From 04dba6a17f836b5fbdf0eedff8a129c6785fd8a2 Mon Sep 17 00:00:00 2001
From: k94314517 <8417338+k94314517@user.noreply.gitee.com>
Date: 星期五, 28 二月 2025 18:25:00 +0800
Subject: [PATCH] 111

---
 server/services/src/main/java/com/doumee/core/utils/PositionUtil.java |  128 ++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 128 insertions(+), 0 deletions(-)

diff --git a/server/services/src/main/java/com/doumee/core/utils/PositionUtil.java b/server/services/src/main/java/com/doumee/core/utils/PositionUtil.java
index fdd1f5f..bbfeaba 100644
--- a/server/services/src/main/java/com/doumee/core/utils/PositionUtil.java
+++ b/server/services/src/main/java/com/doumee/core/utils/PositionUtil.java
@@ -2,6 +2,7 @@
 
 
 import com.alibaba.fastjson.JSONObject;
+import com.alibaba.fastjson.TypeReference;
 import com.doumee.dao.business.web.request.LocaltionDTO;
 
 import java.awt.geom.GeneralPath;
@@ -13,6 +14,7 @@
  * 璁$畻璺濈
  */
 public class PositionUtil {
+
     public static String getTxMapAddrByLatAndLng(Double lat,Double lng,String host,String mapkey){
         try {
             if(lat == null || lng ==null){
@@ -38,6 +40,132 @@
         return null;
     }
     /**
+     * 妞悆鍙傛暟
+     */
+    private static double pi = 3.14159265358979324;
+    /**
+     * 鍗槦妞悆鍧愭爣鎶曞奖鍒板钩闈㈠湴鍥惧潗鏍囩郴鐨勬姇褰卞洜瀛�
+     */
+    private static double a = 6378245.0;
+    /**
+     * 妞悆鐨勫亸蹇冪巼
+     */
+    private static double ee = 0.00669342162296594323;
+
+    /**
+     * 缁忕含搴� GPS杞珮寰�
+     *
+     * @param wgLon GPS缁忓害
+     * @param wgLat GPS缁村害
+     * @return 杞寲鍚庣殑缁忕含搴﹀潗鏍�
+     */
+    public static AMap transform(double wgLon, double wgLat) {
+        if (outOfChina(wgLat, wgLon)) {
+            return new AMap(wgLon, wgLat);
+        }
+
+        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 - 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 transLat = wgLat + dLat;
+        double transLon = wgLon + dLon;
+        return new AMap(transLon, transLat);
+    }
+
+    /**
+     * 鍒ゆ柇鏄惁涓哄浗澶栧潗鏍囷紝锛屼笉鍦ㄥ浗鍐呬笉鍋氬亸绉�
+     *
+     * @param lat
+     * @param lon
+     * @return
+     */
+    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;
+    }
+
+    /**
+     * 绾害杞崲
+     *
+     * @param x
+     * @param y
+     * @return
+     */
+    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;
+    }
+
+    /**
+     * 缁忓害杞崲
+     *
+     * @param x
+     * @param y
+     * @return
+     */
+    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;
+    }
+
+    /**
+     * 楂樺痉缁忕含搴︾被
+     */
+    public static class AMap {
+        /**
+         * 缁忓害
+         */
+        private double longitude;
+
+        /**
+         * 缁村害
+         */
+        private double latitude;
+
+        public AMap(double longitude, double latitude) {
+            this.longitude = longitude;
+            this.latitude = latitude;
+        }
+
+        public double getLongitude() {
+            return longitude;
+        }
+
+        public double getLatitude() {
+            return latitude;
+        }
+    }
+    public static void main(String[] args) {
+        String str ="[{\"lat\":31.732726766273103,\"lng\":117.37721605116087,\"height\":0},{\"lat\":31.72079687406289,\"lng\":117.39831914258241,\"height\":0},{\"lat\":31.714484720597493,\"lng\":117.39831914258241,\"height\":0},{\"lat\":31.71233192243245,\"lng\":117.39583137996954,\"height\":0},{\"lat\":31.71401037878662,\"lng\":117.3785457182995,\"height\":0}]";
+        TypeReference typeReference =  new TypeReference<List<LocaltionDTO>>(){};
+        List<LocaltionDTO> array = JSONObject.parseObject(str, typeReference.getType());
+        if(array == null || array.size() ==0){
+           System.out.println("=================");
+        }
+        System.out.println(isInPolygon(  117.39387876,31.71365546,array));
+//        AMap aMap = transform( 117.38823300,  31.71550000);
+//        System.out.println(aMap.getLatitude()+""+aMap.getLongitude());
+//        System.out.println(isInPolygon(  aMap.getLongitude(),aMap.getLatitude(),array));
+    }
+   /* "latitude": 31.71553300,
+            "longitude": 117.39,
+117.393962,31.713690
+            31.71550000	117.38823300
+   */ /**
      * 鍒ゆ柇鍧愭爣鐐规槸鍚﹀湪澶氳竟褰㈠尯鍩熷唴
      *
      * @param pointLon 瑕佸垽鏂殑鐐圭殑缁忓害

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