Logically, you need to know the lower of the two classifications being linked, and it may also be useful to know the higher of the two being linked. So I record that information in links_lower and links_higher tags. Then it can be rendered very neatly.
But I got flamed last time I proposed this ought to be fixed, so this information is offered on a tag-what-you-like basis, rather than a render-as-I-do basis. Richard On Fri, May 4, 2012 at 1:09 PM, Maarten Deen <md...@xs4all.nl> wrote: > I finally found out what the issue is with this [1] situation. My issue > with it is that IMHO it is not good to see the unclassified road rendered > on top of the primary_link road. I made a test here [2] where the left > primary is a primary_link and the right primary is a primary proper. > Apparently mapnik's renderering rules state that primary_link roads should > be rendered below unclassified roads. I haven't inspected the rendering > rules in detail (I'm also not familiar with them) but I have seen that > tertiary_link roads are also rendered below unclassified roads. I expect > that any *_link road is rendered below any other (or at least motorway - > unclassified) road. > > 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). > > [1] > http://www.openstreetmap.org/?**lat=51.352555&lon=6.014996&**zoom=18<http://www.openstreetmap.org/?lat=51.352555&lon=6.014996&zoom=18> > [2] > http://www.openstreetmap.org/?**lat=51.352419&lon=6.010627&**zoom=18<http://www.openstreetmap.org/?lat=51.352419&lon=6.010627&zoom=18> > > Regards, > Maarten > > ______________________________**_________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.**org/listinfo/talk<http://lists.openstreetmap.org/listinfo/talk> >
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