[GRASSLIST:10847]

[Patton, Eric]

<Reposted to the Grass List, because I forgot to CC it yesterday>

My script d.hyperlink could be easily modified to launch Matlab or some
similar program to view your graphs. See here:

http://grass.gdf-hannover.de/twiki/bin/view/GRASS/GrassAddOns#Display_add_on
s

If the Z value and timestamp exists in an attached database, those two
values could be queried out using SQL and passed as parameters to your
graphing program. Currently, the script searches for an image filename in
the attached database and uses that to build an absolute path which gets
passed to an image viewer.

Hope this helps,

-- 
Eric Patton
epatton at nrcan.gc.ca


-----Original Message-----
From: owner-GRASSLIST at baylor.edu [mailto:owner-GRASSLIST at baylor.edu] On
Behalf Of Gehlot, S.
Sent: Wednesday, March 08, 2006 8:22 AM
To: grasslist at baylor.edu
Subject: [GRASSLIST:10818] Invoking a plot program by clicking on screen

Hi all,
My work is analysing time series of radar point targets for land subsidence
analysis. The GRASS data base consists of location coordinates of some
points and their height information at a certain time intervals (Z1,
Z2......so on).

I need to visualize the time series plots (Z1,Z2,Z3.....Zn) of vector
dataset points (X,Y) by clicking on the point. The requred application is
when a point location is clicked, another program such as GNU plot, or
matlab is called to read the database of Z values and plot the values
against time.

It would be very helpful to me if someone could share any experience with
similar applications, or if there are tools available for this purpose.

Swati

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