src/Model/Model_BodyBuilder.cpp

   1 // Copyright (C) 2014-2017  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
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include <Model_BodyBuilder.h>
  22
  23 #include <Model_Data.h>
  24 #include <Model_Document.h>
  25 #include <TNaming_Builder.hxx>
  26 #include <TNaming_NamedShape.hxx>
  27 #include <TNaming_Iterator.hxx>
  28 #include <TNaming_Tool.hxx>
  29 #include <TDataStd_Name.hxx>
  30 #include <TDataStd_Integer.hxx>
  31 #include <TopoDS.hxx>
  32 #include <TopoDS_Face.hxx>
  33 #include <TDF_ChildIterator.hxx>
  34 #include <TDF_ChildIDIterator.hxx>
  35 #include <TDF_Reference.hxx>
  36 #include <TopTools_MapOfShape.hxx>
  37 #include <TopExp_Explorer.hxx>
  38 #include <TopTools_ListOfShape.hxx>
  39 #include <TopTools_ListIteratorOfListOfShape.hxx>
  40 #include <TopTools_DataMapOfShapeListOfShape.hxx>
  41 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
  42 #include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
  43 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  44 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  45 #include <TopTools_IndexedMapOfShape.hxx>
  46 #include <TopTools_DataMapOfShapeShape.hxx>
  47 #include <TopExp.hxx>
  48 #include <BRepTools.hxx>
  49 #include <BRep_Tool.hxx>
  50 #include <BRepTools_History.hxx>
  51 #include <GeomAPI_Shape.h>
  52 #include <GeomAPI_ShapeExplorer.h>
  53 #include <GeomAlgoAPI_MakeShape.h>
  54 #include <GeomAlgoAPI_SortListOfShapes.h>
  55 #include <Config_PropManager.h>
  56 // DEB
  57 //#include <TCollection_AsciiString.hxx>
  58 //#include <TDF_Tool.hxx>
  59 //#define DEB_IMPORT 1
  60
  61 static const int INVALID_TAG            = -1;
  62 static const int GENERATED_VERTICES_TAG = 1;
  63 static const int GENERATED_EDGES_TAG    = 2;
  64 static const int GENERATED_FACES_TAG    = 3;
  65 static const int MODIFIED_VERTICES_TAG  = 4;
  66 static const int MODIFIED_EDGES_TAG     = 5;
  67 static const int MODIFIED_FACES_TAG     = 6;
  68 static const int DELETED_TAG            = 7;
  69 static const int PRIMITIVES_START_TAG   = 11;
  70
  71 static int getGenerationTag(const TopoDS_Shape& theShape) {
  72   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  73   switch (aShapeType) {
  74     case TopAbs_VERTEX: return GENERATED_VERTICES_TAG;
  75     case TopAbs_EDGE:   return GENERATED_EDGES_TAG;
  76     case TopAbs_FACE:   return GENERATED_FACES_TAG;
  77   }
  78
  79   return INVALID_TAG;
  80 }
  81
  82 static int getModificationTag(const TopoDS_Shape& theShape) {
  83   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  84   switch (aShapeType) {
  85     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  86     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  87     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  88   }
  89
  90   return INVALID_TAG;
  91 }
  92
  93 static TopAbs_ShapeEnum convertShapeType(const GeomAPI_Shape::ShapeType theType) {
  94   switch (theType) {
  95     case GeomAPI_Shape::VERTEX:    return TopAbs_VERTEX;
  96     case GeomAPI_Shape::EDGE:      return TopAbs_EDGE;
  97     case GeomAPI_Shape::WIRE:      return TopAbs_WIRE;
  98     case GeomAPI_Shape::FACE:      return TopAbs_FACE;
  99     case GeomAPI_Shape::SHELL:     return TopAbs_SHELL;
 100     case GeomAPI_Shape::SOLID:     return TopAbs_SOLID;
 101     case GeomAPI_Shape::COMPSOLID: return TopAbs_COMPSOLID;
 102     case GeomAPI_Shape::COMPOUND:  return TopAbs_COMPOUND;
 103     case GeomAPI_Shape::SHAPE:     return TopAbs_SHAPE;
 104   }
 105   return TopAbs_SHAPE;
 106 }
 107
 108 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
 109                             const TopoDS_Shape& theOldShape,
 110                             const TopoDS_Shape& theNewShape)
 111 {
 112   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 113     aNamingIt.More();
 114     aNamingIt.Next())
 115   {
 116     if (aNamingIt.NewShape().IsSame(theNewShape)
 117       && aNamingIt.OldShape().IsSame(theOldShape))
 118     {
 119       return true;
 120     }
 121   }
 122
 123   return false;
 124 }
 125
 126 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 127 : ModelAPI_BodyBuilder(theOwner),
 128   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 129 {
 130 }
 131
 132 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 133                               const bool theIsStoreSameShapes)
 134 {
 135   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 136   if (aData) {
 137     TDF_Label aShapeLab = aData->shapeLab();
 138     // clean builders
 139     clean();
 140     // store the new shape as primitive
 141     TNaming_Builder aBuilder(aShapeLab);
 142     if (!theShape)
 143       return;  // bad shape
