src/Model/Model_BodyBuilder.cpp

   1 // Copyright (C) 2014-2020  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 <Model_Data.h>
  23 #include <Model_Document.h>
  24 #include <ModelAPI_Session.h>
  25 #include <TNaming_Builder.hxx>
  26 #include <TNaming_NamedShape.hxx>
  27 #include <TNaming_Iterator.hxx>
  28 #include <TNaming_Tool.hxx>
  29 #include <TNaming_SameShapeIterator.hxx>
  30 #include <TDataStd_Name.hxx>
  31 #include <TDataStd_Integer.hxx>
  32 #include <TDataStd_ExtStringList.hxx>
  33 #include <TopoDS.hxx>
  34 #include <TopoDS_Face.hxx>
  35 #include <TDF_ChildIterator.hxx>
  36 #include <TDF_ChildIDIterator.hxx>
  37 #include <TDF_Reference.hxx>
  38 #include <TDF_Tool.hxx>
  39 #include <TopTools_MapOfShape.hxx>
  40 #include <TopExp_Explorer.hxx>
  41 #include <TopTools_ListOfShape.hxx>
  42 #include <TopTools_ListIteratorOfListOfShape.hxx>
  43 #include <TopTools_DataMapOfShapeListOfShape.hxx>
  44 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
  45 #include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
  46 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  47 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  48 #include <TopTools_IndexedMapOfShape.hxx>
  49 #include <TopTools_DataMapOfShapeShape.hxx>
  50 #include <TopExp.hxx>
  51 #include <BRepTools.hxx>
  52 #include <BRep_Tool.hxx>
  53 #include <BRepTools_History.hxx>
  54 #include <GeomAPI_Shape.h>
  55 #include <GeomAPI_ShapeExplorer.h>
  56 #include <GeomAlgoAPI_MakeShape.h>
  57 #include <GeomAlgoAPI_SortListOfShapes.h>
  58 #include <Config_PropManager.h>
  59 // DEB
  60 //#include <TCollection_AsciiString.hxx>
  61 //#define DEB_IMPORT 1
  62
  63 /// reference to the shape in external document: sting list attribute identifier
  64 static const Standard_GUID kEXTERNAL_SHAPE_REF("9aa5dd14-6d34-4a8d-8786-05842fd7bbbd");
  65
  66 static const int INVALID_TAG            = -1;
  67 static const int GENERATED_VERTICES_TAG = 1;
  68 static const int GENERATED_EDGES_TAG    = 2;
  69 static const int GENERATED_FACES_TAG    = 3;
  70 static const int MODIFIED_VERTICES_TAG  = 4;
  71 static const int MODIFIED_EDGES_TAG     = 5;
  72 static const int MODIFIED_FACES_TAG     = 6;
  73 static const int DELETED_TAG            = 7;
  74 static const int PRIMITIVES_START_TAG   = 11;
  75
  76 static int getGenerationTag(const TopoDS_Shape& theShape) {
  77   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  78   switch (aShapeType) {
  79     case TopAbs_VERTEX: return GENERATED_VERTICES_TAG;
  80     case TopAbs_EDGE:   return GENERATED_EDGES_TAG;
  81     case TopAbs_FACE:   return GENERATED_FACES_TAG;
  82     default: break; // [to avoid compilation warning]
  83   }
  84
  85   return INVALID_TAG;
  86 }
  87
  88 static int getModificationTag(const TopoDS_Shape& theShape) {
  89   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  90   switch (aShapeType) {
  91     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  92     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  93     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  94     default: break; // [to avoid compilation warning]
  95   }
  96
  97   return INVALID_TAG;
  98 }
  99
 100 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
 101                             const TopoDS_Shape& theOldShape,
 102                             const TopoDS_Shape& theNewShape)
 103 {
 104   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 105     aNamingIt.More();
 106     aNamingIt.Next())
 107   {
 108     if (aNamingIt.NewShape().IsSame(theNewShape)
 109       && aNamingIt.OldShape().IsSame(theOldShape))
 110     {
 111       return true;
 112     }
 113   }
 114
 115   return false;
 116 }
 117
 118 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 119 : ModelAPI_BodyBuilder(theOwner),
 120   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 121 {
 122 }
 123
 124 /// Checks that shape is presented in the tree with not-selection evolution
 125 /// In theOriginalLabel it returns label where NS of old sub-shape is stored
 126 static bool isShapeInTree(const TDF_Label& theAccess1, const TDF_Label& theAccess2,
 127   TopoDS_Shape theShape, TDF_Label& theOriginalLabel)
 128 {
 129   bool aResult = TNaming_Tool::HasLabel(theAccess1, theShape);
