[Maxima-bugs] [ maxima-Bugs-1502633 ] Gnuplot dumb terminal output not captured by xmaxima

[SourceForge.net <no...@so...>]

Bugs item #1502633, was opened at 2006-06-08 04:43
Message generated for change (Comment added) made by van_nek
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1502633&group_id=4933

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: Xmaxima
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Robert Dodier (robert_dodier)
Assigned to: Nobody/Anonymous (nobody)
Summary: Gnuplot dumb terminal output not captured by xmaxima

Initial Comment:
In Xmaxima (5.9.3cvs / GCL 2.6.7, SBCL 0.9.9, Clisp
2.34 / Linux, and *maybe* also 5.9.3 / GCL 2.6.7 / Win
XP), Gnuplot dumb terminal output is not captured.

    plot2d (sin(x), [x, 0, %pi], [gnuplot_term, dumb]);

shows nothing in Xmaxima, and on Linux at least, the
xterm from which Xmaxima was launched shows the output.

Running Maxima from an xterm shows the dumb terminal
output in the xterm as expected (an ascii art sine wave).

Dunno for sure if this same problem is exhibited by
Xmaxima 5.9.3 / GCL 2.6.7 / Win XP. The dumb terminal
output goes missing, but I don't know if that is the
same bug or a different one, because dumb terminal
output is lost in a Maxima command prompt window.

Fixing the gnuplot dumb terminal output is no pressing
problem, but I'm pretty sure that the problem is that
gnuplot is writing an output stream which is not
redirected by Xmaxima; that seems like a somewhat more
general problem.

----------------------------------------------------------------------

>Comment By: Volker van Nek (van_nek)
Date: 2006-06-10 10:00

Message:
Logged In: YES 
user_id=1269745

Here Robert,
here is what i have written to the mailing list yesterday.
this is specially for Windows.

1. terminal 'dumb'  already works in Windows console maxima 

plot2d( sin(x), [x,0,2*%pi], [gnuplot_term,dumb], 
  [gnuplot_out_file, "D:/test.txt"] );  --> dumb plot 

Remark: The dumb plot character is $, with using gnuplot
directly it is a *. Reason?

2. with xmaxima 

system("type D:/test.txt"); --> NO dumb plot (from the
formerly created file)
system("type D:\\test.txt"); --> NO dumb plot

3. with console maxima and xmaxima

printfile("D:/test.txt"); --> dumb plot

4. plot.lisp lines 1122 ...

        ($dumb
         (if gnuplot-out-file
             ;;($system (format nil $viewtext_command
view-file))
             ($printfile view-file) ;; fix
             ;;($system (format nil "~a \"~a\""
$gnuplot_command file)))))) ;; should be replaced 
by (merror ... )
             (print (format nil "~a \"~a\"" $gnuplot_command
file)))))) ;; for testing

  which WORKS in console maxima and xmaxima

plot2d( sin(x), [x,0,2*%pi], [gnuplot_term,dumb], 
  [gnuplot_out_file, "D:/test.txt"] );  --> dumb plot 

5. 
plot2d( sin(x), [x,0,2*%pi], [gnuplot_term,dumb] ); -->
	"wgnuplot \"C:/Dokumente und Einstellungen/van
Nek/maxout.gnuplot\""

system("wgnuplot \"C:/Dokumente und Einstellungen/van
Nek/maxout.gnuplot\"");

doesn't work, because maxout.gnuplot misses a line for the
out file (set out 'myfile')

Suggestion: 
If  [gnuplot_term,dumb] is set, there should be an error
message if there is no output file.

Volker


----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1502633&group_id=4933