Java实现WGS84、百度坐标系、腾讯左边西、高德坐标系转化工具类。
主要是WGS84(大地坐标系)、GCJ02(国测局坐标系，如高德地图、腾讯地图、谷歌中国范围地图)、BD09(百度坐标系)三种主流坐标系之间的转换。
注意：如果经纬度8位数字的需要进行转换：例如：69857065/600000=“116.428441” 即是真实的WGS84坐标
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* 常用地图转换工具类（各个地图API采用的坐标系(WGS84坐标系：即地球坐标系，国际上通用的坐标系。谷歌地图用此坐标)）
* 百度地图API 百度坐标 (BD09坐标系：即百度坐标系，GCJ02坐标系经加密后的坐标系。)
* 腾讯搜搜地图API 火星坐标 (GCJ02坐标系：即火星坐标系，WGS84坐标系经加密后的坐标系。)
* 阿里云地图API 火星坐标 (GCJ02坐标系：即火星坐标系，WGS84坐标系经加密后的坐标系。)
* 高德MapABC地图API 火星坐标 (GCJ02坐标系：即火星坐标系，WGS84坐标系经加密后的坐标系。)
*/
public class MapUtils {
public static final double r2d = 57.2957795131;
public static final double PI = 3.1415926535897932384626433832795;
public static final double rearth = 6371006.84;
/**
* wgs84坐标转上海城市坐标
* @param lat 维度
* @param lon 经度
* @return
*/
public static Map<String, Double> wgs84Tosh(Double lat, Double lon) {
double tolat = (31 + (14.0 + 7.55996 / 60.0) / 60.0) / r2d;
double tolon = (121.0 + (28.0 + 1.80651 / 60.0) / 60) / r2d;
Double frlat = lat / r2d;
Double frlon = lon / r2d;
Double clatt = Math.cos(frlat);
Double clatf = Math.cos(tolat);
Double slatt = Math.sin(frlat);
Double slatf = Math.sin(tolat);
Double dlon = frlon - tolon;
Double cdlon = Math.cos(dlon);
Double sdlon = Math.sin(dlon);
Double cdist = slatf * slatt + clatf * clatt * cdlon;
Double temp = (clatt * sdlon) * (clatt * sdlon) + (clatf * slatt - slatf * clatt * cdlon) * (clatf * slatt - slatf * clatt * cdlon);
Double sdist = Math.sqrt(Math.abs(temp));
Double gcdist = 0.0;
if ((Math.abs(sdist) > 1e-7) || (Math.abs(cdist) > 1e-7))
gcdist = Math.atan2(sdist, cdist);
Double sbrg = sdlon * clatt;
Double cbrg = (clatf * slatt - slatf * clatt * cdlon);
if ((Math.abs(sbrg) > 1e-7) || (Math.abs(cbrg) > 1e-7)) {
temp = Math.atan2(sbrg, cbrg);
while (temp < 0) {
temp = temp + 2 * PI;
}
}
Double hor = gcdist * rearth;
Double xx = hor * Math.sin(temp);
Double yy = hor * Math.cos(temp);
Map<String,Double> model = new HashMap<String,Double>();
model.put("lat", xx);
model.put("lon", yy);
return model;
}
public static final Double m_pNorthMove = -3457000.0;
public static final Double m_pSHa = 6378245.0;
public static final double m_pSHf = 298.3;
public static final double m_pWGS84a = 6371006.84;
public static final double m_pWGS84f = 298.25722356300003;
/**
* 上海城市坐标转WGS84坐标
* @param East 经(东部)
* @param North 纬(北部)
* @param InH 内部高度(默认可以用 0.0)
* @return
*/
public static Map<String, Double> ShToWGS84(Double East, Double North, Double InH) {
North = North - m_pNorthMove;
List<Double> a = AntiGaussProjectionConst(m_pSHa, m_pSHf, East, North);
Double rB = a.get(0);
Double rl = a.get(1);
Double m_pCenterL = DMSToDegree(121.0, 28.0, 0.0);
Double dL = RadianToDegree(rl) + m_pCenterL;
Double tB = rB;
Double tL = DegreeToRadian(dL);
Double tH = InH;
/* Double sB = 0.0;
Double sL = 0.0;
Double sH = 0.0;*/
ArrayList<Double> m_pPara = new ArrayList<Double>();
m_pPara.add(-39.208938);
