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[modules/hydro.git] / src / HYDROData / HYDROData_ShapeFile.cxx
index b2c30411aa0ab03c46fb8765d5089b6fde6fc555..eef771c39552054b76c89b17c8e81f236e441431 100644 (file)
@@ -35,9 +35,9 @@
 #include <BRep_Tool.hxx>
 #include <BRepTools.hxx>
 #include <Precision.hxx>
-#include <Handle_Geom_Curve.hxx>
-#include <Handle_Geom_Line.hxx>
-#include <Handle_Geom_TrimmedCurve.hxx>
+#include <Geom_Curve.hxx>
+#include <Geom_Line.hxx>
+#include <Geom_TrimmedCurve.hxx>
 #include <Geom_TrimmedCurve.hxx>
 #include <BRepBuilderAPI_MakeEdge.hxx>
 #include <BRepBuilderAPI_MakeWire.hxx>
 #include <BRep_Builder.hxx>
 #include <BRepAdaptor_Curve.hxx>
 #include <GCPnts_QuasiUniformDeflection.hxx>
+#include <TopLoc_Location.hxx>
+#include <Geom_Plane.hxx>
+#include <NCollection_Array1.hxx>
+#include <BRepBndLib.hxx>
+#include <Bnd_Box.hxx>
 
 #ifdef WIN32
   #pragma warning( disable: 4996 )
@@ -73,24 +78,25 @@ HYDROData_ShapeFile::~HYDROData_ShapeFile()
   Free();
 }
 
-void HYDROData_ShapeFile::Export(const QString& aFileName, 
-  NCollection_Sequence<Handle_HYDROData_PolylineXY> aPolyXYSeq,
-  NCollection_Sequence<Handle_HYDROData_Polyline3D> aPoly3DSeq,
-  QStringList& aNonExpList)
+void HYDROData_ShapeFile::Export(Handle(HYDROData_Document) theDocument,
+                                 const QString& aFileName,
+                                 NCollection_Sequence<Handle(HYDROData_PolylineXY)> aPolyXYSeq,
+                                 NCollection_Sequence<Handle(HYDROData_Polyline3D)> aPoly3DSeq,
+                                 QStringList& aNonExpList)
 {
   SHPHandle hSHPHandle;
   if (!aPolyXYSeq.IsEmpty() && aPoly3DSeq.IsEmpty())
   {
-    hSHPHandle = SHPCreate( aFileName.toAscii().data(), SHPT_ARC );        
+    hSHPHandle = SHPCreate( aFileName.toLatin1().data(), SHPT_ARC );        
     for (int i = 1; i <= aPolyXYSeq.Size(); i++)
-      if (WriteObjectPolyXY(hSHPHandle, aPolyXYSeq(i)) != 1)
+      if (WriteObjectPolyXY(theDocument, hSHPHandle, aPolyXYSeq(i)) != 1)
         aNonExpList.append(aPolyXYSeq(i)->GetName());
   }
   else if (aPolyXYSeq.IsEmpty() && !aPoly3DSeq.IsEmpty())
   {
-    hSHPHandle = SHPCreate( aFileName.toAscii().data(), SHPT_ARCZ );
+    hSHPHandle = SHPCreate( aFileName.toLatin1().data(), SHPT_ARCZ );
     for (int i = 1; i <= aPoly3DSeq.Size(); i++)
-      if (WriteObjectPoly3D(hSHPHandle, aPoly3DSeq(i)) != 1)
+      if (WriteObjectPoly3D(theDocument, hSHPHandle, aPoly3DSeq(i)) != 1)
         aNonExpList.append(aPoly3DSeq(i)->GetName());
   }
   if (hSHPHandle->nRecords > 0)
@@ -104,22 +110,28 @@ void HYDROData_ShapeFile::Export(const QString& aFileName,
   }
 }
 
