CADability dotNET
Tries to get the point and the first and second derivative of the curve at the specified position. (0..1) Some curves do not implement the second derivative and hence will return false.

Namespace: CADability.Curve2D
Assembly: CADability (in CADability.dll) Version: 1.1.4254.24737 (1.1.*)

Syntax

C#
bool TryPointDeriv2At(
	double position,
	out GeoPoint2D point,
	out GeoVector2D deriv1,
	out GeoVector2D deriv2
)
Visual Basic
Function TryPointDeriv2At ( _
	position As Double, _
	<OutAttribute> ByRef point As GeoPoint2D, _
	<OutAttribute> ByRef deriv1 As GeoVector2D, _
	<OutAttribute> ByRef deriv2 As GeoVector2D _
) As Boolean
Visual C++
bool TryPointDeriv2At(
	double position, 
	[OutAttribute] GeoPoint2D% point, 
	[OutAttribute] GeoVector2D% deriv1, 
	[OutAttribute] GeoVector2D% deriv2
)

Parameters

position
Type: System..::..Double
Position where to calculate point and derivatives
point
Type: CADability..::..GeoPoint2D%
The point at the required position
deriv1
Type: CADability..::..GeoVector2D%
deriv2
Type: CADability..::..GeoVector2D%
The second derivative at the provided parameter

Return Value

See Also