[Proj] Gauss-Schreiber: the continuing story
Gerald I. Evenden
geraldi.evenden at gmail.com
Thu Jun 26 15:18:19 EDT 2008
Sbyder, in "Flattening the Earth", p. 162: "Jean Laborde, chief of the Service
Geographique of Madagascar, presented this version in 1926 ... " Unless its
his ghost, it must be another Laborde. ;-)
On Thursday 26 June 2008 2:47 pm, support.mn at elisanet.fi wrote:
> Just noticed that:
> > Laborde's Madegascar efforts were circa 1929
> Wikipedia is telling that Jean Laborde lived (16 October 1805 in Auch -
> 27 December 1878 in Madagascar).
> But is this some other person?
> Regards: Janne
> > "The Gauss-Schreider projection was developed about 1880 and used for the
> > Prussian land survey. It consists of a double conformal transformation
> > of the ellipse onto the sphere and then of the sphere onto the plane
> > using the spherical transverse Mercator projection. The central merdian
> > varies in scale."
> > And, of course, we have the IGN claim with Laborde in NT/G 73. I am not
> > sure what the timing was but because Laborde's Madegascar efforts were
> > circa 1929 then the best he can probably claim is rediscovering the
> > projection. The Madagascar should not be confused with the NT/G 73 and I
> > am only using it as a reference to one period where we know he was
> > active as I do not have his birth-death dates.
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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