Integration of OCCT 6.5.0 from SVN

src/Geom2dAPI/Geom2dAPI_ProjectPointOnCurve.cxx

@@ -0,0 +1,243 @@
+// File:	Geom2dAPI_ProjectPointOnCurve.cxx
+// Created:	Wed Mar 23 15:16:37 1994
+// Author:	Bruno DUMORTIER
+//		<dub@fuegox>
+
+#include <Geom2dAPI_ProjectPointOnCurve.ixx>
+
+#include <Geom2dAdaptor_Curve.hxx>
+
+
+//=======================================================================
+//function : Geom2dAPI_ProjectPointOnCurve
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve()
+{
+  myIsDone = Standard_False;
+}
+
+
+//=======================================================================
+//function : Geom2dAPI_ProjectPointOnCurve
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve
+  (const gp_Pnt2d&             P, 
+   const Handle(Geom2d_Curve)& Curve)
+{
+  Init(P,Curve);
+}
+
+
+//=======================================================================
+//function : Geom2dAPI_ProjectPointOnCurve
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::Geom2dAPI_ProjectPointOnCurve
+  (const gp_Pnt2d&             P, 
+   const Handle(Geom2d_Curve)& Curve,
+   const Standard_Real         Umin,
+   const Standard_Real         Usup)
+{
+  Init(P,Curve,Umin,Usup);
+}
+
+
+//=======================================================================
+//function : Init
+//purpose  : 
+//=======================================================================
+
+void Geom2dAPI_ProjectPointOnCurve::Init
+  (const gp_Pnt2d&             P,
+   const Handle(Geom2d_Curve)& Curve)
+{
+  Init(P,Curve,Curve->FirstParameter(),Curve->LastParameter());
+}
+
+
+//=======================================================================
+//function : Init
+//purpose  : 
+//=======================================================================
+
+void Geom2dAPI_ProjectPointOnCurve::Init
+  (const gp_Pnt2d&             P,
+   const Handle(Geom2d_Curve)& Curve,
+   const Standard_Real         Umin,
+   const Standard_Real         Usup )
+{
+  myC.Load(Curve,Umin,Usup);
+
+  Extrema_ExtPC2d theExtPC2d(P, myC);
+
+  myExtPC = theExtPC2d;
+  
+  myIsDone = myExtPC.IsDone() && ( myExtPC.NbExt() > 0);
+
+
+  // evaluate the lower distance and its index;
+
+  if ( myIsDone) {
+    Standard_Real Dist2, Dist2Min = myExtPC.SquareDistance(1);
+    myIndex = 1;
+    
+    for ( Standard_Integer i = 2; i <= myExtPC.NbExt(); i++) {
+      Dist2 = myExtPC.SquareDistance(i);
+      if ( Dist2 < Dist2Min) {
+	Dist2Min = Dist2;
+	myIndex = i;
+      }
+    }
+  }
+}
+
+
+//=======================================================================
+//function : NbPoints
+//purpose  : 
+//=======================================================================
+
+Standard_Integer Geom2dAPI_ProjectPointOnCurve::NbPoints() const 
+{
+  if ( myIsDone)
+    return myExtPC.NbExt();
+  else
+    return 0;
+}
+
+
+//=======================================================================
+//function : Point
+//purpose  : 
+//=======================================================================
+
+gp_Pnt2d Geom2dAPI_ProjectPointOnCurve::Point
+  (const Standard_Integer Index) const 
+{
+  Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
+			       "Geom2dAPI_ProjectPointOnCurve::Point");
+  return (myExtPC.Point(Index)).Value();
+}
+
+
+//=======================================================================
+//function : Parameter
+//purpose  : 
+//=======================================================================
+
+Standard_Real Geom2dAPI_ProjectPointOnCurve::Parameter
+  (const Standard_Integer Index) const
+{
+  Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
+			       "Geom2dAPI_ProjectPointOnCurve::Parameter");
+  return (myExtPC.Point(Index)).Parameter();
+}
+
+
+//=======================================================================
+//function : Parameter
+//purpose  : 
+//=======================================================================
+
+void Geom2dAPI_ProjectPointOnCurve::Parameter
+  (const Standard_Integer Index,
+         Standard_Real&   U     ) const
+{
+  Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
+			       "Geom2dAPI_ProjectPointOnCurve::Parameter");
+  U = (myExtPC.Point(Index)).Parameter();
+}
+
+
+//=======================================================================
+//function : Distance
+//purpose  : 
+//=======================================================================
+
+Standard_Real Geom2dAPI_ProjectPointOnCurve::Distance
+  (const Standard_Integer Index) const
+{
+  Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
+			       "Geom2dAPI_ProjectPointOnCurve::Distance");
+  return sqrt(myExtPC.SquareDistance(Index));
+}
+
+
+//=======================================================================
+//function : NearestPoint
+//purpose  : 
+//=======================================================================
+
+gp_Pnt2d Geom2dAPI_ProjectPointOnCurve::NearestPoint() const 
+{
+  StdFail_NotDone_Raise_if
+    (!myIsDone, "Geom2dAPI_ProjectPointOnCurve:NearestPoint");
+
+  return (myExtPC.Point(myIndex)).Value();
+}
+
+
+//=======================================================================
+//function : Standard_Integer
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::operator Standard_Integer() const
+{
+  return NbPoints();
+}
+
+
+//=======================================================================
+//function : gp_Pnt2d
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::operator gp_Pnt2d() const
+{
+  return NearestPoint();
+}
+
+
+//=======================================================================
+//function : LowerDistanceParameter
+//purpose  : 
+//=======================================================================
+
+Standard_Real Geom2dAPI_ProjectPointOnCurve::LowerDistanceParameter() const
+{
+  StdFail_NotDone_Raise_if
+    (!myIsDone, "Geom2dAPI_ProjectPointOnCurve:LowerDistanceParameter");
+
+  return (myExtPC.Point(myIndex)).Parameter();
+}
+
+
+//=======================================================================
+//function : LowerDistance
+//purpose  : 
+//=======================================================================
+
+Standard_Real Geom2dAPI_ProjectPointOnCurve::LowerDistance() const
+{
+  StdFail_NotDone_Raise_if
+    (!myIsDone,"Geom2dAPI_ProjectPointOnCurve:LowerDistance");
+
+  return sqrt (myExtPC.SquareDistance(myIndex));
+}
+
+
+//=======================================================================
+//function : operator
+//purpose  : 
+//=======================================================================
+
+Geom2dAPI_ProjectPointOnCurve::operator Standard_Real() const
+{
+  return LowerDistance();
+}