[GRASS-user] v.coordinate.sh - improve this script?

[Nikos Alexandris]

Michael,

thank you for these important details for new GRASS users (like me). On
the web I have found some good resrources for bash scripting. Is there
something for Python (for beginners) and maybe GRASS-oriented as well?

Thank you,

Nikos

On Thu, 2008-01-24 at 08:28 -0700, Michael Barton wrote:
> On Jan 24, 2008, at 6:52 AM, grass-user-request at lists.osgeo.org wrote:
> 
> > Date: Thu, 24 Jan 2008 05:12:03 -0800 (PST)
> > From: "Gabriele N." <gis.gn at libero.it>
> > Subject: [GRASS-user] v.coordinate.sh - improve this script?
> > To: grass-user at lists.osgeo.org
> > Message-ID: <15063748.post at talk.nabble.com>
> > Content-Type: text/plain; charset=us-ascii
> >
> >
> > Hi list.
> > I made a script (attached) for the definition of interactive text file
> > (containing the coordinates input and output) to be loaded later in
> > v.transform.
> >
> > It is useful to write automatically coordinates in the text file.
> >
> > Operation is simple:
> > - A load map (not georeference) and the map B (which may be raster or
> > vector) and will open 2 monitor.
> >
> > - We need to move the first monitor to the side of the second monitor.
> >
> > - Proceed doing a zoom (if necessary) on the first monitor (A map)  
> > and then
> > identifying the input point (GCP) with one click. After this  
> > transaction
> > will be made to locate the point on the second monitor (B map).
> > The pairs of points are identifying 4 (at least 4). For more points  
> > see a
> > graphic which will require to continue with the process or not.
> >
> > - After the inclusion of the points in your / home will be a text file
> > 'coordinate.txt' formatted for use in v.transform.
> >
> >
> > The script is certainly improved. For example viewing points  
> > included (as eg
> > in i.points on in d.path) or shifting automatically monitors or  
> > using snap
> > for the insertion points etc. ...
> >
> > I have no programming experience, and I hope that someone can help me
> > improve.
> >
> > Gabriele
> >
> > PS
> > Necessary installing xdialog and xmessage
> > 		
> > http://www.nabble.com/file/p15063748/v.coordinate.sh v.coordinate.sh
> > -- 
> > View this message in context: http://www.nabble.com/ 
> > v.coordinate.sh---improve-this-script--tp15063748p15063748.html
> > Sent from the Grass - Users mailing list archive at Nabble.com.
> 
> Gabriele,
> 
> It is good to learn scripting of some kind because it really expands  
> the analytical capabilities of GRASS. However, I'm not sure why you  
> are trying to create a bash script for interactive georectifying.
> 
> i.points already does with with xmonitors. However, this will not  
> work on Windows because it doesn't support the underlying socket code  
> for the monitor drivers.
> 
> The TclTk GUI already has a more sophisticated replacement for this  
> function that works on all platforms.
> 
> Also, given issues (long known) that we've run into again with  
> running bash scripts on Windows, I think that now is the time to  
> begin to strongly encourage GRASS users and developers to try to  
> begin shifting their scripting to a platform that works on all OS's.  
> Since the new GUI will be in Python, I strongly suggest that we start  
> developing new scripts in Python and for anyone with time on their  
> hands ;-) start to create Python versions of existing scripts. The  
> more scripts that are available in Python, the more people will make  
> sure that Python is installed and will take a look at it, which will  
> lead to more scripts in Python, etc...
> 
> Already, a Python script can pop up the same TclTk GUI that a bash  
> script can, and has the option of popping up a wxPython GUI if this  
> is installed.
> 
> Michael
> 
> ____________________
> C. Michael Barton, Professor of Anthropology
> Director of Graduate Studies
> School of Human Evolution & Social Change
> Center for Social Dynamics & Complexity
> Arizona State University
> 
> Phone: 480-965-6262
> Fax: 480-965-7671
> www: <www.public.asu.edu/~cmbarton>
> _______________________________________________
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-- 
Nikos Alexandris
.
Department of Remote Sensing & Landscape Information Systems
Faculty of Forestry & Environmental Sciences, Albert-Ludwigs-University Freiburg
.
Tel.  +49 (0) 761 203 3697 / Fax.  +49 (0) 761 203 3701 / Skype: Nikos.Alexandris
.
Address: Tennenbacher str. 4, D-79106 Freiburg i. Br., Germany
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