src/Model/Model_BodyBuilder.cpp

   1 // Copyright (C) 2014-2019  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   }
  83
  84   return INVALID_TAG;
  85 }
  86
  87 static int getModificationTag(const TopoDS_Shape& theShape) {
  88   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  89   switch (aShapeType) {
  90     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  91     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  92     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  93   }
  94
  95   return INVALID_TAG;
  96 }
  97
  98 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
  99                             const TopoDS_Shape& theOldShape,
 100                             const TopoDS_Shape& theNewShape)
 101 {
 102   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 103     aNamingIt.More();
 104     aNamingIt.Next())
 105   {
 106     if (aNamingIt.NewShape().IsSame(theNewShape)
 107       && aNamingIt.OldShape().IsSame(theOldShape))
 108     {
 109       return true;
 110     }
 111   }
 112
 113   return false;
 114 }
 115
 116 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 117 : ModelAPI_BodyBuilder(theOwner),
 118   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 119 {
 120 }
 121
 122 /// Checks that shape is presented in the tree with not-selection evolution
 123 /// In theOriginalLabel it returns label where NS of old sub-shape is stored
 124 static bool isShapeInTree(const TDF_Label& theAccess1, const TDF_Label& theAccess2,
 125   TopoDS_Shape theShape, TDF_Label& theOriginalLabel)
 126 {
 127   bool aResult = TNaming_Tool::HasLabel(theAccess1, theShape);
 128   if (aResult) { //check evolution and a label of this shape
 129     for(TNaming_SameShapeIterator aShapes(theShape, theAccess1); aShapes.More(); aShapes.Next())
 130     {
 131       static Handle(TNaming_NamedShape) aNS;
 132       if (aShapes.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 133         if (aNS->Evolution() != TNaming_SELECTED) {
 134           theOriginalLabel = aNS->Label();
 135           return true;
 136         }
 137       }
 138     }
 139   }
 140   if (!theAccess2.IsNull()) {
 141     static const TDF_Label anEmpty;
 142     return isShapeInTree(theAccess2, anEmpty, theShape, theOriginalLabel);
 143   }
 144   return false;
 145 }
 146
 147 /// Stores entry to the external label in the entries list at this label
 148 static void storeExternalReference(const TDF_Label& theExternal, const TDF_Label theThis)
 149 {
 150   // store information about the external document reference to restore old shape on open
 151   if (!theExternal.IsNull() && !theExternal.Root().IsEqual(theThis.Root())) {
 152     Handle(TDataStd_ExtStringList) anEntries;
 153     if (!theThis.FindAttribute(kEXTERNAL_SHAPE_REF, anEntries)) {
 154       anEntries = TDataStd_ExtStringList::Set(theThis, kEXTERNAL_SHAPE_REF);
 155     }
 156     TCollection_AsciiString anEntry;
 157     TDF_Tool::Entry(theExternal, anEntry);
 158     // check it already contains this entry
 159     TDataStd_ListOfExtendedString::Iterator anIter(anEntries->List());
 160     for(; anIter.More(); anIter.Next())
 161       if (anIter.Value() == anEntry)
 162         break;
 163     if (!anIter.More()) {
 164       anEntries->Append(anEntry);
 165     }
 166   }
 167 }
 168
 169 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 170                               const bool theIsStoreSameShapes)
 171 {
 172   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 173   if (aData) {
 174     TDF_Label aShapeLab = aData->shapeLab();
 175     // clean builders
 176     clean();
 177     // store the new shape as primitive
 178     TNaming_Builder aBuilder(aShapeLab);
 179     if (!theShape)
 180       return;  // bad shape
 181     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 182     if (aShape.IsNull())
 183       return;  // null shape inside
 184
 185     if(!theIsStoreSameShapes) {
 186       Handle(TNaming_NamedShape) aNS;
 187       if (TNaming_Tool::HasLabel(aShapeLab, aShape))
 188         aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 189       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 190       if(!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShape)) {
 191         // This shape is already in document, store reference instead of shape;
 192         const TDF_Label aFoundLabel = aNS->Label();
 193         TDF_Reference::Set(aShapeLab, aFoundLabel);
 194         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 195         return;
 196       }
 197     }
 198
 199     aBuilder.Generated(aShape);
 200     // register name
 201     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 202     if(!aBuilder.NamedShape()->IsEmpty()) {
 203       Handle(TDataStd_Name) anAttr;
 204       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 205         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 206         if(!aName.empty()) {
 207           std::shared_ptr<Model_Document> aDoc =
 208             std::dynamic_pointer_cast<Model_Document>(document());
 209           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 210         }
 211       }
 212     }
 213   }
 214 }
 215
 216 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 217   const GeomShapePtr& theToShape, const bool theIsCleanStored)
 218 {
 219   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 220   if (aData) {
 221     TDF_Label aShapeLab = aData->shapeLab();
 222     // clean builders
 223     if (theIsCleanStored)
 224       clean();
 225     TNaming_Builder* aBuilder = builder(0);
 226     if (!theFromShape || !theToShape)
 227       return;  // bad shape
 228     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 229     if (aShapeBasis.IsNull())
 230       return;  // null shape inside
 231     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 232     if (aShapeNew.IsNull())
 233       return;  // null shape inside
 234
 235     // There is no sense to write history if old shape does not exist in the document.
 236     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 237       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 238     TDF_Label anOriginalLabel;
 239     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeBasis, anOriginalLabel)) {
 240       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 241         aBuilder->Generated(aShapeNew);
 242       }
 243     } else {
 244       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 245         myBuilders.erase(0);
 246         aBuilder = builder(0);
 247       }
 248
 249       aBuilder->Generated(aShapeBasis, aShapeNew);
 250       // store information about the external document reference to restore old shape on open
 251       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 252     }
 253
 254     // register name
 255     if(!aBuilder->NamedShape()->IsEmpty()) {
 256       Handle(TDataStd_Name) anAttr;
 257       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 258         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 259         if(!aName.empty()) {
 260           std::shared_ptr<Model_Document> aDoc =
 261             std::dynamic_pointer_cast<Model_Document>(document());
 262           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 263         }
 264       }
 265     }
 266   }
 267 }
 268
 269 void Model_BodyBuilder::storeGenerated(const std::list<GeomShapePtr>& theFromShapes,
 270   const GeomShapePtr& theToShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 271 {
 272   bool aStored = false;
 273   std::list<GeomShapePtr>::const_iterator anOldIter = theFromShapes.cbegin();
 274   for (; anOldIter != theFromShapes.cend(); anOldIter++) {
 275     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire();
 276     if (!aStore) {
 277       ListOfShape aNews; // check this old really generates theToShape
 278       theMakeShape->generated(*anOldIter, aNews);
 279       ListOfShape::iterator aNewIter = aNews.begin();
 280       for (; aNewIter != aNews.end(); aNewIter++) {
 281         if (theToShape->isSame(*aNewIter))
 282           break;
 283       }
 284       aStore = aNewIter != aNews.end();
 285     }
 286     if (aStore) {
 287       storeGenerated(*anOldIter, theToShape, !aStored);
 288       TNaming_Builder* aBuilder = builder(0);
 289       aStored = !aBuilder->NamedShape()->IsEmpty();
 290     }
 291   }
 292   if (!aStored) { // store as PRIMITIVE, but clean in any way
 293     store(theToShape);
 294     return;
 295   }
 296 }
 297
 298 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 299 {
 300   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 301   if (aFind == myBuilders.end()) {
 302     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 303     myBuilders[theTag] = new TNaming_Builder(
 304       theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag));
 305     aFind = myBuilders.find(theTag);
 306   }
 307   return aFind->second;
 308 }
 309
 310 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 311                                       const GeomShapePtr& theNewShape,
 312                                       const bool theIsCleanStored)
 313 {
 314   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 315   if (aData) {
 316     // clean builders
 317     if (theIsCleanStored) clean();
 318     TNaming_Builder* aBuilder = builder(0);
 319     if (!theOldShape || !theNewShape)
 320       return;  // bad shape
 321     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 322     if (aShapeOld.IsNull())
 323       return;  // null shape inside
 324     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 325     if (aShapeNew.IsNull())
 326       return;  // null shape inside
 327
 328     // There is no sense to write history if old shape does not exist in the document.
