Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
Great. The forthcoming 0.91.2 release sounds like it will be very important to Windows users. Apologies for introducing this bug in the first place! Cheers, Mike [EMAIL PROTECTED] wrote: > Michael et al. > > The r4633 patch fixes the problem indeed. Thanks for your help!! > > > Brian > > > -Original Message- > From: Michael Droettboom [mailto:[EMAIL PROTECTED] > Sent: Tuesday, December 11, 2007 10:03 AM > To: Boonstra, Brian > Cc: matplotlib-users@lists.sourceforge.net > Subject: Re: [Matplotlib-users] Repeated calls to set_text using TeX > formatting results in RuntimeError > > The patch for r4633 is pretty simple, so you could test it without > needing to check out from SVN or build your own matplotlib etc. > > Open the file "font_manager.py", which should live in > "%PYTHONPATH%/Lib/site-packages/matplotlib". Around line 681, you'll > find the function: > > def __hash__(self): > return hash(repr(self.__props)) > > Change it to: > > def __hash__(self): > return hash(repr(self.__props.__dict__)) > > (Obviously, back up the file first...) > > Then try your script again. If that doesn't work, I'll have to fire up > Windows some time to have a look -- I'm not able to reproduce this bug > on Linux. > > Cheers, > Mike > > [EMAIL PROTECTED] wrote: >>> I believe this is a known bug with 0.90.1. Are you able to run >> 0.91.1? >> >> >> I just upgraded and checked -- the bug still exists in 0.91.1. I'm >> afraid I don't know whether it has been fixed by r4633 or not. >> >> Best, >>Brian >> >> >> [EMAIL PROTECTED] wrote: >>> I'm doing a parameter fitting exercise, and plotting the progress as >>> I >>> do so. I have found that repeated calls to set_text() on a text >>> object will result in an error opening a font file iff the text uses >>> TeX formatting. (I am not using the experimental usetex feature). >>> >>> I speculate that matplotlib is opening the font file anew with each >>> call to set_text and never closing it, resulting ultimately in having > >>> too many files open. Here is a brief program to reproduce this >>> behavior (WinXP, Py2.5, matplotlib 0.90.1): >>> >>> >>> from pylab import figure, axes, draw, ion from numpy import array, >>> cos, abs >>> ion() >>> fig=figure() >>> axs=axes() >>> x=array(range(100))/10.0 >>> cosPlot=axs.plot( x, cos(x)**2, 'r' ) powText = >>> axs.text(0.9,0.02,r'$\alpha=$', >>> >> horizontalalignment='left',verticalalignment='bottom', >>> transform = axs.transAxes) >>> draw() >>> for alpha in array(range(10,400))/100.0: >>> axs.lines[-1].set_ydata( abs(cos(x))**alpha) >>> powText.set_text(r'$\alpha=%.4g$'%alpha) >>> print alpha >>> draw() >>> >>> >>> >>> >>> >>> Traceback (most recent call last): >>> File "delme.py", line 16, in >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\pylab.py", >>> line 754, in draw >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\backends\backend_tkagg.py", >>> line 154, in draw >>> >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\backends\backend_agg.py", >>> line 392, in draw >>> >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\figure.py", >>> line 601, in draw >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\axes.py", >>> line 1286, in draw >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\text.py", >>> line 410, in draw >>> File >>> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >>> l >>> otlib\text.py", >>> line 255, in _get_layout >>>
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
Michael et al. The r4633 patch fixes the problem indeed. Thanks for your help!! Brian -Original Message- From: Michael Droettboom [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 11, 2007 10:03 AM To: Boonstra, Brian Cc: matplotlib-users@lists.sourceforge.net Subject: Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError The patch for r4633 is pretty simple, so you could test it without needing to check out from SVN or build your own matplotlib etc. Open the file "font_manager.py", which should live in "%PYTHONPATH%/Lib/site-packages/matplotlib". Around line 681, you'll find the function: def __hash__(self): return hash(repr(self.__props)) Change it to: def __hash__(self): return hash(repr(self.__props.__dict__)) (Obviously, back up the file first...) Then try your script again. If that doesn't work, I'll have to fire up Windows some time to have a look -- I'm not able to reproduce this bug on Linux. Cheers, Mike [EMAIL PROTECTED] wrote: >> I believe this is a known bug with 0.90.1. Are you able to run > 0.91.1? > > > I just upgraded and checked -- the bug still exists in 0.91.1. I'm > afraid I don't know whether it has been fixed by r4633 or not. > > Best, >Brian > > > [EMAIL PROTECTED] wrote: >> I'm doing a parameter fitting exercise, and plotting the progress as >> I > >> do so. I have found that repeated calls to set_text() on a text >> object will result in an error opening a font file iff the text uses >> TeX formatting. (I am not using the experimental usetex feature). >> >> I speculate that matplotlib is opening the font file anew with each >> call to set_text and never closing it, resulting ultimately