电子围栏
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@ -39,16 +39,13 @@ public class ZcElectronicFence extends BaseEntity
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/** 删除标志(0代表存在 2代表删除) */
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private String delFlag;
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/** */
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@Excel(name = "")
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private String extend1;
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/** */
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@Excel(name = "")
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private String extend2;
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/** */
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@Excel(name = "")
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private String extend3;
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@Transient
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@ -0,0 +1,97 @@
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package com.ruoyi.operation.util;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* @Description TODO
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* @Author maj
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* @Date 2025/10/14 16:09
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*/
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public class CoordinateConverter {
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private static final double PI = 3.14159265358979324;
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private static final double A = 6378245.0;
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private static final double EE = 0.00669342162296594323;
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/**
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* GCJ-02 转 WGS-84
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*/
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public static Map<String, Double> gcj02ToWgs84(double lng, double lat) {
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if (outOfChina(lng, lat)) {
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return createResult(lng, lat);
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}
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double[] delta = transform(lng, lat);
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double mgLat = lat + delta[0];
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double mgLng = lng + delta[1];
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// 迭代计算
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double newLat = lat * 2 - mgLat;
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double newLng = lng * 2 - mgLng;
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return createResult(newLng, newLat);
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}
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/**
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* 判断坐标是否在中国范围内
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*/
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private static boolean outOfChina(double lng, double lat) {
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return lng < 72.004 || lng > 137.8347 || lat < 0.8293 || lat > 55.8271;
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}
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/**
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* 转换计算
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*/
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private static double[] transform(double lng, double lat) {
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double dLat = transformLat(lng - 105.0, lat - 35.0);
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double dLng = transformLng(lng - 105.0, lat - 35.0);
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double radLat = lat / 180.0 * PI;
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double magic = Math.sin(radLat);
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magic = 1 - EE * magic * magic;
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double sqrtMagic = Math.sqrt(magic);
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dLat = (dLat * 180.0) / ((A * (1 - EE)) / (magic * sqrtMagic) * PI);
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dLng = (dLng * 180.0) / (A / sqrtMagic * Math.cos(radLat) * PI);
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return new double[]{dLat, dLng};
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}
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private static double transformLat(double x, double y) {
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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));
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ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(y * PI) + 40.0 * Math.sin(y / 3.0 * PI)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(y / 12.0 * PI) + 320 * Math.sin(y * PI / 30.0)) * 2.0 / 3.0;
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return ret;
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}
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private static double transformLng(double x, double y) {
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double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
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ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(x * PI) + 40.0 * Math.sin(x / 3.0 * PI)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(x / 12.0 * PI) + 300.0 * Math.sin(x / 30.0 * PI)) * 2.0 / 3.0;
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return ret;
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}
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private static Map<String, Double> createResult(double lng, double lat) {
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Map<String, Double> result = new HashMap<>();
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result.put("lng", lng);
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result.put("lat", lat);
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return result;
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}
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// 使用示例
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public static void main(String[] args) {
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// 腾讯地图坐标
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double txLng = 116.397428;
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double txLat = 39.90923;
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// 转换为WGS84
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Map<String, Double> wgs84Coord = gcj02ToWgs84(txLng, txLat);
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System.out.println("腾讯坐标: " + txLng + ", " + txLat);
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System.out.printf("WGS84坐标: %.6f, %.6f%n",
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wgs84Coord.get("lng"), wgs84Coord.get("lat"));
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}
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}
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