 329     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 330       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 331     TDF_Label anOriginalLabel;
 332     if (!isShapeInTree(aData->shapeLab(), anAccess2, aShapeOld, anOriginalLabel)) {
 333       if (aBuilder->NamedShape()->Get().IsNull()) { // store as primitive if alone anyway
 334         aBuilder->Generated(aShapeNew);
 335       }
 336     } else {
 337       if (aBuilder->NamedShape()->Evolution() == TNaming_PRIMITIVE) { // erase primitive before
 338         myBuilders.erase(0);
 339         aBuilder = builder(0);
 340       }
 341
 342       aBuilder->Modify(aShapeOld, aShapeNew);
 343       // store information about the external document reference to restore old shape on open
 344       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 345     }
 346
 347     if(!aBuilder->NamedShape()->IsEmpty()) {
 348       Handle(TDataStd_Name) anAttr;
 349       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(), anAttr)) {
 350         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 351         if(!aName.empty()) {
 352           std::shared_ptr<Model_Document> aDoc =
 353             std::dynamic_pointer_cast<Model_Document>(document());
 354           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 355         }
 356       }
 357     }
 358   }
 359 }
 360
 361 void Model_BodyBuilder::storeModified(const std::list<GeomShapePtr>& theOldShapes,
 362   const GeomShapePtr& theNewShape, const std::shared_ptr<GeomAlgoAPI_MakeShape> theMakeShape)
 363 {
 364   bool aStored = false;
 365   std::list<GeomShapePtr>::const_iterator anOldIter = theOldShapes.cbegin();
 366   for(; anOldIter != theOldShapes.cend(); anOldIter++) {
 367     // compounds may cause crash if call "modified"
 368     bool aStore = (*anOldIter)->isCompound() || (*anOldIter)->isShell() || (*anOldIter)->isWire();
 369     if (!aStore) {
 370       ListOfShape aNews; // check this old really modifies theNewShape
 371       theMakeShape->modified(*anOldIter, aNews);
 372       ListOfShape::iterator aNewIter = aNews.begin();
 373       for(; aNewIter != aNews.end(); aNewIter++) {
 374         if (theNewShape->isSame(*aNewIter))
 375           break;
 376       }
 377       aStore = aNewIter != aNews.end();
 378     }
 379     if (aStore) {
 380       storeModified(*anOldIter, theNewShape, !aStored);
 381       TNaming_Builder* aBuilder = builder(0);
 382       aStored = !aBuilder->NamedShape()->IsEmpty();
 383     }
 384   }
 385   if (!aStored) {
 386     // check the new shape is already in the tree, so, no need to store primitive, just reference
 387     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 388     if (aData.get()) {
 389       TDF_Label aShapeLab = aData->shapeLab();
 390       TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 391       Handle(TNaming_NamedShape) aNS;
 392       if (TNaming_Tool::HasLabel(aShapeLab, aShapeNew))
 393         aNS = TNaming_Tool::NamedShape(aShapeNew, aShapeLab);
 394       // the last condition is for the issue 2751 : existing shape may be found in compound-NS
 395       if (!aNS.IsNull() && !aNS->IsEmpty() && aNS->Get().IsSame(aShapeNew)) {
 396         // This shape is already in document, store reference instead of shape;
 397         const TDF_Label aFoundLabel = aNS->Label();
 398         TDF_Reference::Set(aShapeLab, aFoundLabel);
 399         myBuilders.erase(0);
 400         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 401         return;
 402       }
 403     }
 404     store(theNewShape); // store as PRIMITIVE, but clean in any way
 405     return;
 406   }
 407 }
 408
 409 void Model_BodyBuilder::clean()
 410 {
 411   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 412   if (aLab.IsNull())
 413     return;
 414   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 415   for(; aBuilder != myBuilders.end(); aBuilder++) {
 416     Handle(TNaming_NamedShape) aNS = aBuilder->second->NamedShape();
 417     delete aBuilder->second;
 418     if (!aNS.IsNull() && !aNS->Label().IsNull())
 419       aNS->Label().ForgetAttribute(TNaming_NamedShape::GetID());
 420   }
 421   myBuilders.clear();
 422   myPrimitivesNamesIndexMap.clear();
 423   // remove the old reference (if any)
 424   aLab.ForgetAttribute(TDF_Reference::GetID());
 425   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 426   TDF_ChildIDIterator anEntriesIter(aLab, kEXTERNAL_SHAPE_REF, true);
 427   for(; anEntriesIter.More(); anEntriesIter.Next()) {
 428     anEntriesIter.Value()->Label().ForgetAttribute(kEXTERNAL_SHAPE_REF);
 429   }
 430 }
 431
 432 void Model_BodyBuilder::cleanCash()
 433 {
 434   myPrimitivesNamesIndexMap.clear();
 435 }
 436
 437 Model_BodyBuilder::~Model_BodyBuilder()
 438 {
 439   clean();
 440 }
 441
 442 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 443 {
 444   std::string aName = theName;
 445   std::string aPrefix = "";
 446   switch (theTag) {
 447     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 448     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 449     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 450     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 451     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 452     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 453   }
 454   aName.insert(0, aPrefix);
 455
 456   TDataStd_Name::Set(builder(theTag)->NamedShape()->Label(), aName.c_str());
 457 }
 458 bool Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 459                                   const std::string& theName,
