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 <ModelAPI_Session.h>
  26 #include <TNaming_Builder.hxx>
  27 #include <TNaming_NamedShape.hxx>
  28 #include <TNaming_Iterator.hxx>
  29 #include <TNaming_Tool.hxx>
  30 #include <TNaming_SameShapeIterator.hxx>
  31 #include <TDataStd_Name.hxx>
  32 #include <TDataStd_Integer.hxx>
  33 #include <TDataStd_ExtStringList.hxx>
  34 #include <TopoDS.hxx>
  35 #include <TopoDS_Face.hxx>
  36 #include <TDF_ChildIterator.hxx>
  37 #include <TDF_ChildIDIterator.hxx>
  38 #include <TDF_Reference.hxx>
  39 #include <TDF_Tool.hxx>
  40 #include <TopTools_MapOfShape.hxx>
  41 #include <TopExp_Explorer.hxx>
  42 #include <TopTools_ListOfShape.hxx>
  43 #include <TopTools_ListIteratorOfListOfShape.hxx>
  44 #include <TopTools_DataMapOfShapeListOfShape.hxx>
  45 #include <TopTools_DataMapIteratorOfDataMapOfShapeListOfShape.hxx>
  46 #include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
  47 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  48 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  49 #include <TopTools_IndexedMapOfShape.hxx>
  50 #include <TopTools_DataMapOfShapeShape.hxx>
  51 #include <TopExp.hxx>
  52 #include <BRepTools.hxx>
  53 #include <BRep_Tool.hxx>
  54 #include <BRepTools_History.hxx>
  55 #include <GeomAPI_Shape.h>
  56 #include <GeomAPI_ShapeExplorer.h>
  57 #include <GeomAlgoAPI_MakeShape.h>
  58 #include <GeomAlgoAPI_SortListOfShapes.h>
  59 #include <Config_PropManager.h>
  60 // DEB
  61 //#include <TCollection_AsciiString.hxx>
  62 //#define DEB_IMPORT 1
  63
  64 /// reference to the shape in external document: sting list attribute identifier
  65 static const Standard_GUID kEXTERNAL_SHAPE_REF("9aa5dd14-6d34-4a8d-8786-05842fd7bbbd");
  66
  67 static const int INVALID_TAG            = -1;
  68 static const int GENERATED_VERTICES_TAG = 1;
  69 static const int GENERATED_EDGES_TAG    = 2;
  70 static const int GENERATED_FACES_TAG    = 3;
  71 static const int MODIFIED_VERTICES_TAG  = 4;
  72 static const int MODIFIED_EDGES_TAG     = 5;
  73 static const int MODIFIED_FACES_TAG     = 6;
  74 static const int DELETED_TAG            = 7;
  75 static const int PRIMITIVES_START_TAG   = 11;
  76
  77 static int getGenerationTag(const TopoDS_Shape& theShape) {
  78   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  79   switch (aShapeType) {
  80     case TopAbs_VERTEX: return GENERATED_VERTICES_TAG;
  81     case TopAbs_EDGE:   return GENERATED_EDGES_TAG;
  82     case TopAbs_FACE:   return GENERATED_FACES_TAG;
  83   }
  84
  85   return INVALID_TAG;
  86 }
  87
  88 static int getModificationTag(const TopoDS_Shape& theShape) {
  89   TopAbs_ShapeEnum aShapeType = theShape.ShapeType();
  90   switch (aShapeType) {
  91     case TopAbs_VERTEX: return MODIFIED_VERTICES_TAG;
  92     case TopAbs_EDGE:   return MODIFIED_EDGES_TAG;
  93     case TopAbs_FACE:   return MODIFIED_FACES_TAG;
  94   }
  95
  96   return INVALID_TAG;
  97 }
  98
  99 static TopAbs_ShapeEnum convertShapeType(const GeomAPI_Shape::ShapeType theType) {
 100   switch (theType) {
 101     case GeomAPI_Shape::VERTEX:    return TopAbs_VERTEX;
 102     case GeomAPI_Shape::EDGE:      return TopAbs_EDGE;
 103     case GeomAPI_Shape::WIRE:      return TopAbs_WIRE;
 104     case GeomAPI_Shape::FACE:      return TopAbs_FACE;
 105     case GeomAPI_Shape::SHELL:     return TopAbs_SHELL;
 106     case GeomAPI_Shape::SOLID:     return TopAbs_SOLID;
 107     case GeomAPI_Shape::COMPSOLID: return TopAbs_COMPSOLID;
 108     case GeomAPI_Shape::COMPOUND:  return TopAbs_COMPOUND;
 109     case GeomAPI_Shape::SHAPE:     return TopAbs_SHAPE;
 110   }
 111   return TopAbs_SHAPE;
 112 }
 113
 114 static bool isAlreadyStored(const TNaming_Builder* theBuilder,
 115                             const TopoDS_Shape& theOldShape,
 116                             const TopoDS_Shape& theNewShape)
 117 {
 118   for (TNaming_Iterator aNamingIt(theBuilder->NamedShape());
 119     aNamingIt.More();
 120     aNamingIt.Next())
 121   {
 122     if (aNamingIt.NewShape().IsSame(theNewShape)
 123       && aNamingIt.OldShape().IsSame(theOldShape))
 124     {
 125       return true;
 126     }
 127   }
 128
 129   return false;
 130 }
 131
 132 Model_BodyBuilder::Model_BodyBuilder(ModelAPI_Object* theOwner)
 133 : ModelAPI_BodyBuilder(theOwner),
 134   myFreePrimitiveTag(PRIMITIVES_START_TAG)
 135 {
 136 }
 137
 138 void Model_BodyBuilder::store(const GeomShapePtr& theShape,
 139                               const bool theIsStoreSameShapes)
 140 {
 141   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 142   if (aData) {
 143     TDF_Label aShapeLab = aData->shapeLab();
 144     // clean builders
 145     clean();
 146     // store the new shape as primitive
 147     TNaming_Builder aBuilder(aShapeLab);
 148     if (!theShape)
 149       return;  // bad shape
 150     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 151     if (aShape.IsNull())
 152       return;  // null shape inside
 153
 154     if(!theIsStoreSameShapes) {
 155       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aShape, aShapeLab);
 156       if(!aNS.IsNull() && !aNS->IsEmpty()) {
 157         // This shape is already in document, store reference instead of shape;
