RE: [GRASS-dev] again: add attributes to new vector / create new vector(Vlib)

GRASS GIS GRASS GIS developer
1

To add new columns to your database, try v.db.addcol:

http://grass.itc.it/grass61/manuals/html61_user/v.db.addcol.html

~ Eric.

-----Original Message-----
From: grass-dev-bounces@grass.itc.it
To: grass-dev@grass.itc.it
Sent: 7/12/2006 6:42 AM
Subject: [GRASS-dev] again: add attributes to new vector / create new

vector(Vlib)

Hello list!

I am still working on a new vector module for GRASS GIS.
It reads an existing vector set (stream network), calculates the
strahler order for the lines and writes a new vector set.

2

On 12.07.2006, at 14:22, Patton, Eric wrote:

To add new columns to your database, try v.db.addcol:

Thanks Eric,
v.db.addcol doesn't help me so much as I need to alter the table from within the module written in C.
Thank you for your hint, though, it did lead me to the function db_add_columns() in the DBMI library.

This function should do what I need. However, it seems to be not implemented yet, a conclusion I draw from the error message I get when I call it:

dbmi: db_add_column() not implemented

How is the development status of db_add_column() and what can I use instead?

-Flo.