Parameters
- P
- The 3D point to project
- coincTol
- Relevant only when P lays on the surface. 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 surface domain
- prevU
- The U parametric coordinate of a previous successful point projection
- prevV
- The V parametric coordinate of a previous successful point projection
- u
- The U parametric coordinate of the projection on surface to P
- v
- The V parametric coordinate of the projection on surface to P
- W
- The 2D tangent vector in parametric space
Return Value
True when the projection is perpendicular to the surface, false otherwise.