[mkgmap-dev] [PATCH] make gps report correct exit when routing through roundabouts

Wed Feb 11 22:55:10 GMT 2009

> The good news is that I *"think"* I have found the data that causes the
>  problem. Call me sad if you want but I had a spare hour (not) so using
> osmosis I started splitting the tile giving the error into 4 quarters. I
> would run each of these and see if there were errors. I then split the
> quarter with errors and repeated the process until I was left with the
> attached file. In the bottom left quarter is a tiny roundabout. If you
> just move the north node northwards and the south road southwards a
> couple of feet then the tile runs without errors.

Nicely tracked down.

The northmost and the eastmost points on that roundabout are about
5m apart and routing nodes have to be more than 5.4m apart.

..Steve