业务:比较微信小程序定位是否在系统设置的某个位置的某个范围内
问题:微信小程序的定位是拿的腾讯地图的经纬度(假设为点A),系统设置的某个位置是百度地图的经纬度(假设为点B),需要判断点A是否在点B的Range(米)范围内
解决方案:将腾讯点A的经纬度转换为百度地图的经纬度后再进行比较
package com.applets.manager.core.util;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.geotools.referencing.GeodeticCalculator;/*** @author zr 2024/5/11*/
@Slf4j
public class GeoUtil {/*** 判断一个点是否在某个圆形范围内(startingPoint为腾讯地图点位,endPoint为百度地图点位)* @param startingPoint* @param endPoint* @param range* @return转换*/public static boolean inDistanceWithConversion(MyPoint startingPoint , MyPoint endPoint , Integer range){MyPoint myPoint = qqMapTransBMap(startingPoint);return inDistance(myPoint,endPoint,range);}/*** 判断一个点是否在某个圆形范围内* @param startingPoint* @param endPoint* @param Range* @return*/public static boolean inDistance(MyPoint startingPoint , MyPoint endPoint , Integer Range) {// 84坐标系构造GeodeticCalculatorGeodeticCalculator geodeticCalculator = new GeodeticCalculator();// 起点经纬度geodeticCalculator.setStartingGeographicPoint(startingPoint.getLongitude(), startingPoint.getLatitude());// 末点经纬度geodeticCalculator.setDestinationGeographicPoint( endPoint.getLatitude(),endPoint.getLongitude());// 计算距离，单位：米double orthodromicDistance = geodeticCalculator.getOrthodromicDistance();if (orthodromicDistance < Range){return true;}else {return false;}}/*** 腾讯地图经纬度转百度地图经纬度* @param myPoint* @return*/public static MyPoint qqMapTransBMap(MyPoint myPoint) {double x_pi = 3.14159265358979324 * 3000.0 / 180.0;double x = myPoint.getLatitude();double y = myPoint.getLongitude();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 lngs = z * Math.cos(theta) + 0.0065;double lats = z * Math.sin(theta) + 0.006;return new MyPoint(lngs, lats);}@Data@AllArgsConstructor@NoArgsConstructorpublic static class MyPoint {public double longitude;public double latitude;}
}
