The projection you use is going to change everything, but this will work assuming a Mercator projection: <html> <head> <script language=”Javascript”> var dot_size = 3; var longitude_shift = 55; // number of pixels your map’s prime meridian is off-center. var x_pos = 54; var y_pos = 19; var map_width = 430; var map_height = 332; … Read more
I ended up finding java code from IBM that solved it: http://www.ibm.com/developerworks/java/library/j-coordconvert/index.html Just for reference, here is my python implementation of the method I needed: import math def utmToLatLng(zone, easting, northing, northernHemisphere=True): if not northernHemisphere: northing = 10000000 – northing a = 6378137 e = 0.081819191 e1sq = 0.006739497 k0 = 0.9996 arc = northing … Read more
I wrote a function which does exactly what you were looking for. I know it’s a bit late, but maybe there are some other people interested in. You need a map which is a mercator projection and you need to know the lat / lon positions of your map. You get great customized mercator maps … Read more