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

Syntax

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

Parameters

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

Return Value

See Also