 158         const TDF_Label aFoundLabel = aNS->Label();
 159         TDF_Reference::Set(aShapeLab, aFoundLabel);
 160         aShapeLab.ForgetAttribute(TNaming_NamedShape::GetID());
 161         return;
 162       }
 163     }
 164
 165     aBuilder.Generated(aShape);
 166     // register name
 167     aShapeLab.ForgetAttribute(TDF_Reference::GetID());
 168     if(!aBuilder.NamedShape()->IsEmpty()) {
 169       Handle(TDataStd_Name) anAttr;
 170       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 171         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 172         if(!aName.empty()) {
 173           std::shared_ptr<Model_Document> aDoc =
 174             std::dynamic_pointer_cast<Model_Document>(document());
 175           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 176         }
 177       }
 178     }
 179   }
 180 }
 181
 182 void Model_BodyBuilder::storeGenerated(const GeomShapePtr& theFromShape,
 183   const GeomShapePtr& theToShape)
 184 {
 185   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 186   if (aData) {
 187     TDF_Label aShapeLab = aData->shapeLab();
 188     // clean builders
 189     clean();
 190     // store the new shape as primitive
 191     TNaming_Builder aBuilder(aShapeLab);
 192     if (!theFromShape || !theToShape)
 193       return;  // bad shape
 194     TopoDS_Shape aShapeBasis = theFromShape->impl<TopoDS_Shape>();
 195     if (aShapeBasis.IsNull())
 196       return;  // null shape inside
 197     TopoDS_Shape aShapeNew = theToShape->impl<TopoDS_Shape>();
 198     if (aShapeNew.IsNull())
 199       return;  // null shape inside
 200     aBuilder.Generated(aShapeBasis, aShapeNew);
 201     // register name
 202     if(!aBuilder.NamedShape()->IsEmpty()) {
 203       Handle(TDataStd_Name) anAttr;
 204       if(aBuilder.NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 205         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 206         if(!aName.empty()) {
 207           std::shared_ptr<Model_Document> aDoc =
 208             std::dynamic_pointer_cast<Model_Document>(document());
 209           aDoc->addNamingName(aBuilder.NamedShape()->Label(), aName);
 210         }
 211       }
 212     }
 213   }
 214 }
 215
 216 TNaming_Builder* Model_BodyBuilder::builder(const int theTag)
 217 {
 218   std::map<int, TNaming_Builder*>::iterator aFind = myBuilders.find(theTag);
 219   if (aFind == myBuilders.end()) {
 220     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 221     myBuilders[theTag] = new TNaming_Builder(
 222       theTag == 0 ? aData->shapeLab() : aData->shapeLab().FindChild(theTag));
 223     aFind = myBuilders.find(theTag);
 224   }
 225   return aFind->second;
 226 }
 227
 228 void Model_BodyBuilder::storeModified(const GeomShapePtr& theOldShape,
 229                                       const GeomShapePtr& theNewShape,
 230                                       const bool theIsCleanStored)
 231 {
 232   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 233   if (aData) {
 234     // clean builders
 235     if (theIsCleanStored) clean();
 236     // store the new shape as primitive
 237     TNaming_Builder* aBuilder = builder(0);
 238     if (!theOldShape || !theNewShape)
 239       return;  // bad shape
 240     TopoDS_Shape aShapeOld = theOldShape->impl<TopoDS_Shape>();
 241     if (aShapeOld.IsNull())
 242       return;  // null shape inside
 243     TopoDS_Shape aShapeNew = theNewShape->impl<TopoDS_Shape>();
 244     if (aShapeNew.IsNull())
 245       return;  // null shape inside
 246     aBuilder->Modify(aShapeOld, aShapeNew);
 247     if(!aBuilder->NamedShape()->IsEmpty()) {
 248       Handle(TDataStd_Name) anAttr;
 249       if(aBuilder->NamedShape()->Label().FindAttribute(TDataStd_Name::GetID(),anAttr)) {
 250         std::string aName (TCollection_AsciiString(anAttr->Get()).ToCString());
 251         if(!aName.empty()) {
 252           std::shared_ptr<Model_Document> aDoc =
 253             std::dynamic_pointer_cast<Model_Document>(document());
 254           aDoc->addNamingName(aBuilder->NamedShape()->Label(), aName);
 255         }
 256       }
 257     }
 258   }
 259 }
 260
 261 void  Model_BodyBuilder::storeWithoutNaming(const GeomShapePtr& theShape)
 262 {
 263   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 264   if (aData) {
 265     clean();
 266     if (!theShape.get())
 267       return; // bad shape
 268     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 269     if (aShape.IsNull())
 270       return;  // null shape inside
 271     TNaming_Builder aBuilder(aData->shapeLab());
 272     aBuilder.Select(aShape, aShape);
 273   }
 274 }
 275
 276 void Model_BodyBuilder::clean()
 277 {
 278   TDF_Label aLab = std::dynamic_pointer_cast<Model_Data>(data())->shapeLab();
 279   if (aLab.IsNull())
 280     return;
 281   std::map<int, TNaming_Builder*>::iterator aBuilder = myBuilders.begin();
 282   for(; aBuilder != myBuilders.end(); aBuilder++) {
 283     Handle(TNaming_NamedShape) aNS = aBuilder->second->NamedShape();
 284     delete aBuilder->second;
 285     if (!aNS.IsNull() && !aNS->Label().IsNull())
 286       aNS->Label().ForgetAttribute(TNaming_NamedShape::GetID());
