On 21/01/16 11:56, Aldo CLERICI wrote:
Moritz,
Thanks for the answer, but my question was probably much more simple.
It was about the order of category values in the output list of v.to.db that 
seems random.
Anyway, by analysing the following example from North Carolina dataset:
v.to.db -p map=geology@PERMANENT option=area units=kilometers
cat|area
11|141.526058758045
13|0.163779303256579
14|45.7839483425881
18|27.8567323538938
19|0.148723573715116
22|0.26102244568762
25|1.56599087232127
27|0.840935167775083
30|0.390091264363512
..............
I realized that the values are listed proceeding from the upper right corner of 
the map from right to left and from up to down.

AFAIK, the values are printed in the order they are read from the map, so all depends on the order in which the features were put on the map.

Moritz

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