 144     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 145     if (aShape.IsNull())
 146       return;  // null shape inside
 147
 148     if(!theIsStoreSameShapes) {
 149       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 150       if(!aNS.IsNull() && !aNS->IsEmpty()) {
 151         // This shape is already in document, store reference instead of shape;
 152         const TDF_Label aFoundLabel = aNS->Label();
 153         TDF_Reference::Set(aShapeLab, aFoundLabel);
 154         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 155         return;
 156       }
 157     }
 158
 159     aBuilder.Generated(aShape);
 160     // register name
 161     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 162     if(!aBuilder.NamedShape()->IsEmpty()) {
 163       Handle(TDataStd_Name) anAttr;
 164       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 165         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 166         if(!aName.empty()) {
 167           std::shared_ptr<Model_Document> aDoc =
 168             std::dynamic_pointer_cast<Model_Document>(document());
 169           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 170         }
 171       }
 172     }
 173   }
 174 }
 175
 176 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 177   const GeomShapePtr& theToShape)
 178 {
 179   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 180   if (aData) {
 181     TDF_Label aShapeLab = aData->shapeLab();
 182     // clean builders
 183     clean();
 184     // store the new shape as primitive
 185     TNaming_Builder aBuilder(aShapeLab);
 186     if (!theFromShape || !theToShape)
 187       return;  // bad shape
 188     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 189     if (aShapeBasis.IsNull())
 190       return;  // null shape inside
 191     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 192     if (aShapeNew.IsNull())
 193       return;  // null shape inside
 194     aBuilder.Generated(aShapeBasis, aShapeNew);
 195     // register name
 196     if(!aBuilder.NamedShape()->IsEmpty()) {
 197       Handle(TDataStd_Name) anAttr;
 198       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 199         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 200         if(!aName.empty()) {
 201           std::shared_ptr<Model_Document> aDoc =
 202             std::dynamic_pointer_cast<Model_Document>(document());
 203           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 204         }
 205       }
 206     }
 207   }
 208 }
 209
 210 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 211 {
 212   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 213   if (aFind == myBuilders.end()) {
 214     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 215     myBuilders[theTag] = new TNaming_Builder(
 216       theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag));
 217     aFind = myBuilders.find(theTag);
 218   }
 219   return aFind->second;
 220 }
 221
 222 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 223                                       const GeomShapePtr& theNewShape,
 224                                       const bool theIsCleanStored)
 225 {
 226   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 227   if (aData) {
 228     // clean builders
 229     if (theIsCleanStored) clean();
 230     // store the new shape as primitive
 231     TNaming_Builder* aBuilder = builder(0);
 232     if (!theOldShape || !theNewShape)
 233       return;  // bad shape
 234     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 235     if (aShapeOld.IsNull())
 236       return;  // null shape inside
 237     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 238     if (aShapeNew.IsNull())
 239       return;  // null shape inside
 240     aBuilder->Modify(aShapeOld, aShapeNew);
 241     if(!aBuilder->NamedShape()->IsEmpty()) {
 242       Handle(TDataStd_Name) anAttr;
 243       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 244         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 245         if(!aName.empty()) {
 246           std::shared_ptr<Model_Document> aDoc =
 247             std::dynamic_pointer_cast<Model_Document>(document());
 248           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 249         }
 250       }
 251     }
 252   }
 253 }
 254
 255 void  Model_BodyBuilder::storeWithoutNaming(const GeomShapePtr& theShape)
 256 {
 257   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 258   if (aData) {
 259     clean();
 260     if (!theShape.get())
 261       return; // bad shape
 262     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 263     if (aShape.IsNull())
 264       return;  // null shape inside
 265     TNaming_Builder aBuilder(aData->shapeLab());
