[Tilesathome] Take heed of access restrictions

[Marc Schütz]

Am Sonntag, 18. Mai 2008 14:37 schrieb Knut Arne Bjørndal:
> On Sun, May 18, 2008 at 10:58:03AM +0200, Marc Schütz wrote:
> > Am Samstag, 17. Mai 2008 22:41 schrieben Sie:
> > > On Sat, May 17, 2008 at 11:30:58AM +0200, Marc Schütz wrote:
> > > > Am Freitag, 16. Mai 2008 20:21 schrieben Sie:
> > > > > Also, now I found an old test output here that indicates it might
> > > > > in some cases have the same kind of problem with bezier curves that
> > > > > cycleways used to have. Try making a local test file with loads of
> > > > > squiggly roads and see if the access markings follow the roads
> > > > > properly. If it doesn't smart-linecap's is probably the problem.
> > > >
> > > > I don't see this problem here.
> > > >
> > > > I'm currently rerendering the Bamberg tiles with the new stylesheets.
> > > > Attached are some SVGs for the relevant zoom levels and the new
> > > > patch.
> > >
> > > It can take some wiggling to provoke that bug, take a look at
> > > http://bob.cakebox.net/tmp/reference-05.curved.example.png
> >
> > This file doesn't exist (404), but in
> > http://bob.cakebox.net/tmp/access-private.png I can see what you mean.
> >
> > As I understand the problem, smart-linecap='no' must only be used, when
> > it is also used on the underlying way. This is the case for some way
> > types (section "Linear casings"), but not for others, e.g.
> > highway=pedestrian. This means that it would be necessary to handle each
> > highway type explicitly instead of using one style for all :-( Do you
> > know a better way?
>
> No, sorry but you need to handle highway types that use smart-linecap
> different from those that don't. The reason some highway types don't
> use smart-linecap is that it doesn't work well with dashes.

Well, this is ugly. I had to repeat the rules block several times, because 
Osmarender doesn't understand complex conditions (e.g. highway=footway or 
highway=cycleway or (highway=track and (tracktype=grade3 or tracktype=grade4 
or tracktype=grade5)) ).

Anyway, here's the new version.

Regards, Marc
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