How to combine CGRects with each other in Swift
let rect1 = CGRect(x: 0, y: 0, width: 100, height: 100)let rect2 = CGRect(x: 40, y: 40, width: 150, height: 150)let union = rect1.union(rect2) // {x 0 y 0 w 190 h 190}See for more:
Swift 3 and newer:
let rect1 = CGRect(x: 0, y: 0, width: 100, height: 100)let rect2 = CGRect(x: 40, y: 40, width: 150, height: 150)let union = rect1.union(rect2) // {x 0 y 0 w 190 h 190}Result is standardized, so resulting width and height are always positive:
let rect3 = CGRect(x: 0, y: 0, width: -100, height: -100)let clone = rect3.union(rect3) // {x -100 y -100 w 100 h 100}Documentation:https://developer.apple.com/documentation/coregraphics/cgrect/1455837-union