[SPAM] - Re: [OSRS-PROJ] Error projecting Geographic to UPS - Email found in subject

[Frank Warmerdam]

Charles D. Van Dusen wrote:
>  Hi Frank
> 
> Thanks for the reply.
> 
> This from the proj manual:
> 
> Universal Polar Stereographic (UPS) Projection
> Usage and options: +proj=ups +south
> The ups projection is a special case polar aspect of the Stereographic
> projection
> designed to cover the regions where 
  84 N or 
  80 S. The internal
> Stereographic
> parameters are fixed at k0 = 0.994, 0 = 0, x0 = y0 = 2, 000, 000m, and
> 
0 is either 90 N when +south is not specified or 90 S when +south is
> specified.
> Elliptical parameters must be used (either proj default or entered as
> option). Also
> see the Universal Transverse Mercator (utm) projection (p. 12).
> 
> So, I presumed that using the option -o"proj=ups" would suffice.

Charlie,

Doh!  You are right. I should have looked before speaking.

I tried "proj +proj=ups" at the commandline and it worked fine, but
"proj +proj=ups +no_defs" failed since there was no ellipse definition.
Try something like "+proj=ups +ellps=WGS84" as your definition instead.

Best regards,

-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent


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