12
lon2pixel( float zoom,
16
pixel2lon( float zoom,
20
pixel2lat( float zoom,
23
latdeg2latmin( float lat);
26
londeg2lonmin( float lon);
29
latdeg2latsec( float lat);
32
londeg2lonsec( float lon);
35
get_bearing(double lat1, double lon1, double lat2, double lon2);
38
get_distance(double lat1, double lon1, double lat2, double lon2);
41
get_zoom_covering(int width, int height, double lat_max, double lon_min, double lat_min, double lon_max);