[Proj] projection of Madagascar

Gerald I. Evenden geraldi.evenden at gmail.com
Tue Apr 29 19:56:52 EDT 2008


Just to add to the confusion, libproj has always contained the +proj=labrd 
projection based upon a development by John Snyder.  An example script would 
be:

PROJ="+proj=labrd +ellps=intl +azi=18d54 +lat_0=18d54S +lon_0=46d26'13.95E 
+k_0=0.9995 +x_0=400000 +y_0=800000"
lproj $PROJ <<EOF
44d27'27.26 -16d11'23.28
EOF
lproj $PROJ <<EOF -o |lproj -Ii $PROJ
44d27'27.26 -16d11'23.28
EOF

that will yield upon execution:

188336.08       1098841.11
44d27'27.26"E   16d11'23.28"S

The Hotine oblique Mercator (omerc) is defnely not applicable.

Are there any known values known to be acceptable by Madagascar 
surveyors/government?
-- 
The whole religious complexion of the modern world is due
to the absence from Jerusalem of a lunatic asylum.
-- Havelock Ellis (1859-1939)  British psychologist


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