X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FHYDROData%2FHYDROData_PolylineOperator.cxx;h=acec03bc92e29fc11ce8ba12797f2a41b99bdb54;hb=f165c19739951b4490e4c86df56b603935fc0d16;hp=dff7ce3eaadc044141048e6117066b4d3b0d6a6b;hpb=55fe0d2de7e15a256965d71280dc61fd58863d7e;p=modules%2Fhydro.git

diff --git a/src/HYDROData/HYDROData_PolylineOperator.cxx b/src/HYDROData/HYDROData_PolylineOperator.cxx
index dff7ce3e..acec03bc 100644
--- a/src/HYDROData/HYDROData_PolylineOperator.cxx
+++ b/src/HYDROData/HYDROData_PolylineOperator.cxx
@@ -18,10 +18,23 @@
 
 #include <HYDROData_PolylineOperator.h>
 #include <HYDROData_Document.h>
+#include <BRepAdaptor_Curve.hxx>
+#include <BRep_Builder.hxx>
 #include <BRepBuilderAPI_MakeEdge2d.hxx>
 #include <BRepBuilderAPI_MakeWire.hxx>
+#include <Extrema_ExtCC.hxx>
+#include <Extrema_ExtPC.hxx>
+#include <NCollection_Vector.hxx>
+#include <Precision.hxx>
+#include <ShapeAnalysis_TransferParametersProj.hxx>
+#include <ShapeBuild_Edge.hxx>
+#include <TopoDS.hxx>
 #include <TopoDS_Edge.hxx>
 #include <TopoDS_Wire.hxx>
+#include <TopExp.hxx>
+#include <TopExp_Explorer.hxx>
+#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
+#include <QString>
 
 template<class T> void append( std::vector<T>& theList, const std::vector<T>& theList2 )
 {
@@ -36,139 +49,728 @@ template<class T> void append( std::vector<T>& theList, const std::vector<T>& th
     theList[i] = theList2[j];
 }
 
