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Topological name management. Building names for faces, edges and vertexes.
authorszy <szy@opencascade.com>
Wed, 24 Dec 2014 16:26:18 +0000 (19:26 +0300)
committerszy <szy@opencascade.com>
Wed, 24 Dec 2014 16:26:18 +0000 (19:26 +0300)
src/Model/Model_AttributeSelection.cpp

index aa3d7c9760acdd0b0c11ff4f2790944655ef0656..ea00eaaec15223b20109c06ec8a18f97f3177303 100644 (file)
 #include <TNaming_NamedShape.hxx>
 #include <TNaming_Tool.hxx>
 #include <TNaming_Builder.hxx>
+#include <TNaming_Localizer.hxx>
 #include <TopoDS_Shape.hxx>
+#include <TopoDS_Compound.hxx>
 #include <TDataStd_IntPackedMap.hxx>
 #include <TDataStd_Integer.hxx>
 #include <TopTools_MapOfShape.hxx>
+#include <TopTools_IndexedMapOfShape.hxx>
+#include <TopTools_MapIteratorOfMapOfShape.hxx>
+#include <TopTools_ListOfShape.hxx>
 #include <TopExp_Explorer.hxx>
 #include <TDF_LabelMap.hxx>
 #include <BRep_Tool.hxx>
+#include <BRep_Builder.hxx>
 #include <TopoDS_Edge.hxx>
 #include <TopoDS.hxx>
+#include <TopExp.hxx>
 #include <TColStd_MapOfTransient.hxx>
+#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
 #include <gp_Pnt.hxx>
 #include <Precision.hxx>
 #include <TDF_ChildIterator.hxx>
@@ -433,54 +442,164 @@ TDF_Label Model_AttributeSelection::selectionLabel()
   return myRef.myRef->Label().FindChild(1);
 }
 
-std::string Model_AttributeSelection::buildSubShapeName(std::shared_ptr<GeomAPI_Shape> theSubShape, 
-                                                           const ResultPtr& theContext)
+#define DEB_NAME 1
+std::string GetShapeName(std::shared_ptr<Model_Document> theDoc, const TopoDS_Shape& theShape, 
+                                            const TDF_Label& theLabel)
 {
   std::string aName;
-  if(theSubShape->isNull() || theContext->shape()->isNull()) return aName;  
-  TopoDS_Shape aSubShape = theSubShape->impl<TopoDS_Shape>();
-  TopoDS_Shape aContext  = theContext->shape()->impl<TopoDS_Shape>();
-
   // check if the subShape is already in DF
-  Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aSubShape, selectionLabel());
+  Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(theShape, theLabel);
   Handle(TDataStd_Name) anAttr;
-  if(!aNS.IsNull()) { // in the document    
+  if(!aNS.IsNull() && !aNS->IsEmpty()) { // in the document    
        if(aNS->Label().FindAttribute(TDataStd_Name::GetID(), anAttr)) {
          aName = TCollection_AsciiString(anAttr->Get()).ToCString();
-         if(!aName.empty()) {
-           std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(theContext->document());
-           const TDF_Label& aLabel = aDoc->findNamingName(aName);
+         if(!aName.empty()) {      
+           const TDF_Label& aLabel = theDoc->findNamingName(aName);
                if(!aLabel.IsEqual(aNS->Label())) {
-                       aName.erase(); //something is wrong, to be checked!
+                 //aName.erase(); //something is wrong, to be checked!!!
+                 aName += "_SomethingWrong";
+                 return aName;
                }
                const TopoDS_Shape& aShape = aNS->Get();
                if(aShape.ShapeType() == TopAbs_COMPOUND) {
-                 std::string aFullName = aName + "_";
-                 TopoDS_Iterator it(aShape);
-                       int i(1);
-                       for (;it.More();it.Next(), i++) {
-                         if(it.Value() != aSubShape) continue;
-                         else {
-                               aName = aFullName + TCollection_AsciiString (i).ToCString();
-                               break;
-                         }
+                 std::string aPostFix("_");
+                 TopoDS_Iterator it(aShape);                   
+                 for (int i = 1;it.More();it.Next(), i++) {
+                   if(it.Value() == theShape) {
+                         aPostFix += TCollection_AsciiString (i).ToCString();
+                         aName    += aPostFix;
+                         break;
                        }
+                       else continue;                                          
+                 }
                }
          }     
        }
   }
+  return aName;
+}
+
+bool isTrivial (const TopTools_ListOfShape& theAncestors, TopTools_IndexedMapOfShape& theSMap)
+{
+// a trivial case: F1 & F2,  aNumber = 1, i.e. intersection gives 1 edge.
+  TopoDS_Compound aCmp;
+  BRep_Builder BB;
+  BB.MakeCompound(aCmp);
+  TopTools_ListIteratorOfListOfShape it(theAncestors);
+  for(;it.More();it.Next()) {
+       BB.Add(aCmp, it.Value());
+       theSMap.Add(it.Value());
+  }
+  int aNumber(0);
+  TopTools_IndexedDataMapOfShapeListOfShape aMap2;
+  TopExp::MapShapesAndAncestors(aCmp, TopAbs_EDGE, TopAbs_FACE, aMap2);
+  for (int i = 1; i <= aMap2.Extent(); i++) {
+       const TopoDS_Shape& aKey = aMap2.FindKey(i);
+       const TopTools_ListOfShape& anAncestors = aMap2.FindFromIndex(i);
+       if(anAncestors.Extent() > 1) aNumber++;
+  }
+  if(aNumber > 1) return false;
+  return true;
+}
+std::string Model_AttributeSelection::buildSubShapeName(std::shared_ptr<GeomAPI_Shape> theSubShape, 
+                                                           const ResultPtr& theContext)
+{
+  std::string aName;
+  if(theSubShape->isNull() || theContext->shape()->isNull()) return aName;  
+  TopoDS_Shape aSubShape = theSubShape->impl<TopoDS_Shape>();
+  TopoDS_Shape aContext  = theContext->shape()->impl<TopoDS_Shape>();
+  std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(theContext->document());
+
+  // check if the subShape is already in DF
+  aName = GetShapeName(aDoc, aSubShape, selectionLabel());
   if(aName.empty() ) { // not in the document!
