[R-sig-Geo] writeOGR with 2+ layers in 1 KML file
david.holstius at berkeley.edu
Tue Apr 5 22:14:03 CEST 2011
Hi, I would like to write two different Spatial* objects, as two different layers, to the same KML file using rgdal::writeOGR().
If I do something like:
> writeOGR(bar, driver="KML", dsn="foo.kml", layer="bar")
... I get a KML Document with a Folder element inside named "bar". So far, so good.
But if I follow that with:
> writeOGR(baz, driver="KML", dsn="foo.kml", layer="baz")
... the contents of foo.kml are obliterated and replaced with new contents. I would prefer that another Folder, named "baz", be created in "foo.kml" without erasing any other Folder elements.
Is this possible? Is there a flag I didn't find? Am I doing it wrong? Many thanks in advance,
PhD Student in Environmental Health Sciences
UC Berkeley School of Public Health
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