src/Model/Model_AttributeSelection.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        Model_AttributeSelection.cpp
   4 // Created:     2 Oct 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include "Model_AttributeSelection.h"
   8 #include "Model_Application.h"
   9 #include "Model_Events.h"
  10 #include "Model_Data.h"
  11 #include "Model_Document.h"
  12 #include "Model_SelectionNaming.h"
  13 #include <ModelAPI_Feature.h>
  14 #include <ModelAPI_ResultBody.h>
  15 #include <ModelAPI_ResultConstruction.h>
  16 #include <ModelAPI_ResultPart.h>
  17 #include <ModelAPI_CompositeFeature.h>
  18 #include <ModelAPI_Tools.h>
  19 #include <GeomAPI_Shape.h>
  20 #include <GeomAPI_PlanarEdges.h>
  21 #include <Events_Error.h>
  22
  23 #include <TNaming_Selector.hxx>
  24 #include <TNaming_NamedShape.hxx>
  25 #include <TNaming_Tool.hxx>
  26 #include <TNaming_Builder.hxx>
  27 #include <TNaming_Localizer.hxx>
  28 #include <TopoDS_Shape.hxx>
  29 #include <TopoDS_Compound.hxx>
  30 #include <TDataStd_IntPackedMap.hxx>
  31 #include <TDataStd_Integer.hxx>
  32 #include <TDataStd_UAttribute.hxx>
  33 #include <TDataStd_Name.hxx>
  34 #include <TopTools_MapOfShape.hxx>
  35 #include <TopTools_IndexedMapOfShape.hxx>
  36 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  37 #include <TopTools_ListOfShape.hxx>
  38 #include <NCollection_DataMap.hxx>
  39 #include <TopExp_Explorer.hxx>
  40 #include <TDF_LabelMap.hxx>
  41 #include <BRep_Tool.hxx>
  42 #include <BRep_Builder.hxx>
  43 #include <TopoDS_Edge.hxx>
  44 #include <TopoDS.hxx>
  45 #include <TopExp.hxx>
  46 #include <TColStd_MapOfTransient.hxx>
  47 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  48 #include <TopTools_ListIteratorOfListOfShape.hxx>
  49 #include <TColStd_MapIteratorOfPackedMapOfInteger.hxx>
  50 #include <gp_Pnt.hxx>
  51 #include <Precision.hxx>
  52 #include <TDF_ChildIterator.hxx>
  53 #include <TDF_ChildIDIterator.hxx>
  54 #include <TDataStd_Name.hxx>
  55 #include <TopAbs_ShapeEnum.hxx>
  56 #include <TopoDS_Iterator.hxx>
  57 #include <TNaming_Iterator.hxx>
  58 #include <BRep_Builder.hxx>
  59 using namespace std;
  60 //#define DEB_NAMING 1
  61 #ifdef DEB_NAMING
  62 #include <BRepTools.hxx>
  63 #endif
  64 /// adeed to the index in the packed map to signalize that the vertex of edge is seleted
  65 /// (multiplied by the index of the edge)
  66 static const int kSTART_VERTEX_DELTA = 1000000;
  67 // identifier that there is simple reference: selection equals to context
  68 Standard_GUID kSIMPLE_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb29");
  69 // simple reference in the construction
  70 Standard_GUID kCONSTUCTION_SIMPLE_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb28");
  71 // reference to Part sub-object
  72 Standard_GUID kPART_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb27");
  73 // selection is invalid after recomputation
  74 Standard_GUID kINVALID_SELECTION("bce47fd7-80fa-4462-9d63-2f58acddd49d");
  75
  76 // on this label is stored:
  77 // TNaming_NamedShape - selected shape
  78 // TNaming_Naming - topological selection information (for the body)
  79 // TDataStd_IntPackedMap - indexes of edges in composite element (for construction)
  80 // TDataStd_Integer - type of the selected shape (for construction)
  81 // TDF_Reference - from ReferenceAttribute, the context
  82 void Model_AttributeSelection::setValue(const ResultPtr& theContext,
  83   const std::shared_ptr<GeomAPI_Shape>& theSubShape, const bool theTemporarily)
  84 {
  85   if (theTemporarily) { // just keep the stored without DF update
  86     myTmpContext = theContext;
  87     myTmpSubShape = theSubShape;
  88     owner()->data()->sendAttributeUpdated(this);
  89     return;
  90   } else {
  91     myTmpContext.reset();
  92     myTmpSubShape.reset();
  93   }
  94
  95   const std::shared_ptr<GeomAPI_Shape>& anOldShape = value();
  96   bool isOldContext = theContext == myRef.value();
  97   bool isOldShape = isOldContext &&
  98     (theSubShape == anOldShape || (theSubShape && anOldShape && theSubShape->isEqual(anOldShape)));
  99   if (isOldShape) return; // shape is the same, so context is also unchanged
 100   // update the referenced object if needed
 101   if (!isOldContext) {
 102       myRef.setValue(theContext);
 103   }
 104
 105   // do noth use naming if selected shape is result shape itself, but not sub-shape
 106   TDF_Label aSelLab = selectionLabel();
 107   aSelLab.ForgetAttribute(kSIMPLE_REF_ID);
 108   aSelLab.ForgetAttribute(kCONSTUCTION_SIMPLE_REF_ID);
 109   aSelLab.ForgetAttribute(kINVALID_SELECTION);
 110
 111   bool isDegeneratedEdge = false;
 112   // do not use the degenerated edge as a shape, a null context and shape is used in the case
 113   if (theSubShape.get() && !theSubShape->isNull() && theSubShape->isEdge()) {
 114     const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 115     if (aSubShape.ShapeType() == TopAbs_EDGE)
 116       isDegeneratedEdge = BRep_Tool::Degenerated(TopoDS::Edge(aSubShape)) == Standard_True;
 117   }
 118   if (!theContext.get() || isDegeneratedEdge) {
 119     // to keep the reference attribute label
 120     TDF_Label aRefLab = myRef.myRef->Label();
 121     aSelLab.ForgetAllAttributes(true);
 122     myRef.myRef = TDF_Reference::Set(aSelLab.Father(), aSelLab.Father());
 123     return;
 124   }
 125   if (theContext->groupName() == ModelAPI_ResultBody::group()) {
 126     // do not select the whole shape for body:it is already must be in the data framework
 127     // equal and null selected objects mean the same: object is equal to context,
 128     if (theContext->shape().get() &&
 129         (theContext->shape()->isEqual(theSubShape) || !theSubShape.get())) {
 130       aSelLab.ForgetAllAttributes(true);
 131       TDataStd_UAttribute::Set(aSelLab, kSIMPLE_REF_ID);
 132     } else {
 133       selectBody(theContext, theSubShape);
 134     }
 135   } else if (theContext->groupName() == ModelAPI_ResultConstruction::group()) {
 136     if (!theSubShape.get()) {
 137       // to sub, so the whole result is selected
 138       aSelLab.ForgetAllAttributes(true);
 139       TDataStd_UAttribute::Set(aSelLab, kCONSTUCTION_SIMPLE_REF_ID);
 140       ResultConstructionPtr aConstruction =
 141         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(theContext);
 142       if (aConstruction->isInfinite()) {
 143         // For correct naming selection, put the shape into the naming structure.
