CurveShapeProperty Class Reference

Public Member Functions
	CurveShapeProperty (TopoShape edge)
void	SetCurve (TopoShape edge)
void	SetParameter (double U)
GPnt	Value ()
GVec	D1 ()
GVec	D2 ()
GVec	D3 ()
boolean	IsTangentDefined ()
GDir	Tangent ()
GDir	Normal ()
double	Curvature ()
GPnt	CentreOfCurvature ()

Detailed Description

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CurveShapeProperty is used to get the local property of Curve.

Member Function Documentation

D1()

GVec CurveShapeProperty.D1

(

)

Returns the first U derivative.

D2()

GVec CurveShapeProperty.D2

(

)

Returns the second U derivatives

D3()

GVec CurveShapeProperty.D3

(

)

Returns the third derivatives.

IsTangentDefined()

boolean CurveShapeProperty.IsTangentDefined

(

)

returns True if the U tangent is defined. For example, the tangent is not defined if the two first U derivatives are null.

Normal()

GDir CurveShapeProperty.Normal

(

)

Returns the normal direction.

Tangent()

GDir CurveShapeProperty.Tangent

(

)

Returns the tangent direction <D> on the iso-V.