-void HYDROData_ShapeFile::Export(const QString& aFileName,
-  const Handle_HYDROData_LandCoverMap& aLCM, QStringList& aNonExpList)
+void HYDROData_ShapeFile::Export(Handle(HYDROData_Document) theDocument,
+                                 const QString& aFileName,
+                                 const Handle(HYDROData_LandCoverMap)& aLCM,
+                                 QStringList& aNonExpList,
+                                 bool bCheckLinear, bool bUseDiscr, double theDefl)
 {
-  SHPHandle hSHPHandle;
+  if (bCheckLinear && !aLCM->CheckLinear())
+    return;
+  //
+  SHPHandle hSHPHandle = NULL;
   if ( !aLCM.IsNull() && !aLCM->IsEmpty())
   {
-    hSHPHandle = SHPCreate( aFileName.toAscii().data(), SHPT_POLYGON );
+    hSHPHandle = SHPCreate( aFileName.toLatin1().data(), SHPT_POLYGON );
     HYDROData_LandCoverMap::Explorer It( aLCM );
     for( ; It.More(); It.Next())
     {
       TopoDS_Face aFace = It.Face();
-      if (WriteObjectPolygon(hSHPHandle, aFace) != 1)
+      if (WriteObjectPolygon(theDocument, hSHPHandle, aFace, bUseDiscr, theDefl) != 1)
         aNonExpList.append(aLCM->GetName() + "_" +  QString::number(It.Index()));
     }
   }
-  if (hSHPHandle->nRecords > 0)
+  if (hSHPHandle && hSHPHandle->nRecords > 0)
     SHPClose( hSHPHandle );
   else
   {
@@ -131,7 +143,9 @@ void HYDROData_ShapeFile::Export(const QString& aFileName,
 }
 
 
-int HYDROData_ShapeFile::WriteObjectPolyXY(SHPHandle theShpHandle, Handle_HYDROData_PolylineXY thePoly )
+int HYDROData_ShapeFile::WriteObjectPolyXY(Handle(HYDROData_Document) theDocument,
+                                           SHPHandle theShpHandle,
+                                           Handle(HYDROData_PolylineXY) thePoly )
 {
   SHPObject    *aSHPObj;
   std::vector<double> x, y;
@@ -147,13 +161,17 @@ int HYDROData_ShapeFile::WriteObjectPolyXY(SHPHandle theShpHandle, Handle_HYDROD
     HYDROData_PolylineXY::PointsList aPointList = thePoly->GetPoints(i);
     for (int j = 1; j <= aPointList.Size(); j++)
     {
-      x.push_back( aPointList(j).X());
-      y.push_back( aPointList(j).Y()); 
+      gp_XY P = aPointList(j);
+      theDocument->Transform(P, false);
+      x.push_back( P.X());
+      y.push_back( P.Y());
     }
     if (thePoly->IsClosedSection(i))
     {
-      x.push_back( aPointList(1).X());
-      y.push_back( aPointList(1).Y()); 
+      gp_XY P = aPointList(1);
+      theDocument->Transform(P, false);
+      x.push_back( P.X());
+      y.push_back( P.Y());
     }
   }
     
@@ -163,7 +181,9 @@ int HYDROData_ShapeFile::WriteObjectPolyXY(SHPHandle theShpHandle, Handle_HYDROD
   return 1;
 }
 
-int HYDROData_ShapeFile::WriteObjectPoly3D(SHPHandle theShpHandle, Handle_HYDROData_Polyline3D thePoly )
+int HYDROData_ShapeFile::WriteObjectPoly3D(Handle(HYDROData_Document) theDocument,
+                                           SHPHandle theShpHandle,
+                                           Handle(HYDROData_Polyline3D) thePoly )
 {
   SHPObject    *aSHPObj;
   std::vector<double> x, y, z;
@@ -179,14 +199,18 @@ int HYDROData_ShapeFile::WriteObjectPoly3D(SHPHandle theShpHandle, Handle_HYDROD
     HYDROData_PolylineXY::PointsList aPointList = thePoly->GetPolylineXY()->GetPoints(i);
     for (int j = 1; j <= aPointList.Size(); j++)
     {
-      x.push_back( aPointList(j).X());
-      y.push_back( aPointList(j).Y()); 
+      gp_XY P = aPointList(j);
+      theDocument->Transform(P, false);
+      x.push_back( P.X());
+      y.push_back( P.Y());
       z.push_back(thePoly->GetAltitudeObject()->GetAltitudeForPoint(gp_XY (aPointList(j).X(), aPointList(j).Y())));
     }
     if ( thePoly->GetPolylineXY()->IsClosedSection(i))
     {
-      x.push_back( aPointList(1).X());
-      y.push_back( aPointList(1).Y()); 
+      gp_XY P = aPointList(1);
+      theDocument->Transform(P, false);
+      x.push_back( P.X());
+      y.push_back( P.Y());
       z.push_back(thePoly->GetAltitudeObject()->GetAltitudeForPoint(gp_XY (aPointList(1).X(), aPointList(1).Y())));
 
