Ok, I've just read the thread "Repeated calls to set_text using TeX
formatting results in RuntimeError" which looked very similar to our problem
and after applying the fix which is suggested there by Michael Droettboom
(see below), the problem seems to disappear. Let's hope this gets fixed in
0.91.2.
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...)
On Dec 12, 2007 8:32 PM, Armando Serrano Lombillo <[EMAIL PROTECTED]>
wrote:
> I'm running into the very same problem. I'm using matplotlib from a
> wxPython application, the same versions as you (Yongtao Cui), and I get the
> same error (see below) after repainting a figure many times. In my case I
> plot several figures (16 figures) and I get the error with very few
> repaintings. This didn't happen with matplotlib 0.90.1.
>
> Any fix besides going back to matplotlib 0.90.1?
>
>
> Traceback (most recent call last):
> Traceback (most recent call last):
> File "C:\Tesis\Programa\visualizador.py", line 93, in on_intervalos
> File "C:\Tesis\Programa\visualizador.py", line 126, in pinta
> File
> "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py", line
> 61, in draw
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 380, in draw
> File "C:\Python25\Lib\site-packages\matplotlib\figure.py", line 612, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axes.py", line 1344, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 596, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 170, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 775, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 317, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 195, in
> _get_layout
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 234, in get_text_width_height_descent
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 301, in _get_agg_font
> RuntimeError: Could not open facefile C:\WINDOWS\Fonts\verdana.ttf;
> Cannot_Open_Resource
>
> File "C:\Tesis\Programa\visualizador.py", line 93, in on_intervalos
> File "C:\Tesis\Programa\visualizador.py", line 126, in pinta
> File
> "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py", line
> 61, in draw
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 380, in draw
> File "C:\Python25\Lib\site-packages\matplotlib\figure.py", line 612, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axes.py", line 1344, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 596, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line 170, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 775, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 317, in
> draw
> File "C:\Python25\Lib\site-packages\matplotlib\text.py", line 195, in
> _get_layout
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 234, in get_text_width_height_descent
> File "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> line 301, in _get_agg_font
> RuntimeError: Could not open facefile C:\WINDOWS\Fonts\verdana.ttf;
> Cannot_Open_Resource
>
>
>
>
> On Dec 5, 2007 3:15 AM, Yongtao Cui <[EMAIL PROTECTED]> wrote:
>
> > I don't know why those spaces always don't show up on the mailing list
> > webpage. They looked fine on my gmail page.
> >
> > The 'test' function only has one 'for' loop. The four lines below the
> > 'for' line are all in the loop.
> >
> >
> >
> > On Dec 4, 2007 8:52 PM, Yongtao Cui <[EMAIL PROTECTED]> wrote:
> > > >>> import pylab
> > > >>> def test(n):
> > > >>> for i in range(n):
> > > >>> f=pylab.figure(1)
> > > >>> f.clf()
> > > >>> a=f.add_axes([0.2, 0.2, 0.6 , 0.6])
> > > >>> a.plot([1,2,3,4,5], 'ro')
> > > >>>
> > >
> > > I tracked down the svn tree. The above script works ok in revision
> > > 3737 and before, but crashes from revision 3738 and after.
> > >
> > > Yongtao
> > >
> > >
> > > On Dec 2, 2007 4:15 PM, Yongtao Cui <[EMAIL PROTECTED]> wrote:
> > > > Below is the minimum code with the right indent
> > > >
> > > > import pylab
> > > > def test(n):
> > > > for i in range(n):
> > > > f=pylab.figure(1)
> > > > f.clf()
> > > > a=f.add_axes([0.2, 0.2, 0.6 , 0.6])
> > > > a.plot([1,2,3,4,5], 'ro')
> > > >
> > > >
> > > > On Dec 2, 2007 4:07 PM, Yongtao Cui <[EMAIL PROTECTED]> wrote:
> > > > > Hi,
> > > > >
> > > > > I got the following error when clearing and plotting on the same
> > > > > figure for many times. I found the following minimum code to
> > reproduce
> > > > > this error. I am using matplotlib-0.91.1 and wxpython2.8 on
> > windows
> > > > > xp. In the matplotlibrc file, I changed the backend to WXAgg and
> > > > > interactive to True.
> > > > >
> > > > > import pylab
> > > > > def test(n):
> > > > > for i in range(n):
> > > > > f=pylab.figure(1)
> > > > > f.clf()
> > > > > a=f.add_axes([0.2, 0.2, 0.6, 0.6])
> > > > > a.plot([1,2,3,4,5], 'ro')
> > > > >
> > > > >
> > > > > The error only happens for a large n. For example, test(10) works
> > > > > fine, but test(50) will cause the error. Also runing test(10) for
> > a
> > > > > few times will also cause the error.
> > > > >
> > > > > Could anyone give me some help?
> > > > >
> > > > > Thanks.
> > > > >
> > > > > The following is the error message:
> > > > >
> > > > > Traceback (most recent call last):
> > > > > File "<input>", line 1, in <module>
> > > > > File "<input>", line 3, in test
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\pyplot.py", line
> > 191, in figure
> > > > > File
> > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wx.py",
> > > > > line 1227, in draw_if_interactive
> > > > > File
> > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_wxagg.py",
> > > > > line 61, in draw
> > > > > File
> > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> > > > > line 380, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\figure.py", line
> > 612, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\axes.py", line
> > 1344, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line
> > 596, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\axis.py", line
> > 170, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\text.py", line
> > 775, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\text.py", line
> > 317, in draw
> > > > > File "C:\Python25\Lib\site-packages\matplotlib\text.py", line
> > 195,
> > > > > in _get_layout
> > > > > File
> > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> > > > > line 234, in get_text_width_height_descent
> > > > > File
> > "C:\Python25\Lib\site-packages\matplotlib\backends\backend_agg.py",
> > > > > line 301, in _get_agg_font
> > > > > RuntimeError: Could not open facefile
> > > > >
> > C:\Python25\lib\site-packages\matplotlib\mpl-data\fonts\ttf\Vera.ttf;
> > > > > Cannot_Open_Resource
> > > > >
> > > >
> > >
> >
> >
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