[email protected] wrote:
Hi,

I would like to convert an ArcGIS .mdb database to shape files but,
unfortunately, the geometry is not exported.  This issue was raised
before in this mailing list, but I could not find a solution. Hence, a
new post.
...
The .dbf file contains the correct data; however, when I load the .shp
file into QGIS the layer is empty.  Similarly, when I import the shape
file into GRASS, GRASS shows 0 lines, polygons and points.  I tried
setting the new layer type option, -nlt, to GEOMETRY, POLYGON, and
LINESTRING but this did not help - shape files contain no geometry.

The ogr2ogr version is 1.6.2, released 2009/07/31.

Is this a known issue with .mdb files?  Are there any diagnostic tools
which may indicate what is wrong with the .mdb file and why geometry is
not exported?  Is anybody aware of possible fixes?

Boris,

There are some geometry types in personal geodatabases which are known not
to translate.  A review of open personal geodatabase tickets should turn up
some information on this. I see the following potentially related tickets:

  http://trac.osgeo.org/gdal/ticket/3100
  http://trac.osgeo.org/gdal/ticket/2991
  http://trac.osgeo.org/gdal/ticket/2702
  http://trac.osgeo.org/gdal/ticket/2643
  http://trac.osgeo.org/gdal/ticket/1918

It looks like, from 2991, that fixes may be in trunk and 1.6.3 that would
be helpful.

Running ogrinfo with the "--debug on" flag might give additional diagnostic
information.

Chaitanya, could you review the status of all the above tickets and see if
your fixes for 2991 address the others?  Please close tickets when you are
reasonably confident they are dealt with (including notes such as pointers
to 2991).

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, [email protected]
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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