     }
@@ -198,34 +222,17 @@ int HYDROData_ShapeFile::WriteObjectPoly3D(SHPHandle theShpHandle, Handle_HYDROD
   return 1;
 }
 
-int HYDROData_ShapeFile::WriteObjectPolygon(SHPHandle theShpHandle, const TopoDS_Shape& theInputShape )
+int HYDROData_ShapeFile::WriteObjectPolygon(Handle(HYDROData_Document) theDocument,
+                                            SHPHandle theShpHandle,
+                                            const TopoDS_Shape& theInputShape,
+                                            bool bUseDiscr, double theDefl)
 {
   if (theInputShape.IsNull())
     return 0;
-  TopExp_Explorer anEdgeEx(theInputShape, TopAbs_EDGE);
-  for (; anEdgeEx.More(); anEdgeEx.Next()) 
-  {
-    TopoDS_Edge E = TopoDS::Edge(anEdgeEx.Current());
-    double aFP, aLP;
-    Handle_Geom_Curve aCur = BRep_Tool::Curve(E, aFP, aLP);
-    Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aCur);
-    if (aLine.IsNull())
-    {
-      Handle(Geom_TrimmedCurve) aTC = Handle(Geom_TrimmedCurve)::DownCast(aCur);
-      if (!aTC.IsNull())
-      {
-        Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast(aTC->BasisCurve());
-        if (aLine.IsNull())
-          return -1;
-      }
-      else
-        return -1;
-    }
 
-  }
   if (theInputShape.ShapeType() == TopAbs_FACE)
   {
-    ProcessFace(TopoDS::Face(theInputShape), theShpHandle);
+    ProcessFace(theDocument, TopoDS::Face(theInputShape), theShpHandle, bUseDiscr, theDefl);
   }
   else if (theInputShape.ShapeType() == TopAbs_COMPOUND)
   {
@@ -235,7 +242,7 @@ int HYDROData_ShapeFile::WriteObjectPolygon(SHPHandle theShpHandle, const TopoDS
       TopoDS_Face aF = TopoDS::Face(Ex.Current());   
       if (aF.IsNull())
         continue;
-      ProcessFace(aF, theShpHandle);
+      ProcessFace(theDocument, aF, theShpHandle, bUseDiscr, theDefl);
     }
   }
   else
@@ -245,7 +252,9 @@ int HYDROData_ShapeFile::WriteObjectPolygon(SHPHandle theShpHandle, const TopoDS
  
 }
 
-void HYDROData_ShapeFile::ProcessFace(const TopoDS_Face& theFace, SHPHandle theShpHandle,
+void HYDROData_ShapeFile::ProcessFace(Handle(HYDROData_Document) theDocument,
+                                      const TopoDS_Face& theFace,
+                                      SHPHandle theShpHandle,
                                       bool bUseDiscr, double theDefl )
 {
   if (theFace.ShapeType() != TopAbs_FACE)
@@ -292,7 +301,7 @@ void HYDROData_ShapeFile::ProcessFace(const TopoDS_Face& theFace, SHPHandle theS
     for (Standard_Integer i = 1; i <= nbE; i++)
     {
       TopoDS_Edge E = aSEWD->Edge(i);
-      if (bUseDiscr)
+      if (!bUseDiscr)
       {
         TopoDS_Vertex aV = TopExp::LastVertex(E, 1);
         if (aV.IsNull())
@@ -305,11 +314,29 @@ void HYDROData_ShapeFile::ProcessFace(const TopoDS_Face& theFace, SHPHandle theS
         BRepAdaptor_Curve Cur( E );
         GCPnts_QuasiUniformDeflection Discr( Cur, theDefl );
         if( !Discr.IsDone() )
-          continue; //skip all edge?
-        for( int i = 1; i <= Discr.NbPoints(); i++ )
+          continue; //skip edge?
+        double NewDefl = theDefl/2.0;
+        while (Discr.NbPoints() < 2)
+        {
+          Discr.Initialize(Cur, NewDefl);
+          NewDefl = NewDefl/2.0;
+        }
+        //
+        if (E.Orientation() == TopAbs_FORWARD)
         {
-          gp_Pnt P = Discr.Value( i );
-          aPnts.Append(gp_Pnt2d(P.X(), P.Y()));
+          for( int i = 1; i <= Discr.NbPoints(); i++ )
+          {
+            gp_Pnt P = Discr.Value( i );
+            aPnts.Append(gp_Pnt2d(P.X(), P.Y()));
+          }
+        }
+        else
+        {
+          for( int i = Discr.NbPoints(); i > 0; i-- )
+          {
+            gp_Pnt P = Discr.Value( i );
+            aPnts.Append(gp_Pnt2d(P.X(), P.Y()));
+          }
         }
       }
     }
@@ -325,14 +352,18 @@ void HYDROData_ShapeFile::ProcessFace(const TopoDS_Face& theFace, SHPHandle theS
     //so just write all points "as-is"
     //External wire will be written in clockwise direction
     //any other wires (holes) - in anticlockwise direction
-    for (int j = 1; j <= aNPnts.Size(); j++)
+    for (int j = aNPnts.Size(); j >= 1; j--)
     { 
-      x.push_back( aNPnts(j).X());
-      y.push_back( aNPnts(j).Y()); 
+      gp_XY P = gp_XY(aNPnts(j).X(), aNPnts(j).Y());
+      theDocument->Transform(P, false);
+      x.push_back( P.X());
+      y.push_back( P.Y());
     }
     //first point is same as the last one => closed polygon
-    x.push_back( aNPnts(1).X());
-    y.push_back( aNPnts(1).Y()); 
+    gp_XY P = gp_XY(aNPnts.Last().X(), aNPnts.Last().Y());
+    theDocument->Transform(P, false);
+    x.push_back( P.X());
+    y.push_back( P.Y());
 
