From 40fb794798897da0873db4bb03fe04200d874003 Mon Sep 17 00:00:00 2001 From: 648540858 <456panlinlin> Date: Mon, 11 Apr 2022 15:30:49 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BD=BF=E7=94=A8=E4=B8=B4=E6=97=B6=E6=96=B9?= =?UTF-8?q?=E6=A1=88=E8=A7=A3=E5=86=B3=E6=9B=B4=E6=96=B0=E9=80=9A=E9=81=93?= =?UTF-8?q?=E8=B0=83=E7=94=A8=E7=99=BE=E5=BA=A6API=E9=97=AE=E9=A2=98?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../iot/vmp/utils/Coordtransform.java | 126 ++++++++++++++++++ .../com/genersoft/iot/vmp/utils/GpsUtil.java | 91 +++++++------ 2 files changed, 176 insertions(+), 41 deletions(-) create mode 100644 src/main/java/com/genersoft/iot/vmp/utils/Coordtransform.java diff --git a/src/main/java/com/genersoft/iot/vmp/utils/Coordtransform.java b/src/main/java/com/genersoft/iot/vmp/utils/Coordtransform.java new file mode 100644 index 00000000..c10357c5 --- /dev/null +++ b/src/main/java/com/genersoft/iot/vmp/utils/Coordtransform.java @@ -0,0 +1,126 @@ +package com.genersoft.iot.vmp.utils; + +/** + * 坐标转换 + * 一个提供了百度坐标（BD09）、国测局坐标（火星坐标，GCJ02）、和WGS84坐标系之间的转换的工具类 + * 参考https://github.com/wandergis/coordtransform 写的Java版本 + * @author Xinconan + * @date 2016-03-18 + * @url https://github.com/xinconan/coordtransform + */ +public class Coordtransform { + + private static double x_PI = 3.14159265358979324 * 3000.0 / 180.0; + private static double PI = 3.1415926535897932384626; + private static double a = 6378245.0; + private static double ee = 0.00669342162296594323; + + /** + * 百度坐标系 (BD-09) 与 火星坐标系 (GCJ-02)的转换 + * 即 百度 转 谷歌、高德 + * @param bd_lon + * @param bd_lat + * @return Double[lon,lat] + */ + public static Double[] BD09ToGCJ02(Double bd_lon,Double bd_lat){ + double x = bd_lon - 0.0065; + double y = bd_lat - 0.006; + 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[] arr = new Double[2]; + arr[0] = z * Math.cos(theta); + arr[1] = z * Math.sin(theta); + return arr; + } + + /** + * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换 + * 即谷歌、高德 转 百度 + * @param gcj_lon + * @param gcj_lat + * @return Double[lon,lat] + */ + public static Double[] GCJ02ToBD09(Double gcj_lon,Double gcj_lat){ + double z = Math.sqrt(gcj_lon * gcj_lon + gcj_lat * gcj_lat) + 0.00002 * Math.sin(gcj_lat * x_PI); + double theta = Math.atan2(gcj_lat, gcj_lon) + 0.000003 * Math.cos(gcj_lon * x_PI); + Double[] arr = new Double[2]; + arr[0] = z * Math.cos(theta) + 0.0065; + arr[1] = z * Math.sin(theta) + 0.006; + return arr; + } + + /** + * WGS84转GCJ02 + * @param wgs_lon + * @param wgs_lat + * @return Double[lon,lat] + */ + public static Double[] WGS84ToGCJ02(Double wgs_lon,Double wgs_lat){ + if(outOfChina(wgs_lon, wgs_lat)){ + return new Double[]{wgs_lon,wgs_lat}; + } + double dlat = transformlat(wgs_lon - 105.0, wgs_lat - 35.0); + double dlng = transformlng(wgs_lon - 105.0, wgs_lat - 35.0); + double radlat = wgs_lat / 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); + dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI); + Double[] arr = new Double[2]; + arr[0] = wgs_lon + dlng; + arr[1] = wgs_lat + dlat; + return arr; + } + + /** + * GCJ02转WGS84 + * @param gcj_lon + * @param gcj_lat + * @return Double[lon,lat] + */ + public static Double[] GCJ02ToWGS84(Double gcj_lon,Double gcj_lat){ + if(outOfChina(gcj_lon, gcj_lat)){ + return new Double[]{gcj_lon,gcj_lat}; + } + double dlat = transformlat(gcj_lon - 105.0, gcj_lat - 35.0); + double dlng = transformlng(gcj_lon - 105.0, gcj_lat - 35.0); + double radlat = gcj_lat / 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); + dlng = (dlng * 180.0) / (a / sqrtmagic * Math.cos(radlat) * PI); + double mglat = gcj_lat + dlat; + double mglng = gcj_lon + dlng; + return new Double[]{gcj_lon * 2 - mglng, gcj_lat * 2 - mglat}; + } + + private static Double transformlat(double lng, double lat) { + double ret = -100.0 + 2.0 * lng + 3.0 * lat + 0.2 * lat * lat + 0.1 * lng * lat + 0.2 * Math.sqrt(Math.abs(lng)); + ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0; + ret += (20.0 * Math.sin(lat * PI) + 40.0 * Math.sin(lat / 3.0 * PI)) * 2.0 / 3.0; + 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 transformlng(double lng,double lat) { + double ret = 300.0 + lng + 2.0 * lat + 0.1 * lng * lng + 0.1 * lng * lat + 0.1 * Math.sqrt(Math.abs(lng)); + ret += (20.0 * Math.sin(6.0 * lng * PI) + 20.0 * Math.sin(2.0 * lng * PI)) * 2.0 / 3.0; + ret += (20.0 * Math.sin(lng * PI) + 40.0 * Math.sin(lng / 3.0 * PI)) * 2.0 / 3.0; + ret += (150.0 * Math.sin(lng / 12.0 * PI) + 300.0 * Math.sin(lng / 30.0 * PI)) * 2.0 / 3.0; + return ret; + } + + /** + * outOfChina + * @描述: 判断是否在国内，不在国内则不做偏移 + * @param lng + * @param lat + * @return {boolean} + */ + private static boolean outOfChina(Double lng,Double lat) { + return (lng < 72.004 || lng > 137.8347) || ((lat < 0.8293 || lat > 55.8271) || false); + }; + +} diff --git a/src/main/java/com/genersoft/iot/vmp/utils/GpsUtil.java b/src/main/java/com/genersoft/iot/vmp/utils/GpsUtil.java index 53e6a61d..47f94210 100644 --- a/src/main/java/com/genersoft/iot/vmp/utils/GpsUtil.java +++ b/src/main/java/com/genersoft/iot/vmp/utils/GpsUtil.java @@ -17,48 +17,57 @@ public class GpsUtil { public static BaiduPoint Wgs84ToBd09(String xx, String yy) { - try { - Socket s = new Socket("api.map.baidu.com", 80); - BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8")); - OutputStream out = s.getOutputStream(); - StringBuffer sb = new StringBuffer("GET /ag/coord/convert?from=0&to=4"); - sb.append("&x=" + xx + "&y=" + yy); - sb.append("&callback=BMap.Convertor.cbk_3976 HTTP/1.1\r\n"); - sb.append("User-Agent: Java/1.6.0_20\r\n"); - sb.append("Host: api.map.baidu.com:80\r\n"); - sb.append("Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2\r\n"); - sb.append("Connection: Close\r\n"); - sb.append("\r\n"); - out.write(sb.toString().getBytes()); - String json = ""; - String tmp = ""; - while ((tmp = br.readLine()) != null) { - // logger.info(tmp); - json += tmp; - } +// try { +// Socket s = new Socket("api.map.baidu.com", 80); +// BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8")); +// OutputStream out = s.getOutputStream(); +// StringBuffer sb = new StringBuffer("GET /ag/coord/convert?from=0&to=4"); +// sb.append("&x=" + xx + "&y=" + yy); +// sb.append("&callback=BMap.Convertor.cbk_3976 HTTP/1.1\r\n"); +// sb.append("User-Agent: Java/1.6.0_20\r\n"); +// sb.append("Host: api.map.baidu.com:80\r\n"); +// sb.append("Accept: text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2\r\n"); +// sb.append("Connection: Close\r\n"); +// sb.append("\r\n"); +// out.write(sb.toString().getBytes()); +// String json = ""; +// String tmp = ""; +// while ((tmp = br.readLine()) != null) { +// // logger.info(tmp); +// json += tmp; +// } +// +// s.close(); +// int start = json.indexOf("cbk_3976"); +// int end = json.lastIndexOf("}"); +// if (start != -1 && end != -1 && json.contains("\"x\":\"")) { +// json = json.substring(start, end); +// String[] point = json.split(","); +// String x = point[1].split(":")[1].replace("\"", ""); +// String y = point[2].split(":")[1].replace("\"", ""); +// BaiduPoint bdPoint= new BaiduPoint(); +// bdPoint.setBdLng(new String(decode(x))); +// bdPoint.setBdLat(new String(decode(y))); +// return bdPoint; +// //return (new String(decode(x)) + "," + new String(decode(y))); +// } else { +// logger.info("gps坐标无效！！"); +// } +// out.close(); +// br.close(); +// } catch (Exception e) { +// e.printStackTrace(); +// } - s.close(); - int start = json.indexOf("cbk_3976"); - int end = json.lastIndexOf("}"); - if (start != -1 && end != -1 && json.contains("\"x\":\"")) { - json = json.substring(start, end); - String[] point = json.split(","); - String x = point[1].split(":")[1].replace("\"", ""); - String y = point[2].split(":")[1].replace("\"", ""); - BaiduPoint bdPoint= new BaiduPoint(); - bdPoint.setBdLng(new String(decode(x))); - bdPoint.setBdLat(new String(decode(y))); - return bdPoint; - //return (new String(decode(x)) + "," + new String(decode(y))); - } else { - logger.info("gps坐标无效！！"); - } - out.close(); - br.close(); - } catch (Exception e) { - e.printStackTrace(); - } - return null; + + double lng = Double.parseDouble(xx); + double lat = Double.parseDouble(yy); + Double[] gcj02 = Coordtransform.WGS84ToGCJ02(lng, lat); + Double[] doubles = Coordtransform.GCJ02ToBD09(gcj02[0], gcj02[1]); + BaiduPoint bdPoint= new BaiduPoint(); + bdPoint.setBdLng(doubles[0] + ""); + bdPoint.setBdLat(doubles[1] + ""); + return bdPoint; } /**