m_pPara.add(65.046547);
m_pPara.add(49.410739);
m_pPara.add(SecondToRadian(6.125483));
m_pPara.add(SecondToRadian(-1.281548));
m_pPara.add(SecondToRadian(-0.861599));
m_pPara.add(2.916036 * 1e-6);
List<Double> b = LBH7ParameterSelf(tL, tB, tH, m_pSHa, 1.0 / m_pSHf, m_pPara.get(0),
m_pPara.get(1), m_pPara.get(2), m_pPara.get(3),
m_pPara.get(4), m_pPara.get(5), m_pPara.get(6),
m_pWGS84a, 1.0 / m_pWGS84f);
ArrayList<Double> a1 = RadianToDMS(b.get(0));
ArrayList<Double> a2 = RadianToDMS(b.get(1));
Double b1 = a1.get(0) + a1.get(1) / 60 + a1.get(2) / 3600;
Double b2 = a2.get(0) + a2.get(1) / 60 + a2.get(2) / 3600;
/*百度偏移*/
/*谷歌偏移*/
b1 = b1 + 0.000935;
b2 = b2 + 0.002651;
Map<String,Double> model = new HashMap<String,Double>();
model.put("lat", b1);
model.put("lon", b2);
return model;
}
/**
* WGS-84转GCJ坐标
* @param wgsLat
* @param wgsLon
* @return
*/
public static Map<String, Double> gcj_encrypt(Double wgsLat, Double wgsLon) {
Map<String,Double> model = new HashMap<String,Double>();
if (outOfChina(wgsLat, wgsLon)) {
model.put("lat", wgsLat);
model.put("lon", wgsLon);
return model;
}
Map<String, Double> d = delta(wgsLat, wgsLon);
model.put("lat", wgsLat + (Double) d.get("lat"));
model.put("lon", wgsLon + (Double) d.get("lon"));
return model;
}
/**
* GCJ坐标转WGS-84坐标
* @param gcjLat
* @param gcjLon
* @return
*/
public static Map<String, Double> gcj_decrypt(Double gcjLat, Double gcjLon) {
Map<String, Double> model = new HashMap<String, Double>();
if (outOfChina(gcjLat, gcjLon)) {
model.put("lat", gcjLat);
model.put("lon", gcjLon);
return model;
}
Map<String, Double> d = delta(gcjLat, gcjLon);
model.put("lat", gcjLat - (Double) d.get("lat"));
model.put("lon", gcjLon - (Double) d.get("lon"));
return model;
}
public static final double x_pi = PI * 3000.0 / 180.0;
/**
* GCJ-02坐标转百度BD-09坐标
* @param gcjLat
* @param gcjLon
* @return
*/
public static Map<String, Double> bd_encrypt(Double gcjLat, Double gcjLon) {
Map<String, Double> model = new HashMap<String, Double>();
Double x = gcjLon, y = gcjLat;
Double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
Double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
Double bdLon = z * Math.cos(theta) + 0.0065;
Double bdLat = z * Math.sin(theta) + 0.006;
model.put("lat", bdLat);
model.put("lon", bdLon);
return model;
}
/**
* 百度BD-09坐标转GCJ-02坐标
* @param bdLat
* @param bdLon
* @return
*/
public static Map<String, Double> bd_decrypt(Double bdLat, Double bdLon) {
Map<String, Double> model = new HashMap<String, Double>();
Double x = bdLon - 0.0065, y = bdLat - 0.006;
Double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
Double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
Double gcjLon = z * Math.cos(theta);
Double gcjLat = z * Math.sin(theta);
model.put("lat", gcjLat);
model.put("lon", gcjLon);
return model;
}
public static Boolean outOfChina(Double lat, Double lon) {
