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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