[Qgis-user] Move Point with buffer

[Stefan Sylla]

Hi Joris,

have a look at this post here, its what you need to do:

http://linfiniti.com/2013/04/dynamically-updating-layers-in-qgis-with-postgis-views/

Basically you can accomplish that by importing your point layer to a 
Postgis database (using th SPIT plugin in QGIS) and then create a view 
of your point layer that creates the buffer around the point. Here an 
example of how you could create that view via SQL:

create view point_buffer as
     select gid,st_buffer(the_geom,buffer) as geom
from points

"buffer" would be the column with the value for your buffer. If you load 
the point and the view back into QGIS it will dynamically create the 
buffer around your point according to the "buffer" value, wherever you 
move that point.

Installing instructions for Postgis:

http://postgis.net/install
or
http://www.bostongis.com/PrinterFriendly.aspx?content_name=postgis_tut01


Stefan

On 06/17/2014 09:14 PM, jorishin [via OSGeo.org] wrote:
>
> Hello,
>
> Is there a way to do the following:
>
> I have a point layer. I create a buffer layer around these points.
>
> Problem: How do I move the buffer together if I want to move the point?
>
> Thanks for any tips
>
> Joris *HINTJENS*
>
>
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