Module:Ordnance Survey coordinates/sandbox: Difference between revisions

Revision as of 19:09, 16 December 2023

Revision as of 19:14, 16 December 2023

Line 324:

local N0ir=250000.0

-- semi-major axis (in line to equator) 1.000035 is yer scale @ central meridian

local air=6377340IEglobe.189semimajor*F0ir

--semi-minor axis (in line to poles)

local bir=6356034IEglobe.447semiminor*F0ir

-- flatness=a1-b1/(a1 + b1)

local n1ir=0.001673220384152058651484728058385228837777

-- first eccentricity squared=2*f-f^2 where f=(a1-b1)/a1

local e2ir=0IEglobe.006670540293336110419293763349975612794125ecc

local k=(n-N0ir)/air+lambda0ir/dr

local nextcounter=0