Patrick Giraudoux a écrit :
I had a point vector map of three points (name = 'samples') where the category values were 1, 100, 200

I reclassified it as following:

v.reclass input=samples output=samples2 rules=reclasscode

where reclasscode is this file:
> cat reclasscode
cat 1
where cat=1
cat 2
where cat=100
cat 3
where cat=200

Then, I cannot find a way out to read the values of cat in the new file 'sample2'. Obviously v.info could just give the names of the columns in 'samples':

> v.info -c map=samples
Displaying column types/names for database connection of layer 1:
INTEGER|cat
INTEGER|ID
DOUBLE PRECISION|x
DOUBLE PRECISION|y

but with the new file
> v.info -c map=samples2
ERROR: Database connection for map <samples2> is not defined in DB file

and anyway, this is not exactly what I would like to get. I would get the value of the categories for each point... and cannot make it whatever the vector file...

Any hint welcome !
Sorry to answer to myself, but it looks like

v.category input=samples2 option=print

makes it !

Patrick

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