+static TopoDS_Edge ReplaceVertex(
+  const TopoDS_Edge& theEdge, Standard_Integer theVertexIndex)
+{
+  TopoDS_Vertex aVertices[] =
+    {TopExp::FirstVertex(theEdge), TopExp::LastVertex(theEdge)};
+  const TopAbs_Orientation aOrient = theEdge.Orientation();
+  if (aOrient == TopAbs_REVERSED)
+  {
+    theVertexIndex ^= 1;
+  }
+  aVertices[theVertexIndex].EmptyCopy();
+  aVertices[0].Orientation(TopAbs_FORWARD);
+  aVertices[1].Orientation(TopAbs_REVERSED);
+  TopoDS_Edge aFE = TopoDS::Edge(theEdge.Oriented(TopAbs_FORWARD));
+  TopoDS_Edge aNewEdge =
+    ShapeBuild_Edge().CopyReplaceVertices(aFE, aVertices[0], aVertices[1]);
+  return TopoDS::Edge(aNewEdge.Oriented(aOrient));
+}
+
+static Standard_Boolean WireToCurve(
+  const TopoDS_Wire& theWire,
+  NCollection_Vector<TopoDS_Edge>& theEdges,
+  Standard_Boolean& theIsClosed)
+{
+  TopTools_IndexedDataMapOfShapeListOfShape aVertexToEdges;
+  TopExp::MapShapesAndAncestors(theWire,
+    TopAbs_VERTEX, TopAbs_EDGE, aVertexToEdges);
+  const Standard_Integer aVCount = aVertexToEdges.Extent();
+  if (aVCount == 0)
+  {
+    return Standard_False;
+  }
+
+  {
+    Standard_Integer aEndCount = 0;
+    for (Standard_Integer aVN = 1; aVN <= aVCount; ++aVN)
+    {
+      const Standard_Integer aEdgeCount =
+        aVertexToEdges.FindFromIndex(aVN).Extent();
+      if (aEdgeCount == 1)
+      {
+        ++aEndCount;
+      }
+      if (aEdgeCount > 2)
+      {
+        return Standard_False;
+      }
+    }
+    theIsClosed = (aEndCount == 0);
+    if (!theIsClosed && aEndCount != 2)
+    {
+      return Standard_False;
+    }
+  }
+
+  Standard_Integer aVN = 1;
+  if (!theIsClosed)
+  {
+    while (aVN <= aVCount &&
+      aVertexToEdges.FindFromIndex(aVN).Extent() == 2)
+    {
+      ++aVN;
+    }
+  }
+
+  TopTools_ListOfShape* aEdges = &aVertexToEdges.ChangeFromIndex(aVN);
+  while (!aEdges->IsEmpty())
+  {
+    const TopoDS_Edge aEdge = TopoDS::Edge(aEdges->First());
+    aEdges->RemoveFirst();
+    theEdges.Append(aEdge);
+    Standard_Integer aVN2 =
+      aVertexToEdges.FindIndex(TopExp::FirstVertex(aEdge));
+    if (aVN2 == aVN)
+    {
+      aVN2 = aVertexToEdges.FindIndex(TopExp::LastVertex(aEdge));
+    }
+    aVN = aVN2;
+
+    aEdges = &aVertexToEdges.ChangeFromIndex(aVN2);
+    if (aEdges->First().IsEqual(aEdge))
+    {
+      aEdges->RemoveFirst();
+    }
+    else
+    {
+      const TopoDS_Edge aEdge = TopoDS::Edge(aEdges->First());
+      aEdges->Clear();
+      aEdges->Append(aEdge);
+    }
+  }
+  return (!theIsClosed && theEdges.Size() == aVCount - 1) ||
+    (theIsClosed && theEdges.Size() == aVCount);
+}
+
+static void CurveToWire(
+  const NCollection_Vector<TopoDS_Edge>& theEdges, TopoDS_Wire& theWire)
+{
+  BRep_Builder aBulder;
+  aBulder.MakeWire(theWire);
+  NCollection_Vector<TopoDS_Edge>::Iterator aEIt(theEdges);
+  for (; aEIt.More(); aEIt.Next())
+  {
+    aBulder.Add(theWire, aEIt.Value());
+  }
+}
+
+static void CurveToWire(
+  const NCollection_Vector<TopoDS_Edge>& theEdges1,
+  const NCollection_Vector<TopoDS_Edge>& theEdges2,
+  TopoDS_Wire& theWire)
+{
+  BRep_Builder aBulder;
+  aBulder.MakeWire(theWire);
+  const NCollection_Vector<TopoDS_Edge>* aEdges[] = {&theEdges1, &theEdges2};
+  for (Standard_Integer aEI = 0; aEI < 2; ++aEI)
+  {
+    NCollection_Vector<TopoDS_Edge>::Iterator aEIt(*aEdges[aEI]);
+    for (; aEIt.More(); aEIt.Next())
+    {
+      aBulder.Add(theWire, aEIt.Value());
+    }
+  }
+}
+
+static Standard_Real ProjectPointToCurve(
+  const gp_Pnt& thePoint,
+  const Adaptor3d_Curve& theCurve,
+  Standard_Real& theParameter)
+{
+  Extrema_ExtPC aAlgo(thePoint, theCurve);
+  Standard_Integer aMinEN = -2;
+  Standard_Real aMinSqDist = DBL_MAX;
+  if (aAlgo.IsDone())
+  {
+    const Standard_Integer aECount = aAlgo.NbExt();
+    for (Standard_Integer aEN = 1; aEN <= aECount; ++aEN)
+    {
+      const gp_Pnt& aP = aAlgo.Point(aEN).Value();
+      const Standard_Real aSqDist = thePoint.SquareDistance(aP);
+      if (aMinSqDist > aSqDist)
+      {
+        aMinSqDist = aSqDist;
+        aMinEN = aEN;
+      }
+    }
+  }
+
+  const Standard_Real aParams[] =
+    {theCurve.FirstParameter(), theCurve.LastParameter()};
+  const gp_Pnt aEnds[] =
+    {theCurve.Value(aParams[0]), theCurve.Value(aParams[1])};
+  const Standard_Real aSqDists[] =
