Hi all,<br>I am new here and to grass, so I have some questions about working with grass.<br><br>First,<br>I
have some maps and one line, witch represents the boundary of area. And
I need to trim my maps with this line (somethings like Clip by ESRI).
Is it possible with Grass tools?
<br><br>Next...<br>To my polygon map I want to add some polygons from
other polygon map (Update, again like ESRI). I am not sure if v.patch
is the best solution to get this<br><br>Next.. <br>Can I edit the
column header (name and type) of attribute table? I know another WIN
software that can it do, but i am interested in GRASS now. Is it
possible to remove some columns from the table with Grass?
<br><br>I would be happy if you could me give any answers.<br>Best regards