[OSM-talk] Problems with tunnel rendering
frederik at remote.org
Tue Jul 31 13:59:36 BST 2007
> The cleanup was required because the original mapper had creatively
> created a collection of split ways so as to cause the thing to render
> as a dashed roadway. Oh dear.
"But it looked nice" ;-)
> Anyway, this is the first tunnel I've created that crosses coastline,
> and I'm not that happy with how it renders on osmarender.
Same problem with tunnels below forests. Problem is that tunnels are
layer=-1 and forests/oceans/lakes are layer=0 so will always be drawn
You might get away with assigning the bit of tunnel that goes below
the sea a layer=1 (or might also assign the whole length of the
tunnel layer=1 as long as you make sure anything that goes above it
That would probably achieve the desired result, but it would be a
hack just as the one the original "designer" made.
There has been talk of perhaps always drawing areas before anything
else (i.e. instead of "first everything at layer -5, then everything
at layer -4..." do "first all areas at -5, then all areas at -4, ...
all areas at +5, then everything else at -5..."), but I don't know if
that is feasible or if there are side effects I don't know of.
Frederik Ramm ## eMail frederik at remote.org ## N49°00.09' E008°23.33'
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