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sora0077 / MKMapView+Extensions.swift

Last active November 24, 2020 14:41 — forked from appsandwich/MKMapView+Extensions

Get & set the zoom level of a MKMapView

	import MapKit

	// http://troybrant.net/blog/2010/01/set-the-zoom-level-of-an-mkmapview/

	private let mercadorRadius: Double = 85445659.44705395
	private let mercadorOffset: Double = 268435456

	private func longitudeToPixelSpaceX(longitude: Double) -> Double {
	return round(mercadorOffset + mercadorRadius * longitude * .pi / 180.0);
	}