Place a number of randomly spaced points on a curve.

Input parameters:

1. Cr → Curve to divide.
2. Cn → Number of segments.
3. Cd → Continuous distribution to apply.
4. Rn → Random engine used to sample distribution.

Output parameters:

1. Pt → Points at fragment transitions.
2. Tn → Tangent vectors at fragment transitions.
3. Lc → Curve loci at fragment transitions.