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Task 3.8. Extrusion to any face
[modules/shaper.git] / src / GeomAlgoAPI / GeomAlgoAPI_ShapeTools.cpp
index c5bf768024a3e473734eae3696af4094b5872f5e..d1d3abe8b5317f5b03ee1e892e3e19c53f65b07f 100644 (file)
@@ -1,4 +1,4 @@
-// Copyright (C) 2014-2017  CEA/DEN, EDF R&D
+// Copyright (C) 2014-2019  CEA/DEN, EDF R&D
 //
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
 //
 // You should have received a copy of the GNU Lesser General Public
 // License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 //
-// See http://www.salome-platform.org/ or
-// email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
 //
 
 #include "GeomAlgoAPI_ShapeTools.h"
@@ -31,7 +30,6 @@
 #include <GeomAPI_Wire.h>
 
 #include <Bnd_Box.hxx>
-#include <BOPTools.hxx>
 #include <BRep_Builder.hxx>
 #include <BRepAdaptor_Curve.hxx>
 #include <BRepAlgo.hxx>
 #include <BRepExtrema_ExtCF.hxx>
 #include <BRepGProp.hxx>
 #include <BRepTools.hxx>
+#include <BRepTools_WireExplorer.hxx>
 #include <BRepTopAdaptor_FClass2d.hxx>
 #include <BRepClass_FaceClassifier.hxx>
 #include <Geom2d_Curve.hxx>
 #include <Geom2d_Curve.hxx>
 #include <BRepLib_CheckCurveOnSurface.hxx>
 #include <BRep_Tool.hxx>
+#include  <Geom_CylindricalSurface.hxx>
 #include <Geom_Line.hxx>
 #include <Geom_Plane.hxx>
 #include <GeomAPI_ProjectPointOnCurve.hxx>
+#include <GeomAPI_ShapeIterator.h>
 #include <GeomLib_IsPlanarSurface.hxx>
 #include <GeomLib_Tool.hxx>
 #include <GeomAPI_IntCS.hxx>
@@ -71,6 +72,7 @@
 #include <TopoDS_Shell.hxx>
 #include <TopoDS_Vertex.hxx>
 #include <TopoDS.hxx>
+#include <TopExp.hxx>
 #include <TopExp_Explorer.hxx>
 #include <TopTools_ListIteratorOfListOfShape.hxx>
 
 #include <TopoDS_Edge.hxx>
 
 //==================================================================================================
-double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
+static GProp_GProps props(const TopoDS_Shape& theShape)
 {
   GProp_GProps aGProps;
+
+  if (theShape.ShapeType() == TopAbs_EDGE || theShape.ShapeType() == TopAbs_WIRE)
+  {
+    BRepGProp::LinearProperties(theShape, aGProps);
+  }
+  else if (theShape.ShapeType() == TopAbs_FACE || theShape.ShapeType() == TopAbs_SHELL)
+  {
+    const Standard_Real anEps = 1.e-6;
+    BRepGProp::SurfaceProperties(theShape, aGProps, anEps);
+  }
+  else if (theShape.ShapeType() == TopAbs_SOLID || theShape.ShapeType() == TopAbs_COMPSOLID)
+  {
+    BRepGProp::VolumeProperties(theShape, aGProps);
+  }
+  else if (theShape.ShapeType() == TopAbs_COMPOUND)
+  {
+    for (TopoDS_Iterator anIt(theShape); anIt.More(); anIt.Next())
+    {
+      aGProps.Add(props(anIt.Value()));
+    }
+  }
+
+  return aGProps;
+}
+
+//==================================================================================================
+double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theShape)
+{
   if(!theShape.get()) {
     return 0.0;
   }
@@ -91,7 +121,19 @@ double GeomAlgoAPI_ShapeTools::volume(const std::shared_ptr<GeomAPI_Shape> theSh
     return 0.0;
   }
   const Standard_Real anEps = 1.e-6;
-  BRepGProp::VolumeProperties(aShape, aGProps, anEps);
+  TopExp_Explorer anExp(aShape, TopAbs_SOLID);
+  if (anExp.More()) { // return volume if there is at least one solid
+    double aVolume = 0.0;
+    for (; anExp.More(); anExp.Next()) {
+      GProp_GProps aGProps;
+      BRepGProp::VolumeProperties(anExp.Current(), aGProps, anEps);
+      aVolume += aGProps.Mass();
+    }
+    return aVolume;
+  }
+  // return surfaces area
+  GProp_GProps aGProps;
+  BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
   return aGProps.Mass();
 }
 
