Small tools for GIS calculations, written by Ákos Halmai @ University of Pécs Faculty of Sciences, Department Of Geography and Earth Sciences
Sources of applied alogorithms:
Karl Olsen, 2019: Accurate Conversion of Earth-Fixed Earth-Centered Coordinates to Geodetic Coordinates HAL Id: hal-01704943 https://hal.archives-ouvertes.fr/hal-01704943v2
MÉM Országos Füldügyi és Térképészeti Hivatal 1975: Vetületi szabályzat az egységes országos vetületi rendszer alkalmazására. Lechner Tudásközpont, https://lechnerkozpont.hu/data/sites/default/files/doc/iny/szabalyzatok/A1_vetuleti_szabalyzat.pdf
Gade, Kenneth (2010). "A non-singular horizontal position representation" (PDF). The Journal of Navigation. Cambridge University Press. 63 (3): 395–417. doi:10.1017/S0373463309990415 https://www.cambridge.org/core/journals/journal-of-navigation/article/abs/nonsingular-horizontal-position-representation/9DA5AFB5EC91CFF0E755C18BBAA37171
See LICENCE file for term & conditions.