Function compareByX

compareByX(a: Geometry.Point, b: Geometry.Point): number
Compares points based on x value. Y value is ignored.

Return values:
- 0: If a.x === b.x
- 1: a is to the right of b (ie. a.x > b.x)
- -1: a is to the left of b (ie. a.x < b.x)
Parameters
- a: Geometry.Point
- b: Geometry.Point
Returns number
Example: Sorting by x
```
arrayOfPoints.sort(Points.compareByX);
```