On 4/15/08 7:32 AM, "grass-user-request@lists.osgeo.org"
<grass-user-request@lists.osgeo.org> wrote:
Date: Tue, 15 Apr 2008 07:32:06 -0700 (PDT)
From: RAVI KUMAR <ravivundavalli@yahoo.com>
Subject: [GRASS-user] v.net.path
To: grassuser@grass.itc.it
Cc: qgis <qgis-user-bounces@lists.osgeo.org>
Message-ID: <363353.5380.qm@web65603.mail.ac4.yahoo.com>
Content-Type: text/plain; charset="iso-8859-1"Hi,
The windows version of GRASS and Qgis are devoid of
d.* commands
d.* commands write to an xdisplay by default. Interactive d.* commands
require an interactive xdisplay. Windows does not have an xdisplay. The GUI
changes the display environment so that d.* commands write to a file, which
is then displayed in a TclTk (or wxPython) canvas. However, this is not an
interactive xdisplay.
The upshot is that you cannot click with a mouse in a non-xdisplay window
and have it register with a d.* command.
In building the TclTk and wxPython GUI, we're adding a lot of interactive
functions that CAN be controlled with a mouse. But these won't work with a
simple d.* command without additional GUI programming.
Recreating the functionality of d.shortest.path is on the list of things to
do, but we haven't got there yet.
Michael
Network analysis:
v.net.path
is there a simple way of showing the shortest path of a network, taking
mouse clisks as Start and end points ??
Thus avoiding File or from stdin ??Pl give an example if possible.
Cheers
Ravi Kumar
__________________________________________
Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University
phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton