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   GeomShapePtr aResultShape = shape();
 315
 316   bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(theNewShape, false);
 317   if (aNewShapeIsNotInResultShape) {
 318     return;
 319   }
 320
 321   TopoDS_Shape aShape = theNewShape->impl<TopoDS_Shape>();
 322   builder(myFreePrimitiveTag)->Generated(aShape);
 323   if (!theName.empty()) {
 324     std::string aName = theName;
 325     if (myPrimitivesNamesIndexMap.find(theName) != myPrimitivesNamesIndexMap.end()) {
 326       IndexTags& anIndexTags = myPrimitivesNamesIndexMap.find(theName)->second;
 327       aName += "_" + std::to_string(++(anIndexTags.index));
 328       anIndexTags.tags.push_back(myFreePrimitiveTag);
 329       if (anIndexTags.index == 2) {
 330         buildName(anIndexTags.tags.front(), theName + "_1");
 331       }
 332     }
 333     else {
 334       IndexTags anIndexTags;
 335       anIndexTags.index = 1;
 336       anIndexTags.tags.push_back(myFreePrimitiveTag);
 337       myPrimitivesNamesIndexMap[theName] = anIndexTags;
 338     }
 339
 340     buildName(myFreePrimitiveTag, aName);
 341   }
 342   ++myFreePrimitiveTag;
 343 }
 344
 345 void Model_BodyBuilder::generated(const GeomShapePtr& theOldShape,
 346                                   const GeomShapePtr& theNewShape,
 347                                   const std::string& theName)
 348 {
 349   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 350   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 351   TopAbs_ShapeEnum aNewShapeType = aNewShape.ShapeType();
 352   int aTag;
 353   if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 354     // TODO: This is a workaround. New shape should be only vertex, edge or face.
 355     TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE : TopAbs_FACE;
 356     aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 357     for (TopExp_Explorer anExp(aNewShape, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 358       builder(aTag)->Generated(anOldShape, anExp.Current());
 359     }
 360     buildName(aTag, theName);
 361   } else {
 362     aTag = getGenerationTag(aNewShape);
 363     if (aTag == INVALID_TAG) return;
 364     builder(aTag)->Generated(anOldShape, aNewShape);
 365     buildName(aTag, theName);
 366   }
 367 }
 368
 369 void Model_BodyBuilder::modified(const GeomShapePtr& theOldShape,
 370                                  const GeomShapePtr& theNewShape,
 371                                  const std::string& theName)
 372 {
 373   TopoDS_Shape anOldShape = theOldShape->impl<TopoDS_Shape>();
 374   TopoDS_Shape aNewShape = theNewShape->impl<TopoDS_Shape>();
 375   int aTag = getModificationTag(aNewShape);
 376   if (aTag == INVALID_TAG) return;
 377   builder(aTag)->Modify(anOldShape, aNewShape);
 378   buildName(aTag, theName);
 379 }
 380
 381 void Model_BodyBuilder::deleted(const GeomShapePtr& theOldShape)
 382 {
 383   TopoDS_Shape aShape = theOldShape->impl<TopoDS_Shape>();
 384   builder(DELETED_TAG)->Delete(aShape);
 385 }
 386
 387 void Model_BodyBuilder::loadDeletedShapes(const GeomMakeShapePtr& theAlgo,
 388                                           const GeomShapePtr& theOldShape,
 389                                           const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 390                                           const GeomShapePtr& theShapesToExclude)
 391 {
 392   TopTools_MapOfShape anAlreadyProcessedShapes;
 393   GeomShapePtr aResultShape = shape();
 394   for (GeomAPI_ShapeExplorer anExp(theOldShape, theShapeTypeToExplore);
 395        anExp.more();
 396        anExp.next())
 397   {
 398     GeomShapePtr anOldSubShape = anExp.current();
 399     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 400     if (!anAlreadyProcessedShapes.Add(anOldSubShape_)
 401         || !theAlgo->isDeleted(anOldSubShape)
 402         || aResultShape->isSubShape(anOldSubShape, false)
 403         || (theShapesToExclude.get() && theShapesToExclude->isSubShape(anOldSubShape, false)))
 404     {
 405       continue;
 406     }
 407
 408     ListOfShape aNewShapes;
 409     if (BRepTools_History::IsSupportedType(anOldSubShape_)) { // to avoid crash in #2572
 410       theAlgo->modified(anOldSubShape, aNewShapes);
 411     }
 412
 413     if (aNewShapes.size() == 0
 414         || (aNewShapes.size() == 1 && aNewShapes.front()->isSame(anOldSubShape))) {
 415       builder(DELETED_TAG)->Delete(anOldSubShape_);
 416     }
 417   }
 418 }
 419
 420 static void removeBadShapes(ListOfShape& theShapes)
 421 {
 422   ListOfShape::iterator anIt = theShapes.begin();
 423   while (anIt != theShapes.end()) {
 424     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 425     bool aSkip = aNewShape.IsNull()
 426       || (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 427     if (aSkip) {
 428       ListOfShape::iterator aRemoveIt = anIt++;
 429       theShapes.erase(aRemoveIt);
 430     } else {
 431       ++anIt;
 432     }
 433   }
 434 }
 435
 436 // Keep only the shapes with minimal shape type
 437 static void keepTopLevelShapes(ListOfShape& theShapes,
 438                                const TopoDS_Shape& theRoot,
 439                                const GeomShapePtr& theResultShape = GeomShapePtr())
 440 {
 441   GeomAPI_Shape::ShapeType aKeepShapeType = GeomAPI_Shape::SHAPE;
 442   ListOfShape::iterator anIt = theShapes.begin();
 443   while (anIt != theShapes.end()) {
 444     TopoDS_Shape aNewShape = (*anIt)->impl<TopoDS_Shape>();
 445     bool aSkip = aNewShape.IsNull() ||
 446       (aNewShape.ShapeType() == TopAbs_EDGE && BRep_Tool::Degenerated(TopoDS::Edge(aNewShape)));
 447     if (aSkip || theRoot.IsSame(aNewShape) || (theResultShape &&
 448         (!theResultShape->isSubShape(*anIt, false) || theResultShape->isSame(*anIt)))) {
 449       ListOfShape::iterator aRemoveIt = anIt++;
 450       theShapes.erase(aRemoveIt);
 451     } else {
 452       GeomAPI_Shape::ShapeType aType = (*anIt)->shapeType();
 453       if (aType < aKeepShapeType) {
 454         // found a shape with lesser shape type => remove all previous shapes
 455         aKeepShapeType = aType;
 456         theShapes.erase(theShapes.begin(), anIt);
 457         ++anIt;
 458       } else if (aType > aKeepShapeType) {
 459         // shapes with greater shape type should be removed from the list
 460         ListOfShape::iterator aRemoveIt = anIt++;
 461         theShapes.erase(aRemoveIt);
 462       } else
 463         ++anIt;
 464     }
 465   }
 466 }
 467
 468 // returns an ancestor shape-type thaty used for naming-definition of the sub-type
 469 TopAbs_ShapeEnum typeOfAncestor(const TopAbs_ShapeEnum theSubType) {
 470   if (theSubType == TopAbs_VERTEX)
 471     return TopAbs_EDGE;
 472   if (theSubType == TopAbs_EDGE)
 473     return TopAbs_FACE;
 474   return TopAbs_VERTEX; // bad case
 475 }
 476
 477 void Model_BodyBuilder::loadModifiedShapes(const GeomMakeShapePtr& theAlgo,
 478                                            const GeomShapePtr& theOldShape,
 479                                            const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 480                                            const std::string& theName)
 481 {
 482   GeomShapePtr aResultShape = shape();
 483   GeomShapePtr aShapeToExplore = theOldShape;
 484   if (theAlgo->isNewShapesCollected(theOldShape, theShapeTypeToExplore)) {
 485     // use optimized set of old shapes for this
 486     GeomShapePtr aCompound = theAlgo->oldShapesForNew(theOldShape,
 487                                                       aResultShape,
 488                                                       theShapeTypeToExplore);
 489     if (aCompound.get()) aShapeToExplore = aCompound;
 490   }
 491
 492   TopTools_MapOfShape anAlreadyProcessedShapes;
 493   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 494   for (GeomAPI_ShapeExplorer anOldShapeExp(aShapeToExplore, theShapeTypeToExplore);
 495        anOldShapeExp.more();
 496        anOldShapeExp.next())
 497   {
 498     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 499     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 500
 501     // There is no sense to write history if shape already processed
 502     // or old shape does not exist in the document.
 503     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 504     bool anOldSubShapeNotInTree = TNaming_Tool::NamedShape(anOldSubShape_, aData->shapeLab())
 505                                   .IsNull();
 506     if (anOldSubShapeAlreadyProcessed
 507         || anOldSubShapeNotInTree)
 508     {
 509       continue;
 510     }
 511
 512     // Get new shapes.
 513     ListOfShape aNewShapes;
 514     theAlgo->modified(anOldSubShape, aNewShapes);
 515
 516     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 517          aNewShapesIt != aNewShapes.cend();
 518          ++aNewShapesIt)
 519     {
 520       GeomShapePtr aNewShape = *aNewShapesIt;
 521       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 522       bool isGenerated = anOldSubShape_.ShapeType() != aNewShape_.ShapeType();
 523
 524       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 525       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 526       if (aNewShapeIsSameAsOldShape
 527           || aNewShapeIsNotInResultShape)
 528       {
 529         continue;
 530       }
 531
 532       TNaming_Builder* aBuilder;
 533       if (aResultShape->isSame(aNewShape)) {
 534         // keep the modification evolution on the root level (2241 - history propagation issue)
 535         aBuilder = builder(0);
 536         TDF_Label aShapeLab = aBuilder->NamedShape()->Label();
 537         Handle(TDF_Reference) aRef;
 538         if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 539           // Store only in case if it does not have reference.
 540           continue;
 541         }
 542
 543         // Check if new shape was already stored.
 544         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 545
 546         if (!aBuilder->NamedShape().IsNull() &&
 547             ((isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_GENERATED)
 548               || (!isGenerated && aBuilder->NamedShape()->Evolution() != TNaming_MODIFY)))
 549         {
 550           myBuilders.erase(0); // clear old builder to avoid different evolutions crash
 551           aBuilder = builder(0);
 552         }
 553       } else {
 554         int aTag = isGenerated ? getGenerationTag(aNewShape_)
 555                                : getModificationTag(aNewShape_);
 556         aBuilder = builder(aTag);
 557
 558         // Check if new shape was already stored.
 559         if (isAlreadyStored(aBuilder, anOldSubShape_, aNewShape_)) continue;
 560
 561         buildName(aTag, theName);
 562       }
 563
 564       isGenerated ? aBuilder->Generated(anOldSubShape_, aNewShape_)
 565                   : aBuilder->Modify(anOldSubShape_, aNewShape_);
 566     }
 567   }
 568 }
 569
 570 void Model_BodyBuilder::loadGeneratedShapes(const GeomMakeShapePtr& theAlgo,
 571                                             const GeomShapePtr& theOldShape,
 572                                             const GeomAPI_Shape::ShapeType theShapeTypeToExplore,
 573                                             const std::string& theName)
 574 {
 575   GeomShapePtr aResultShape = shape();
 576   TopTools_MapOfShape anAlreadyProcessedShapes;
 577   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 578   for (GeomAPI_ShapeExplorer anOldShapeExp(theOldShape, theShapeTypeToExplore);
 579        anOldShapeExp.more();
 580        anOldShapeExp.next())
 581   {
 582     GeomShapePtr anOldSubShape = anOldShapeExp.current();
 583     const TopoDS_Shape& anOldSubShape_ = anOldSubShape->impl<TopoDS_Shape>();
 584
 585     // There is no sense to write history if shape already processed
 586     // or old shape does not exist in the document.
 587     bool anOldSubShapeAlreadyProcessed = !anAlreadyProcessedShapes.Add(anOldSubShape_);
 588     bool anOldSubShapeNotInTree = TNaming_Tool::NamedShape(anOldSubShape_, aData->shapeLab())
 589                                   .IsNull();
 590     if (anOldSubShapeAlreadyProcessed
 591         || anOldSubShapeNotInTree)
 592     {
 593       continue;
 594     }
 595
 596     // Get new shapes.
 597     ListOfShape aNewShapes;
 598     theAlgo->generated(anOldSubShape, aNewShapes);
 599
 600     keepTopLevelShapes(aNewShapes, anOldSubShape_);
 601
 602     for (ListOfShape::const_iterator aNewShapesIt = aNewShapes.cbegin();
 603          aNewShapesIt != aNewShapes.cend();
 604          ++aNewShapesIt)
 605     {
 606       GeomShapePtr aNewShape = *aNewShapesIt;
 607       const TopoDS_Shape& aNewShape_ = aNewShape->impl<TopoDS_Shape>();
 608
 609       bool aNewShapeIsSameAsOldShape = anOldSubShape->isSame(aNewShape);
 610       bool aNewShapeIsNotInResultShape = !aResultShape->isSubShape(aNewShape, false);
 611       if (aNewShapeIsSameAsOldShape
 612         || aNewShapeIsNotInResultShape)
 613       {
 614         continue;
 615       }
 616
 617       TopAbs_ShapeEnum aNewShapeType = aNewShape_.ShapeType();
 618       if (aNewShapeType == TopAbs_WIRE || aNewShapeType == TopAbs_SHELL) {
 619         // TODO: This is a workaround. New shape should be only edge or face.
