Open CASCADE Technology  7.6.0
Static Public Member Functions

GeomProjLib Class Reference

Projection of a curve on a surface. More...

#include <GeomProjLib.hxx>

Static Public Member Functions

static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Standard_Real First, const Standard_Real Last, const Handle< Geom_Surface > &S, const Standard_Real UFirst, const Standard_Real ULast, const Standard_Real VFirst, const Standard_Real VLast, Standard_Real &Tolerance)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] <Tolerance> is used as input if the projection needs an approximation. In this case, the reached tolerance is set in <Tolerance> as output. WARNING : if the projection has failed, this method returns a null Handle. More...
 
static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Standard_Real First, const Standard_Real Last, const Handle< Geom_Surface > &S, Standard_Real &Tolerance)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] <Tolerance> is used as input if the projection needs an approximation. In this case, the reached tolerance is set in <Tolerance> as output. WARNING : if the projection has failed, this method returns a null Handle. More...
 
static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Standard_Real First, const Standard_Real Last, const Handle< Geom_Surface > &S)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. More...
 
static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. More...
 
static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S, const Standard_Real UDeb, const Standard_Real UFin, const Standard_Real VDeb, const Standard_Real VFin)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. can expand a little the bounds of surface More...
 
static Handle< Geom2d_Curve > Curve2d (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S, const Standard_Real UDeb, const Standard_Real UFin, const Standard_Real VDeb, const Standard_Real VFin, Standard_Real &Tolerance)
 gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. can expand a little the bounds of surface More...
 
static Handle< Geom_Curve > Project (const Handle< Geom_Curve > &C, const Handle< Geom_Surface > &S)
 Constructs the 3d-curve from the normal projection of the Curve on the surface . WARNING : if the projection has failed, returns a null Handle. More...
 
static Handle< Geom_Curve > ProjectOnPlane (const Handle< Geom_Curve > &Curve, const Handle< Geom_Plane > &Plane, const gp_Dir &Dir, const Standard_Boolean KeepParametrization)
 Constructs the 3d-curves from the projection of the curve <Curve> on the plane <Plane> along the direction <Dir>. If <KeepParametrization> is true, the parametrization of the Projected Curve <PC> will be the same as the parametrization of the initial curve . It means: proj(C(u)) = PC(u) for each u. Otherwise, the parametrization may change. More...
 

Detailed Description

Projection of a curve on a surface.

Member Function Documentation

◆ Curve2d() [1/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Handle< Geom_Surface > &  S 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle.

◆ Curve2d() [2/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Handle< Geom_Surface > &  S,
const Standard_Real  UDeb,
const Standard_Real  UFin,
const Standard_Real  VDeb,
const Standard_Real  VFin 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. can expand a little the bounds of surface

◆ Curve2d() [3/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Handle< Geom_Surface > &  S,
const Standard_Real  UDeb,
const Standard_Real  UFin,
const Standard_Real  VDeb,
const Standard_Real  VFin,
Standard_Real &  Tolerance 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ). If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle. can expand a little the bounds of surface

◆ Curve2d() [4/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Standard_Real  First,
const Standard_Real  Last,
const Handle< Geom_Surface > &  S 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] If the projection needs an approximation, Precision::PApproximation() is used. WARNING : if the projection has failed, this method returns a null Handle.

◆ Curve2d() [5/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Standard_Real  First,
const Standard_Real  Last,
const Handle< Geom_Surface > &  S,
const Standard_Real  UFirst,
const Standard_Real  ULast,
const Standard_Real  VFirst,
const Standard_Real  VLast,
Standard_Real &  Tolerance 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] <Tolerance> is used as input if the projection needs an approximation. In this case, the reached tolerance is set in <Tolerance> as output. WARNING : if the projection has failed, this method returns a null Handle.

◆ Curve2d() [6/6]

static Handle< Geom2d_Curve > GeomProjLib::Curve2d ( const Handle< Geom_Curve > &  C,
const Standard_Real  First,
const Standard_Real  Last,
const Handle< Geom_Surface > &  S,
Standard_Real &  Tolerance 
)
static

gives the 2d-curve of a 3d-curve lying on a surface ( uses GeomProjLib_ProjectedCurve ) The 3dCurve is taken between the parametrization range [First, Last] <Tolerance> is used as input if the projection needs an approximation. In this case, the reached tolerance is set in <Tolerance> as output. WARNING : if the projection has failed, this method returns a null Handle.

◆ Project()

static Handle< Geom_Curve > GeomProjLib::Project ( const Handle< Geom_Curve > &  C,
const Handle< Geom_Surface > &  S 
)
static

Constructs the 3d-curve from the normal projection of the Curve on the surface . WARNING : if the projection has failed, returns a null Handle.

◆ ProjectOnPlane()

static Handle< Geom_Curve > GeomProjLib::ProjectOnPlane ( const Handle< Geom_Curve > &  Curve,
const Handle< Geom_Plane > &  Plane,
const gp_Dir &  Dir,
const Standard_Boolean  KeepParametrization 
)
static

Constructs the 3d-curves from the projection of the curve <Curve> on the plane <Plane> along the direction <Dir>. If <KeepParametrization> is true, the parametrization of the Projected Curve <PC> will be the same as the parametrization of the initial curve . It means: proj(C(u)) = PC(u) for each u. Otherwise, the parametrization may change.

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