 130   if (aResult) { //check evolution and a label of this shape
 131     for(TNaming_SameShapeIterator aShapes(theShape, theAccess1); aShapes.More(); aShapes.Next())
 132     {
 133       static Handle(TNaming_NamedShape) aNS;
 134       if (aShapes.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 135         if (aNS->Evolution() != TNaming_SELECTED) {
 136           theOriginalLabel = aNS->Label();
 137           return true;
 138         }
 139       }
 140     }
 141   }
 142   if (!theAccess2.IsNull()) {
 143     static const TDF_Label anEmpty;
 144     return isShapeInTree(theAccess2, anEmpty, theShape, theOriginalLabel);
 145   }
 146   return false;
 147 }
 148
 149 /// Stores entry to the external label in the entries list at this label
 150 static void storeExternalReference(const TDF_Label& theExternal, const TDF_Label theThis)
 151 {
 152   // store information about the external document reference to restore old shape on open
 153   if (!theExternal.IsNull() && !theExternal.Root().IsEqual(theThis.Root())) {
 154     Handle(TDataStd_ExtStringList) anEntries;
 155     if (!theThis.FindAttribute(kEXTERNAL_SHAPE_REF, anEntries)) {
 156       anEntries = TDataStd_ExtStringList::Set(theThis, kEXTERNAL_SHAPE_REF);
 157     }
 158     TCollection_AsciiString anEntry;
 159     TDF_Tool::Entry(theExternal, anEntry);
 160     // check it already contains this entry
 161     TDataStd_ListOfExtendedString::Iterator anIter(anEntries->List());
 162     for(; anIter.More(); anIter.Next())
 163       if (anIter.Value() == anEntry)
 164         break;
 165     if (!anIter.More()) {
 166       anEntries->Append(anEntry);
 167     }
 168   }
 169 }
 170
 171 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 172                               const bool theIsStoreSameShapes)
 173 {
 174   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 175   if (aData) {
 176     TDF_Label aShapeLab = aData->shapeLab();
 177     // clean builders
 178     clean();
 179     // store the new shape as primitive
 180     TNaming_Builder aBuilder(aShapeLab);
 181     if (!theShape)
 182       return;  // bad shape
 183     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 184     if (aShape.IsNull())
 185       return;  // null shape inside
 186
 187     if(!theIsStoreSameShapes) {
 188       Handle(TNaming_NamedShape) aNS;
 189       if (TNaming_Tool::HasLabel(aShapeLab, aShape))
 190         aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 191       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 192       if(!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShape)) {
 193         // This shape is already in document, store reference instead of shape;
 194         const TDF_Label aFoundLabel = aNS->Label();
 195         TDF_Reference::Set(aShapeLab, aFoundLabel);
 196         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 197         return;
 198       }
 199     }
 200
 201     aBuilder.Generated(aShape);
 202     // register name
 203     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 204     if(!aBuilder.NamedShape()->IsEmpty()) {
 205       Handle(TDataStd_Name) anAttr;
 206       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 207         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 208         if(!aName.empty()) {
 209           std::shared_ptr<Model_Document> aDoc =
 210             std::dynamic_pointer_cast<Model_Document>(document());
 211           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 212         }
 213       }
 214     }
 215   }
 216 }
 217
 218 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 219   const GeomShapePtr& theToShape, const bool theIsCleanStored)
 220 {
 221   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 222   if (aData) {
 223     // clean builders
 224     if (theIsCleanStored)
 225       clean();
 226     TNaming_Builder* aBuilder = builder(0);
 227     if (!theFromShape || !theToShape)
 228       return;  // bad shape
 229     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 230     if (aShapeBasis.IsNull())
 231       return;  // null shape inside
 232     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 233     if (aShapeNew.IsNull())
 234       return;  // null shape inside
 235
 236     // There is no sense to write history if old shape does not exist in the document.
