[GRASS-user] Merge lines into common categories based an attribute information

[Moritz Lennert]

Le 17 septembre 2017 15:16:02 GMT+02:00, Johannes Radinger <johannesradinger at gmail.com> a écrit :
>Hi,
>
>how can I merge multiple lines into one category based on some
>attribute
>information.
>For example I have a line vector consisting of 10 lines and several
>lines
>belong to three different groups (lines belonging to the same group
>share
>the same value in a specific attribute column). Now I'd like to merge
>them
>(assign a common cats) and create an new attribute with the "group
>value"
>as new category (the table should then have 3 rows)? I think this
>should be
>easily possible, but I could not yet find the correct tool.

Try v.reclass.


Moritz