[R-sig-Geo] RPyGeo Query -- probably easy
Maarten van Strien
maarten at vstrien.nl
Fri Dec 18 11:16:16 CET 2009
Andrew, thanks for your reply!
I tried exactly your command, but still the resulting rpygeo.py file
contains the following line:
gp.select_analysis( "nfroads.shp", "paved.shp", "\"ROAD_CLASS\" = 'PAVED' "
So the \"ROAD_CLASS\" = 'PAVED' is still surrounded by double quotes ("). I
have tried many different Python commands, but the only one working for me
gp.select_analysis( "nfroads.shp", "paved.shp", ' "ROAD_CLASS" = \'PAVED\' '
Somehow I need to instruct RPyGeo to leave away the double quotes and
replace them by single quotes.
Kind regards, Maarten
I'm not sure about the single quotes but possibly you could add an extra
special character break (the \ ) to indicate to python that the double
quotes surrounding your field name are not the end of a string. You could
try the following code:
rpygeo.geoprocessor("select_analysis", c("nfroads.shp", "paved.shp", '
\\"ROAD_CLASS\\" = \'PAVED\' '), py.file= "rpygeo.py", working.directory =
wrkspc, env = myenv, clean.up = FALSE)
Dr Andrew Crowe
Lancaster Environment Centre
Lancaster LA1 4YQ
View this message in context: http://n2.nabble.com/RPyGeo-Query-probably-easy-tp2766675p4185819.html
Sent from the R-sig-geo mailing list archive at Nabble.com.
More information about the R-sig-Geo