 237     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 238       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 239     TDF_Label anOriginalLabel;
 240     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeBasis, anOriginalLabel)) {
 241       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 242         aBuilder->Generated(aShapeNew);
 243       }
 244     } else {
 245       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 246         myBuilders.erase(0);
 247         aBuilder = builder(0);
 248       }
 249
 250       aBuilder->Generated(aShapeBasis, aShapeNew);
 251       // store information about the external document reference to restore old shape on open
 252       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 253     }
 254
 255     // register name
 256     if(!aBuilder->NamedShape()->IsEmpty()) {
 257       Handle(TDataStd_Name) anAttr;
 258       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 259         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 260         if(!aName.empty()) {
 261           std::shared_ptr<Model_Document> aDoc =
 262             std::dynamic_pointer_cast<Model_Document>(document());
 263           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 264         }
 265       }
 266     }
 267   }
 268 }
 269
 270 void Model_BodyBuilder::storeGenerated(const std::list<GeomShapePtr>& theFromShapes,
 271   const GeomShapePtr& theToShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 272 {
 273   bool aStored = false;
 274   std::list<GeomShapePtr>::const_iterator anOldIter = theFromShapes.cbegin();
 275   for (; anOldIter != theFromShapes.cend(); anOldIter++) {
 276     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire();
 277     if (!aStore) {
 278       ListOfShape aNews; // check this old really generates theToShape
 279       theMakeShape->generated(*anOldIter, aNews);
 280       ListOfShape::iterator aNewIter = aNews.begin();
 281       for (; aNewIter != aNews.end(); aNewIter++) {
 282         if (theToShape->isSame(*aNewIter))
 283           break;
 284       }
 285       aStore = aNewIter != aNews.end();
 286     }
 287     if (aStore) {
 288       storeGenerated(*anOldIter, theToShape, !aStored);
 289       TNaming_Builder* aBuilder = builder(0);
 290       aStored = !aBuilder->NamedShape()->IsEmpty();
 291     }
 292   }
 293   if (!aStored) { // store as PRIMITIVE, but clean in any way
 294     store(theToShape);
 295     return;
 296   }
 297 }
 298
 299 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 300 {
 301   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 302   if (aFind == myBuilders.end()) {
 303     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 304     myBuilders[theTag] = new TNaming_Builder(
 305       theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag));
 306     aFind = myBuilders.find(theTag);
 307   }
 308   return aFind->second;
 309 }
 310
 311 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 312                                       const GeomShapePtr& theNewShape,
 313                                       const bool theIsCleanStored)
 314 {
 315   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 316   if (aData) {
 317     // clean builders
 318     if (theIsCleanStored) clean();
 319     TNaming_Builder* aBuilder = builder(0);
 320     if (!theOldShape || !theNewShape)
 321       return;  // bad shape
 322     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 323     if (aShapeOld.IsNull())
 324       return;  // null shape inside
 325     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 326     if (aShapeNew.IsNull())
 327       return;  // null shape inside
 328
 329     // There is no sense to write history if old shape does not exist in the document.
 330     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 331       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 332     TDF_Label anOriginalLabel;
 333     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeOld, anOriginalLabel)) {
 334       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 335         aBuilder->Generated(aShapeNew);
 336       }
 337     } else {
 338       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 339         myBuilders.erase(0);
 340         aBuilder = builder(0);
 341       }
 342
 343       aBuilder->Modify(aShapeOld, aShapeNew);
 344       // store information about the external document reference to restore old shape on open
 345       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 346     }
 347
 348     if(!aBuilder->NamedShape()->IsEmpty()) {
 349       Handle(TDataStd_Name) anAttr;
 350       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(), anAttr)) {
 351         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 352         if(!aName.empty()) {
 353           std::shared_ptr<Model_Document> aDoc =
 354             std::dynamic_pointer_cast<Model_Document>(document());
 355           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 356         }
 357       }
 358     }
 359   }
 360 }
 361
 362 void Model_BodyBuilder::storeModified(const std::list<GeomShapePtr>& theOldShapes,
 363   const GeomShapePtr& theNewShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 364 {
 365   bool aStored = false;
 366   std::list<GeomShapePtr>::const_iterator anOldIter = theOldShapes.cbegin();
 367   for(; anOldIter != theOldShapes.cend(); anOldIter++) {
 368     // compounds may cause crash if call "modified"
 369     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire() ||
 370                 (*anOldIter)->isCompSolid();
 371     if (!aStore) {
 372       ListOfShape aNews; // check this old really modifies theNewShape
 373       theMakeShape->modified(*anOldIter, aNews);
 374       ListOfShape::iterator aNewIter = aNews.begin();
 375       for(; aNewIter != aNews.end(); aNewIter++) {
 376         if (theNewShape->isSame(*aNewIter))
 377           break;
 378       }
 379       aStore = aNewIter != aNews.end();
 380     }
 381     if (aStore) {
 382       storeModified(*anOldIter, theNewShape, !aStored);
 383       TNaming_Builder* aBuilder = builder(0);
 384       aStored = !aBuilder->NamedShape()->IsEmpty();
 385     }
 386   }
 387   if (!aStored) {
 388     // check the new shape is already in the tree, so, no need to store primitive, just reference
 389     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 390     if (aData.get()) {
 391       TDF_Label aShapeLab = aData->shapeLab();
 392       TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 393       Handle(TNaming_NamedShape) aNS;
 394       if (TNaming_Tool::HasLabel(aShapeLab, aShapeNew))
 395         aNS = TNaming_Tool::NamedShape(aShapeNew, aShapeLab);
 396       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 397       if (!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShapeNew)) {
 398         // This shape is already in document, store reference instead of shape;
 399         const TDF_Label aFoundLabel = aNS->Label();
 400         TDF_Reference::Set(aShapeLab, aFoundLabel);
 401         myBuilders.erase(0);
 402         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 403         return;
 404       }
 405     }
 406     store(theNewShape); // store as PRIMITIVE, but clean in any way
 407     return;
 408   }
 409 }
 410
 411 void Model_BodyBuilder::clean()
 412 {
 413   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 414   if (aLab.IsNull())
 415     return;
 416   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 417   for(; aBuilder != myBuilders.end(); aBuilder++) {
 418     Handle(TNaming_NamedShape) aNS = aBuilder->second->NamedShape();
 419     delete aBuilder->second;
 420     if (!aNS.IsNull() && !aNS->Label().IsNull())
 421       aNS->Label().ForgetAttribute(TNaming_NamedShape::GetID());
 422   }
 423   myBuilders.clear();
 424   myPrimitivesNamesIndexMap.clear();
 425   // remove the old reference (if any)
 426   aLab.ForgetAttribute(TDF_Reference::GetID());
 427   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 428   TDF_ChildIDIterator anEntriesIter(aLab, kEXTERNAL_SHAPE_REF, true);
 429   for(; anEntriesIter.More(); anEntriesIter.Next()) {
 430     anEntriesIter.Value()->Label().ForgetAttribute(kEXTERNAL_SHAPE_REF);
 431   }
 432 }
 433
 434 void Model_BodyBuilder::cleanCash()
 435 {
 436   myPrimitivesNamesIndexMap.clear();
 437 }
 438
 439 Model_BodyBuilder::~Model_BodyBuilder()
 440 {
 441   clean();
 442 }
 443
 444 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 445 {
 446   std::string aName = theName;
 447   std::string aPrefix = "";
 448   switch (theTag) {
 449     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 450     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 451     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 452     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 453     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 454     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 455   }
 456   aName.insert(0, aPrefix);
 457
 458   TDataStd_Name::Set(builder(theTag)->NamedShape()->Label(), aName.c_str());
 459 }
 460 bool Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 461                                   const std::string& theName,
 462                                   const bool theCheckIsInResult)
 463 {
 464   GeomShapePtr aResultShape = shape();
 465   if (theCheckIsInResult) {
 466     bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 467     if (aNewShapeIsNotInResultShape) {
 468       return false;
 469     }
 470   }
 471
 472   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 473   builder(myFreePrimitiveTag)->Generated(aShape);
 474   if (!theName.empty()) {
 475     std::string aName = theName;
 476     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 477       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 478       aName += "_" + std::to_string(++(anIndexTags.index));
 479       anIndexTags.tags.push_back(myFreePrimitiveTag);
 480       if (anIndexTags.index == 2) {
 481         buildName(anIndexTags.tags.front(), theName + "_1");
 482       }
 483     }
 484     else {
 485       IndexTags anIndexTags;
 486       anIndexTags.index = 1;
 487       anIndexTags.tags.push_back(myFreePrimitiveTag);
 488       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 489     }
 490
 491     buildName(myFreePrimitiveTag, aName);
 492   }
 493   ++myFreePrimitiveTag;
 494   return true;
 495 }
 496
 497 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 498                                   const GeomShapePtr& theNewShape,
 499                                   const std::string& theName)
 500 {
 501   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 502   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 503   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 504   int aTag;
 505   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 506     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 507     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 508     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 509     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 510       builder(aTag)->Generated(anOldShape, anExp.Current());
 511     }
 512     buildName(aTag, theName);
 513   } else {
 514     aTag = getGenerationTag(aNewShape);
 515     if (aTag == INVALID_TAG) return;
 516     builder(aTag)->Generated(anOldShape, aNewShape);
 517     buildName(aTag, theName);
 518   }
 519 }
 520
 521 void Model_BodyBuilder::modified(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   int aTag = getModificationTag(aNewShape);
 528   if (aTag == INVALID_TAG) return;
 529   builder(aTag)->Modify(anOldShape, aNewShape);
 530   buildName(aTag, theName);
 531 }
 532
 533 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 534                                           const GeomShapePtr& theOldShape,
 535                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 536                                           const GeomShapePtr& theShapesToExclude)
 537 {
 538   TopTools_MapOfShape anAlreadyProcessedShapes;
 539   GeomShapePtr aResultShape = shape();
 540   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 541        anExp.more();
 542        anExp.next())
 543   {
 544     GeomShapePtr anOldSubShape = anExp.current();
 545     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 546     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 547         || !theAlgo->isDeleted(anOldSubShape)
 548         || aResultShape->isSubShape(anOldSubShape, false)
 549         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 550     {
 551       continue;
 552     }
 553
 554     ListOfShape aNewShapes;
 555     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 556       theAlgo->modified(anOldSubShape, aNewShapes);
 557     }
 558
 559     if (aNewShapes.size() == 0
 560         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 561       builder(DELETED_TAG)->Delete(anOldSubShape_);
 562     }
 563   }
 564 }
 565
 566 // Keep only the shapes with minimal shape type
 567 static void keepTopLevelShapes(ListOfShape& theShapes,
 568                                const TopoDS_Shape& theRoot,
 569                                const GeomShapePtr& theResultShape = GeomShapePtr())
 570 {
 571   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 572   ListOfShape::iterator anIt = theShapes.begin();
 573   while (anIt != theShapes.end()) {
 574     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 575     bool aSkip = aNewShape.IsNull() ||
 576       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 577     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 578         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 579       ListOfShape::iterator aRemoveIt = anIt++;
 580       theShapes.erase(aRemoveIt);
 581     } else {
 582       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 583       if (aType < aKeepShapeType) {
 584         // found a shape with lesser shape type => remove all previous shapes
 585         aKeepShapeType = aType;
 586         theShapes.erase(theShapes.begin(), anIt);
 587         ++anIt;
 588       } else if (aType > aKeepShapeType) {
 589         // shapes with greater shape type should be removed from the list
 590         ListOfShape::iterator aRemoveIt = anIt++;
 591         theShapes.erase(aRemoveIt);
 592       } else
 593         ++anIt;
 594     }
 595   }
 596 }
 597
 598 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 599                                            const GeomShapePtr& theOldShape,
 600                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 601                                            const std::string& theName)
 602 {
 603   GeomShapePtr aResultShape = shape();
 604   GeomShapePtr aShapeToExplore = theOldShape;
 605   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 606     // use optimized set of old shapes for this
 607     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 608                                                       aResultShape,
 609                                                       theShapeTypeToExplore);
 610     if (aCompound.get()) aShapeToExplore = aCompound;
 611   }
 612
 613   TopTools_MapOfShape anAlreadyProcessedShapes;
 614   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 615   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 616        anOldShapeExp.more();
 617        anOldShapeExp.next())
 618   {
 619     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 620     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 621
 622     // There is no sense to write history if shape already processed
 623     // or old shape does not exist in the document.
