New file |
| | |
| | | package com.moral.util; |
| | | |
| | | import java.util.ArrayList; |
| | | import java.util.List; |
| | | |
| | | public class LatLngTransformation { |
| | | private static final double x_pi = 3.14159265358979324 * 3000.0 / 180.0; |
| | | /// <summary> |
| | | /// 中国正常坐标系 GCJ02 协议的坐标,转到百度地图对应的 BD09 协议坐标 |
| | | /// </summary> |
| | | /// <param name="lat">维度</param> |
| | | /// <param name="lng">经度</param> |
| | | public static List Convert_GCJ02_To_BD09(double lat, double lng) |
| | | { |
| | | List list=new ArrayList(); |
| | | double x = lng, y = lat; |
| | | 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); |
| | | lng = z * Math.cos(theta) + 0.0065; |
| | | lat = z * Math.sin(theta) + 0.006; |
| | | list.add(lng); |
| | | list.add(lat); |
| | | return list; |
| | | } |
| | | /// <summary> |
| | | /// 百度地图对应的 BD09 协议坐标,转到 中国正常坐标系 GCJ02 协议的坐标 |
| | | /// </summary> |
| | | /// <param name="lat">维度</param> |
| | | /// <param name="lng">经度</param> |
| | | public static List Convert_BD09_To_GCJ02(double lat,double lng) |
| | | { |
| | | List list=new ArrayList(); |
| | | double x = lng - 0.0065, y = 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); |
| | | lng = z * Math.cos(theta); |
| | | lat = z * Math.sin(theta); |
| | | list.add(lng); |
| | | list.add(lat); |
| | | return list; |
| | | } |
| | | } |