[postgis-users] Importing a shape file with NAD83 / Conus Albers

[Paul Ramsey]

Try running MorphFromESRI on the srs before generating the proj4?
P

On Mon, Aug 15, 2011 at 2:25 PM, Javier de la Torre
<jatorre at vizzuality.com> wrote:
> Hi all,
> I got a shapefile with a .prj file on it. I pasted the contents
> to http://prj2epsg.org and got that this http://prj2epsg.org/epsg/5070
> This srs does not seem to be in PostGIS so I am trying to add it. Now, the
> first thing I tried was sending it to spatialreference and I got
> this http://spatialreference.org/ref/sr-org/7178/
> But it does not seem to include the proj4text data needed for postgis to do
> transformations.
> I then tried loading it in OGR with Python doing this:
>>>> srs = osr.SpatialReference()
>>>> wkt = 'PROJCS["NAD83 / Conus Albers",   GEOGCS["NAD83",     DATUM["North
>>>> American Datum 1983",       SPHEROID["GRS 1980", 6378137.0, 298.257222101,
>>>> AUTHORITY["EPSG","7019"]],       TOWGS84[1.0, 1.0, -1.0, 0.0, 0.0, 0.0,
>>>> 0.0],       AUTHORITY["EPSG","6269"]],     PRIMEM["Greenwich", 0.0,
>>>> AUTHORITY["EPSG","8901"]],     UNIT["degree", 0.017453292519943295],
>>>> AXIS["Geodetic longitude", EAST],     AXIS["Geodetic latitude", NORTH],
>>>> AUTHORITY["EPSG","4269"]],   PROJECTION["Albers Equal Area",
>>>> AUTHORITY["EPSG","9822"]],   PARAMETER["central_meridian", -96.0],
>>>> PARAMETER["latitude_of_origin", 23.0],   PARAMETER["standard_parallel_1",
>>>> 29.5],   PARAMETER["false_easting", 0.0],   PARAMETER["false_northing",
>>>> 0.0],   PARAMETER["standard_parallel_2", 45.5],   UNIT["m", 1.0],
>>>> AXIS["Easting", EAST],   AXIS["Northing", NORTH],
>>>> AUTHORITY["EPSG","5070"]]'
>>>> srs.ImportFromWkt([wkt])
>>>>srs.ExportToProj4()
> But I get "ERROR 6: No translation for Albers Equal Area to PROJ.4 format is
> known."
> Anybody knows how can I get the PROJ4TEXT from this?
> Ideally what I would like is to inspect automatially a shapefile coming with
> a .prj file, try to find if it is in PostGIS and if not register the proj
> and import the data using shp2psql.
>
> Thanks for any advice,
> Javier.
>
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