+    {thePoint.SquareDistance(aEnds[0]), thePoint.SquareDistance(aEnds[1])};
+  for (Standard_Integer aEI = 0; aEI < 2; ++aEI)
+  {
+    if (aMinSqDist > aSqDists[aEI])
+    {
+      aMinSqDist = aSqDists[aEI];
+      aMinEN = -aEI;
+    }
+  }
+
+  if (aMinEN <= 0)
+  {
+    theParameter = aParams[-aMinEN];
+    return aMinSqDist;
+  }
+
+  const Extrema_POnCurv& aPOnC = aAlgo.Point(aMinEN);
+  const gp_Pnt& aPoint = aPOnC.Value();
+  theParameter = aPOnC.Parameter();
+  for (Standard_Integer aEI = 0; aEI < 2; ++aEI)
+  {
+    if (Abs(theParameter - aParams[aEI]) < Precision::PConfusion() ||
+      aPoint.SquareDistance(aEnds[aEI]) < Precision::SquareConfusion())
+    {
+      theParameter = aParams[aEI];
+    }
+  }
+  return aMinSqDist;
+}
+
+static Standard_Real ProjectPointToEdge(
+  const gp_Pnt& thePoint,
+  const TopoDS_Edge& theEdge,
+  Standard_Real& theParameter)
+{
+  return ProjectPointToCurve(thePoint, BRepAdaptor_Curve(theEdge), theParameter);
+}
+
+static void SplitCurveByPoint(
+  const NCollection_Vector<TopoDS_Edge>& theEdges,
+  const Standard_Integer theEdgeIndex,
+  const Standard_Real theParameter,
+  NCollection_Vector<TopoDS_Edge>& theEdges1,
+  NCollection_Vector<TopoDS_Edge>& theEdges2)
+{
+  for (Standard_Integer aEI = 0; aEI < theEdgeIndex; ++aEI)
+  {
+    theEdges1.Append(theEdges(aEI));
+  }
+
+  const TopoDS_Edge& aEdge = theEdges(theEdgeIndex);
+  BRepAdaptor_Curve aCurve(aEdge);
+  Standard_Integer aParamI = -1;
+  const Standard_Real aEdgeEndParams[] =
+    {aCurve.FirstParameter(), aCurve.LastParameter()};
+  if (Abs(theParameter - aEdgeEndParams[0]) < Precision::PConfusion())
+  {
+    aParamI = 0;
+  }
+  else if (Abs(theParameter - aEdgeEndParams[1]) < Precision::PConfusion())
+  {
+    aParamI = 1;
+  }
+
+  const TopAbs_Orientation aOrient = aEdge.Orientation();
+  if (aOrient == TopAbs_REVERSED)
+  {
+    aParamI ^= 1;
+  }
+
+  NCollection_Vector<TopoDS_Edge>* aEdges = &theEdges2;
+  const Standard_Integer aECount = theEdges.Size();
+  if (aParamI == 0)
+  {
+    aEdges = (theEdgeIndex == 0) ? &theEdges1 : &theEdges2;
+    aEdges->Append(ReplaceVertex(aEdge, 0));
+  }
+  else if (aParamI == 1)
+  {
+    theEdges1.Append(ReplaceVertex(aEdge, 1));
+  }
+  else
+  {
+    TopoDS_Edge aFE = TopoDS::Edge(aEdge.Oriented(TopAbs_FORWARD));
+    ShapeAnalysis_TransferParametersProj aSATPP(aFE, TopoDS_Face());
+    aSATPP.SetMaxTolerance(Precision::Confusion());
+    TopoDS_Vertex aSplitV1, aSplitV2;
+    BRep_Builder().MakeVertex(
+      aSplitV1, aCurve.Value(theParameter), Precision::Confusion());
+    BRep_Builder().MakeVertex(
+      aSplitV2, aCurve.Value(theParameter), Precision::Confusion());
+    TopoDS_Edge aEParts[] = {
+      ShapeBuild_Edge().CopyReplaceVertices(aFE, TopoDS_Vertex(),
+        TopoDS::Vertex(aSplitV1.Oriented(TopAbs_REVERSED))),
+      ShapeBuild_Edge().CopyReplaceVertices(aFE, aSplitV2, TopoDS_Vertex())};
+    ShapeBuild_Edge().CopyPCurves(aEParts[0], aFE);
+    ShapeBuild_Edge().CopyPCurves(aEParts[1], aFE);
+    BRep_Builder().SameRange(aEParts[0], Standard_False);
+    BRep_Builder().SameRange(aEParts[1], Standard_False);
+    BRep_Builder().SameParameter(aEParts[0], Standard_False);
+    BRep_Builder().SameParameter(aEParts[1], Standard_False);
+    aSATPP.TransferRange(aEParts[0],
+      aEdgeEndParams[0], theParameter, Standard_False);
+    aSATPP.TransferRange(aEParts[1],
+      theParameter, aEdgeEndParams[1], Standard_False);
+    aEParts[0].Orientation(aOrient);
+    aEParts[1].Orientation(aOrient);
+
+    const Standard_Integer aFirstPI = (aOrient != TopAbs_REVERSED) ? 0 : 1;
+    theEdges1.Append(aEParts[aFirstPI]);
+    theEdges2.Append(aEParts[1 - aFirstPI]);
+  }
+  for (Standard_Integer aEI = theEdgeIndex + 1; aEI < aECount; ++aEI)
+  {
+    aEdges->Append(theEdges(aEI));
+  }
+}
+
+static void SplitCurveByPoints(
+  const NCollection_Vector<TopoDS_Edge>& theCurve,
+  const NCollection_Vector<NCollection_Sequence<Standard_Real> >& theParameters,
+  NCollection_Vector<NCollection_Vector<TopoDS_Edge> >& theSplittedCurves)
+{
+  NCollection_Vector<TopoDS_Edge> aCurves[3];
+  aCurves[0] = theCurve;
+  Standard_Integer aCI = 0, aEI = 0;
+  NCollection_Vector<TopoDS_Edge>::Iterator aEIt(theCurve);
+  for (NCollection_Vector<NCollection_Sequence<Standard_Real> >::Iterator
+    aPLIt(theParameters); aPLIt.More(); ++aEI, aEIt.Next(), aPLIt.Next())
