[mkgmap-dev] [PATCH v3] - Sub-optimal fix to limit excessive inter-node arc length

Tue Apr 28 14:18:21 BST 2009

Hi Marko,

> I identified it with this patch:
> 
> +               String wayName = way.getName(); // only use for diagnostic messa
> ges
> +               if(wayName == null) {
> +                       wayName = way.getTag("ref");
> +                       if(wayName == null)
> +                               wayName = way.toString();
> +               }
> 
> The way.toString() spits out the latitude and longitude, among other
> things:
> 
> SEVERE (StyledConverter): Way WAY: null(67.09045886993408/23.672125339508057) [note=In public domain (original Kekoil work),note=*,source=Landsat,source=*,highway=unclassified,highway=*] contains a segment that is longer than 16383 (routing will fail for that way)
> 
> With JOSM, I determined that it probably is this way:
> 
> http://www.openstreetmap.org/browse/way/24731243/history

OK.

> Could the error message disclose the unit? 16383 doesn't say anything to me.

Well, I am confused about the units as well given that Coord.distance()
supposedly returns a value in metres but then RouteArc scales the arc
length with convertMeters() (sic).

> How could the problem be fixed in the map data? Split the way into two in
> the middle?

Yes, or into some smaller segments.

> If this only affects the routing along this way, I think I will just ignore
> it for now.  It seems to be a minor road in the almost unpopulated areas of
> Finland.

OK.

Cheers,

Mark