLab, aFoundLabel);
 198         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 199         return;
 200       }
 201     }
 202
 203     aBuilder.Generated(aShape);
 204     // register name
 205     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 206     if(!aBuilder.NamedShape()->IsEmpty()) {
 207       Handle(TDataStd_Name) anAttr;
 208       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 209         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 210         if(!aName.empty()) {
 211           std::shared_ptr<Model_Document> aDoc =
 212             std::dynamic_pointer_cast<Model_Document>(document());
 213           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 214         }
 215       }
 216     }
 217   }
 218 }
 219
 220 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 221   const GeomShapePtr& theToShape, const bool theIsCleanStored)
 222 {
 223   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 224   if (aData) {
 225     // clean builders
 226     if (theIsCleanStored)
 227       clean();
 228     TNaming_Builder* aBuilder = builder(0);
 229     if (!theFromShape || !theToShape)
 230       return;  // bad shape
 231     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 232     if (aShapeBasis.IsNull())
 233       return;  // null shape inside
 234     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 235     if (aShapeNew.IsNull())
 236       return;  // null shape inside
 237
 238     // There is no sense to write history if old shape does not exist in the document.
 239     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 240       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 241     TDF_Label anOriginalLabel;
 242     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeBasis, anOriginalLabel)) {
 243       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 244         aBuilder->Generated(aShapeNew);
 245       }
 246     } else {
 247       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 248         myBuilders.erase(0);
 249         aBuilder = builder(0);
 250       }
 251
 252       aBuilder->Generated(aShapeBasis, aShapeNew);
 253       // store information about the external document reference to restore old shape on open
 254       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 255     }
 256
 257     // register name
 258     if(!aBuilder->NamedShape()->IsEmpty()) {
 259       Handle(TDataStd_Name) anAttr;
 260       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 261         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 262         if(!aName.empty()) {
 263           std::shared_ptr<Model_Document> aDoc =
 264             std::dynamic_pointer_cast<Model_Document>(document());
 265           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 266         }
 267       }
 268     }
 269   }
 270 }
 271
 272 void Model_BodyBuilder::storeGenerated(const std::list<GeomShapePtr>& theFromShapes,
 273   const GeomShapePtr& theToShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 274 {
 275   bool aStored = false;
 276   std::list<GeomShapePtr>::const_iterator anOldIter = theFromShapes.cbegin();
 277   for (; anOldIter != theFromShapes.cend(); anOldIter++) {
 278     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire();
 279     if (!aStore) {
 280       ListOfShape aNews; // check this old really generates theToShape
 281       theMakeShape->generated(*anOldIter, aNews);
 282       ListOfShape::iterator aNewIter = aNews.begin();
 283       for (; aNewIter != aNews.end(); aNewIter++) {
 284         if (theToShape->isSame(*aNewIter))
 285           break;
 286       }
 287       aStore = aNewIter != aNews.end();
 288     }
 289     if (aStore) {
 290       storeGenerated(*anOldIter, theToShape, !aStored);
 291       TNaming_Builder* aBuilder = builder(0);
 292       aStored = !aBuilder->NamedShape()->IsEmpty();
 293     }
 294   }
 295   if (!aStored) { // store as PRIMITIVE, but clean in any way
 296     store(theToShape);
 297     return;
 298   }
 299 }
 300
 301 static TDF_Label builderLabel(DataPtr theData, const int theTag )
 302 {
 303   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theData);
 304   return theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag);
 305 }
 306
 307 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 308 {
 309   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 310   if (aFind == myBuilders.end()) {
 311     myBuilders[theTag] = new TNaming_Builder(builderLabel(data(), theTag));
 312     aFind = myBuilders.find(theTag);
 313   }
 314   return aFind->second;
 315 }
 316
 317 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 318                                       const GeomShapePtr& theNewShape,
 319                                       const bool theIsCleanStored)
 320 {
 321   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 322   if (aData) {
 323     // clean builders
 324     if (theIsCleanStored) clean();
 325     TNaming_Builder* aBuilder = builder(0);
 326     if (!theOldShape || !theNewShape)
 327       return;  // bad shape
 328     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 329     if (aShapeOld.IsNull())
 330       return;  // null shape inside
 331     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 332     if (aShapeNew.IsNull())
 333       return;  // null shape inside
 334
 335     // There is no sense to write history if old shape does not exist in the document.