+  {
+    const Standard_Boolean isForward =
+      (aEIt.Value().Orientation() != TopAbs_REVERSED);
+    for (NCollection_Sequence<Standard_Real>::Iterator
+      aPIt(aPLIt.Value(), isForward); aPIt.More(); aPIt.Next())
+    {
+      const Standard_Integer aCI1 = (aCI + 1) % 3, aCI2 = (aCI + 2) % 3;
+      SplitCurveByPoint(aCurves[aCI], aEI,
+        aPIt.Value(), aCurves[aCI1], aCurves[aCI2]);
+      if (!aCurves[aCI2].IsEmpty())
+      {
+        theSplittedCurves.Append(aCurves[aCI1]);
+        aCurves[aCI].Clear();
+        aCI = aCI2;
+        aEI = 0;
+      }
+      aCurves[aCI1].Clear();
+    }
+  }
+  theSplittedCurves.Append(aCurves[aCI]);
+}
+
+static Standard_Integer AppendIntersectionPoint(
+  const Adaptor3d_Curve& theCurve,
+  const Standard_Real theParameter,
+  NCollection_Sequence<Standard_Real>& theParameters)
+{
+  // Check the coincidence.
+  NCollection_Sequence<Standard_Real> aEndParams;
+  aEndParams.Append(theCurve.FirstParameter());
+  aEndParams.Append(theCurve.LastParameter());
+  NCollection_Sequence<Standard_Real>* aParams[] =
+    {&theParameters, &aEndParams};
+  const gp_Pnt aPoint = theCurve.Value(theParameter);
+  for (Standard_Integer aLI = 0; aLI < 2; ++aLI)
+  {
+    NCollection_Sequence<Standard_Real>::Iterator aPIt(*aParams[aLI]);
+    for (Standard_Integer aPI = 0; aPIt.More(); aPIt.Next(), ++aPI)
+    {
+      const Standard_Real aParam = aPIt.Value();
+      if (Abs(theParameter - aParam) < Precision::PConfusion() ||
+        aPoint.SquareDistance(theCurve.Value(aParam)) <=
+          Precision::SquareConfusion())
+      {
+        Standard_Integer aIntCount = 0;
+        if (aLI != 0)
+        {
+          if (aPI == 0)
+          {
+            theParameters.Prepend(aEndParams.First());
+          }
+          else
+          {
+            theParameters.Append(aEndParams.Last());
+          }
+          ++aIntCount;
+        }
+        return aIntCount;
+      }
+    }
+  }
+
+  // Calculate the position to insert.
+  NCollection_Sequence<Standard_Real>::Iterator aPIt(theParameters);
+  if (aPIt.More() && aPIt.Value() < theParameter)
+  {
+    NCollection_Sequence<Standard_Real>::Iterator aPIt2 = aPIt;
+    aPIt2.Next();
+    for (; aPIt2.More() && aPIt2.Value() < theParameter;
+      aPIt.Next(), aPIt2.Next());
+    theParameters.InsertAfter(aPIt, theParameter);
+  }
+  else
+  {
+    theParameters.Prepend(theParameter);
+  }
+  return 1;
+}
+
+static Standard_Integer IntersectEdge(
+  const TopoDS_Edge& theEdge1,
+  const TopoDS_Edge& theEdge2,
+  NCollection_Sequence<Standard_Real>& theParameters)
+{
+  // Process the ends.
+  Standard_Integer aIntCount = 0;
+  BRepAdaptor_Curve aCurve1 = BRepAdaptor_Curve(theEdge1);
+  BRepAdaptor_Curve aCurve2 = BRepAdaptor_Curve(theEdge2);
+  const gp_Pnt aEndPs[] = {aCurve2.Value(aCurve2.FirstParameter()),
+    aCurve2.Value(aCurve2.LastParameter())};
+  for (Standard_Integer aPI = 0; aPI < 2; ++aPI)
+  {
+    Standard_Real aParameter;
+    if (ProjectPointToCurve(aEndPs[aPI], aCurve1, aParameter) <=
+      Precision::SquareConfusion())
+    {
+      AppendIntersectionPoint(aCurve1, aParameter, theParameters);
+    }
+  }
+
+  // Process the internal extrema.
+  Extrema_ExtCC aAlgo(aCurve1, aCurve2);
+  if (aAlgo.IsDone())
+  {
+    const Standard_Integer aECount = aAlgo.NbExt();
+    for (Standard_Integer aEN = 1; aEN <= aECount; ++aEN)
+    {
+      Extrema_POnCurv aP1, aP2;
+      aAlgo.Points(aEN, aP1, aP2);
+      if (aP1.Value().SquareDistance(aP2.Value()) <=
+        Precision::SquareConfusion())
+      {
+        AppendIntersectionPoint(aCurve1, aP1.Parameter(), theParameters);
+      }
+    }
+  }
+  return aIntCount;
+}
+
+static Standard_Integer IntersectCurve(
+  const NCollection_Vector<TopoDS_Edge>& theEdges,
+  const TopoDS_Wire& theWire,
+  NCollection_Vector<NCollection_Sequence<Standard_Real> >& theParameters)
+{
+  Standard_Integer aIntCount = 0;
+  const Standard_Integer aECount1 = theEdges.Size();
+  for (Standard_Integer aEI1 = 0; aEI1 < aECount1; ++aEI1)
+  {
+    const TopoDS_Edge& aEdge1 = theEdges(aEI1);
+    TopExp_Explorer aEIt2(theWire, TopAbs_EDGE);
+    for (; aEIt2.More(); aEIt2.Next())
+    {
+      aIntCount += IntersectEdge(aEdge1,
+        TopoDS::Edge(aEIt2.Current()), theParameters(aEI1));
+    }
+  }
+  return aIntCount;
+}
 