   }
   
@@ -348,7 +379,8 @@ bool HYDROData_ShapeFile::Parse(SHPHandle theHandle, ShapeType theType, int& the
   mySHPObjects.clear();
   SHPGetInfo( theHandle, NULL, &aShapeType, NULL, NULL );
   theShapeTypeOfFile = aShapeType;
-  bool ToRead = (theType == ShapeType_Polyline && (aShapeType == 3 || aShapeType == 13 || aShapeType == 23)) ||
+  bool ToRead = (theType == ShapeType_Polyline && 
+    (aShapeType == 3 || aShapeType == 13 || aShapeType == 23 || aShapeType == 5)) ||
    (theType == ShapeType_Polygon && aShapeType == 5);
   if (ToRead) 
   {
@@ -360,14 +392,18 @@ bool HYDROData_ShapeFile::Parse(SHPHandle theHandle, ShapeType theType, int& the
     return false;
 }
 
-void HYDROData_ShapeFile::ReadSHPPolygon(SHPObject* anObj, int i, TopoDS_Face& F)
+void HYDROData_ShapeFile::ReadSHPPolygon(Handle(HYDROData_Document) theDocument, SHPObject* anObj, int i, TopoDS_Face& F)
 {
   if (!anObj)
     return;
-  TopoDS_Wire W;
   TopoDS_Edge E; 
   int nParts = anObj->nParts;
-  gp_Pln pln(gp_Pnt(0,0,0), gp_Dir(0,0,1));
+  Handle(Geom_Plane) aPlaneSur = new Geom_Plane(gp_Pnt(0,0,0), gp_Dir(0,0,1));
+
+  BRep_Builder BB;
+  BB.MakeFace(F);
+
+  NCollection_Sequence<TopoDS_Wire> allWires;
 
   TopTools_SequenceOfShape aWires;
   for ( int i = 0 ; i < nParts ; i++ )
@@ -380,52 +416,111 @@ void HYDROData_ShapeFile::ReadSHPPolygon(SHPObject* anObj, int i, TopoDS_Face& F
     else
       EndIndex = anObj->nVertices;
 
-    NCollection_List<TopoDS_Vertex> aVertices;
-    gp_Pnt FP (anObj->padfX[StartIndex], anObj->padfY[StartIndex], 0);
-    TopoDS_Vertex V = BRepLib_MakeVertex(FP).Vertex();
-    aVertices.Append(V);
+    TopoDS_Wire W;
+    BB.MakeWire(W);
+
+    //First point is same as the last point 
+    int NbPnts = EndIndex - StartIndex - 1;
+    NCollection_Array1<TopoDS_Vertex> VPoints(0, NbPnts);
+    int j = NbPnts;
+    for ( int k = StartIndex; k < EndIndex; k++ )
+    {
+      gp_Pnt P (anObj->padfX[k], anObj->padfY[k], 0);
+      theDocument->Transform(P, true);
+      VPoints.ChangeValue(j) = BRepLib_MakeVertex(P).Vertex();
+      j--;
+    }
       
