[mkgmap-dev] [locator] What's next?

Mon Jun 6 19:33:44 BST 2011

> Hi WanMil,

Henning,

> just a question: How does bnd-file creation work? Does it process
> everything inside the osm or pbf-file or just relations and ways
> containing boundary=administrative? If not, this would be a great
> improvement, because no osmosis is needed. osmosis isn't a very fast
> tool for filtering data.

bnd-file creation processes the whole input file. It does not filter for 
boundary=administrative. The reason for this is that postal_codes are 
also accepted.
The osmosis step is required because otherwise you probably will have 
memory problems. If you use unfiltered data for the bnd-creation mkgmap 
must first read *all* points and *all* ways from the input file. And if 
you don't have a machine with tons of GB this will exhaust your memory.
Maybe someone can do some research if there is a better tool for 
filtering the boundary data.

>
> Another thing would be the generation of a working gmapsupp.img directly
> with mkgmap.

Yes, that would be nice but it's not the aim of the locator branch. The 
locator branch should do a better city/region/country/zip matching but 
no improvement to the garmin index format.

>
> Henning
>

WanMil