 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
-                                        const TCollection_AsciiString& theNamePrefix,
                                         const Handle( HYDROData_PolylineXY )& thePolyline,
-                                        const gp_Pnt2d& thePoint ) const
+                                        const gp_Pnt2d& thePoint,
+                                        double theTolerance ) const
 {
   std::vector<gp_Pnt2d> aPointsList( 1 );
   aPointsList[0] = thePoint;
-  std::vector<Handle( Geom2d_Curve )> aCurves = GetCurves( thePolyline );
+  std::vector<TopoDS_Wire> aCurves = GetWires( thePolyline );
   bool isOK = true;
   for( int i=0, n=aCurves.size(); i<n; i++ )
   {
-    std::vector<Handle( Geom2d_Curve )> aCurvesList = Split( aCurves[i], aPointsList );
-    bool isLocalOK = CreatePolylines( theDoc, theNamePrefix, aCurvesList );
+    std::vector<TopoDS_Shape> aCurvesList = Split( aCurves[i], thePoint, theTolerance );
+    bool isLocalOK = CreatePolylines( theDoc, thePolyline->GetName(), aCurvesList, true );
     isOK = isOK && isLocalOK;
   }
   return isOK;
 }
 
 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
-                                        const TCollection_AsciiString& theNamePrefix,
-                                        const Handle( HYDROData_PolylineXY )& thePolyline,
-                                        const Handle( HYDROData_PolylineXY )& theTool ) const
+              const Handle( HYDROData_PolylineXY )& thePolyline,
+              const Handle( HYDROData_PolylineXY )& theTool,
+              double theTolerance ) const
 {
-  std::vector<Handle( Geom2d_Curve )> aCurves = GetCurves( thePolyline );
-  std::vector<Handle( Geom2d_Curve )> aToolCurves = GetCurves( theTool );
-  bool isOK = true;
-  for( int i=0, n=aCurves.size(); i<n; i++ )
-    for( int j=0, m=aToolCurves.size(); j<m; j++ )
-    {
-      std::vector<gp_Pnt2d> aPointsList = Intersection( aCurves[i], aToolCurves[j] );
-      std::vector<Handle( Geom2d_Curve )> aCurvesList = Split( aCurves[i], aPointsList );
-      bool isLocalOK = CreatePolylines( theDoc, theNamePrefix, aCurvesList );
-      isOK = isOK && isLocalOK;
-    }
-  return isOK;
+  HYDROData_SequenceOfObjects aSeq;
+  aSeq.Append( theTool );
+  return split( theDoc, thePolyline, aSeq, theTolerance, -1 );
 }
 