 336     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 337       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 338     TDF_Label anOriginalLabel;
 339     TopTools_ListOfShape anOldList;
 340     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeOld, anOriginalLabel)) {
 341       // check this could be a compund by the whole feature selection
 342       if (aShapeOld.ShapeType() == TopAbs_COMPOUND)  {
 343         for(TopoDS_Iterator aCompIter(aShapeOld); aCompIter.More(); aCompIter.Next()) {
 344           if (isShapeInTree(aData->shapeLab(), anAccess2, aCompIter.Value(), anOriginalLabel)) {
 345             anOldList.Append(aCompIter.Value());
 346           } else {
 347             anOldList.Clear();
 348             break;
 349           }
 350         }
 351       }
 352     } else {
 353       anOldList.Append(aShapeOld);
 354     }
 355     if (anOldList.IsEmpty()) {
 356       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 357         aBuilder->Generated(aShapeNew);
 358       }
 359     } else {
 360       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 361         myBuilders.erase(0);
 362         aBuilder = builder(0);
 363       }
 364       TopTools_ListIteratorOfListOfShape anOldIter(anOldList);
 365       for(; anOldIter.More(); anOldIter.Next()) {
 366         aBuilder->Modify(anOldIter.Value(), aShapeNew);
 367       }
 368       // store information about the external document reference to restore old shape on open
 369       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 370     }
 371
 372     if(!aBuilder->NamedShape()->IsEmpty()) {
 373       Handle(TDataStd_Name) anAttr;
 374       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(), anAttr)) {
 375         std::wstring aName = Locale::Convert::toWString(anAttr->Get().ToExtString());
 376         if(!aName.empty()) {
 377           std::shared_ptr<Model_Document> aDoc =
 378             std::dynamic_pointer_cast<Model_Document>(document());
 379           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 380         }
 381       }
 382     }
 383   }
 384 }
 385
 386 void Model_BodyBuilder::storeModified(const std::list<GeomShapePtr>& theOldShapes,
 387   const GeomShapePtr& theNewShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 388 {
 389   bool aStored = false;
 390   std::list<GeomShapePtr>::const_iterator anOldIter = theOldShapes.cbegin();
 391   for(; anOldIter != theOldShapes.cend(); anOldIter++) {
 392     // compounds may cause crash if call "modified"
 393     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire() ||
 394                 (*anOldIter)->isCompSolid();
 395     if (!aStore) {
 396       ListOfShape aNews; // check this old really modifies theNewShape
 397       theMakeShape->modified(*anOldIter, aNews);
 398       ListOfShape::iterator aNewIter = aNews.begin();
 399       for(; aNewIter != aNews.end(); aNewIter++) {
 400         if (theNewShape->isSame(*aNewIter))
 401           break;
 402       }
 403       aStore = aNewIter != aNews.end();
 404     }
 405     if (aStore) {
 406       storeModified(*anOldIter, theNewShape, !aStored);
 407       TNaming_Builder* aBuilder = builder(0);
 408       aStored = !aBuilder->NamedShape()->IsEmpty();
 409     }
 410   }
 411   if (!aStored) {
 412     // check the new shape is already in the tree, so, no need to store primitive, just reference
 413     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 414     if (aData.get()) {
 415       TDF_Label aShapeLab = aData->shapeLab();
 416       TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 417       Handle(TNaming_NamedShape) aNS;
 418       if (TNaming_Tool::HasLabel(aShapeLab, aShapeNew))
 419         aNS = TNaming_Tool::NamedShape(aShapeNew, aShapeLab);
 420       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 421       if (!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShapeNew)) {
 422         // This shape is already in document, store reference instead of shape;
 423         const TDF_Label aFoundLabel = aNS->Label();
 424         TDF_Reference::Set(aShapeLab, aFoundLabel);
 425         myBuilders.erase(0);
 426         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 427         return;
 428       }
 429     }
 430     store(theNewShape); // store as PRIMITIVE, but clean in any way
 431     return;
 432   }
 433 }
 434
 435 void Model_BodyBuilder::clean()
 436 {
 437   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 438   if (aLab.IsNull())
 439     return;
 440   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 441   for(; aBuilder != myBuilders.end(); aBuilder++) {
 442     Handle(TNaming_NamedShape) aNS = aBuilder->second->NamedShape();
 443     delete aBuilder->second;
 444     if (!aNS.IsNull() && !aNS->Label().IsNull())
 445       aNS->Label().ForgetAttribute(TNaming_NamedShape::GetID());
 446   }
 447   myBuilders.clear();
 448   myPrimitivesNamesIndexMap.clear();
 449   // remove the old reference (if any)
 450   aLab.ForgetAttribute(TDF_Reference::GetID());
 451   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 452   TDF_ChildIDIterator anEntriesIter(aLab, kEXTERNAL_SHAPE_REF, true);
 453   for(; anEntriesIter.More(); anEntriesIter.Next()) {
 454     anEntriesIter.Value()->Label().ForgetAttribute(kEXTERNAL_SHAPE_REF);
 455   }
 456 }
 457
 458 void Model_BodyBuilder::cleanCash()
 459 {
 460   myPrimitivesNamesIndexMap.clear();
 461 }
 462
 463 Model_BodyBuilder::~Model_BodyBuilder()
 464 {
 465   clean();
 466 }
 467
 468 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 469 {
 470   std::string aName = theName;
 471   std::string aPrefix = "";
 472   switch (theTag) {
 473     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 474     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 475     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 476     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 477     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 478     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 479   }
