WGS84、GCJ02、BD911坐标相互转换

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1、WGS84和BD911坐标相互转换使用百度地图API，代码如下：

    /**     * WGS84坐标转换BD911坐标     *  利用百度地图Api转换     * @param longitude     * @param latitude     * @return     */    public static LatLng WGS84ToBd911(double longitude, double latitude){        LatLng sourceLatLng=new LatLng(latitude,longitude);        CoordinateConverter converter  = new CoordinateConverter();        converter.from(CoordType.GPS);        // sourceLatLng待转换坐标          converter.coord(sourceLatLng);          LatLng desLatLng = converter.convert();        return desLatLng;    }

2、JCG02转WGS84坐标系

    /**     * gcj02坐标转换为WGS84坐标     * @param gcj02Lon     * @param gcj02Lat     * @return     */    public static YNLocation gcj02ToWGS84(double gcj02Lon,double gcj02Lat){        CoordsUtils coor = new CoordsUtils();        YNLocation location = coor.gcj_decrypt(gcj02Lat,gcj02Lon);        return location;    }

JCG02坐标转换为GPS坐标工具类

/** * JCG02坐标转换为GPS坐标工具类 *  参考网上资料 * @date 2016年9月29日 下午2:59:25 * @version V1.0 */public class CoordsUtils {    private double PI = 3.14159265358979324;    private double X_PI = 3.14159265358979324 * 3000.0 / 180.0;    public YNLocation gcj_decrypt(double lat, double lon) {        YNLocation d = delta(lat, lon);        double latitude = lat-d.getLatitude();        double longitude = lon-d.getLongitude();        YNLocation location = new YNLocation();        location.setLongitude(longitude);        location.setLatitude(latitude);        return location;    }    public YNLocation delta(double lat, double lon){        double a = 6378245.0; //  a: 卫星椭球坐标投影到平面地图坐标系的投影因子。        double ee = 0.00669342162296594323; //  ee: 椭球的偏心率。        double dLat = this.functionLat(lon - 105.0, lat - 35.0);        double dLon = this.functionLon(lon - 105.0, lat - 35.0);        double radLat = lat / 180.0 * this.PI;        double magic = Math.sin(radLat);        magic = 1 - ee * magic * magic;        double sqrtMagic = Math.sqrt(magic);        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * this.PI);        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * this.PI);        YNLocation loc = new YNLocation();        loc.setLongitude(dLon);        loc.setLatitude(dLat);        return loc;    }    private double functionLat (double x, double y) {        double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));        ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;        ret += (20.0 * Math.sin(y * this.PI) + 40.0 * Math.sin(y / 3.0 * this.PI)) * 2.0 / 3.0;        ret += (160.0 * Math.sin(y / 12.0 * this.PI) + 320 * Math.sin(y * this.PI / 30.0)) * 2.0 / 3.0;        return ret;    }    private double functionLon (double x, double y) {        double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));        ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;        ret += (20.0 * Math.sin(x * this.PI) + 40.0 * Math.sin(x / 3.0 * this.PI)) * 2.0 / 3.0;        ret += (150.0 * Math.sin(x / 12.0 * this.PI) + 300.0 * Math.sin(x / 30.0 * this.PI)) * 2.0 / 3.0;        return ret;    }}

坐标实体类

/** * 位置信息 */public class YNLocation {    /**     * 经度     */    private double longitude;    /**     * 纬度     */    private double latitude;    /**     * 海拔     */    private double altitude;    /**     * 速度     */    private double speed;    /**     * 方向     */    private double direction;    public YNLocation() {        super();    }    public YNLocation(double longitude, double latitude) {        super();        this.longitude = longitude;        this.latitude = latitude;    }    public double getLongitude() {        return longitude;    }    public void setLongitude(double longitude) {        this.longitude = longitude;    }    public double getLatitude() {        return latitude;    }    public void setLatitude(double latitude) {        this.latitude = latitude;    }    public double getAltitude() {        return altitude;    }    public void setAltitude(double altitude) {        this.altitude = altitude;    }    public double getSpeed() {        return speed;    }    public void setSpeed(double speed) {        this.speed = speed;    }    public double getDirection() {        return direction;    }    public void setDirection(double direction) {        this.direction = direction;    }}

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