@@ -127,24 +169,50 @@ std::shared_ptr<GeomAPI_Pnt>
   gp_Pnt aCentre;
   if(aShape.ShapeType() == TopAbs_VERTEX) {
     aCentre = BRep_Tool::Pnt(TopoDS::Vertex(aShape));
-  } else if(aShape.ShapeType() == TopAbs_EDGE || aShape.ShapeType() == TopAbs_WIRE) {
-    BRepGProp::LinearProperties(aShape, aGProps);
-    aCentre = aGProps.CentreOfMass();
   } else {
-    const Standard_Real anEps = 1.e-6;
-    BRepGProp::SurfaceProperties(aShape, aGProps, anEps);
+    aGProps = props(aShape);
     aCentre = aGProps.CentreOfMass();
   }
+
   return std::shared_ptr<GeomAPI_Pnt>(new GeomAPI_Pnt(aCentre.X(), aCentre.Y(), aCentre.Z()));
 }
 
+//==================================================================================================
+double GeomAlgoAPI_ShapeTools::radius(const std::shared_ptr<GeomAPI_Face>& theCylinder)
+{
+  double aRadius = -1.0;
+  if (theCylinder->isCylindrical()) {
+    const TopoDS_Shape& aShape = theCylinder->impl<TopoDS_Shape>();
+    Handle(Geom_Surface) aSurf = BRep_Tool::Surface(TopoDS::Face(aShape));
+    Handle(Geom_CylindricalSurface) aCyl = Handle(Geom_CylindricalSurface)::DownCast(aSurf);
+    if (!aCyl.IsNull())
+      aRadius = aCyl->Radius();
+  }
+  return aRadius;
+}
+
+//==================================================================================================
+double GeomAlgoAPI_ShapeTools::minimalDistance(const GeomShapePtr& theShape1,
+                                               const GeomShapePtr& theShape2)
+{
+  const TopoDS_Shape& aShape1 = theShape1->impl<TopoDS_Shape>();
+  const TopoDS_Shape& aShape2 = theShape2->impl<TopoDS_Shape>();
+
+  BRepExtrema_DistShapeShape aDist(aShape1, aShape2);
+  aDist.Perform();
+  return aDist.IsDone() ? aDist.Value() : Precision::Infinite();
+}
+
 //==================================================================================================
 std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
   const std::shared_ptr<GeomAPI_Shape> theCompound,
   const GeomAPI_Shape::ShapeType theType,
-  ListOfShape& theCombinedShapes,
-  ListOfShape& theFreeShapes)
+  ListOfShape& theResuts)
 {
+
+  ListOfShape aResCombinedShapes;
+  ListOfShape aResFreeShapes;
+
   GeomShapePtr aResult = theCompound;
 
   if(!theCompound.get()) {
@@ -162,34 +230,43 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
     aTA = TopAbs_SOLID;
   }
 
-  theCombinedShapes.clear();
-  theFreeShapes.clear();
+  // map from the resulting shapes to minimal index of the used shape from theCompound list
+  std::map<GeomShapePtr, int> anInputOrder;
+  // map from ancestors-shapes to the index of shapes in theCompound
+  NCollection_DataMap<TopoDS_Shape, int> anAncestorsOrder;
 
   // Get free shapes.
+  int anOrder = 0;
   const TopoDS_Shape& aShapesComp = theCompound->impl<TopoDS_Shape>();
-  for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next() ) {
+  for(TopoDS_Iterator anIter(aShapesComp); anIter.More(); anIter.Next(), anOrder++) {
     const TopoDS_Shape& aShape = anIter.Value();
     if(aShape.ShapeType() > aTA) {
       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
       aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
-      theFreeShapes.push_back(aGeomShape);
+      aResFreeShapes.push_back(aGeomShape);
+      anInputOrder[aGeomShape] = anOrder;
+    } else {
+      for(TopExp_Explorer anExp(aShape, aTA); anExp.More(); anExp.Next()) {
+        anAncestorsOrder.Bind(anExp.Current(), anOrder);
+      }
     }
   }
 
-  // Map subshapes and shapes.
-  BOPCol_IndexedDataMapOfShapeListOfShape aMapSA;
-  BOPTools::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
+  // Map sub-shapes and shapes.
+  TopTools_IndexedDataMapOfShapeListOfShape aMapSA;
+  TopExp::MapShapesAndAncestors(aShapesComp, aTS, aTA, aMapSA);
   if(aMapSA.IsEmpty()) {
     return aResult;
   }
+  theResuts.clear();
 