if (lon < 72.004 || lon > 137.8347)
return true;
if (lat < 0.8293 || lat > 55.8271)
return true;
return false;
}
public static Map<String, Double> 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 = transformLat(lon - 105.0, lat - 35.0);
Double dLon = transformLon(lon - 105.0, lat - 35.0);
Double radLat = lat / 180.0 * 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) * PI);
dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * PI);
Map<String,Double> model = new HashMap<String,Double>();
model.put("lat", dLat);
model.put("lon", dLon);
return model;
}
public static Double transformLat(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 * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(y * PI) + 40.0 * Math.sin(y / 3.0 * PI)) * 2.0 / 3.0;
ret += (160.0 * Math.sin(y / 12.0 * PI) + 320 * Math.sin(y * PI / 30.0)) * 2.0 / 3.0;
return ret;
}
public static Double transformLon(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 * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
ret += (20.0 * Math.sin(x * PI) + 40.0 * Math.sin(x / 3.0 * PI)) * 2.0 / 3.0;
ret += (150.0 * Math.sin(x / 12.0 * PI) + 300.0 * Math.sin(x / 30.0 * PI)) * 2.0 / 3.0;
return ret;
}
public static final double MPD = 60.0;
public static final double SPD = 3600.0;
public static final double SPM = 60.0;
public static ArrayList<Double> RadianToDMS(Double radian) {
Boolean isNegative;
Double degree = 0.0;
Double minute = 0.0;
Double second = 0.0;
isNegative = false;
if (radian < 0.0) {
isNegative = false;
radian = Math.abs(radian);
} else {
isNegative = false;
degree = radian * DPR;
minute = (degree - Math.floor(degree)) * MPD;
degree = Math.floor(degree);
second = (minute - Math.floor(minute)) * SPM;
minute = Math.floor(minute);
if (isNegative) {
degree = -degree;
minute = -minute;
second = -second;
}
}
ArrayList<Double> datalist = new ArrayList<Double>();
datalist.add(degree);
datalist.add(minute);
datalist.add(second);
return datalist;
}
public static ArrayList<Double> LBH7ParameterSelf(Double Ls, Double Bs, Double Hs, Double fA, Double fF, Double dX,
Double dY, Double dZ, Double ex, Double ey, Double ez, Double m, Double at, Double ft) {
Double Xs, Ys, Zs, Xt, Yt, Zt, Lt, Bt, Ht;
ArrayList<Double> datalist = new ArrayList<Double>();
ArrayList<Double> a = LBHToXYZ(fA, 1.0 / fF, Ls, Bs, Hs);
Xs = a.get(0);
Ys = a.get(1);
Zs = a.get(2);
ArrayList<Double> b = XYZ7Parameter(Xs, Ys, Zs, dX, dY, dZ, ex, ey, ez, m);
Xt = b.get(0);
Yt = b.get(1);
Zt = b.get(2);
ArrayList<Double> c = XYZToLBHBowring(at, 1.0 / ft, Xt, Yt, Zt);
Lt = c.get(0);
Bt = c.get(1);
Ht = c.get(2);
datalist.add(Lt);
datalist.add(Bt);
datalist.add(Ht);
return datalist;
}
public static final double EQUALDE = 0.00000000000001;
public static ArrayList<Double> AntiGaussProjectionConst(Double curra, Double currinvf, Double East, Double North) {
