[GRASSLIST:4919] Re: Problems with importing polar data

Morten Hulden morten at ngb.se
Sat Nov 9 15:56:25 EST 2002

On Sat, 9 Nov 2002, Morten Hulden wrote:

> If proj does not have built-in default values for k0, x0 and y0 for this
> projection then src/libes/geo_init.c needs patching in order to add
> k-factor, false easting and northing.

I checked by running external proj with -V: Looks like proj really uses
k_0=0.9994, x_0=2000000 and y_0=2000000 as default values for UPS

So patching geo_init.c is strictly not necessary and would only result in
a PROJ_INFO that reflects the values that proj would use anyway.

But when running g.setproj it's important to give latitude=90 or -90. 55N 
for this projection does not make sense.

Morten Hulden

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