 620         TopAbs_ShapeEnum aShapeTypeToExplore = aNewShapeType == TopAbs_WIRE ? TopAbs_EDGE
 621                                                                             : TopAbs_FACE;
 622         int aTag = TopAbs_WIRE ? GENERATED_EDGES_TAG : GENERATED_FACES_TAG;
 623         for (TopExp_Explorer anExp(aNewShape_, aShapeTypeToExplore); anExp.More(); anExp.Next()) {
 624           builder(aTag)->Generated(anOldSubShape_, anExp.Current());
 625         }
 626         buildName(aTag, theName);
 627       }
 628       else {
 629         int aTag = getGenerationTag(aNewShape_);
 630         if (aTag == INVALID_TAG) return;
 631         builder(aTag)->Generated(anOldSubShape_, aNewShape_);
 632         buildName(aTag, theName);
 633       }
 634     }
 635   }
 636 }
 637
 638 //=======================================================================
 639 int getDangleShapes(const TopoDS_Shape&           theShapeIn,
 640   const TopAbs_ShapeEnum        theGeneratedFrom,
 641   TopTools_DataMapOfShapeShape& theDangles)
 642 {
 643   theDangles.Clear();
 644   TopTools_IndexedDataMapOfShapeListOfShape subShapeAndAncestors;
 645   TopAbs_ShapeEnum GeneratedTo;
 646   if (theGeneratedFrom == TopAbs_FACE) GeneratedTo = TopAbs_EDGE;
 647   else if (theGeneratedFrom == TopAbs_EDGE) GeneratedTo = TopAbs_VERTEX;
 648   else return Standard_False;
 649   TopExp::MapShapesAndAncestors(theShapeIn, GeneratedTo, theGeneratedFrom, subShapeAndAncestors);
 650   for (Standard_Integer i = 1; i <= subShapeAndAncestors.Extent(); i++) {
 651     const TopoDS_Shape& mayBeDangle = subShapeAndAncestors.FindKey(i);
 652     const TopTools_ListOfShape& ancestors = subShapeAndAncestors.FindFromIndex(i);
 653     if (ancestors.Extent() == 1) theDangles.Bind(ancestors.First(), mayBeDangle);
 654   }
 655   return theDangles.Extent();
 656 }
 657
 658 //=======================================================================
 659 void loadGeneratedDangleShapes(
 660   const TopoDS_Shape&      theShapeIn,
 661   const TopAbs_ShapeEnum   theGeneratedFrom,
 662   TNaming_Builder *        theBuilder)
 663 {
 664   TopTools_DataMapOfShapeShape dangles;
 665   if (!getDangleShapes(theShapeIn, theGeneratedFrom, dangles)) return;
 666   TopTools_DataMapIteratorOfDataMapOfShapeShape itr(dangles);
 667   for (; itr.More(); itr.Next())
 668     theBuilder->Generated(itr.Key(), itr.Value());
 669 }
 670
 671 //=======================================================================
 672 void Model_BodyBuilder::loadNextLevels(GeomShapePtr theShape,
 673                                        const std::string& theName)
 674 {
 675   if(theShape->isNull()) return;
 676   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 677   std::string aName;
 678   if (aShape.ShapeType() == TopAbs_SOLID) {
 679     TopExp_Explorer expl(aShape, TopAbs_FACE);
 680     for (; expl.More(); expl.Next()) {
 681       builder(myFreePrimitiveTag)->Generated(expl.Current());
 682       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 683       aName = theName + "_" + aStr.ToCString();
 684       buildName(myFreePrimitiveTag, aName);
 685       ++myFreePrimitiveTag;
 686     }
 687   }