Double currf, currb, curre12, curre22, curre14, curre16, curre18, currAp, currBp, currCp, currDp, currEp;
Double A2, A4, A6, A8, currB2, currB4, currB6, currB8, phi, Bf, Nf, tf, cosBf, etaf2;
Double B, l;
ArrayList<Double> datalist = new ArrayList<Double>();
if ((Math.abs(East) < EQUALDE) && (Math.abs(North) < EQUALDE)) {
B = 0.0;
l = 0.0;
}
currf = 1 / currinvf;
currb = curra * (1 - currf);
curre12 = (curra * curra - currb * currb) / (curra * curra);
curre22 = (curra * curra - currb * currb) / (currb * currb);
curre14 = curre12 * curre12;
curre16 = curre14 * curre12;
curre18 = curre14 * curre14;
currAp = 1 + 3.0 / 4.0 * curre12 + 45.0 / 64.0 * curre14 + 175.0 / 256.0 * curre16 + 11025.0 / 16384.0 * curre18;
currBp = 3.0 / 4.0 * curre12 + 15.0 / 16.0 * curre14 + 525.0 / 512.0 * curre16 + 2205.0 / 2048.0 * curre18;
currCp = 15.0 / 64.0 * curre14 + 105.0 / 256.0 * curre16 + 2205.0 / 4096.0 * curre18;
currDp = 35.0 / 512.0 * curre16 + 315.0 / 2048.0 * curre18;
currEp = 315.0 / 16384.0 * curre18;
A2 = currBp / (2 * currAp);
A4 = -currCp / (4 * currAp);
A6 = currDp / (6 * currAp);
A8 = -currEp / (8 * currAp);
currB2 = A2 - A2 * A4 - A4 * A6 - 0.5 * A2 * A2 * A2 - A2 * A4 * A4 + 0.5 * A2 * A2 * A6 - 18.3 * A2 * A2 * A2 * A4;
currB4 = A4 + A2 * A2 - 2.0 * A2 * A6 - 4.0 * A2 * A2 * A4 - 1.3 * A2 * A2 * A2 * A2;
currB6 = A6 + 3.0 * A2 * A4 - 3.0 * A2 * A8 + 1.5 * A2 * A2 * A2 - 4.5 * A2 * A4 * A4 - 9.0 * A2 * A2 * A6 - 12.5 * A2 * A2 * A2 * A4;
currB8 = A8 + 2.0 * A4 * A4 + 4.0 * A2 * A6 + 8.0 * A2 * A2 * A4 + 2.7 * A2 * A2 * A2 * A2;
phi = North / (curra * (1 - curre12) * currAp);
Bf = phi + currB2 * Math.sin(2 * phi) + currB4 * Math.sin(4 * phi) + currB6 * Math.sin(6 * phi) + currB8 * Math.sin(8 * phi);
if (Math.abs(Math.abs(Bf) - PI / 2.0) < EQUALDE) {
B = Bf;
l = 0.0;
datalist.add(B);
datalist.add(l);
return datalist;
}
Nf = curra / Math.sqrt(1 - curre12 * Math.sin(Bf) * Math.sin(Bf));
tf = Math.tan(Bf);
cosBf = Math.cos(Bf);
etaf2 = curre22 * cosBf * cosBf;
B = Bf + tf * (-1 - etaf2) * East * East / (2 * Nf * Nf)
+ tf * (5 + 3 * tf * tf + 6 * etaf2 - 6 * tf * tf * etaf2 - 3 * etaf2 * etaf2 - 9 * tf * tf * etaf2 * etaf2) * East * East * East * East / (24 * Nf * Nf * Nf * Nf)
+ tf * (-61 - 90 * tf * tf - 45 * tf * tf * tf * tf - 107 * etaf2 + 162 * tf * tf * etaf2 + 45 * tf * tf * tf * tf * etaf2) * East * East * East * East * East * East / (720 * Nf * Nf * Nf * Nf * Nf * Nf);
l = East / (Nf * cosBf)
+ (-1 - 2 * tf * tf - etaf2) * East * East * East / (6 * Nf * Nf * Nf * cosBf)
+ (5 + 28 * tf * tf + 24 * tf * tf * tf * tf + 6 * etaf2 + 8 * tf * tf * etaf2) * East * East * East * East * East / (120 * Nf * Nf * Nf * Nf * Nf * cosBf);
datalist.add(B);
datalist.add(l);
return datalist;
}
public static final double DPM = 0.016666666666666666666666666666667;
public static final double DPS = 0.00027777777777777777777777777777778;
