Re: Problem with ginput

[Matthias Brennwald]

On Dec 9, 2009, at 1:53 PM, Ben Abbott wrote:

>> Dear all
>> 
>> I have a problem using the ginput command with Octave 3.2.3 on Windows  
>> XP (I did the same on a Mac running Mac OS X, where everything worked  
>> as expeced). Using ginput results in warnings and never returns any  
>> result. Here's an example:
>> 
>> --------------
>> octave.exe:5:~\Desktop
>>> gnuplot_binary
>> ans = C:\Octave\3.2.3_gcc-4.4.0\bin\gnuplot.exe
>> octave.exe:6:~\Desktop
>>> version
>> ans = 3.2.3
>> octave.exe:7:~\Desktop
>>> which ginput
>> `ginput' is a function from the file C:\Octave\3.2.3_gcc-4.4.0\share 
>> \octave\packages\plot-1.0.7\ginput.m
>> octave.exe:8:~\Desktop
>>> plot (rand(1,10))
>> octave.exe:9:~\Desktop
>>> ginput (1)
>> warning: implicit conversion from real matrix to real scalar
>> warning: implicit conversion from real matrix to real scalar
>> warning: implicit conversion from real matrix to real scalar
>> warning: implicit conversion from real matrix to real scalar
>> [THINGS SEEM TO BE STUCK HERE. THE ONLY WAY TO EXIT FROM GINPUT AT  
>> THIS POINT SEEMS TO BE CTRL-C.]
>> --------------
>> 
>> I don't know what to do to fix this. Is this a but or am I doing  
>> something in the wrong way? I'd appreciate any help.
>> 
>> Matthias
> 
> Matthias, can you tell us what version of gnuplot you're using? You can get 
> that info by type "__gnuplot_version__" at Octave's prompt.
> 
> I don't have a windows machine to test this on, but this problem may have 
> been fixed.
> 
> The prior discussion is at this link.
> 
>       http://old.nabble.com/Ginput-doesn't-work-in-3.2.3-to26470943.html
> 
> The changeset is linked to below.
> 
>       http://hg.savannah.gnu.org/hgweb/octave/rev/fea3d4868692
> 
> Can someone confirm this change fixed the problem?
> 
> Ben

Dear Ben, dear all

I believe the above change to __go_draw_figure__.m does not fix my issue. I 
applied the change by hand (I don't know how to use the programs that were made 
for this...), but I still get the very same behavior from ginput(). Maybe I did 
not apply the change properly. So:

- Can someone send me a properly patched version of the file?

- Can someone confirm if the ginput() issue does (not) occur on his/her setup 
(Windows XP, Octave 3.2.3 and gnuplot 4.3, downloaded from 
http://octave.sourceforge.net ).

Thanks
Matthias

----
Matthias Brennwald, Käferholzstrasse 173, CH-8046 Zürich, +41 44 364 17 03