 287   }
 288   myBuilders.clear();
 289   myPrimitivesNamesIndexMap.clear();
 290   // remove the old reference (if any)
 291   aLab.ForgetAttribute(TDF_Reference::GetID());
 292   myFreePrimitiveTag = PRIMITIVES_START_TAG;
 293   TDF_ChildIDIterator anEntriesIter(aLab, kEXTERNAL_SHAPE_REF, true);
 294   for(; anEntriesIter.More(); anEntriesIter.Next()) {
 295     anEntriesIter.Value()->Label().ForgetAttribute(kEXTERNAL_SHAPE_REF);
 296   }
 297 }
 298
 299 Model_BodyBuilder::~Model_BodyBuilder()
 300 {
 301   clean();
 302 }
 303
 304 void Model_BodyBuilder::buildName(const int theTag, const std::string& theName)
 305 {
 306   std::string aName = theName;
 307   std::string aPrefix = "";
 308   switch (theTag) {
 309     case GENERATED_VERTICES_TAG: aPrefix = aName.empty() ? "Generated_Vertex" : "GV:"; break;
 310     case GENERATED_EDGES_TAG:    aPrefix = aName.empty() ? "Generated_Edge"   : "GE:"; break;
 311     case GENERATED_FACES_TAG:    aPrefix = aName.empty() ? "Generated_Face"   : "GF:"; break;
 312     case MODIFIED_VERTICES_TAG:  aPrefix = aName.empty() ? "Modified_Vertex"  : "MV:"; break;
 313     case MODIFIED_EDGES_TAG:     aPrefix = aName.empty() ? "Modified_Edge"    : "ME:"; break;
 314     case MODIFIED_FACES_TAG:     aPrefix = aName.empty() ? "Modified_Face"    : "MF:"; break;
 315   }
 316   aName.insert(0, aPrefix);
 317
 318   TDataStd_Name::Set(builder(theTag)->NamedShape()->Label(), aName.c_str());
 319 }
 320 void Model_BodyBuilder::generated(const GeomShapePtr& theNewShape,
 321                                   const std::string& theName)
 322 {
 323   GeomShapePtr aResultShape = shape();
 324
 325   bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 326   if (aNewShapeIsNotInResultShape) {
 327     return;
 328   }
 329
 330   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 331   builder(myFreePrimitiveTag)->Generated(aShape);
 332   if (!theName.empty()) {
 333     std::string aName = theName;
 334     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 335       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 336       aName += "_" + std::to_string(++(anIndexTags.index));
 337       anIndexTags.tags.push_back(myFreePrimitiveTag);
 338       if (anIndexTags.index == 2) {
 339         buildName(anIndexTags.tags.front(), theName + "_1");
 340       }
 341     }
 342     else {
 343       IndexTags anIndexTags;
 344       anIndexTags.index = 1;
 345       anIndexTags.tags.push_back(myFreePrimitiveTag);
 346       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 347     }
 348
 349     buildName(myFreePrimitiveTag, aName);
 350   }
 351   ++myFreePrimitiveTag;
 352 }
 353
 354 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 355                                   const GeomShapePtr& theNewShape,
 356                                   const std::string& theName)
 357 {
 358   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 359   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 360   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 361   int aTag;
 362   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 363     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 364     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 365     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 366     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 367       builder(aTag)->Generated(anOldShape, anExp.Current());
 368     }
 369     buildName(aTag, theName);
 370   } else {
 371     aTag = getGenerationTag(aNewShape);
 372     if (aTag == INVALID_TAG) return;
 373     builder(aTag)->Generated(anOldShape, aNewShape);
 374     buildName(aTag, theName);
 375   }
 376 }
 377
 378 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 379                                  const GeomShapePtr& theNewShape,
 380                                  const std::string& theName)
 381 {
 382   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 383   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 384   int aTag = getModificationTag(aNewShape);
 385   if (aTag == INVALID_TAG) return;
 386   builder(aTag)->Modify(anOldShape, aNewShape);
 387   buildName(aTag, theName);
 388 }
 389
 390 void Model_BodyBuilder::deleted(const GeomShapePtr& theOldShape)
 391 {
 392   TopoDS_Shape aShape = theOldShape->impl<TopoDS_Shape>();
 393   builder(DELETED_TAG)->Delete(aShape);
 394 }
 395
 396 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 397                                           const GeomShapePtr& theOldShape,
 398                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 399                                           const GeomShapePtr& theShapesToExclude)
 400 {
 401   TopTools_MapOfShape anAlreadyProcessedShapes;
 402   GeomShapePtr aResultShape = shape();
 403   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 404        anExp.more();
 405        anExp.next())
 406   {
 407     GeomShapePtr anOldSubShape = anExp.current();
 408     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 409     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 410         || !theAlgo->isDeleted(anOldSubShape)
 411         || aResultShape->isSubShape(anOldSubShape, false)
 412         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 413     {
 414       continue;
 415     }
 416
 417     ListOfShape aNewShapes;
 418     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 419       theAlgo->modified(anOldSubShape, aNewShapes);
 420     }
 421
 422     if (aNewShapes.size() == 0
 423         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 424       builder(DELETED_TAG)->Delete(anOldSubShape_);
 425     }
 426   }
 427 }
 428
 429 static void removeBadShapes(ListOfShape& theShapes)
 430 {
 431   ListOfShape::iterator anIt = theShapes.begin();
 432   while (anIt != theShapes.end()) {
 433     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 434     bool aSkip = aNewShape.IsNull()
 435       || (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 436     if (aSkip) {
 437       ListOfShape::iterator aRemoveIt = anIt++;
 438       theShapes.erase(aRemoveIt);
 439     } else {
 440       ++anIt;
 441     }
 442   }
 443 }
 444
 445 // Keep only the shapes with minimal shape type
 446 static void keepTopLevelShapes(ListOfShape& theShapes,
 447                                const TopoDS_Shape& theRoot,
 448                                const GeomShapePtr& theResultShape = GeomShapePtr())
 449 {
 450   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 451   ListOfShape::iterator anIt = theShapes.begin();
 452   while (anIt != theShapes.end()) {
 453     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 454     bool aSkip = aNewShape.IsNull() ||
 455       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 456     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 457         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 458       ListOfShape::iterator aRemoveIt = anIt++;
 459       theShapes.erase(aRemoveIt);
 460     } else {
 461       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 462       if (aType < aKeepShapeType) {
 463         // found a shape with lesser shape type => remove all previous shapes
 464         aKeepShapeType = aType;
 465         theShapes.erase(theShapes.begin(), anIt);
 466         ++anIt;
 467       } else if (aType > aKeepShapeType) {
 468         // shapes with greater shape type should be removed from the list
 469         ListOfShape::iterator aRemoveIt = anIt++;
 470         theShapes.erase(aRemoveIt);
 471       } else
 472         ++anIt;
 473     }
 474   }
 475 }
 476
 477 // returns an ancestor shape-type that used for naming-definition of the sub-type
 478 TopAbs_ShapeEnum typeOfAncestor(const TopAbs_ShapeEnum theSubType) {
 479   if (theSubType == TopAbs_VERTEX)
 480     return TopAbs_EDGE;
 481   if (theSubType == TopAbs_EDGE)
 482     return TopAbs_FACE;
 483   return TopAbs_VERTEX; // bad case
 484 }
 485
 486 /// Checks that shape is presented in the tree with not-selection evolution
 487 /// In theOriginalLabel it returns label where NS of old sub-shape is stored
 488 static bool isShapeInTree(const TDF_Label& theAccess1, const TDF_Label& theAccess2,
 489   TopoDS_Shape theShape, TDF_Label& theOriginalLabel)
 490 {
 491   bool aResult = TNaming_Tool::HasLabel(theAccess1, theShape);
 492   if (aResult) { //check evolution and a label of this shape
 493     for(TNaming_SameShapeIterator aShapes(theShape, theAccess1); aShapes.More(); aShapes.Next())
 494     {
 495       static Handle(TNaming_NamedShape) aNS;
 496       if (aShapes.Label().FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 497         if (aNS->Evolution() != TNaming_SELECTED) {
 498           theOriginalLabel = aNS->Label();
 499           return true;
 500         }
 501       }
 502     }
 503   }
 504   if (!theAccess2.IsNull()) {
 505     static const TDF_Label anEmpty;
 506     return isShapeInTree(theAccess2, anEmpty, theShape, theOriginalLabel);
 507   }
 508   return false;
 509 }
 510
 511 /// Stores entry to the external label in the entries list at this label
 512 static void storeExternalReference(const TDF_Label& theExternal, const TDF_Label theThis)
 513 {
 514   // store information about the external document reference to restore old shape on open
 515   if (!theExternal.IsNull() && !theExternal.Root().IsEqual(theThis.Root())) {
 516     Handle(TDataStd_ExtStringList) anEntries;
 517     if (!theThis.FindAttribute(kEXTERNAL_SHAPE_REF, anEntries)) {
 518       anEntries = TDataStd_ExtStringList::Set(theThis, kEXTERNAL_SHAPE_REF);
 519     }
 520     TCollection_AsciiString anEntry;
 521     TDF_Tool::Entry(theExternal, anEntry);
 522     // check it already contains this entry
 523     TDataStd_ListOfExtendedString::Iterator anIter(anEntries->List());
 524     for(; anIter.More(); anIter.Next())
 525       if (anIter.Value() == anEntry)
 526         break;
 527     if (!anIter.More()) {
 528       anEntries->Append(anEntry);
 529     }
 530   }
 531 }
 532
 533 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 534                                            const GeomShapePtr& theOldShape,
 535                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 536                                            const std::string& theName)
 537 {
 538   GeomShapePtr aResultShape = shape();
