src/HYDROData/HYDROData_ShapesTool.cxx

   1
   2 #include "HYDROData_ShapesTool.h"
   3
   4 #include <BRep_Tool.hxx>
   5
   6 #include <gp_Pnt.hxx>
   7
   8 #include <Precision.hxx>
   9
  10 #include <TopExp.hxx>
  11
  12 #include <TopoDS.hxx>
  13 #include <TopoDS_Edge.hxx>
  14 #include <TopoDS_Shape.hxx>
  15 #include <TopoDS_Vertex.hxx>
  16 #include <TopoDS_Wire.hxx>
  17
  18 #include <TopTools_SequenceOfShape.hxx>
  19
  20 #include <TopExp_Explorer.hxx>
  21
  22 void HYDROData_ShapesTool::ExploreShapeToShapes( const TopoDS_Shape&       theInShape,
  23                                                  const TopAbs_ShapeEnum&   theExpType,
  24                                                  TopTools_SequenceOfShape& theOutShapes )
  25 {
  26   theOutShapes.Clear();
  27
  28   if ( theInShape.IsNull() )
  29     return;
  30
  31   TopExp_Explorer anExp( theInShape, theExpType );
  32   for ( ; anExp.More(); anExp.Next() )
  33   {
  34     TopoDS_Shape anExpShape = anExp.Current();
  35     theOutShapes.Append( anExpShape );
  36   }
  37 }
  38
  39 bool HYDROData_ShapesTool::Vertices( const TopoDS_Shape& theInShape,
  40                                      TopoDS_Vertex&      theFirstVertex,
  41                                      TopoDS_Vertex&      theLastVertex,
  42                                      const bool          theIsCumOri  )
  43 {
  44   if ( theInShape.IsNull() )
  45     return false;
  46
  47   if ( theInShape.ShapeType() == TopAbs_EDGE )
  48   {
  49     TopoDS_Edge anEdge = TopoDS::Edge( theInShape );
  50     TopExp::Vertices( anEdge, theFirstVertex, theLastVertex, theIsCumOri );
  51   }
  52   else if ( theInShape.ShapeType() == TopAbs_WIRE )
  53   {
  54     TopoDS_Wire aWire = TopoDS::Wire( theInShape );
  55     TopExp::Vertices( aWire, theFirstVertex, theLastVertex );
  56   }
  57   else
  58   {
  59     return false;
  60   }
  61
  62   return true;
  63 }
  64
  65 bool HYDROData_ShapesTool::IsVerticesEquals( const TopoDS_Vertex& theFirstVert,
  66                                              const TopoDS_Vertex& theSecondVert,
  67                                              const bool           theIs2D )
  68 {
  69   gp_Pnt aFirstPoint = BRep_Tool::Pnt( theFirstVert );
  70   gp_Pnt aSecondPoint = BRep_Tool::Pnt( theSecondVert );
  71
  72   // Set the Z coord to zero for 2D equations
  73   if ( theIs2D )
  74   {
  75     aFirstPoint.SetZ( 0.0 );
  76     aSecondPoint.SetZ( 0.0 );
  77   }
  78
  79   return aFirstPoint.IsEqual( aSecondPoint, Precision::Confusion() );
  80 }
  81
  82 bool HYDROData_ShapesTool::IsEdgesEquals( const TopoDS_Edge& theFirstEdge,
  83                                           const TopoDS_Edge& theSecondEdge,
  84                                           const bool         theIs2D )
  85 {
  86   TopoDS_Vertex aFFirstVert, aFLastVert, aSFirstVert, aSLastVert;
  87   TopExp::Vertices( theFirstEdge, aFFirstVert, aFLastVert );
  88   TopExp::Vertices( theSecondEdge, aSFirstVert, aSLastVert );
  89   return IsVerticesEquals( aFFirstVert, aSFirstVert, theIs2D ) &&
  90          IsVerticesEquals( aFLastVert, aSLastVert, theIs2D );
  91 }
  92
  93