in having >> too many files open. Here is a brief program to reproduce this >> behavior (WinXP, Py2.5, matplotlib 0.90.1): >> >> >> from pylab import figure, axes, draw, ion from numpy import array, >> cos, abs >> ion() >> fig=figure() >> axs=axes() >> x=array(range(100))/10.0 >> cosPlot=axs.plot( x, cos(x)**2, 'r' ) powText = >> axs.text(0.9,0.02,r'$\alpha=$', >> > horizontalalignment='left',verticalalignment='bottom', >> transform = axs.transAxes) >> draw() >> for alpha in array(range(10,400))/100.0: >> axs.lines[-1].set_ydata( abs(cos(x))**alpha) >> powText.set_text(r'$\alpha=%.4g$'%alpha) >> print alpha >> draw() >> >> >> >> >> >> Traceback (most recent call last): >> File "delme.py", line 16, in >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\pylab.py", >> line 754, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\backends\backend_tkagg.py", >> line 154, in draw >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\backends\backend_agg.py", >> line 392, in draw >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\figure.py", >> line 601, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\axes.py", >> line 1286, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\text.py", >> line 410, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\text.py", >> line 255, in _get_layout >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\backends\backend_agg.py", >> line 246, in get_text_width_height >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\mathtext.py", >> line 1569, in __call__ >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matp >> l >> otlib\mathtext.py", >> line 578, in __init__ >> RuntimeError: Could not open facefile >> c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> o >> tlib\mpl-data\fonts\ttf\cmtt10.ttf; >> Cannot_Open_Resource >> >> >> ---
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
The patch for r4633 is pretty simple, so you could test it without needing to check out from SVN or build your own matplotlib etc. Open the file "font_manager.py", which should live in "%PYTHONPATH%/Lib/site-packages/matplotlib". Around line 681, you'll find the function: def __hash__(self): return hash(repr(self.__props)) Change it to: def __hash__(self): return hash(repr(self.__props.__dict__)) (Obviously, back up the file first...) Then try your script again. If that doesn't work, I'll have to fire up Windows some time to have a look -- I'm not able to reproduce this bug on Linux. Cheers, Mike [EMAIL PROTECTED] wrote: >> I believe this is a known bug with 0.90.1. Are you able to run > 0.91.1? > > > I just upgraded and checked -- the bug still exists in 0.91.1. I'm > afraid I don't know whether it has been fixed by r4633 or not. > > Best, >Brian > > > [EMAIL PROTECTED] wrote: >> I'm doing a parameter fitting exercise, and plotting the progress as I > >> do so. I have found that repeated calls to set_text() on a text >> object will result in an error opening a font file iff the text uses >> TeX formatting. (I am not using the experimental usetex feature). >> >> I speculate that matplotlib is opening the font file anew with each >> call to set_text and never closing it, resulting ultimately in having >> too many files open. Here is a brief program to reproduce this >> behavior (WinXP, Py2.5, matplotlib 0.90.1): >> >> >> from pylab import figure, axes, draw, ion from numpy import array, >> cos, abs >> ion() >> fig=figure() >> axs=axes() >> x=array(range(100))/10.0 >> cosPlot=axs.plot( x, cos(x)**2, 'r' ) >> powText = axs.text(0.9,0.02,r'$\alpha=$', >> > horizontalalignment='left',verticalalignment='bottom', >> transform = axs.transAxes) >> draw() >> for alpha in array(range(10,400))/100.0: >> axs.lines[-1].set_ydata( abs(cos(x))**alpha) >> powText.set_text(r'$\alpha=%.4g$'%alpha) >> print alpha >> draw() >> >> >> >> >> >> Traceback (most recent call last): >> File "delme.py", line 16, in >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\pylab.py", >> line 754, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\backends\backend_tkagg.py", >> line 154, in draw >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\backends\backend_agg.py", >> line 392, in draw >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\figure.py", >> line 601, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\axes.py", >> line 1286, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\text.py", >> line 410, in draw >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\text.py", >> line 255, in _get_layout >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\backends\backend_agg.py", >> line 246, in get_text_width_height >> >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\mathtext.py", >> line 1569, in __call__ >> File >> "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl >> otlib\mathtext.py", >> line 578, in __init__ >> RuntimeError: Could not open facefile >> c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplo >> tlib\mpl-data\fonts\ttf\cmtt10.ttf; >> Cannot_Open_Resource >> >> >> -- >> -- >> >> -- >> --- >> SF.Net email is sponsored by: >> Check out the new SourceForge.net Marketplace. >> It's the best