[Proj] Updated epsg file

Brian Peschel brianp at occinc.com
Thu Jan 26 09:45:23 PST 2006


> > >/ Any know where I can get an updated epsg file
/> > >/ (/usr/local/share/proj/epsg)?  I am using 4.4.9 with the US datum
/> > >/ extension (proj-4.4.9.tar.gz
/> > >/ <ftp://ftp.remotesensing.org/proj/proj-4.4.9.tar.gz> and
/> > >/ proj-datumgrid-1.3.zip
/> > >/ <ftp://ftp.remotesensing.org/proj/proj-datumgrid-1.3.zip>).  The epsg
/> > >/ file in my build directory is dated May 12, 2004.  Basically, I need to
/> > >/ get the values for epsg code of 102185 which I have seen support for in
/> > >/ other applications (like FME).
/> >
> > Brian,
> >/ Codes like 102185 are not real EPSG codes, they are
/> >/ ESRI extensions.  If you look at the nad/esri file you
/> >/ will find a translation of the ESRI coordinate system codes,
/> >/ but they seem to be somewhat out of date, since there is no
/> >/ 102185 in there.
/> 
> I found up-to-date ESRI IDs on the ESRI website.
> http://arcweb.esri.com/arcwebonline/services/pcs.htm
> (1.9 MB, 2901 entries.)
> Derived from this ESRI Projected Coordinate Systems file
> the 102185 ID:
> 
> 102185: NAD_1983_10TM_AEP_Resource
> PROJCS: NAD_1983_10TM_AEP_Resource
> GEOGCS: GCS_North_American_1983
> DATUM: D_North_American_1983
> SPHEROID: GRS_1980,6378137.0,298.257222101
> PRIMEM: Greenwich,0.0
> UNIT: Degree,0.0174532925199433
> PROJECTION: Transverse_Mercator
> PARAMETER: False_Easting,0.0
> PARAMETER: False_Northing,0.0
> PARAMETER: Central_Meridian,-115.0
> PARAMETER: Scale_Factor,0.9992
> PARAMETER: Latitude_Of_Origin,0.0
> UNIT: Meter,1.0
>  
> Is this the one?

That is the conversion I need and it matches the data I have.  How do I incorporate
this into PROJ.4?  If I look the /usr/local/proj/esri file, they are formated like

# Anguilla 1957 / British West Indies Grid
<2000> +proj=tmerc +lat_0=0 +lon_0=-62 +k=0.999500 +x_0=400000 +y_0=0 +ellps=clr

which is not the same format as the link Oscar provided.


-- 
Brian Peschel





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