-    for ( int k = StartIndex + 1; k < EndIndex; k++ )
+    for ( int k = 0; k < VPoints.Size() - 1; k++ )
     {
-      gp_Pnt P1 (anObj->padfX[k - 1], anObj->padfY[k-1], 0); //prev point
-      gp_Pnt P2 (anObj->padfX[k], anObj->padfY[k], 0); //current point
+      gp_Pnt P1 = BRep_Tool::Pnt(VPoints(k));
+      gp_Pnt P2 = BRep_Tool::Pnt(VPoints(k + 1));
       if (P1.Distance(P2) < Precision::Confusion())
         continue;
-      TopoDS_Vertex V = BRepLib_MakeVertex(P2).Vertex();
-      Handle_Geom_TrimmedCurve aTC = GC_MakeSegment(P1,P2).Value();
-      TopoDS_Edge E = BRepLib_MakeEdge(aTC, aVertices.Last(), V).Edge();
-      aVertices.Append(V);
-      aBuilder.Add(E);
+      Handle(Geom_TrimmedCurve) aTC = GC_MakeSegment(P1, P2).Value();
+      TopoDS_Edge E;
+      if ( k != VPoints.Size() - 2)
+        E = BRepLib_MakeEdge(aTC, VPoints(k), VPoints(k + 1)).Edge();
+      else
+        //the last edge => use first and last vertices
+        E = BRepLib_MakeEdge(aTC, VPoints.First(), VPoints.Value(VPoints.Upper() - 1)).Edge();
+      //Add edge to wire
+      //If SHP file is correct then the outer wire and the holes will have the correct orientations
+      W.Closed (Standard_True);
+      W.Orientation(TopAbs_FORWARD);
+      BB.Add(W, E);
     }
-    
-    aBuilder.Build();
-    W = TopoDS::Wire(aBuilder.Shape());
-    W.Orientation(TopAbs_FORWARD);
-    BRepBuilderAPI_MakeFace aDB(pln, W);
-    TopoDS_Face aDummyFace = TopoDS::Face(aDB.Shape());
-    BRepTopAdaptor_FClass2d FClass(aDummyFace, Precision::PConfusion());
-    if ( i == 0 && FClass.PerformInfinitePoint() != TopAbs_OUT) 
+    allWires.Append(W);
+  }
+
+  int OutWIndex = -1;
+  if (allWires.Size() > 1)
+  {
+    NCollection_Sequence<Bnd_Box> BBs;
+    //try to find the largest bbox
+    for (int i = 1; i <= allWires.Size(); i++)
+    {
+      TopoDS_Wire W = allWires(i);
+      Bnd_Box BB;
+      BRepBndLib::AddClose(W, BB);
+      BBs.Append(BB);
+    }
+    for (int i = 1; i <= BBs.Size(); i++)
+    {
+      bool IsIn = false;
+      for (int j = 1; j <= BBs.Size(); j++)
+      {
+        if (i == j)
+          continue;
+        Standard_Real iXmax, iXmin, iYmax, iYmin, z0, z1;
+        Standard_Real jXmax, jXmin, jYmax, jYmin;
+        BBs(i).Get(iXmin, iYmin, z0, iXmax, iYmax, z1);
+        BBs(j).Get(jXmin, jYmin, z0, jXmax, jYmax, z1);
+        if (!(iXmin > jXmin && 
+            iYmin > jYmin &&
+            iXmax < jXmax &&
+            iYmax < jYmax))
+          IsIn = true;
+      }
+      if (IsIn)
+      {
+        OutWIndex = i;
+        break;
+      }
+    }
+  }
+  else
+    OutWIndex = 1; //one wire => no need to check
+
+  for (int i = 1; i <= allWires.Size(); i++)
+  {
+    TopoDS_Face DF;
+    BB.MakeFace(DF);
+    TopoDS_Wire W = allWires(i);
+    BB.Add(DF, W);
+    BB.UpdateFace(DF, aPlaneSur, TopLoc_Location(), Precision::Confusion());
+    //
+    BRepTopAdaptor_FClass2d FClass(DF, Precision::PConfusion());
+    if ( i == OutWIndex && FClass.PerformInfinitePoint() == TopAbs_IN) 
       W.Reverse();
-    if ( i > 0 && FClass.PerformInfinitePoint() != TopAbs_IN
+    if ( i != OutWIndex && FClass.PerformInfinitePoint() == TopAbs_OUT
       W.Reverse();
-   
-    aWires.Append(W);
+    //
+    BB.Add(F, W);
   }
   
