iOS 百度与高德地图坐标的互相转换
1 // 2 // JZLocationConverter.h 3 // JZCLLocationMangerDome 4 // 5 // Created by jack zhou on 13-8-22. 6 // Copyright (c) 2013年 JZ. All rights reserved. 7 // 8 9 #import <Foundation/Foundation.h> 10 #import <CoreLocation/CoreLocation.h> 11 @interface JZLocationConverter : NSObject 12 13 /** 14 * @brief 世界标准地理坐标(WGS-84) 转换成 中国国测局地理坐标（GCJ-02）<火星坐标> 15 * 16 * ####只在中国大陆的范围的坐标有效，以外直接返回世界标准坐标 17 * 18 * @param location 世界标准地理坐标(WGS-84) 19 * 20 * @return 中国国测局地理坐标（GCJ-02）<火星坐标> 21 */ 22 + (CLLocationCoordinate2D)wgs84ToGcj02:(CLLocationCoordinate2D)location; 23 24 25 /** 26 * @brief 中国国测局地理坐标（GCJ-02） 转换成 世界标准地理坐标（WGS-84） 27 * 28 * ####此接口有1－2米左右的误差，需要精确定位情景慎用 29 * 30 * @param location 中国国测局地理坐标（GCJ-02） 31 * 32 * @return 世界标准地理坐标（WGS-84） 33 */ 34 + (CLLocationCoordinate2D)gcj02ToWgs84:(CLLocationCoordinate2D)location; 35 36 37 /** 38 * @brief 世界标准地理坐标(WGS-84) 转换成 百度地理坐标（BD-09) 39 * 40 * @param location 世界标准地理坐标(WGS-84) 41 * 42 * @return 百度地理坐标（BD-09) 43 */ 44 + (CLLocationCoordinate2D)wgs84ToBd09:(CLLocationCoordinate2D)location; 45 46 47 /** 48 * @brief 中国国测局地理坐标（GCJ-02）<火星坐标> 转换成 百度地理坐标（BD-09) 49 * 50 * @param location 中国国测局地理坐标（GCJ-02）<火星坐标> 51 * 52 * @return 百度地理坐标（BD-09) 53 */ 54 + (CLLocationCoordinate2D)gcj02ToBd09:(CLLocationCoordinate2D)location; 55 56 57 /** 58 * @brief 百度地理坐标（BD-09) 转换成 中国国测局地理坐标（GCJ-02）<火星坐标> 59 * 60 * @param location 百度地理坐标（BD-09) 61 * 62 * @return 中国国测局地理坐标（GCJ-02）<火星坐标> 63 */ 64 + (CLLocationCoordinate2D)bd09ToGcj02:(CLLocationCoordinate2D)location; 65 66 67 /** 68 * @brief 百度地理坐标（BD-09) 转换成 世界标准地理坐标（WGS-84） 69 * 70 * ####此接口有1－2米左右的误差，需要精确定位情景慎用 71 * 72 * @param location 百度地理坐标（BD-09) 73 * 74 * @return 世界标准地理坐标（WGS-84） 75 */ 76 + (CLLocationCoordinate2D)bd09ToWgs84:(CLLocationCoordinate2D)location; 77 78 79 @end
1 // 2 // JZLocationConverter.m 3 // JZCLLocationMangerDome 4 // 5 // Created by jack zhou on 13-8-22. 6 // Copyright (c) 2013年 JZ. All rights reserved. 7 // 8 9 #import "JZLocationConverter.h" 10 #import <CoreLocation/CoreLocation.h> 11 #define LAT_OFFSET_0(x,y) -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(fabs(x)) 12 #define LAT_OFFSET_1 (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0 13 #define LAT_OFFSET_2 (20.0 * sin(y * M_PI) + 40.0 * sin(y / 3.0 * M_PI)) * 2.0 / 3.0 14 #define LAT_OFFSET_3 (160.0 * sin(y / 12.0 * M_PI) + 320 * sin(y * M_PI / 30.0)) * 2.0 / 3.0 15 16 #define LON_OFFSET_0(x,y) 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(fabs(x)) 17 #define LON_OFFSET_1 (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0 18 #define LON_OFFSET_2 (20.0 * sin(x * M_PI) + 40.0 * sin(x / 3.0 * M_PI)) * 2.0 / 3.0 19 #define LON_OFFSET_3 (150.0 * sin(x / 12.0 * M_PI) + 300.0 * sin(x / 30.0 * M_PI)) * 2.0 / 3.0 20 21 #define RANGE_LON_MAX 137.8347 22 #define RANGE_LON_MIN 72.004 23 #define RANGE_LAT_MAX 55.8271 24 #define RANGE_LAT_MIN 0.8293 25 // jzA = 6378245.0, 1/f = 298.3 26 // b = a * (1 - f) 27 // ee = (a^2 - b^2) / a^2; 28 #define jzA 6378245.0 29 #define jzEE 0.00669342162296594323 30 31 32 33 @implementation JZLocationConverter 34 35 + (double)transformLat:(double)x bdLon:(double)y 36 { 37 double ret = LAT_OFFSET_0(x, y); 38 ret += LAT_OFFSET_1; 39 ret += LAT_OFFSET_2; 40 ret += LAT_OFFSET_3; 41 return ret; 42 } 43 44 + (double)transformLon:(double)x bdLon:(double)y 45 { 46 double ret = LON_OFFSET_0(x, y); 47 ret += LON_OFFSET_1; 48 ret += LON_OFFSET_2; 49 ret += LON_OFFSET_3; 50 return ret; 51 } 52 53 + (BOOL)outOfChina:(double)lat bdLon:(double)lon 54 { 55 if (lon < RANGE_LON_MIN || lon > RANGE_LON_MAX) 56 return true; 57 if (lat < RANGE_LAT_MIN || lat > RANGE_LAT_MAX) 58 return true; 59 return false; 60 } 61 62 + (CLLocationCoordinate2D)gcj02Encrypt:(double)ggLat bdLon:(double)ggLon 63 { 64 CLLocationCoordinate2D resPoint; 65 double mgLat; 66 double mgLon; 67 if ([self outOfChina:ggLat bdLon:ggLon]) { 68 resPoint.latitude = ggLat; 69 resPoint.longitude = ggLon; 70 return resPoint; 71 } 72 double dLat = [self transformLat:(ggLon - 105.0)bdLon:(ggLat - 35.0)]; 73 double dLon = [self transformLon:(ggLon - 105.0) bdLon:(ggLat - 35.0)]; 74 double radLat = ggLat / 180.0 * M_PI; 75 double magic = sin(radLat); 76 magic = 1 - jzEE * magic * magic; 77 double sqrtMagic = sqrt(magic); 78 dLat = (dLat * 180.0) / ((jzA * (1 - jzEE)) / (magic * sqrtMagic) * M_PI); 79 dLon = (dLon * 180.0) / (jzA / sqrtMagic * cos(radLat) * M_PI); 80 mgLat = ggLat + dLat; 81 mgLon = ggLon + dLon; 82 83 resPoint.latitude = mgLat; 84 resPoint.longitude = mgLon; 85 return resPoint; 86 } 87 88 + (CLLocationCoordinate2D)gcj02Decrypt:(double)gjLat gjLon:(double)gjLon { 89 CLLocationCoordinate2D gPt = [self gcj02Encrypt:gjLat bdLon:gjLon]; 90 double dLon = gPt.longitude - gjLon; 91 double dLat = gPt.latitude - gjLat; 92 CLLocationCoordinate2D pt; 93 pt.latitude = gjLat - dLat; 94 pt.longitude = gjLon - dLon; 95 return pt; 96 } 97 98 + (CLLocationCoordinate2D)bd09Decrypt:(double)bdLat bdLon:(double)bdLon 99 { 100 CLLocationCoordinate2D gcjPt; 101 double x = bdLon - 0.0065, y = bdLat - 0.006; 102 double z = sqrt(x * x + y * y) - 0.00002 * sin(y * M_PI); 103 double theta = atan2(y, x) - 0.000003 * cos(x * M_PI); 104 gcjPt.longitude = z * cos(theta); 105 gcjPt.latitude = z * sin(theta); 106 return gcjPt; 107 } 108 109 +(CLLocationCoordinate2D)bd09Encrypt:(double)ggLat bdLon:(double)ggLon 110 { 111 CLLocationCoordinate2D bdPt; 112 double x = ggLon, y = ggLat; 113 double z = sqrt(x * x + y * y) + 0.00002 * sin(y * M_PI); 114 double theta = atan2(y, x) + 0.000003 * cos(x * M_PI); 115 bdPt.longitude = z * cos(theta) + 0.0065; 116 bdPt.latitude = z * sin(theta) + 0.006; 117 return bdPt; 118 } 119 120 121 + (CLLocationCoordinate2D)wgs84ToGcj02:(CLLocationCoordinate2D)location 122 { 123 return [self gcj02Encrypt:location.latitude bdLon:location.longitude]; 124 } 125 126 + (CLLocationCoordinate2D)gcj02ToWgs84:(CLLocationCoordinate2D)location 127 { 128 return [self gcj02Decrypt:location.latitude gjLon:location.longitude]; 129 } 130 131 132 + (CLLocationCoordinate2D)wgs84ToBd09:(CLLocationCoordinate2D)location 133 { 134 CLLocationCoordinate2D gcj02Pt = [self gcj02Encrypt:location.latitude 135 bdLon:location.longitude]; 136 return [self bd09Encrypt:gcj02Pt.latitude bdLon:gcj02Pt.longitude] ; 137 } 138 139 + (CLLocationCoordinate2D)gcj02ToBd09:(CLLocationCoordinate2D)location 140 { 141 return [self bd09Encrypt:location.latitude bdLon:location.longitude]; 142 } 143 144 + (CLLocationCoordinate2D)bd09ToGcj02:(CLLocationCoordinate2D)location 145 { 146 return [self bd09Decrypt:location.latitude bdLon:location.longitude]; 147 } 148 149 + (CLLocationCoordinate2D)bd09ToWgs84:(CLLocationCoordinate2D)location 150 { 151 CLLocationCoordinate2D gcj02 = [self bd09ToGcj02:location]; 152 return [self gcj02Decrypt:gcj02.latitude gjLon:gcj02.longitude]; 153 } 154 155 @end
源代码地址：https://github.com/JackZhouCn/JZLocationConverter
我采用的方法 + (CLLocationCoordinate2D)bd09ToWgs84:(CLLocationCoordinate2D)location 把百度API坐标转换之后调用高德地图导航
下面是朋友提供的api 高德转百度 如果想百度转高德 直接对方法进行逆反操作即可
+ (CLLocation *)AMapLocationFromBaiduLocation:(CLLocation *)BaiduLocation;
{
const double x_pi = M_PI * 3000.0 / 180.0;
double x = BaiduLocation.coordinate.longitude - 0.0065, y = BaiduLocation.coordinate.latitude - 0.006;
double z = sqrt(x * x + y * y) - 0.00002 * sin(y * x_pi);
double theta = atan2(y, x) - 0.000003 * cos(x * x_pi);
double AMapLongitude = z * cos(theta);
double AMapLatitude = z * sin(theta);
CLLocation *AMapLocation = [[CLLocation alloc] initWithLatitude:AMapLatitude longitude:AMapLongitude];
return AMapLocation;
}
