坐标转换工具

epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/dto/LocateInfo.java

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+package com.elink.esua.epdc.commons.tools.dto;
+
+/**
+ * Created by wangmh on 2018/2/7.
+ * 定位的几个基本信息
+ */
+
+public class LocateInfo {
+    private double longitude;
+    private double Latitude;
+    private boolean isChina;
+
+    public LocateInfo() {
+
+    }
+
+    public LocateInfo(double longitude, double latitude) {
+        this.longitude = longitude;
+        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) {
+        Latitude = latitude;
+    }
+
+    public boolean isChina() {
+        return isChina;
+    }
+
+    public void setChina(boolean china) {
+        isChina = china;
+    }
+}
+

epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/GCJ02_WGS84.java

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+package com.elink.esua.epdc.commons.tools.utils;
+
+import com.alibaba.fastjson.JSON;
+import com.elink.esua.epdc.commons.tools.dto.LocateInfo;
+
+/**
+ * @Description
+ * @Author yzm
+ * @Date 2023/6/2 11:03
+ */
+public class GCJ02_WGS84 {
+
+    public static double pi = 3.1415926535897932384626;
+    public static double a = 6378245.0;
+    public static double ee = 0.00669342162296594323;
+
+    public static LocateInfo wgs84_To_Gcj02(double lat, double lon) {
+        LocateInfo info = new LocateInfo();
+        if (outOfChina(lat, lon)) {
+            info.setChina(false);
+            info.setLatitude(lat);
+            info.setLongitude(lon);
+        }else {
+            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);
+            double mgLat = lat + dLat;
+            double mgLon = lon + dLon;
+            info.setChina(true);
+            info.setLatitude(mgLat);
+            info.setLongitude(mgLon);
+        }
+        return info;
+    }
+
+    public static LocateInfo gcj02_To_Wgs84(double lat, double lon) {
+        LocateInfo info = new LocateInfo();
+        LocateInfo gps = transform(lat, lon);
+        double lontitude = lon * 2 - gps.getLongitude();
+        double latitude = lat * 2 - gps.getLatitude();
+        info.setChina(gps.isChina());
+        info.setLatitude(latitude);
+        info.setLongitude(lontitude);
+        return info;
+    }
+
+    private 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;
+    }
+
+    private 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;
+    }
+
+    private 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;
+    }
+
+    private static LocateInfo transform(double lat, double lon) {
+        LocateInfo info = new LocateInfo();
+        if (outOfChina(lat, lon)) {
+            info.setChina(false);
+            info.setLatitude(lat);
+            info.setLongitude(lon);
+            return info;
+        }
+        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);
+        double mgLat = lat + dLat;
+        double mgLon = lon + dLon;
+        info.setChina(true);
+        info.setLatitude(mgLat);
+        info.setLongitude(mgLon);
+
+        return info;
+    }
+
+    public static void main(String[] args) {
+        // 纬度
+        double lat=36.1241380000;
+        // 经度
+        double lon=120.4004700000;
+        LocateInfo locateInfo=gcj02_To_Wgs84(lat,lon);
+        System.out.println(JSON.toJSONString(locateInfo));
+    }
+}