knotToPointAndDerivative Method
Evaluate the curve and derivative at the given parameter.
knotToPointAndDerivative(u: number, result?: Ray3d): Ray3d
@returns the ray with origin at the curve point and direction as the derivative.
| Parameter | Type | Description |
|---|---|---|
| u | number | parameter in curve domain. |
| result | Ray3d | optional result. |
Returns - Ray3d
the ray with origin at the curve point and direction as the derivative.
Defined in
- bspline/BSplineCurve.ts Line 667
Last Updated: 21 February, 2025
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