place to buy or sell services for just about anything >> Open Source. >> http://sourceforge.net/services/buy/index.php >> >> >> -- >> -- >> >> ___ >> Matplotlib-users mailing list >> Matplotlib-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/matplotlib-users > > -- > Michael Droettboom > Science Software Branch > Operations and Engineering Division > Space Telescope Science Institute > Operated by AURA for NASA > > This message contains confidential information and is intended only > for the individual named. If you are not the named addressee you > should not disseminate, distribute or copy this e-mail. Please > notify the sender immediately by e-mail if you have received this > e-mail by mistake and delete this e-mail from your system and destroy > any copies thereof. > > E-mail transmission cannot be guaranteed to be secure or error-free > as information could be intercepted, corrupted, lost, destroyed, > arrive
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
> I believe this is a known bug with 0.90.1. Are you able to run 0.91.1? I just upgraded and checked -- the bug still exists in 0.91.1. I'm afraid I don't know whether it has been fixed by r4633 or not. Best, Brian [EMAIL PROTECTED] wrote: > I'm doing a parameter fitting exercise, and plotting the progress as I > do so. I have found that repeated calls to set_text() on a text > object will result in an error opening a font file iff the text uses > TeX formatting. (I am not using the experimental usetex feature). > > I speculate that matplotlib is opening the font file anew with each > call to set_text and never closing it, resulting ultimately in having > too many files open. Here is a brief program to reproduce this > behavior (WinXP, Py2.5, matplotlib 0.90.1): > > > from pylab import figure, axes, draw, ion from numpy import array, > cos, abs > ion() > fig=figure() > axs=axes() > x=array(range(100))/10.0 > cosPlot=axs.plot( x, cos(x)**2, 'r' ) > powText = axs.text(0.9,0.02,r'$\alpha=$', > horizontalalignment='left',verticalalignment='bottom', > transform = axs.transAxes) > draw() > for alpha in array(range(10,400))/100.0: > axs.lines[-1].set_ydata( abs(cos(x))**alpha) > powText.set_text(r'$\alpha=%.4g$'%alpha) > print alpha > draw() > > > > > > Traceback (most recent call last): > File "delme.py", line 16, in > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\pylab.py", > line 754, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_tkagg.py", > line 154, in draw > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_agg.py", > line 392, in draw > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\figure.py", > line 601, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\axes.py", > line 1286, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\text.py", > line 410, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\text.py", > line 255, in _get_layout > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_agg.py", > line 246, in get_text_width_height > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\mathtext.py", > line 1569, in __call__ > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\mathtext.py", > line 578, in __init__ > RuntimeError: Could not open facefile > c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplo > tlib\mpl-data\fonts\ttf\cmtt10.ttf; > Cannot_Open_Resource > > > -- > -- > > -- > --- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for just about anything > Open Source. > http://sourceforge.net/services/buy/index.php > > > -- > -- > > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system and destroy any copies thereof. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Matplotlib-users mailing list Matplotlib-users@lists.sour
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
This bug is that many font files were being opened than needed, but they were still all getting closed. Much earlier, someone else fixed a bug where they weren't getting closed at all. http://sourceforge.net/tracker/index.php?func=detail&aid=1695171&group_id=80706&atid=560720 http://sourceforge.net/tracker/index.php?func=detail&aid=1715662&group_id=80706&atid=560720 Cheers, Mike John Hunter wrote: > On Dec 11, 2007 8:17 AM, Michael Droettboom <[EMAIL PROTECTED]> wrote: >> I believe this is a known bug with 0.90.1. Are you able to run 0.91.1? > > If I am reading this right, according to the svn log, you fixed this in > > r4633 | mdboom | 2007-12-05 14:28:28 -0600 (Wed, 05 Dec 2007) | 2 lines > > Fix bug where font files were opened many more times than they need to be. > > and 0.91.1 was released at r4517. So this fix may not be out until > the 0.91.2 point release. Or were you referring to a different fix? > > JDH -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
On Dec 11, 2007 8:17 AM, Michael Droettboom <[EMAIL PROTECTED]> wrote: > I believe this is a known bug with 0.90.1. Are you able to run 0.91.1? If I am reading this right, according to the svn log, you fixed this in r4633 | mdboom | 2007-12-05 14:28:28 -0600 (Wed, 05 Dec 2007) | 2 lines Fix bug where font files were opened many more times than they need to be. and 0.91.1 was released at r4517. So this fix may not be out until the 0.91.2 point release. Or were you referring to a different fix? JDH - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
