2009/1/13 Carl Johansson <[email protected]>: > > While no responses to > http://www.nabble.com/Re%3A-Getting-UTM-coordinates-from-Mapnik-Viewer-td21370149.html > Getting UTM coordinates from Mapnik Viewer here on this list I've been > trying to figure out what the coordinates I get from the mapnik viewer. > > Now I can turn degrees and radians into UTM, MGRS, whatever.
UTM (Universal Transverse Mercator ) needs some zone number (??). But I don't know what is MGRS stands for, could you let me know. The coordinates > I get however, look similar to what I found in > https://lists.berlios.de/pipermail/mapnik-users/2008-December/001431.html > Problems With Raster Data . > >> Corner Coordinates: >> Upper Left ( 1114078.557, 6054943.745) ( 10d 0'28.58"E, 47d41'13.28"N) >> Lower Left ( 1114078.557, 5995663.745) ( 10d 0'28.58"E, 47d19'38.31"N) >> Upper Right ( 1168438.557, 6054943.745) ( 10d29'46.54"E, 47d41'13.28"N) >> Lower Right ( 1168438.557, 5995663.745) ( 10d29'46.54"E, 47d19'38.31"N) >> Center ( 1141258.557, 6025303.745) ( 10d15'7.56"E, 47d30'26.91"N) > > How do I get these guys into degrees or radians? More importantly, what are > they? (yes, still new to GIS but I'm sure working on it) They look like Mercator ( in meters) coordinates. You can verify this with simple Python script: from mapnik import * p = Projection("+proj=merc +datum=WGS84") # or for spherical Mercator (OSM,GMap etc) p = Projection("+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs +over") # re-project to WGS84 Geographical coordinate system (Lon/Lat) p.inverse(Coord(1114078.557, 6054943.745)) >>> Artem > > Carl > -- > View this message in context: > http://www.nabble.com/Coordinates-in-degrees%2C-radians-and...-what-else--tp21436631p21436631.html > Sent from the Mapnik - Users mailing list archive at Nabble.com. > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
