The orthographic projection is a projection from infinity that preserves neither
area nor angle. It is given by
where latitude , longitude , and
The inverse transformations are
where
and the two-argument form of the inverse tangent
function is best used for this computation.
See also Stereographic Projection ,
Vertical Perspective Projection
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References Snyder, J. P. Map Projections--A Working Manual. Referenced on Wolfram|Alpha Orthographic Projection
Cite this as:
Weisstein, Eric W. "Orthographic Projection."
From MathWorld https://mathworld.wolfram.com/OrthographicProjection.html
Subject classifications
is the latitude, 
is the longitude, and 
and 
are reference longitudes and latitudes, respectively.