 144         // It seems sub-shapes are not needed: only this shape is (and can be ) selected.
 145         TNaming_Builder aBuilder(aSelLab);
 146         aBuilder.Generated(theContext->shape()->impl<TopoDS_Shape>());
 147         std::shared_ptr<Model_Document> aMyDoc =
 148           std::dynamic_pointer_cast<Model_Document>(owner()->document());
 149         std::string aName = theContext->data()->name();
 150         aMyDoc->addNamingName(aSelLab, aName);
 151         TDataStd_Name::Set(aSelLab, aName.c_str());
 152       } else {  // for sketch the naming is needed in DS
 153         BRep_Builder aCompoundBuilder;
 154         TopoDS_Compound aComp;
 155         aCompoundBuilder.MakeCompound(aComp);
 156         for(int a = 0; a < aConstruction->facesNum(); a++) {
 157           TopoDS_Shape aFace = aConstruction->face(a)->impl<TopoDS_Shape>();
 158           aCompoundBuilder.Add(aComp, aFace);
 159         }
 160         std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape);
 161         aShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aComp));
 162         selectConstruction(theContext, aShape);
 163       }
 164     } else {
 165       selectConstruction(theContext, theSubShape);
 166     }
 167   } else if (theContext->groupName() == ModelAPI_ResultPart::group()) {
 168     aSelLab.ForgetAllAttributes(true);
 169     TDataStd_UAttribute::Set(aSelLab, kPART_REF_ID);
 170     selectPart(theContext, theSubShape);
 171   }
 172   //the attribute initialized state should be changed by sendAttributeUpdated only
 173   //myIsInitialized = true;
 174
 175   owner()->data()->sendAttributeUpdated(this);
 176
 177   std::string aSelName = namingName();
 178   if(!aSelName.empty())
 179     TDataStd_Name::Set(selectionLabel(), aSelName.c_str()); //set name
 180 }
 181
 182 std::shared_ptr<GeomAPI_Shape> Model_AttributeSelection::value()
 183 {
 184   if (myTmpContext.get() || myTmpSubShape.get()) {
 185     return myTmpSubShape;
 186   }
 187
 188   std::shared_ptr<GeomAPI_Shape> aResult;
 189   TDF_Label aSelLab = selectionLabel();
 190   if (aSelLab.IsAttribute(kINVALID_SELECTION))
 191     return aResult;
 192
 193   if (myRef.isInitialized()) {
 194     if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 195       ResultPtr aContext = context();
 196       if (!aContext.get())
 197         return aResult; // empty result
 198       return aContext->shape();
 199     }
 200     if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, nothing is in value
 201         return aResult; // empty result
 202     }
 203     if (aSelLab.IsAttribute(kPART_REF_ID)) {
 204       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(context());
 205       if (!aPart.get() || !aPart->isActivated())
 206         return std::shared_ptr<GeomAPI_Shape>(); // postponed naming needed
 207       Handle(TDataStd_Integer) anIndex;
 208       if (selectionLabel().FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 209         if (anIndex->Get()) { // special selection attribute was created, use it
 210           return aPart->selectionValue(anIndex->Get());
 211         } else { // face with name is already in the data model, so try to take it by name
 212           Handle(TDataStd_Name) aName;
 213           if (selectionLabel().FindAttribute(TDataStd_Name::GetID(), aName)) {
 214             std::string aSubShapeName(TCollection_AsciiString(aName->Get()).ToCString());
 215             std::size_t aPartEnd = aSubShapeName.find('/');
 216             if (aPartEnd != string::npos && aPartEnd != aSubShapeName.rfind('/')) {
 217               string aNameInPart = aSubShapeName.substr(aPartEnd + 1);
 218               int anIndex;
 219               std::string aType; // to reuse already existing selection the type is not needed
 220               return aPart->shapeInPart(aNameInPart, aType, anIndex);
 221             }
 222           }
 223         }
 224       }
 225     }
 226
 227     Handle(TNaming_NamedShape) aSelection;
 228     if (selectionLabel().FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 229       TopoDS_Shape aSelShape = aSelection->Get();
 230       aResult = std::shared_ptr<GeomAPI_Shape>(new GeomAPI_Shape);
 231       aResult->setImpl(new TopoDS_Shape(aSelShape));
 232     } else { // for simple construction element: just shape of this construction element
 233       ResultConstructionPtr aConstr =
 234         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(context());
 235       if (aConstr) {
 236         return aConstr->shape();
 237       }
 238     }
 239   }
 240   return aResult;
 241 }
 242
 243 bool Model_AttributeSelection::isInvalid()
 244 {
 245   return selectionLabel().IsAttribute(kINVALID_SELECTION) == Standard_True;
 246 }
 247
 248 bool Model_AttributeSelection::isInitialized()
 249 {
 250   if (ModelAPI_AttributeSelection::isInitialized()) { // additional checkings if it is initialized
 251     std::shared_ptr<GeomAPI_Shape> aResult;
 252     if (myRef.isInitialized()) {
 253       TDF_Label aSelLab = selectionLabel();
 254       if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 255         ResultPtr aContext = context();
 256         return aContext.get() != NULL;
 257       }
 258       if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, nothing is in value
 259           return true;
 260       }
 261
 262       Handle(TNaming_NamedShape) aSelection;
 263       if (selectionLabel().FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 264         return !aSelection->Get().IsNull();