 539   GeomShapePtr aShapeToExplore = theOldShape;
 540   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 541     // use optimized set of old shapes for this
 542     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 543                                                       aResultShape,
 544                                                       theShapeTypeToExplore);
 545     if (aCompound.get()) aShapeToExplore = aCompound;
 546   }
 547
 548   TopTools_MapOfShape anAlreadyProcessedShapes;
 549   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 550   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 551        anOldShapeExp.more();
 552        anOldShapeExp.next())
 553   {
 554     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 555     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 556
 557     // There is no sense to write history if shape already processed
 558     // or old shape does not exist in the document.
 559     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 560     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 561       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 562     TDF_Label anOriginalLabel;
 563     bool anOldSubShapeNotInTree =
 564       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 565     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 566       continue;
 567     }
 568
 569     // Get new shapes.
 570     ListOfShape aNewShapes;
 571     theAlgo->modified(anOldSubShape, aNewShapes);
 572
 573     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 574          aNewShapesIt != aNewShapes.cend();
 575          ++aNewShapesIt)
 576     {
 577       GeomShapePtr aNewShape = *aNewShapesIt;
 578       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 579       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 580
 581       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 582       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 583       if (aNewShapeIsSameAsOldShape
 584           || aNewShapeIsNotInResultShape)
 585       {
 586         continue;
 587       }
 588
 589       TNaming_Builder* aBuilder;
 590       if (aResultShape->isSame(aNewShape)) {
 591         // keep the modification evolution on the root level (2241 - history propagation issue)
 592         aBuilder = builder(0);
 593         TDF_Label aShapeLab = aBuilder->NamedShape()->Label();
 594         Handle(TDF_Reference) aRef;
 595         if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 596           // Store only in case if it does not have reference.
 597           continue;
 598         }
 599
 600         // Check if new shape was already stored.
 601         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 602
 603         if (!aBuilder->NamedShape().IsNull() &&
 604             ((isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_GENERATED)
 605               || (!isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_MODIFY)))
 606         {
 607           myBuilders.erase(0); // clear old builder to avoid different evolutions crash
 608           aBuilder = builder(0);
 609         }
 610       } else {
 611         int aTag = isGenerated ? getGenerationTag(aNewShape_)
 612                                : getModificationTag(aNewShape_);
 613         aBuilder = builder(aTag);
 614
 615         // Check if new shape was already stored.
 616         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 617
 618         buildName(aTag, theName);
 619       }
 620
 621       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 622                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 623       // store information about the external document reference to restore old shape on open
 624       storeExternalReference(anOriginalLabel, aBuilder->NamedShape()->Label());
 625     }
 626   }
 627 }
 628
 629 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 630                                             const GeomShapePtr& theOldShape,
 631                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 632                                             const std::string& theName)
 633 {
 634   GeomShapePtr aResultShape = shape();
 635   TopTools_MapOfShape anAlreadyProcessedShapes;
 636   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 637   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 638        anOldShapeExp.more();
 639        anOldShapeExp.next())
 640   {
 641     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 642     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 643
 644     // There is no sense to write history if shape already processed
 645     // or old shape does not exist in the document.
 646     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 647     TDF_Label anAccess2 = std::dynamic_pointer_cast<Model_Document>(
 648       ModelAPI_Session::get()->moduleDocument())->generalLabel();
 649     TDF_Label anOriginalLabel;
 650     bool anOldSubShapeNotInTree =
 651       !isShapeInTree(aData->shapeLab(), anAccess2, anOldSubShape_, anOriginalLabel);
 652     if (anOldSubShapeAlreadyProcessed || anOldSubShapeNotInTree) {
 653       continue;
 654     }
 655
 656     // Get new shapes.
