Function compareByY

compareByY(a: Geometry.Point, b: Geometry.Point): number
Compares points based on Y value. X value is ignored. Returns values:
- 0: If a.y === b.y
- 1: A is below B (ie. a.y > b.y)
- -1: A is above B (ie. a.y < b.y)
Parameters
- a: Geometry.Point
- b: Geometry.Point
Returns number
Example: Sorting by Y
```
arrayOfPoints.sort(Points.compareByY);
```