Fair a curve by removing high curvature areas while keeping the global shape as close to the original as possible.

Input parameters:

1. Cu → Curve to rebuild.
2. Tf → Fairing tolerance as a measure of absolute deviation.
3. C0 → Clamping constraint at the start of the curve.
   • 0 → Position
   • 1 → Tangency
   • 2 → Curvature
   • 3 → G3
   • 4 → G4
4. C1 → Clamping constraint at the end of the curve.
   • 0 → Position
   • 1 → Tangency
   • 2 → Curvature
   • 3 → G3
   • 4 → G4

Output parameters:

1. Cr → Rebuilt curve.
2. Dv → Maximum deviation between the original and the rebuilt curve.