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 |  |  | import com.alibaba.fastjson.JSONObject; | 
 |  |  | import com.alibaba.fastjson.TypeReference; | 
 |  |  | import com.doumee.dao.business.web.request.LocaltionDTO; | 
 |  |  |  | 
 |  |  | import java.awt.geom.GeneralPath; | 
 |  |  | 
 |  |  |  * 计算距离 | 
 |  |  |  */ | 
 |  |  | public class PositionUtil { | 
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 |  |  |  | 
 |  |  |  | 
 |  |  |     public static String getTxMapAddrByLatAndLng(Double lat,Double lng,String host,String mapkey){ | 
 |  |  |         try { | 
 |  |  |             if(lat == null || lng ==null){ | 
 |  |  | 
 |  |  |            String r = null; | 
 |  |  |            if(jsonObject.getJSONObject("result")!=null){ | 
 |  |  |                if(jsonObject.getJSONObject("result").getJSONObject("formatted_addresses")!=null){ | 
 |  |  |                    r =jsonObject.getJSONObject("result").getJSONObject("formatted_addresses").getString("formatted_addresses"); | 
 |  |  |                    r =jsonObject.getJSONObject("result").getJSONObject("formatted_addresses").getString("recommend"); | 
 |  |  |                } | 
 |  |  |                if(r!=null && !r.equals("")){ | 
 |  |  |                if(r==null || r.equals("")){ | 
 |  |  |                    r =jsonObject.getJSONObject("result").getString("address"); | 
 |  |  |                } | 
 |  |  |            } | 
 |  |  | 
 |  |  |         return null; | 
 |  |  |     } | 
 |  |  |     /** | 
 |  |  |      * 椭球参数 | 
 |  |  |      */ | 
 |  |  |     private static double pi = 3.14159265358979324; | 
 |  |  |     /** | 
 |  |  |      * 卫星椭球坐标投影到平面地图坐标系的投影因子 | 
 |  |  |      */ | 
 |  |  |     private static double a = 6378245.0; | 
 |  |  |     /** | 
 |  |  |      * 椭球的偏心率 | 
 |  |  |      */ | 
 |  |  |     private static double ee = 0.00669342162296594323; | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 经纬度 GPS转高德 | 
 |  |  |      * | 
 |  |  |      * @param wgLon GPS经度 | 
 |  |  |      * @param wgLat GPS维度 | 
 |  |  |      * @return 转化后的经纬度坐标 | 
 |  |  |      */ | 
 |  |  |     public static AMap transform(double wgLon, double wgLat) { | 
 |  |  |         if (outOfChina(wgLat, wgLon)) { | 
 |  |  |             return new AMap(wgLon, wgLat); | 
 |  |  |         } | 
 |  |  |  | 
 |  |  |         double dLat = transformLat(wgLon - 105.0, wgLat - 35.0); | 
 |  |  |         double dLon = transformLon(wgLon - 105.0, wgLat - 35.0); | 
 |  |  |         double radLat = wgLat / 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); | 
 |  |  |         dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi); | 
 |  |  |         double transLat = wgLat + dLat; | 
 |  |  |         double transLon = wgLon + dLon; | 
 |  |  |         return new AMap(transLon, transLat); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 判断是否为国外坐标,,不在国内不做偏移 | 
 |  |  |      * | 
 |  |  |      * @param lat | 
 |  |  |      * @param lon | 
 |  |  |      * @return | 
 |  |  |      */ | 
 |  |  |     private static Boolean outOfChina(double lat, double lon) { | 
 |  |  |         if (lon < 72.004 || lon > 137.8347) | 
 |  |  |             return true; | 
 |  |  |         if (lat < 0.8293 || lat > 55.8271) | 
 |  |  |             return true; | 
 |  |  |         return false; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 纬度转换 | 
 |  |  |      * | 
 |  |  |      * @param x | 
 |  |  |      * @param y | 
 |  |  |      * @return | 
 |  |  |      */ | 
 |  |  |     private static double transformLat(double x, double y) { | 
 |  |  |         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)); | 
 |  |  |         ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0; | 
 |  |  |         ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0; | 
 |  |  |         ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0; | 
 |  |  |         return ret; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 经度转换 | 
 |  |  |      * | 
 |  |  |      * @param x | 
 |  |  |      * @param y | 
 |  |  |      * @return | 
 |  |  |      */ | 
 |  |  |     private static double transformLon(double x, double y) { | 
 |  |  |         double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x)); | 
 |  |  |         ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0; | 
 |  |  |         ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0; | 
 |  |  |         ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0; | 
 |  |  |         return ret; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 高德经纬度类 | 
 |  |  |      */ | 
 |  |  |     public static class AMap { | 
 |  |  |         /** | 
 |  |  |          * 经度 | 
 |  |  |          */ | 
 |  |  |         private double longitude; | 
 |  |  |  | 
 |  |  |         /** | 
 |  |  |          * 维度 | 
 |  |  |          */ | 
 |  |  |         private double latitude; | 
 |  |  |  | 
 |  |  |         public AMap(double longitude, double latitude) { | 
 |  |  |             this.longitude = longitude; | 
 |  |  |             this.latitude = latitude; | 
 |  |  |         } | 
 |  |  |  | 
 |  |  |         public double getLongitude() { | 
 |  |  |             return longitude; | 
 |  |  |         } | 
 |  |  |  | 
 |  |  |         public double getLatitude() { | 
 |  |  |             return latitude; | 
 |  |  |         } | 
 |  |  |     } | 
 |  |  |     public static void main(String[] args) { | 
 |  |  | //        System.out.println( | 
 |  |  | //          PositionUtil.getTxMapAddrByLatAndLng(Double.valueOf("31.76792509"),Double.valueOf("117.23267758"),"https://apis.map.qq.com","3AYBZ-I5R3V-2BVP3-UWBDQ-ETBM5-B2BBQ") | 
 |  |  | //        ); | 
 |  |  |  | 
 |  |  | //        String str ="[{\"lat\":31.732726766273103,\"lng\":117.37721605116087,\"height\":0},{\"lat\":31.72079687406289,\"lng\":117.39831914258241,\"height\":0},{\"lat\":31.714484720597493,\"lng\":117.39831914258241,\"height\":0},{\"lat\":31.71233192243245,\"lng\":117.39583137996954,\"height\":0},{\"lat\":31.71401037878662,\"lng\":117.3785457182995,\"height\":0}]"; | 
 |  |  | //        TypeReference typeReference =  new TypeReference<List<LocaltionDTO>>(){}; | 
 |  |  | //        List<LocaltionDTO> array = JSONObject.parseObject(str, typeReference.getType()); | 
 |  |  | //        if(array == null || array.size() ==0){ | 
 |  |  | //           System.out.println("================="); | 
 |  |  | //        } | 
 |  |  | //        System.out.println(isInPolygon(  117.39387876,31.71365546,array)); | 
 |  |  | //        AMap aMap = transform( 117.38823300,  31.71550000); | 
 |  |  | //        System.out.println(aMap.getLatitude()+""+aMap.getLongitude()); | 
 |  |  | //        System.out.println(isInPolygon(  aMap.getLongitude(),aMap.getLatitude(),array)); | 
 |  |  |     } | 
 |  |  |    /* "latitude": 31.71553300, | 
 |  |  |             "longitude": 117.39, | 
 |  |  | 117.393962,31.713690 | 
 |  |  |             31.71550000   117.38823300 | 
 |  |  |    */ /** | 
 |  |  |      * 判断坐标点是否在多边形区域内 | 
 |  |  |      * | 
 |  |  |      * @param pointLon 要判断的点的经度 |