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// File: GeomAPI_ProjectPointOnSurf.cxx
// Created: Thu Mar 17 16:00:37 1994
// Author: Bruno DUMORTIER
#include <GeomAPI_ProjectPointOnSurf.ixx>
#include <GeomAdaptor_Surface.hxx>
#include <Precision.hxx>
//=======================================================================
//function : GeomAPI_ProjectPointOnSurf
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::GeomAPI_ProjectPointOnSurf()
: myIsDone (Standard_False) { }
//=======================================================================
//function : GeomAPI_ProjectPointOnSurf
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::GeomAPI_ProjectPointOnSurf (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface)
{
Init (P, Surface);
}
//=======================================================================
//function : GeomAPI_ProjectPointOnSurf
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::GeomAPI_ProjectPointOnSurf (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Tolerance)
{
Init (P, Surface, Tolerance);
}
//=======================================================================
//function : GeomAPI_ProjectPointOnSurf
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::GeomAPI_ProjectPointOnSurf(const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup)
{
Init (P, Surface, Umin, Usup, Vmin, Vsup);
}
//=======================================================================
//function : GeomAPI_ProjectPointOnSurf
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::GeomAPI_ProjectPointOnSurf (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup,
const Standard_Real Tolerance)
{
Init (P, Surface, Umin, Usup, Vmin, Vsup, Tolerance);
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init ()
{
myIsDone = myExtPS.IsDone() && ( myExtPS.NbExt() > 0);
if ( myIsDone) {
// evaluate the lower distance and its index;
Standard_Real Dist2, Dist2Min = myExtPS.SquareDistance(1);
myIndex = 1;
for ( Standard_Integer i = 2; i <= myExtPS.NbExt(); i++) {
Dist2 = myExtPS.SquareDistance(i);
if (Dist2 < Dist2Min) {
Dist2Min = Dist2;
myIndex = i;
}
}
}
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface)
{
Init (P, Surface, Precision::Confusion());
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init(const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Tolerance)
{
//modified by NIZNHY-PKV Thu Apr 4 10:37:55 2002 f
//GeomAdaptor_Surface TheSurface (Surface);
//myExtPS = Extrema_ExtPS (P, TheSurface, Tolerance, Tolerance);
//modified by NIZNHY-PKV Mon Apr 8 11:13:37 2002 f XXX
Standard_Real Umin, Usup, Vmin, Vsup;
Surface->Bounds(Umin, Usup, Vmin, Vsup);
myGeomAdaptor.Load(Surface, Umin, Usup, Vmin, Vsup);
//
//myExtPS = Extrema_ExtPS();
myExtPS.Initialize(myGeomAdaptor, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
myExtPS.Perform(P);
//XXXmyExtPS = Extrema_ExtPS (P, myGeomAdaptor, Tolerance, Tolerance);
//modified by NIZNHY-PKV Mon Apr 8 11:13:44 2002 t XXX
//modified by NIZNHY-PKV Thu Apr 4 10:37:58 2002 t
Init ();
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup )
{
Standard_Real Tolerance = Precision::PConfusion();
//modified by NIZNHY-PKV Thu Apr 4 10:38:23 2002 f
//GeomAdaptor_Surface TheSurface (Surface,Umin,Usup,Vmin,Vsup);
//myExtPS = Extrema_ExtPS (P, TheSurface, Tol, Tol);
myGeomAdaptor.Load(Surface, Umin,Usup,Vmin,Vsup);
//myExtPS = Extrema_ExtPS();
myExtPS.Initialize(myGeomAdaptor, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
myExtPS.Perform(P);
//XXX myExtPS = Extrema_ExtPS (P, myGeomAdaptor, Tol, Tol);
//modified by NIZNHY-PKV Thu Apr 4 10:38:30 2002 t
Init ();
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init (const gp_Pnt& P,
const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup,
const Standard_Real Tolerance)
{
//modified by NIZNHY-PKV Thu Apr 4 10:39:10 2002 f
//GeomAdaptor_Surface TheSurface (Surface,Umin,Usup,Vmin,Vsup);
//myExtPS = Extrema_ExtPS (P, TheSurface, Tolerance, Tolerance);
myGeomAdaptor.Load(Surface, Umin,Usup,Vmin,Vsup);
//myExtPS = Extrema_ExtPS();
myExtPS.Initialize(myGeomAdaptor, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
myExtPS.Perform(P);
//XXX myExtPS = Extrema_ExtPS (P, myGeomAdaptor, Tolerance, Tolerance);
//modified by NIZNHY-PKV Thu Apr 4 10:39:14 2002 t
Init ();
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init (const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup )
{
Standard_Real Tolerance = Precision::PConfusion();
//modified by NIZNHY-PKV Thu Apr 4 10:41:50 2002 f
//GeomAdaptor_Surface TheSurface (Surface,Umin,Usup,Vmin,Vsup);
myGeomAdaptor.Load(Surface, Umin,Usup,Vmin,Vsup);
//modified by NIZNHY-PKV Thu Apr 4 10:42:29 2002 t
//myExtPS = Extrema_ExtPS();
//modified by NIZNHY-PKV Thu Apr 4 10:42:32 2002 f
//myExtPS.Initialize(TheSurface, Umin, Usup, Vmin, Vsup, Tol, Tol);
myExtPS.Initialize(myGeomAdaptor, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
