Re: Octave.app for MacOSX released

[Paul Kienzle]

On Jul 13, 2007, at 5:30 PM, Henry F. Mollet wrote:

> I replaced lines 109-116 in drawnow.m with your changes given below 
> becoming lines 109-114. As I have two drawnow.m, (one for Octave 
> 2.9.12 and one for Octave 2.1.73) I made sure that I corrected the one 
> for Octave 2.9.12.
>
> When I then tried
> __gnuplot_set term aqua 1
> it still did no work i.e. the Window title did not change and remained 
> "Figure 0". No error messages either as before. Just to make sure, I 
> checked using "which drawnow.m" at the octave-2.9.12 prompt and was 
> told that octave-2.9.12 was using the one that I had corrected.
>
> Therefore, at the moment, I would not be able to use a script that 
> draws more that one plot in Octave 2.9.12 because the first plot would 
> be replaced with the second one. I would have to revert to Octave 
> 2.1.73.
> Henry

Henry,

Have you tried the figure(n) command?

In 2.9.x I can do the following:

  figure(1); plot(1:10);
  figure(3); plot(2:11);
  figure(1); hold on; plot(3:12); hold off;

and it works like I expect.  You do not need to use __gnuplot_set__ 
term aqua to switch between terminals.

In John's rewrite of the plotting infrastructure he had octave open a 
separate connection for each figure so that operations like the above 
would be possible.  I think you are encountering one of the side 
effects, which is that things no longer work as before.  From the 
behaviour I believe what is happening is that __gnuplot_set__ and 
__gnuplot_raw__ are sent to their own private connection to gnuplot, 
separate from any of the figure plotting commands.

To test this, I tried the following:

  __gnuplot_set__ term aqua 1
  __gnuplot_raw__ ("plot sin(x)\n")

and sure enough it created a new figure with title bar "Figure 2" and a 
sinusoid plotted.

I have no idea how to redirect plotting commands to the raw terminal, 
or conversely, how to send raw commands to a figure terminal.


- Paul