[OSM-talk] Yah** imagery

[Richard Fairhurst]

Steve Chilton wrote:

> On OSM front is there any possibility of including relief tiles from the
> data you compiled within the slippy map, or as download layer for people
> producing custom output - possibly at certain zoom levels, and probably
> with suitable amount of colour-washout? Will this impose even more load
> on server?

I think this dovetails with the current discussion under "coastline  
polygons". Producing polygons from the SRTM contour data is not too  
difficult - I use a program called DEM2TOPO, but others have suggested  
the widely available gdal_contour. If Mapnik can cope with coastlines  
I see no reason why it couldn't cope with hill shading, though others  
will know much more than me about that!

As for "do we want to do it?" - yes, that'd be an excellent discussion  
point for the cartography meeting.

> PS: what is the "white hole" all about on the Google Map output for the
> Lake District that shows in the middle of the green extents of the
> National Park (S and E of Wastwater)? Has there been some localised
> nuclear disaster perhaps?

Odd. I'd thought the green symbolised "National Park" but that doesn't  
explain the big white hole!

(And why is it that searching for "Wastwater" on maps.google.co.uk  
takes me to a map of Huntingdon? (cf the Trafford Centre on streetmap)  
I'm starting to believe we need a cartographical equivalent of  
thedailywtf.com. :) )

cheers
Richard