//modified by NIZNHY-PKV Thu Apr 4 10:42:39 2002 t
myIsDone = Standard_False;
}
//=======================================================================
//function : Init
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Init (const Handle(Geom_Surface)& Surface,
const Standard_Real Umin,
const Standard_Real Usup,
const Standard_Real Vmin,
const Standard_Real Vsup,
const Standard_Real Tolerance)
{
//modified by NIZNHY-PKV Thu Apr 4 10:43:00 2002 f
//GeomAdaptor_Surface TheSurface (Surface,Umin,Usup,Vmin,Vsup);
myGeomAdaptor.Load(Surface, Umin,Usup,Vmin,Vsup);
//modified by NIZNHY-PKV Thu Apr 4 10:43:16 2002 t
//myExtPS = Extrema_ExtPS();
//modified by NIZNHY-PKV Thu Apr 4 10:43:18 2002 f
//myExtPS.Initialize(TheSurface, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
myExtPS.Initialize(myGeomAdaptor, Umin, Usup, Vmin, Vsup, Tolerance, Tolerance);
//modified by NIZNHY-PKV Thu Apr 4 10:43:26 2002 t
myIsDone = Standard_False;
}
//=======================================================================
//function : Perform
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Perform(const gp_Pnt& P)
{
myExtPS.Perform(P);
Init ();
}
//=======================================================================
//function : IsDone
//purpose :
//=======================================================================
Standard_Boolean GeomAPI_ProjectPointOnSurf::IsDone () const
{
return myIsDone;
}
//=======================================================================
//function : NbPoints
//purpose :
//=======================================================================
Standard_Integer GeomAPI_ProjectPointOnSurf::NbPoints() const
{
if ( myIsDone){
return myExtPS.NbExt();
}
else{
return 0;
}
}
//=======================================================================
//function : Point
//purpose :
//=======================================================================
gp_Pnt GeomAPI_ProjectPointOnSurf::Point(const Standard_Integer Index) const
{
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
"GeomAPI_ProjectPointOnSurf::Point");
return (myExtPS.Point(Index)).Value();
}
//=======================================================================
//function : Parameters
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::Parameters(const Standard_Integer Index,
Standard_Real& U,
Standard_Real& V) const
{
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
"GeomAPI_ProjectPointOnSurf::Parameter");
(myExtPS.Point(Index)).Parameter(U,V);
}
//=======================================================================
//function : Distance
//purpose :
//=======================================================================
Standard_Real GeomAPI_ProjectPointOnSurf::Distance (const Standard_Integer Index) const
{
Standard_OutOfRange_Raise_if( Index < 1 || Index > NbPoints(),
"GeomAPI_ProjectPointOnSurf::Distance");
return sqrt (myExtPS.SquareDistance(Index));
}
//=======================================================================
//function : NearestPoint
//purpose :
//=======================================================================
gp_Pnt GeomAPI_ProjectPointOnSurf::NearestPoint() const
{
StdFail_NotDone_Raise_if
(!myIsDone, "GeomAPI_ProjectPointOnSurf::NearestPoint");
return (myExtPS.Point(myIndex)).Value();
}
//=======================================================================
//function : Standard_Integer
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::operator Standard_Integer() const
{
return NbPoints();
}
//=======================================================================
//function : gp_Pnt
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::operator gp_Pnt() const
{
return NearestPoint();
}
//=======================================================================
//function : LowerDistanceParameters
//purpose :
//=======================================================================
void GeomAPI_ProjectPointOnSurf::LowerDistanceParameters (Standard_Real& U,
Standard_Real& V ) const
{
StdFail_NotDone_Raise_if
(!myIsDone, "GeomAPI_ProjectPointOnSurf::LowerDistanceParameters");
(myExtPS.Point(myIndex)).Parameter(U,V);
}
//=======================================================================
//function : LowerDistance
//purpose :
//=======================================================================
Standard_Real GeomAPI_ProjectPointOnSurf::LowerDistance() const
{
StdFail_NotDone_Raise_if
(!myIsDone, "GeomAPI_ProjectPointOnSurf::LowerDistance");
return sqrt (myExtPS.SquareDistance(myIndex));
}
//=======================================================================
//function : Standard_Real
//purpose :
//=======================================================================
GeomAPI_ProjectPointOnSurf::operator Standard_Real() const
{
return LowerDistance();
}
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