evaluatePointAndDerivativeInSpan Method
Evaluate the curve and derivative at a fractional position within a given span.
- The derivative is with respect to the span fractional parameter, not to the curve's parameter or fractional parameter.
evaluatePointAndDerivativeInSpan(spanIndex: number, spanFraction: number): Ray3d
| Parameter | Type | Description |
|---|---|---|
| spanIndex | number | |
| spanFraction | number |
Returns - Ray3d
Defined in
- bspline/BSplineCurve.ts Line 644
Last Updated: 04 April, 2025
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