Open CASCADE Technology  7.1.0.beta
Public Member Functions

LProp3d_CLProps Class Reference

#include <LProp3d_CLProps.hxx>

Public Member Functions

 LProp3d_CLProps (const Handle< Adaptor3d_HCurve > &C, const Standard_Integer N, const Standard_Real Resolution)
 Initializes the local properties of the curve The current point and the derivatives are computed at the same time, which allows an optimization of the computation time. <N> indicates the maximum number of derivations to be done (0, 1, 2 or 3). For example, to compute only the tangent, N should be equal to 1. <Resolution> is the linear tolerance (it is used to test if a vector is null). More...
 
 LProp3d_CLProps (const Handle< Adaptor3d_HCurve > &C, const Standard_Real U, const Standard_Integer N, const Standard_Real Resolution)
 Same as previous constructor but here the parameter is set to the value <U>. All the computations done will be related to and <U>. More...
 
 LProp3d_CLProps (const Standard_Integer N, const Standard_Real Resolution)
 Same as previous constructor but here the parameter is set to the value <U> and the curve is set with SetCurve. the curve can have a empty constructor All the computations done will be related to and <U> when the functions "set" will be done. More...
 
void SetParameter (const Standard_Real U)
 Initializes the local properties of the curve for the parameter value <U>. More...
 
void SetCurve (const Handle< Adaptor3d_HCurve > &C)
 Initializes the local properties of the curve for the new curve. More...
 
const gp_PntValue () const
 Returns the Point. More...
 
const gp_VecD1 ()
 Returns the first derivative. The derivative is computed if it has not been yet. More...
 
const gp_VecD2 ()
 Returns the second derivative. The derivative is computed if it has not been yet. More...
 
const gp_VecD3 ()
 Returns the third derivative. The derivative is computed if it has not been yet. More...
 
Standard_Boolean IsTangentDefined ()
 Returns True if the tangent is defined. For example, the tangent is not defined if the three first derivatives are all null. More...
 
void Tangent (gp_Dir &D)
 output the tangent direction <D> More...
 
Standard_Real Curvature ()
 Returns the curvature. More...
 
void Normal (gp_Dir &N)
 Returns the normal direction <N>. More...
 
void CentreOfCurvature (gp_Pnt &P)
 Returns the centre of curvature. More...
 

Constructor & Destructor Documentation

LProp3d_CLProps::LProp3d_CLProps ( const Handle< Adaptor3d_HCurve > &  C,
const Standard_Integer  N,
const Standard_Real  Resolution 
)

Initializes the local properties of the curve The current point and the derivatives are computed at the same time, which allows an optimization of the computation time. <N> indicates the maximum number of derivations to be done (0, 1, 2 or 3). For example, to compute only the tangent, N should be equal to 1. <Resolution> is the linear tolerance (it is used to test if a vector is null).

LProp3d_CLProps::LProp3d_CLProps ( const Handle< Adaptor3d_HCurve > &  C,
const Standard_Real  U,
const Standard_Integer  N,
const Standard_Real  Resolution 
)

Same as previous constructor but here the parameter is set to the value <U>. All the computations done will be related to and <U>.

LProp3d_CLProps::LProp3d_CLProps ( const Standard_Integer  N,
const Standard_Real  Resolution 
)

Same as previous constructor but here the parameter is set to the value <U> and the curve is set with SetCurve. the curve can have a empty constructor All the computations done will be related to and <U> when the functions "set" will be done.

Member Function Documentation

void LProp3d_CLProps::CentreOfCurvature ( gp_Pnt P)

Returns the centre of curvature.

.

Standard_Real LProp3d_CLProps::Curvature ( )

Returns the curvature.

const gp_Vec& LProp3d_CLProps::D1 ( )

Returns the first derivative. The derivative is computed if it has not been yet.

const gp_Vec& LProp3d_CLProps::D2 ( )

Returns the second derivative. The derivative is computed if it has not been yet.

const gp_Vec& LProp3d_CLProps::D3 ( )

Returns the third derivative. The derivative is computed if it has not been yet.

Standard_Boolean LProp3d_CLProps::IsTangentDefined ( )

Returns True if the tangent is defined. For example, the tangent is not defined if the three first derivatives are all null.

void LProp3d_CLProps::Normal ( gp_Dir N)

Returns the normal direction <N>.

void LProp3d_CLProps::SetCurve ( const Handle< Adaptor3d_HCurve > &  C)

Initializes the local properties of the curve for the new curve.

void LProp3d_CLProps::SetParameter ( const Standard_Real  U)

Initializes the local properties of the curve for the parameter value <U>.

void LProp3d_CLProps::Tangent ( gp_Dir D)

output the tangent direction <D>

const gp_Pnt& LProp3d_CLProps::Value ( ) const

Returns the Point.


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