 624     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 625     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 626       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 627     TDF_Label anOriginalLabel;
 628     bool anOldSubShapeNotInTree =
 629       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 630     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 631       continue;
 632     }
 633
 634     // Get new shapes.
 635     ListOfShape aNewShapes;
 636     theAlgo->modified(anOldSubShape, aNewShapes);
 637
 638     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 639          aNewShapesIt != aNewShapes.cend();
 640          ++aNewShapesIt)
 641     {
 642       GeomShapePtr aNewShape = *aNewShapesIt;
 643       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 644       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 645
 646       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 647       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 648       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape)
 649         continue;
 650
 651       if (aResultShape->isSame(aNewShape))
 652         continue; // it is stored on the root level (2241 - history propagation issue)
 653
 654       int aTag = isGenerated ? getGenerationTag(aNewShape_) : getModificationTag(aNewShape_);
 655       TNaming_Builder*aBuilder = builder(aTag);
 656       if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_))
 657         continue; // new shape was already stored.
 658
 659       buildName(aTag, theName);
 660       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 661                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 662       // store information about the external document reference to restore old shape on open
 663       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 664     }
 665   }
 666 }
 667
 668 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 669                                             const GeomShapePtr& theOldShape,
 670                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 671                                             const std::string& theName,
 672                                             const bool theSaveOldIfNotInTree)
 673 {
 674   GeomShapePtr aResultShape = shape();
 675   TopTools_MapOfShape anAlreadyProcessedShapes;
 676   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 677   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 678        anOldShapeExp.more();
 679        anOldShapeExp.next())
 680   {
 681     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 682     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 683
 684     // There is no sense to write history if shape already processed
 685     // or old shape does not exist in the document.
 686     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 687     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 688       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 689     TDF_Label anOriginalLabel;
 690     bool anOldSubShapeNotInTree =
 691       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 692     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 693       if (theSaveOldIfNotInTree) {
 694         std::string aSelectionName = theName + "Selected";
 695         generated(anOldSubShape, aSelectionName, false);
 696       } else
 697         continue;
 698     }
 699
 700     // Get new shapes.
 701     ListOfShape aNewShapes;
 702     theAlgo->generated(anOldSubShape, aNewShapes);
 703
 704     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 705
 706     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 707          aNewShapesIt != aNewShapes.cend();
 708          ++aNewShapesIt)
 709     {
 710       GeomShapePtr aNewShape = *aNewShapesIt;
 711       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 712
 713       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 714       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 715       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape) {
 716         continue;
 717       }
 718
 719       if (aResultShape->isSame(aNewShape))
 720         continue; // it is stored on the root level
 721
 722       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 723       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 724         // TODO: This is a workaround. New shape should be only edge or face.
