[GRASS-user] Python-Loop over points

[Johannes Radinger]

Hello,


-------- Original-Nachricht --------
> Datum: Mon, 7 Feb 2011 22:25:31 -0200
> Von: Daniel Victoria <daniel.victoria at gmail.com>
> An: Johannes Radinger <JRadinger at gmx.at>
> CC: grass-user at lists.osgeo.org
> Betreff: Re: [GRASS-user] Python-Loop over points

> Hi Johannes,
> 
> You will need to use for loop. Something like this (UNTESTED!)
> 
> for p in range(5):
>     points_map = "point"+str(p)
>     out_map = "output"+str(p)
>     grass.run_command("r.streams.basins", dir = "flow_direction,
> points=points_map, basins = out_map)
> 
> That should work, or at least something similar
> 
> Daniel

Thank you for your suggestions Daniel, I also thought about
a for loop. But in your case the loop is using for each iteration
a input-pointmap called "point"+str(p).

 The difference in my
case is that I've got only one vector map but with several points
in it and I want to iterate over the single points.
How is it possible to iterate over the single points? The points are 
stored in a kind of list format, so it should somehow be possible to
loop over this file, but how?

any suggestions?

 /johannes

> 
> On Wed, Feb 2, 2011 at 9:39 AM, Johannes Radinger <JRadinger at gmx.at>
> wrote:
> > Hello,
> >
> > I am performing e.g. the r.stream.basins calcutlation in python:
> >
> >    grass.run_command("r.stream.basins",
> >                      dir = "flow_direction",
> >                      points = "point1",
> >                      basins = "output")
> >
> > that's working perfectly in the case of one single point in "point1".
> > How can I do that multiple times when the point layer consist of e.g. 5
> > points and I want to create an output for each point (create 5 output
> rasters).
> >
> > How can that be done in a python script?
> >
> >
> > thank you
> >
> > Johannes
> >
> > --
> > NEU: FreePhone - kostenlos mobil telefonieren und surfen!
> > Jetzt informieren: http://www.gmx.net/de/go/freephone
> > _______________________________________________
> > grass-user mailing list
> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
> >

-- 
NEU: FreePhone - kostenlos mobil telefonieren und surfen!			
Jetzt informieren: http://www.gmx.net/de/go/freephone