public static Double DMSToDegree(Double degree, Double minute, Double second) {
Boolean isNegative;
if ((degree < 0.0) || (minute < 0.0) || (second < 0.0)) {
isNegative = true;
degree = Math.abs(degree);
minute = Math.abs(minute);
second = Math.abs(second);
} else
isNegative = false;
degree = degree + minute * DPM + second * DPS;
if (isNegative) {
return -degree;
} else
return degree;
}
public static final double DPR = 57.295779513082320876798154814105;
public static final double RPD = 0.017453292519943295769236907684886;
public static final double RPS = 0.0000048481368110953599358991410235795;
public static Double RadianToDegree(Double radian) {
return radian * DPR;
}
public static Double DegreeToRadian(Double degree) {
return degree * RPD;
}
public static Double SecondToRadian(Double second) {
return second * RPS;
}
public static ArrayList<Double> XYZToLBHBowring(Double curra, Double currinvf, Double X, Double Y, Double Z) {
Double L, B, H;
Double Rxy, f, e12, e22, tanu, cosu, sinu, temp;
Double sinB;
ArrayList<Double> datalist = new ArrayList<Double>();
if ((X == 0) && (Y == 0)) {
if (Z < 0) {
L = 0.0;
B = -PI / 2;
H = -(Z + curra * (1 - 1 / currinvf));
} else if (Z > 0) {
L = 0.0;
B = PI / 2;
H = Z - curra * (1 - 1 / currinvf);
} else {
L = 0.0;
B = 0.0;
H = -curra;
}
}
Rxy = Math.sqrt(X * X + Y * Y);
//Get L
L = Math.acos(X / Rxy);
if (Y < 0) L = -L;
//Get B
f = 1 / currinvf;
e12 = (2 - f) * f;
e22 = e12 / (1 - e12);
tanu = Z * Math.sqrt(1 + e22) / Rxy;
cosu = 1 / Math.sqrt(1 + tanu * tanu);
sinu = tanu * cosu;
temp = Rxy - curra * e12 * cosu * cosu * cosu;
if (temp == 0) {
if (Z < 0)
B = -PI / 2;
else
B = PI / 2;
} else
B = Math.atan((Z + curra * (1 - f) * e22 * sinu * sinu * sinu) / temp);
//Get H
sinB = Math.sin(B);
if (Math.abs(B) < 4.8e-10)
H = Rxy / Math.cos(B) - curra / Math.sqrt(1 - e12 * sinB * sinB);
else
H = Z / sinB - curra / Math.sqrt(1 - e12 * sinB * sinB) * (1 - e12);
datalist.add(L);
datalist.add(B);
datalist.add(H);
return datalist;
}
public static ArrayList<Double> LBHToXYZ(Double curra, Double currinvf, Double L, Double B, Double H) {
Double e12, N, X, Y, Z;
ArrayList<Double> datalist = new ArrayList<Double>();
e12 = (2.0 - 1.0 / currinvf) / currinvf;
N = curra / Math.sqrt(1 - e12 * Math.sin(B) * Math.sin(B));
X = (N + H) * Math.cos(B) * Math.cos(L);
Y = (N + H) * Math.cos(B) * Math.sin(L);
Z = (N * (1 - e12) + H) * Math.sin(B);
datalist.add(X);
datalist.add(Y);
datalist.add(Z);
return datalist;
}
public static ArrayList<Double> XYZ7Parameter(Double Xs, Double Ys, Double Zs, Double dX, Double dY, Double dZ, Double ex,
Double ey, Double ez, Double m) {
Double Xt, Yt, Zt;
ArrayList<Double> datalist = new ArrayList<Double>();
Xt = Xs * (1 + m) + Ys * ez - Zs * ey + dX;
Yt = Ys * (1 + m) - Xs * ez + Zs * ex + dY;
Zt = Zs * (1 + m) + Xs * ey - Ys * ex + dZ;
datalist.add(Xt);
datalist.add(Yt);
datalist.add(Zt);
return datalist;
}
}