 bool HYDROData_PolylineOperator::Split( const Handle( HYDROData_Document )& theDoc,
-                                        const TCollection_AsciiString& theNamePrefix,
-                                        const HYDROData_SequenceOfObjects& thePolylines )
+                                        const HYDROData_SequenceOfObjects& thePolylines,
+                                        double theTolerance )
 {
   int f = thePolylines.Lower(), l = thePolylines.Upper();
-  bool isOK = true;
-  std::vector<Handle( Geom2d_Curve )> anAllCurves;
   for( int i=f; i<=l; i++ )
   {
     Handle( HYDROData_PolylineXY ) aPolyline = Handle( HYDROData_PolylineXY )::DownCast( thePolylines.Value( i ) );
-    std::vector<Handle( Geom2d_Curve )> aCurves = GetCurves( aPolyline );
-    append( anAllCurves, aCurves );
+    if( !split( theDoc, aPolyline, thePolylines, theTolerance, i ) )
+      return false;
   }
+  return true;
+}
 
-  for( int i=0, n=anAllCurves.size(); i<n; i++ )
+bool HYDROData_PolylineOperator::Merge( const Handle( HYDROData_Document )& theDoc,
+                                        const QString& theName,
+                                        const HYDROData_SequenceOfObjects& thePolylines,
+                                        bool isConnectByNewSegment,
+                                        double theTolerance )
+{
+  TopoDS_Shape aMergedPolyline;
+
+  int f = thePolylines.Lower(), l = thePolylines.Upper();
+  for( int i=f; i<=l; i++ )
   {
-    std::vector<gp_Pnt2d> aCompletePointsList;
-    for( int j=0; j<n; j++ )
-    {
-      if( i==j )
-        continue;
-      std::vector<gp_Pnt2d> aPointsList = Intersection( anAllCurves[i], anAllCurves[j] );
-      append( aCompletePointsList, aPointsList );
-    }
-    std::vector<Handle( Geom2d_Curve )> aCurvesList = Split( anAllCurves[i], aCompletePointsList );
-    bool isLocalOK = CreatePolylines( theDoc, theNamePrefix, aCurvesList );
-    isOK = isOK && isLocalOK;
+    Handle( HYDROData_PolylineXY ) aPolyline = Handle( HYDROData_PolylineXY )::DownCast( thePolylines.Value( i ) );
+    std::vector<TopoDS_Wire> aCurves = GetWires( aPolyline );
+    for( int j=0, m=aCurves.size(); j<m; j++ )
+      if( !Merge( aMergedPolyline, aCurves[j], isConnectByNewSegment, theTolerance ) )
+        return false;
   }
-  return isOK;
+
+  std::vector<TopoDS_Shape> aShapes( 1 );
+  aShapes[0] = aMergedPolyline;
+  CreatePolylines( theDoc, theName, aShapes, false );
+
+  return true;
 }
 
-bool HYDROData_PolylineOperator::Merge( const Handle( HYDROData_Document )& theDoc,
-                                        const TCollection_AsciiString& theName,
-                                        const HYDROData_SequenceOfObjects& thePolylines,
-                                        bool isConnectByNewSegment )
+bool HYDROData_PolylineOperator::Merge( TopoDS_Shape& theShape, const TopoDS_Wire& theWire, 
+                                        bool isConnectByNewSegment, double theTolerance )
 {
   //TODO
+  return true;
+}
 
-  TopoDS_Shape aMergedPolyline;
+bool HYDROData_PolylineOperator::split( const Handle( HYDROData_Document )& theDoc,
+                                        const Handle( HYDROData_PolylineXY )& thePolyline,
+                                        const HYDROData_SequenceOfObjects& theTools,
+                                        double theTolerance,
+                                        int theIgnoreIndex ) const
+{
+  std::vector<TopoDS_Wire> aCurves = GetWires( thePolyline );
+  std::vector<TopoDS_Wire> aToolCurves;
+  for( int i=theTools.Lower(), n=theTools.Upper(); i<=n; i++ )
+    if( i!=theIgnoreIndex )
+    {
+      Handle( HYDROData_PolylineXY ) aToolPolyline = 
+        Handle( HYDROData_PolylineXY )::DownCast( theTools.Value( i ) );
+      append( aToolCurves, GetWires( aToolPolyline ) );
+    }
 
-  Handle( HYDROData_PolylineXY ) aPolyline = 
-    Handle( HYDROData_PolylineXY )::DownCast( theDoc->CreateObject( KIND_POLYLINEXY ) );
-  if( aPolyline.IsNull() )
-    return false;
+  const int aPSCount = aCurves.size();
+  const int aTSCount = aToolCurves.size();
+  std::vector<TopoDS_Shape> aResult;
+  for (int aPSI = 0; aPSI < aPSCount; ++aPSI)
+  {
+    NCollection_Vector<TopoDS_Edge> aCurve;
+    Standard_Boolean aIsClosed;
+    if (!WireToCurve(aCurves[aPSI], aCurve, aIsClosed))
+    {
+      continue;
+    }
 
