[Proj] Costa Rica Norte in nad/world definition...

Clifford J Mugnier cjmce at lsu.edu
Fri Jul 10 14:26:39 EST 2009

April 2008 issue of my Grids and Datums column is on Costa Rica.  It can be downloaded from:
C. Mugnier


From: proj-bounces at lists.maptools.org on behalf of Carl Godkin
Sent: Fri 10-Jul-09 13:07
To: proj at lists.maptools.org
Subject: [Proj] Costa Rica Norte in nad/world definition...


The PROJ.4 file nad/world contains a definition for the "Costa Rica Norte" coordinate
system (costa-n) that may have a typo.

The false northing is listed in this file (in current SVN) with 

but I believe that it's really supposed to be y_0=271820.522 instead.

We received some data for this coordinate system from a customer and it uses
this definition.  With the "corrected" numbers, the customer's locations in
geographic and projected coordinates match when converted using "proj."

However, I can't find another source for it on the web anywhere to confirm.

Does someone have a way to check this out?


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