 657     ListOfShape aNewShapes;
 658     theAlgo->generated(anOldSubShape, aNewShapes);
 659
 660     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 661
 662     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 663          aNewShapesIt != aNewShapes.cend();
 664          ++aNewShapesIt)
 665     {
 666       GeomShapePtr aNewShape = *aNewShapesIt;
 667       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 668
 669       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 670       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 671       if (aNewShapeIsSameAsOldShape
 672         || aNewShapeIsNotInResultShape)
 673       {
 674         continue;
 675       }
 676
 677       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 678       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 679         // TODO: This is a workaround. New shape should be only edge or face.
 680         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 681                                                                             : TopAbs_FACE;
 682         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 683         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 684           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 685           // store information about the external document reference to restore old shape on open
 686           storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 687         }
 688         buildName(aTag, theName);
 689       }
 690       else {
 691         int aTag = getGenerationTag(aNewShape_);
 692         if (aTag == INVALID_TAG) return;
 693         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 694         buildName(aTag, theName);
 695         // store information about the external document reference to restore old shape on open
 696         storeExternalReference(anOriginalLabel, builder(aTag)->NamedShape()->Label());
 697       }
 698     }
 699   }
 700 }
 701
 702 //=======================================================================
 703 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 704   const TopAbs_ShapeEnum        theGeneratedFrom,
 705   TopTools_DataMapOfShapeShape& theDangles)
 706 {
 707   theDangles.Clear();
 708   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 709   TopAbs_ShapeEnum GeneratedTo;
 710   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 711   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 712   else return Standard_False;
 713   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 714   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 715     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 716     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 717     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 718   }
 719   return theDangles.Extent();
 720 }
 721
 722 //=======================================================================
 723 void loadGeneratedDangleShapes(
 724   const TopoDS_Shape&      theShapeIn,
 725   const TopAbs_ShapeEnum   theGeneratedFrom,
 726   TNaming_Builder *        theBuilder)
 727 {
 728   TopTools_DataMapOfShapeShape dangles;
 729   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 730   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 731   for (; itr.More(); itr.Next())
 732     theBuilder->Generated(itr.Key(), itr.Value());
 733 }
 734
 735 //=======================================================================
 736 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 737                                        const std::string& theName)
 738 {
 739   if(theShape->isNull()) return;
 740   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 741   std::string aName;
 742   if (aShape.ShapeType() == TopAbs_SOLID) {
 743     TopExp_Explorer expl(aShape, TopAbs_FACE);
 744     for (; expl.More(); expl.Next()) {
 745       builder(myFreePrimitiveTag)->Generated(expl.Current());
 746       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 747       aName = theName + "_" + aStr.ToCString();
 748       buildName(myFreePrimitiveTag, aName);
 749       ++myFreePrimitiveTag;
 750     }
 751   }
 752   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 753     // load faces and all the free edges
 754     TopTools_IndexedMapOfShape Faces;
 755     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 756     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 757       TopExp_Explorer expl(aShape, TopAbs_FACE);
 758       for (; expl.More(); expl.Next()) {
 759         builder(myFreePrimitiveTag)->Generated(expl.Current());
 760         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 761         aName = theName + "_" + aStr.ToCString();
 762         buildName(myFreePrimitiveTag, aName);
 763         ++myFreePrimitiveTag;
 764       }
 765     }
 766     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 767     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 768     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 769     {
 770       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 771       if (aLL.Extent() < 2) {
 772         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 773           continue;
 774         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 775         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 776         aName = theName + "_" + aStr.ToCString();
 777         buildName(myFreePrimitiveTag, aName);
 778         ++myFreePrimitiveTag;
 779       } else {
 780         TopTools_ListIteratorOfListOfShape anIter(aLL);
 781         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 782         anIter.Next();
 783         if(aFace.IsEqual(anIter.Value())) {
 784           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 785           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 786           aName = theName + "_" + aStr.ToCString();
 787           buildName(myFreePrimitiveTag, aName);
 788           ++myFreePrimitiveTag;
 789         }
 790       }
 791     }
 792   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 793     TopTools_IndexedMapOfShape Edges;
 794     BRepTools::Map3DEdges(aShape, Edges);
 795     if (Edges.Extent() == 1) {
 796       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 797       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 798       for (; expl.More(); expl.Next()) {
 799         builder(myFreePrimitiveTag)->Generated(expl.Current());
 800         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 801         aName = theName + "_" + aStr.ToCString();
 802         buildName(myFreePrimitiveTag, aName);
 803         ++myFreePrimitiveTag;
 804       }
 805     } else {
 806       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 807       for (; expl.More(); expl.Next()) {
 808         builder(myFreePrimitiveTag)->Generated(expl.Current());
 809         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 810         aName = theName + "_" + aStr.ToCString();
 811         buildName(myFreePrimitiveTag, aName);
 812         ++myFreePrimitiveTag;
 813       }
 814       // and load generated vertices.