 688   else if (aShape.ShapeType() == TopAbs_SHELL || aShape.ShapeType() == TopAbs_FACE) {
 689     // load faces and all the free edges
 690     TopTools_IndexedMapOfShape Faces;
 691     TopExp::MapShapes(aShape, TopAbs_FACE, Faces);
 692     if (Faces.Extent() > 1 || (aShape.ShapeType() == TopAbs_SHELL && Faces.Extent() == 1)) {
 693       TopExp_Explorer expl(aShape, TopAbs_FACE);
 694       for (; expl.More(); expl.Next()) {
 695         builder(myFreePrimitiveTag)->Generated(expl.Current());
 696         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 697         aName = theName + "_" + aStr.ToCString();
 698         buildName(myFreePrimitiveTag, aName);
 699         ++myFreePrimitiveTag;
 700       }
 701     }
 702     TopTools_IndexedDataMapOfShapeListOfShape anEdgeAndNeighbourFaces;
 703     TopExp::MapShapesAndAncestors(aShape, TopAbs_EDGE, TopAbs_FACE, anEdgeAndNeighbourFaces);
 704     for (Standard_Integer i = 1; i <= anEdgeAndNeighbourFaces.Extent(); i++)
 705     {
 706       const TopTools_ListOfShape& aLL = anEdgeAndNeighbourFaces.FindFromIndex(i);
 707       if (aLL.Extent() < 2) {
 708         if (BRep_Tool::Degenerated(TopoDS::Edge(anEdgeAndNeighbourFaces.FindKey(i))))
 709           continue;
 710         builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 711         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 712         aName = theName + "_" + aStr.ToCString();
 713         buildName(myFreePrimitiveTag, aName);
 714         ++myFreePrimitiveTag;
 715       } else {
 716         TopTools_ListIteratorOfListOfShape anIter(aLL);
 717         const TopoDS_Face& aFace = TopoDS::Face(anIter.Value());
 718         anIter.Next();
 719         if(aFace.IsEqual(anIter.Value())) {
 720           builder(myFreePrimitiveTag)->Generated(anEdgeAndNeighbourFaces.FindKey(i));
 721           TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 722           aName = theName + "_" + aStr.ToCString();
 723           buildName(myFreePrimitiveTag, aName);
 724           ++myFreePrimitiveTag;
 725         }
 726       }
 727     }
 728   } else if (aShape.ShapeType() == TopAbs_WIRE) {
 729     TopTools_IndexedMapOfShape Edges;
 730     BRepTools::Map3DEdges(aShape, Edges);
 731     if (Edges.Extent() == 1) {
 732       builder(myFreePrimitiveTag++)->Generated(Edges.FindKey(1));
 733       TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 734       for (; expl.More(); expl.Next()) {
 735         builder(myFreePrimitiveTag)->Generated(expl.Current());
 736         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 737         aName = theName + "_" + aStr.ToCString();
 738         buildName(myFreePrimitiveTag, aName);
 739         ++myFreePrimitiveTag;
 740       }
 741     } else {
 742       TopExp_Explorer expl(aShape, TopAbs_EDGE);
 743       for (; expl.More(); expl.Next()) {
 744         builder(myFreePrimitiveTag)->Generated(expl.Current());
 745         TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 746         aName = theName + "_" + aStr.ToCString();
 747         buildName(myFreePrimitiveTag, aName);
 748         ++myFreePrimitiveTag;
 749       }
 750       // and load generated vertices.
