middle z for 3D guideline

[modules/hydro.git] / src / HYDROData / HYDROData_Polyline3D.cxx

diff --git a/src/HYDROData/HYDROData_Polyline3D.cxx b/src/HYDROData/HYDROData_Polyline3D.cxx
index dfc002f17f4bb8313d6cbb2977e0766bb9aa581a..0ae2a44f78e3e65e919c0955940336a2db242c4d 100644 (file)
--- a/src/HYDROData/HYDROData_Polyline3D.cxx
+++ b/src/HYDROData/HYDROData_Polyline3D.cxx
@@ -23,15 +23,33 @@
 #include "HYDROData_PolylineXY.h"
 #include "HYDROData_Profile.h"
 #include "HYDROData_ProfileUZ.h"
+#include "HYDROData_ShapesTool.h"
 #include "HYDROData_Tool.h"
 
+#include <BRep_Tool.hxx>
+
+#include <Bnd_Box.hxx>
+#include <BRepBndLib.hxx>
+
+#include <Geom_BSplineCurve.hxx>
+
 #include <gp_Pnt2d.hxx>
 #include <gp_XY.hxx>
 #include <gp_XYZ.hxx>
 
+#include <TColStd_Array1OfReal.hxx>
+
 #include <TopoDS.hxx>
+#include <TopoDS_Edge.hxx>
+#include <TopoDS_Vertex.hxx>
 #include <TopoDS_Wire.hxx>
 
+#include <TopExp.hxx>
+
+#include <TopExp_Explorer.hxx>
+
+#include <TopTools_SequenceOfShape.hxx>
+
 #include <QColor>
 #include <QStringList>
 
@@ -192,6 +210,12 @@ void HYDROData_Polyline3D::Update()
   TopoDS_Wire aResWire = HYDROData_PolylineXY::BuildWire( aSectionType, anIsSectionClosed, aResPoints );
   SetTopShape( aResWire );
   SetShape3D( aResWire );
+
+  double Xmin=0, Xmax=0, Ymin=0, Ymax=0, Zmin=-9999, Zmax=-9999;
+  Bnd_Box B;
+  BRepBndLib::Add(aResWire, B);
+  B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
+  SetMiddleZ((Zmin+Zmax)/2.);
 } 
 
 QColor HYDROData_Polyline3D::DefaultFillingColor()
@@ -421,4 +445,76 @@ void HYDROData_Polyline3D::removeChildProfileUZ()
   */
 }
 
+HYDROData_Polyline3D::Polyline3DPoints HYDROData_Polyline3D::GetPoints() const
+{
+  Polyline3DPoints aPoints;
+
+  Handle(HYDROData_PolylineXY) aPolylineXY = GetPolylineXY();
+  TopoDS_Wire aWire = TopoDS::Wire( GetShape3D() );
+  if ( aPolylineXY.IsNull() || aWire.IsNull() ) {
+    return aPoints; 
+  }
+
+  // Explode polyline on edges
+  TopTools_SequenceOfShape anEdges;
+  HYDROData_ShapesTool::ExploreShapeToShapes( aWire, TopAbs_EDGE, anEdges );
+
+  // Get points
+  if ( !anEdges.IsEmpty() ) {
+    HYDROData_IPolyline::SectionType aSectionType = aPolylineXY->GetSectionType( 0 );
+    
+    if ( aSectionType == HYDROData_IPolyline::SECTION_POLYLINE ) {
+      // Get points from wire
+      /* Seems that intermediate vertices are duplicated
+      TopExp_Explorer anExp( aWire, TopAbs_VERTEX );
+      for ( ; anExp.More(); anExp.Next() ) {
+        TopoDS_Vertex aVertex = TopoDS::Vertex( anExp.Current() );
+        if ( !aVertex.IsNull() ) {
+          gp_Pnt aPnt = BRep_Tool::Pnt( aVertex );
+          aPoints.Append( aPnt.XYZ() );
+        }
+      }
+      */
+      TopExp_Explorer anExp( aWire, TopAbs_EDGE );
+      bool isFirst = true;
+      for ( ; anExp.More(); anExp.Next() ) {
+        TopoDS_Edge anEdge = TopoDS::Edge( anExp.Current() );
+        if ( !anEdge.IsNull() ) {
+          TopoDS_Vertex aV1, aV2;
+          TopExp::Vertices( anEdge, aV1, aV2 );
+          if ( isFirst ) {
+            gp_Pnt aPnt1 = BRep_Tool::Pnt( aV1 );
+            aPoints.Append( aPnt1.XYZ() );
+          }
+
+          gp_Pnt aPnt2 = BRep_Tool::Pnt( aV2 );
+          aPoints.Append( aPnt2.XYZ() );
+
+          isFirst = false;
+        }
+      }
+    } else {
+      // Get points from spline curve
+      Standard_Real aStart, anEnd;
+      Handle(Geom_Curve) aCurve = BRep_Tool::Curve( TopoDS::Edge( anEdges.First() ), aStart, anEnd );
+      Handle(Geom_BSplineCurve) aGeomSpline = Handle(Geom_BSplineCurve)::DownCast( aCurve );
+
+      if ( !aGeomSpline.IsNull() ) {
+        int aNbKnots = aGeomSpline->NbKnots();
+
+        TColStd_Array1OfReal aSplineKnots( 1, aNbKnots );
+        aGeomSpline->Knots( aSplineKnots );
+
+        for ( int i = 1; i <= aNbKnots; ++i ) {
+          const Standard_Real& aKnot = aSplineKnots.Value( i );
+          gp_Pnt aPnt;
+          aGeomSpline->D0( aKnot, aPnt );
+          aPoints.Append( aPnt.XYZ() );
+        }
+      }
+    }
+  }
+
+  return aPoints; 
+}