You are correct. mapnik was pointing to gdal 1.6.0 instead of gdal 1.7.2 fixing that link causes this error to stop.
However, I am still unable to process the ogr input in mapnik: > ogr2ogr -f "ESRI Shapefile" plots.shp plots.ovf >>> import mapnik >>> ds_ogr = mapnik.Ogr(file='plots.ovf', layer='plots') >>> ds_shp = mapnik.Ogr(file='plots.shp', layer='plots') >>> len(ds_ogr.all_features()) 0 >>> len(ds_shp.all_features()) 5319 Thanks for the responsiveness and the help, guys. I appreciate it. David On Wed, Feb 16, 2011 at 1:45 PM, Jon Burgess <[email protected]> wrote: > On Wed, 2011-02-16 at 13:31 -0800, David Wiesen wrote: > > I am using version 1.7.2 > > > > > > > gdal-config --version > > 1.7.2 > > I would question whether the gdal.input you are using with Mapnik is > really linked against this version of the gdal library since the error > message you are seeing can realistically only be generated by an older > version of code which does not have the "wkbMultiPolygon" string listed > in that table. > > For reference the block of code in gdal-1.7.2 which matches against this > string table and reports the error message you gave is here: > > http://trac.osgeo.org/gdal/browser/tags/1.7.2/gdal/ogr/ogrsf_frmts/vrt/ogrvrtlayer.cpp#L275 > > Jon > > > On Wed, Feb 16, 2011 at 1:29 PM, Jon Burgess <[email protected]> > > wrote: > > On Wed, 2011-02-16 at 12:50 -0800, David Wiesen wrote: > > > I am trying to use an Ogr data source to hook up MySQL as a > > backend > > > for mapnik. However, I am running into early problems: > > > > > > >>> import mapnik >>> ds = mapnik.Ogr(file='plots.ovf', > > layer='plots') > > > ERROR 1: GeometryType wkbMultiPolygon not recognised. > > Traceback (most > > > recent call last): File "<stdin>", line 1, in <module> > > File > > > "/usr/lib/pymodules/python2.6/mapnik/__init__.py", line 429, > > in Ogr > > > return CreateDatasource(keywords) RuntimeError: > > GeometryType > > > wkbMultiPolygon not recognised. >>> > > > > > > > > > That error seems to be thrown from the gdal/ogr code, not > > mapnik itself. > > > > By the look of things, there was a bug in the gdal code which > > meant that > > wkbMultiPolygon used the wrong name string. It looks like this > > was fixed > > in gdal-1.7.0+, what version are you using? > > > > http://trac.osgeo.org/gdal/changeset/17923 > > > > Jon > > > > > > > > > > >
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