[mkgmap-dev] Intra-tile routing badness (not inter-tile routing badness)

Fri Apr 10 21:51:00 BST 2009

Hi Clinton,

> I'll look at the fragment and see if the problem looks similar to the  
> one I described.

Thanks.

> In the meantime this error is giving me a lot of grief:
> 
> - The JOSM routing plugin works fine on the route.
> - Validator does not return anything significant.
> - The highway where the error occurs is all one segment. Splitting it  
> does not help.

My hunch is that the data is OK but we're encoding it wrong for some
reason.

> The only thing that corrects the error is to recreate the highway node  
> by node. There must be something in the data which JOSM does not  
> display, which causes the error. I'll try to reduce the osm extract to  
> a reasonablehe size in order to see if anything is noticeable.
> 
> Thanks for your (and everyone else's) help.

Certainly, a small example that exhibits the problem would be very
useful.

The reason why I think the encoding is wrong is because when I
experimented with using smaller limits on the number of points in a
line, some of these problems went away. Cutting the line into smaller
segments doesn't change the position of the points but, somehow, it
made a difference.

Cheers,

Mark