[GRASS-dev] problem with r.colors on Mac

[Michael Barton]

On 4/17/07 9:39 PM, "Glynn Clements" <glynn at gclements.plus.com> wrote:

> 
> Michael Barton wrote:
> 
>> It's the progress bar.
>> 
>> If I comment out the following lines in Gronsole::output_to_gronsole, it
>> stops crashing. It's something about one of the two lines that execute after
>> progress reaches 100%.
>> 
>> 
>> #     } elseif { [regexp -- {^GRASS_INFO_PERCENT: (.+)$} $str match val
>> rest] } {
>> #         Gronsole::progress $path $ci $val
>> #         if { $val >= 100 } {
>> #             Gronsole::progress $path $ci -1
>> #             $outtext insert $mark "\n" $tags
>> #         }
> 
> My first would guess would be the progress bar widget itself.
> 
> It may be best to simply trace the code, e.g.:
> 
> proc tracer {cmd op} {
> puts stderr $cmd
> }
> 
> trace add execution Gronsole::progress enter tracer
> 
> Redirect stderr to a file; it will generate a lot of output.
> 
> FWIW, I found that the first time that I ran "r.colors --ui ...", the
> UI crashed, but I couldn't reproduce it after that, which suggests
> that it's timing related, i.e. it happens if the module produces
> output too fast. I note that wish takes quite a while to start the
> first time, but is much quicker thereafter (when the files are in
> RAM).
> 
> Does it help if you remove the "update" call from the end of
> ProgressBar::_modify?

I have a bit of down time to try again to track down this problem. It
crashes the GUI when any process is run that takes a bit of time and
generates a progress bar (e.g., r.stats too).

Where is ProgressBar::_modify??

It doesn't seem to be in gronsole.tcl

Michael

__________________________________________
Michael Barton, Professor of Anthropology
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