 266     aBuilder.Select(aShape, aShape);
 267   }
 268 }
 269
 270 void Model_BodyBuilder::clean()
 271 {
 272   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 273   if (aLab.IsNull())
 274     return;
 275   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 276   for(; aBuilder != myBuilders.end(); aBuilder++) {
 277     delete aBuilder->second;
 278     // clear also shapes on cleaned sub-labels (#2241)
 279     Handle(TNaming_NamedShape) aNS;
 280     if (aLab.FindChild(aBuilder->first).FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 281       aNS->Clear();
 282     }
 283   }
 284   myBuilders.clear();
 285   // remove the old reference (if any)
 286   aLab.ForgetAttribute(TDF_Reference::GetID());
 287   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 288 }
 289
 290 Model_BodyBuilder::~Model_BodyBuilder()
 291 {
 292   clean();
 293 }
 294
 295 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 296 {
 297   std::string aName = theName;
 298   std::string aPrefix = "";
 299   switch (theTag) {
 300     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 301     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 302     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 303     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 304     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 305     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 306   }
 307   aName.insert(0, aPrefix);
 308
 309   TDataStd_Name::Set(builder(theTag)->NamedShape()->Label(), aName.c_str());
 310 }
 311 void Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 312                                   const std::string& theName)
 313 {
 314   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 315   builder(myFreePrimitiveTag)->Generated(aShape);
 316   if (!theName.empty()) {
 317     std::string aName = theName;
 318     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 319       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 320       aName += "_" + std::to_string(++(anIndexTags.index));
 321       anIndexTags.tags.push_back(myFreePrimitiveTag);
 322       if (anIndexTags.index == 2) {
 323         buildName(anIndexTags.tags.front(), theName + "_1");
 324       }
 325     }
 326     else {
 327       IndexTags anIndexTags;
 328       anIndexTags.index = 1;
 329       anIndexTags.tags.push_back(myFreePrimitiveTag);
 330       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 331     }
 332
 333     buildName(myFreePrimitiveTag, aName);
 334   }
 335   ++myFreePrimitiveTag;
 336 }
 337
 338 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 339                                   const GeomShapePtr& theNewShape,
 340                                   const std::string& theName)
 341 {
 342   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 343   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 344   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 345   int aTag;
 346   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 347     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 348     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 349     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 350     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 351       builder(aTag)->Generated(anOldShape, anExp.Current());
 352     }
 353     buildName(aTag, theName);
 354   } else {
 355     aTag = getGenerationTag(aNewShape);
 356     if (aTag == INVALID_TAG) return;
 357     builder(aTag)->Generated(anOldShape, aNewShape);
 358     buildName(aTag, theName);
 359   }
 360 }
 361
 362 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 363                                  const GeomShapePtr& theNewShape,
 364                                  const std::string& theName)
 365 {
 366   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 367   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 368   int aTag = getModificationTag(aNewShape);
 369   if (aTag == INVALID_TAG) return;
 370   builder(aTag)->Modify(anOldShape, aNewShape);
 371   buildName(aTag, theName);
 372 }
 373
 374 void Model_BodyBuilder::deleted(const GeomShapePtr& theOldShape)
 375 {
 376   TopoDS_Shape aShape = theOldShape->impl<TopoDS_Shape>();
 377   builder(DELETED_TAG)->Delete(aShape);
 378 }
 379
 380 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 381                                           const GeomShapePtr& theOldShape,
 382                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 383                                           const GeomShapePtr& theShapesToExclude)
 384 {
 385   TopTools_MapOfShape anAlreadyProcessedShapes;
 386   GeomShapePtr aResultShape = shape();
 387   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 388        anExp.more();
