I need to figure out how to convert my X/Y-coordinates to longitude and latitude.
I do not need the exact conversion, just an approximate so I can plot it in a mapping API. I managed to estimate the following X/Y to Long/Lat:
(x, y) = 24050, 123783.3333 -> (long, lat) = (122.98, 24.46) (x, y) = 24216.6667, 123933.3333 -> (long, lat) = (122.985339, 24.46041)
Can I somehow use these to come up with a formula to convert the other X/Y points?
I found another link that does what I want, but I cannot extract the formula: http://www.whoi.edu/marine/ndsf/cgi-bin/NDSFutility.cgi?form=0&from=XY&to=LatLon
In the above link, I specify the origin of X/Y in Lat/Long coordinates, and it was able to convert X/Y to Lat/Lang.