- // given the current lon/lat, fill in the array of local chunks.
- // If the chunk isn't already in the cache, then read it from
- // disk.
- int update( void );
+ // given the current lon/lat (in degrees), fill in the array of
+ // local chunks. If the chunk isn't already in the cache, then
+ // read it from disk.
+ int update( double lon, double lat );