 725         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 726                                                                             : TopAbs_FACE;
 727         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 728         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 729           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 730           // store information about the external document reference to restore old shape on open
 731           storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 732         }
 733         buildName(aTag, theName);
 734       } else {
 735         int aTag = getGenerationTag(aNewShape_);
 736         if (aTag == INVALID_TAG) return;
 737         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 738         buildName(aTag, theName);
 739         // store information about the external document reference to restore old shape on open
 740         storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 741       }
 742     }
 743   }
 744 }
 745
 746 // LCOV_EXCL_START
 747 //=======================================================================
 748 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 749   const TopAbs_ShapeEnum        theGeneratedFrom,
 750   TopTools_DataMapOfShapeShape& theDangles)
 751 {
 752   theDangles.Clear();
 753   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 754   TopAbs_ShapeEnum GeneratedTo;
 755   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 756   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 757   else return Standard_False;
 758   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 759   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 760     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 761     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 762     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 763   }
 764   return theDangles.Extent();
 765 }
 766
 767 //=======================================================================
 768 void loadGeneratedDangleShapes(
 769   const TopoDS_Shape&      theShapeIn,
 770   const TopAbs_ShapeEnum   theGeneratedFrom,
 771   TNaming_Builder *        theBuilder)
 772 {
 773   TopTools_DataMapOfShapeShape dangles;
 774   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 775   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 776   for (; itr.More(); itr.Next())
 777     theBuilder->Generated(itr.Key(), itr.Value());
 778 }
 779 // LCOV_EXCL_STOP
 780
 781 //=======================================================================
 782 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 783                                        const std::string& theName)
 784 {
 785   if(theShape->isNull()) return;
 786   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 787   std::string aName;
 788   if (aShape.ShapeType() == TopAbs_SOLID) {
 789     TopExp_Explorer expl(aShape, TopAbs_FACE);
 790     for (; expl.More(); expl.Next()) {
 791       builder(myFreePrimitiveTag)->Generated(expl.Current());
 792       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 793       aName = theName + "_" + aStr.ToCString();
 794       buildName(myFreePrimitiveTag, aName);
 795       ++myFreePrimitiveTag;
 796     }
 797   }
 798   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 799     // load faces and all the free edges
 800     TopTools_IndexedMapOfShape Faces;
 801     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 802     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 803       TopExp_Explorer expl(aShape, TopAbs_FACE);
 804       for (; expl.More(); expl.Next()) {
 805         builder(myFreePrimitiveTag)->Generated(expl.Current());
 806         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 807         aName = theName + "_" + aStr.ToCString();
 808         buildName(myFreePrimitiveTag, aName);
 809         ++myFreePrimitiveTag;
 810       }
 811     }
 812     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 813     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 814     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 815     {
 816       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 817       if (aLL.Extent() < 2) {
 818         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 819           continue;
 820         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 821         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 822         aName = theName + "_" + aStr.ToCString();
 823         buildName(myFreePrimitiveTag, aName);
 824         ++myFreePrimitiveTag;
 825       } else {
 826         TopTools_ListIteratorOfListOfShape anIter(aLL);
 827         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 828         anIter.Next();
 829         if(aFace.IsEqual(anIter.Value())) {
 830           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 831           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 832           aName = theName + "_" + aStr.ToCString();
 833           buildName(myFreePrimitiveTag, aName);
 834           ++myFreePrimitiveTag;
 835         }
 836       }
 837     }
 838   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 839     TopTools_IndexedMapOfShape Edges;
 840     BRepTools::Map3DEdges(aShape, Edges);
 841     if (Edges.Extent() == 1) {
 842       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 843       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 844       for (; expl.More(); expl.Next()) {
 845         builder(myFreePrimitiveTag)->Generated(expl.Current());
 846         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 847         aName = theName + "_" + aStr.ToCString();
 848         buildName(myFreePrimitiveTag, aName);
 849         ++myFreePrimitiveTag;
 850       }
 851     } else {
 852       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 853       for (; expl.More(); expl.Next()) {
 854         builder(myFreePrimitiveTag)->Generated(expl.Current());
 855         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 856         aName = theName + "_" + aStr.ToCString();
 857         buildName(myFreePrimitiveTag, aName);
 858         ++myFreePrimitiveTag;
 859       }
 860       // and load generated vertices.