 480   aName.insert(0, aPrefix);
 481
 482   TDataStd_Name::Set(builderLabel(data(), theTag), aName.c_str());
 483 }
 484 bool Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 485                                   const std::string& theName,
 486                                   const bool theCheckIsInResult)
 487 {
 488   GeomShapePtr aResultShape = shape();
 489   if (theCheckIsInResult) {
 490     bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 491     if (aNewShapeIsNotInResultShape) {
 492       return false;
 493     }
 494   }
 495
 496   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 497   builder(myFreePrimitiveTag)->Generated(aShape);
 498   if (!theName.empty()) {
 499     std::string aName = theName;
 500     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 501       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 502       aName += "_" + std::to_string(++(anIndexTags.index));
 503       anIndexTags.tags.push_back(myFreePrimitiveTag);
 504       if (anIndexTags.index == 2) {
 505         buildName(anIndexTags.tags.front(), theName + "_1");
 506       }
 507     }
 508     else {
 509       IndexTags anIndexTags;
 510       anIndexTags.index = 1;
 511       anIndexTags.tags.push_back(myFreePrimitiveTag);
 512       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 513     }
 514
 515     buildName(myFreePrimitiveTag, aName);
 516   }
 517   ++myFreePrimitiveTag;
 518   return true;
 519 }
 520
 521 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 522                                   const GeomShapePtr& theNewShape,
 523                                   const std::string& theName)
 524 {
 525   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 526   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 527   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 528   int aTag;
 529   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 530     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 531     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 532     aTag = aNewShapeType == TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 533     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 534       builder(aTag)->Generated(anOldShape, anExp.Current());
 535     }
 536     buildName(aTag, theName);
 537   } else {
 538     aTag = getGenerationTag(aNewShape);
 539     if (aTag == INVALID_TAG) return;
 540     builder(aTag)->Generated(anOldShape, aNewShape);
 541     buildName(aTag, theName);
 542   }
 543 }
 544
 545 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 546                                  const GeomShapePtr& theNewShape,
 547                                  const std::string& theName)
 548 {
 549   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 550   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 551   int aTag = getModificationTag(aNewShape);
 552   if (aTag == INVALID_TAG) return;
 553   builder(aTag)->Modify(anOldShape, aNewShape);
 554   buildName(aTag, theName);
 555 }
 556
 557 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 558                                           const GeomShapePtr& theOldShape,
 559                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 560                                           const GeomShapePtr& theShapesToExclude)
 561 {
 562   TopTools_MapOfShape anAlreadyProcessedShapes;
 563   GeomShapePtr aResultShape = shape();
 564   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 565        anExp.more();
 566        anExp.next())
 567   {
 568     GeomShapePtr anOldSubShape = anExp.current();
 569     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 570     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 571         || !theAlgo->isDeleted(anOldSubShape)
 572         || aResultShape->isSubShape(anOldSubShape, false)
 573         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 574     {
 575       continue;
 576     }
 577
 578     ListOfShape aNewShapes;
 579     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 580       theAlgo->modified(anOldSubShape, aNewShapes);
 581     }
 582
 583     if (aNewShapes.size() == 0
 584         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 585       builder(DELETED_TAG)->Delete(anOldSubShape_);
 586     }
 587   }
 588 }
 589
 590 // Keep only the shapes with minimal shape type
 591 static void keepTopLevelShapes(ListOfShape& theShapes,
 592                                const TopoDS_Shape& theRoot,
 593                                const GeomShapePtr& theResultShape = GeomShapePtr())
 594 {
 595   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 596   ListOfShape::iterator anIt = theShapes.begin();
 597   while (anIt != theShapes.end()) {
 598     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 599     bool aSkip = aNewShape.IsNull() ||
 600       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 601     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 602         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 603       ListOfShape::iterator aRemoveIt = anIt++;
 604       theShapes.erase(aRemoveIt);
 605     } else {
 606       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 607       if (aType < aKeepShapeType) {
 608         // found a shape with lesser shape type => remove all previous shapes
 609         aKeepShapeType = aType;
 610         theShapes.erase(theShapes.begin(), anIt);
 611         ++anIt;
 612       } else if (aType > aKeepShapeType) {
 613         // shapes with greater shape type should be removed from the list
 614         ListOfShape::iterator aRemoveIt = anIt++;
 615         theShapes.erase(aRemoveIt);
 616       } else
 617         ++anIt;
 618     }
 619   }
 620 }
 621
 622 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 623                                            const GeomShapePtr& theOldShape,