-  aPolyline->SetShape( aMergedPolyline );
-  //TODO: set name
+    NCollection_Vector<NCollection_Sequence<Standard_Real> > aParams;
+    aParams.SetValue(aPSCount - 1, NCollection_Sequence<Standard_Real>());
+    for (int aTSI = 0; aTSI < aTSCount; ++aTSI)
+    {
+      IntersectCurve(aCurve, aToolCurves[aTSI], aParams);
+    }
+
+    NCollection_Vector<NCollection_Vector<TopoDS_Edge> > aSplittedCurves;
+    SplitCurveByPoints(aCurve, aParams, aSplittedCurves);
+
+    Standard_Boolean aIsClosed2 = aIsClosed;
+    if (aIsClosed2)
+    {
+      const NCollection_Sequence<Standard_Real>& aPs = aParams.First();
+      if (!aPs.IsEmpty())
+      {
+        const TopoDS_Edge& aEdge = aCurve.First();
+        const Standard_Boolean isForward =
+          (aEdge.Orientation() != TopAbs_REVERSED);
+        const Standard_Real aParam = isForward ? aPs.First() : aPs.Last();
+        BRepAdaptor_Curve aCurve(aEdge);
+        const Standard_Real aEndParam = isForward ?
+          aCurve.FirstParameter() : aCurve.LastParameter();
+        aIsClosed2 = (Abs(aParam - aEndParam) > Precision::PConfusion());
+      }
+
+      if (aIsClosed2)
+      {
+        const NCollection_Sequence<Standard_Real>& aPs = aParams.Last();
+        if (!aPs.IsEmpty())
+        {
+          const TopoDS_Edge& aEdge = aCurve.Last();
+          const Standard_Boolean isForward =
+            (aEdge.Orientation() != TopAbs_REVERSED);
+          const Standard_Real aParam = isForward ? aPs.Last() : aPs.First();
+          BRepAdaptor_Curve aCurve(aEdge);
+          const Standard_Real aEndParam = isForward ?
+            aCurve.LastParameter() : aCurve.FirstParameter();
+          aIsClosed2 = (Abs(aParam - aEndParam) >= Precision::PConfusion());
+        }
+      }
+    }
+
+    Standard_Integer aFSCI = 0, aLSCI = aSplittedCurves.Size() - 1;
+    if (aIsClosed2 && aFSCI < aLSCI)
+    {
+      TopoDS_Wire aWire;
+      CurveToWire(aSplittedCurves(aLSCI), aSplittedCurves(aFSCI), aWire);
+      aResult.push_back(aWire);
+      ++aFSCI;
+      --aLSCI;
+    }
+
+    for (Standard_Integer aSCI = aFSCI; aSCI <= aLSCI; ++aSCI)
+    {
+      TopoDS_Wire aWire;
+      CurveToWire(aSplittedCurves(aSCI), aWire);
+      aResult.push_back(aWire);
+    }
+  }
 
+  CreatePolylines(theDoc, thePolyline->GetName(), aResult, true);
   return true;
 }
 
-std::vector<Handle( Geom2d_Curve )> HYDROData_PolylineOperator::GetCurves( const Handle( HYDROData_PolylineXY )& thePolyline )
+std::vector<TopoDS_Wire> HYDROData_PolylineOperator::GetWires( const Handle( HYDROData_PolylineXY )& thePolyline )
 {
-  std::vector<Handle( Geom2d_Curve )> aResult;
-  //TODO
+  std::vector<TopoDS_Wire> aResult;
+
+  TopoDS_Shape aShape = thePolyline->GetShape();
+
+  if( aShape.ShapeType()==TopAbs_WIRE )
+  {
+    aResult.push_back( TopoDS::Wire( aShape ) );
+  }
+  else
+  {
+    TopExp_Explorer anExp( aShape, TopAbs_WIRE );
+    for( ; anExp.More(); anExp.Next() )
+    {
+      aResult.push_back( TopoDS::Wire( anExp.Current() ) );
+    }
+  }
   return aResult;
 }
 
-std::vector<gp_Pnt2d> HYDROData_PolylineOperator::Intersection( const Handle( Geom2d_Curve )& theCurve,
-                                                                const Handle( Geom2d_Curve )& theTool )
+std::vector<TopoDS_Shape> HYDROData_PolylineOperator::Split( const TopoDS_Wire& theWire,
+                                                             const gp_Pnt2d& thePoint,
+                                                             double theTolerance )
 {
-  std::vector<gp_Pnt2d> aResult;
+  std::vector<TopoDS_Shape> aResult;
+  NCollection_Vector<TopoDS_Edge> aEdges;
+  Standard_Boolean isClosed;
+  if (!WireToCurve(theWire, aEdges, isClosed))
+  {
+    aResult.push_back(theWire);
+    return aResult;
+  }
+
+  const gp_Pnt aP(thePoint.X(), thePoint.Y(), 0);
+  Standard_Real aMinSqDist = DBL_MAX;
+  int aSEI = -1;
+  Standard_Real aSParam;
+  for (int aECount = aEdges.Size(), aEI = 0; aEI < aECount; ++aEI)
+  {
+    Standard_Real aParam;
+    const Standard_Real aSqDist =
+      ProjectPointToEdge(aP, aEdges(aEI), aParam);
+    if (aMinSqDist > aSqDist)
+    {
+      aMinSqDist = aSqDist;
+      aSEI = aEI;
+      aSParam = aParam;
+    }
+  }
+
+  NCollection_Vector<TopoDS_Edge> aEdges1, aEdges2;
+  SplitCurveByPoint(aEdges, aSEI, aSParam, aEdges1, aEdges2);
+  TopoDS_Wire aWire;
+  if (!isClosed)
+  {
+    CurveToWire(aEdges1, aWire);
+    if (!aEdges2.IsEmpty())
+    {
+      aResult.push_back(aWire);
+      CurveToWire(aEdges2, aWire);
+    }
+  }
+  else
+  {
+    if (!aEdges2.IsEmpty())
+    {
+      CurveToWire(aEdges2, aEdges1, aWire);
+    }
+    else
+    {
+      CurveToWire(aEdges1, aWire);
+    }
+  }
+  aResult.push_back(aWire);
+  return aResult;
+}
+
+std::vector<TopoDS_Shape> HYDROData_PolylineOperator::Split( const TopoDS_Wire& theWire,
+                                                             const TopoDS_Wire& theTool,
+                                                             double theTolerance )
+{
+  std::vector<TopoDS_Shape> aResult;
+  NCollection_Vector<TopoDS_Edge> aWEdges, aTEdges;
+  Standard_Boolean aIsWClosed, aIsTClosed;
+  if (!WireToCurve(theWire, aWEdges, aIsWClosed) ||
+    !WireToCurve(theTool, aTEdges, aIsTClosed))
+  {
+    return aResult;
+  }
+
+
   //TODO
   return aResult;
 }
 
-std::vector<Handle( Geom2d_Curve )> HYDROData_PolylineOperator::Split( const Handle( Geom2d_Curve )& theCurve,
-                                                                       const std::vector<gp_Pnt2d>& thePoints )
+std::vector<TopoDS_Shape> HYDROData_PolylineOperator::Split( const std::vector<TopoDS_Wire>& theWires,
+                                                             double theTolerance )
 {
-  std::vector<Handle( Geom2d_Curve )> aResult;
+  std::vector<TopoDS_Shape> aResult;
   //TODO
   return aResult;
 }
 
 bool HYDROData_PolylineOperator::CreatePolylines( const Handle( HYDROData_Document )& theDoc,
-                                                  const TCollection_AsciiString& theNamePrefix,
-                                                  const std::vector<Handle( Geom2d_Curve )>& theCurves )
+                                                  const QString& theNamePrefix,
+                                                  const std::vector<TopoDS_Shape>& theShapes,
+                                                  bool isUseIndices )
 {
   if( theDoc.IsNull() )
     return false;
 
-  int n = theCurves.size();
+  int n = theShapes.size();
+  int anIndex = 1;
   for( int i=0; i<n; i++ )
   {
-    TopoDS_Edge anEdge = BRepBuilderAPI_MakeEdge2d( theCurves[i] ).Edge();
-    BRepBuilderAPI_MakeWire aMakeWire;
-    aMakeWire.Add( anEdge );
-
     Handle( HYDROData_PolylineXY ) aPolyline = 
       Handle( HYDROData_PolylineXY )::DownCast( theDoc->CreateObject( KIND_POLYLINEXY ) );
     if( aPolyline.IsNull() )
       return false;
 
-    aPolyline->SetShape( aMakeWire.Wire() );
-    //TODO: set name
+    aPolyline->SetShape( theShapes[i] );
+
+    if( isUseIndices )
+    {
+      QString aNewName = theNamePrefix + "_" + QString::number( anIndex );
+      if( theDoc->FindObjectByName( aNewName ).IsNull() )  // the object with such a name is not found
+        aPolyline->SetName( aNewName );
+      anIndex++;
+    }
+    else
+    {
+      aPolyline->SetName( theNamePrefix );
+    }
   }
   return true;
 }