帮我用java写一个WGS-84转ue5坐标的工具类
时间: 2024-05-07 09:15:40 浏览: 170
以下是一个简单的Java工具类,用于将WGS-84坐标转换为UE5坐标:
```
import java.util.*;
public class WGS84ToUE5Converter {
private static final double EARTH_RADIUS = 6378137.0;
private static final double MIN_LATITUDE = -85.05112878;
private static final double MAX_LATITUDE = 85.05112878;
private static final double MIN_LONGITUDE = -180.0;
private static final double MAX_LONGITUDE = 180.0;
private static final double PI = 3.14159265358979323846;
private static final double DEG_TO_RAD = PI / 180.0;
private static final double RAD_TO_DEG = 180.0 / PI;
private static final double UE5_SCALE = 100.0;
public static double[] convert(double latitude, double longitude) {
if (latitude < MIN_LATITUDE || latitude > MAX_LATITUDE || longitude < MIN_LONGITUDE || longitude > MAX_LONGITUDE) {
throw new IllegalArgumentException("Invalid latitude or longitude");
}
double x = EARTH_RADIUS * longitude * DEG_TO_RAD;
double y = EARTH_RADIUS * Math.log(Math.tan((PI / 4.0) + (latitude * DEG_TO_RAD / 2.0)));
double z = 0.0;
return new double[] {x / UE5_SCALE, y / UE5_SCALE, z / UE5_SCALE};
}
}
```
使用方法:
```
double latitude = 40.712776;
double longitude = -74.005974;
double[] ue5Coords = WGS84ToUE5Converter.convert(latitude, longitude);
System.out.println("UE5 coordinates: (" + ue5Coords[0] + ", " + ue5Coords[1] + ", " + ue5Coords[2] + ")");
```
该工具类使用WGS-84坐标系和UE5坐标系的标准参数。在转换过程中,首先将经度转换为X坐标,然后将纬度转换为Y坐标,最后将Z坐标设置为0。最后,将每个坐标值除以100,以便与UE5的默认缩放因子匹配。