[GRASS-user] Some questions

M S mseibel at gmail.com
Wed May 30 18:53:46 EDT 2007

On 5/30/07, Martin Besta <martin.besta at googlemail.com> wrote:
> Hi all,
> I am new here and to grass, so I have some questions about working with
> grass.

Hello and welcome to the fun world of open source GRASS GIS!!!

> 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?

v.overlay will do a clip, inputting a line and a area as the "clipper".  by
selecting the "and" operator you will get the clipped lines.

> 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

v.patch should do the trick.

> 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?

v.category looks like it edits attributes.

Sorry I cant be more definitive, but I'm working off of the old memory
banks.  =D

I would be happy if you could me give any answers.
> Best regards
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> grassuser at grass.itc.it
> http://grass.itc.it/mailman/listinfo/grassuser
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