-  // Get all shapes with common subshapes and free shapes.
+  // Get all shapes with common sub-shapes and free shapes.
   NCollection_Map<TopoDS_Shape> aFreeShapes;
   NCollection_Vector<NCollection_Map<TopoDS_Shape>> aShapesWithCommonSubshapes;
-  for(BOPCol_IndexedDataMapOfShapeListOfShape::Iterator
+  for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
       anIter(aMapSA); anIter.More(); anIter.Next()) {
     const TopoDS_Shape& aShape = anIter.Key();
-    BOPCol_ListOfShape& aListOfShape = anIter.ChangeValue();
+    TopTools_ListOfShape& aListOfShape = anIter.ChangeValue();
     if(aListOfShape.IsEmpty()) {
       continue;
     }
@@ -200,40 +277,39 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
     } else {
       NCollection_List<TopoDS_Shape> aTempList;
       NCollection_Map<TopoDS_Shape> aTempMap;
-      const TopoDS_Shape& aF = aListOfShape.First();
-      const TopoDS_Shape& aL = aListOfShape.Last();
-      aTempList.Append(aF);
-      aTempList.Append(aL);
-      aTempMap.Add(aF);
-      aTempMap.Add(aL);
-      aFreeShapes.Remove(aF);
-      aFreeShapes.Remove(aL);
+      for (TopTools_ListOfShape::Iterator aListIt(aListOfShape); aListIt.More(); aListIt.Next()) {
+        aTempList.Append(aListIt.Value());
+        aTempMap.Add(aListIt.Value());
+        aFreeShapes.Remove(aListIt.Value());
+      }
       aListOfShape.Clear();
       for(NCollection_List<TopoDS_Shape>::Iterator
           aTempIter(aTempList); aTempIter.More(); aTempIter.Next()) {
         const TopoDS_Shape& aTempShape = aTempIter.Value();
-        for(BOPCol_IndexedDataMapOfShapeListOfShape::Iterator
+        for(TopTools_IndexedDataMapOfShapeListOfShape::Iterator
             anIter(aMapSA); anIter.More(); anIter.Next()) {
-          BOPCol_ListOfShape& aTempListOfShape = anIter.ChangeValue();
+          TopTools_ListOfShape& aTempListOfShape = anIter.ChangeValue();
           if(aTempListOfShape.IsEmpty()) {
             continue;
           } else if(aTempListOfShape.Size() == 1 && aTempListOfShape.First() == aTempShape) {
             aTempListOfShape.Clear();
           } else if(aTempListOfShape.Size() > 1) {
-            if(aTempListOfShape.First() == aTempShape) {
-              const TopoDS_Shape& aTL = aTempListOfShape.Last();
-              if(aTempMap.Add(aTL)) {
-                aTempList.Append(aTL);
-                aFreeShapes.Remove(aTL);
-              }
-              aTempListOfShape.Clear();
-            } else if(aTempListOfShape.Last() == aTempShape) {
-              const TopoDS_Shape& aTF = aTempListOfShape.First();
-              if(aTempMap.Add(aTF)) {
-                aTempList.Append(aTF);
-                aFreeShapes.Remove(aTF);
+            TopTools_ListOfShape::Iterator anIt1(aTempListOfShape);
+            for (; anIt1.More(); anIt1.Next()) {
+              if (anIt1.Value() == aTempShape) {
+                TopTools_ListOfShape::Iterator anIt2(aTempListOfShape);
+                for (; anIt2.More(); anIt2.Next())
+                {
+                  if (anIt2.Value() != anIt1.Value()) {
+                    if (aTempMap.Add(anIt2.Value())) {
+                      aTempList.Append(anIt2.Value());
+                      aFreeShapes.Remove(anIt2.Value());
+                    }
+                  }
+                }
+                aTempListOfShape.Clear();
+                break;
               }
-              aTempListOfShape.Clear();
             }
           }
         }
@@ -242,12 +318,13 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
     }
   }
 
