核心提示：
1、首先要识别地图厂商和采用的坐标系。一般一家厂商支持一种地图产品，采用一种坐标系。但是谷歌是例外，谷歌地图和谷歌地球是姊妹产品，前者采用火星坐标系，后者则是地球坐标(GPS).
2、原理是将原坐标先转为地球坐标（GPS），再转为目标坐标。
完整源代码下载地址：http://download.csdn.net/detail/zhujianlin1990/9766354
package learn.zhujl.geo.util;
import java.util.HashMap;
import java.util.Map;
import ch.hsr.geohash.GeoHash;
/**
* 类GeoUtil.java的实现描述：地理位置相关工具
*
* @author JianLin.Zhu 2015-8-30 下午2:54:08
*/
public class GeoUtil {
private final static double PI = CoordinateConverter.PI; // 圆周率
public final static double R = CoordinateConverter.AXIS; // 地球的半径
/**
* 获取geohash值
*
* @param latitude
* @param longitude
* @param numberOfCharacters 需要精确到第几位 1~12
* @return
*/
public static GeoHash getGeoHash(double latitude, double longitude, int numberOfCharacters) {
if (latitude < -90 || latitude > 90 || longitude > 180 || longitude < -180) {
latitude = 0;
longitude = 0;
}
return GeoHash.withCharacterPrecision(latitude, longitude, numberOfCharacters);
}
/**
* 坐标之间的距离
*
* @param lat1
* @param lng1
* @param lat2
* @param lng2
* @return 单位米
*/
public static double getDistance(double lat1, double lng1, double lat2, double lng2) {
lat1 = Math.toRadians(lat1);
lng1 = Math.toRadians(lng1);
lat2 = Math.toRadians(lat2);
lng2 = Math.toRadians(lng2);
double d1 = Math.abs(lat1 - lat2);
double d2 = Math.abs(lng1 - lng2);
double p = Math.pow(Math.sin(d1 / 2), 2) + Math.cos(lat1) * Math.cos(lat2) * Math.pow(Math.sin(d2 / 2), 2);
double dis = R * 2 * Math.asin(Math.sqrt(p));
return dis;
}
/**
* 坐标半径raidus米范围的角点坐标
*
* @param lat
* @param lon
* @param raidus 单位 米
* @return {minLat:xx,minLng:xx,maxLat:xx,maxLng:xx}
*/
public static Map<String, Double> getAround(double lat, double lon, int raidus) {
Double latitude = lat;
Double longitude = lon;
Double degree = (24901 * 1609) / 360.0;
double raidusMile = raidus;
Double dpmLat = 1 / degree;
Double radiusLat = dpmLat * raidusMile;
Double minLat = latitude - radiusLat;
Double maxLat = latitude + radiusLat;
Double mpdLng = degree * Math.cos(latitude * (PI / 180));
Double dpmLng = 1 / mpdLng;
Double radiusLng = dpmLng * raidusMile;
Double minLng = longitude - radiusLng;
Double maxLng = longitude + radiusLng;
Map<String, Double> map = new HashMap<String, Double>();
map.put("minLat", minLat);
map.put("minLng", minLng);
map.put("maxLat", maxLat);
map.put("maxLng", maxLng);
return map;
}
// -----------------------------------------------------------------------
// -------转换坐标 开始-----------------------------------------------------
/**
* 从火星坐标系转换为地球坐标系
*
* @param marsLat
* @param marsLon
* @return
*/
public static Point convertMars2Earth(double marsLat, double marsLon) {
double[] p = CoordinateConverter.gcj2WGSExactly(marsLat, marsLon);
return new Point(p[1], p[0]);
}
/**
* 从火星坐标系转换为地球坐标系
* @param point
* @return
*/
public static Point convertMars2Earth(Point point) {
return convertMars2Earth(point.getLat(),point.getLon());
}
/**
* 从地球坐标转换为火星坐标,例如:苹果坐标转高德坐标
*
* @param earthLat
* @param earthLon
* @return
*/
public static Point convertEarth2Mars(double earthLat, double earthLon) {
double[] p = CoordinateConverter.wgs2GCJ(earthLat, earthLon);
return new Point(p[1], p[0]);
}
/**
* 从地球坐标转换为火星坐标,例如:苹果坐标转高德坐标
*
* @param p
* @return
*/
public static Point convertEarth2Mars(Point p) {
return convertEarth2Mars(p.getLat(), p.getLon());
