GIS座標轉換

實用的gis座標轉換工具類

package cn.ltsk.util;

import cn.ltsk.entity.gps;
public
class
positionutil 
double dlat = transformlat(lon - 105.0, lat - 35.0);
double dlon = transformlon(lon - 105.0, lat - 35.0);
double radlat = 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);
dlon = (dlon * 180.0) / (a / sqrtmagic * math.cos(radlat) * pi);
double mglat = lat + dlat;
double mglon = lon + dlon;
return
new gps(mglat, mglon);
}// gcj-02 to 84
public
static gps gcj_to_gps84(double lat, double lon) 
public
static gps gcj02_to_bd09(double gg_lat, double gg_lon) 
public
static gps bd09_to_gcj02(double bd_lat, double bd_lon) 
public
static gps bd09_to_gps84(double bd_lat, double bd_lon) 
public
static
boolean
outofchina(double lat, double lon) 
public
static gps transform(double lat, double lon) 
double dlat = transformlat(lon - 105.0, lat - 35.0);
double dlon = transformlon(lon - 105.0, lat - 35.0);
double radlat = 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);
dlon = (dlon * 180.0) / (a / sqrtmagic * math.cos(radlat) * pi);
double mglat = lat + dlat;
double mglon = lon + dlon;
return
new gps(mglat, mglon);
}public
static
double
transformlat(double x, double y) 
public
static
double
transformlon(double x, double y) 
//gps轉高德
public
static
double wgs2mars(double wglat, double wglon) // y x
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);
mglat = wglat + dlat;
mglon = wglon + dlon;
result[0]=mglat;
result[1]=mglon;
return result;
}//gps轉高德 多個點
public
static
double wgs2marsarrs(double xys)
public
static boolean outofchina(double lat, double lon)
public
static
void
main(string args) 
}

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