 815       TopTools_DataMapOfShapeShape generated;
 816       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 817       {
 818         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 819         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 820       }
 821     }
 822   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 823     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 824     for (; expl.More(); expl.Next()) {
 825       builder(myFreePrimitiveTag)->Generated(expl.Current());
 826       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 827       aName = theName + "_" + aStr.ToCString();
 828       buildName(myFreePrimitiveTag, aName);
 829       ++myFreePrimitiveTag;
 830     }
 831   }
 832 }
 833
 834 //=======================================================================
 835 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 836   TopTools_ListOfShape&   theList)
 837 {
 838   theList.Clear();
 839   // edges -> ancestor faces list
 840   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 841   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 842   // keeps the shapes which are already in the resulting list
 843   TopTools_MapOfShape alreadyThere;
 844   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 845   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 846
 847   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 848   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 849     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 850     if (ancestors.Extent() < 2)
 851       continue;
 852     Standard_Integer anID = 0;
 853     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 854       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 855     }
 856     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 857       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 858         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 859       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 860       for(; aSameEdge.More(); aSameEdge.Next()) {
 861         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 862           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 863         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 864           break;
 865
 866         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 867         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 868           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 869           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 870             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 871               break;
 872           }
 873           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 874             break;
 875         }
 876         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 877           if (alreadyThere.Add(aSameEdge.Value()))
 878             theList.Append(aSameEdge.Value());
 879           if (alreadyThere.Add(anAncestorsIter.Key()))
 880             theList.Append(anAncestorsIter.Key());
 881         }
 882       }
 883     } else { // ID is unique, just add this edge
 884       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 885     }
 886     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 887   }
 888   return theList.Extent();
 889 }
 890
 891 //=======================================================================
 892 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 893 {
 894   if(theShape->isNull()) return;
 895   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 896   std::string aName;
 897   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 898     TopoDS_Iterator itr(aShape);
 899     for (; itr.More(); itr.Next()) {
 900       builder(myFreePrimitiveTag)->Generated(itr.Value());
 901       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 902       aName = theName + "_" + aStr.ToCString();
 903       buildName(myFreePrimitiveTag, aName);
 904       ++myFreePrimitiveTag;
 905       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 906         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 907       {
 908         GeomShapePtr itrShape(new GeomAPI_Shape());
 909         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 910         loadFirstLevel(itrShape, theName);
 911       } else {
 912         GeomShapePtr itrShape(new GeomAPI_Shape());
 913         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 914         loadNextLevels(itrShape, theName);
 915       }
 916     }
 917   } else {
 918     GeomShapePtr itrShape(new GeomAPI_Shape());
 919     itrShape->setImpl(new TopoDS_Shape(aShape));
 920     loadNextLevels(itrShape, theName);
 921   }
 922   TopTools_ListOfShape   aList;
 923   if(findAmbiguities(aShape, aList)) {
 924     TopTools_ListIteratorOfListOfShape it(aList);
 925     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 926       builder(myFreePrimitiveTag)->Generated(it.Value());
 927       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 928       aName = theName + "_" + aStr.ToCString();
 929       buildName(myFreePrimitiveTag, aName);
 930     }
 931   }
 932 }
 933
 934 //=======================================================================
 935 void Model_BodyBuilder::loadDisconnectedEdges(GeomShapePtr theShape, const std::string& theName)
 936 {
 937   if(theShape->isNull()) return;
 938   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 939   TopTools_DataMapOfShapeListOfShape edgeNaborFaces;
 940   TopTools_ListOfShape empty;
 941   TopExp_Explorer explF(aShape, TopAbs_FACE);
 942   for (; explF.More(); explF.Next()) {
 943     const TopoDS_Shape& aFace = explF.Current();
 944     TopExp_Explorer explV(aFace, TopAbs_EDGE);
 945     for (; explV.More(); explV.Next()) {
 946       const TopoDS_Shape& anEdge = explV.Current();
 947       if (!edgeNaborFaces.IsBound(anEdge)) edgeNaborFaces.Bind(anEdge, empty);
 948       Standard_Boolean faceIsNew = Standard_True;
