JWDUtil.java
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/**
* JWDUtil.java
* com.bsth.web.service
* JwdChange
*/
package com.bsth.util;
import java.util.HashMap;
import java.util.Map;
import com.bsth.util.CoordinateConverter.Location;
/**
* @author caiwangjue
* @date 2011-10-13 上午09:53:40
* 经纬度和城建坐标互转
*/
public class JWDUtil {
/**
* 经纬度坐标转换成上海城建坐标
* @param fLon 经度
* @param fLat 纬度
* @return 城建坐标Map
*/
@SuppressWarnings("rawtypes")
public static Map ConvertJWToSH(double fLon, double fLat)
{
double jd = fLon;
double wd = fLat;
Map map = ConvertJWDToBeijing(jd, wd);
//Map rmap = ConvertBeijingToShanghai((Double)map.get("x"), (Double)map.get("y"));
return map;
}
/**
* 上海城建坐标转换为经纬度
* @param fXX X坐标
* @param fYY Y坐标
* @return 经纬度坐标Map
*/
@SuppressWarnings("rawtypes")
public static Map ConvertSHToJW(double fXX, double fYY)
{
double x = fXX;
double y = fYY;
Map map = ConvertShanghaiToBeijing(x, y);
Map rmap = ConvertBeijingToJWD((Double)map.get("x"), (Double)map.get("y"));
return rmap;
}
/**
* 经纬度坐标转换成北京城建坐标
* @param jd 经度
* @param wd 纬度
* @return 城建坐标Map
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
private static Map ConvertJWDToBeijing(double jd, double wd)
{
Map map = new HashMap();
double num = 121.4671606;
double num2 = jd - num;
double num3 = num2 / 57.2957795130823;
double a = (wd / 180.0) * Math.PI;
double num5 = Math.tan(a);
double num6 = Math.cos(a);
double num7 = (0.006738525415 * num6) * num6;
double num8 = num5 * num5;
double d = 1.0 + num7;
double num10 = 6399698.9018 / Math.sqrt(d);
double num11 = ((num3 * num3) * num6) * num6;
double num12 = num5 * num6;
double num13 = num12 * num12;
double num14 = 32005.78006 + (num13 * (133.92133 + (num13 * 0.7031)));
double num15 = (((6367558.49686 * wd) / 57.29577951308) - ((num12 * num6) * num14)) + ((((((((((((((num8 - 58.0) * num8) + 61.0) * num11) / 30.0) + (((4.0 * num7) + 5.0) * d)) - num8) * num11) / 12.0) + 1.0) * num10) * num5) * num11) / 2.0);
double num16 = ((((((((((((num8 - 18.0) * num8) - (((58.0 * num8) - 14.0) * num7)) + 5.0) * num11) / 20.0) + d) - num8) * num11) / 6.0) + 1.0) * num10) * (num3 * num6);
map.put("x", (num15 + -3457140.589));
map.put("y", num16);
return map;
}
/**
* 上海城建坐标转换为北京城建坐标
* @param x X坐标
* @param y Y坐标
* @return 城建坐标Map
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
private static Map ConvertShanghaiToBeijing(double x, double y)
{
Map map = new HashMap();
double num = x;
x = y;
y = num;
double num2 = 3458144.04;
double num3 = -146121.96;
double num4 = 1.000140682;
double num5 = 0.013930556;
double num6 = (num2 + (num4 * x)) - (num5 * y);
double num7 = (num3 + (num4 * y)) + (num5 * x);
map.put("x", num6);
map.put("y", (num7 + 21000000.0) + 500000.0);
return map;
}
/**
* 北京城建坐标转换为上海城建坐标
* @param x X坐标
* @param y Y坐标
* @return 城建坐标Map
*/
@SuppressWarnings({ "rawtypes", "unused", "unchecked" })
private static Map ConvertBeijingToShanghai(double x, double y)
{
Map map = new HashMap();
double num = 3458144.04;
double num2 = -146121.96;
double num3 = 1.000140682;
double num4 = 0.013930556;
y -= 21500000.0;
double num5 = ((num3 * (x - num)) + (num4 * (y - num2))) / (Math.pow(num3, 2.0) + Math.pow(num4, 2.0));
double num6 = ((num3 * (y - num2)) - (num4 * (x - num))) / (Math.pow(num3, 2.0) + Math.pow(num4, 2.0));
map.put("x", num6);
map.put("y", num5);
return map;
}
/**
* 北京城建坐标转换为经纬度
* @param x X坐标
* @param y Y坐标
* @return 经纬度坐标Map
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
private static Map ConvertBeijingToJWD(double x, double y)
{
Map map = new HashMap();
double num = 123.0;
y -= 21500000.0;
double num2 = (x / 1000000.0) - 3.0;
double num3 = (((((27.11115372595 + (9.02468257083 * num2)) - (0.00579740442 * Math.pow(num2, 2.0))) - (0.00043532572 * Math.pow(num2, 3.0))) + (4.857285E-05 * Math.pow(num2, 4.0))) + (2.15727E-06 * Math.pow(num2, 5.0))) - (1.9288E-07 * Math.pow(num2, 6.0));
double num4 = Math.tan((num3 * Math.PI) / 180.0);
double num5 = 0.0067385254147 * Math.pow(Math.cos((num3 * Math.PI) / 180.0), 2.0);
double num6 = (y * Math.sqrt(1.0 + num5)) / 6399698.90178271;
double num7 = num3 - ((((1.0 + num5) * num4) * (((90.0 * Math.pow(num6, 2.0)) - ((7.5 * ((5.0 + (3.0 * Math.pow(num4, 2.0))) -
((9.0 * num5) * Math.pow(num5, 2.0)))) * Math.pow(num6, 4.0))) + ((0.25 * ((61.0 + (90.0 * Math.pow(num5, 2.0)))
+ (45.0 * Math.pow(num4, 4.0)))) * Math.pow(num6, 6.0)))) / Math.PI);
double num8 = (((180.0 * num6) - ((30.0 * ((1.0 + (2.0 * Math.pow(num4, 2.0))) + num5)) * Math.pow(num6, 3.0))) +
((1.5 * ((5.0 + (28.0 * Math.pow(num4, 2.0))) + (24.0 * Math.pow(num4, 4.0)))) * Math.pow(num6, 5.0))) / (Math.PI * Math.cos((num3 * Math.PI) / 180.0));
double num9 = num + num8;
map.put("x", num9);
map.put("y", num7);
return map;
}
@SuppressWarnings({ "rawtypes", "unused" })
private static Map ConvertJWDToSH(double x, double y)
{
Map map = new HashMap();
double num = 123.0;
return map;
}
public static void main(String[] args)
{
//2447.667013 351.858477
Map map = JWDUtil.ConvertJWToSH(121.56320853169203, 31.264449981962045);
/*System.out.println(map.get("x")+"####"+map.get("y"));*/
Map map_2 = JWDUtil.ConvertSHToJW(8733.12663,103.65674);
System.out.println(map_2.get("x")+"####"+map_2.get("y"));
Location location = CoordinateConverter.LocationMake(Float.parseFloat(map_2.get("x").toString()), Float.parseFloat(map_2.get("y").toString()));
location = CoordinateConverter.bd_encrypt(CoordinateConverter.transformFromWGSToGCJ(location));
System.out.println(location.getLng()+","+location.getLat());
}
}