By the way, for a listing of terminals, try
PDL::Graphics::Gnuplot::terminfo
which should perhaps be documented better...
On Feb 12, 2013, at 8:17 AM, Craig DeForest <[email protected]> wrote:
> Hi, Chris,
>
> Thanks very much for giving this another look!
>
> Your image example definitely found a bug. The long delay does not happen
> for me under either Linux or MacOS. I suspect that there might a problem
> with Cygwin IPC that needs to be worked around - the pipe seems to be hanging
> up for some reason.
>
> As a simple test case, why not try
>
> PDL::Graphics::Gnuplot::image(rvals(5,5))
>
> which should produce something very quickly? If *that* doesn't work, then we
> need to get someone with a Cygwin system and an afternoon to try to
> understand why it is failing. I could do that except for the part about
> having a Cygwin system. Would you be willing to let me ssh into your virtual
> machine some time?
>
> Cheers,
> Craig
>
>
>
> On Feb 12, 2013, at 8:04 AM, Chris Marshall <[email protected]> wrote:
>
>> Hi Craig-
>>
>> I'm trying again with the PDL::Graphics::Gnuplot on
>> my cygwin/win7 system to sort things out before the
>> coming PDL-2.4.12 release.
>>
>> Starting with the tutorial on the wiki, I have a
>> few questions/observations:
>>
>> - the terminal type seems to need quotes, 'png'
>> - how can I list terminal types from perl
>> - the default empty string gives terminal type ''
>> (this breaks the mouse click examples saying
>> that '' terminal does not support it---even though
>> the default for my system is 'x11'
>> - reading mouse on 'x11' gave no $status hash
>>
>> Finally, I got a window open and displaying ok,
>> so I tried to display an image. Boom! This is
>> a bit disheartening since the image was small
>> and doing images with plot overlays is specifically
>> what I need (often) to comprehend image data.
>>
>> I'm hoping it is a bug somewhere that can be
>> fixed. Here is the output from my pdl2
>> session. The image is a shape [3,320,80]
>> float piddle with pixels in [0,1] and badvalues.
>>
>> pdl> use PDL::Graphics::Gnuplot
>> pdl> $hsv40 = get_hsv_frame(40);
>> Loading get_hsv_frame.pdl ...found ./crank/get_hsv_frame.pdl
>> pdl> PDL::Graphics::Gnuplot::image( {cbrange=>[0,1]}, $hsv40->mv(0,-1)
>> )
>> Runtime error: Hmmm, my main Gnuplot process didn't respond for 60 seconds.
>> This could be a bug in PDL::Graphics::Gnuplot or gnuplot itself --
>> although for some terminals (like x11) it could be because of a
>> slow network. If you don't think it is a network problem, please
>> report it as a PDL::Graphics::Gnuplot bug. You might be able to
>> ignore this message, or you might have to restart() the object.
>> If you are getting this message spuriously, you might like to
>> set the "wait" terminal option to a longer value (in seconds).
>> at /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 6030.
>>
>> PDL::Graphics::Gnuplot::_checkpoint('PDL::Graphics::Gnuplot=HASH(0x820c3e48)',
>> 'main', 'HASH(0x82098438)') called at
>> /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 2462
>> PDL::Graphics::Gnuplot::plot(undef, undef,
>> 'PDL=SCALAR(0x820bdcb0)') called at
>> /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 3098
>> PDL::Graphics::Gnuplot::image('HASH(0x825d8bb0)',
>> 'PDL=SCALAR(0x820bdcb0)') called at (eval 466) line 5
>> pdl> PDL::Graphics::Gnuplot::image( {cbrange=>[0,1]},
>> $hsv40->mv(0,-1)->setbadtoval(0) )
>> Runtime error: Hmmm, my main Gnuplot process didn't respond for 60 seconds.
>> This could be a bug in PDL::Graphics::Gnuplot or gnuplot itself --
>> although for some terminals (like x11) it could be because of a
>> slow network. If you don't think it is a network problem, please
>> report it as a PDL::Graphics::Gnuplot bug. You might be able to
>> ignore this message, or you might have to restart() the object.
>> If you are getting this message spuriously, you might like to
>> set the "wait" terminal option to a longer value (in seconds).
>> at /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 6030.
>>
>> PDL::Graphics::Gnuplot::_checkpoint('PDL::Graphics::Gnuplot=HASH(0x820c3e48)',
>> 'main', 'HASH(0x825c60c0)') called at
>> /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 2389
>> PDL::Graphics::Gnuplot::plot(undef, undef,
>> 'PDL=SCALAR(0x825ccb28)') called at
>> /cygdrive/f/perl/local/lib/perl5/PDL/Graphics/Gnuplot.pm line 3098
>> PDL::Graphics::Gnuplot::image('HASH(0x8210deb0)',
>> 'PDL=SCALAR(0x825ccb28)') called at (eval 475) line 5
>>
>> Hope this gives you some ideas. Do you have
>> a working image example that I could try?
>>
>> Thanks,
>> Chris
>>
>
>
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