[OSRS-PROJ] Units used in Expressing Projections

Gerald Evenden gerald.evenden at verizon.net
Mon Jul 29 21:37:39 EDT 2002

Yes, yes.  I complaining to myself about the several problems with conversion
to the proj script I elided over the tan/sec definition.  Indeed, lat_1=  k_0!=1.
secant form.

Somewhere I believe there is a formulae to convert lat_1 k_0 to double
parallel form and converse.

Clifford J Mugnier wrote:

> Gentlemen,
> The French use the secant case for Lambert Conformal Conics in France and
> Corsica.  The use of a Latitude of Origin and a Scale Factor at Origin is
> not a "Tangent case" unless the scale factor at origin is 1.0.  The one
> latitude they quote is NOT a standard parallel.

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