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https://github.com/chillzhuang/blade-tool
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✨ 条件 geo 坐标转换
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package org.springblade.core.tool.geo;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import java.io.Serial;
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import java.io.Serializable;
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/**
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* 坐标点
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*
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* @author JourWon、hutool、L.cm
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*/
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@Data
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@NoArgsConstructor
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@AllArgsConstructor
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public class GeoPoint implements Serializable {
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@Serial
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private static final long serialVersionUID = 3584864663880053897L;
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/**
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* 经度
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*/
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private double lon;
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/**
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* 纬度
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*/
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private double lat;
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/**
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* 当前坐标偏移指定坐标
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*
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* @param offset 偏移量
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* @return this
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*/
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public GeoPoint offset(GeoPoint offset) {
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this.lon += offset.lon;
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this.lat += offset.lat;
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return this;
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}
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}
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/**
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* Copyright (c) 2018-2028, DreamLu 卢春梦 (qq596392912@gmail.com).
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* <p>
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* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* <p>
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* http://www.gnu.org/licenses/lgpl.html
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* <p>
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springblade.core.tool.geo;
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import lombok.Getter;
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import lombok.RequiredArgsConstructor;
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/**
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* 各坐标系之间的转换工具类
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* <p>
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* 参考：<a href="https://github.com/JourWon/coordinate-transform">coordinate-transform</a>
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* <p>
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* WGS84坐标系：即地球坐标系，国际上通用的坐标系。设备一般包含GPS芯片或者北斗芯片获取的经纬度为WGS84地理坐标系。
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* 谷歌地图采用的是WGS84地理坐标系（中国范围除外,谷歌中国地图采用的是GCJ02地理坐标系。)
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* <p>
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* GCJ02坐标系：即火星坐标系，WGS84坐标系经加密后的坐标系。
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* 出于国家安全考虑，国内所有导航电子地图必须使用国家测绘局制定的加密坐标系统，即将一个真实的经纬度坐标加密成一个不正确的经纬度坐标。
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* <p>
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* BD09坐标系：即百度坐标系，GCJ02坐标系经加密后的坐标系。搜狗坐标系、图吧坐标系等，估计也是在GCJ02基础上加密而成的。
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* <p>
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* 高德MapABC地图API 火星坐标
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* 腾讯搜搜地图API 火星坐标
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* 阿里云地图API 火星坐标
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* 灵图51ditu地图API 火星坐标
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* <p>
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* 百度地图API 百度坐标
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* 搜狐搜狗地图API 搜狗坐标
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* 图吧MapBar地图API 图吧坐标
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*
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* @author JourWon、hutool、L.cm
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*/
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@Getter
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@RequiredArgsConstructor
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public enum GeoType {
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/**
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* WGS84
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*/
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WGS84("WGS84", "地球坐标系，国际通用坐标系") {
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@Override
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public GeoPoint toWGS84(double lon, double lat) {
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return new GeoPoint(lon, lat);
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}
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@Override
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public GeoPoint toGCJ02(double lon, double lat) {
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return GeoUtil.wgs84ToGcj02(lon, lat);
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}
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@Override
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public GeoPoint toBD09(double lon, double lat) {
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return GeoUtil.wgs84ToBd09(lon, lat);
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}
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},
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GCJ02("GCJ02", "火星坐标系，高德、腾讯、阿里等使用") {
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@Override
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public GeoPoint toWGS84(double lon, double lat) {
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return GeoUtil.gcj02ToWgs84(lon, lat);
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}
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@Override
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public GeoPoint toGCJ02(double lon, double lat) {
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return new GeoPoint(lon, lat);
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}
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@Override
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public GeoPoint toBD09(double lon, double lat) {
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return GeoUtil.gcj02ToBd09(lon, lat);
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}
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},
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BD09("BD09", "百度坐标系，百度、搜狗等使用") {
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@Override
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public GeoPoint toWGS84(double lon, double lat) {
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return GeoUtil.bd09toWgs84(lon, lat);
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}
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@Override
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public GeoPoint toGCJ02(double lon, double lat) {
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return GeoUtil.bd09ToGcj02(lon, lat);
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}
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@Override
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public GeoPoint toBD09(double lon, double lat) {
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return new GeoPoint(lon, lat);
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}
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};
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private final String type;
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private final String desc;
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/**
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* 转换成 地球坐标系
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*
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* @param lon lon
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* @param lat lat
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* @return GeoPoint