-  BRepBuilderAPI_MakeFace aFBuilder(pln, TopoDS::Wire(aWires(1)));
-  for (int i = 2; i <= aWires.Length(); i++)
-    aFBuilder.Add(TopoDS::Wire(aWires(i)));
-  F = TopoDS::Face(aFBuilder.Shape());
-
+  //Add surface to the face
+  BB.UpdateFace(F, aPlaneSur, TopLoc_Location(), Precision::Confusion());
+  F.Closed(Standard_True);
 }
 
-int HYDROData_ShapeFile::ImportPolygons(const QString theFileName, QStringList& thePolygonsList, TopTools_SequenceOfShape& theFaces, int& theShapeTypeOfFile)
+int HYDROData_ShapeFile::ImportPolygons(Handle(HYDROData_Document) theDocument, const QString theFileName, QStringList& thePolygonsList, TopTools_SequenceOfShape& theFaces, int& theShapeTypeOfFile)
 {
   Free();
   int Stat = TryOpenShapeFile(theFileName);
   if (Stat != 0)
     return Stat;
-  myHSHP = SHPOpen( theFileName.toAscii().data(), "rb" );
+  myHSHP = SHPOpen( theFileName.toLatin1().data(), "rb" );
   if (!Parse(myHSHP, HYDROData_ShapeFile::ShapeType_Polygon, theShapeTypeOfFile))
     return 0;
   for (size_t i = 0; i < mySHPObjects.size(); i++)
@@ -440,7 +535,7 @@ int HYDROData_ShapeFile::ImportPolygons(const QString theFileName, QStringList&
 #endif
     for (size_t i = 0; i < mySHPObjects.size(); i++) 
     {
-       ReadSHPPolygon(mySHPObjects[i], i, aF);
+       ReadSHPPolygon(theDocument, mySHPObjects[i], i, aF);
        theFaces.Append(aF);
     }
 #ifdef OSD_TIMER
@@ -468,7 +563,7 @@ void HYDROData_ShapeFile::Free()
 
 
 void HYDROData_ShapeFile::ReadSHPPolyXY(Handle(HYDROData_Document) theDocument, SHPObject* anObj, QString theFileName, 
-  int theInd, NCollection_Sequence<Handle_HYDROData_Entity>& theEntities)
+  int theInd, NCollection_Sequence<Handle(HYDROData_Entity)>& theEntities, bool bReadAsPolyline)
 {
 
   Handle(HYDROData_PolylineXY) aPolylineXY = Handle(HYDROData_PolylineXY)::DownCast( theDocument->CreateObject( KIND_POLYLINEXY ) );
@@ -483,24 +578,32 @@ void HYDROData_ShapeFile::ReadSHPPolyXY(Handle(HYDROData_Document) theDocument,
     else
       EndIndex = anObj->nVertices;
 
-    bool IsClosed = false;
     HYDROData_PolylineXY::SectionType aSectType = HYDROData_PolylineXY::SECTION_POLYLINE; 
-    if (anObj->padfX[StartIndex] == anObj->padfX[EndIndex - 1] &&
-        anObj->padfY[StartIndex] == anObj->padfY[EndIndex - 1] )
+    if (!bReadAsPolyline)
     {
-      IsClosed = true;
-      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toAscii()), aSectType, true);
+      bool IsClosed = false;
+      if (anObj->padfX[StartIndex] == anObj->padfX[EndIndex - 1] &&
+        anObj->padfY[StartIndex] == anObj->padfY[EndIndex - 1] )
+      {
+        IsClosed = true;
+        aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toLatin1()), aSectType, true);
+      }
+      else
+        aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toLatin1()), aSectType, false);
+
+      if (IsClosed)
+        EndIndex--;
     }
     else
-      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toAscii()), aSectType, false);
-    
-    if (IsClosed)
+    {
+      //polygon; contours always closed
+      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toLatin1()), aSectType, true);
       EndIndex--;
+    }
     for ( int k = StartIndex; k < EndIndex ; k++ )
     {
-      HYDROData_PolylineXY::Point aSectPoint;
-      aSectPoint.SetX( anObj->padfX[k] );
-      aSectPoint.SetY( anObj->padfY[k] );
+      HYDROData_PolylineXY::Point aSectPoint = gp_XY(anObj->padfX[k], anObj->padfY[k]);
+      theDocument->Transform(aSectPoint, true);
       aPolylineXY->AddPoint( i, aSectPoint );
     }
 
