[mkgmap-dev] Bad routing on eTrex and MapSource

Mon Jul 13 08:51:03 BST 2020

Hi Gerd

That's a shame, thanks for all the investigating. This is normally only
a problem at the start & end of journeys.

Is "no-arcs-first.patch" going to become part of trunk?

Ticker

On Mon, 2020-07-13 at 05:43 +0000, Gerd Petermann wrote:
> Hi Ticker,
> 
> I think we have to live with this problem. I found the same error
> with original Garmin demo maps, e.g. "Topo Deutschland" from 2010
> tile 16608746.img. MapSource calculates a big detour, Basecamp
> doesn't.
> Inverted route is short in both programs:
> 1.      Rheinstraße     0 m                     0:00:00        
>  N53.01308 E8.77969
> 2.      Get on Rheinstraße and drive north      0 m     0 m    
>  0:00:00 0:00:00 180° grid       N53.01308 E8.77969
> 3.      Turn right onto Neckarstraße    13 m    13 m    0:00:01
> 0:00:01 17° grid        N53.01317 E8.77973
> 4.      Turn right onto Ahrstraße       32 m    19 m    0:00:08
> 0:00:09 99° grid        N53.01315 E8.78001
> 5.      Ahrstraße       44 m    12 m    0:00:13 0:00:22 180° grid    
>    N53.01306 E8.78005
> 
> I did not find a route restriction or oneway road which would explain
> this.
> 
> Gerd