 389        anExp.next())
 390   {
 391     GeomShapePtr anOldSubShape = anExp.current();
 392     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 393     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 394         || !theAlgo->isDeleted(anOldSubShape)
 395         || aResultShape->isSubShape(anOldSubShape, false)
 396         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 397     {
 398       continue;
 399     }
 400
 401     ListOfShape aNewShapes;
 402     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 403       theAlgo->modified(anOldSubShape, aNewShapes);
 404     }
 405
 406     if (aNewShapes.size() == 0
 407         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 408       builder(DELETED_TAG)->Delete(anOldSubShape_);
 409     }
 410   }
 411 }
 412
 413 static void removeBadShapes(ListOfShape& theShapes)
 414 {
 415   ListOfShape::iterator anIt = theShapes.begin();
 416   while (anIt != theShapes.end()) {
 417     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 418     bool aSkip = aNewShape.IsNull()
 419       || (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 420     if (aSkip) {
 421       ListOfShape::iterator aRemoveIt = anIt++;
 422       theShapes.erase(aRemoveIt);
 423     } else {
 424       ++anIt;
 425     }
 426   }
 427 }
 428
 429 // Keep only the shapes with minimal shape type
 430 static void keepTopLevelShapes(ListOfShape& theShapes,
 431                                const TopoDS_Shape& theRoot,
 432                                const GeomShapePtr& theResultShape = GeomShapePtr())
 433 {
 434   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 435   ListOfShape::iterator anIt = theShapes.begin();
 436   while (anIt != theShapes.end()) {
 437     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 438     bool aSkip = aNewShape.IsNull() ||
 439       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 440     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 441         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 442       ListOfShape::iterator aRemoveIt = anIt++;
 443       theShapes.erase(aRemoveIt);
 444     } else {
 445       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 446       if (aType < aKeepShapeType) {
 447         // found a shape with lesser shape type => remove all previous shapes
 448         aKeepShapeType = aType;
 449         theShapes.erase(theShapes.begin(), anIt);
 450         ++anIt;
 451       } else if (aType > aKeepShapeType) {
 452         // shapes with greater shape type should be removed from the list
 453         ListOfShape::iterator aRemoveIt = anIt++;
 454         theShapes.erase(aRemoveIt);
 455       } else
 456         ++anIt;
 457     }
 458   }
 459 }
 460
 461 // returns an ancestor shape-type thaty used for naming-definition of the sub-type
 462 TopAbs_ShapeEnum typeOfAncestor(const TopAbs_ShapeEnum theSubType) {
 463   if (theSubType == TopAbs_VERTEX)
 464     return TopAbs_EDGE;
 465   if (theSubType == TopAbs_EDGE)
 466     return TopAbs_FACE;
 467   return TopAbs_VERTEX; // bad case
 468 }
 469
 470 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 471                                            const GeomShapePtr& theOldShape,
 472                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 473                                            const std::string& theName)
 474 {
 475   GeomShapePtr aResultShape = shape();
 476   GeomShapePtr aShapeToExplore = theOldShape;
 477   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 478     // use optimized set of old shapes for this
 479     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 480                                                       aResultShape,
 481                                                       theShapeTypeToExplore);
 482     if (aCompound.get()) aShapeToExplore = aCompound;
 483   }
 484
 485   TopTools_MapOfShape anAlreadyProcessedShapes;
 486   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 487   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 488        anOldShapeExp.more();
 489        anOldShapeExp.next())
 490   {
 491     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 492     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 493
 494     // There is no sense to write history if shape already processed
 495     // or old shape does not exist in the document.
 496     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 497     bool anOldSubShapeNotInTree = TNaming_Tool::NamedShape(anOldSubShape_, aData->shapeLab())
 498                                   .IsNull();
 499     if (anOldSubShapeAlreadyProcessed
 500         || anOldSubShapeNotInTree)
 501     {
 502       continue;
 503     }
 504
 505     // Get new shapes.
