[mkgmap-dev] Sending multiple maps to gps

Wed Oct 7 11:53:29 BST 2009

Quoting Steve Ratcliffe <steve at parabola.me.uk>:

>
> Hi
>
>>> In my case both maps are shown as "family name" "[1] OSM street map"
>>> although they were built with different parameters
>>> Cheers
>>> Carlos
>>
>> Have you tried using sendmap instead (to create the single   
>> gmapsupp.img file)?
>
> This has come up a lot recently, and we should have a go at fixing it.
> I wasn't previously aware that you could send down maps in different
> families into the one gmapsupp.
>
> The MPS file that gets inserted into the gmapsupp has fields for
> family and product ids for each map, so I am guessing it is as simple
> as setting those correctly.
>
> ..Steve
 From what I've gleaned from this list, if you create a mapset with  
multiple layers, each layer *has* to have a different Family ID.