-  // Combine shapes with common subshapes.
+  // Combine shapes with common sub-shapes.
   for(NCollection_Vector<NCollection_Map<TopoDS_Shape>>::Iterator
       anIter(aShapesWithCommonSubshapes); anIter.More(); anIter.Next()) {
     TopoDS_Shell aShell;
     TopoDS_CompSolid aCSolid;
     TopoDS_Builder aBuilder;
+    anOrder = -1;
     theType ==
       GeomAPI_Shape::COMPSOLID ? aBuilder.MakeCompSolid(aCSolid) : aBuilder.MakeShell(aShell);
     NCollection_Map<TopoDS_Shape>& aShapesMap = anIter.ChangeValue();
@@ -257,13 +334,17 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
         theType ==
           GeomAPI_Shape::COMPSOLID ? aBuilder.Add(aCSolid, aShape) : aBuilder.Add(aShell, aShape);
         aShapesMap.Remove(aShape);
+        int aThisOrder = anAncestorsOrder.Find(aShape);
+        if (anOrder == -1 || aThisOrder < anOrder)
+          anOrder = aThisOrder; // take the minimum order position
       }
     }
     std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
     TopoDS_Shape* aSh = theType == GeomAPI_Shape::COMPSOLID ? new TopoDS_Shape(aCSolid) :
                                                               new TopoDS_Shape(aShell);
     aGeomShape->setImpl<TopoDS_Shape>(aSh);
-    theCombinedShapes.push_back(aGeomShape);
+    aResCombinedShapes.push_back(aGeomShape);
+    anInputOrder[aGeomShape] = anOrder;
   }
 
   // Adding free shapes.
@@ -272,25 +353,30 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::combineShapes(
     if(aFreeShapes.Contains(aShape)) {
       std::shared_ptr<GeomAPI_Shape> aGeomShape(new GeomAPI_Shape);
       aGeomShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aShape));
-      theFreeShapes.push_back(aGeomShape);
+      aResFreeShapes.push_back(aGeomShape);
+      anInputOrder[aGeomShape] = anAncestorsOrder.Find(aShape);
     }
   }
 
-  if(theCombinedShapes.size() == 1 && theFreeShapes.size() == 0) {
-    aResult = theCombinedShapes.front();
-  } else if(theCombinedShapes.size() == 0 && theFreeShapes.size() == 1) {
-    aResult = theFreeShapes.front();
+  if(aResCombinedShapes.size() == 1 && aResFreeShapes.size() == 0) {
+    aResult = aResCombinedShapes.front();
+    theResuts.push_back(aResult);
+  } else if(aResCombinedShapes.size() == 0 && aResFreeShapes.size() == 1) {
+    aResult = aResFreeShapes.front();
+    theResuts.push_back(aResult);
   } else {
     TopoDS_Compound aResultComp;
     TopoDS_Builder aBuilder;
     aBuilder.MakeCompound(aResultComp);
-    for(ListOfShape::const_iterator anIter = theCombinedShapes.cbegin();
-        anIter != theCombinedShapes.cend(); anIter++) {
-      aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
-    }
-    for(ListOfShape::const_iterator anIter = theFreeShapes.cbegin();
-        anIter != theFreeShapes.cend(); anIter++) {
-      aBuilder.Add(aResultComp, (*anIter)->impl<TopoDS_Shape>());
+    // put to result compound and result list in accordance to the order numbers
+    std::map<GeomShapePtr, int>::iterator anInputIter = anInputOrder.begin();
+    std::map<int, GeomShapePtr> aNums;
+    for(; anInputIter != anInputOrder.end(); anInputIter++)
+      aNums[anInputIter->second] = anInputIter->first;
+    std::map<int, GeomShapePtr>::iterator aNumsIter = aNums.begin();
+    for(; aNumsIter != aNums.end(); aNumsIter++) {
+      aBuilder.Add(aResultComp, (aNumsIter->second)->impl<TopoDS_Shape>());
+      theResuts.push_back(aNumsIter->second);
     }
     aResult->setImpl(new TopoDS_Shape(aResultComp));
   }
@@ -336,7 +422,7 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
 {
   GeomShapePtr aResult = theCompound;
 
-  if(!theCompound.get()) {
+  if (!theCompound.get()) {
     return aResult;
   }
 
@@ -345,23 +431,24 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
   addSimpleShapeToList(anInShape, anUngroupedShapes);
 
   // Iterate over all shapes and find shapes with shared vertices.
-  TopTools_ListOfShape aMapOrder;
-  BOPCol_DataMapOfShapeListOfShape aVertexShapesMap;
-  for(NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
-      aShapesIt.More();
-      aShapesIt.Next()) {
+  TopTools_ListOfShape allVertices;
+  TopTools_DataMapOfShapeListOfShape aVertexShapesMap;
+  for (NCollection_List<TopoDS_Shape>::Iterator aShapesIt(anUngroupedShapes);
+    aShapesIt.More();
+    aShapesIt.Next()) {
     const TopoDS_Shape& aShape = aShapesIt.Value();
-    for(TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
-        aShapeExp.More();
-        aShapeExp.Next()) {
+    for (TopExp_Explorer aShapeExp(aShape, TopAbs_VERTEX);
+      aShapeExp.More();
+      aShapeExp.Next()) {
       const TopoDS_Shape& aVertex = aShapeExp.Current();
       if (!aVertexShapesMap.IsBound(aVertex)) {
         NCollection_List<TopoDS_Shape> aList;
         aList.Append(aShape);
-        aMapOrder.Append(aVertex);
+        allVertices.Append(aVertex);
         aVertexShapesMap.Bind(aVertex, aList);
-      } else {
-        if(!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
+      }
+      else {
+        if (!aVertexShapesMap.ChangeFind(aVertex).Contains(aShape)) {
           aVertexShapesMap.ChangeFind(aVertex).Append(aShape);
         }
       }
@@ -369,55 +456,56 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
   }
 
