These parameters define the geographical area which is guaranteed to be visible on the map.
Entries are made in degree as floating point values.
Value range: longitude_min: -540 to +180 longitude_max: -180 to +540
latitude_min: -90 to +90 latitude_max: -90 to +90
Note: latitude_min must be smaller then latitude_max!
Example:
http://maps1.locr.com/?print=1&map_config=202&width_cm=10&height_cm=10&latitude_min=52.26920787174304&longitude_min=10.509066581726074&latitude_max=52.27971148247399&longitude_max=10.536961555480957