Hi all, in this document
http://www.faa.gov/documentLibrary/media/Order/8260.54A.pdf in Appendix 2
there are lots of calculations and algorithms for solving some useful
problems when working with non projected data e.g. EPSG 4326

There is also this github repo https://github.com/pkohut/GeoFormulas and
http://wired2code.wordpress.com/2010/07/14/wgs84-ellipsoid-calculations/

Apparently they are written in C and I am wondering if maybe QGIS could
benefit from it, I would really want to port this to python also but I am
still very new to programming to actually achieve this

Anyway I hope someone with more skills than me can review this and maybe see
if this can be used for QGIS

Regards



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