 949       TopTools_ListIteratorOfListOfShape itrF(edgeNaborFaces.Find(anEdge));
 950       for (; itrF.More(); itrF.Next()) {
 951         if (itrF.Value().IsSame(aFace)) {
 952           faceIsNew = Standard_False;
 953           break;
 954         }
 955       }
 956       if (faceIsNew)
 957         edgeNaborFaces.ChangeFind(anEdge).Append(aFace);
 958     }
 959   }
 960
 961   TopTools_MapOfShape anEdgesToDelete;
 962   TopExp_Explorer anEx(aShape,TopAbs_EDGE);
 963   std::string aName;
 964   for(;anEx.More();anEx.Next()) {
 965     Standard_Boolean aC0 = Standard_False;
 966     TopoDS_Shape anEdge1 = anEx.Current();
 967     if (edgeNaborFaces.IsBound(anEdge1)) {
 968       const TopTools_ListOfShape& aList1 = edgeNaborFaces.Find(anEdge1);
 969       if (aList1.Extent()<2) continue;
 970       TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(edgeNaborFaces);
 971       for (; itr.More(); itr.Next()) {
 972         TopoDS_Shape anEdge2 = itr.Key();
 973         if(anEdgesToDelete.Contains(anEdge2)) continue;
 974         if (anEdge1.IsSame(anEdge2)) continue;
 975         const TopTools_ListOfShape& aList2 = itr.Value();
 976         // compare lists of the neighbor faces of edge1 and edge2
 977         if (aList1.Extent() == aList2.Extent()) {
 978           Standard_Integer aMatches = 0;
 979           for(TopTools_ListIteratorOfListOfShape aLIter1(aList1);aLIter1.More();aLIter1.Next())
 980             for(TopTools_ListIteratorOfListOfShape aLIter2(aList2);aLIter2.More();aLIter2.Next())
 981               if (aLIter1.Value().IsSame(aLIter2.Value())) aMatches++;
 982           if (aMatches == aList1.Extent()) {
 983             aC0=Standard_True;
 984             builder(myFreePrimitiveTag)->Generated(anEdge2);
 985             anEdgesToDelete.Add(anEdge2);
 986             TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 987             aName = theName + "_" + aStr.ToCString();
 988             buildName(myFreePrimitiveTag, aName);
 989             ++myFreePrimitiveTag;
 990           }
 991         }
 992       }
 993       TopTools_MapIteratorOfMapOfShape itDelete(anEdgesToDelete);
 994       for(;itDelete.More();itDelete.Next())
 995         edgeNaborFaces.UnBind(itDelete.Key());
 996       edgeNaborFaces.UnBind(anEdge1);
 997     }
 998     if (aC0) {
 999       builder(myFreePrimitiveTag)->Generated(anEdge1);
1000       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
1001       aName = theName + "_" + aStr.ToCString();
1002       buildName(myFreePrimitiveTag, aName);
1003       ++myFreePrimitiveTag;
1004     }
1005   }
1006 }
1007
1008 void Model_BodyBuilder::loadDisconnectedVertexes(GeomShapePtr theShape,
1009                                                  const std::string& theName)
1010 {
1011   if(theShape->isNull()) return;
1012   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
1013   TopTools_DataMapOfShapeListOfShape vertexNaborEdges;
1014   TopTools_ListOfShape empty;
1015   TopExp_Explorer explF(aShape, TopAbs_EDGE);
1016   for (; explF.More(); explF.Next()) {
1017     const TopoDS_Shape& anEdge = explF.Current();
1018     TopExp_Explorer explV(anEdge, TopAbs_VERTEX);
1019     for (; explV.More(); explV.Next()) {
1020       const TopoDS_Shape& aVertex = explV.Current();
1021       if (!vertexNaborEdges.IsBound(aVertex)) vertexNaborEdges.Bind(aVertex, empty);
1022       Standard_Boolean faceIsNew = Standard_True;
1023       TopTools_ListIteratorOfListOfShape itrF(vertexNaborEdges.Find(aVertex));
1024       for (; itrF.More(); itrF.Next()) {
1025         if (itrF.Value().IsSame(anEdge)) {
1026           faceIsNew = Standard_False;
1027           break;
1028         }
1029       }
1030       if (faceIsNew) {
1031         vertexNaborEdges.ChangeFind(aVertex).Append(anEdge);
1032       }
1033     }
1034   }
1035   std::string aName;
1036   TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(vertexNaborEdges);
1037   for (; itr.More(); itr.Next()) {
1038     const TopTools_ListOfShape& naborEdges = itr.Value();
1039     if (naborEdges.Extent() < 2) {
1040       builder(myFreePrimitiveTag)->Generated(itr.Key());
1041       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
1042       aName = theName + "_" + aStr.ToCString();
1043       buildName(myFreePrimitiveTag, aName);
1044       ++myFreePrimitiveTag;
1045     }
1046   }
1047 }
1048
1049 GeomShapePtr Model_BodyBuilder::shape()
1050 {
1051   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
1052   if (aData && aData->isValid()) {
1053     TDF_Label aShapeLab = aData->shapeLab();
1054     Handle(TDF_Reference) aRef;
1055     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
1056       aShapeLab = aRef->Get();
1057     }
1058     Handle(TNaming_NamedShape) aName;
1059     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
1060       TopoDS_Shape aShape = aName->Get();
1061       if (!aShape.IsNull()) {
1062         GeomShapePtr aRes(new GeomAPI_Shape);
1063         aRes->setImpl(new TopoDS_Shape(aShape));
1064         return aRes;
1065       }
1066     }
1067   }
1068   return GeomShapePtr();
1069 }
1070
1071 bool Model_BodyBuilder::isLatestEqual(const GeomShapePtr& theShape)
1072 {
1073   if (theShape.get()) {
1074     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
1075     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
1076     if (aData) {
1077       TDF_Label aShapeLab = aData->shapeLab();
1078       Handle(TNaming_NamedShape) aName;
1079       if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
1080         TopoDS_Shape aLatest = TNaming_Tool::CurrentShape(aName);
1081         if (aLatest.IsNull())
1082           return false;
1083         if (aLatest.IsEqual(aShape))
1084           return true;
1085         // check sub-shapes for comp-solids:
1086         for (TopExp_Explorer anExp(aShape, aLatest.ShapeType()); anExp.More(); anExp.Next()) {
1087           if (aLatest.IsEqual(anExp.Current()))
1088             return true;
1089         }
1090       }
1091     }
1092   }
1093   return false;
1094 }