Hi,

On Mon, Dec 2, 2019 at 9:49 AM Zoltan Szecsei <zolt...@geograph.co.za> wrote:
>
> Hi,
> I'm using EPSG 2932 and QGIS etc all are OK with it.
>
> I have installed everything using OSGeo4W64, so how come Grass does not
> use the same projections database (as QGis etc)?
> (and please can I have a pointer as to how to introduce EPSG 2932 to
> Grass 7.8.1)
>
> Thanks and regards,
> Zoltan
>
> ******** Running against:
> D:\GDBroad_tiles\shp_road_poly_few\23103770_road_poly.shp
> WARNING: Datum <Qatar_National_Datum_1995> not recognised by GRASS and
> no parameters found

Is it possible that you have a PROJ software version mixup?

I tried on my Linux box:

grass78 -c epsg:2932 ~/grassdata/test_2932
Starting GRASS GIS...
Creating new GRASS GIS location <test_2932>...
Cleaning up temporary files...

          __________  ___   __________    _______________
         / ____/ __ \/   | / ___/ ___/   / ____/  _/ ___/
        / / __/ /_/ / /| | \__ \\_  \   / / __ / / \__ \
       / /_/ / _, _/ ___ |___/ /__/ /  / /_/ // / ___/ /
       \____/_/ |_/_/  |_/____/____/   \____/___//____/

Welcome to GRASS GIS 7.8.2dev (ad4836c73)
...

GRASS 7.8.2dev (test_2932):~ > g.proj -w
PROJCS["QND95 / Qatar National Grid",
    GEOGCS["QND95",
        DATUM["Qatar_National_Datum_1995",
            SPHEROID["International 1924",6378388,297,
                AUTHORITY["EPSG","7022"]],
            
TOWGS84[-119.4248,-303.65872,-11.00061,1.164298,0.174458,1.096259,3.657065],
            AUTHORITY["EPSG","6614"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4614"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",24.45],
    PARAMETER["central_meridian",51.21666666666667],
    PARAMETER["scale_factor",0.99999],
    PARAMETER["false_easting",200000],
    PARAMETER["false_northing",300000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","2932"]]

# The versions here:

GRASS 7.8.2dev (test_2932):~ > g.version -rge
version=7.8.2dev
date=2019
revision=ad4836c73
build_date=2019-11-28
build_platform=x86_64-pc-linux-gnu
build_off_t_size=8
libgis_revision=00000
libgis_date="?"
proj=5.2.0
gdal=2.3.2
geos=3.7.1
sqlite=3.30.0

Looks all fine.
Please check if an old PROJ 4 is installed which might confuse things.

Best
Markus
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