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
>
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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