Convert Latitude & Longitude (Decimal) to Easting & Northing
Posted on 2004-04-23
I need to convert Longitude and Latitude to Easting and Northing for locations in Australia, so our mapping engine can display them on a map. While the engine supports a single location using Latitude and Longitude, it requires eastings and northings if I want it to display more than one location at the same time.
I want to write a PHP script which can convert latitude to northing, and longitude to easting.
The script will be easy if I know the mathematical formula, I guess. Most of the places on the web that show the formula use complex looking squiggles and symbols, and I cant understand them, as i'm no mathemetician. Can anyone show me the equation to do this? I think it should be easy...