[Mapserver-users] ESRI .prj and PROJ epsg

Richard Greenwood Rich at GreenwoodMap.com
Tue Jun 24 13:53:51 EDT 2003


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At 01:19 PM 6/24/2003 -0400, you wrote:

>Is anyone aware of a means to translate ESRI's .prj files and find the
>equivalent PROJ epsg entry?
>
>eg:
>GEOGCS["GCS_North_American_1983",
>DATUM["D_North_American_1983",
>SPHEROID["GRS_1980",6378137,298.257222101]],
>PRIMEM["Greenwich",0],
>UNIT["Degree",0.0174532925199433]]
>
>How do I know what to assign to variables like
>+proj=
>+lat_1=
>+lat_2=
>+lat_0=
>+lon_0=
>+x_0=
>+y_0=
>+lonc=
>+alpha=
>+k=
>+ellps=
>+datum=
>+units=
>+no_defs
>no_defs
>
>THANKS!
>Kieran


There are a lot of ways, but a quick and dirty way is to use the 
spatial_ref_sys.sql table that is a part of postgis.

Rich


Richard W. Greenwood, PLS
Greenwood Mapping, Inc.
Rich at GreenwoodMap.com
(307) 733-0203
http://www.GreenwoodMap.com 

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