   // Iterate over the map and group shapes.
-  NCollection_Vector<TopTools_ListOfShape> aGroups;
-  while (!aMapOrder.IsEmpty()) {
+  NCollection_Vector<TopTools_MapOfShape> aGroups; // groups of shapes connected by vertices
+  while (!allVertices.IsEmpty()) {
     // Get first group of shapes in map, and then unbind it.
-    const TopoDS_Shape& aKey = aMapOrder.First();
-    TopTools_ListOfShape aGroupedShapes = aVertexShapesMap.Find(aKey);
+    const TopoDS_Shape& aKey = allVertices.First();
+    TopTools_ListOfShape aConnectedShapes = aVertexShapesMap.Find(aKey);
     aVertexShapesMap.UnBind(aKey);
-    aMapOrder.Remove(aKey);
+    allVertices.Remove(aKey);
     // Iterate over shapes in this group and add to it shapes from groups in map.
-    for(TopTools_ListOfShape::Iterator aGroupIt(aGroupedShapes);
-        aGroupIt.More(); aGroupIt.Next()) {
-      const TopoDS_Shape& aGroupedShape = aGroupIt.Value();
+    for (TopTools_ListOfShape::Iterator aConnectedIt(aConnectedShapes);
+      aConnectedIt.More(); aConnectedIt.Next()) {
+      const TopoDS_Shape& aConnected = aConnectedIt.Value();
       TopTools_ListOfShape aKeysToUnbind;
-      for(TopTools_ListOfShape::Iterator aKeysIt(aMapOrder);
-          aKeysIt.More();
-          aKeysIt.Next()) {
-        const TopTools_ListOfShape& aGroupInMap = aVertexShapesMap(aKeysIt.Value());
-        if(!aGroupInMap.Contains(aGroupedShape)) {
-          // Group in map does not containt shape from our group, so go to the next group in map.
+      for (TopTools_ListOfShape::Iterator aKeysIt(allVertices);
+        aKeysIt.More();
+        aKeysIt.Next()) {
+        const TopTools_ListOfShape& anOtherConnected = aVertexShapesMap(aKeysIt.Value());
+        if (!anOtherConnected.Contains(aConnected)) {
+          // Other connected group does not contain shape from our connected group
           continue;
         }
-        // Iterate over shape in group in map, and add new shapes into our group.
-        for(TopTools_ListOfShape::Iterator aGroupInMapIt(aGroupInMap);
-            aGroupInMapIt.More();
-            aGroupInMapIt.Next()) {
-          const TopoDS_Shape& aShape = aGroupInMapIt.Value();
-          if (!aGroupedShapes.Contains(aShape)) {
-            aGroupedShapes.Append(aShape);
+        // Other is connected to our, so add them to our connected
+        for (TopTools_ListOfShape::Iterator anOtherIt(anOtherConnected);
+          anOtherIt.More();
+          anOtherIt.Next()) {
+          const TopoDS_Shape& aShape = anOtherIt.Value();
+          if (!aConnectedShapes.Contains(aShape)) {
+            aConnectedShapes.Append(aShape);
           }
         }
         // Save key to unbind from this map.
         aKeysToUnbind.Append(aKeysIt.Value());
       }
       // Unbind groups from map that we added to our group.
-      for(TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
-          aKeysIt.More();
-          aKeysIt.Next()) {
+      for (TopTools_ListOfShape::Iterator aKeysIt(aKeysToUnbind);
+        aKeysIt.More();
+        aKeysIt.Next()) {
         aVertexShapesMap.UnBind(aKeysIt.Value());
-        aMapOrder.Remove(aKeysIt.Value());
+        allVertices.Remove(aKeysIt.Value());
       }
     }
-    // Sort shapes.
-    TopTools_ListOfShape aSortedGroup;
-    for(int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
-      TopTools_ListOfShape::Iterator anIt(aGroupedShapes);
+    // Sort shapes from the most complicated to the simplest ones
+    TopTools_MapOfShape aSortedGroup;
+    for (int aST = TopAbs_COMPOUND; aST <= TopAbs_SHAPE; ++aST) {
+      TopTools_ListOfShape::Iterator anIt(aConnectedShapes);
       while (anIt.More()) {
-        if(anIt.Value().ShapeType() == aST) {
-          aSortedGroup.Append(anIt.Value());
-          aGroupedShapes.Remove(anIt);
-        } else {
+        if (anIt.Value().ShapeType() == aST) {
+          aSortedGroup.Add(anIt.Value());
+          aConnectedShapes.Remove(anIt);
+        }
+        else {
           anIt.Next();
         }
       }
@@ -428,19 +516,25 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
   TopoDS_Compound aCompound;
   BRep_Builder aBuilder;
   aBuilder.MakeCompound(aCompound);
-  ListOfShape aCompSolids, aFreeSolids;
-  for(NCollection_Vector<NCollection_List<TopoDS_Shape>>::Iterator
-      anIt(aGroups); anIt.More(); anIt.Next()) {
-    NCollection_List<TopoDS_Shape> aGroup = anIt.Value();
+  ListOfShape aSolids;
+  for (NCollection_Vector<TopTools_MapOfShape>::Iterator anIt(aGroups); anIt.More(); anIt.Next()) {
+    const TopTools_MapOfShape& aGroup = anIt.ChangeValue();
     GeomShapePtr aGeomShape(new GeomAPI_Shape());
     if(aGroup.Size() == 1) {
-      aGeomShape->setImpl(new TopoDS_Shape(aGroup.First()));
+      TopTools_MapOfShape::Iterator aOneShapeIter(aGroup);
+      aGeomShape->setImpl(new TopoDS_Shape(aOneShapeIter.Value()));
     } else {
-      aGeomShape->setImpl(new TopoDS_Shape(makeCompound(aGroup)));
+      // make sub-shapes in the group have order same as in original shape
+      TopTools_ListOfShape anOrderedGoup;
+      NCollection_List<TopoDS_Shape>::Iterator anUngrouped(anUngroupedShapes);
+      for (; anUngrouped.More(); anUngrouped.Next()) {
+        if (aGroup.Contains(anUngrouped.Value()))
+          anOrderedGoup.Append(anUngrouped.Value());
+      }
+      aGeomShape->setImpl(new TopoDS_Shape(makeCompound(anOrderedGoup)));
       aGeomShape = GeomAlgoAPI_ShapeTools::combineShapes(aGeomShape,
                                                          GeomAPI_Shape::COMPSOLID,
-                                                         aCompSolids,
-                                                         aFreeSolids);
+                                                         aSolids);
     }
     aBuilder.Add(aCompound, aGeomShape->impl<TopoDS_Shape>());
   }
@@ -452,6 +546,24 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::groupSharedTopology(
   return aResult;
 }
 
+//==================================================================================================
+bool GeomAlgoAPI_ShapeTools::hasSharedTopology(const ListOfShape& theShapes,
+                                               const GeomAPI_Shape::ShapeType theShapeType)
+{
+  TopTools_IndexedMapOfShape aSubs;
+  for (ListOfShape::const_iterator anIt = theShapes.begin(); anIt != theShapes.end(); ++anIt) {
+    TopTools_IndexedMapOfShape aCurSubs;
+    TopExp::MapShapes((*anIt)->impl<TopoDS_Shape>(), (TopAbs_ShapeEnum)theShapeType, aCurSubs);
+    for (TopTools_IndexedMapOfShape::Iterator aSubIt(aCurSubs); aSubIt.More(); aSubIt.Next()) {
+      if (aSubs.Contains(aSubIt.Value()))
+        return true;
+      else
+        aSubs.Add(aSubIt.Value());
+    }
+  }
+  return false;
+}
+
 //==================================================================================================
 std::list<std::shared_ptr<GeomAPI_Pnt> >
   GeomAlgoAPI_ShapeTools::getBoundingBox(const ListOfShape& theShapes, const double theEnlarge)
@@ -488,29 +600,6 @@ std::list<std::shared_ptr<GeomAPI_Pnt> >
   return aResultPoints;
 }
 
