[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.
is
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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