Im trying to define the srs EPSG 3857 inside Terrasolid sofware. I ran into a problem because the definition of the reference ellipsoid is given with a major axis and inverse flatening, not via both axis. Since flatening of a sphere is 0, inverse of a zero is infinite and i cant input that. Doesnt work with a 0, 1 or some very high value either. Any thoughts on how to define it, and if its even possible?
The issue is, a sphere (reference body for EPSG 3857) is a kind of ellipsoid that has no flattening, hence you cannot define 1/flatening. Im looking for a workaround in this particular software, or just a confirmation that its in fact impossible to do at this point, since i cannot define datum that involves a sphere as a reference body.
Heres a screenshot of the datum input screen: