[mkgmap-dev] [PATCH v7] - alpha patch to support road find by name

Wed Mar 18 20:05:11 GMT 2009

Hi Mark,

I just returned from a 60 km bike journey.  The routing worked great.
When I refused to enter a track that was covered by soft snow, the
Edge either computed a new route or allowed me to continue on a parallel
road while displaying the "correct" route on the map.

> When I tested the feature, the zip info was displayed along with the
> city name when matching roads are shown. It could possibly also be
> displayed if you select a road on the map (not tested, just guessing).

OK, I'll look into this.  The zip info would be a very useful addition.

> > When I search for "14", the list will only show "14", not "140".  Searching
> > for "140" returns the road with ref=140.
> 
> You've lost me here - are you searching for an exit called 14?

In Finland, the motorways starting from Helsinki are numbered 1 through 7.
The secondary roads parallel to the motorways are numbered 110, 120, 130,
..., 170.  There is a road with ref=14 up north (not a motorway, AFAIK).
In the search dialog for street names, the search is incremental for
names, e.g., if I type "A", I see street names starting with "A".  Same
thing if I search for "1".  Alas, if I type "14", the list will reduce to
just "14".  If I type "140", the road with ref=140 will show up again.

> > When it comes to joining roads, it would be good not to join long roads
> > (several hundred kilometers), such as the 140.  Now the list of matches
> > will display useful information: which section of the ref=140 I want to
> > go to.  You could implement it so that road sections are joined when both
> > sections are in the same "city".
> 
> Good point - actually, I haven't got my head around the joining of
> roads to minimise the number of hits. It's not as simple to implement
> as you may imagine.

I have programmed long enough to know that simple-sounding features are
not necessarily easy to implement.

	Marko