Hi,
Somewhere along the way, the interactive test "error bars are OK" (currently
test 96 in the 1.4 test suite) started to fail on Windows .... and I've only
just now noticed.
(This should be re-producible on *any* Windows build of perl, not just
mine.)
The failure occurs in this piece of code:
eval { $w->reset; $w->plot( {title => "Parabola with error bars"},
with=>"xyerrorbars", legend=>"Parabola",
$x**2 * 10, abs($x)/10, abs($x)*5 ); };
If I print out $@ immediately after that code has executed, I find it
contains:
PDL::Graphics::Gnuplot: ERROR: the gnuplot backend issued an error:
24010 4.9 245
^
invalid command
^
invalid command
^
invalid command
at C:/MinGW/perl516/site/lib/PDL/Graphics/Gnuplot.pm line 6767, <STDIN> line
3.
PDL::Graphics::Gnuplot::_checkpoint('PDL::Graphics::Gnuplot=HASH(0x36ac53c)',
'main', 'HASH(0x36ae30c)') called at
C:/MinGW/perl516/site/lib/PDL/Graphics/Gnuplot.pm line 2832
PDL::Graphics::Gnuplot::plot(undef, undef, 'with', 'xyerrorbars',
'legend', 'Parabola', 'PDL=SCALAR(0x36aec1c)', 'PDL=SCALAR(0x36ae79c)',
'PDL=SCALAR(0x36ae1fc)', ...) called at t/plot.t line 527
eval {...} called at t/plot.t line 527
The effect of this failure is that the graph remains unchanged - the error
bars do not appear.
All previous and subsequent tests pass.
I don't know why that failure has started occurring. So long as I specified
gpwin('wxt') in t/plot.t, the exact same test was working fine a fortnight
ago with the P::G::G git version (when it was test 81).
I have, however, ascertained that the problem is NOT caused any of the
subsequent changes to t/plot.t script itself - so it must be some recent
change in Gnuplot.pm that has changed the behaviour.
Sorry, that's about all I have time for right now.
Cheers,
Rob
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