Re: [Plplot-general] Does plplot have an equivalent of PGPLOT's /xserve device?

[Alan W. I. <ir...@be...>]

Hi Tom:

On 2014-05-01 17:33+0100 Thomas Marsh wrote:

> Thanks for your message Alan. I could run "make xwin" but the subsequent
> commands failed for some reason.

Could you be more explicit about exactly what you did, and the error
messages that were generated?  I was careful to verify the commands I
suggested so those suggested C and Python tests work for me, and I am
quite surprised they do not work for you.

> Note however that I am able to run the
> Python version of plplot successfully already. I am not sure that what you
> describe is quite it. Does the example program exit before you exit the
> plot? (so that you could e.g type "ls" in the terminal from which you ran
> the example program, etc.) My guess is no. The equivalent in PGPLOT is the
> /xwindow device where it asks you to "hit <cr> for the next page:" and once
> you do this, the plot disappears and program execution continues (exiting
> if there is nothing left to do). The /xserve device does not produce the
> "hit <cr>" message but the program continues executing and the plot
> persists. The equivalent with plplot would be that the plot appears, the
> program exits but the plot still exists. As I understand /xserve, an
> independent server is created which carries on running even after the
> program that created it has exited.  This for example allows you to run
> another script and write a new plot into the plot window, or if you want
> open and write to a new window (by specifying "2/xserve", "3/xserve" etc).
>
> Here is the minimal Python example of where it differs relative to PGPLOT's
> /xserve:
>
> plsdev("xwin")
> plinit()
> plspause(False)
> plend()
>
> [rest of code]
>
> This continues executing rest code, but no plot is produced. If I do
> instead:
>
> plsdev("xwin")
> plinit()
> plend()
>
> a plot is produced, but has to explicitly exited before program execution
> resumes.

Thanks for this clarification of your needs.  In answer to your
specific question above, the example program does not exit before you
exit the plot, but I suggest you verify that yourself by running the
exact C and Python tests I recommended (i.e., follow up on why you
could not reproduce those simple test cases) to make absolutely sure
we are talking about the same things.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
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