<div>Dear all, thank you for the many contributions to this discussion. Some background:<br></div><div><br></div><div>If
you have not done so, please watch the address by Calvin Metcalf on
Proj [0]. From his reflections and the discussion that ensued it became
apparent to me that presently there is no CRS/projection registry in the
public domain under maintenance. Take the EPSG registry for instance:
not exactly open and does not provide essential information, particular
on projections. I myself have struggled recently to find information in
the public domain on recent projections such as Eckart's or Snyder's.
Digging into scientific publications is pretty much the only way to go
(something not every one can do). The original message by Manfred was
just a catalyst to this idea of an OSGeo sponsored/sanctioned registry.<br></div><div><br></div><div>My
idea is to use GitHub and its pull request mechanism as way to force
human verification of contributions. Contrary to other registries, this
would be a completely transparent process. The end result would be a
structure of MD files hooked up with ReadTheDocs. It just happens the
Proj4 documentation that Even linked to [1] is already a step in this
direction.<br></div><div><br></div><div>I agree that any new initiative
should not overlap with ongoing projects - in particular since Proj4 is
an OSGeo project. Therefore the route action right now would be to
contribute to the Proj4 documentation, as Even suggests.<br></div><div><br></div><div>There
is though a major issue to solve, the Proj4 handles. They are ambiguous
in some cases (as Calvin reports) and do not cover all projections out
there. So, there is some hard rock to break.<br></div><div><br></div><div>Regards,<br></div><div><br></div><div>LuÃs<br></div><div><br></div><div><br></div><div>[0] <a href="http://ftp5.gwdg.de/pub/misc/openstreetmap/FOSS4G-2016/foss4g-2016-1163-nobody_cares_about_your_datum_or_the_kleinstaaterei_of_spatial_reference_systems-hd.webm">http://ftp5.gwdg.de/pub/misc/openstreetmap/FOSS4G-2016/foss4g-2016-1163-nobody_cares_about_your_datum_or_the_kleinstaaterei_of_spatial_reference_systems-hd.webm</a><br></div><div><br></div><div>[1] <a href="http://proj4.org/projections/index.html">http://proj4.org/projections/index.html</a> <br></div>