 861       TopTools_DataMapOfShapeShape generated;
 862       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 863       {
 864         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 865         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 866       }
 867     }
 868   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 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   }
 878 }
 879
 880 //=======================================================================
 881 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 882   TopTools_ListOfShape&   theList)
 883 {
 884   theList.Clear();
 885   // edges -> ancestor faces list
 886   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 887   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 888   // keeps the shapes which are already in the resulting list
 889   TopTools_MapOfShape alreadyThere;
 890   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 891   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 892
 893   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 894   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 895     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 896     if (ancestors.Extent() < 2)
 897       continue;
 898     Standard_Integer anID = 0;
 899     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 900       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 901     }
 902     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 903       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 904         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 905       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 906       for(; aSameEdge.More(); aSameEdge.Next()) {
 907         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 908           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 909         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 910           break;
 911
 912         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 913         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 914           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 915           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 916             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 917               break;
 918           }
 919           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 920             break;
 921         }
 922         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 923           if (alreadyThere.Add(aSameEdge.Value()))
 924             theList.Append(aSameEdge.Value());
 925           if (alreadyThere.Add(anAncestorsIter.Key()))
 926             theList.Append(anAncestorsIter.Key());
 927         }
 928       }
 929     } else { // ID is unique, just add this edge
 930       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 931     }
 932     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 933   }
 934   return theList.Extent();
 935 }
 936
 937 //=======================================================================
 938 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 939 {
 940   GeomShapePtr aShapePtr = shape();
 941   if (theShape->isNull() || !aShapePtr.get())
 942     return;
 943   TopoDS_Shape aShape = shape()->impl<TopoDS_Shape>();
 944   if (aShape.IsNull())
 945     return;
 946   std::string aName;
 947   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 948     TopoDS_Iterator itr(aShape);
 949     for (; itr.More(); itr.Next()) {
 950       builder(myFreePrimitiveTag)->Generated(itr.Value());
 951       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 952       aName = theName + "_" + aStr.ToCString();
 953       buildName(myFreePrimitiveTag, aName);
 954       ++myFreePrimitiveTag;
 955       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 956         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 957       {
 958         GeomShapePtr itrShape(new GeomAPI_Shape());
 959         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 960         loadFirstLevel(itrShape, theName);
 961       } else {
 962         GeomShapePtr itrShape(new GeomAPI_Shape());
 963         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 964         loadNextLevels(itrShape, theName);
 965       }
 966     }
 967   } else {
 968     GeomShapePtr itrShape(new GeomAPI_Shape());
 969     itrShape->setImpl(new TopoDS_Shape(aShape));
 970     loadNextLevels(itrShape, theName);
 971   }
 972   TopTools_ListOfShape   aList;
 973   if(findAmbiguities(aShape, aList)) {
 974     TopTools_ListIteratorOfListOfShape it(aList);
 975     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 976       builder(myFreePrimitiveTag)->Generated(it.Value());
 977       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 978       aName = theName + "_" + aStr.ToCString();
 979       buildName(myFreePrimitiveTag, aName);
 980     }
 981   }
 982 }
 983
 984 GeomShapePtr Model_BodyBuilder::shape()
 985 {
 986   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 987   if (aData && aData->isValid()) {
 988     TDF_Label aShapeLab = aData->shapeLab();
 989     Handle(TDF_Reference) aRef;
 990     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 991       aShapeLab = aRef->Get();
 992     }
 993     Handle(TNaming_NamedShape) aName;
 994     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
 995       TopoDS_Shape aShape = aName->Get();
 996       if (!aShape.IsNull()) {
 997         GeomShapePtr aRes(new GeomAPI_Shape);
 998         aRes->setImpl(new TopoDS_Shape(aShape));
 999         return aRes;
1000       }
1001     }
1002   }
1003   return GeomShapePtr();
1004 }