 460                                   const bool theCheckIsInResult)
 461 {
 462   GeomShapePtr aResultShape = shape();
 463   if (theCheckIsInResult) {
 464     bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 465     if (aNewShapeIsNotInResultShape) {
 466       return false;
 467     }
 468   }
 469
 470   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 471   builder(myFreePrimitiveTag)->Generated(aShape);
 472   if (!theName.empty()) {
 473     std::string aName = theName;
 474     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 475       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 476       aName += "_" + std::to_string(++(anIndexTags.index));
 477       anIndexTags.tags.push_back(myFreePrimitiveTag);
 478       if (anIndexTags.index == 2) {
 479         buildName(anIndexTags.tags.front(), theName + "_1");
 480       }
 481     }
 482     else {
 483       IndexTags anIndexTags;
 484       anIndexTags.index = 1;
 485       anIndexTags.tags.push_back(myFreePrimitiveTag);
 486       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 487     }
 488
 489     buildName(myFreePrimitiveTag, aName);
 490   }
 491   ++myFreePrimitiveTag;
 492   return true;
 493 }
 494
 495 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 496                                   const GeomShapePtr& theNewShape,
 497                                   const std::string& theName)
 498 {
 499   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 500   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 501   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 502   int aTag;
 503   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 504     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 505     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 506     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 507     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 508       builder(aTag)->Generated(anOldShape, anExp.Current());
 509     }
 510     buildName(aTag, theName);
 511   } else {
 512     aTag = getGenerationTag(aNewShape);
 513     if (aTag == INVALID_TAG) return;
 514     builder(aTag)->Generated(anOldShape, aNewShape);
 515     buildName(aTag, theName);
 516   }
 517 }
 518
 519 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 520                                  const GeomShapePtr& theNewShape,
 521                                  const std::string& theName)
 522 {
 523   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 524   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 525   int aTag = getModificationTag(aNewShape);
 526   if (aTag == INVALID_TAG) return;
 527   builder(aTag)->Modify(anOldShape, aNewShape);
 528   buildName(aTag, theName);
 529 }
 530
 531 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 532                                           const GeomShapePtr& theOldShape,
 533                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 534                                           const GeomShapePtr& theShapesToExclude)
 535 {
 536   TopTools_MapOfShape anAlreadyProcessedShapes;
 537   GeomShapePtr aResultShape = shape();
 538   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 539        anExp.more();
 540        anExp.next())
 541   {
 542     GeomShapePtr anOldSubShape = anExp.current();
 543     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 544     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 545         || !theAlgo->isDeleted(anOldSubShape)
 546         || aResultShape->isSubShape(anOldSubShape, false)
 547         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 548     {
 549       continue;
 550     }
 551
 552     ListOfShape aNewShapes;
 553     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 554       theAlgo->modified(anOldSubShape, aNewShapes);
 555     }
 556
 557     if (aNewShapes.size() == 0
 558         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 559       builder(DELETED_TAG)->Delete(anOldSubShape_);
 560     }
 561   }
 562 }
 563
 564 // Keep only the shapes with minimal shape type
 565 static void keepTopLevelShapes(ListOfShape& theShapes,
 566                                const TopoDS_Shape& theRoot,
 567                                const GeomShapePtr& theResultShape = GeomShapePtr())
 568 {
 569   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 570   ListOfShape::iterator anIt = theShapes.begin();
 571   while (anIt != theShapes.end()) {
 572     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 573     bool aSkip = aNewShape.IsNull() ||
 574       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 575     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 576         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 577       ListOfShape::iterator aRemoveIt = anIt++;
 578       theShapes.erase(aRemoveIt);
 579     } else {
 580       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 581       if (aType < aKeepShapeType) {
 582         // found a shape with lesser shape type => remove all previous shapes
 583         aKeepShapeType = aType;
 584         theShapes.erase(theShapes.begin(), anIt);
 585         ++anIt;
 586       } else if (aType > aKeepShapeType) {
 587         // shapes with greater shape type should be removed from the list
 588         ListOfShape::iterator aRemoveIt = anIt++;
 589         theShapes.erase(aRemoveIt);
 590       } else
 591         ++anIt;
 592     }
 593   }
 594 }
 595
 596 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 597                                            const GeomShapePtr& theOldShape,
