fractionToRigidFrame Method
evaluate the surface at u and v fractions. Return a (squared, right handed) coordinate frame at that point on the surface.
fractionToRigidFrame(fractionU: number, fractionV: number, result?: Transform): Transform | undefined
| Parameter | Type | Description |
|---|---|---|
| fractionU | number | u parameter |
| fractionV | number | v parameter |
| result | Transform | undefined if surface derivatives are parallel (or either alone is zero) |
Defined in
Last Updated: 08 January, 2020