Re: ⎕PLOT

[hudson]

Hi Jürgen,

If I close some plot windows manually, and then execute ⎕plot ¯3, I get 
warnings like this one:

(apl:7886): GLib-GObject-WARNING **: 10:40:23.020: invalid unclassed pointer in 
cast to 'GtkWindow'

It sems other bugs are fixed.

Thanks.

Hudson


----- Em 19 de Jun de 2022, em 14:20, Dr. Jürgen Sauermann 
mail@jürgen-sauermann.de escreveu:

> Hi Hudson,
> 
> thanks, see below.
> 
> Best Regards,
> Jürgen
> 
> On 6/19/22 4:34 PM, [ mailto:hudson@hudsonlacerda.com | 
> hudson@hudsonlacerda.com
> ] wrote:
> 
>> Hi.
> 
>> A few things about ⎕plot:
> 
>> 1) GNU APL info manual says (2.31):
>>    ⎕PLOT ¯3      ⍝ close all plot windows
> 
>> However:
>>       ⎕plot 2 1 4 3
>> 94820426042176
>>       ⎕plot ¯3
>> *** Could not find w_props 0xfffffffffffffffd in plot_stop() ***
>> 0
> 
>> [After that, further ⎕plot calls randomly display older plot data, if any.]
> 
> Fixed, SVN 1571 .
> 
>> 2) Is there any way to reuse on the same plot window (instead of
>> storing/closing the handle and creating a new plot window every time)?
>> (Likewise the default "plot()" behaviour of GNU Octave.)
> 
> not really (and providing it would mean quite some rework). I believe that
> the advantages would be quite minimal and under the hood it would probably
> still do the same.
> 
> If you create the new window before closing the old one (i.e. in a
> make-before-break fashion and with the same window attributes, then I
> believe there will be no noticeable difference to using the same window
> multiple times.
> 
>> 3) Info manual (2.31.3) says that a plot can be closed "by opening the
>> drop down menu of the window (at the top left of the window)",
>> but that seems to be system-specific. Here, I can find a similar menu
>> but right-clicking the window-manager border at the top of the window.
> 
> Documentation fixed, SVN 1571 .
> 
> > Hudson