swiftLocationManager坐标偏移WGS-84转GCJ-02（火星坐标）

swiftLocationManager坐标偏移WGS-84转GCJ-02（⽕星坐标）

import Foundation

import M鸽子汤回奶吗 apKit

class LocationUtils {

class func isCoordinateOutOfChina(coordinate:CLLocationCoordinate2D) -> Bool{

return ude < 72.004 || ude > 137.8347 || de < 0.8293 || de > 55.8271

}

class func transformToGCJ(fromWGS wgsLoc:CLLocationCoordinate2D) ->CLLocationCoordinate2D{

let a = 6小狗抬花轿 378245.0;

天眼的作用 let ee = 0.96594323;

let pi = 3.979324;

func transformLat(x:CLLocationDegrees,y:CLLocationDegrees) -> CLLocationDegrees {

var lat:CLLocationDegrees = -100.0 + 2.0 * x + 3.0 * y

lat += 0.2 * y * y

lat += 0.1 * x * y + 0.2 * sqrt(abs(x))

lat += (20.0 * sin(6.0 * x * pi) + 20.0 * sin(2.0 * x * pi)) * 2.0 / 3.0

lat += (20.0 * sin(y * pi) + 40.0 * sin(y / 3.0 * pi)) * 2.0 / 3.0

lat += (160.0 * sin(y / 12.0 * pi) + 320 * 公司调查 sin(y * pi / 30.0)) * 2.0 / 3.0

return lat;

}

func transformLog(x:CLLocationDegrees,y:CLLocationDegrees) -> CLLocationDegrees {

var lon:CLLocationDegrees = 300.0 + x + 2.0 * y + 0.1 * x * x

lon += 0.1 * x * y + 0.1 * sqrt(abs(x))

lon += (20.0 * sin(6.0 * x * pi) + 20.0 * sin(2.0 * x * pi)) * 2.0 / 3.0

lon += (20.0 * sin(x * pi) + 40.0 * sin(x / 3.0 * pi)) * 2.0 / 3.0

lon += (150.0 * sin(x / 12.0 * pi) + 300.0 * sin(x / 30.0 * pi)) * 2.0 / 3.0

return lon;

}

var adjustLat = transformLat(ude - 105.0, de - 35.0);

var adjustLon = transformLog(ude - 105.0 ,de - 35.0);

第一次十字军东征 var radLat = de / 180.0 * pi;

var magic = sin(radLat);

magic = 1 - ee * magic * magic;

var sqrtMagic = sqrt(magic);

adjustLat = (adjustLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi)滋阴 ;

adjustLon = (adjustLon * 180.0) / (a / sqrtMagic * cos(radLat) * pi);

return CLLocationCoordinate2D(latitude: de + adjustLat, longitude: ude + adjustLon);

}

}

public extension CLLocationCoordinate2D {

func adjust() ->CLLocationCoordinate2D {

return dinateOutOfC莲藕炒牛肉 hina(lf) ? lf : ormToGCJ(fromWGS: lf)

}三年级优秀日记

}

直接贴代码，参考了

简单封装了下，

⼯具类+扩展类，适⽤于各种地⽅，建议⼤家把这个直接放到⾃⼰的library⾥⾯

⽤的时候这样：

var newLocation = as CLLocation

var adjustedCoordinate = ()

var region = MKCoordinateRegionMakeWithDistance(adjustedCoordinate, 100, 100)

ion(region, animated: true)

本来想扩展CLLocation 的 convention init 函数，直接修改接收到明星收入排行榜 的location，但它⾥⾯的init 都是protected，没法实现，算了