根据经纬度计算符合一定距离条件的坐标

1.导入依赖

      <dependency>
            <groupId>org.geotools</groupId>
            <artifactId>gt-main</artifactId>
            <version>28.3</version>
        </dependency>

2.编写工具类

package org.jmis.riskassess.util;

import lombok.Data;
import org.geotools.geometry.jts.JTSFactoryFinder;
import org.geotools.referencing.GeodeticCalculator;
import org.locationtech.jts.geom.Coordinate;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.Point;

import java.awt.geom.Point2D;
import java.util.ArrayList;
import java.util.List;
@Data
public class MineLocator {
	private GeometryFactory geometryFactory;
	private List<Mine> mines;

	public MineLocator(List<Mine> mines) {
		this.mines = mines;
		this.geometryFactory = JTSFactoryFinder.getGeometryFactory();
	}
	@Data
	public static class Mine {
		private String name;
		private double longitude;
		private double latitude;
		private String leader;
		private String isBlast;
		private String isRoofFall;
		private String isEffect;
		private String other;
		private String acceptAlarmPerson;
		private String acceptAlarmTime;

		public Mine(String name, Double longitude, Double latitude, String leader, String isBlast, String isRoofFall, String isEffect, String other, String acceptAlarmPerson, String acceptAlarmTime) {
			this.name = name;
			this.longitude = longitude;
			this.latitude = latitude;
			this.leader = leader;
			this.isBlast = isBlast;
			this.isRoofFall = isRoofFall;
			this.other = other;
			this.acceptAlarmPerson = acceptAlarmPerson;
			this.acceptAlarmTime = acceptAlarmTime;
			this.isEffect = isEffect;
		}

	}

	// 获取方圆范围内的矿名称和坐标
	public List<Mine> getMinesInRadius(Point center, double radius) {
		List<Mine> minesInRadius = new ArrayList<>();

		// 计算方圆范围的几何对象
		GeodeticCalculator calculator = new GeodeticCalculator();
		calculator.setStartingGeographicPoint(center.getX(), center.getY());
		calculator.setDirection(0, radius); // 方向为0度，距离为给定半径
		Coordinate[] coordinates = new Coordinate[33];
		for (int i = 0; i < 33; i++) {
			double azimuth = i * 360.0 / 32.0;
			calculator.setDirection(azimuth, radius);
			Point2D result = calculator.getDestinationGeographicPoint();
			coordinates[i] = new Coordinate(result.getX(), result.getY());
		}
		Geometry circle = geometryFactory.createPolygon(coordinates);

		// 查找方圆范围内的矿名称和坐标
		for (Mine mine : mines) {
			Point minePoint = geometryFactory.createPoint(new Coordinate(mine.getLongitude(), mine.getLatitude()));
			if (circle.contains(minePoint)) {
				minesInRadius.add(mine);
			}
		}

		return minesInRadius;
	}
}