[GRASSLIST:4688] Re: from line to polygon

[Markus Neteler]

On Thu, Oct 28, 2004 at 01:15:55PM -0400, DrakeGis wrote:
> Hi Helli,
> 
>    I guess that in GRASS 5.3 you could use
> 
> 1) v.line2area
> 2) v.out.e00
> 
>   I'm not sure about how to do it in GRASS 5.7

Use v.type:
http://grass.itc.it/grass57/manuals/html57_user/v.type.html

Convert lines to area boundaries
 v.type input=map_l output=map_b type=line,boundary

To make it polygons, you will have to add centroids.

Markus
 
> > Hi GRASS friends,
> >
> > I am very new in using GRASS (5.3, 5.7, LINUX). I have two questions:
> >
> > 1) I have a line-Shape-file, in which areas (vegetation types) are
> > digitized. After importing into GRASS, is it possible to convert the lines
> > into polygones?
> >
> > 2) Is it possible to export these polygones in Arc/Info-e00-format?
> >
> > Thanks with greetings from Tyrol
> > Helli