Re: [Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
I believe this is a known bug with 0.90.1. Are you able to run 0.91.1? Cheers, Mike [EMAIL PROTECTED] wrote: > I'm doing a parameter fitting exercise, and plotting the progress as I > do so. I have found that repeated calls to set_text() on a text object > will result in an error opening a font file iff the text uses TeX > formatting. (I am not using the experimental usetex feature). > > I speculate that matplotlib is opening the font file anew with each call > to set_text and never closing it, resulting ultimately in having too > many files open. Here is a brief program to reproduce this behavior > (WinXP, Py2.5, matplotlib 0.90.1): > > > from pylab import figure, axes, draw, ion > from numpy import array, cos, abs > ion() > fig=figure() > axs=axes() > x=array(range(100))/10.0 > cosPlot=axs.plot( x, cos(x)**2, 'r' ) > powText = axs.text(0.9,0.02,r'$\alpha=$', > horizontalalignment='left',verticalalignment='bottom', > transform = axs.transAxes) > draw() > for alpha in array(range(10,400))/100.0: > axs.lines[-1].set_ydata( abs(cos(x))**alpha) > powText.set_text(r'$\alpha=%.4g$'%alpha) > print alpha > draw() > > > > > > Traceback (most recent call last): > File "delme.py", line 16, in > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\pylab.py", > > line 754, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\backends\backend_tkagg.py", > > line 154, in draw > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\backends\backend_agg.py", > > line 392, in draw > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\figure.py", > > line 601, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\axes.py", > > line 1286, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\text.py", > > line 410, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\text.py", > > line 255, in _get_layout > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\backends\backend_agg.py", > > line 246, in get_text_width_height > > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\mathtext.py", > > line 1569, in __call__ > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\mathtext.py", > > line 578, in __init__ > RuntimeError: Could not open facefile > c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplotlib\mpl-data\fonts\ttf\cmtt10.ttf; > > Cannot_Open_Resource > > > > > - > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > > > > > ___ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php ___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
[Matplotlib-users] Repeated calls to set_text using TeX formatting results in RuntimeError
> I'm doing a parameter fitting exercise, and plotting the progress as I > do so. I have found that repeated calls to set_text() on a text > object will result in an error opening a font file iff the text uses > TeX formatting. (I am not using the experimental usetex feature). > > I speculate that matplotlib is opening the font file anew with each > call to set_text and never closing it, resulting ultimately in having > too many files open. Here is a brief program to reproduce this > behavior (WinXP, Py2.5, matplotlib 0.90.1): > > > from pylab import figure, axes, draw, ion > from numpy import array, cos, abs > ion() > fig=figure() > axs=axes() > x=array(range(100))/10.0 > cosPlot=axs.plot( x, cos(x)**2, 'r' ) > powText = axs.text(0.9,0.02,r'$\alpha=$', > > horizontalalignment='left',verticalalignment='bottom', > transform = axs.transAxes) > draw() > for alpha in array(range(10,400))/100.0: > axs.lines[-1].set_ydata( abs(cos(x))**alpha) > powText.set_text(r'$\alpha=%.4g$'%alpha) > print alpha > draw() > > > > > > Traceback (most recent call last): > File "delme.py", line 16, in > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\pylab.py", line 754, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_tkagg.py", line 154, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_agg.py", line 392, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\figure.py", line 601, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\axes.py", line 1286, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\text.py", line 410, in draw > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\text.py", line 255, in _get_layout > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\backends\backend_agg.py", line 246, in get_text_width_height > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\mathtext.py", line 1569, in __call__ > File > "C:\Python25\Lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matpl > otlib\mathtext.py", line 578, in __init__ > RuntimeError: Could not open facefile > c:\Python25\lib\site-packages\matplotlib-0.90.1-py2.5-win32.egg\matplo > tlib\mpl-data\fonts\ttf\cmtt10.ttf; Cannot_Open_Resource This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system and destroy any copies thereof. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php___ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