 265       } else { // for simple construction element: just shape of this construction element
 266         ResultConstructionPtr aConstr =
 267           std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(context());
 268         if (aConstr.get()) {
 269           return aConstr->shape().get() != NULL;
 270         }
 271       }
 272     }
 273   }
 274   return false;
 275 }
 276
 277 Model_AttributeSelection::Model_AttributeSelection(TDF_Label& theLabel)
 278   : myRef(theLabel)
 279 {
 280   myIsInitialized = myRef.isInitialized();
 281 }
 282
 283 void Model_AttributeSelection::setID(const std::string theID)
 284 {
 285   myRef.setID(theID);
 286   ModelAPI_AttributeSelection::setID(theID);
 287 }
 288
 289 ResultPtr Model_AttributeSelection::context() {
 290   if (myTmpContext.get() || myTmpSubShape.get()) {
 291     return myTmpContext;
 292   }
 293
 294   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 295   // for parts there could be same-data result, so take the last enabled
 296   if (aResult.get() && aResult->groupName() == ModelAPI_ResultPart::group()) {
 297     int aSize = aResult->document()->size(ModelAPI_ResultPart::group());
 298     for(int a = aSize - 1; a >= 0; a--) {
 299       ObjectPtr aPart = aResult->document()->object(ModelAPI_ResultPart::group(), a);
 300       if (aPart.get() && aPart->data() == aResult->data()) {
 301         ResultPtr aPartResult = std::dynamic_pointer_cast<ModelAPI_Result>(aPart);
 302         FeaturePtr anOwnerFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 303         // check that this result is not this-feature result (it is forbidden t oselect itself)
 304         if (anOwnerFeature.get() && anOwnerFeature->firstResult() != aPartResult) {
 305           return aPartResult;
 306         }
 307       }
 308     }
 309   }
 310   return aResult;
 311 }
 312
 313
 314 void Model_AttributeSelection::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
 315 {
 316   ModelAPI_AttributeSelection::setObject(theObject);
 317   myRef.setObject(theObject);
 318 }
 319
 320 TDF_LabelMap& Model_AttributeSelection::scope()
 321 {
 322   if (myScope.IsEmpty()) { // create a new scope if not yet done
 323     // gets all featueres with named shapes that are bofore this feature label (before in history)
 324     DocumentPtr aMyDoc = owner()->document();
 325     std::list<std::shared_ptr<ModelAPI_Feature> > allFeatures = aMyDoc->allFeatures();
 326     std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFIter = allFeatures.begin();
 327     bool aMePassed = false;
 328     CompositeFeaturePtr aComposite =
 329       std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(owner());
 330     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 331     CompositeFeaturePtr aCompositeOwner, aCompositeOwnerOwner;
 332     if (aFeature.get()) {
 333       aCompositeOwner = ModelAPI_Tools::compositeOwner(aFeature);
 334       if (aCompositeOwner.get()) {
 335          aCompositeOwnerOwner = ModelAPI_Tools::compositeOwner(aCompositeOwner);
 336       }
 337     }
 338     // for group Scope is not limitet: this is always up to date objects
 339     bool isGroup = aFeature.get() && aFeature->getKind() == "Group";
 340     for(; aFIter != allFeatures.end(); aFIter++) {
 341       if (*aFIter == owner()) {  // the left features are created later (except subs of composite)
 342         aMePassed = true;
 343         continue;
 344       }
 345       if (isGroup) aMePassed = false;
 346       bool isInScope = !aMePassed;
 347       if (!isInScope && aComposite.get()) { // try to add sub-elements of composite if this is composite
 348         if (aComposite->isSub(*aFIter))
 349           isInScope = true;
 350       }
 351       // remove the composite-owner of this feature (sketch in extrusion-cut)
 352       if (isInScope && (aCompositeOwner == *aFIter || aCompositeOwnerOwner == *aFIter))
 353         isInScope = false;
 354
 355       if (isInScope && aFIter->get() && (*aFIter)->data()->isValid()) {
 356         TDF_Label aFeatureLab = std::dynamic_pointer_cast<Model_Data>(
 357           (*aFIter)->data())->label().Father();
 358         TDF_ChildIDIterator aNSIter(aFeatureLab, TNaming_NamedShape::GetID(), 1);
 359         for(; aNSIter.More(); aNSIter.Next()) {
 360           Handle(TNaming_NamedShape) aNS = Handle(TNaming_NamedShape)::DownCast(aNSIter.Value());
 361           if (!aNS.IsNull() && aNS->Evolution() != TNaming_SELECTED) {
 362             myScope.Add(aNS->Label());
 363           }
 364         }
 365       }
 366     }
 367   }
 368   return myScope;
 369 }
 370
 371 /// produces theEdge orientation relatively to theContext face
 372 int edgeOrientation(const TopoDS_Shape& theContext, TopoDS_Edge& theEdge)
 373 {
 374   if (theContext.ShapeType() != TopAbs_FACE)
 375     return 0;
 376   TopoDS_Face aContext = TopoDS::Face(theContext);
 377   if (theEdge.Orientation() == TopAbs_FORWARD)
 378     return 1;
 379   if (theEdge.Orientation() == TopAbs_REVERSED)
 380     return -1;
 381   return 0; // unknown
 382 }
 383
 384 /// Sets the invalid flag if flag is false, or removes it if "true"
 385 /// Returns theFlag
 386 static bool setInvalidIfFalse(TDF_Label& theLab, const bool theFlag) {
 387   if (theFlag) {
 388     theLab.ForgetAttribute(kINVALID_SELECTION);
 389   } else {
 390     TDataStd_UAttribute::Set(theLab, kINVALID_SELECTION);
 391   }
 392   return theFlag;
 393 }
 394
 395 bool Model_AttributeSelection::update()
 396 {
