美文网首页定位iOS DeveloperDevSupport
ios-地球坐标转火星坐标,火星坐标转百度坐标,百度坐标转火星

ios-地球坐标转火星坐标,火星坐标转百度坐标,百度坐标转火星

作者: 鬼灯水月 | 来源:发表于2016-10-26 17:09 被阅读433次

    #import<CoreLocation/CoreLocation.h>

    CLLocation类扩展

    */

    @interface CLLocation (Sino)

    /**地球坐标转火星坐标*/

    - (CLLocation*)locationMarsFromEarth;

    /**火星坐标转百度坐标*/

    - (CLLocation*)locationBearPawFromMars;

    /**百度坐标转火星坐标*/

    - (CLLocation*)locationMarsFromBearPaw;

    #import "CLLocation+Sino.h"

    void transform_earth_2_mars(double lat, double lng, double* tarLat, double* tarLng);

    void transform_mars_2_bear_paw(double lat, double lng, double* tarLat, double* tarLng);

    void transform_bear_paw_2_mars(double lat, double lng, double* tarLat, double* tarLng);

    @implementation CLLocation (Sino)

    - (CLLocation*) locationMarsFromEarth {

    double lat = 0.0;

    double lng = 0.0;

    transform_earth_2_mars(self.coordinate.latitude, self.coordinate.longitude, &lat, &lng);

    return [[CLLocation alloc] initWithCoordinate:CLLocationCoordinate2DMake(lat, lng)

    altitude:self.altitude

    horizontalAccuracy:self.horizontalAccuracy

    verticalAccuracy:self.verticalAccuracy

    course:self.course

    speed:self.speed

    timestamp:self.timestamp];

    }

    - (CLLocation*) locationBearPawFromMars {

    double lat = 0.0;

    double lng = 0.0;

    transform_mars_2_bear_paw(self.coordinate.latitude, self.coordinate.longitude, &lat, &lng);

    return [[CLLocation alloc] initWithCoordinate:CLLocationCoordinate2DMake(lat, lng)

    altitude:self.altitude

    horizontalAccuracy:self.horizontalAccuracy

    verticalAccuracy:self.verticalAccuracy

    course:self.course

    speed:self.speed

    timestamp:self.timestamp];

    }

    - (CLLocation*) locationMarsFromBearPaw {

    double lat = 0.0;

    double lng = 0.0;

    transform_bear_paw_2_mars(self.coordinate.latitude, self.coordinate.longitude, &lat, &lng);

    return [[CLLocation alloc] initWithCoordinate:CLLocationCoordinate2DMake(lat, lng)

    altitude:self.altitude

    horizontalAccuracy:self.horizontalAccuracy

    verticalAccuracy:self.verticalAccuracy

    course:self.course

    speed:self.speed

    timestamp:self.timestamp];

    }

    @end

    const double a = 6378245.0;

    const double ee = 0.00669342162296594323;

    bool transform_sino_out_china(double lat, double lon) {

    if (lon < 72.004 || lon > 137.8347)

    return true;

    if (lat < 0.8293 || lat > 55.8271)

    return true;

    return false;

    }

    double transform_earth_2_mars_lat(double x, double y) {

    double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * sqrt(abs(x));

    ret += (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0;

    ret += (20.0 * sin(y * M_PI) + 40.0 * sin(y / 3.0 * M_PI)) * 2.0 / 3.0;

    ret += (160.0 * sin(y / 12.0 * M_PI) + 320 * sin(y * M_PI / 30.0)) * 2.0 / 3.0;

    return ret;

    }

    double transform_earth_2_mars_lng(double x, double y) {

    double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * sqrt(abs(x));

    ret += (20.0 * sin(6.0 * x * M_PI) + 20.0 * sin(2.0 * x * M_PI)) * 2.0 / 3.0;

    ret += (20.0 * sin(x * M_PI) + 40.0 * sin(x / 3.0 * M_PI)) * 2.0 / 3.0;

    ret += (150.0 * sin(x / 12.0 * M_PI) + 300.0 * sin(x / 30.0 * M_PI)) * 2.0 / 3.0;

    return ret;

    }

    void transform_earth_2_mars(double lat, double lng, double* tarLat, double* tarLng) {

    if (transform_sino_out_china(lat, lng)) {

    *tarLat = lat;

    *tarLng = lng;

    return;

    }

    double dLat = transform_earth_2_mars_lat(lng - 105.0, lat - 35.0);

    double dLon = transform_earth_2_mars_lng(lng - 105.0, lat - 35.0);

    double radLat = lat / 180.0 * M_PI;

    double magic = sin(radLat);

    magic = 1 - ee * magic * magic;

    double sqrtMagic = sqrt(magic);

    dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * M_PI);

    dLon = (dLon * 180.0) / (a / sqrtMagic * cos(radLat) * M_PI);

    *tarLat = lat + dLat;

    *tarLng = lng + dLon;

    }

    const double x_pi = M_PI * 3000.0 / 180.0;

    void transform_mars_2_bear_paw(double gg_lat, double gg_lon, double *bd_lat, double *bd_lon) {

    double x = gg_lon, y = gg_lat;

    double z = sqrt(x * x + y * y) + 0.00002 * sin(y * x_pi);

    double theta = atan2(y, x) + 0.000003 * cos(x * x_pi);

    *bd_lon = z * cos(theta) + 0.0065;

    *bd_lat = z * sin(theta) + 0.006;

    }

    void transform_bear_paw_2_mars(double bd_lat, double bd_lon, double *gg_lat, double *gg_lon) {

    double x = bd_lon - 0.0065, y = bd_lat - 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);

    *gg_lon = z * cos(theta);

    *gg_lat = z * sin(theta);

    }

    相关文章

      网友评论

      • goodthing:一行注释都没有,楼主可以啊

      本文标题:ios-地球坐标转火星坐标,火星坐标转百度坐标,百度坐标转火星

      本文链接:https://www.haomeiwen.com/subject/dnzxsttx.html