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*/
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public abstract GeoPoint toWGS84(double lon, double lat);
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/**
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* 转换成 火星坐标系
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*
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* @param lon lon
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* @param lat lat
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* @return GeoPoint
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*/
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public abstract GeoPoint toGCJ02(double lon, double lat);
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/**
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* 转换成 百度坐标系
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*
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* @param lon lon
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* @param lat lat
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* @return GeoPoint
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*/
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public abstract GeoPoint toBD09(double lon, double lat);
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}
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package org.springblade.core.tool.geo;
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import java.text.DecimalFormat;
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/**
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* 位置工具类
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*
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* @author JourWon、hutool、L.cm
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*/
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public class GeoUtil {
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/**
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* 地球的半径 (m)
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*/
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public static final double EARTH_RADIUS = 6378137;
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/**
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* 圆周率π
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*/
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private static final double PI = 3.1415926535897932384626D;
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/**
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* 火星坐标系与百度坐标系转换的中间量
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*/
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private static final double X_PI = 3.14159265358979324 * 3000.0 / 180.0D;
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/**
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* 地球半径（Krasovsky 1940）
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*/
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public static final double RADIUS = 6378245.0D;
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/**
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* 修正参数（偏率ee）
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*/
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public static final double CORRECTION_PARAM = 0.00669342162296594323D;
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/**
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* 经纬度格式化为字符串
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*/
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public static final DecimalFormat FORMAT = new DecimalFormat("#.########");
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/**
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* 根据经纬度计算两点之间的距离 (m)
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*
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* @param lon1 位置 1 的经度
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* @param lat1 位置 1 的纬度
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* @param lon2 位置 2 的经度
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* @param lat2 位置 2 的纬度
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* @return 返回距离
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*/
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public static double getDistance(double lon1, double lat1, double lon2, double lat2) {
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double radLat1 = radian(lat1);
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double radLat2 = radian(lat2);
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double a = radLat1 - radLat2;
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double b = radian(lon1) - radian(lon2);
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return (2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2)
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+ Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2))))
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* EARTH_RADIUS;
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}
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/**
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* 将整数形式的经纬度转换为十进制度格式，因为部分设备采集上来的为十进制形式的坐标
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*
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* @param coordinate 整数形式的经度或纬度
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* @return 十进制度格式的经纬度
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*/
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public static double getGpsValue(int coordinate) {
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int degrees = coordinate / (3600 * 100);
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int remainder = coordinate % (3600 * 100);
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int minutes = remainder / (60 * 100);
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remainder = remainder % (60 * 100);
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double seconds = remainder / 100.0;
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// 将分和秒转换为度的小数部分
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return degrees + (minutes / 60.0) + (seconds / 3600.0);
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}
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/**
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* 格式化经纬度
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*
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* @param value value
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* @return 格式化经纬度
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*/
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public static String formatGeo(double value) {
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return FORMAT.format(value);
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}
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/**
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* 判断坐标是否在国外<br>
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* 火星坐标系 (GCJ-02)只对国内有效，国外无需转换
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*
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* @param lng 经度
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* @param lat 纬度
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* @return 坐标是否在国外
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*/
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public static boolean isOutOfChina(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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* WGS84 转换为 火星坐标系 (GCJ-02)
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return 火星坐标 (GCJ-02)
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*/
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public static GeoPoint wgs84ToGcj02(double lon, double lat) {
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return new GeoPoint(lon, lat).offset(offset(lon, lat, true));
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}
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/**
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* WGS84 坐标转为 百度坐标系 (BD-09) 坐标
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return bd09 坐标
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*/
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public static GeoPoint wgs84ToBd09(double lon, double lat) {
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final GeoPoint gcj02 = wgs84ToGcj02(lon, lat);
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return gcj02ToBd09(gcj02.getLon(), gcj02.getLat());
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}
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/**
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* 火星坐标系 (GCJ-02) 转换为 WGS84
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*
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* @param lon 经度坐标
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* @param lat 纬度坐标
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* @return WGS84 坐标
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*/
