Getting UTM and stereographic projections to overlap
Frank Warmerdam
warmerdam at POBOX.COM
Mon Oct 31 07:41:22 PST 2005
On 10/31/05, Trond Michelsen <trondmm-mapserver at crusaders.no> wrote:
> The stereographic point layer and all basemaps:
>
> PROJECTION
> "proj=stere"
> "lat_0=90"
> "lon_0=0"
> "lat_ts=60"
> "a=6371000"
> "b=6371000"
> "units=m"
> END
>
> The UTM33-point layer and shapefile of Norway:
>
> PROJECTION
> "proj=utm"
> "zone=33"
> "ellps=WGS84"
> "datum=WGS84"
> "units=m"
> END
Trond,
I have you considered misrepresenting the UTM data as
being on the spherical earth as well to avoid PROJ.4 trying
to apply an ellipsoid translation?
eg.
PROJECTION
"proj=utm"
"zone=33"
"a=6371000"
"b=6371000"
"units=m"
END
Best regards,
--
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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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