[OSM-talk] Limitations of renderers

[OJ W]

So it might be useful to have a renderer that does everything on
request instead of storing large amounts of pregenerated tile images?
(i.e. so that the server requirements are no longer proportional to
the number of map styles that it serves)

If that could be made to work, then everyone could create a load of
map layers containing their preferred features - just upload a
stylesheet and immediately browse the results on this slippy map...



On Mon, May 12, 2008 at 6:57 PM, Igor Brejc <igor.brejc at gmail.com> wrote:
> David Earl wrote:
>
> On 12/05/2008 16:30, Steve Chilton wrote:
>
>
> I have been following with interest the thread on tagging and rendering,
> and would like to make a slight jump to comment on the inherent
> limitations for rendering the results.
>
>
> You're quite right of course, but equally there are other reasons to
> distinguish items even if they are actually rendered the same (I rather
> think some of the subtle variations of green could in fact all be one
> green in many cases). Also, there is a third dimension on electronic
> maps - turning elements and/or layers on and off - which we don't make a
> whole lot of use of at the moment on our renderers because we don't have
> the technology just yet.
>
> There's also a difference between adding more detail (e.g. cliffs, which
> seems a natural to be on the map) and trying to distinguish subtly
> different variations on a theme (kinds of woodland, grass vs park vs
> nature reserve vs recreation ground vs village green etc).
>
> David
>
>
>
> I think we are trying to put too much stuff into a general purpose map.
> Kinds of woodland aren't really important for someone who is looking for
> driving directions, for example. On the other hand, a hiker will probably be
> very interested about the different conditions of footways.
> This is one of the reasons Kosmos got started - to let anyone define its own
> rendering rules and encourage sharing of those rules for specialized maps
> (cycling, hiking, driving etc.) via the wiki. This way you still have the
> liberty of tagging things the way you want, without worrying how it would be
> rendered on the main OSM map.
>
> Igor
>
> --
> http://igorbrejc.net
>
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