[OSM-talk] Mapnik rendering issue with *_link roads

[Richard Mann]

That's why you need to know the lower of the two classifications being
linked (so you can put the link just under the lower one)

On Fri, May 4, 2012 at 4:11 PM, AJ Ashton <aj.ashton at gmail.com> wrote:

> On Fri, May 4, 2012 at 8:09 AM, Maarten Deen <mdeen at xs4all.nl> wrote:
> > Is this behaviour of mapnik wanted? As I said: IMHO it is not pleasing to
> > the eye to see the unclassified road rendered on top of the primary_link
> > road. In order of priority, a *_link road is just below its * counterpart
> > but above the next lower road (so primary -> primary_link -> secondary).
>
> I would guess that, yes, this is the intention. The example you point
> out is only minorly aesthetically displeasing. But if links were
> rendered on top of unclassified roads, the situation of a link merging
> into an unclassified (rather than passing through) would look much
> worse. Example:
>
> http://dl.dropbox.com/u/2398828/scrot/link_order.png
>
> Granted, links don't feed into unclassifieds as often as they do
> higher classifications of road, but it still happens a lot.
>
> --
> AJ Ashton
>
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