 397   TDF_Label aSelLab = selectionLabel();
 398   ResultPtr aContext = context();
 399   if (!aContext.get())
 400     return setInvalidIfFalse(aSelLab, false);
 401   if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 402     return setInvalidIfFalse(aSelLab, aContext->shape() && !aContext->shape()->isNull());
 403   }
 404   if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, not sub-shape
 405     // if there is a sketch, the sketch-naming must be updated
 406     ResultConstructionPtr aConstruction =
 407       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
 408     if (!aConstruction->isInfinite()) {
 409       BRep_Builder aCompoundBuilder;
 410       TopoDS_Compound aComp;
 411       aCompoundBuilder.MakeCompound(aComp);
 412       for(int a = 0; a < aConstruction->facesNum(); a++) {
 413         TopoDS_Shape aFace = aConstruction->face(a)->impl<TopoDS_Shape>();
 414         aCompoundBuilder.Add(aComp, aFace);
 415       }
 416       std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape);
 417       aShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aComp));
 418       selectConstruction(aContext, aShape);
 419     }
 420     return setInvalidIfFalse(aSelLab, aContext->shape() && !aContext->shape()->isNull());
 421   }
 422
 423   if (aSelLab.IsAttribute(kPART_REF_ID)) { // it is reference to the part object
 424     std::shared_ptr<GeomAPI_Shape> aNoSelection;
 425     return setInvalidIfFalse(aSelLab, selectPart(aContext, aNoSelection, true));
 426   }
 427
 428   if (aContext->groupName() == ModelAPI_ResultBody::group()) {
 429     // body: just a named shape, use selection mechanism from OCCT
 430     TNaming_Selector aSelector(aSelLab);
 431     bool aResult = aSelector.Solve(scope()) == Standard_True;
 432     owner()->data()->sendAttributeUpdated(this);
 433     return setInvalidIfFalse(aSelLab, aResult);
 434   } else if (aContext->groupName() == ModelAPI_ResultConstruction::group()) {
 435     // construction: identification by the results indexes, recompute faces and
 436     // take the face that more close by the indexes
 437     ResultConstructionPtr aConstructionContext =
 438       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
 439     FeaturePtr aContextFeature = aContext->document()->feature(aContext);
 440     // sketch sub-element
 441     if (aConstructionContext &&
 442         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature).get())
 443     {
 444       TDF_Label aLab = myRef.myRef->Label();
 445       // getting a type of selected shape
 446       Handle(TDataStd_Integer) aTypeAttr;
 447       if (!aLab.FindAttribute(TDataStd_Integer::GetID(), aTypeAttr)) {
 448         return setInvalidIfFalse(aSelLab, false);
 449       }
 450       TopAbs_ShapeEnum aShapeType = (TopAbs_ShapeEnum)(aTypeAttr->Get());
 451       // selected indexes will be needed in each "if"
 452       Handle(TDataStd_IntPackedMap) aSubIds;
 453       std::shared_ptr<GeomAPI_Shape> aNewSelected;
 454       bool aNoIndexes =
 455         !aLab.FindAttribute(TDataStd_IntPackedMap::GetID(), aSubIds) || aSubIds->Extent() == 0;
 456       // for now working only with composite features
 457       CompositeFeaturePtr aComposite =
 458         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature);
 459       if (!aComposite.get() || aComposite->numberOfSubs() == 0) {
 460         return setInvalidIfFalse(aSelLab, false);
 461       }
 462
 463       if (aShapeType == TopAbs_FACE) { // compound is for the whole sketch selection
 464         // If this is a wire with plane defined thin it is a sketch-like object
 465         if (!aConstructionContext->facesNum()) // no faces, update can not work correctly
 466           return setInvalidIfFalse(aSelLab, false);
 467         // if there is no edges indexes, any face can be used: take the first
 468         std::shared_ptr<GeomAPI_Shape> aNewSelected;
 469         if (aNoIndexes) {
 470           aNewSelected = aConstructionContext->face(0);
 471         } else { // searching for most looks-like initial face by the indexes
 472           // prepare edges of the current resut for the fast searching
 473           NCollection_DataMap<Handle(Geom_Curve), int> allCurves; // curves and orientations of edges
 474           const int aSubNum = aComposite->numberOfSubs();
 475           for(int a = 0; a < aSubNum; a++) {
 476             int aSubID = aComposite->subFeatureId(a);
 477             if (aSubIds->Contains(aSubID)) {
 478               FeaturePtr aSub = aComposite->subFeature(a);
 479               const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 480               std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRes;
 481               for(aRes = aResults.cbegin(); aRes != aResults.cend(); aRes++) {
 482                 ResultConstructionPtr aConstr =
 483                   std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aRes);
 484                 if (aConstr->shape() && aConstr->shape()->isEdge()) {
 485                   const TopoDS_Shape& aResShape = aConstr->shape()->impl<TopoDS_Shape>();
 486                   TopoDS_Edge anEdge = TopoDS::Edge(aResShape);
 487                   if (!anEdge.IsNull()) {
 488                     Standard_Real aFirst, aLast;
 489                     Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 490                     // searching for orientation information
 491                     int anOrient = 0;
 492                     Handle(TDataStd_Integer) anInt;
