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

Mon Mar 30 20:33:27 BST 2009

Hi Marko,

> Sorry for the delay, my subscriber cable was accidentally cut by
> road construction workers on Thursday and fixed today.
> 
> On Sun, Mar 29, 2009 at 10:10:57PM +0100, Mark Burton wrote:
> > 
> > Hi Paul,
> > 
> > Did you get out on your bike today, it was a super day around here.
> 
> I'm not Paul, but I couldn't resist.  The roads were nice and dry on
> Saturday morning when my 3-year-old wanted to have a ride on our family
> bike (Santana Cabrio Quad, currently configured as a triplet).  It was
> already pouring some snow flakes when we went for a quick ride.  An hour
> later, there was some 5 cm (2 inches) of snow everywhere.  All in all,
> we probably got 3 inches (15 cm) on Saturday.  I was hoping for
> summer-like road conditions soon, but now it looks like we must wait for
> a couple of more weeks for the first real family ride.

Well, we can get snow here way past Easter but not quite in the same
league.

> > > > Please test this patch and report success/failure.
> 
> One failure that I've had for a longer time is that I can't find the
> intersection Sillitie/Nahkiaisentie or Sillitie/Nieriäisentie.
> Nahkiaisentie/Nieriäisentie is found fine.  Could it be a problem with
> T-intersections?  Two more T-intersections that are not found:
> Jokivarrenkuja/Nahkiaisentie, Sorvatie/Nieriäisentie.  Here are the
> intersections:
> 
> http://www.openstreetmap.org/browse/node/290434977
> http://www.openstreetmap.org/browse/node/290435001
> http://www.openstreetmap.org/browse/node/288480793
> http://www.openstreetmap.org/browse/node/288481297
> 
> Here is one more failing T-intersection where the names of all three
> intersecting ways change:
> 
> http://www.openstreetmap.org/browse/node/288485085
> 
> I failed to find both these:
> 
> Nieriäisenkuja/Nahkiaisentie
> Sorvatie/Nahkiaisentie (the main road)
> 
> However, Nieriäisenkuja/Sorvatie is found, reported as
> "Nieriäisenkuja & Sorvatie & Nahkiaisentie".  I also tried
> it as Sorvatie/Nieriäisenkuja, successfully.

I admit that I know nothing about how the intersection stuff works. The
code we have been trying out simply outputs a data structure that lists
the roads in alphabetic order.

By including that data in the map, the gps now shows the find by
address and find intersection options. It's the gps that's finding the
intersections, not mkgmap.

Cheers,

Mark