 624                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 625                                            const std::string& theName)
 626 {
 627   GeomShapePtr aResultShape = shape();
 628   GeomShapePtr aShapeToExplore = theOldShape;
 629   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 630     // use optimized set of old shapes for this
 631     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 632                                                       aResultShape,
 633                                                       theShapeTypeToExplore);
 634     if (aCompound.get()) aShapeToExplore = aCompound;
 635   }
 636
 637   TopTools_MapOfShape anAlreadyProcessedShapes;
 638   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 639   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 640        anOldShapeExp.more();
 641        anOldShapeExp.next())
 642   {
 643     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 644     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 645
 646     // There is no sense to write history if shape already processed
 647     // or old shape does not exist in the document.
 648     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 649     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 650       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 651     TDF_Label anOriginalLabel;
 652     bool anOldSubShapeNotInTree =
 653       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 654     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 655       continue;
 656     }
 657
 658     // Get new shapes.
 659     ListOfShape aNewShapes;
 660     theAlgo->modified(anOldSubShape, aNewShapes);
 661
 662     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 663          aNewShapesIt != aNewShapes.cend();
 664          ++aNewShapesIt)
 665     {
 666       GeomShapePtr aNewShape = *aNewShapesIt;
 667       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 668       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 669
 670       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 671       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 672       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape)
 673         continue;
 674
 675       if (aResultShape->isSame(aNewShape))
 676         continue; // it is stored on the root level (2241 - history propagation issue)
 677
 678       int aTag = isGenerated ? getGenerationTag(aNewShape_) : getModificationTag(aNewShape_);
 679       TNaming_Builder*aBuilder = builder(aTag);
 680       if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_))
 681         continue; // new shape was already stored.
 682
 683       buildName(aTag, theName);
 684       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 685                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 686       // store information about the external document reference to restore old shape on open
 687       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 688     }
 689   }
 690 }
 691
 692 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 693                                             const GeomShapePtr& theOldShape,
 694                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 695                                             const std::string& theName,
 696                                             const bool theSaveOldIfNotInTree)
 697 {
 698   GeomShapePtr aResultShape = shape();
 699   TopTools_MapOfShape anAlreadyProcessedShapes;
 700   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 701   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 702        anOldShapeExp.more();
 703        anOldShapeExp.next())
 704   {
 705     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 706     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 707
 708     // There is no sense to write history if shape already processed
 709     // or old shape does not exist in the document.
 710     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 711     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 712       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 713     TDF_Label anOriginalLabel;
 714     bool anOldSubShapeNotInTree =
 715       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 716     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 717       // The second condition is added due to #20170 because sub-shape must be added to real parent
 718       // shape, not the reference. The naming name of pure reference is not registered in document.
 719       if (theSaveOldIfNotInTree && !aData->shapeLab().IsAttribute(TDF_Reference::GetID())) {
 720         std::string aSelectionName = theName + "Selected";
 721         generated(anOldSubShape, aSelectionName, false);
 722       } else
 723         continue;
 724     }
 725
 726     // Get new shapes.
 727     ListOfShape aNewShapes;
 728     theAlgo->generated(anOldSubShape, aNewShapes);
 729
 730     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 731
 732     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 733          aNewShapesIt != aNewShapes.cend();
 734          ++aNewShapesIt)
 735     {
 736       GeomShapePtr aNewShape = *aNewShapesIt;
 737       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 738
 739       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 740       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 741       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape) {
 742         continue;
 743       }
 744
 745       if (aResultShape->isSame(aNewShape))
 746         continue; // it is stored on the root level
 747
 748       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 749       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 750         // TODO: This is a workaround. New shape should be only edge or face.
