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

[Carl Godkin]

On Sat, Jul 11, 2009 at 3:28 AM, Hermann Peifer <peifer at gmx.eu> wrote:

> Carl Godkin wrote:
> > On Fri, Jul 10, 2009 at 12:26 PM, Clifford J Mugnier <cjmce at lsu.edu>
> wrote:
> >
> >>  April 2008 issue of my *Grids and Datums* column is on *Costa Rica*.
>  It
> >> can be downloaded from:
> >>
> >> www.ASPRS.org/resources/grids
> >>
> >>
> >
> >
> > Dr. Mugnier's paper uses  False Easting = 271,820.522 as well, so I
> believe
> > this is a bug in the PROJ.4 nad/world file.
> >
> > Thanks,
> >
>
> BTW: most results from a random Internet search on 'costa rica norte
> 271820.522' indicate that this is the False Northing, rather than the False
> Easting value.
>
> The country's Instituto Geográfico Nacional also mentions 271820.522 as the
> FN value, see page 3 at http://www.mopt.go.cr/ign/documentos/Lambert.pdf
>


Yes, you're right.  I just copied a typo out of Dr Mugnier's paper without
thinking about
it.  This value is apparently very slippery.  Our customer had this as FN
also.

Thanks for pointing that out,

carl
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