In what unit is the coordinate point CGPoint in the coordinate system measured?

CGPoint is a structure that represents a point in a 2D coordinate system in iOS. The coordinates of a CGPoint are measured in points, not pixels.

A point is a logical measurement unit that abstracts the screen resolution. For example, on a Retina display, one point may correspond to multiple pixels to ensure sharp rendering.

Example of creating a CGPoint:

let point = CGPoint(x: 50, y: 100)

Here, x and y are coordinates in points relative to the origin of the coordinate system (usually the top-left corner of the screen).