-//==================================================================================================
-std::shared_ptr<GeomAPI_Shape>
-  GeomAlgoAPI_ShapeTools::faceToInfinitePlane(const std::shared_ptr<GeomAPI_Shape> theFace)
-{
-  if (!theFace.get())
-    return std::shared_ptr<GeomAPI_Shape>();
-
-  TopoDS_Face aPlaneFace = TopoDS::Face(theFace->impl<TopoDS_Shape>());
-  if (aPlaneFace.IsNull())
-    return std::shared_ptr<GeomAPI_Shape>();
-
-  Handle(Geom_Plane) aPlane = Handle(Geom_Plane)::DownCast(BRep_Tool::Surface(aPlaneFace));
-  if (aPlane.IsNull())
-    return std::shared_ptr<GeomAPI_Shape>();
-
-  // make an infinity face on the plane
-  TopoDS_Shape anInfiniteFace = BRepBuilderAPI_MakeFace(aPlane->Pln()).Shape();
-
-  std::shared_ptr<GeomAPI_Shape> aResult(new GeomAPI_Shape);
-  aResult->setImpl(new TopoDS_Shape(anInfiniteFace));
-  return aResult;
-}
-
 //==================================================================================================
 std::shared_ptr<GeomAPI_Face> GeomAlgoAPI_ShapeTools::fitPlaneToBox(
   const std::shared_ptr<GeomAPI_Shape> thePlane,
@@ -571,23 +660,26 @@ void GeomAlgoAPI_ShapeTools::findBounds(const std::shared_ptr<GeomAPI_Shape> the
                                         std::shared_ptr<GeomAPI_Vertex>& theV1,
                                         std::shared_ptr<GeomAPI_Vertex>& theV2)
 {
-  if(!theShape.get()) {
-    std::shared_ptr<GeomAPI_Vertex> aVertex(new GeomAPI_Vertex);
+  static GeomVertexPtr aVertex;
+  if (!aVertex) {
+    aVertex = GeomVertexPtr(new GeomAPI_Vertex);
     aVertex->setImpl(new TopoDS_Vertex());
-    theV1 = aVertex;
-    theV2 = aVertex;
-    return;
   }
 
-  const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
-  TopoDS_Vertex aV1, aV2;
-  ShapeAnalysis::FindBounds(aShape, aV1, aV2);
-
-  std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
-  aGeomV1->setImpl(new TopoDS_Vertex(aV1));
-  aGeomV2->setImpl(new TopoDS_Vertex(aV2));
-  theV1 = aGeomV1;
-  theV2 = aGeomV2;
+  theV1 = aVertex;
+  theV2 = aVertex;
+
+  if (theShape) {
+    const TopoDS_Shape& aShape = theShape->impl<TopoDS_Shape>();
+    TopoDS_Vertex aV1, aV2;
+    ShapeAnalysis::FindBounds(aShape, aV1, aV2);
+
+    std::shared_ptr<GeomAPI_Vertex> aGeomV1(new GeomAPI_Vertex()), aGeomV2(new GeomAPI_Vertex());
+    aGeomV1->setImpl(new TopoDS_Vertex(aV1));
+    aGeomV2->setImpl(new TopoDS_Vertex(aV2));
+    theV1 = aGeomV1;
+    theV2 = aGeomV2;
+  }
 }
 
 //==================================================================================================
@@ -841,13 +933,8 @@ void GeomAlgoAPI_ShapeTools::splitShape(const std::shared_ptr<GeomAPI_Shape>& th
   }
 
   aBOP.Perform();
-#ifdef USE_OCCT_720
   if (aBOP.HasErrors())
     return;
-#else
-  if (aBOP.ErrorStatus())
-    return;
-#endif
 
   // Collect splits
   const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
@@ -891,13 +978,8 @@ void GeomAlgoAPI_ShapeTools::splitShape_p(const std::shared_ptr<GeomAPI_Shape>&
   }
 
   aBOP.Perform();
-#ifdef USE_OCCT_720
   if (aBOP.HasErrors())
     return;
-#else
-  if (aBOP.ErrorStatus())
-    return;
-#endif
 
