On 28/05/12 12:30, Markus Metz wrote:
On Mon, May 28, 2012 at 11:52 AM, spiderplant0<[email protected]> wrote:
Hi. It doesn't add any new information but I wanted the .dbf file to be there
so I can open it up with other tools and check the contents for debug
purposes etc. And I wanted to change the column to the correct name for
consistency with downstream processing scripts.
Try
v.dissolve input=pass2@mapset1 layer=1 column=fttcp output=pass3
v.db.addtable map=pass3
v.db.renamecol map=pass3 column=cat,fftcp
IIUC, if you do that you will lose the connection between the map and
the attribute table if that connection is defined with the cat column as
the key column.
If you want to keep the connection, but use the name fftcp instead of
cat for the key column, you will have to do something like this:
v.dissolve input=pass2@mapset1 layer=1 column=fttcp output=pass3
v.db.addtable map=pass3
v.db.addcolumn map=pass3 col="fftcp int"
v.db.update map=pass3 col=fftcp qcolumn=cat
v.db.connect -o map=pass3 table=pass3 key=fftcp
v.db.dropcolumn map=pass3 col=cat
If you want that to be done by v.dissolve, that is, v.reclass,
automatically, you could file an enhancement ticket for v.reclass to
add a new flag, say -t, to always create a table for the output where
the original column name is used when the column type is integer.
Maybe adding the option to v.db.addtable to use another name for the key
column would also be good idea.
Moritz
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