[OSM-dev] Nestoria Tiles Write Up

Joerg Ostertag (OSM Munich/Germany) openstreetmap at ostertag.name
Thu Oct 26 14:01:29 BST 2006


On Thursday 26 October 2006 13:20, Etienne wrote:
> On 10/26/06, Nick Whitelegg <Nick.Whitelegg at solent.ac.uk> wrote:
> > >see my comments towards the end ;D
> > >
> > >The librsvg approach looks interesting, as ideally what is needed is a
> > >lightweight SVG to PNG converter (command line based and easily
> > >installable without a long dependency list). Does librsvg have many
> > >dependencies?
> >
> > Just a few ideas - not all might be 100% feasible/sensible - but thinking
> > out loud.
> >
> > Apologies for following up my own post but I got an answer to this one...
> > it does seem it has quite a long list of dependencies. In the absence of
> > a server machine powerful enough to serve SVG to clients,
>
> Serving transforming .osm to .svg is not that demanding.  The current
> Osmarender is pretty quick especially on tile sized chunks.  It can be made
> even quicker by reducing the amount of detail which you want to do anyway
> at some zoom levels.
>
> I think converting .svg to .png is probably a more demanding process.
>
> Both FF and IE do a fairly decent job of rendering SVG.

Except ....
that my FF 
 - doesn't display any street names.
 - It's slow like hell (My little 3GHz,2MB RAM Machine 
			is unworkable while displaying these svg-s)
 - It takes 20 seconds to render
 - It takes 20 seconds to zoom
 - It takes 20 seconds to move

And I tried with an IE on an Windows XP.
  It only displayed the XML structure and no picture.

... well ...

-

Joerg




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