Graham Jones (Physics) wrote: > I sometimes think that the main slippy map has a bit too much plain > white, especially in undeveloped places where there are not many roads > such as the Pennines or North Yorkshire Moors in Northern England - I > keep wondering if this is an un-mapped area, or if there is nothing > there.... > > The cycle map is very good with shaded elevation contours, but the > main osmarender and mapnik maps do not include this. > I would like this sort of shading to be available for the main map > too, but I am not convinced that rendering it into the tiles is good, > because sometimes those extra colours or contour lines are a > distraction, so it would be nice for the user to be able to switch > them off. > > I wondered if there is any reason why we could not create an overlay > of elevation information (contours and or shading) that could sit on > top of the main map as a user selectable leayer? > > I have had a quick go at http://maps.webhop.net/srtm.html. It sort of > works - the high ground stands out, and you can see the shape of the > ground, and you can switch the overlay off and on. It does not work > that well as an overlay though because it is not really transparent > enough. I find that sometimes the transparency works quite well and > you can see the map underneath, and others it is practically opaque. pretty nice, though when zoomed in, it gets blocky - maybe this is actually how the parcel boundaries are, maybe you where just trying to get stuff prototyped. I keep thinking it would be nice to integrate OSM data with free satellite data like java based WorldWind NASA data as the background - haven't really researched this yet.
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