[Qgis-user] different buffer for the same field

[Marco Grisolia]

If you want to assign a specified buffer for each kind of feature, you
may use a simple PyQGIS script using a call of buffer() from
QgsGeometry(). Are you able to do it? Otherwise I may try to write it
for you if my understanding of the problem was right.
Therefore, if your buffer distances are inside a field, you may use
the "Variable Distance Buffer" algorithm from Processing.
Best regards,
Marco

2016-11-16 1:26 GMT+01:00 Azzurra Lentini <azzurralentini at gmail.com>:
> Dear all,
>
> I have a shape file with a field called “type”.  In the “type”  field I have
> 4 kinds of samples ( 19 records).
>
> See in the attachment.
>
> The 4 samples are: normal fault, inverse fault, overthrust, syncline.
>
> I would like to create a buffer with different distance for each sample (the
> best it would be to obtain a shape with 5 different buffer distances).
>
> For example  the buffer distance for the sample “ normal fault” is 30 m, for
> the “inverse fault “ is 20 m, for the “overthrust” is 50 m and for the
> “syncline” is 20 m.
>
>
>
> How I can do this kind of buffer??
>
>
>
> Thanks A.L.
>
>
>
>
> --
> Dr. Hydrogeologist
> AZZURRA LENTINI
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