Re: Problems with octave-gui

[Vic Norton]

> On Jun 8, 2016, at 6:15 AM, Sebastian <address@hidden> wrote:
> 
> Dear Vic,
> 
>> I’m seeing graphics problems from my octave-gui/mac/homebrew installation. I 
>> have no way of telling whether these problems are universal or an artifact 
>> of my system.
> it looks like a general problem with gl2ps conversion to me. It would be 
> great if a linux or windows user could verify that the problem is platform 
> independent.
> 
>> I am seeing serious problems with graphics produced by "octave-gui".
>> I have no problems at all with graphics produced by "octave-cli 
>> -—no-window-system”.
>> The "octave-cli" graphics below were produced with "setenv GNUTERM qt”.
> As mentioned already off the list: you have to make use of "graphics_toolkit" 
> to specify the backend. If the backend is not gnuplot then "setenv ..." has 
> no impact. For example, it could be the case that you are printing with fltk 
> and we would not know. This can also be used in the GUI!
> 
>> All of these graphics were produced with the help of the attached 
>> newmarkowitz-1.0.0 octave package and no other octave package. 
>> <newmarkowitz-1.0.0.tar.gz>
> Please use a minimal working example. Most people (or let's say me) will not 
> install a whole package to do debugging. Sorry.
> 
> Sebastian

Thanks for your reply, Sebastian.

My octave-gui is using graphics_tookit(“qt").
My octave-cli —-no-window-system is using graphics_tookit(“gnuplot") with 
setenv GNUTERM qt.

Apparently my octave-gui problem is with qt. In octave-gui
  octave> graphics_toolkit("gnuplot")
  octave> setenv GNUTERM qt
  octave> newmark_how_not_to_do_mean_variance
works perfectly. It produces the same results as the "octave-cli 
—-no-window-system”
in a “gnuplot_qt” window. And that window saves to the same, good PDF-image.

I will try to generate an example without the New Markowitz package. The 
example will necessarily use real daily return data—--six 253-vectors. In any 
case my problem is definitely due to the octave-gui qt terminal. I have no idea 
if this qt is a problem on other implementations of octave-gui.

Regards,

Vic