Open CASCADE Technology  6.5.4
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Public Member Functions
GeomAPI_ProjectPointOnSurf Class Reference

This class implements methods for computing all the orthogonal
projections of a point onto a surface.

#include <GeomAPI_ProjectPointOnSurf.hxx>

Public Member Functions

DEFINE_STANDARD_ALLOC GeomAPI_ProjectPointOnSurf ()
 Creates an empty object. Use the
Init function for further initialization.

 GeomAPI_ProjectPointOnSurf (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 Create the projection of a point.
 GeomAPI_ProjectPointOnSurf (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Standard_Real Tolerance, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 Create the projection of a point.
 GeomAPI_ProjectPointOnSurf (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Standard_Real Tolerance, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 GeomAPI_ProjectPointOnSurf (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 Init the projection of a point.
void Init (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Standard_Real Tolerance, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
void Init (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 Init the projection of a point.
void Init (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Standard_Real Tolerance, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
void Init (const gp_Pnt &P, const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
 Init the projection for many points on a surface
<Surface>. The solutions will be computed in the domain
[Umin,Usup] [Vmin,Vsup] of the surface.

void Init (const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Standard_Real Tolerance, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
void Init (const Handle< Geom_Surface > &Surface, const Quantity_Parameter Umin, const Quantity_Parameter Usup, const Quantity_Parameter Vmin, const Quantity_Parameter Vsup, const Extrema_ExtAlgo Algo=Extrema_ExtAlgo_Grad)
void Perform (const gp_Pnt &P)
 Performs the projection of a point on the current surface.

Standard_Boolean IsDone () const
Standard_Integer NbPoints () const
 Returns the number of computed orthogonal projection points.
Note: if projection fails, NbPoints returns 0.

 operator Standard_Integer () const
gp_Pnt Point (const Standard_Integer Index) const
 Returns the orthogonal projection
on the surface. Index is a number of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

void Parameters (const Standard_Integer Index, Quantity_Parameter &U, Quantity_Parameter &V) const
 Returns the parameters (U,V) on the
surface of the orthogonal projection. Index is a number of a
computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

Quantity_Length Distance (const Standard_Integer Index) const
 Computes the distance between the
point and its orthogonal projection on the surface. Index is a number
of a computed point.
Exceptions
Standard_OutOfRange if Index is not in the range [ 1,NbPoints ], where
NbPoints is the number of solution points.

gp_Pnt NearestPoint () const
 Returns the nearest orthogonal projection of the point
on the surface.
Exceptions
StdFail_NotDone if projection fails.

 operator gp_Pnt () const
void LowerDistanceParameters (Quantity_Parameter &U, Quantity_Parameter &V) const
 Returns the parameters (U,V) on the
surface of the nearest computed orthogonal projection of the point.
Exceptions
StdFail_NotDone if projection fails.

Quantity_Length LowerDistance () const
 Computes the distance between the
point and its nearest orthogonal projection on the surface.
Exceptions
StdFail_NotDone if projection fails.

 operator Standard_Real () const
const Extrema_ExtPSExtrema () const
 return the algorithmic object from Extrema


Constructor & Destructor Documentation

on a surface
<Surface>

on a surface
<Surface>
//! Create the projection of a point

on a surface
<Surface>. The solution are computed in the domain
[Umin,Usup] [Vmin,Vsup] of the surface.

on a surface
<Surface>


Member Function Documentation

on a surface
<Surface>. The solution are computed in the domain
[Umin,Usup] [Vmin,Vsup] of the surface.

GeomAPI_ProjectPointOnSurf::operator gp_Pnt ( ) const
GeomAPI_ProjectPointOnSurf::operator Standard_Integer ( ) const
GeomAPI_ProjectPointOnSurf::operator Standard_Real ( ) const

The documentation for this class was generated from the following file: