Compares points based on Z value. XY values are ignored.
Return values: 0: If a.z === b.z 1: A is below B (ie. a.z > b.z) -1: A is above B (ie. a.z < b.z)
arrayOfPoints.sort(Points.compareByZ); Copy
arrayOfPoints.sort(Points.compareByZ);
Compares points based on Z value. XY values are ignored.
Return values: 0: If a.z === b.z 1: A is below B (ie. a.z > b.z) -1: A is above B (ie. a.z < b.z)