 493                     if (aSelLab.FindChild(aSubID).FindAttribute(TDataStd_Integer::GetID(), anInt)){
 494                       anOrient = anInt->Get();
 495                     }
 496                     allCurves.Bind(aCurve, anOrient);
 497                   }
 498                 }
 499               }
 500             }
 501           }
 502           int aBestFound = 0; // best number of found edges (not percentage: issue 1019)
 503           int aBestOrient = 0; // for the equal "BestFound" additional parameter is orientation
 504           for(int aFaceIndex = 0; aFaceIndex < aConstructionContext->facesNum(); aFaceIndex++) {
 505             int aFound = 0, aNotFound = 0, aSameOrientation = 0;
 506             TopoDS_Face aFace =
 507               TopoDS::Face(aConstructionContext->face(aFaceIndex)->impl<TopoDS_Shape>());
 508             TopExp_Explorer anEdgesExp(aFace, TopAbs_EDGE);
 509             TColStd_MapOfTransient alreadyProcessed; // to avoid counting edges with same curved (841)
 510             for(; anEdgesExp.More(); anEdgesExp.Next()) {
 511               TopoDS_Edge anEdge = TopoDS::Edge(anEdgesExp.Current());
 512               if (!anEdge.IsNull()) {
 513                 Standard_Real aFirst, aLast;
 514                 Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 515                 if (alreadyProcessed.Contains(aCurve))
 516                   continue;
 517                 alreadyProcessed.Add(aCurve);
 518                 if (allCurves.IsBound(aCurve)) {
 519                   aFound++;
 520                   int anOrient = allCurves.Find(aCurve);
 521                   if (anOrient != 0) {  // extra comparision score is orientation
 522                     if (edgeOrientation(aFace, anEdge) == anOrient)
 523                       aSameOrientation++;
 524                   }
 525                 } else {
 526                   aNotFound++;
 527                 }
 528               }
 529             }
 530             if (aFound + aNotFound != 0) {
 531               if (aFound > aBestFound ||
 532                   (aFound == aBestFound && aSameOrientation > aBestOrient)) {
 533                 aBestFound = aFound;
 534                 aBestOrient = aSameOrientation;
 535                 aNewSelected = aConstructionContext->face(aFaceIndex);
 536               }
 537             }
 538           }
 539         }
 540         if (aNewSelected) { // store this new selection
 541           selectConstruction(aContext, aNewSelected);
 542           owner()->data()->sendAttributeUpdated(this);
 543           return setInvalidIfFalse(aSelLab, true);
 544         } else { // if the selection is not found, put the empty shape: it's better to have disappeared shape, than the old, the lost one
 545           TNaming_Builder anEmptyBuilder(selectionLabel());
 546           return setInvalidIfFalse(aSelLab, false);
 547         }
 548       } else if (aShapeType == TopAbs_EDGE) {
 549         // just reselect the edge by the id
 550         const int aSubNum = aComposite->numberOfSubs();
 551         for(int a = 0; a < aSubNum; a++) {
 552           // if aSubIds take any, the first appropriate
 553           if (aSubIds->IsEmpty() || aSubIds->Contains(aComposite->subFeatureId(a))) {
 554             // found the appropriate feature
 555             FeaturePtr aFeature = aComposite->subFeature(a);
 556             std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter =
 557               aFeature->results().cbegin();
 558             for(;aResIter != aFeature->results().cend(); aResIter++) {
 559               ResultConstructionPtr aRes =
 560                 std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aResIter);
 561               if (aRes && aRes->shape() && aRes->shape()->isEdge()) { // found!
 562                 selectConstruction(aContext, aRes->shape());
 563                 owner()->data()->sendAttributeUpdated(this);
 564                 return setInvalidIfFalse(aSelLab, true);
 565               }
 566             }
 567           }
 568         }
 569       } else if (aShapeType == TopAbs_VERTEX) {
 570         // just reselect the vertex by the id of edge
 571         const int aSubNum = aComposite->numberOfSubs();
 572         for(int a = 0; a < aSubNum; a++) {
 573           // if aSubIds take any, the first appropriate
 574           int aFeatureID = aComposite->subFeatureId(a);
 575           if (aSubIds->IsEmpty() || aSubIds->Contains(aFeatureID) ||
 576             aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA) ||
 577             aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA * 2)) {
 578               // searching for deltas
 579               int aVertexNum = 0;
 580               if (aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA)) aVertexNum = 1;
 581               else if (aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA * 2)) aVertexNum = 2;
 582               // found the feature with appropriate edge
 583               FeaturePtr aFeature = aComposite->subFeature(a);
 584               std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter =
 585                 aFeature->results().cbegin();
 586               for(;aResIter != aFeature->results().cend(); aResIter++) {
 587                 ResultConstructionPtr aRes =
 588                   std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aResIter);
 589                 if (aRes && aRes->shape()) {
 590                   if (aRes->shape()->isVertex() && aVertexNum == 0) { // found!
