Pieren <pieren3 <at> gmail.com> writes: >>http://wiki.openstreetmap.org/wiki/Aerial_photography_funding_appeals > >The wiki says about this supplier: >About $17 per sq km for basic 2 meter resolution photography.
Does that mean that each pixel covers an area roughly 2m by 2m? If so this is not any better than the Yahoo aerial imagery that OSM can already use for many countries. (It could still be worth buying for places not covered by Yahoo.) The aerial photographs used by People's Map are from getmapping.com (in fact, it seems to be run by the same people somehow) and those have a resolution of either 25cm or 12.5cm. That's the kind of detail that would really help with mapping those council estates and car parks. <http://www2.getmapping.com/Support/Aerial-Photography-Coverage-%281999-to-2003%29> At this detail level they will sell a 10km * 10km area for 1850 GBP. At least nine such areas would be required to cover inner London (the area of a 'Mini A-Z'). However, this price is for '1 to 10 hard copies' - I don't know how much they would want in exchange for providing photos that can be used in OSM. Since OSM is a competitor to People's Map, they might ask a lot. -- Ed Avis <[email protected]> _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
