fractionToPointAndDerivative Method
Evaluate a point a fractional position and derivative with respect to fraction along this linestring.
- See
LineString3dclass comments for description of how fraction relates to the linestring points. - At interior corners and the end point, the left derivative is returned; at the start point, the right derivative is returned.
fractionToPointAndDerivative(fraction: number, result?: Ray3d): Ray3d
| Parameter | Type | Description |
|---|---|---|
| fraction | number | fractional position |
| result | Ray3d | optional result |
Returns - Ray3d
Defined in
- curve/LineString3d.ts Line 539
Last Updated: 25 April, 2024
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