Function Cursor.GetTangents
The tangent(s) of the curve at the current position.
                Public
            
        void GetTangents (
out Vector3  |     t1  |         |
out Vector3  |     t2  |         
The tangent(s) of the curve at the current position.
Not necessarily normalized.
Will output t1=tangent, t2=tangent if on a straight line segment. Will output the previous and next tangents for the adjacent line segments when on a corner.
This is similar to tangent but can output two tangents instead of one when on a corner.