}
/**
* 百度坐标转火星坐标
*
* @param bd_lat
* @param bd_lon
* @return
*/
public static Point convertBaidu2Mars(double baiduLat, double baiduLon) {
double[] p = CoordinateConverter.bd092GCJ(baiduLat, baiduLon);
return new Point(p[1],p[0]);
}
/**
* 百度坐标转火星坐标
* @param point
* @return
*/
public static Point convertBaidu2Mars(Point point) {
return convertBaidu2Mars(point.getLat(), point.getLon());
}
/**
* 火星坐标转百度坐标
*
* @param mars_lat
* @param mars_lon
* @return
*/
public static Point convertMars2Baidu(double marsLat, double marsLon) {
double[] p = CoordinateConverter.gcj2BD09(marsLat, marsLon);
return new Point(p[1],p[0]);
}
/**
* 火星坐标转百度坐标
* @param point
* @return
*/
public static Point convertMars2Baidu(Point point) {
return convertMars2Baidu(point.getLat(), point.getLon());
}
/**
* 百度坐标转地球坐标
* @param baiduLat
* @param baiduLon
* @return
*/
public static Point convertBaidu2Earth(double baiduLat, double baiduLon) {
return convertMars2Earth(convertBaidu2Mars(baiduLat, baiduLon));
}
/**
* 百度坐标转地球坐标
* @param point 百度坐标
* @return
*/
public static Point convertBaidu2Earth(Point point) {
return convertBaidu2Earth(point.getLat(),point.getLon());
}
/**
* 地球坐标转百度坐标
* @param earthLat
* @param earthLon
* @return
*/
public static Point convertEarth2Baidu(double earthLat, double earthLon) {
return convertMars2Baidu(convertEarth2Mars(earthLat, earthLon));
}
/**
* 地球坐标转百度坐标
* @param point
* @return
*/
public static Point convertEarth2Baidu(Point point) {
return convertEarth2Baidu(point.getLat(), point.getLon());
}
/**
* 图吧坐标转地球坐标
* @param point
* @return
*/
public static Point convertMapbar2Earth(Point point) {
return convertMapbar2Earth(point.getLat(), point.getLon());
}
/**
* 图吧坐标转地球坐标
* @param mapbarLat
* @param mapbarLon
* @return
*/
public static Point convertMapbar2Earth(double mapbarLat,double mapbarLon) {
double[] p = CoordinateConverter.mapBar2WGS84(mapbarLon, mapbarLat);
return new Point(p[1], p[0]);
}
/**
* 图吧坐标转火星坐标
* @param point
* @return
*/
public static Point convertMapbar2Mars(Point point) {
return convertMapbar2Mars(point.getLat(), point.getLon());
}
/**
* 图吧坐标转火星坐标
* @param mapbarLat
* @param mapbarLon
* @return
*/
public static Point convertMapbar2Mars(double mapbarLat,double mapbarLon) {
return convertEarth2Mars(convertMapbar2Earth(mapbarLat, mapbarLon));
}
/**
* 通用转换接口
* @param lat
* @param lon
* @param from
* @param to
* @return
*/
public static Point convertCoord(double lat, double lon,CoordType from,CoordType to){
Point result = new Point(lon,lat);
switch(from){
case BAIDU:{
switch(to){
case BAIDU:
break;
case EARTH:
result = convertBaidu2Earth(result);
break;
case MARS:
result = convertBaidu2Mars(result);
break;
case SOGOU:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
case MAPBAR:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
default:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
break;
}
case EARTH:{
switch(to){
case BAIDU:
result = convertEarth2Baidu(result);
break;
case EARTH:
break;
case MARS:
result = convertEarth2Mars(result);
break;
case SOGOU:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
case MAPBAR:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
default:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
break;
}
case MARS:{
switch(to){
case BAIDU:
result = convertMars2Baidu(result);
break;
case EARTH:
result = convertMars2Earth(result);
break;
case MARS:
break;
case SOGOU:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
case MAPBAR:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
default:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
break;
}
case SOGOU:{
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
case MAPBAR:{
switch(to){
case BAIDU:
break;
case EARTH:
result = convertMapbar2Earth(result);
break;
case MARS:
result = convertMapbar2Mars(result);
break;
case SOGOU:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
case MAPBAR:
break;
default:
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
break;
}
default:{
throw new UnsupportedOperationException("Convert From " + from+ " To " + to);
}
}
return result;
}
/**
* 通用转换接口
* @param point
* @param from
* @param to
* @return
*/
public static Point convertCoord(Point point,CoordType from,CoordType to){
return convertCoord(point.getLat(), point.getLon(), from, to);
}
// -----------------------------------------------------------------------
// -------转换坐标 结束-----------------------------------------------------
}
package learn.zhujl.geo.util;
/**
* 坐标转换程序
*
* WGS84坐标系：即地球坐标系，国际上通用的坐标系。Earth
GCJ02坐标系：即火星坐标系，WGS84坐标系经加密后的坐标系。Mars
BD09坐标系：即百度坐标系，GCJ02坐标系经加密后的坐标系。 Bd09
搜狗坐标系、图吧坐标系等，估计也是在GCJ02基础上加密而成的。
*
* 百度地图API 百度坐标
腾讯搜搜地图API 火星坐标
搜狐搜狗地图API 搜狗坐标*
阿里云地图API 火星坐标
图吧MapBar地图API 图吧坐标
高德MapABC地图API 火星坐标
灵图51ditu地图API 火星坐标
*
* @author fankun
*
*/
class CoordinateConverter {
public final static double PI = Math.PI;
public final static double AXIS = 6378245.0; //
private final static double OFFSET = 0.00669342162296594323; // (a^2 - b^2) / a^2
private final static double X_PI = PI * 3000.0 / 180.0;
// GCJ-02=>BD09 火星坐标系=>百度坐标系
public static double[] gcj2BD09(double glat, double glon) {
double x = glon;
double y = glat;
double[] latlon = new double[2];
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);
latlon[0] = z * Math.sin(theta) + 0.006;
latlon[1] = z * Math.cos(theta) + 0.0065;
return latlon;
}
// BD09=>GCJ-02 百度坐标系=>火星坐标系
public static double[] bd092GCJ(double glat, double glon) {
double x = glon - 0.0065;
double y = glat - 0.006;
double[] latlon = new double[2];
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);
latlon[0] = z * Math.sin(theta);
latlon[1] = z * Math.cos(theta);
return latlon;
}
// BD09=>WGS84 百度坐标系=>地球坐标系
public static double[] bd092WGS(double glat, double glon) {
double[] latlon = bd092GCJ(glat, glon);
return gcj2WGS(latlon[0], latlon[1]);
}
// WGS84=》BD09 地球坐标系=>百度坐标系
public static double[] wgs2BD09(double wgLat, double wgLon) {
double[] latlon = wgs2GCJ(wgLat, wgLon);
return gcj2BD09(latlon[0], latlon[1]);
}
// WGS84=》GCJ02 地球坐标系=>火星坐标系
public static double[] wgs2GCJ(double wgLat, double wgLon) {
double[] latlon = new double[2];
if (outOfChina(wgLat, wgLon)) {
latlon[0] = wgLat;
latlon[1] = wgLon;
return latlon;
}
double[] deltaD = delta(wgLat, wgLon);
latlon[0] = wgLat + deltaD[0];
latlon[1] = wgLon + deltaD[1];
return latlon;
}
// GCJ02=>WGS84 火星坐标系=>地球坐标系(粗略)
public static double[] gcj2WGS(double glat, double glon) {
double[] latlon = new double[2];
if (outOfChina(glat, glon)) {
latlon[0] = glat;
latlon[1] = glon;
return latlon;
}
