Integration of OCCT 6.5.0 from SVN

[occt.git] / src / Geom2dHatch / Geom2dHatch_Intersector.cxx

diff --git a/src/Geom2dHatch/Geom2dHatch_Intersector.cxx b/src/Geom2dHatch/Geom2dHatch_Intersector.cxx
new file mode 100755 (executable)
index 0000000..8e6168a
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+++ b/src/Geom2dHatch/Geom2dHatch_Intersector.cxx
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+// File:       Geom2dHatch_Intersector.cxx
+// Created:    Wed Mar 23 11:29:17 1994
+// Author:     Jean Marc LACHAUME
+//             <jml@phylox>
+
+
+#include <Geom2dHatch_Intersector.ixx>
+#include <ElCLib.hxx>
+#include <Geom2d_Line.hxx>
+#include <Precision.hxx>
+#include <Geom2dLProp_CLProps2d.hxx>
+
+
+//=======================================================================
+//function : Geom2dHatch_Intersector
+//purpose  : 
+//=======================================================================
+
+Geom2dHatch_Intersector::Geom2dHatch_Intersector() :
+myConfusionTolerance(0.0),
+myTangencyTolerance(0.0)
+{
+}
+
+//=======================================================================
+//function : Perform
+//purpose  : 
+//=======================================================================
+
+void  Geom2dHatch_Intersector::Perform(const gp_Lin2d& L, 
+                                      const Standard_Real P, 
+                                      const Standard_Real Tol, 
+                                      const Geom2dAdaptor_Curve& C)
+{
+  
+//Standard_Real pfbid,plbid;
+  IntRes2d_Domain DL;
+  if(P!=RealLast()) 
+    DL.SetValues(L.Location(),0.,Tol,ElCLib::Value(P,L),P,Tol);
+  else 
+    DL.SetValues(L.Location(),0.,Tol,Standard_True);
+  
+  IntRes2d_Domain DE(C.Value(C.FirstParameter()),
+                    C.FirstParameter(),Precision::PIntersection(),
+                    C.Value(C.LastParameter()),
+                    C.LastParameter(),Precision::PIntersection());
+  
+  Handle(Geom2d_Line) GL= new Geom2d_Line(L);
+  Geom2dAdaptor_Curve CGA(GL);
+  void *ptrpoureviterlesproblemesdeconst = (void *)(&C);
+
+  Geom2dInt_GInter Inter(CGA,
+                        DL,
+                        *((Geom2dAdaptor_Curve *)ptrpoureviterlesproblemesdeconst),
+                        DE,
+                        Precision::PConfusion(),
+                        Precision::PIntersection());
+  this->SetValues(Inter);
+}
+
+//=======================================================================
+//function : LocalGeometry
+//purpose  : 
+//=======================================================================
+
+void  Geom2dHatch_Intersector::LocalGeometry(const Geom2dAdaptor_Curve& E, 
+                                            const Standard_Real U, 
+                                            gp_Dir2d& Tang, 
+                                            gp_Dir2d& Norm, 
+                                            Standard_Real& C) const 
+{
+  //Standard_Real f,l;
+  Geom2dLProp_CLProps2d Prop(E.Curve(),U,2,Precision::PConfusion());
+
+  if(!Prop.IsTangentDefined()) return;
+
+  Prop.Tangent(Tang);
+  C = Prop.Curvature();
+  if (C > Precision::PConfusion() && C<RealLast())
+    Prop.Normal(Norm);
+  else
+    Norm.SetCoord(Tang.Y(),-Tang.X());
+}
+
+
+
+
+
+