Bessel's paper on geodesics; Cassini-Soldner projection

[Karney, Charles]

(1) Rod Deakin of RMIT and I have translated Bessel's paper on
geodesics,

    F. W. Bessel, Astron. Nachr. 4 (86), 241-254 (1826).

and posted the result at

    http://arxiv.org/abs/0908.1824

(2) My library of geographic routines

    http://charles.karney.info/geographic

now includes a C++ class for the Cassini-Soldner projection, a
transverse cylindrical equidistant projection.  This and the azimuthal
equidistant projection are defined in terms of the Geodesic class and
will given accurate (error 10 nm to 20 nm) results for the whole earth.
The projection routines also return the scale in the non-equidistant
direction which is computed in terms of the reduced length of the
geodesics.

I include a small utility program EquidistantTest to provide a interface
to these projections.

--
Charles Karney <[hidden email]>
Sarnoff Corporation, Princeton, NJ 08543-5300

Tel: [phone]
Fax: [phone]
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