[Maxima] draw fails in remote ascii terminals

[Robert Dodier]

On 11/25/10, Sheldon Newhouse <sen1 at math.msu.edu> wrote:

>   How do I get draw to export graphics windows in remote maxima?
>
>   I want to use maxima on remote servers.

My advice is to login via ssh -X. But if you are seeing plot2d output,
probably you already solved that problem.

> Here is the output on the terminal from
>
> (%i1) draw2d(explicit(x^2,x,-1,1));
> (%o1)                          [gr2d(explicit)]
> (%i2)
>
> So, it looks as if the graphics is generated.  But, there is no display
> on the remote machine.
>   Both plot2d and gnuplot work as expected.

Hmm. My first guess is that the Gnuplot output file generated by
draw2d is invalid or something. By default draw2d generates a
couple of output files, maxout.gnuplot and data.gnuplot, in the
directory named by the global variable maxima_tempdir.
cd to that directory and try running Gnuplot from the shell prompt;
perhaps this will do: gnuplot -persist maxout.gnuplot

If that doesn't display anything, there's a bug in draw2d.
Otherwise, I'm really puzzled.

Note that plot2d generates files of the same names, so try
the gnuplot command only after calling draw2d.

HTH

Robert Dodier