Thx for the quick reply Martin,
I am willing to contribute a fix/improvement for this issue (while
contextually requesting a review from you :-)). I am going to open up a Jira
RFE.

Which source of information do you suggest to use as a reference for this
projection? I should have somewhere the (in)famous projection reference book
from USGS. Do you suggest something better (or easier :-))?

Thx a lot,
Simone.

-------------------------------------------------------
Eng. Simone Giannecchini
President /CEO GeoSolutions S.A.S.
Via Carignoni 51 
55041  Camaiore (LU) 
Italy

phone: +39 0584983027
fax:      +39 0584983027
mob:    +39 333 8128928 


http://www.geo-solutions.it

-------------------------------------------------------


-----Original Message-----
From: Martin Desruisseaux [mailto:[EMAIL PROTECTED] 
Sent: martedì 15 maggio 2007 0.22
To: Simone Giannecchini
Cc: [email protected]
Subject: Re: Question about Mercator_1SP

Simone Giannecchini a écrit :
> The projection is supposed to be Mercator_1SP for which I was
> referring to the following guide:
> http://remotesensing.org/geotiff/proj_list/mercator_1sp.html
> The discrepancy I found is that the provider for Mercator does not
> support a latitude_of_origin parameter whilst the above mentioned page
> requires it. I have to admit that I have not cheched the EPSG db yet.

The Geotools projection code is derived from Proj.4, and the above-cited
page said:

"PROJ.4 does not support a latitude of natural origin other than the
equator."

It may be easy to add this support in Geotools if we know what we are
supposed
to do with this latitude of origin. Is it just a latitude offset, like
"longitude of origin" is a longitude offset? If someone is up for
investigating
that we could fix.

        Martin


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