Re: gnuplot output from print?

[John W. Eaton]

On  1-Sep-2007, Shai Ayal wrote:

| On 9/1/07, Søren Hauberg <address@hidden> wrote:
| > Hi,
| >   I don't really know that much about how the current plotting system
| > work, so this will probably be a very silly question. I was just
| > wondering how hard it would be to add gnuplot output to print. That is,
| > making it possible to write something like,
| >
| >   print -dgnuplot myplot.gp
| >
| > which then would produce a file gnuplot could read. This could be quite
| > useful when you want to tweak some minor detail of a plot. Anyway, just
| > thinking out loud...
| 
| Very nice suggestion. I am not near the computer now, but I think
| that, taking example from drawnow.m:
| 
| fid = fopen("out.gplt","wb");
| __go_draw_figure__ (fig_handle, fid);
| fclose(fid);
| 
| Should give you what you want

Oh, that's a nice trick.  I think it is a much better way of saving
the gnuplot command stream than doing something like

  gnuplot_binary("tee out.gplt | gnuplot");

and then doing plotting, which is what I used to do.

If someone is interested in a small project, it would be nice to fold
this functionality into drawnow, though I'm not sure what the
interface should be.  Perhaps

  drawnow (term, file, dump_commands)

Note that it should probably avoid writing "set output" and "set term"
commands to the output file.

jwe