2009/12/22 Norbert Hoffmann <[email protected]>

> If you want to add landuse
> to the shown items, you would have to remove something else if you don't
> want to clutter the map (your example looks nice because nearly all streets
> are not shown).
>

I expected somehow answers like this, but I believe that these issues
(cluttering) could be handled by choosing appropriate colours (and very
important: layering order). Sorry for this, but: if it was _impossible_, why
does it work here:
http://maps.google.de/maps?hl=de&ie=UTF8&hq=&hnear=Rom,+Latium,+Italien&ll=49.908787,9.975586&spn=5.002496,9.876709&z=7

I don't say we should copy big G, but I think we are actually cluttering our
maps in lowzooms completely:
http://www.openstreetmap.org/?lat=50.34&lon=9.09&zoom=7&layers=0B00FTF

This for several reasons but IMHO mainly because at this scale there should
be a focus on motorways and motorroads (beeing rendered bolder than they are
right now) while primary, sec and tert could remain the same or become even
finer lines.

Whether or not there is a forest polygon underneath them will IMHO not
change readability at those zoom levels.

Mapnik shows landuses down to z9(?). You'll see, that there are some areas
> (esp. where landuse imports have been dome in the US) where you begin to
> loose the structure given by the grid of streets.
>

compare to Google Z.7: it is mainly a problem of optimizing line width and
colours...

On the other hand (and ignoring implications of the project name): this gets
into an ideologic discussion whether streets or forests structure the planet
;-), IMHO at planet scale forests are more important than streets.


> Norbert (proposes to delete the line types of waterways at z12captionless.
> "Rivers that need to be seen at lowzoom are already mapped as areas".)
>

This is another issue and might be dependant on the area you are mapping: I
doubt we have all larger siberian (to give an example) rivers mapped as
areas, but I guess we do have in Germany. The benefit would be faster
rendering, but is this improving the situation? Some years ago I was told
that the bottleneck for t...@h is not the rendering but the server that has to
load the rendered tiles from the clients. Is this still the case, or did the
server-upgrade change the situation?

cheers,
Martin
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