 506     ListOfShape aNewShapes;
 507     theAlgo->modified(anOldSubShape, aNewShapes);
 508
 509     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 510          aNewShapesIt != aNewShapes.cend();
 511          ++aNewShapesIt)
 512     {
 513       GeomShapePtr aNewShape = *aNewShapesIt;
 514       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 515       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 516
 517       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 518       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 519       if (aNewShapeIsSameAsOldShape
 520           || aNewShapeIsNotInResultShape)
 521       {
 522         continue;
 523       }
 524
 525       TNaming_Builder* aBuilder;
 526       if (aResultShape->isSame(aNewShape)) {
 527         // keep the modification evolution on the root level (2241 - history propagation issue)
 528         aBuilder = builder(0);
 529         TDF_Label aShapeLab = aBuilder->NamedShape()->Label();
 530         Handle(TDF_Reference) aRef;
 531         if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 532           // Store only in case if it does not have reference.
 533           continue;
 534         }
 535
 536         // Check if new shape was already stored.
 537         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 538
 539         if (!aBuilder->NamedShape().IsNull() &&
 540             ((isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_GENERATED)
 541               || (!isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_MODIFY)))
 542         {
 543           myBuilders.erase(0); // clear old builder to avoid different evolutions crash
 544           aBuilder = builder(0);
 545         }
 546       } else {
 547         int aTag = isGenerated ? getGenerationTag(aNewShape_)
 548                                : getModificationTag(aNewShape_);
 549         aBuilder = builder(aTag);
 550
 551         // Check if new shape was already stored.
 552         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 553
 554         buildName(aTag, theName);
 555       }
 556
 557       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 558                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 559     }
 560   }
 561 }
 562
 563 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 564                                             const GeomShapePtr& theOldShape,
 565                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 566                                             const std::string& theName)
 567 {
 568   TopTools_MapOfShape anAlreadyProcessedShapes;
 569   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 570        anOldShapeExp.more();
 571        anOldShapeExp.next())
 572   {
 573     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 574     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 575
 576     // There is no sense to write history if shape already processed.
 577     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)) continue;
 578
 579     // Get new shapes.
 580     ListOfShape aNewShapes;
 581     theAlgo->generated(anOldSubShape, aNewShapes);
 582
 583     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 584
 585     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 586          aNewShapesIt != aNewShapes.cend();
 587          ++aNewShapesIt)
 588     {
 589       GeomShapePtr aNewShape = *aNewShapesIt;
 590       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 591
 592       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 593       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 594         // TODO: This is a workaround. New shape should be only edge or face.
 595         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 596                                                                             : TopAbs_FACE;
 597         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 598         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 599           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 600         }
 601         buildName(aTag, theName);
 602       }
 603       else {
 604         int aTag = getGenerationTag(aNewShape_);
 605         if (aTag == INVALID_TAG) return;
 606         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 607         buildName(aTag, theName);
 608       }
 609     }
 610   }
 611 }
 612
 613 //=======================================================================
 614 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 615   const TopAbs_ShapeEnum        theGeneratedFrom,
 616   TopTools_DataMapOfShapeShape& theDangles)
 617 {
 618   theDangles.Clear();
 619   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 620   TopAbs_ShapeEnum GeneratedTo;
 621   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 622   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 623   else return Standard_False;
 624   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 625   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 626     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 627     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 628     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 629   }
 630   return theDangles.Extent();
 631 }
 632
 633 //=======================================================================
 634 void loadGeneratedDangleShapes(
