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