| -ocentric latitude (angle between the equatorial plane and the point
on the ellipsoid)
Actually: angle between the equatorial plane and the vector from the
center of the ellipsoid to the point of interest
And we have actually a nice schema at
https://proj.org/en/9.3/operations/conversions/geoc.html :-)
--
http://www.spatialys.com
My software is free, but my time generally not.
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