 598                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 599                                            const std::string& theName)
 600 {
 601   GeomShapePtr aResultShape = shape();
 602   GeomShapePtr aShapeToExplore = theOldShape;
 603   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 604     // use optimized set of old shapes for this
 605     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 606                                                       aResultShape,
 607                                                       theShapeTypeToExplore);
 608     if (aCompound.get()) aShapeToExplore = aCompound;
 609   }
 610
 611   TopTools_MapOfShape anAlreadyProcessedShapes;
 612   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 613   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 614        anOldShapeExp.more();
 615        anOldShapeExp.next())
 616   {
 617     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 618     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 619
 620     // There is no sense to write history if shape already processed
 621     // or old shape does not exist in the document.
 622     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 623     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 624       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 625     TDF_Label anOriginalLabel;
 626     bool anOldSubShapeNotInTree =
 627       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 628     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 629       continue;
 630     }
 631
 632     // Get new shapes.
 633     ListOfShape aNewShapes;
 634     theAlgo->modified(anOldSubShape, aNewShapes);
 635
 636     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 637          aNewShapesIt != aNewShapes.cend();
 638          ++aNewShapesIt)
 639     {
 640       GeomShapePtr aNewShape = *aNewShapesIt;
 641       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 642       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 643
 644       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 645       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 646       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape)
 647         continue;
 648
 649       if (aResultShape->isSame(aNewShape))
 650         continue; // it is stored on the root level (2241 - history propagation issue)
 651
 652       int aTag = isGenerated ? getGenerationTag(aNewShape_) : getModificationTag(aNewShape_);
 653       TNaming_Builder*aBuilder = builder(aTag);
 654       if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_))
 655         continue; // new shape was already stored.
 656
 657       buildName(aTag, theName);
 658       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 659                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 660       // store information about the external document reference to restore old shape on open
 661       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 662     }
 663   }
 664 }
 665
 666 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 667                                             const GeomShapePtr& theOldShape,
 668                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 669                                             const std::string& theName,
 670                                             const bool theSaveOldIfNotInTree)
 671 {
 672   GeomShapePtr aResultShape = shape();
 673   TopTools_MapOfShape anAlreadyProcessedShapes;
 674   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 675   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 676        anOldShapeExp.more();
 677        anOldShapeExp.next())
 678   {
 679     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 680     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 681
 682     // There is no sense to write history if shape already processed
 683     // or old shape does not exist in the document.
 684     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 685     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 686       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 687     TDF_Label anOriginalLabel;
 688     bool anOldSubShapeNotInTree =
 689       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 690     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 691       if (theSaveOldIfNotInTree) {
 692         std::string aSelectionName = theName + "Selected";
 693         generated(anOldSubShape, aSelectionName, false);
 694       } else
 695         continue;
 696     }
 697
 698     // Get new shapes.
 699     ListOfShape aNewShapes;
 700     theAlgo->generated(anOldSubShape, aNewShapes);
 701
 702     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 703
 704     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 705          aNewShapesIt != aNewShapes.cend();
 706          ++aNewShapesIt)
 707     {
 708       GeomShapePtr aNewShape = *aNewShapesIt;
 709       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 710
 711       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 712       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 713       if (aNewShapeIsSameAsOldShape || aNewShapeIsNotInResultShape) {
 714         continue;
 715       }
 716
 717       if (aResultShape->isSame(aNewShape))
 718         continue; // it is stored on the root level
 719
 720       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 721       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 722         // TODO: This is a workaround. New shape should be only edge or face.
 723         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 724                                                                             : TopAbs_FACE;
 725         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 726         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 727           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 728           // store information about the external document reference to restore old shape on open
 729           storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 730         }
 731         buildName(aTag, theName);
 732       } else {
 733         int aTag = getGenerationTag(aNewShape_);
 734         if (aTag == INVALID_TAG) return;
 735         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 736         buildName(aTag, theName);
 737         // store information about the external document reference to restore old shape on open
 738         storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 739       }
 740     }
 741   }
 742 }
 743
 744 // LCOV_EXCL_START
 745 //=======================================================================
 746 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 747   const TopAbs_ShapeEnum        theGeneratedFrom,
 748   TopTools_DataMapOfShapeShape& theDangles)
 749 {
 750   theDangles.Clear();
 751   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 752   TopAbs_ShapeEnum GeneratedTo;
 753   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 754   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 755   else return Standard_False;
 756   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 757   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 758     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 759     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 760     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 761   }
 762   return theDangles.Extent();
 763 }
 764
 765 //=======================================================================
 766 void loadGeneratedDangleShapes(
 767   const TopoDS_Shape&      theShapeIn,
 768   const TopAbs_ShapeEnum   theGeneratedFrom,
 769   TNaming_Builder *        theBuilder)
 770 {
 771   TopTools_DataMapOfShapeShape dangles;
 772   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 773   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 774   for (; itr.More(); itr.Next())
 775     theBuilder->Generated(itr.Key(), itr.Value());
 776 }
 777 // LCOV_EXCL_STOP
 778
 779 //=======================================================================
 780 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 781                                        const std::string& theName)
 782 {
 783   if(theShape->isNull()) return;
 784   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 785   std::string aName;
 786   if (aShape.ShapeType() == TopAbs_SOLID) {
 787     TopExp_Explorer expl(aShape, TopAbs_FACE);
 788     for (; expl.More(); expl.Next()) {
 789       builder(myFreePrimitiveTag)->Generated(expl.Current());
 790       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 791       aName = theName + "_" + aStr.ToCString();
 792       buildName(myFreePrimitiveTag, aName);
 793       ++myFreePrimitiveTag;
 794     }
 795   }
 796   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 797     // load faces and all the free edges
 798     TopTools_IndexedMapOfShape Faces;
 799     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 800     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 801       TopExp_Explorer expl(aShape, TopAbs_FACE);
 802       for (; expl.More(); expl.Next()) {
 803         builder(myFreePrimitiveTag)->Generated(expl.Current());
 804         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 805         aName = theName + "_" + aStr.ToCString();
 806         buildName(myFreePrimitiveTag, aName);
 807         ++myFreePrimitiveTag;
 808       }
 809     }
 810     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 811     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 812     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 813     {
 814       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 815       if (aLL.Extent() < 2) {
 816         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 817           continue;
 818         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 819         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 820         aName = theName + "_" + aStr.ToCString();
 821         buildName(myFreePrimitiveTag, aName);
 822         ++myFreePrimitiveTag;
 823       } else {
 824         TopTools_ListIteratorOfListOfShape anIter(aLL);
 825         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 826         anIter.Next();
 827         if(aFace.IsEqual(anIter.Value())) {
 828           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 829           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 830           aName = theName + "_" + aStr.ToCString();
 831           buildName(myFreePrimitiveTag, aName);
 832           ++myFreePrimitiveTag;
 833         }
 834       }
 835     }
 836   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 837     TopTools_IndexedMapOfShape Edges;
 838     BRepTools::Map3DEdges(aShape, Edges);
 839     if (Edges.Extent() == 1) {
 840       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 841       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 842       for (; expl.More(); expl.Next()) {
 843         builder(myFreePrimitiveTag)->Generated(expl.Current());
 844         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 845         aName = theName + "_" + aStr.ToCString();
 846         buildName(myFreePrimitiveTag, aName);
 847         ++myFreePrimitiveTag;
 848       }
 849     } else {
 850       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 851       for (; expl.More(); expl.Next()) {
 852         builder(myFreePrimitiveTag)->Generated(expl.Current());
 853         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 854         aName = theName + "_" + aStr.ToCString();
 855         buildName(myFreePrimitiveTag, aName);
 856         ++myFreePrimitiveTag;
 857       }
 858       // and load generated vertices.
