[OSM-dev] Tiles with data, but without ways

[Jochen Topf]

On Wed, Jan 31, 2007 at 03:18:51PM +0100, Frederik Ramm wrote:
> > Did this happen? I.e. does osmarender now render unwayed segments in
> > dashed grey? When will they start showing on the osmarender layer  
> > of the
> > slippy map?
> 
> Any changes to the osmarender slippy map require all tiles at home  
> contributors to update their rendering client, or at least the style  
> information. There are about 50 contributors. There is a wiki page  
> that contributors should regularly read, but I doubt all of them do,  
> and neither do I believe they all read this list.
> 
> To my knowledge the style hasn't yet changed in the SVN so even if  
> they were willing to change their setup, they wouldn't be able to.

I think a style change would not be enough for this. It is easy to have
a style rule which says: Render a dotted grey line for any segment. But
it is currently not possible with Osmarender to do this only for
segments without a way on top. In most cases it doesn't matter, because
the ways will later be drawn on top of the segments, so you don't see
the segments any more. But it breaks rendering of tunnels (which are
only in Osmarender4) and might break other thin or half-transparent
features. Event without wrong rendering it would mean you have lots of
unnecessary lines in your SVG (because they are not rendered anyway)
which will bloat the SVG file and slow down Inkscape. So I'll try to
implement this properly in Osmarender4.

Jochen
-- 
Jochen Topf  jochen at remote.org  http://www.remote.org/jochen/  +49-721-388298