 751         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 752                                                                             : TopAbs_FACE;
 753         int aTag = aNewShapeType == TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 754         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 755           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 756           // store information about the external document reference to restore old shape on open
 757           storeExternalReference(anOriginalLabel, builderLabel(data(), aTag));
 758         }
 759         buildName(aTag, theName);
 760       } else {
 761         int aTag = getGenerationTag(aNewShape_);
 762         if (aTag == INVALID_TAG) return;
 763         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 764         buildName(aTag, theName);
 765         // store information about the external document reference to restore old shape on open
 766         storeExternalReference(anOriginalLabel, builderLabel(data(), aTag));
 767       }
 768     }
 769   }
 770 }
 771
 772 // LCOV_EXCL_START
 773 //=======================================================================
 774 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 775   const TopAbs_ShapeEnum        theGeneratedFrom,
 776   TopTools_DataMapOfShapeShape& theDangles)
 777 {
 778   theDangles.Clear();
 779   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 780   TopAbs_ShapeEnum GeneratedTo;
 781   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 782   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 783   else return Standard_False;
 784   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 785   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 786     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 787     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 788     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 789   }
 790   return theDangles.Extent();
 791 }
 792
 793 //=======================================================================
 794 void loadGeneratedDangleShapes(
 795   const TopoDS_Shape&      theShapeIn,
 796   const TopAbs_ShapeEnum   theGeneratedFrom,
 797   TNaming_Builder *        theBuilder)
 798 {
 799   TopTools_DataMapOfShapeShape dangles;
 800   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 801   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 802   for (; itr.More(); itr.Next())
 803     theBuilder->Generated(itr.Key(), itr.Value());
 804 }
 805 // LCOV_EXCL_STOP
 806
 807 //=======================================================================
 808 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 809                                        const std::string& theName)
 810 {
 811   if(theShape->isNull()) return;
 812   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 813   std::string aName;
 814   if (aShape.ShapeType() == TopAbs_SOLID) {
 815     TopExp_Explorer expl(aShape, TopAbs_FACE);
 816     for (; expl.More(); expl.Next()) {
 817       builder(myFreePrimitiveTag)->Generated(expl.Current());
 818       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 819       aName = theName + "_" + aStr.ToCString();
 820       buildName(myFreePrimitiveTag, aName);
 821       ++myFreePrimitiveTag;
 822     }
 823   }
 824   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 825     // load faces and all the free edges
 826     TopTools_IndexedMapOfShape Faces;
 827     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 828     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 829       TopExp_Explorer expl(aShape, TopAbs_FACE);
 830       for (; expl.More(); expl.Next()) {
 831         builder(myFreePrimitiveTag)->Generated(expl.Current());
 832         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 833         aName = theName + "_" + aStr.ToCString();
 834         buildName(myFreePrimitiveTag, aName);
 835         ++myFreePrimitiveTag;
 836       }
 837     }
 838     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 839     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 840     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 841     {
 842       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 843       if (aLL.Extent() < 2) {
 844         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 845           continue;
 846         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 847         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 848         aName = theName + "_" + aStr.ToCString();
 849         buildName(myFreePrimitiveTag, aName);
 850         ++myFreePrimitiveTag;
 851       } else {
 852         TopTools_ListIteratorOfListOfShape anIter(aLL);
 853         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 854         anIter.Next();
 855         if(aFace.IsEqual(anIter.Value())) {
 856           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 857           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 858           aName = theName + "_" + aStr.ToCString();
 859           buildName(myFreePrimitiveTag, aName);
 860           ++myFreePrimitiveTag;
 861         }
 862       }
 863     }
 864   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 865     TopTools_IndexedMapOfShape Edges;
 866     BRepTools::Map3DEdges(aShape, Edges);
 867     if (Edges.Extent() == 1) {
 868       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 869       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 870       for (; expl.More(); expl.Next()) {
 871         builder(myFreePrimitiveTag)->Generated(expl.Current());
 872         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 873         aName = theName + "_" + aStr.ToCString();
 874         buildName(myFreePrimitiveTag, aName);
 875         ++myFreePrimitiveTag;
 876       }
 877     } else {
 878       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 879       for (; expl.More(); expl.Next()) {
 880         builder(myFreePrimitiveTag)->Generated(expl.Current());
 881         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 882         aName = theName + "_" + aStr.ToCString();
 883         buildName(myFreePrimitiveTag, aName);
 884         ++myFreePrimitiveTag;
 885       }
 886       // and load generated vertices.