 751       TopTools_DataMapOfShapeShape generated;
 752       if (getDangleShapes(aShape, TopAbs_EDGE, generated))
 753       {
 754         TNaming_Builder* pBuilder = builder(myFreePrimitiveTag++);
 755         loadGeneratedDangleShapes(aShape, TopAbs_EDGE, pBuilder);
 756       }
 757     }
 758   } else if (aShape.ShapeType() == TopAbs_EDGE) {
 759     TopExp_Explorer expl(aShape, TopAbs_VERTEX);
 760     for (; expl.More(); expl.Next()) {
 761       builder(myFreePrimitiveTag)->Generated(expl.Current());
 762       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 763       aName = theName + "_" + aStr.ToCString();
 764       buildName(myFreePrimitiveTag, aName);
 765       ++myFreePrimitiveTag;
 766     }
 767   }
 768 }
 769
 770 //=======================================================================
 771 int findAmbiguities(const TopoDS_Shape&           theShapeIn,
 772   TopTools_ListOfShape&   theList)
 773 {
 774   theList.Clear();
 775   // edges -> ancestor faces list
 776   TopTools_IndexedDataMapOfShapeListOfShape aSubShapeAndAncestors;
 777   TopExp::MapShapesAndAncestors(theShapeIn, TopAbs_EDGE, TopAbs_FACE, aSubShapeAndAncestors);
 778   // keeps the shapes which are already in the resulting list
 779   TopTools_MapOfShape alreadyThere;
 780   // map from faces identifier (combination of hash-codes) to list of edges produced such ID
 781   NCollection_DataMap<int, NCollection_List<TopoDS_Shape> > aFacesIDs;
 782
 783   TopTools_IndexedDataMapOfShapeListOfShape::Iterator anAncestorsIter(aSubShapeAndAncestors);
 784   for (; anAncestorsIter.More(); anAncestorsIter.Next()) {
 785     const TopTools_ListOfShape& ancestors = anAncestorsIter.Value();
 786     if (ancestors.Extent() < 2)
 787       continue;
 788     Standard_Integer anID = 0;
 789     for(TopTools_ListIteratorOfListOfShape aFaceIt(ancestors); aFaceIt.More(); aFaceIt.Next()) {
 790       anID ^= HashCode(aFaceIt.ChangeValue(), 1990657); // Pierpont prime
 791     }
 792     if (aFacesIDs.IsBound(anID)) { // there found same edge, check they really have same faces
 793       const NCollection_List<TopoDS_Shape>& aSameFaces1 =
 794         aSubShapeAndAncestors.FindFromKey(anAncestorsIter.Key());
 795       NCollection_List<TopoDS_Shape>::Iterator aSameEdge(aFacesIDs.ChangeFind(anID));
 796       for(; aSameEdge.More(); aSameEdge.Next()) {
 797         const NCollection_List<TopoDS_Shape>& aSameFaces2 =
 798           aSubShapeAndAncestors.FindFromKey(aSameEdge.Value());
 799         if (aSameFaces2.Extent() != aSameFaces1.Extent()) // the number of faces is different
 800           break;
 801
 802         NCollection_List<TopoDS_Shape>::Iterator aFaceIter1(aSameFaces1);
 803         for(; aFaceIter1.More(); aFaceIter1.Next()) {
 804           NCollection_List<TopoDS_Shape>::Iterator aFaceIter2(aSameFaces2);
 805           for(; aFaceIter2.More(); aFaceIter2.Next()) {
 806             if (aFaceIter1.Value().IsSame(aFaceIter2.Value()))
 807               break;
 808           }
 809           if (!aFaceIter2.More()) // aFaceIter1 contains a face, which is not in aFaceIter2
 810             break;
 811         }
 812         if (!aFaceIter1.More()) { // all the faces are same => put to the result
 813           if (alreadyThere.Add(aSameEdge.Value()))
 814             theList.Append(aSameEdge.Value());
 815           if (alreadyThere.Add(anAncestorsIter.Key()))
 816             theList.Append(anAncestorsIter.Key());
 817         }
 818       }
 819     } else { // ID is unique, just add this edge
 820       aFacesIDs.Bind(anID, NCollection_List<TopoDS_Shape>());
 821     }
 822     aFacesIDs.ChangeFind(anID).Append(anAncestorsIter.Key()); // add to the list anyway
 823   }
 824   return theList.Extent();
 825 }
 826
 827 //=======================================================================
 828 void Model_BodyBuilder::loadFirstLevel(GeomShapePtr theShape, const std::string& theName)
 829 {
 830   if(theShape->isNull()) return;
 831   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 832   std::string aName;
 833   if (aShape.ShapeType() == TopAbs_COMPOUND || aShape.ShapeType() == TopAbs_COMPSOLID) {
 834     TopoDS_Iterator itr(aShape);
