hi Mike,
I was able to get it to work using:
reload(matplotlib)
matplotlib.use('Agg')
I'll have to beat on it some more to see if this is robust.
I saw the error message in this code:
http://search.cpan.org/src/NI-S/Tk-804.027/pTk/mTk/win/tkWinDraw.c
if(!bitmap) {
panic("Fail to allocate bitmap\n");
DeleteDC(dcMem);
TkWinReleaseDrawableDC(d, dc, &state);
return;
}
thanks
Michael Droettboom wrote:
> Can you provide the full traceback for the error? Are there no Python
> line numbers etc.?
>
> I don't see the string "Fail to allocate bitmap" or "Unable to free
> colormap..." anywhere in the matplotlib source, so it's hard to say
> where it's coming from. I suspect they are coming from the GUI
> framework you are using...
>
> If you put your simple example inside of a loop, does the error
> eventually occur -- or only within the context of your app? If the
> latter, we'll need to somehow narrow it down to a specific setting or
> method that causes the problem.
>
> Also, what backend are you using when it breaks? Just Agg, or one of
> the Gui+Agg backends?
>
> Cheers,
> Mike
>
> Chris Kennedy wrote:
>> hi,
>> I get this error when I'm generating numerous .png files using
>> matplotlib 0.9.2 in py2.4 on WinXP
>> -----------------------------
>> Fail to allocate bitmap
>>
>> This application has requested the Runtime to terminate it in an
>> unusual way.
>> Please contact the application's support team for more information.
>> Unable to free colormap, palette is still selected.
>>
>> This application has requested the Runtime to terminate it in an
>> unusual way.
>> Please contact the application's support team for more information.
>> -----------------------------
>>
>> The code is simple:
>> import matplotlib
>> import matplotlib.pyplot as pylab
>>
>> pylabFigure = pylab.figure()
>> pylabFigure.clf()
>> pylab.rcdefaults()
>> pylab.plot(p[0::2], p[1::2], 'b-', linewidth=3)
>> pylab.title('Endpointing Plot for '+StepMillName)
>> pylab.xlabel('Mill Distance ('+m_unit+')')
>> pylab.ylabel('~ Electron response ~' )
>> pylab.grid(True)
>> pylabFigure.savefig('EPP_'+StepMillName+'.png',
>> facecolor='lightgrey', edgecolor='w')
>> pylab.close('all')
>> pylabFigure = None
>>
>> I can put this code in a simple program and generate many images
>> without seeing the allocate bitmap error.
>>
>> Perhaps it is colliding with something else in my main app. Is there
>> a command that can clear, flush, or unselect the palette and/or
>> colormap?
>>
>> I don't see the allocate error if I switch the backend to 'SVG', that
>> has it own set of issues though: telling me it can't use, but then
>> generating SVG files anyway.
>>
>> thanks
>>
>
--
Chris Kennedy http://www.coventor.com
Sr. Product Manager Ph: 919-854-7500 x156
Cary, NC
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