libproj-dev - 9.4.1-1 main

Proj and invproj perform respective forward and inverse transformation
of cartographic data to or from Cartesian data with a wide range of
selectable projection functions (over 100 projections).
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Geod and invgeod perform geodesic (Great Circle) computations for
determining latitude, longitude and back azimuth of a terminus point given
a initial point latitude, longitude, azimuth and distance (direct) or the
forward and back azimuths and distance between an initial and terminus
point latitudes and longitudes (inverse).
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This package provides the PROJ development files.