## NAME

v.buffer

## DESCRIPTION

v.buffer creates a buffer around features of given type, which have a category in the given layer. The tolerance controls the number of vector segments being generated (the smaller the value, the more vector segments are generated).

## NOTES

Attributes are not transferred due to potential buffer overlap, which cannot be resolved automatically.

## EXAMPLES

### Buffer around input lines

    v.buffer input=map output=buffer type=line distance=100

### Circles around input points

    v.buffer input=pointsmap output=circles type=point distance=1000

### Non-overlapping circles around input points with attribute transfer

    v.buffer input=archsites output=circles type=point distance=200
    # change original points to centroids:
    v.type in=archsites out=archcentroids type=point,centroid
    # patch circles and centroids:
    v.patch in=archcentroids,circles out=circles_db
    # attach attributes, either use
    # db.copy ...
    # or link to the original table:
    v.db.connect map=circles_db table=archsites field=1 key=cat driver=dbf \
    database='$GISDBASE/$LOCATION_NAME/$MAPSET/dbf'

## SEE ALSO

r.buffer, v.extract, v.type, v.patch, v.db.connect

## AUTHORS

Radim Blazek
Rewritten by Rosen Matev (with support through the Google Summer of Code program 2008)

Last changed: $Date: 2011-11-08 10:42:51 +0100 (Tue, 08 Nov 2011) $

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