[R-sig-Geo] Setting FID values when saving GML files with writeOGR
Karl Ove Hufthammer
karl at huftis.org
Thu Aug 25 15:22:45 CEST 2011
Dear list members,
Is it possible to define which FID values should be used when
saving a SpatialPointsDataFrame to a GML files using writeOGR
(rgdal package)?
The FID values are stored as <ogr:layername fid="F0"> (and F1,
F2, …). If I insert a new row in the SPDF, most features change
their FID, which creates much unneccessary noise in our VCS,
so I would like to use an already existing ID as the FID.
I have tried change both the row.names and adding columns named
‘fid’ and ‘gml_id’, the writeOGR still only uses F0, F1, … as
the FIDs.
--
Karl Ove Hufthammer
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