[Qgis-user] Extract Projection Hangs

[Rebecca Bennett]

Thanks for the tips on using gdalsrsinfo Andre.


I can confirm that the tifs do have a projection assigned (see output below), but that the extract projection tool still hangs when I attempt to create the world file:


C:\Users\Rebecca\Desktop>gdalsrsinfo C:\Users\Rebecca\Documents\DTM_MULTI-HS_D8_H25.tif

PROJ.4 : '+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 +x_0=400000 +y_0=-1000
00 +datum=OSGB36 +units=m +no_defs '

OGC WKT :
PROJCS["OSGB 1936 / British National Grid",
    GEOGCS["OSGB 1936",
        DATUM["OSGB_1936",
            SPHEROID["Airy 1830",6377563.396,299.3249646000044,
                AUTHORITY["EPSG","7001"]],
            AUTHORITY["EPSG","6277"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433],
        AUTHORITY["EPSG","4277"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",49],
    PARAMETER["central_meridian",-2],
    PARAMETER["scale_factor",0.9996012717],
    PARAMETER["false_easting",400000],
    PARAMETER["false_northing",-100000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","27700"]]

Does anyone have another way to create worldfiles from the embedded geotiff data? I suppose I could do this by hand for each file but ideally I'd like a neat solution for batch creation across a directory (like extract projection used to offer!).

Many thanks,
Rebecca
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