Rajeev,
I noticed the other answers you have received on the list
so far, and they are correct to a point. Within the
apparent context of your question about a projection found
in an atlas, you have your answer.
However, in 19th century Europe and early to middle 20th
century Middle East (and most French colonies), the Bonne
Projection means something quite different. When working
with Geodetic Grid systems it is an ellipsoidal
implementation that is NOT the same as using the spherical
equations. Geographers will occasionally use ellipsoidal
Authalic latitude in thematic applications with the
spherical equations. (See the late Prof. Karl Rinner in
"Zeitschritt der Vermessungswessen," back in 1932 - I
forgot which issue.)
The February, 2000 issue of "Photogrammetric Engineering
and Remote Sensing" will feature my column on Grids and
Datums for the Republic of Madagascar. In that, I discuss
the Bonne projection as used in Madagascar and why General
Jean Laborde hated it for geodetic work. You can find
other countries in past issues of my column at:
http://www.asprs.org/resources.html
If MI supports it, I would expect it to be the thematic
spherical implementation and NOT the special ellipsoidal
power series once used for geodetic National Grid systems.
Clifford J. Mugnier ([EMAIL PROTECTED])
The Topographic Engineering Laboratory
Department of Civil and Environmental Engineering
UNIVERSITY OF NEW ORLEANS
New Orleans, Louisiana 70148
Voice and Facsimilie: (504) 280-7095
Clifford J. Mugnier ([EMAIL PROTECTED])
The Topographic Engineering Laboratory
Department of Civil and Environmental Engineering
UNIVERSITY OF NEW ORLEANS
New Orleans, Louisiana 70148
Voice and Facsimilie: (504) 280-7095
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On Sunday, 16 January, 2000 10:29 AM, Dr Rajeev saraf
[SMTP:[EMAIL PROTECTED]] wrote:
> Hi:
> has any body heard of bonne projection. i came across it
> in an atlas. does mi support it. if so, which option in
> projection file would do it.
> --
> rajeev saraf
> << File: ATT00032.html >>
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