 859       TopTools_DataMapOfShapeShape generated;
 860       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 861       {
 862         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 863         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 864       }
 865     }
 866   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 867     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 868     for (; expl.More(); expl.Next()) {
 869       builder(myFreePrimitiveTag)->Generated(expl.Current());
 870       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 871       aName = theName + "_" + aStr.ToCString();
 872       buildName(myFreePrimitiveTag, aName);
 873       ++myFreePrimitiveTag;
 874     }
 875   }
 876 }
 877
 878 //=======================================================================
 879 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 880   TopTools_ListOfShape&   theList)
 881 {
 882   theList.Clear();
 883   // edges -> ancestor faces list
 884   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 885   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 886   // keeps the shapes which are already in the resulting list
 887   TopTools_MapOfShape alreadyThere;
 888   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 889   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 890
 891   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 892   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 893     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 894     if (ancestors.Extent() < 2)
 895       continue;
 896     Standard_Integer anID = 0;
 897     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 898       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 899     }
 900     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 901       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 902         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 903       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 904       for(; aSameEdge.More(); aSameEdge.Next()) {
 905         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 906           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 907         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 908           break;
 909
 910         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 911         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 912           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 913           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 914             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 915               break;
 916           }
 917           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 918             break;
 919         }
 920         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 921           if (alreadyThere.Add(aSameEdge.Value()))
 922             theList.Append(aSameEdge.Value());
 923           if (alreadyThere.Add(anAncestorsIter.Key()))
 924             theList.Append(anAncestorsIter.Key());
 925         }
 926       }
 927     } else { // ID is unique, just add this edge
 928       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 929     }
 930     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 931   }
 932   return theList.Extent();
 933 }
 934
 935 //=======================================================================
 936 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 937 {
 938   if(theShape->isNull()) return;
 939   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 940   std::string aName;
 941   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 942     TopoDS_Iterator itr(aShape);
 943     for (; itr.More(); itr.Next()) {
 944       builder(myFreePrimitiveTag)->Generated(itr.Value());
 945       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 946       aName = theName + "_" + aStr.ToCString();
 947       buildName(myFreePrimitiveTag, aName);
 948       ++myFreePrimitiveTag;
 949       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 950         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 951       {
 952         GeomShapePtr itrShape(new GeomAPI_Shape());
 953         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 954         loadFirstLevel(itrShape, theName);
 955       } else {
 956         GeomShapePtr itrShape(new GeomAPI_Shape());
 957         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 958         loadNextLevels(itrShape, theName);
 959       }
 960     }
 961   } else {
 962     GeomShapePtr itrShape(new GeomAPI_Shape());
 963     itrShape->setImpl(new TopoDS_Shape(aShape));
 964     loadNextLevels(itrShape, theName);
 965   }
 966   TopTools_ListOfShape   aList;
 967   if(findAmbiguities(aShape, aList)) {
 968     TopTools_ListIteratorOfListOfShape it(aList);
 969     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 970       builder(myFreePrimitiveTag)->Generated(it.Value());
 971       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 972       aName = theName + "_" + aStr.ToCString();
 973       buildName(myFreePrimitiveTag, aName);
 974     }
 975   }
 976 }
 977
 978 GeomShapePtr Model_BodyBuilder::shape()
 979 {
 980   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 981   if (aData && aData->isValid()) {
 982     TDF_Label aShapeLab = aData->shapeLab();
 983     Handle(TDF_Reference) aRef;
 984     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 985       aShapeLab = aRef->Get();
 986     }
 987     Handle(TNaming_NamedShape) aName;
 988     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
 989       TopoDS_Shape aShape = aName->Get();
 990       if (!aShape.IsNull()) {
 991         GeomShapePtr aRes(new GeomAPI_Shape);
 992         aRes->setImpl(new TopoDS_Shape(aShape));
 993         return aRes;
 994       }
 995     }
 996   }
 997   return GeomShapePtr();
 998 }