 887       TopTools_DataMapOfShapeShape generated;
 888       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 889       {
 890         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 891         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 892       }
 893     }
 894   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 895     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 896     for (; expl.More(); expl.Next()) {
 897       builder(myFreePrimitiveTag)->Generated(expl.Current());
 898       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 899       aName = theName + "_" + aStr.ToCString();
 900       buildName(myFreePrimitiveTag, aName);
 901       ++myFreePrimitiveTag;
 902     }
 903   }
 904 }
 905
 906 //=======================================================================
 907 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 908   TopTools_ListOfShape&   theList)
 909 {
 910   theList.Clear();
 911   // edges -> ancestor faces list
 912   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 913   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 914   // keeps the shapes which are already in the resulting list
 915   TopTools_MapOfShape alreadyThere;
 916   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 917   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 918
 919   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 920   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 921     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 922     if (ancestors.Extent() < 2)
 923       continue;
 924     Standard_Integer anID = 0;
 925     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 926       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 927     }
 928     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 929       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 930         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 931       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 932       for(; aSameEdge.More(); aSameEdge.Next()) {
 933         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 934           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 935         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 936           break;
 937
 938         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 939         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 940           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 941           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 942             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 943               break;
 944           }
 945           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 946             break;
 947         }
 948         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 949           if (alreadyThere.Add(aSameEdge.Value()))
 950             theList.Append(aSameEdge.Value());
 951           if (alreadyThere.Add(anAncestorsIter.Key()))
 952             theList.Append(anAncestorsIter.Key());
 953         }
 954       }
 955     } else { // ID is unique, just add this edge
 956       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 957     }
 958     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 959   }
 960   return theList.Extent();
 961 }
 962
 963 //=======================================================================
 964 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 965 {
 966   GeomShapePtr aShapePtr = shape();
 967   if (theShape->isNull() || !aShapePtr.get())
 968     return;
 969   TopoDS_Shape aShape = shape()->impl<TopoDS_Shape>();
 970   if (aShape.IsNull())
 971     return;
 972   std::string aName;
 973   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 974     TopoDS_Iterator itr(aShape);
 975     for (; itr.More(); itr.Next()) {
 976       builder(myFreePrimitiveTag)->Generated(itr.Value());
 977       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 978       aName = theName + "_" + aStr.ToCString();
 979       buildName(myFreePrimitiveTag, aName);
 980       ++myFreePrimitiveTag;
 981       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 982         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 983       {
 984         GeomShapePtr itrShape(new GeomAPI_Shape());
 985         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 986         loadFirstLevel(itrShape, theName);
 987       } else {
 988         GeomShapePtr itrShape(new GeomAPI_Shape());
 989         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 990         loadNextLevels(itrShape, theName);
 991       }
 992     }
 993   } else {
 994     GeomShapePtr itrShape(new GeomAPI_Shape());
 995     itrShape->setImpl(new TopoDS_Shape(aShape));
 996     loadNextLevels(itrShape, theName);
 997   }
 998   TopTools_ListOfShape   aList;
 999   if(findAmbiguities(aShape, aList)) {
1000     TopTools_ListIteratorOfListOfShape it(aList);
1001     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
1002       builder(myFreePrimitiveTag)->Generated(it.Value());
1003       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
1004       aName = theName + "_" + aStr.ToCString();
1005       buildName(myFreePrimitiveTag, aName);
1006     }
1007   }
1008 }
1009
1010 GeomShapePtr Model_BodyBuilder::shape()
1011 {
1012   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
1013   if (aData && aData->isValid()) {
1014     TDF_Label aShapeLab = aData->shapeLab();
1015     Handle(TDF_Reference) aRef;
1016     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
1017       aShapeLab = aRef->Get();
1018     }
1019     Handle(TNaming_NamedShape) aName;
1020     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
1021       TopoDS_Shape aShape = aName->Get();
1022       if (!aShape.IsNull()) {
1023         GeomShapePtr aRes(new GeomAPI_Shape);
1024         aRes->setImpl(new TopoDS_Shape(aShape));
1025         return aRes;
1026       }
1027     }
1028   }
1029   return GeomShapePtr();
1030 }