[GRASS-dev] Re: single-click zoom doesn't preserve aspect ratio

Michael Barton michael.barton at asu.edu
Tue Nov 7 17:52:03 EST 2006

There are probably ways to trap errors more gracefully. The best way is not
to have them of course, but it would be good if the program continued even
if it encountered one. I can't put a "catch" command on everything in every
script (this is one way to trap), but it would be good to know which kinds
of errors create this kind of freeze (not all do). As I encounter them, I
try to trap them, but I'm not sure what to look for to do this proactively.

Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton

> From: Moritz Lennert <mlennert at club.worldonline.be>
> Date: Tue, 07 Nov 2006 16:01:08 +0100
> To: Maciej Sieczka <tutey at o2.pl>
> Cc: Michael Barton <michael.barton at asu.edu>, Grass Developers List
> <grass-dev at grass.itc.it>
> Subject: [GRASS-dev] Re: single-click zoom doesn't preserve aspect ratio
> However, this raises another in my eyes more fundamental issue with
> gis.m: when such an error happens, the display canvas becomes
> unresponsive and even if I close it and open another canvas, I still
> cannot display anything. I have to close gis.m and relaunch it to be
> able to display again. This seems to be an issue with catching the
> error. Any ideas on how to solve this ?

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