Calculates the tangency directions at the given parameter values on the curve.
Name | Type | Description |
Params | Double | Input/output array of Doubles that specifies the parameters. |
UTangents | Double | Output Double array that returns the tangent vectors in the U parameter direction at the specified parameter points. |
VTangents | Double | Output Double array that returns the tangent vectors in the V parameter direction at the specified parameter points. |