double[] deltaD = delta(glat, glon);
latlon[0] = glat - deltaD[0];
latlon[1] = glon - deltaD[1];
return latlon;
}
// GCJ02=>WGS84 火星坐标系=>地球坐标系（精确）
public static double[] gcj2WGSExactly(double gcjLat, double gcjLon) {
double initDelta = 0.01;
double threshold = 0.000000001;
double dLat = initDelta, dLon = initDelta;
double mLat = gcjLat - dLat, mLon = gcjLon - dLon;
double pLat = gcjLat + dLat, pLon = gcjLon + dLon;
double wgsLat, wgsLon, i = 0;
while (true) {
wgsLat = (mLat + pLat) / 2;
wgsLon = (mLon + pLon) / 2;
double[] tmp = wgs2GCJ(wgsLat, wgsLon);
dLat = tmp[0] - gcjLat;
dLon = tmp[1] - gcjLon;
if ((Math.abs(dLat) < threshold) && (Math.abs(dLon) < threshold)) break;
if (dLat > 0) pLat = wgsLat;
else mLat = wgsLat;
if (dLon > 0) pLon = wgsLon;
else mLon = wgsLon;
if (++i > 10000) break;
}
double[] latlon = new double[2];
latlon[0] = wgsLat;
latlon[1] = wgsLon;
return latlon;
}
// 两点距离
public static double distance(double latA, double logA, double latB, double logB) {
int earthR = 6371000;
double x = Math.cos(latA * Math.PI / 180) * Math.cos(latB * Math.PI / 180) * Math.cos((logA - logB) * Math.PI / 180);
double y = Math.sin(latA * Math.PI / 180) * Math.sin(latB * Math.PI / 180);
double s = x + y;
if (s > 1) s = 1;
if (s < -1) s = -1;
double alpha = Math.acos(s);
double distance = alpha * earthR;
return distance;
}
public static double[] delta(double wgLat, double wgLon) {
double[] latlng = new double[2];
double dLat = transformLat(wgLon - 105.0, wgLat - 35.0);
double dLon = transformLon(wgLon - 105.0, wgLat - 35.0);
double radLat = wgLat / 180.0 * PI;
double magic = Math.sin(radLat);
magic = 1 - OFFSET * magic * magic;
double sqrtMagic = Math.sqrt(magic);
dLat = (dLat * 180.0) / ((AXIS * (1 - OFFSET)) / (magic * sqrtMagic) * PI);
dLon = (dLon * 180.0) / (AXIS / sqrtMagic * Math.cos(radLat) * PI);
latlng[0] = dLat;
latlng[1] = dLon;
return latlng;
}
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 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;
}
//mapbar ==> wgs84 图吧坐标转地球坐标
public static double[] mapBar2WGS84(double mapbarLon, double mapbarLat) {
mapbarLon = (double) (mapbarLon) * 100000 % 36000000;
mapbarLat = (double) (mapbarLat) * 100000 % 36000000;
double x1 = (double) (long) (-(((Math.cos(mapbarLat / 100000)) * (mapbarLon / 18000)) + ((Math.sin(mapbarLon / 100000)) * (mapbarLat / 9000))) + mapbarLon);
double y1 = (double) (long) (-(((Math.sin(mapbarLat / 100000)) * (mapbarLon / 18000)) + ((Math.cos(mapbarLon / 100000)) * (mapbarLat / 9000))) + mapbarLat);
long x2 = (long) (-(((Math.cos(y1 / 100000)) * (x1 / 18000)) + ((Math.sin(x1 / 100000)) * (y1 / 9000))) + mapbarLon + ((mapbarLon > 0) ? 1 : -1));
long y2 = (long) (-(((Math.sin(y1 / 100000)) * (x1 / 18000)) + ((Math.cos(x1 / 100000)) * (y1 / 9000))) + mapbarLat + ((mapbarLat > 0) ? 1 : -1));
double[] latlon = new double[2];
latlon[0] = y2 / 100000.0;//维度
latlon[1] = x2 / 100000.0;//经度
return latlon;
}
}
package learn.zhujl.geo.util;
/**
* 类CoordType.java的实现描述：坐标类型
*
* @author JianLin.Zhu 2015-9-22 下午7:26:36
*/
public enum CoordType {
/**WGS-84 支持厂商:苹果**/
EARTH("EARTH", "地球坐标"),
/**GCJ-02 支持厂商:谷歌、高德**/
MARS("MARS", "火星坐标"),
/**BD-09 支持厂商:百度**/
BAIDU("BAIDU", "百度坐标"),
/**搜狗 支持厂商：搜狗 http://map.sogou.com/api/**/
SOGOU("SOGOU", "搜狗坐标"),