@@ -515,7 +618,7 @@ void HYDROData_ShapeFile::ReadSHPPolyXY(Handle(HYDROData_Document) theDocument,
 }
 
 void HYDROData_ShapeFile::ReadSHPPoly3D(Handle(HYDROData_Document) theDocument, SHPObject* anObj, QString theFileName, 
-  int theInd, NCollection_Sequence<Handle_HYDROData_Entity>& theEntities)
+  int theInd, NCollection_Sequence<Handle(HYDROData_Entity)>& theEntities)
 {
   Handle(HYDROData_PolylineXY) aPolylineXY = Handle(HYDROData_PolylineXY)::DownCast( theDocument->CreateObject( KIND_POLYLINEXY ) );
 
@@ -542,20 +645,23 @@ void HYDROData_ShapeFile::ReadSHPPoly3D(Handle(HYDROData_Document) theDocument,
         anObj->padfZ[StartIndex] == anObj->padfZ[EndIndex - 1])
     {
       IsClosed = true;
-      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toAscii()), aSectType, true );
+      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toLatin1()), aSectType, true );
     }
     else
-      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toAscii()), aSectType, false  );
+      aPolylineXY->AddSection( TCollection_AsciiString( ("poly_section_" + QString::number(i)).data()->toLatin1()), aSectType, false  );
     
     if (IsClosed)
       EndIndex--;
     for ( int k = StartIndex ; k < EndIndex ; k++ )
     {
-      HYDROData_PolylineXY::Point aSectPoint;
-      aSectPoint.SetX( anObj->padfX[k] );
-      aSectPoint.SetY( anObj->padfY[k] );
+      HYDROData_PolylineXY::Point aSectPoint = gp_XY(anObj->padfX[k], anObj->padfY[k]);
+      theDocument->Transform(aSectPoint, true);
       aPolylineXY->AddPoint( i, aSectPoint );
-      aAPoints.Append(gp_XYZ (anObj->padfX[k], anObj->padfY[k], anObj->padfZ[k]));
+      HYDROData_Bathymetry::AltitudePoint p;
+      p.X = aSectPoint.X();
+      p.Y = aSectPoint.Y();
+      p.Z = anObj->padfZ[k];
+      aAPoints.push_back(p);
     }
   }
 
@@ -583,10 +689,24 @@ void HYDROData_ShapeFile::ReadSHPPoly3D(Handle(HYDROData_Document) theDocument,
 
 }
 
-
+void HYDROData_ShapeFile::GetFreeIndices(std::vector<int>& theAllowedIndexes, QString strName, size_t theObjsSize,
+                                         QStringList theExistingNames, QString theBaseFileName)
+{
+  int anInd = 0;
+  for (;theAllowedIndexes.size() < theObjsSize;)
+  {
+    if (!theExistingNames.contains(theBaseFileName + strName + QString::number(anInd)))
+    {
+      theAllowedIndexes.push_back(anInd);
+      anInd++;
+    }
+    else
+      anInd++;
+  }
+}
 
 int HYDROData_ShapeFile::ImportPolylines(Handle(HYDROData_Document) theDocument, const QString& theFileName, 
-  NCollection_Sequence<Handle_HYDROData_Entity>& theEntities, int& theShapeTypeOfFile)
+  NCollection_Sequence<Handle(HYDROData_Entity)>& theEntities, int& theShapeTypeOfFile, ImportShapeType theShapeTypesToImport)
 {
   //Free();
   int aStat = TryOpenShapeFile(theFileName);
@@ -601,34 +721,31 @@ int HYDROData_ShapeFile::ImportPolylines(Handle(HYDROData_Document) theDocument,
     anExistingNames.push_back(anIter.Current()->GetName());
 
   SHPHandle aHSHP;
-  aHSHP = SHPOpen( theFileName.toAscii().data(), "rb" );
+  aHSHP = SHPOpen( theFileName.toLatin1().data(), "rb" );
   
   QFileInfo aFileInfo(theFileName);
   QString aBaseFileName = aFileInfo.baseName();
 
