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Could you explain the relationship between Authalic Latitude and Equal
Area projections? There is an article by John Snyder at
<a class="moz-txt-link-freetext" href="http://www.jstor.org/stable/2562645?seq=1">http://www.jstor.org/stable/2562645?seq=1</a>, but it's a bit above my
mathematical head.<br>
<br>
Jan<br>
<br>
On 15-2-2010 18:01, Clifford J Mugnier wrote:
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cite="mid:B597ADFC46B67741B18EA6AA13613FF7EC29EF@email002.lsu.edu"
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<title>Re: [Proj] Standard projection for Mediterranean basin</title>
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<div dir="ltr"><font color="#000000" face="Times New Roman" size="2">So?</font></div>
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<div dir="ltr"><font size="2">Keep the parameters and just use
Authalic Latitude.</font></div>
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<div dir="ltr"><font size="2">Easy.</font></div>
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<div><font color="#000000" face="Times New Roman" size="2"><span
style="font-size: 10pt;">Clifford J. Mugnier, C.P., C.M.S.<br>
Past National Director (2006-2008),<br>
Photogrammetric Applications Division<br>
American Society for Photogrammetry and Remote Sensing <br>
and <br>
Chief of Geodesy,</span></font></div>
<div><font color="#000000" face="Times New Roman" size="2"><span
style="font-size: 10pt;"><span
style="font-size: 10pt; color: black; font-family: 'Times New Roman','serif'; font-variant: small-caps;">Center
for GeoInformatics</span></span></font></div>
<div><font color="#000000" face="Times New Roman" size="2"><span
style="font-size: 10pt;"><span
style="font-size: 10pt; color: black; font-family: 'Times New Roman','serif'; font-variant: small-caps;"></span>Department
of Civil Engineering <br>
Patrick F. Taylor Hall 3223A<br>
<strong>LOUISIANA STATE UNIVERSITY</strong> <br>
Baton Rouge, LA 70803<br>
Voice and Facsimile: (225) 578-8536 [Academic] <br>
Voice and Facsimile: (225) 578-8925 [Research] <br>
Honorary Life Member of the <br>
Louisiana Society of Professional Surveyors <br>
Member Emeritus of the ASPRS <br>
Member of the Americas Petroleum Survey Group<br>
======================================================<br>
</span><a moz-do-not-send="true"
href="https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/exchweb/bin/redir.asp?URL=https://email.lsu.edu/
exchweb/bin/redir.asp?URL=https://email.lsu.edu/%20exchweb/bin/redir.asp?URL=https://email.l"
target="_blank"><span style="font-size: 10pt;">http://www.asprs.org/resources/GRIDS/</span></a><br>
<span style="font-size: 10pt;">======================================================</span></font></div>
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<hr tabindex="-1">
<font face="Tahoma" size="2"><b>From:</b>
<a class="moz-txt-link-abbreviated" href="mailto:proj-bounces@lists.maptools.org">proj-bounces@lists.maptools.org</a> on behalf of Gerald I. Evenden<br>
<b>Sent:</b> Mon 15-Feb-10 08:30<br>
<b>To:</b> PROJ.4 and general Projections Discussions<br>
<b>Subject:</b> Re: [Proj] Standard projection for Mediterranean basin<br>
</font><br>
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<p><font size="2">On Sunday 14 February 2010 11:46:30 pm Clifford J
Mugnier wrote:<br>
> From 1925 to 1946, there was a "British Grid" used by the Allied
Forces in<br>
> the Mediterranean. The British Army (GSGS) established the
"Mediterranean<br>
> Zone" for the secant Lambert Conical Orthomorphic Projection where
the<br>
> central meridian was 29° East of Greenwich, and the latitude of
origin was<br>
> 39° 30' N, the scale factor at origin was 0.99906, the False
Easting was<br>
> 900 km, and the False Northing was 600 km.<br>
><br>
> See my column in PE&RS for December of 2002 on Greece.<br>
><br>
> Clifford J. Mugnier, C.P., C.M.S.<br>
...<br>
<br>
I had the inference that the request was for an equal-area
projection---a mode<br>
that I consider preferable for thematic purposes.<br>
<br>
--<br>
The whole religious complexion of the modern world is due<br>
to the absence from Jerusalem of a lunatic asylum.<br>
-- Havelock Ellis (1859-1939) British psychologist<br>
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