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public static GeoPoint gcj02ToWgs84(double lon, double lat) {
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return new GeoPoint(lon, lat).offset(offset(lon, lat, false));
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}
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/**
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* 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return BD-09 坐标
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*/
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public static GeoPoint gcj02ToBd09(double lon, double lat) {
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double z = Math.sqrt(lon * lon + lat * lat) + 0.00002 * Math.sin(lat * X_PI);
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double theta = Math.atan2(lat, lon) + 0.000003 * Math.cos(lon * X_PI);
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double bd_lng = z * Math.cos(theta) + 0.0065;
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double bd_lat = z * Math.sin(theta) + 0.006;
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return new GeoPoint(bd_lng, bd_lat);
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}
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/**
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* 百度坐标系 (BD-09) 与 火星坐标系 (GCJ-02)的转换
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* 即 百度 转 谷歌、高德
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return GCJ-02 坐标
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*/
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public static GeoPoint bd09ToGcj02(double lon, double lat) {
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double x = lon - 0.0065;
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double y = lat - 0.006;
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double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * X_PI);
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double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * X_PI);
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double gg_lon = z * Math.cos(theta);
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double gg_lat = z * Math.sin(theta);
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return new GeoPoint(gg_lon, gg_lat);
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}
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/**
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* 百度坐标系 (BD-09) 与 WGS84 的转换
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return WGS84坐标
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*/
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public static GeoPoint bd09toWgs84(double lon, double lat) {
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final GeoPoint gcj02 = bd09ToGcj02(lon, lat);
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return gcj02ToWgs84(gcj02.getLon(), gcj02.getLat());
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}
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/**
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* WGS84 坐标转为 墨卡托投影
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @return 墨卡托投影
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*/
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public static GeoPoint wgs84ToMercator(double lon, double lat) {
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double x = lon * 20037508.342789244 / 180;
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double y = Math.log(Math.tan((90 + lat) * PI / 360)) / (PI / 180);
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y = y * 20037508.342789244 / 180;
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return new GeoPoint(x, y);
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}
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/**
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* 墨卡托投影 转为 WGS84 坐标
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*
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* @param mercatorX 墨卡托X坐标
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* @param mercatorY 墨卡托Y坐标
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* @return WGS84 坐标
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*/
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public static GeoPoint mercatorToWgs84(double mercatorX, double mercatorY) {
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double x = mercatorX / 20037508.342789244 * 180;
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double y = mercatorY / 20037508.342789244 * 180;
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y = 180 / PI * (2 * Math.atan(Math.exp(y * PI / 180)) - PI / 2);
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return new GeoPoint(x, y);
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}
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/**
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* WGS84 与 火星坐标系 (GCJ-02)转换的偏移算法（非精确）
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*
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* @param lon 经度值
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* @param lat 纬度值
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* @param isPlus 是否正向偏移：WGS84转GCJ-02使用正向，否则使用反向
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* @return 偏移坐标
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*/
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private static GeoPoint offset(double lon, double lat, boolean isPlus) {
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double dlon = transLon(lon - 105.0, lat - 35.0);
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double dlat = transLat(lon - 105.0, lat - 35.0);
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double magic = Math.sin(lat / 180.0 * PI);
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magic = 1 - CORRECTION_PARAM * magic * magic;
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final double sqrtMagic = Math.sqrt(magic);
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dlon = (dlon * 180.0) / (RADIUS / sqrtMagic * Math.cos(lat / 180.0 * PI) * PI);
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dlat = (dlat * 180.0) / ((RADIUS * (1 - CORRECTION_PARAM)) / (magic * sqrtMagic) * PI);
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if (isPlus) {
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return new GeoPoint(dlon, dlat);
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} else {
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return new GeoPoint(-dlon, -dlat);
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}
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}
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/**
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* 计算经度坐标
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*
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* @param lon 经度坐标
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* @param lat 纬度坐标
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* @return ret 计算完成后的
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*/
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private static double transLon(double lon, double lat) {
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double ret = 300.0 + lon + 2.0 * lat + 0.1 * lon * lon + 0.1 * lon * lat + 0.1 * Math.sqrt(Math.abs(lon));
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ret += (20.0 * Math.sin(6.0 * lon * PI) + 20.0 * Math.sin(2.0 * lon * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lon * PI) + 40.0 * Math.sin(lon / 3.0 * PI)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(lon / 12.0 * PI) + 300.0 * Math.sin(lon / 30.0 * PI)) * 2.0 / 3.0;
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return ret;
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}
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/**
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* 计算纬度坐标
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*
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* @param lon 经度
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* @param lat 纬度
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* @return ret 计算完成后的
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*/
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private static double transLat(double lon, double lat) {
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double ret = -100.0 + 2.0 * lon + 3.0 * lat + 0.2 * lat * lat + 0.1 * lon * lat
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+ 0.2 * Math.sqrt(Math.abs(lon));
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ret += (20.0 * Math.sin(6.0 * lon * PI) + 20.0 * Math.sin(2.0 * lon * PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(lat * PI) + 40.0 * Math.sin(lat / 3.0 * PI)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(lat / 12.0 * PI) + 320 * Math.sin(lat * PI / 30.0)) * 2.0 / 3.0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
private static double radian(double d) {
|
||||
return d * PI / 180.0;
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user