 635   const TopoDS_Shape&      theShapeIn,
 636   const TopAbs_ShapeEnum   theGeneratedFrom,
 637   TNaming_Builder *        theBuilder)
 638 {
 639   TopTools_DataMapOfShapeShape dangles;
 640   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 641   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 642   for (; itr.More(); itr.Next())
 643     theBuilder->Generated(itr.Key(), itr.Value());
 644 }
 645
 646 //=======================================================================
 647 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 648                                        const std::string& theName)
 649 {
 650   if(theShape->isNull()) return;
 651   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 652   std::string aName;
 653   if (aShape.ShapeType() == TopAbs_SOLID) {
 654     TopExp_Explorer expl(aShape, TopAbs_FACE);
 655     for (; expl.More(); expl.Next()) {
 656       builder(myFreePrimitiveTag)->Generated(expl.Current());
 657       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 658       aName = theName + "_" + aStr.ToCString();
 659       buildName(myFreePrimitiveTag, aName);
 660       ++myFreePrimitiveTag;
 661     }
 662   }
 663   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 664     // load faces and all the free edges
 665     TopTools_IndexedMapOfShape Faces;
 666     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 667     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 668       TopExp_Explorer expl(aShape, TopAbs_FACE);
 669       for (; expl.More(); expl.Next()) {
 670         builder(myFreePrimitiveTag)->Generated(expl.Current());
 671         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 672         aName = theName + "_" + aStr.ToCString();
 673         buildName(myFreePrimitiveTag, aName);
 674         ++myFreePrimitiveTag;
 675       }
 676     }
 677     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 678     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 679     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 680     {
 681       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 682       if (aLL.Extent() < 2) {
 683         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 684           continue;
 685         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 686         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 687         aName = theName + "_" + aStr.ToCString();
 688         buildName(myFreePrimitiveTag, aName);
 689         ++myFreePrimitiveTag;
 690       } else {
 691         TopTools_ListIteratorOfListOfShape anIter(aLL);
 692         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 693         anIter.Next();
 694         if(aFace.IsEqual(anIter.Value())) {
 695           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 696           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 697           aName = theName + "_" + aStr.ToCString();
 698           buildName(myFreePrimitiveTag, aName);
 699           ++myFreePrimitiveTag;
 700         }
 701       }
 702     }
 703   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 704     TopTools_IndexedMapOfShape Edges;
 705     BRepTools::Map3DEdges(aShape, Edges);
 706     if (Edges.Extent() == 1) {
 707       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 708       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 709       for (; expl.More(); expl.Next()) {
 710         builder(myFreePrimitiveTag)->Generated(expl.Current());
 711         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 712         aName = theName + "_" + aStr.ToCString();
 713         buildName(myFreePrimitiveTag, aName);
 714         ++myFreePrimitiveTag;
 715       }
 716     } else {
 717       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 718       for (; expl.More(); expl.Next()) {
 719         builder(myFreePrimitiveTag)->Generated(expl.Current());
 720         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 721         aName = theName + "_" + aStr.ToCString();
 722         buildName(myFreePrimitiveTag, aName);
 723         ++myFreePrimitiveTag;
 724       }
 725       // and load generated vertices.
 726       TopTools_DataMapOfShapeShape generated;
 727       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 728       {
 729         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 730         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 731       }
 732     }
 733   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 734     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 735     for (; expl.More(); expl.Next()) {
 736       builder(myFreePrimitiveTag)->Generated(expl.Current());
 737       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 738       aName = theName + "_" + aStr.ToCString();
 739       buildName(myFreePrimitiveTag, aName);
 740       ++myFreePrimitiveTag;
 741     }
 742   }
 743 }
 744
 745 //=======================================================================
 746 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 747   TopTools_ListOfShape&   theList)
 748 {
 749   theList.Clear();
 750   // edges -> ancestor faces list
 751   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 752   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 753   // keeps the shapes which are already in the resulting list
 754   TopTools_MapOfShape alreadyThere;
