Parameters
- P
- The 3D point to project
- coincTol
- Relevant only when P lays on the curve. When the distance between P and its projection is smaller then this value, the projection is considered succesful.
- allowOutside
- When true, the projection is not constrained inside the curve domain
- u
- The U parametric position of the closest point on curve to P
Return Value
True when the projection is perpendicular to the curve, false otherwise.