Forgive me for being new to cartography - but I thought I'd ask experts for a pointer. I am unsure of the proper terminology even, but, I believe that what I need to do is convert coordinates from SPCS to latitude, longitude.
What I am looking for is a mathematical formula for the conversion. I need to write a program to do this but was unable to find a formula online. The only example of code that I was able to find was written in 1986, in Fortran - so - that's about as cryptic to me as (I'm sure) I sound to you in my vague description of data.
This is the information about the system as I could determine:
- 1927 North American Datum (NAD)
- Maryland State Plane 10,000 foot grid values
There is a website that has a web version of the mentioned fortran program, and it's located at ngs.noaa.gov
Northing = 458000.000
Easting = 933000.000
Zone = 1900
Lat 39 5 24.05008
Lon 76 31 53.13491
I hope that this example explains what I am looking for. Is there an online resource explaining these formulas that anyone could point me to?
Thanks for your time.