     TopAbs_ShapeEnum aType = aSubShape.ShapeType();
        switch (aType) {
          case TopAbs_FACE:
-      // the Face should be in DF. If it is not a case it is an error ==> to be dbugged
-               
+      // the Face should be in DF. If it is not a case, it is an error ==> to be dbugged               
                break;
          case TopAbs_EDGE:
+                 {
+                 // name structure: F1 | F2 [| F3 | F4], where F1 & F2 the faces which gives the Edge in trivial case
+                 // if it is not atrivial case we use localization by neighbours. F3 & F4 - neighbour faces
+                 TopTools_IndexedMapOfShape aSMap; // map for ancestors of the sub-shape
+                 TopTools_IndexedDataMapOfShapeListOfShape aMap;
+                 TopExp::MapShapesAndAncestors(aContext, TopAbs_EDGE, TopAbs_FACE, aMap);
+                 bool isTrivialCase(true);
+                 for (int i = 1; i <= aMap.Extent(); i++) {
+                       const TopoDS_Shape& aKey = aMap.FindKey(i);
+                       if (aKey.IsNotEqual(aSubShape)) continue; // find exactly the selected key
+
+            const TopTools_ListOfShape& anAncestors = aMap.FindFromIndex(i);
+                       // check that it is not a trivial case (F1 & F2: aNumber = 1)
+                       isTrivialCase = isTrivial(anAncestors, aSMap);                  
+                       break;
+                 }
+
+                 TopTools_ListOfShape aListOfNbs;
+                 if(!isTrivialCase) { // find Neighbors
+                       TNaming_Localizer aLocalizer;
+                       TopTools_MapOfShape aMap3;
+                       aLocalizer.FindNeighbourg(aContext, aSubShape, aMap3);
+                       //int n = aMap3.Extent();
+                       TopTools_MapIteratorOfMapOfShape it(aMap3);
+                       for(;it.More();it.Next()) {
+                         const TopoDS_Shape& aNbShape = it.Key(); // neighbor edge
+                         //TopAbs_ShapeEnum aType = aNbShape.ShapeType();
+                         const TopTools_ListOfShape& aList  = aMap.FindFromKey(aNbShape);
+                         TopTools_ListIteratorOfListOfShape it2(aList);
+                         for(;it2.More();it2.Next()) {
+                               if(aSMap.Contains(it2.Value())) continue; // skip this Face
+                               aListOfNbs.Append(it2.Value());
+                         }
+                       }
+                 }  // else a trivial case
+                 
+                 // build name of the sub-shape Edge
+                 for(int i=1; i <= aSMap.Extent(); i++) {
+                       const TopoDS_Shape& aFace = aSMap.FindKey(i);
+                       std::string aFaceName = GetShapeName(aDoc, aFace, selectionLabel());
+                       if(i == 1)
+                         aName = aFaceName;
+                       else 
+                         aName += "|" + aFaceName;
+                 }
+                 TopTools_ListIteratorOfListOfShape itl(aListOfNbs);
+                 for (;itl.More();itl.Next()) {
+                       std::string aFaceName = GetShapeName(aDoc, itl.Value(), selectionLabel());
+                       aName += "|" + aFaceName;
+                 }               
+                 }
                  break;
+
          case TopAbs_VERTEX:
+                 // name structure (Monifold Topology): F1 | F2 | F3; intersection of 3 faces defines a vertex.
+                 {
+                       TopTools_IndexedDataMapOfShapeListOfShape aMap;
+                   TopExp::MapShapesAndAncestors(aContext, TopAbs_VERTEX, TopAbs_FACE, aMap);
+                       const TopTools_ListOfShape& aList2  = aMap.FindFromKey(aSubShape);
+                       TopTools_ListOfShape aList;
+                       TopTools_MapOfShape aFMap;
+#ifdef DEB_NAME
+                       int n = aList2.Extent(); //bug!
+                       TopTools_ListIteratorOfListOfShape itl2(aList2);
+                   for (int i = 1;itl2.More();itl2.Next(),i++) {
+                         if(aFMap.Add(itl2.Value()))
+                               aList.Append(itl2.Value());
+                       }
+                       n = aList.Extent();
+#endif
+                       TopTools_ListIteratorOfListOfShape itl(aList);
+                   for (int i = 1;itl.More();itl.Next(),i++) {
+                         const TopoDS_Shape& aFace = itl.Value();
+                         std::string aFaceName = GetShapeName(aDoc, aFace, selectionLabel());
+                         if(i == 1)
+                           aName = aFaceName;
+                         else 
+                           aName += "|" + aFaceName;
+                       }
+                 }
                  break;
-
        }
   }
   return aName;