[Octave-bug-tracker] [bug #39504] Instrument contol script only runs once... plot crashes on second run.

[imartinez]

URL:
  <http://savannah.gnu.org/bugs/?39504>

                 Summary: Instrument contol script only runs once... plot
crashes on second run.
                 Project: GNU Octave
            Submitted by: imartinez
            Submitted on: Wed 17 Jul 2013 06:20:05 AM GMT
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: imartinez
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.3
        Operating System: GNU/Linux

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Details:

Not sure what to do about this.
My script to control an HP8510C runs ok the first time, multiple plots,
several generated files are ok.
Everything is closed and cleaned when it exits.

After it finishes the first time, and it runs again... after trying to plot
the second figure....

Calculate, plot and save transimpedance(Zt) (y/n)?? (Enter => n)
Measure, plot and save S21 delay (y/n)?? (Enter => n)
Measure, plot and save S12 delay (y/n)?? (Enter => n)NP_test =  801
error: fputs: invalid stream number = 5
error: called from:
error:   /usr/share/octave/3.6.3/m/plot/__gnuplot_drawnow__.m at line 299,
column 1
error:   /usr/share/octave/3.6.3/m/plot/__gnuplot_drawnow__.m at line 84,
column 16
error:   /usr/share/octave/3.6.3/m/plot/figure.m at line 60, column 7
error:   /home/labuser/Windows_drive/Inst_programs/HP8510C_Spar.m at line 225,
column 3


H1=figure(1);
plot(Frequency/1e9,20*log10(abs(S11M)),'b');
grid on;
xlabel('Frequency (GHz)');
ylabel(['S11 ' filename ' (dB)']);
set(gca,'XMinorTick','on','YMinorTick','on');
print(1, strcat('S11_', filename, '.png'), '-portrait');

#LINE 225 is below..
H2=figure(2);
plot(Frequency/1e9,20*log10(abs(S22M)),'r');
grid on;
xlabel('Frequency (GHz)');
ylabel(['S22 ' filename ' (dB)']);
set(gca,'XMinorTick','on','YMinorTick','on');
print(2, strcat('S22_', filename, '.png'), '-portrait');


The only option is to exit octave and run again.... bug??? 




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