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