[mkgmap-dev] [PATCH v2] - round coordinates when zoomed out

Sat Nov 21 20:48:07 GMT 2009

Felix,

> yeah - the problem is not really one being smoother than the other, but 
> the ways being different. So if I use the multiple_elements_patch only 
> one "line" will be routable, whereas the copies are not routable. As I 
> wan't to display the ways side-by-side the further one zooms out, the 
> more the ways are apart from each other, or overlapping. At resolution 
> 22 this effect is barely noticeable, on 20 it is okay, but on 18 it 
> really gets distracting. Also roads running parallel to rivers often get 
> inside the river because of this. For me in practice on bicycle/mtb/foot 
> this does not matter much because I rarely use resolution 20 or lower, 
> but I assume that for carrouting on a motorway it would be nicer to have 
> all ways "smoothed" the same. Might be a bit difficult to change however 
> I think, because this would need additional calculation time for non 
> routable ways to know which nodes would be routing nodes in case a line 
> is not routable.

OK - I understand what you're saying. I have an easy solution for that
in mind and will work up a patch to try out.

Cheers,

Mark