Alan, Alan Mintz wrote: > Is anyone working on a solution to the poor Yahoo image quality in JOSM > (compared with Potlatch, browser, etc.)? This pic shows the striking diff > between the same area at the same scale in JOSM and in Potlatch: > http://sites.google.com/site/am909geo/osm-1/BadYahooImagery.jpg?attredirects=0
Interesting. When I call up this area in JOSM, or indeed using any standard "Yahoo Map API" example, the image URLs that are retrieved look like this: http://maps1.yimg.com/ae/ximg?v=1.9&t=a&s=256&x=22784&y=13251&z=1 That's the best zoom it gives you (z=1, smaller being better). So JOSM plays according to the rules of the Javascript API. However using Potlatch, which presumably uses a Flash API, the map tiles requested look like this: http://us.maps3.yimg.com//aerial.maps.yimg.com/img?md=1204827325&x=45569&y=26502&z=19&r=1&v=1.7&t=a and have a better resolution - z=19, higher being better in this scheme. The key to fixing this in JOSM would be finding a way to get the high-res imagery through the Javascript interface. So if anyone would manage to modify any of the examples on http://developer.yahoo.com/maps/ajax/ to actually give you the high-res image then we could use that knowledge to improve JOSM. (I'm cc'ing this to the JOSM-dev list.) - We are not allowed to cheat our way out of the Javascript API, sadly, which means we cannot retrieve the tiles directly even if we knew how to. Bye Frederik -- Frederik Ramm ## eMail [email protected] ## N49°00'09" E008°23'33" _______________________________________________ josm-dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/josm-dev
