[mkgmap-dev] Splitter r95 - improved command line handling, tile naming based on location

Sun Sep 20 10:46:47 BST 2009

I've finally found the time to clean up and check in a couple of changes 
to the splitter that have been in the pipeline for a while:

- Improved command line handling. Now provides usage instructions, error 
messages when invalid parameters are specified, and it is easier to maintain 
the code.
- Tiles can be named based on the area they cover. To use this, download 
one of the cities files from http://download.geonames.org/export/dump/ and 
point to it with --geonames-file=cities<xxx>.zip. The splitter will then 
try to name each tile sensibly based on the biggest city in the tile. No 
doubt this logic can be improved in the future but it's hopefully still quite 
useful as it stands.

There is one compatibility issue that I know of with the new command line 
parsing code. Builds prior to r95 supported both --mapid and --mapname for 
specifying the map ID. The new code doesn't support multiple names for the 
same parameter so only --mapid will work now. If you are using --mapname 
in any scripts/tools, please change this to use --mapid. Or alternatively, 
if that's problematic then please complain and I'll consider adding support 
for --mapname back in. Sorry for any inconvenience this change might cause 
you.

Chris