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GdiExtensionMethodsGetFractionalIndexFromDistanceFromStartOfPolylineCurve Method

Gets the fractional index into points of a polyline by searching a point along the polyline that has a specified distance to the start point of the polyline.

Namespace: Altaxo.Graph.Gdi
Assembly: AltaxoBase (in AltaxoBase.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
Copy
public static double GetFractionalIndexFromDistanceFromStartOfPolylineCurve(
	PointF[] points,
	double distanceFromStart
)

Parameters

points  PointF
The points of the polyline curve.
distanceFromStart  Double
The distance to the start point of the polyline curve, i.e. to the point at index 0.

Return Value

Double
The fractional index of the global polyline curve where the point at this fractional index has a distance of distanceFromStart to the start point at index 0. The return value is in the range [0..points.Length-1]. If no such point is found, then double.NaN is returned.
See Also