 755   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 756   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 757
 758   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 759   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 760     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 761     if (ancestors.Extent() < 2)
 762       continue;
 763     Standard_Integer anID = 0;
 764     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 765       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 766     }
 767     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 768       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 769         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 770       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 771       for(; aSameEdge.More(); aSameEdge.Next()) {
 772         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 773           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 774         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 775           break;
 776
 777         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 778         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 779           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 780           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 781             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 782               break;
 783           }
 784           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 785             break;
 786         }
 787         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 788           if (alreadyThere.Add(aSameEdge.Value()))
 789             theList.Append(aSameEdge.Value());
 790           if (alreadyThere.Add(anAncestorsIter.Key()))
 791             theList.Append(anAncestorsIter.Key());
 792         }
 793       }
 794     } else { // ID is unique, just add this edge
 795       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 796     }
 797     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 798   }
 799   return theList.Extent();
 800 }
 801
 802 //=======================================================================
 803 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 804 {
 805   if(theShape->isNull()) return;
 806   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 807   std::string aName;
 808   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 809     TopoDS_Iterator itr(aShape);
 810     for (; itr.More(); itr.Next()) {
 811       builder(myFreePrimitiveTag)->Generated(itr.Value());
 812       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 813       aName = theName + "_" + aStr.ToCString();
 814       buildName(myFreePrimitiveTag, aName);
 815       ++myFreePrimitiveTag;
 816       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 817         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 818       {
 819         GeomShapePtr itrShape(new GeomAPI_Shape());
 820         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 821         loadFirstLevel(itrShape, theName);
 822       } else {
 823         GeomShapePtr itrShape(new GeomAPI_Shape());
 824         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 825         loadNextLevels(itrShape, theName);
 826       }
 827     }
 828   } else {
 829     GeomShapePtr itrShape(new GeomAPI_Shape());
 830     itrShape->setImpl(new TopoDS_Shape(aShape));
 831     loadNextLevels(itrShape, theName);
 832   }
 833   TopTools_ListOfShape   aList;
 834   if(findAmbiguities(aShape, aList)) {
 835     TopTools_ListIteratorOfListOfShape it(aList);
 836     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 837       builder(myFreePrimitiveTag)->Generated(it.Value());
 838       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 839       aName = theName + "_" + aStr.ToCString();
 840       buildName(myFreePrimitiveTag, aName);
 841     }
 842   }
 843 }
 844
 845 //=======================================================================
 846 void Model_BodyBuilder::loadDisconnectedEdges(GeomShapePtr theShape, const std::string& theName)
 847 {
 848   if(theShape->isNull()) return;
 849   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 850   TopTools_DataMapOfShapeListOfShape edgeNaborFaces;
 851   TopTools_ListOfShape empty;
 852   TopExp_Explorer explF(aShape, TopAbs_FACE);
 853   for (; explF.More(); explF.Next()) {
 854     const TopoDS_Shape& aFace = explF.Current();
 855     TopExp_Explorer explV(aFace, TopAbs_EDGE);
 856     for (; explV.More(); explV.Next()) {
 857       const TopoDS_Shape& anEdge = explV.Current();
 858       if (!edgeNaborFaces.IsBound(anEdge)) edgeNaborFaces.Bind(anEdge, empty);
 859       Standard_Boolean faceIsNew = Standard_True;
 860       TopTools_ListIteratorOfListOfShape itrF(edgeNaborFaces.Find(anEdge));
 861       for (; itrF.More(); itrF.Next()) {
 862         if (itrF.Value().IsSame(aFace)) {
 863           faceIsNew = Standard_False;
 864           break;
 865         }
 866       }
 867       if (faceIsNew)
 868         edgeNaborFaces.ChangeFind(anEdge).Append(aFace);
 869     }
 870   }
 871
 872   TopTools_MapOfShape anEdgesToDelete;
 873   TopExp_Explorer anEx(aShape,TopAbs_EDGE);
 874   std::string aName;
 875   for(;anEx.More();anEx.Next()) {
 876     Standard_Boolean aC0 = Standard_False;
 877     TopoDS_Shape anEdge1 = anEx.Current();
 878     if (edgeNaborFaces.IsBound(anEdge1)) {
 879       const TopTools_ListOfShape& aList1 = edgeNaborFaces.Find(anEdge1);
 880       if (aList1.Extent()<2) continue;
 881       TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(edgeNaborFaces);
 882       for (; itr.More(); itr.Next()) {
 883         TopoDS_Shape anEdge2 = itr.Key();
 884         if(anEdgesToDelete.Contains(anEdge2)) continue;
 885         if (anEdge1.IsSame(anEdge2)) continue;
 886         const TopTools_ListOfShape& aList2 = itr.Value();
 887         // compare lists of the neighbour faces of edge1 and edge2
 888         if (aList1.Extent() == aList2.Extent()) {
 889           Standard_Integer aMatches = 0;
 890           for(TopTools_ListIteratorOfListOfShape aLIter1(aList1);aLIter1.More();aLIter1.Next())
 891             for(TopTools_ListIteratorOfListOfShape aLIter2(aList2);aLIter2.More();aLIter2.Next())
 892               if (aLIter1.Value().IsSame(aLIter2.Value())) aMatches++;
 893           if (aMatches == aList1.Extent()) {
 894             aC0=Standard_True;
 895             builder(myFreePrimitiveTag)->Generated(anEdge2);
 896             anEdgesToDelete.Add(anEdge2);
 897             TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 898             aName = theName + "_" + aStr.ToCString();
 899             buildName(myFreePrimitiveTag, aName);
 900             ++myFreePrimitiveTag;
 901           }
 902         }
 903       }
 904       TopTools_MapIteratorOfMapOfShape itDelete(anEdgesToDelete);
 905       for(;itDelete.More();itDelete.Next())
 906         edgeNaborFaces.UnBind(itDelete.Key());
 907       edgeNaborFaces.UnBind(anEdge1);
 908     }
 909     if (aC0) {
 910       builder(myFreePrimitiveTag)->Generated(anEdge1);
 911       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 912       aName = theName + "_" + aStr.ToCString();
 913       buildName(myFreePrimitiveTag, aName);
 914       ++myFreePrimitiveTag;
 915     }
 916   }
 917 }
 918
 919 void Model_BodyBuilder::loadDisconnectedVertexes(GeomShapePtr theShape,
 920                                                  const std::string& theName)
 921 {
 922   if(theShape->isNull()) return;
 923   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 924   TopTools_DataMapOfShapeListOfShape vertexNaborEdges;
 925   TopTools_ListOfShape empty;
 926   TopExp_Explorer explF(aShape, TopAbs_EDGE);
 927   for (; explF.More(); explF.Next()) {
 928     const TopoDS_Shape& anEdge = explF.Current();
 929     TopExp_Explorer explV(anEdge, TopAbs_VERTEX);
 930     for (; explV.More(); explV.Next()) {
 931       const TopoDS_Shape& aVertex = explV.Current();
 932       if (!vertexNaborEdges.IsBound(aVertex)) vertexNaborEdges.Bind(aVertex, empty);
 933       Standard_Boolean faceIsNew = Standard_True;
 934       TopTools_ListIteratorOfListOfShape itrF(vertexNaborEdges.Find(aVertex));
 935       for (; itrF.More(); itrF.Next()) {
 936         if (itrF.Value().IsSame(anEdge)) {
 937           faceIsNew = Standard_False;
 938           break;
 939         }
 940       }
 941       if (faceIsNew) {
 942         vertexNaborEdges.ChangeFind(aVertex).Append(anEdge);
 943       }
 944     }
 945   }
 946   std::string aName;
 947   TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(vertexNaborEdges);
 948   for (; itr.More(); itr.Next()) {
 949     const TopTools_ListOfShape& naborEdges = itr.Value();
 950     if (naborEdges.Extent() < 2) {
 951       builder(myFreePrimitiveTag)->Generated(itr.Key());
 952       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 953       aName = theName + "_" + aStr.ToCString();
 954       buildName(myFreePrimitiveTag, aName);
 955       ++myFreePrimitiveTag;
 956     }
 957   }
 958 }
 959
 960 GeomShapePtr Model_BodyBuilder::shape()
 961 {
 962   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 963   if (aData && aData->isValid()) {
 964     TDF_Label aShapeLab = aData->shapeLab();
 965     Handle(TDF_Reference) aRef;
 966     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 967       aShapeLab = aRef->Get();
 968     }
 969     Handle(TNaming_NamedShape) aName;
 970     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
 971       TopoDS_Shape aShape = aName->Get();
 972       if (!aShape.IsNull()) {
 973         GeomShapePtr aRes(new GeomAPI_Shape);
 974         aRes->setImpl(new TopoDS_Shape(aShape));
 975         return aRes;
 976       }
 977     }
 978   }
 979   return GeomShapePtr();
 980 }
 981
 982 bool Model_BodyBuilder::isLatestEqual(const GeomShapePtr& theShape)
 983 {
 984   if (theShape.get()) {
 985     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 986     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 987     if (aData) {
 988       TDF_Label aShapeLab = aData->shapeLab();
 989       Handle(TNaming_NamedShape) aName;
 990       if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
 991         TopoDS_Shape aLatest = TNaming_Tool::CurrentShape(aName);
 992         if (aLatest.IsNull())
 993           return false;
 994         if (aLatest.IsEqual(aShape))
 995           return true;
 996         // check sub-shapes for comp-solids:
 997         for (TopExp_Explorer anExp(aShape, aLatest.ShapeType()); anExp.More(); anExp.Next()) {
 998           if (aLatest.IsEqual(anExp.Current()))
 999             return true;
1000         }
1001       }
1002     }
1003   }
1004   return false;
1005 }