[mkgmap-dev] [PATCH v10] - patch to support road find by name (now thinking about putting this in trunk)

Tue Mar 31 10:00:23 BST 2009

Hi Stefan,

> > Personally, I think the search weirdness we are seeing would go away if
> > we could implement the extra indexing stuff (MDR file?)
> >
> > The reason I believe that is because I installed the complete NZ mapset
> > (not produced by mkgmap) on my gps and the road search function worked
> > just as you would hope. But then I installed a small portion of the map
> > and the road search then behaved like it does on our maps. So, I think
> > that the extra file(s) in the mapset alter how the road search works.
> >
> 
> By 'complete NZ mapset', do you mean a commercial (and therefor encrypted)
> mapset? I'm far from understanding the garmin file formats, but if  
> there are non-crypted examples of maps with working street search,  
> couldn't there been extracted at least some knowledge?

See  http://nzopengps.org/

> As an example I have here some OSM maps generated with some unknown  
> tool (I asked the developer but got no answer) with working street  
> search. So at least some tool out there knows how to do it.
> 
> So is someone knows this tool, wouldn't it be possible to generate  
> simplistic example maps (like with one or two streets) to study the  
> format of the files?
> 
> So my question is: are there any known tools that can generate street  
> search enabled maps? I obviously only use mkgmap so far. Does  
> cgsmapper have this functionality?

I agree, to improve the search functionality of our maps we need to
learn what's missing/wrong and looking at simple examples of working
maps can be very informative.

Cheers,

Mark