   // Collect splits
   const TopTools_ListOfShape& aSplits = aBOP.Modified(aBaseEdge);
@@ -941,6 +1023,7 @@ std::shared_ptr<GeomAPI_Shape> GeomAlgoAPI_ShapeTools::findShape(
 }
 
 //==================================================================================================
+#ifdef FEATURE_MULTIROTATION_TWO_DIRECTIONS
 std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
                                     const std::shared_ptr<GeomAPI_Shape> theBaseShape,
                                     const std::shared_ptr<GeomAPI_Ax1> theAxis)
@@ -956,17 +1039,79 @@ std::shared_ptr<GeomAPI_Dir> GeomAlgoAPI_ShapeTools::buildDirFromAxisAndShape(
                                                     aCentreOfMassPoint.Z()-aPoint.Z()));
   return aDir;
 }
+#endif
 
 //==================================================================================================
+static TopoDS_Wire fixParametricGaps(const TopoDS_Wire& theWire)
+{
+  TopoDS_Wire aFixedWire;
+  Handle(Geom_Curve) aPrevCurve;
+  double aPrevLastParam = 0.0;
+
+  BRep_Builder aBuilder;
+  aBuilder.MakeWire(aFixedWire);
+
+  BRepTools_WireExplorer aWExp(theWire);
+  for (; aWExp.More(); aWExp.Next()) {
+    TopoDS_Edge anEdge = aWExp.Current();
+    double aFirst, aLast;
+    Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
+    if (aCurve == aPrevCurve) {
+      // if parametric gap occurs, create new edge based on the copied curve
+      aCurve = Handle(Geom_Curve)::DownCast(aCurve->Copy());
+      TopoDS_Vertex aV1, aV2;
+      TopExp::Vertices(anEdge, aV1, aV2);
+      anEdge = TopoDS::Edge(anEdge.EmptyCopied());
+      aBuilder.UpdateEdge(anEdge, aCurve, BRep_Tool::Tolerance(anEdge));
+      aBuilder.Add(anEdge, aV1);
+      aBuilder.Add(anEdge, aV2);
+    }
+
+    aBuilder.Add(aFixedWire, anEdge);
+
+    aPrevCurve = aCurve;
+    aPrevLastParam = aLast;
+  }
+
+  return aFixedWire;
+}
+
 std::shared_ptr<GeomAPI_Edge> GeomAlgoAPI_ShapeTools::wireToEdge(
       const std::shared_ptr<GeomAPI_Wire>& theWire)
 {
   GeomEdgePtr anEdge;
   if (theWire) {
-    const TopoDS_Wire& aWire = theWire->impl<TopoDS_Wire>();
+    TopoDS_Wire aWire = theWire->impl<TopoDS_Wire>();
+    // Workaround: when concatenate a wire consisting of two edges based on the same B-spline curve
+    // (non-periodic, but having equal start and end points), first of which is placed at the end
+    // on the curve and second is placed at the start, this workaround copies second curve to avoid
+    // treating these edges as a single curve by setting trim parameters.
+    aWire = fixParametricGaps(aWire);
     TopoDS_Edge aNewEdge = BRepAlgo::ConcatenateWireC0(aWire);
     anEdge = GeomEdgePtr(new GeomAPI_Edge);
     anEdge->setImpl(new TopoDS_Edge(aNewEdge));
   }
   return anEdge;
 }
+
+ListOfShape GeomAlgoAPI_ShapeTools::getLowLevelSubShapes(const GeomShapePtr& theShape)
+{
+  ListOfShape aSubShapes;
+
+  if (!theShape->isCompound() && !theShape->isCompSolid() &&
+      !theShape->isShell() && !theShape->isWire()) {
+    return aSubShapes;
+  }
+
+  for (GeomAPI_ShapeIterator anIt(theShape); anIt.more(); anIt.next()) {
+    GeomShapePtr aSubShape = anIt.current();
+    if (aSubShape->isVertex() || aSubShape->isEdge() ||
+        aSubShape->isFace() || aSubShape->isSolid()) {
+      aSubShapes.push_back(aSubShape);
+    } else {
+      aSubShapes.splice(aSubShapes.end(), getLowLevelSubShapes(aSubShape));
+    }
+  }
+
+  return aSubShapes;
+}
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