fractionToPointAndUnitTangent Method
Returns a ray whose origin is the curve point and direction is the unit tangent.
fractionToPointAndUnitTangent(fraction: number, result?: Ray3d): Ray3d
Parameter | Type | Description |
---|---|---|
fraction | number | fractional position on the curve |
result | Ray3d | optional preallocated ray. |
Defined in
Last Updated: 08 January, 2020