/**图吧 支持厂商：图吧 http://open.mapbar.com/**/
MAPBAR("MAPBAR", "搜狗坐标");
private String name;
private String remark;
private CoordType(String name, String remark){
this.name = name;
this.remark = remark;
}
public static CoordType codeOf(String name) {
for (CoordType s : CoordType.values()) {
if (equalsIgnoreCase(s.getName(), name)) {
return s;
}
}
return null;
}
private static boolean equalsIgnoreCase(String str1, String str2)
{
return str1 != null ? str1.equalsIgnoreCase(str2) : str2 == null;
}
public String getName() {
return name;
}
public String getRemark() {
return remark;
}
@Override
public String toString() {
return name;
}
public static void main(String[] args){
System.out.println(CoordType.MARS.equals(CoordType.codeOf("Mars")));
System.out.println(CoordType.MARS.equals(CoordType.codeOf("EARTH")));
System.out.println(CoordType.SOGOU.equals(CoordType.codeOf("SOGOU")));
System.out.println(CoordType.MAPBAR.equals(CoordType.codeOf("MAPBAR")));
System.out.println(CoordType.codeOf("BAIDU"));
System.out.println(CoordType.codeOf("mars"));
System.out.println(CoordType.codeOf("sogou"));
System.out.println(CoordType.codeOf("MAPBAr"));
System.out.println(CoordType.codeOf(""));
System.out.println(CoordType.codeOf(null));
}
}
package learn.zhujl.geo.util;
/**
* 类Point.java的实现描述：地理坐标点
* @author JianLin.Zhu 2015-10-15 下午3:20:36
*/
public class Point {
public Point() {
}
/**
* 构造函数
* @param lon 经度
* @param lat 纬度
*/
public Point(double lon, double lat) {
super();
this.lon = lon;
this.lat = lat;
}
private double lon;
private double lat;
public double getLon() {
return lon;
}
public void setLon(double lon) {
this.lon = lon;
}
public double getLat() {
return lat;
}
public void setLat(double lat) {
this.lat = lat;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
long temp;
temp = Double.doubleToLongBits(lat);
result = prime * result + (int) (temp ^ (temp >>> 32));
temp = Double.doubleToLongBits(lon);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Point other = (Point) obj;
if (Double.doubleToLongBits(lat) != Double.doubleToLongBits(other.lat))
return false;
if (Double.doubleToLongBits(lon) != Double.doubleToLongBits(other.lon))
return false;
return true;
}
@Override
public String toString() {
return "Point [lon=" + lon + ", lat=" + lat + "]";
}
}
package learn.zhujl.geo.util;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class GeoUtilTest {
private Point[] points = null;
@Before
public void setup(){
Point[] points = new Point[]{
new Point(120.09548709, 30.26973828),
new Point(120.09549138774209, 30.269738408839036),
new Point(120.09443281, 30.19282078),
new Point(120.19974387, 30.28998107),
new Point(120.19109, 30.28086),
};
this.points =points;
}
@Test
public void testEartchAndMarsCoordConverter() {
for(Point src : points){
Point target = GeoUtil.convertEarth2Mars(src);
Point src_ = GeoUtil.convertMars2Earth(target);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println("testEartchAndMarsCoordConverter 误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
}
@Test
public void testEarthAndBaiduCoordConverter() {
for(Point src : points){
Point target = GeoUtil.convertEarth2Baidu(src);
Point src_ = GeoUtil.convertBaidu2Earth(target);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println("testEarthAndBaiduCoordConverter 误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
