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[mkgmap-dev] Tile names in IMG files

From Steve Ratcliffe steve at parabola.me.uk on Sat Sep 5 16:50:05 BST 2009


On 04/09/09 16:26, Steve Hosgood wrote:
>> I don't think there is any big significance to the names, they
>> can be fairly arbitrary strings.
> Ah - not so! The .MDR file (not yet created by mkgmap) stores the names
> of subtile-files as 32-bit integers and expects the subtile files
> themselves to have names of the 'printf' format "I%07lX.GMP". See
> http://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/MDR_Subfile_Format#MDR1_Subtile_List

Well I don't agree.  If you go to http://mapcenter2.cgpsmapper.com/
and download any of the freely available maps from there, you will see
many (probably all of them) that have names that are 8 digits. It
appears that all of the ones that have an installer have a mdr file.

A map has a name and a number.  We always make the name to be the
string representation of the number, as I believe does cgpsmapper.
It has never caused a problem before.


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