[Qgis-user] all prj-files broken?

Robert Nuske rnuske at gwdg.de
Thu Sep 15 08:45:40 PDT 2011


Hi List,

are all prj-files written by QGIS broken or just mine?


Saving a layer as shapefile writes always a prj-file with an unkown datum. 

That causes problems visualising that shapefile in other GIS and reprojecting 
it  outside of QGIS and. I tested different projected coordinate systems with 
QGIS 1.7 from ubuntugis_unstable on Ubuntu 10.10.
 


Example:
ogrinfo -al -so utm32.shp
INFO: Open of `utm32.shp'
      using driver `ESRI Shapefile' successful.

Layer name: utm32
Geometry: Point
Feature Count: 3
Extent: (-3.751456, -2.466990) - (4.628155, 1.957282)
Layer SRS WKT:
PROJCS["UTM_Zone_32_Northern_Hemisphere",
    GEOGCS["GCS_GRS 1980(IUGG, 1980)",
        DATUM["unknown",
            SPHEROID["GRS80",6378137,298.257222101]],
        PRIMEM["Greenwich",0],
        UNIT["Degree",0.017453292519943295]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",9],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["Meter",1]]
id: Integer (10.0)



cheers,
  robert

P.S. I wrote a similar email a week ago, but that one was probably too long.
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