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WGS84 坐标与墨卡托投影互转

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WGS84 坐标与墨卡托投影互转
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大黄蜂coder 2022-12-15 18:24:46 +08:00 committed by GitHub
parent 47479f45a7
commit bc306e56de
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hutool-core/src/main/java/cn/hutool/core/util/CoordinateUtil.java
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@ -133,6 +133,34 @@ public class CoordinateUtil {
return gcj02ToWgs84(gcj02.lng, gcj02.lat);
}
/**
* WGS84 坐标转为 墨卡托投影
*
* @param lng 经度值
* @param lat 纬度值
* @return 墨卡托投影
*/
public static Coordinate wgs84ToMercator(double lng, double lat) {
double x = lng * 20037508.342789 / 180;
double y = Math.log(Math.tan((90 + lat) * Math.PI / 360)) / (Math.PI / 180);
y = y * 20037508.34789 / 180;
return new Coordinate(x, y);
}
/**
* 墨卡托投影 转为 WGS84 坐标
*
* @param mercatorX 墨卡托X坐标
* @param mercatorY 墨卡托Y坐标
* @return WGS84 坐标
*/
public static Coordinate mercatorToWgs84(double mercatorX, double mercatorY) {
double x = mercatorX / 20037508.34 * 180;
double y = mercatorY / 20037508.34 * 180;
y = 180 / Math.PI * (2 * Math.atan(Math.exp(y * Math.PI / 180)) - Math.PI / 2);
return new Coordinate(x, y);
}
//----------------------------------------------------------------------------------- Private methods begin
/**