 591                     selectConstruction(aContext, aRes->shape());
 592                     owner()->data()->sendAttributeUpdated(this);
 593                     return setInvalidIfFalse(aSelLab, true);
 594                   } else if (aRes->shape()->isEdge() && aVertexNum > 0) {
 595                     const TopoDS_Shape& anEdge = aRes->shape()->impl<TopoDS_Shape>();
 596                     int aVIndex = 1;
 597                     for(TopExp_Explorer aVExp(anEdge, TopAbs_VERTEX); aVExp.More(); aVExp.Next()) {
 598                       if (aVIndex == aVertexNum) { // found!
 599                         std::shared_ptr<GeomAPI_Shape> aVertex(new GeomAPI_Shape);
 600                         aVertex->setImpl(new TopoDS_Shape(aVExp.Current()));
 601                         selectConstruction(aContext, aVertex);
 602                         owner()->data()->sendAttributeUpdated(this);
 603                         return setInvalidIfFalse(aSelLab, true);
 604                       }
 605                       aVIndex++;
 606                     }
 607                   }
 608                 }
 609               }
 610           }
 611         }
 612       }
 613     } else { // simple construction element: the selected is that needed
 614       selectConstruction(aContext, aContext->shape());
 615       owner()->data()->sendAttributeUpdated(this);
 616       return setInvalidIfFalse(aSelLab, true);
 617     }
 618   }
 619   return setInvalidIfFalse(aSelLab, false); // unknown case
 620 }
 621
 622
 623 void Model_AttributeSelection::selectBody(
 624   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape)
 625 {
 626   // perform the selection
 627   TNaming_Selector aSel(selectionLabel());
 628   TopoDS_Shape aContext;
 629
 630   ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(myRef.value());
 631   if (aBody) {
 632     aContext = aBody->shape()->impl<TopoDS_Shape>();
 633   } else {
 634     ResultPtr aResult =
 635       std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 636     if (aResult) {
 637       aContext = aResult->shape()->impl<TopoDS_Shape>();
 638     } else {
 639       Events_Error::send("A result with shape is expected");
 640       return;
 641     }
 642   }
 643   TopoDS_Shape aNewShape = theSubShape ? theSubShape->impl<TopoDS_Shape>() : aContext;
 644   /// fix for issue 411: result modified shapes must not participate in this selection mechanism
 645   FeaturePtr aFeatureOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 646   if (aFeatureOwner.get())
 647     aFeatureOwner->eraseResults();
 648   if (!aContext.IsNull()) {
 649     aSel.Select(aNewShape, aContext);
 650   }
 651 }
 652
 653 /// registers the name of the shape in the label (theID == 0) of sub label (theID is a tag)
 654 /// if theID is zero,
 655 /// theOrientation is additional information about the positioning of edge relatively to face
 656 ///    it is stored in the integer attribute of the edge sub-label:
 657 ///    -1 is out, 1 is in, 0 is not needed
 658 static void registerSubShape(TDF_Label theMainLabel, TopoDS_Shape theShape,
 659   const int theID, const FeaturePtr& theContextFeature, std::shared_ptr<Model_Document> theDoc,
 660   std::string theAdditionalName, std::map<int, int>& theOrientations,
 661   Handle(TDataStd_IntPackedMap) theRefs = Handle(TDataStd_IntPackedMap)(),
 662   const int theOrientation = 0)
 663 {
 664   TDF_Label aLab = theID == 0 ? theMainLabel : theMainLabel.FindChild(theID);
 665   if (theOrientation != 0) { // store the orientation of edge relatively to face if needed
 666     TDataStd_Integer::Set(aLab, theOrientation);
 667   }
 668   TNaming_Builder aBuilder(aLab);
 669   aBuilder.Generated(theShape);
 670   std::stringstream aName;
 671   aName<<theContextFeature->name()<<"/";
 672   if (!theAdditionalName.empty())
 673     aName<<theAdditionalName<<"/";
 674   if (theShape.ShapeType() == TopAbs_FACE) aName<<"Face";
 675   else if (theShape.ShapeType() == TopAbs_EDGE) aName<<"Edge";
 676   else if (theShape.ShapeType() == TopAbs_VERTEX) aName<<"Vertex";
 677
 678   if (theRefs.IsNull()) {
 679     aName<<theID;
 680     if (theOrientation == 1)
 681       aName<<"f";
 682     else if (theOrientation == -1)
 683       aName<<"r";
 684   } else { // make a compisite name from all sub-elements indexes: "1_2_3_4"
 685     TColStd_MapIteratorOfPackedMapOfInteger aRef(theRefs->GetMap());
 686     for(; aRef.More(); aRef.Next()) {
 687       aName<<"-"<<aRef.Key();
 688       if (theOrientations.find(aRef.Key()) != theOrientations.end()) {
 689         if (theOrientations[aRef.Key()] == 1)
 690           aName<<"f";
 691         else if (theOrientations[aRef.Key()] == -1)
 692           aName<<"r";
 693       }
 694     }
 695   }
 696
 697   theDoc->addNamingName(aLab, aName.str());
 698   TDataStd_Name::Set(aLab, aName.str().c_str());
 699 }
 700
 701 void Model_AttributeSelection::selectConstruction(
 702   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape)
 703 {
 704   std::shared_ptr<Model_Document> aMyDoc =
 705     std::dynamic_pointer_cast<Model_Document>(owner()->document());
 706   FeaturePtr aContextFeature = theContext->document()->feature(theContext);
 707   CompositeFeaturePtr aComposite =
 708     std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature);
 709   const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 710   if (!aComposite || aComposite->numberOfSubs() == 0) {
