[Matplotlib-users] Fail to allocate bitmap, Unable to free colormap, palette is still selected.

[Chris K. <chr...@co...>]

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