How to calculate the Manhattan distance between two CGPoints
Swift version: 5.4
Manhattan distance is the distance between two integer points when you are unable to move diagonally. It's named "Manhattan distance" because of the grid-like layout of New York: whether you go four streets up then five streets across, or five streets across then four streets up, or you zig zag to and fro, the actual end distance is identical because you're just moving across a grid.
If you want to calculate Manhattan distance in your own code, just drop in this function:
func CGPointManhattanDistance(from: CGPoint, to: CGPoint) -> CGFloat {
return (abs(from.x - to.x) + abs(from.y - to.y))
}
SPONSORED Join a FREE crash course for iOS devs who want to become complete senior developers — from October 18th to 24th. Learn how to apply iOS app architecture patterns through a series of lectures and practical coding sessions.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 2.0
Similar solutions…
- How to calculate the distance between two CGPoints
- How to calculate the point where two lines intersect
- How to calculate the SHA hash of a String or Data instance
- How to calculate the ROT13 of a string
- How to calculate division remainder using modulo
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
