Hi all, I am new here and to grass, so I have some questions about working with grass.
First, 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? Next... 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 Next.. 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? I would be happy if you could me give any answers. Best regards Martin
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