[Matplotlib-users] X Window System error

[Mic <mic...@gm...>]

Hi,

I have got the following error with the following code:
*$ python mpl.py*
*Traceback (most recent call last):*
*  File
"/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtk.py",
line 398, in expose_event*
*    self._render_figure(self._pixmap, w, h)*
*  File
"/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_gtkagg.py",
line 75, in _render_figure*
*    FigureCanvasAgg.draw(self)*
*  File
"/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py",
line 416, in draw*
*    self.renderer = self.get_renderer()*
*  File
"/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py",
line 435, in get_renderer*
*    self.renderer = RendererAgg(w, h, self.figure.dpi)*
*  File
"/usr/lib64/python2.7/site-packages/matplotlib/backends/backend_agg.py",
line 72, in __init__*
*    self._renderer = _RendererAgg(int(width), int(height), dpi,
debug=False)*
*ValueError: width and height must each be below 32768*
*The program 'mpl.py' received an X Window System error.*
*This probably reflects a bug in the program.*
*The error was 'BadAlloc (insufficient resources for operation)'.*
*  (Details: serial 486 error_code 11 request_code 53 minor_code 0)*
*  (Note to programmers: normally, X errors are reported asynchronously;*
*   that is, you will receive the error a while after causing it.*
*   To debug your program, run it with the --sync command line*
*   option to change this behavior. You can then get a meaningful*
*   backtrace from your debugger if you break on the gdk_x_error()
function.)*

With the following code:
*import random

                                          *
*import matplotlib.pyplot as plt

                                          *
*

                                          *
*coverages = [random.randint(1,10)*2] * 4605

                                          *
*contig_names = ['AAB0008r'] * len(coverages)

                                         *
*# Set the figure size

                                          *
*#fig = plt.figure(1, [20, 2])

                                          *
*fig = plt.figure(figsize=(int(len(coverages)*0.1), 4))

                                         *
*

                                          *
*ax = fig.add_subplot(111)

                                          *
*

                                          *
*# Set the x-axis limit

                                         *
*#ax.set_xlim(-1,100)

                                         *
*ax.set_xlim(0,len(coverages))

                                          *
*#ax.set_ylim(0,3)

                                          *
*ax.yaxis.grid(True, linestyle='-', which='major', color='grey', alpha=0.5)

                                         *
*

                                          *
*ind = range(len(coverages))

                                          *
*rects = ax.bar(ind, coverages, width=0.1, align='center', color='thistle')

                                         *
*ax.set_xticks(ind)

                                         *
*#ax.set_xticklabels(contig_names)*
*#ax.tick_params(axis='both', which='major', labelsize=10)*
*#ax.tick_params(axis='both', which='minor', labelsize=8)*
*
*
*
*
*#function to auto-rotate the x axis labels*
*fig.autofmt_xdate()*
*plt.setp(ax.get_xticklabels(), fontsize=8, rotation='vertical')*
*plt.show()*

How is it possible to get big charts?

Thank you in advance.