}
@Test
public void testMarsAndBaiduCoordConverter() {
for(Point src : points){
Point target = GeoUtil.convertMars2Baidu(src);
Point src_ = GeoUtil.convertBaidu2Mars(target);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println("testMarsAndBaiduCoordConverter 误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
}
@Test
public void testConvertCoord(){
for(Point src : points){
Point target = GeoUtil.convertCoord(src, CoordType.MARS, CoordType.BAIDU);
Point src_ = GeoUtil.convertCoord(target, CoordType.BAIDU, CoordType.MARS);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println(CoordType.MARS+" & "+CoordType.BAIDU+"误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
for(Point src : points){
Point target = GeoUtil.convertCoord(src, CoordType.MARS, CoordType.EARTH);
Point src_ = GeoUtil.convertCoord(target, CoordType.EARTH, CoordType.MARS);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println(CoordType.EARTH+" & "+CoordType.MARS+"误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
for(Point src : points){
Point target = GeoUtil.convertCoord(src, CoordType.EARTH, CoordType.BAIDU);
Point src_ = GeoUtil.convertCoord(target, CoordType.BAIDU, CoordType.EARTH);
double wucha = GeoUtil.getDistance(src.getLat(), src.getLon(), src_.getLat(), src_.getLon());
System.out.println(CoordType.EARTH+" & "+CoordType.BAIDU +"误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
}
@Test
public void testMapbar2Earth(){
Point src = new Point(108.98258,34.27071);
Point expected = new Point(108.98525, 34.27116);
Point target = GeoUtil.convertCoord(src, CoordType.MAPBAR, CoordType.EARTH);
double wucha = GeoUtil.getDistance(expected.getLat(), expected.getLon(), target.getLat(), target.getLon());
System.out.println("testMapbar2Earth误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
@Test
public void testMapbar2Mars(){
Point src = new Point(108.98258,34.27071);
Point target = GeoUtil.convertCoord(src, CoordType.MAPBAR, CoordType.MARS);
Point expectedMars = new Point(108.99006153253407,34.26968285889569);
double wucha = GeoUtil.getDistance(expectedMars.getLat(), expectedMars.getLon(), target.getLat(), target.getLon());
System.out.println("MAPBAR误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
@Test
public void testMapbar2Earth2Mars(){
Point src = new Point(108.98258,34.27071);
Point expected = new Point(108.98525, 34.27116);
double[] points = CoordinateConverter.mapBar2WGS84(src.getLon(),src.getLat());//[108.98525, 34.27116]108.9842,34.26609 108.9842,34.26609
System.out.println("wgs="+points[0]+","+points[1]);
double wucha = GeoUtil.getDistance(points[0], points[1], expected.getLat(), expected.getLon());
System.out.println("MAPBAR误差="+wucha);
Assert.assertTrue(wucha<1.00);
Point mars = GeoUtil.convertCoord(new Point(points[1],points[0]), CoordType.EARTH, CoordType.MARS);
System.out.println("mars="+mars.getLon()+","+mars.getLat());
Point expectedMars = new Point(108.99006153253407,34.26968285889569);
wucha = GeoUtil.getDistance(expectedMars.getLat(), expectedMars.getLon(), mars.getLat(), mars.getLon());
System.out.println("MAPBAR误差="+wucha);
Assert.assertTrue(wucha<1.00);
}
}
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