 835     for (; itr.More(); itr.Next()) {
 836       builder(myFreePrimitiveTag)->Generated(itr.Value());
 837       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 838       aName = theName + "_" + aStr.ToCString();
 839       buildName(myFreePrimitiveTag, aName);
 840       ++myFreePrimitiveTag;
 841       if (itr.Value().ShapeType() == TopAbs_COMPOUND ||
 842         itr.Value().ShapeType() == TopAbs_COMPSOLID)
 843       {
 844         GeomShapePtr itrShape(new GeomAPI_Shape());
 845         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 846         loadFirstLevel(itrShape, theName);
 847       } else {
 848         GeomShapePtr itrShape(new GeomAPI_Shape());
 849         itrShape->setImpl(new TopoDS_Shape(itr.Value()));
 850         loadNextLevels(itrShape, theName);
 851       }
 852     }
 853   } else {
 854     GeomShapePtr itrShape(new GeomAPI_Shape());
 855     itrShape->setImpl(new TopoDS_Shape(aShape));
 856     loadNextLevels(itrShape, theName);
 857   }
 858   TopTools_ListOfShape   aList;
 859   if(findAmbiguities(aShape, aList)) {
 860     TopTools_ListIteratorOfListOfShape it(aList);
 861     for (; it.More(); it.Next(), ++myFreePrimitiveTag) {
 862       builder(myFreePrimitiveTag)->Generated(it.Value());
 863       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 864       aName = theName + "_" + aStr.ToCString();
 865       buildName(myFreePrimitiveTag, aName);
 866     }
 867   }
 868 }
 869
 870 //=======================================================================
 871 void Model_BodyBuilder::loadDisconnectedEdges(GeomShapePtr theShape, const std::string& theName)
 872 {
 873   if(theShape->isNull()) return;
 874   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 875   TopTools_DataMapOfShapeListOfShape edgeNaborFaces;
 876   TopTools_ListOfShape empty;
 877   TopExp_Explorer explF(aShape, TopAbs_FACE);
 878   for (; explF.More(); explF.Next()) {
 879     const TopoDS_Shape& aFace = explF.Current();
 880     TopExp_Explorer explV(aFace, TopAbs_EDGE);
 881     for (; explV.More(); explV.Next()) {
 882       const TopoDS_Shape& anEdge = explV.Current();
 883       if (!edgeNaborFaces.IsBound(anEdge)) edgeNaborFaces.Bind(anEdge, empty);
 884       Standard_Boolean faceIsNew = Standard_True;
 885       TopTools_ListIteratorOfListOfShape itrF(edgeNaborFaces.Find(anEdge));
 886       for (; itrF.More(); itrF.Next()) {
 887         if (itrF.Value().IsSame(aFace)) {
 888           faceIsNew = Standard_False;
 889           break;
 890         }
 891       }
 892       if (faceIsNew)
 893         edgeNaborFaces.ChangeFind(anEdge).Append(aFace);
 894     }
 895   }
 896
 897   TopTools_MapOfShape anEdgesToDelete;
 898   TopExp_Explorer anEx(aShape,TopAbs_EDGE);
 899   std::string aName;
 900   for(;anEx.More();anEx.Next()) {
 901     Standard_Boolean aC0 = Standard_False;
 902     TopoDS_Shape anEdge1 = anEx.Current();
 903     if (edgeNaborFaces.IsBound(anEdge1)) {
 904       const TopTools_ListOfShape& aList1 = edgeNaborFaces.Find(anEdge1);
 905       if (aList1.Extent()<2) continue;
 906       TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(edgeNaborFaces);
 907       for (; itr.More(); itr.Next()) {
 908         TopoDS_Shape anEdge2 = itr.Key();
 909         if(anEdgesToDelete.Contains(anEdge2)) continue;
 910         if (anEdge1.IsSame(anEdge2)) continue;
 911         const TopTools_ListOfShape& aList2 = itr.Value();
 912         // compare lists of the neighbour faces of edge1 and edge2
 913         if (aList1.Extent() == aList2.Extent()) {
 914           Standard_Integer aMatches = 0;
 915           for(TopTools_ListIteratorOfListOfShape aLIter1(aList1);aLIter1.More();aLIter1.Next())
 916             for(TopTools_ListIteratorOfListOfShape aLIter2(aList2);aLIter2.More();aLIter2.Next())
 917               if (aLIter1.Value().IsSame(aLIter2.Value())) aMatches++;
 918           if (aMatches == aList1.Extent()) {
 919             aC0=Standard_True;
 920             builder(myFreePrimitiveTag)->Generated(anEdge2);
 921             anEdgesToDelete.Add(anEdge2);
 922             TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 923             aName = theName + "_" + aStr.ToCString();
