[Proj] armenian coordinate system

beppe beppenapo at gmail.com
Sat Apr 3 09:13:34 PDT 2010


"Re-hi" Markus ;)
Excuse me, but I'm not so "competent" with gdal tool (and the
documentation does not help me!!!).
My epsg_tr.py -pretty_wkt 2555 output is:

PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 38",
    GEOGCS["Pulkovo 1942",
        DATUM["Pulkovo_1942",
            SPHEROID["Krassowsky 1940",6378245,298.3,
                AUTHORITY["EPSG","7024"]],
            AUTHORITY["EPSG","6284"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.01745329251994328,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4284"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",114],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",38500000],
    PARAMETER["false_northing",0],
    AUTHORITY["EPSG","2555"],
    AXIS["Y",EAST],
    AXIS["X",NORTH]]

How to add towgs84?

At this moment the best result is epsg:2498.

> But I could generate it with a GDAL tool:
> 
> epsg_tr.py -pretty_wkt 2555
> PROJCS["Pulkovo 1942 / 3-degree Gauss-Kruger zone 38",
>     GEOGCS["Pulkovo 1942",
>         DATUM["Pulkovo_1942",
>             SPHEROID["Krassowsky 1940",6378245,298.3,
>                 AUTHORITY["EPSG","7024"]],
>             TOWGS84[23.9,-141.3,-80.9,-0,0.37,0.85,-0.12],
>             AUTHORITY["EPSG","6284"]],
>         PRIMEM["Greenwich",0,
>             AUTHORITY["EPSG","8901"]],
>         UNIT["degree",0.01745329251994328,
>             AUTHORITY["EPSG","9122"]],
>         AUTHORITY["EPSG","4284"]],
>     UNIT["metre",1,
>         AUTHORITY["EPSG","9001"]],
>     PROJECTION["Transverse_Mercator"],
>     PARAMETER["latitude_of_origin",0],
>     PARAMETER["central_meridian",114],
>     PARAMETER["scale_factor",1],
>     PARAMETER["false_easting",38500000],
>     PARAMETER["false_northing",0],
>     AUTHORITY["EPSG","2555"],
>     AXIS["X",NORTH],
>     AXIS["Y",EAST]]
> 
> @Beppe: can you try this?
> 
> Hope this helps,
> Markus
> 




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