[GRASS-user] Adding rows to vector map attribute table

[Daniel Victoria]

Hi Rich,

>From what I recall, grass does not store the vector geometries
(points) into the database. The points are stored in grass internal
format and a link to the attributes in the table is used to get the
values (cat column). So, I don't think inserting x/y coordinates in
the table via SQL 'INSERT INTO' will work. For this you should try
v.in.ascii or, if your data is in a database, you could use v.in.db.
But I don't think that just updating the attibute database will
magically create new points

Cheers
Daniel


On Mon, Apr 23, 2012 at 3:16 PM, Rich Shepard <rshepard at appl-ecosys.com> wrote:
>  I have a few dozen points to add to a vector map and can do this most
> easily using the SQL 'INSERT INTO ...' syntax directly on the postgres
> table. Does GRASS automagically update the cat column, or do I do this as
> part of the insert statement?
>
> Rich
>
>
>
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