[OSRS-PROJ] Swiss projections

Gerald I. Evenden gerald.evenden at verizon.net
Mon Mar 24 14:06:15 EST 2003

I finally have scrounged enough info from the net that pretty
well verifies that the projection known on the PROJ system
as somerc will do the CH1903 and CH1903+ grid systems. It also
appears that this projection was originally done by Rosenmund
with inferences that it may be what is called the "Rosenmund

This latter interpretation is still not verified.  The projection
uses our old friend from the Krovak and alternate stereographic:
conformal projection to the sphere now known as pj_gauss in the
modern libproj library.

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