 711     // saving of context is enough: result construction contains exactly the needed shape
 712     TNaming_Builder aBuilder(selectionLabel());
 713     aBuilder.Generated(aSubShape);
 714     aMyDoc->addNamingName(selectionLabel(), theContext->data()->name());
 715     TDataStd_Name::Set(selectionLabel(), theContext->data()->name().c_str());
 716     return;
 717   }
 718   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(owner()->data());
 719   TDF_Label aLab = myRef.myRef->Label();
 720   // identify the reuslts of sub-object of the composite by edges
 721   // save type of the selected shape in integer attribute
 722   TopAbs_ShapeEnum aShapeType = aSubShape.ShapeType();
 723   TDataStd_Integer::Set(aLab, (int)aShapeType);
 724   gp_Pnt aVertexPos;
 725   TColStd_MapOfTransient allCurves;
 726   if (aShapeType == TopAbs_VERTEX) { // compare positions
 727     aVertexPos = BRep_Tool::Pnt(TopoDS::Vertex(aSubShape));
 728   } else {
 729     for(TopExp_Explorer anEdgeExp(aSubShape, TopAbs_EDGE); anEdgeExp.More(); anEdgeExp.Next()) {
 730       TopoDS_Edge anEdge = TopoDS::Edge(anEdgeExp.Current());
 731       Standard_Real aFirst, aLast;
 732       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 733       allCurves.Add(aCurve);
 734     }
 735   }
 736   // iterate and store the result ids of sub-elements and sub-elements to sub-labels
 737   Handle(TDataStd_IntPackedMap) aRefs = TDataStd_IntPackedMap::Set(aLab);
 738   std::map<int, int> anOrientations; //map from edges IDs to orientations of these edges in face
 739   aRefs->Clear();
 740   const int aSubNum = aComposite->numberOfSubs();
 741   for(int a = 0; a < aSubNum; a++) {
 742     FeaturePtr aSub = aComposite->subFeature(a);
 743     const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 744     std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRes = aResults.cbegin();
 745     // there may be many shapes (circle and center): register if at least one is in selection
 746     for(; aRes != aResults.cend(); aRes++) {
 747       ResultConstructionPtr aConstr =
 748         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aRes);
 749       if (!aConstr->shape()) {
 750         continue;
 751       }
 752       if (aShapeType == TopAbs_VERTEX) {
 753         if (aConstr->shape()->isVertex()) { // compare vertices positions
 754           const TopoDS_Shape& aVertex = aConstr->shape()->impl<TopoDS_Shape>();
 755           gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aVertex));
 756           if (aPnt.IsEqual(aVertexPos, Precision::Confusion())) {
 757             aRefs->Add(aComposite->subFeatureId(a));
 758           }
 759         } else { // get first or last vertex of the edge: last is stored with negative sign
 760           const TopoDS_Shape& anEdge = aConstr->shape()->impl<TopoDS_Shape>();
 761           int aDelta = kSTART_VERTEX_DELTA;
 762           for(TopExp_Explorer aVExp(anEdge, TopAbs_VERTEX); aVExp.More(); aVExp.Next()) {
 763             gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aVExp.Current()));
 764             if (aPnt.IsEqual(aVertexPos, Precision::Confusion())) {
 765               aRefs->Add(aDelta + aComposite->subFeatureId(a));
 766               break;
 767             }
 768             aDelta += kSTART_VERTEX_DELTA;
 769           }
 770         }
 771       } else {
 772         if (aConstr->shape()->isEdge()) {
 773           const TopoDS_Shape& aResShape = aConstr->shape()->impl<TopoDS_Shape>();
 774           TopoDS_Edge anEdge = TopoDS::Edge(aResShape);
 775           if (!anEdge.IsNull()) {
 776             Standard_Real aFirst, aLast;
 777             Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 778             if (allCurves.Contains(aCurve)) {
 779               int anID = aComposite->subFeatureId(a);
 780               aRefs->Add(anID);
 781               if (aShapeType != TopAbs_EDGE) { // face needs the sub-edges on sub-labels
 782                 // add edges to sub-label to support naming for edges selection
 783                 TopExp_Explorer anEdgeExp(aSubShape, TopAbs_EDGE);
 784                 for(; anEdgeExp.More(); anEdgeExp.Next()) {
 785                   TopoDS_Edge anEdge = TopoDS::Edge(anEdgeExp.Current());
 786                   Standard_Real aFirst, aLast;
 787                   Handle(Geom_Curve) aFaceCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 788                   if (aFaceCurve == aCurve) {
 789                     int anOrient = edgeOrientation(aSubShape, anEdge);
 790                     anOrientations[anID] = anOrient;
 791                     registerSubShape(
 792                       selectionLabel(), anEdge, anID, aContextFeature, aMyDoc, "", anOrientations,
 793                       Handle(TDataStd_IntPackedMap)(), anOrient);
 794                   }
 795                 }
 796               } else { // put vertices of the selected edge to sub-labels
 797                 // add edges to sub-label to support naming for edges selection
 798                 TopExp_Explorer anEdgeExp(aSubShape, TopAbs_VERTEX);
 799                 int aTagIndex = anID + kSTART_VERTEX_DELTA;
 800                 for(; anEdgeExp.More(); anEdgeExp.Next(), aTagIndex += kSTART_VERTEX_DELTA) {
 801                   TopoDS_Vertex aV = TopoDS::Vertex(anEdgeExp.Current());
 802
 803                   std::stringstream anAdditionalName;
 804                   registerSubShape(
 805                     selectionLabel(), aV, aTagIndex, aContextFeature, aMyDoc, "", anOrientations);
