[gdal-dev] Problem with GDAL data folder in 1.9

Etienne Tourigny etourigny.dev at gmail.com
Tue Apr 10 16:04:33 EDT 2012


Your email is slightly contradictory, you say you use data from 1.8 in
both tests.

you definitely should not be mixing gdal version with associated data.
You chould be getting correct results when not mixing them, is that
the case?

Can you try using 'gdalsrsinfo EPSG:26943' with gdal 1.9 and
associated data dir?

Here a straight install from ubuntugis reveals a correct WKT:
gdalsrsinfo EPSG:26943

PROJ.4 : '+proj=lcc +lat_1=38.43333333333333 +lat_2=37.06666666666667
+lat_0=36.5 +lon_0=-120.5 +x_0=2000000 +y_0=500000 +ellps=GRS80
+towgs84=0,0,0,0,0,0,0 +units=m +no_defs '

OGC WKT :
PROJCS["NAD83 / California zone 3",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            TOWGS84[0,0,0,0,0,0,0],
            AUTHORITY["EPSG","6269"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["standard_parallel_1",38.43333333333333],
    PARAMETER["standard_parallel_2",37.06666666666667],
    PARAMETER["latitude_of_origin",36.5],
    PARAMETER["central_meridian",-120.5],
    PARAMETER["false_easting",2000000],
    PARAMETER["false_northing",500000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    AUTHORITY["EPSG","26943"]]




On Tue, Apr 10, 2012 at 4:50 PM, Ivan Lucena <ivan.lucena at pmldnet.com> wrote:
> Hi There,
>
> I am getting some weird results from a simple geotiff file and it seems to be a problem with the data folder.
>
> If I run gdalinfo using GDAL 1.9 or 1.8 with the data folder installed from 1.8 the WKT comes with no EPSG Authority code:
>
> D:\> set GDAL_DATA=D:\GDAL-1.9\data
> D:\> gdalinfo sf1.gtif
> PROJCS["NAD_1983_StatePlane_California_III_FIPS_0403",
>    GEOGCS["GCS_North_American_1983",
>        DATUM["North_American_Datum_1983",
>            SPHEROID["GRS_1980",6378137,298.257222101]],
>        PRIMEM["Greenwich",0],
>        UNIT["Degree",0.0174532925199432955]],
>    PROJECTION["Lambert_Conformal_Conic_2SP"],
>    PARAMETER["False_Easting",2000000],
>    PARAMETER["False_Northing",500000],
>    PARAMETER["Central_Meridian",-120.5],
>    PARAMETER["Standard_Parallel_1",37.06666666666667],
>    PARAMETER["Standard_Parallel_2",38.43333333333333],
>    PARAMETER["Latitude_Of_Origin",36.5],
>    UNIT["Meter",1]]
>
> Even tough listgeo shows:
>
> PCS = 26943 (NAD83 / California zone 3)
> Projection = 10433 (SPCS83 California zone 3 (meters))
> Projection Method: CT_LambertConfConic_2SP
>   ProjFalseOriginLatGeoKey: 36.500000 ( 36d30' 0.00"N)
>   ProjFalseOriginLongGeoKey: -120.500000 (120d30' 0.00"W)
>   ProjStdParallel1GeoKey: 38.433333 ( 38d26' 0.00"N)
>   ProjStdParallel2GeoKey: 37.066667 ( 37d 4' 0.00"N)
>   ProjFalseEastingGeoKey: 2000000.000000 m
>   ProjFalseNorthingGeoKey: 500000.000000 m
> GCS: 4269/NAD83
> Datum: 6269/North American Datum 1983
> Ellipsoid: 7019/GRS 1980 (6378137.00,6356752.31)
> Prime Meridian: 8901/Greenwich (0.000000/  0d 0' 0.00"E)
> Projection Linear Units: 9001/metre (1.000000m)
>
> But if I use gdalinfo 1.8 or 1.9 with the data folder from 1.8 the WKT appears to be better.
>
> D:\> set GDAL_DATA=D:\GDAL-1.8\data
> D:\> gdalinfo sf1.gtif
> PROJCS["NAD83 / California zone 3",
>    GEOGCS["NAD83",
>        DATUM["North_American_Datum_1983",
>            SPHEROID["GRS 1980",6378137,298.2572221010002,
>                AUTHORITY["EPSG","7019"]],
>            AUTHORITY["EPSG","6269"]],
>        PRIMEM["Greenwich",0],
>        UNIT["degree",0.0174532925199433],
>        AUTHORITY["EPSG","4269"]],
>    PROJECTION["Lambert_Conformal_Conic_2SP"],
>    PARAMETER["standard_parallel_1",38.43333333333333],
>    PARAMETER["standard_parallel_2",37.06666666666667],
>    PARAMETER["latitude_of_origin",36.5],
>    PARAMETER["central_meridian",-120.5],
>    PARAMETER["false_easting",2000000],
>    PARAMETER["false_northing",500000],
>    UNIT["metre",1,
>        AUTHORITY["EPSG","9001"]],
>    AUTHORITY["EPSG","26943"]]
>
> The authority code are correct and standard_parallel_1, standard_parallel_2 are identical to listgeo information.
>
> I got this files from the SVN branch 1.8 and 1.9 and I compiled and install it myself but I also tried that same steps with the OSGeo4W environment and got the same results.
>
> Does it means that there is something wrong with the data folder in 1.9 or is that part of a new approach of dealing with that particular kind of projection?
>
> Regards,
>
> Ivan
>
>
>
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