offset_x = centre_pt.x - width / 2.0;
offset_y = centre_pt.y - height / 2.0;
}
+
+ public static double lon_from_distance(double lat, double distance) {
+ double c = AltosGreatCircle.earth_radius * Math.cos(lat * Math.PI / 180) * 2 * Math.PI;
+
+ if (c < 10)
+ return 0;
+ return distance/c * 360.0;
+ }
}