[OSM-dev] Shaded relief in OSM

[Artem Pavlenko]

On 6 Dec 2007, at 14:16, Richard Fairhurst wrote:

> Artem Pavlenko wrote:
>
>> Yes, this is my feeling as well. The resolution is no good for high
>> zoom levels.
>
> Not sure how you're doing the relief,

Just downloaded ready-cooked TIFFs :)
> but SRTM is certainly capable of
> producing good results for large-scale maps if you "join the dots", so
> to speak. gdal_contour and DEM2TOPO will do this for top-down contours
> but, as to how you do the maths for the perspective shaded relief...?
>
It is not too difficult, some image filtering , see http:// 
perrygeo.net/wordpress/index.php?s=relief+gdal .
  I was thinking about coding plug-in for Mapnik to take raw SRTMs  
and create reliefs on-fly and it's project #2978 on my list.

>> I see having two sets with different cartography is a better  
>> approach.
>
> Project 2977 (see previous mail to talk :) ) is to mock up a highly
> stylised impression of what OSM cartography _could_ look like, and
> throw it at a Mapnik guru.

Sounds good.
>
> cheers
> Richard
>
>
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