 806                 }
 807               }
 808             }
 809           }
 810         }
 811       }
 812     }
 813   }
 814   // store the selected as primitive
 815   TNaming_Builder aBuilder(selectionLabel());
 816   aBuilder.Generated(aSubShape);
 817     registerSubShape(
 818       selectionLabel(), aSubShape, 0, aContextFeature, aMyDoc, "", anOrientations, aRefs);
 819 }
 820
 821 bool Model_AttributeSelection::selectPart(
 822   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape,
 823   const bool theUpdate)
 824 {
 825   ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(theContext);
 826   if (!aPart.get() || !aPart->isActivated())
 827     return true; // postponed naming
 828   if (theUpdate) {
 829     Handle(TDataStd_Integer) anIndex;
 830     if (selectionLabel().FindAttribute(TDataStd_Integer::GetID(), anIndex)) { // by internal selection
 831       if (anIndex->Get() > 0) {
 832         // update the selection by index
 833         return aPart->updateInPart(anIndex->Get());
 834       } else {
 835         return true; // nothing to do, referencing just by name
 836       }
 837     }
 838     return true; // nothing to do, referencing just by name
 839   }
 840   // store the shape (in case part is not loaded it should be usefull
 841   TopoDS_Shape aShape;
 842   std::string aName = theContext->data()->name();
 843   if (!theSubShape.get() || theSubShape->isNull()) {// the whole part shape is selected
 844     aShape = theContext->shape()->impl<TopoDS_Shape>();
 845   } else {
 846     aShape = theSubShape->impl<TopoDS_Shape>();
 847     int anIndex;
 848     aName += "/" + aPart->nameInPart(theSubShape, anIndex);
 849     TDataStd_Integer::Set(selectionLabel(), anIndex);
 850   }
 851   TNaming_Builder aBuilder(selectionLabel());
 852   aBuilder.Select(aShape, aShape);
 853   // identify by name in the part
 854   TDataStd_Name::Set(selectionLabel(), aName.c_str());
 855   return !aName.empty();
 856 }
 857
 858 TDF_Label Model_AttributeSelection::selectionLabel()
 859 {
 860   return myRef.myRef->Label().FindChild(1);
 861 }
 862
 863 std::string Model_AttributeSelection::namingName(const std::string& theDefaultName)
 864 {
 865   std::string aName("");
 866   if(!this->isInitialized())
 867     return !theDefaultName.empty() ? theDefaultName : aName;
 868   Handle(TDataStd_Name) anAtt;
 869   if(selectionLabel().FindAttribute(TDataStd_Name::GetID(), anAtt)) {
 870     aName = TCollection_AsciiString(anAtt->Get()).ToCString();
 871     return aName;
 872   }
 873
 874   std::shared_ptr<GeomAPI_Shape> aSubSh = value();
 875   ResultPtr aCont = context();
 876
 877   Model_SelectionNaming aSelNaming(selectionLabel());
 878   return aSelNaming.namingName(aCont, aSubSh, theDefaultName);
 879 }
 880
 881 // type ::= COMP | COMS | SOLD | SHEL | FACE | WIRE | EDGE | VERT
 882 void Model_AttributeSelection::selectSubShape(
 883   const std::string& theType, const std::string& theSubShapeName)
 884 {
 885   if(theSubShapeName.empty() || theType.empty()) return;
 886
 887   // check this is Part-name: 2 delimiters in the name
 888   std::size_t aPartEnd = theSubShapeName.find('/');
 889   if (aPartEnd != string::npos && aPartEnd != theSubShapeName.rfind('/')) {
 890     std::string aPartName = theSubShapeName.substr(0, aPartEnd);
 891     ObjectPtr aFound = owner()->document()->objectByName(ModelAPI_ResultPart::group(), aPartName);
 892     if (aFound.get()) { // found such part, so asking it for the name
 893       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aFound);
 894       string aNameInPart = theSubShapeName.substr(aPartEnd + 1);
 895       int anIndex;
 896       std::shared_ptr<GeomAPI_Shape> aSelected = aPart->shapeInPart(aNameInPart, theType, anIndex);
 897       if (aSelected.get()) {
 898         setValue(aPart, aSelected);
 899         TDataStd_Integer::Set(selectionLabel(), anIndex);
 900         return;
 901       }
 902     }
 903   }
 904
 905   Model_SelectionNaming aSelNaming(selectionLabel());
 906   std::shared_ptr<Model_Document> aDoc =
 907     std::dynamic_pointer_cast<Model_Document>(owner()->document());
 908   std::shared_ptr<GeomAPI_Shape> aShapeToBeSelected;
 909   ResultPtr aCont;
 910   if (aSelNaming.selectSubShape(theType, theSubShapeName, aDoc, aShapeToBeSelected, aCont)) {
 911     setValue(aCont, aShapeToBeSelected);
 912   }
 913 }
 914
 915 int Model_AttributeSelection::Id()
 916 {
 917   int anID = 0;
 918   std::shared_ptr<GeomAPI_Shape> aSelection = value();
 919   std::shared_ptr<GeomAPI_Shape> aContext = context()->shape();
 920   TopoDS_Shape aMainShape = aContext->impl<TopoDS_Shape>();
 921   const TopoDS_Shape& aSubShape = aSelection->impl<TopoDS_Shape>();
 922   // searching for the latest main shape
 923   if (aSelection && !aSelection->isNull() &&
 924     aContext   && !aContext->isNull())
 925   {
 926     std::shared_ptr<Model_Document> aDoc =
 927       std::dynamic_pointer_cast<Model_Document>(context()->document());
 928     if (aDoc.get()) {
 929       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aMainShape, aDoc->generalLabel());
 930       if (!aNS.IsNull()) {
 931         aMainShape = TNaming_Tool::CurrentShape(aNS);
 932       }
 933     }
 934
 935     TopTools_IndexedMapOfShape aSubShapesMap;
 936     TopExp::MapShapes(aMainShape, aSubShapesMap);
 937     anID = aSubShapesMap.FindIndex(aSubShape);
 938   }
 939   return anID;
 940 }