 924             buildName(myFreePrimitiveTag, aName);
 925             ++myFreePrimitiveTag;
 926           }
 927         }
 928       }
 929       TopTools_MapIteratorOfMapOfShape itDelete(anEdgesToDelete);
 930       for(;itDelete.More();itDelete.Next())
 931         edgeNaborFaces.UnBind(itDelete.Key());
 932       edgeNaborFaces.UnBind(anEdge1);
 933     }
 934     if (aC0) {
 935       builder(myFreePrimitiveTag)->Generated(anEdge1);
 936       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 937       aName = theName + "_" + aStr.ToCString();
 938       buildName(myFreePrimitiveTag, aName);
 939       ++myFreePrimitiveTag;
 940     }
 941   }
 942 }
 943
 944 void Model_BodyBuilder::loadDisconnectedVertexes(GeomShapePtr theShape,
 945                                                  const std::string& theName)
 946 {
 947   if(theShape->isNull()) return;
 948   TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
 949   TopTools_DataMapOfShapeListOfShape vertexNaborEdges;
 950   TopTools_ListOfShape empty;
 951   TopExp_Explorer explF(aShape, TopAbs_EDGE);
 952   for (; explF.More(); explF.Next()) {
 953     const TopoDS_Shape& anEdge = explF.Current();
 954     TopExp_Explorer explV(anEdge, TopAbs_VERTEX);
 955     for (; explV.More(); explV.Next()) {
 956       const TopoDS_Shape& aVertex = explV.Current();
 957       if (!vertexNaborEdges.IsBound(aVertex)) vertexNaborEdges.Bind(aVertex, empty);
 958       Standard_Boolean faceIsNew = Standard_True;
 959       TopTools_ListIteratorOfListOfShape itrF(vertexNaborEdges.Find(aVertex));
 960       for (; itrF.More(); itrF.Next()) {
 961         if (itrF.Value().IsSame(anEdge)) {
 962           faceIsNew = Standard_False;
 963           break;
 964         }
 965       }
 966       if (faceIsNew) {
 967         vertexNaborEdges.ChangeFind(aVertex).Append(anEdge);
 968       }
 969     }
 970   }
 971   std::string aName;
 972   TopTools_DataMapIteratorOfDataMapOfShapeListOfShape itr(vertexNaborEdges);
 973   for (; itr.More(); itr.Next()) {
 974     const TopTools_ListOfShape& naborEdges = itr.Value();
 975     if (naborEdges.Extent() < 2) {
 976       builder(myFreePrimitiveTag)->Generated(itr.Key());
 977       TCollection_AsciiString aStr(myFreePrimitiveTag - PRIMITIVES_START_TAG + 1);
 978       aName = theName + "_" + aStr.ToCString();
 979       buildName(myFreePrimitiveTag, aName);
 980       ++myFreePrimitiveTag;
 981     }
 982   }
 983 }
 984
 985 GeomShapePtr Model_BodyBuilder::shape()
 986 {
 987   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
 988   if (aData && aData->isValid()) {
 989     TDF_Label aShapeLab = aData->shapeLab();
 990     Handle(TDF_Reference) aRef;
 991     if (aShapeLab.FindAttribute(TDF_Reference::GetID(), aRef)) {
 992       aShapeLab = aRef->Get();
 993     }
 994     Handle(TNaming_NamedShape) aName;
 995     if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
 996       TopoDS_Shape aShape = aName->Get();
 997       if (!aShape.IsNull()) {
 998         GeomShapePtr aRes(new GeomAPI_Shape);
 999         aRes->setImpl(new TopoDS_Shape(aShape));
1000         return aRes;
1001       }
1002     }
1003   }
1004   return GeomShapePtr();
1005 }
1006
1007 bool Model_BodyBuilder::isLatestEqual(const GeomShapePtr& theShape)
1008 {
1009   if (theShape.get()) {
1010     TopoDS_Shape aShape = theShape->impl<TopoDS_Shape>();
1011     std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(data());
1012     if (aData) {
1013       TDF_Label aShapeLab = aData->shapeLab();
1014       Handle(TNaming_NamedShape) aName;
1015       if (aShapeLab.FindAttribute(TNaming_NamedShape::GetID(), aName)) {
1016         TopoDS_Shape aLatest = TNaming_Tool::CurrentShape(aName);
1017         if (aLatest.IsNull())
1018           return false;
1019         if (aLatest.IsEqual(aShape))
1020           return true;
1021         // check sub-shapes for comp-solids:
1022         for (TopExp_Explorer anExp(aShape, aLatest.ShapeType()); anExp.More(); anExp.Next()) {
1023           if (aLatest.IsEqual(anExp.Current()))
1024             return true;
1025         }
1026       }
1027     }
1028   }
1029   return false;
1030 }