[Proj] Re: Comments of tmerc, etmerc and ftmerc errors
Gerald I. Evenden
geraldi.evenden at gmail.com
Thu Jun 12 21:47:53 EDT 2008
On Thursday 12 June 2008 3:34 pm, strebe at aol.com wrote:
> Thanks for running these tests.
> Extended geographic range usage of any conformal projection is a
> contentious issue as any resultant grid system has sufficiently large scale
> errors as to make the Cartesian usage of the grid very questionable.
> This is true of any projection. It is true that conformal projections carry
> an inevitable disproportion of areas, but that's not related to scale
Are you saying scale and its associated error is not related to error of area?
Snyder (1395, p. 24) says "s=hk" where s is areal scale factor and h and k are
the meridian and parallel scale factors (in the orthogonal case).
I must be misinterpreting your words.(?)
> -- daan Strebe
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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