   if (!Parse(aHSHP, HYDROData_ShapeFile::ShapeType_Polyline, theShapeTypeOfFile))
     return 0;
-  if (aHSHP->nShapeType == 3 || aHSHP->nShapeType == 23)
+
+  int sh_type = aHSHP->nShapeType;
+
+  if ((theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_All || 
+    theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_Polyline) 
+    && (sh_type == 3 || sh_type == 23))
   {
-    anInd = 0;
-    for (;anAllowedIndexes.size() < mySHPObjects.size();)
-    {
-      if (!anExistingNames.contains(aBaseFileName + "_PolyXY_" + QString::number(anInd)))
-      {
-        anAllowedIndexes.push_back(anInd);
-        anInd++;
-      }
-      else
-        anInd++;
-    }
-    
+    size_t anObjsSize = mySHPObjects.size();
+    GetFreeIndices(anAllowedIndexes, "_PolyXY_", anObjsSize, anExistingNames, aBaseFileName);
     for (size_t i = 0; i < mySHPObjects.size(); i++ )
     {
-      ReadSHPPolyXY(theDocument, mySHPObjects[i], aBaseFileName, anAllowedIndexes[i], theEntities);
+      ReadSHPPolyXY(theDocument, mySHPObjects[i], aBaseFileName, anAllowedIndexes[i], theEntities, false);
     }
     aStat = 1;
   }
-  else if (aHSHP->nShapeType == 13)
+  else if ((theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_All || 
+    theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_Polyline3D) && sh_type == 13)
   {
     anInd = 0;
     for (;anAllowedIndexes.size() < mySHPObjects.size();)
@@ -644,9 +761,24 @@ int HYDROData_ShapeFile::ImportPolylines(Handle(HYDROData_Document) theDocument,
         anInd++;
     }
     for (size_t i = 0; i < mySHPObjects.size(); i++ )
+    {
       ReadSHPPoly3D(theDocument, mySHPObjects[i], aBaseFileName, anAllowedIndexes[i], theEntities);
+    }
     aStat = 1;
   }
+  else if ((theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_All || 
+    theShapeTypesToImport == HYDROData_ShapeFile::ImportShapeType_Polygon) && sh_type == 5)
+  {
+    //import polygon's contours as polylines
+    size_t anObjsSize = mySHPObjects.size();
+    GetFreeIndices(anAllowedIndexes, "_PolyXY_", anObjsSize, anExistingNames, aBaseFileName);
+    for (size_t i = 0; i < mySHPObjects.size(); i++ )
+    {
+      ReadSHPPolyXY(theDocument, mySHPObjects[i], aBaseFileName, anAllowedIndexes[i], theEntities, true);
+    }
+    aStat = 2;
+  }
   else  
   {
     aStat = 0;
@@ -701,10 +833,15 @@ int HYDROData_ShapeFile::TryOpenShapeFile(QString theFileName)
 {
   QString aSHPfile = theFileName.simplified();
   QString aSHXfile = theFileName.simplified().replace( theFileName.simplified().size() - 4, 4, ".shx");
+
+  QString anExt = theFileName.split('.', QString::SkipEmptyParts).back();
+  if (anExt.toLower() != "shp")
+    return -3;
+
   FILE* pFileSHP = NULL;
-  pFileSHP = fopen (aSHPfile.toAscii().data(), "r");
+  pFileSHP = fopen (aSHPfile.toLatin1().data(), "r");
   FILE* pFileSHX = NULL;
-  pFileSHX = fopen (aSHXfile.toAscii().data(), "r");
+  pFileSHX = fopen (aSHXfile.toLatin1().data(), "r");
 
   if (pFileSHP == NULL || pFileSHX == NULL)
   {
@@ -725,7 +862,7 @@ bool HYDROData_ShapeFile::CheckDBFFileExisting(const QString& theSHPFilePath, QS
   QString aSHPfile = theSHPFilePath.simplified();
   QString aDBFfile = theSHPFilePath.simplified().replace( theSHPFilePath.simplified().size() - 4, 4, ".dbf");
   FILE* pFileDBF = NULL;
-  pFileDBF = fopen (aDBFfile.toAscii().data(), "r");
+  pFileDBF = fopen (aDBFfile.toLatin1().data(), "r");
 
   if (pFileDBF == NULL)
   {
@@ -740,7 +877,7 @@ bool HYDROData_ShapeFile::CheckDBFFileExisting(const QString& theSHPFilePath, QS
 
 bool HYDROData_ShapeFile::DBF_OpenDBF(const QString& thePathToDBFFile)
 {
-  myHDBF = DBFOpen( thePathToDBFFile.toAscii().data(), "r" );
+  myHDBF = DBFOpen( thePathToDBFFile.toLatin1().data(), "r" );
   if(myHDBF != NULL)
     return true;
   else
@@ -986,4 +1123,5 @@ bool HYDROData_ShapeFile::DBF_WriteFieldAndValues(const QString& theFileName, co
   DBFClose( hDBF );
   return true;
 
-}
\ No newline at end of file
+}
+