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Description
Trying to replaceplt.subplots_adjust withplt.tight_layout in the pyplot tutorialpyplot_scales.py (see#6779), seems to results in errors.
- Matplotlib version, Python version and Platform (Windows, OSX, Linux ...):
- Linux (at least Archlinux and CentOs 7)
- Tested on mpl 1.5.1 from Anaconda and mpl 2.0.0b3.post1799+ga4fdd60 from github
- MWE (kind of…):
Based onpyplot_scales.py:
importnumpyasnpimportmatplotlib.pyplotaspltplt.style.use('default')# make up some data in the interval ]0, 1[y=np.random.normal(loc=0.5,scale=0.4,size=1000)y=y[(y>0)& (y<1)]y.sort()x=np.arange(len(y))plt.figure(1)plt.subplot(221)plt.subplot(222)plt.subplot(223)# logitplt.subplot(224)plt.plot(x,y)plt.yscale('logit')#plt.subplots_adjust(top=0.92, bottom=0.08, left=0.10, right=0.95, hspace=0.25,# wspace=0.35)plt.tight_layout()plt.show()
When I run this example withplt.tight_layout instead ofplt.subplots_adjust (or simply no subplot layout adjusting at all), I get these outputs (mpl 2.0.0b3.post1799+ga4fdd60):
- with Qt4Agg backend
In [1]: run pyplot_scales_mwe.py # that's the MWE posted above/home/adrien/matplotlib/lib/matplotlib/transforms.py:380: RuntimeWarning: invalid value encountered in double_scalars return points[1, 0] - points[0, 0]/home/adrien/matplotlib/lib/matplotlib/tight_layout.py:199: RuntimeWarning: invalid value encountered in double_scalars kwargs["wspace"] = hspace / h_axes/home/adrien/matplotlib/lib/matplotlib/axis.py:1008: UserWarning: Unable to find pixel distance along axis for interval padding of ticks; assuming no interval padding needed. warnings.warn("Unable to find pixel distance along axis "/home/adrien/matplotlib/lib/matplotlib/axis.py:1018: UserWarning: Unable to find pixel distance along axis for interval padding of ticks; assuming no interval padding needed. warnings.warn("Unable to find pixel distance along axis "Traceback (most recent call last): File "/home/adrien/matplotlib/lib/matplotlib/backends/backend_qt5agg.py", line 182, in __draw_idle_agg FigureCanvasAgg.draw(self) File "/home/adrien/matplotlib/lib/matplotlib/backends/backend_agg.py", line 464, in draw self.figure.draw(self.renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/figure.py", line 1262, in draw renderer, self, dsu, self.suppressComposite) File "/home/adrien/matplotlib/lib/matplotlib/image.py", line 139, in _draw_list_compositing_images a.draw(renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/axes/_base.py", line 2383, in draw mimage._draw_list_compositing_images(renderer, self, dsu) File "/home/adrien/matplotlib/lib/matplotlib/image.py", line 139, in _draw_list_compositing_images a.draw(renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 1109, in draw ticks_to_draw = self._update_ticks(renderer) File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 942, in _update_ticks tick_tups = [t for t in self.iter_ticks()] File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 885, in iter_ticks majorLocs = self.major.locator() File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1721, in __call__ return self.tick_values(vmin, vmax) File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1726, in tick_values locs = self._raw_ticks(vmin, vmax) File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1674, in _raw_ticks nbins = max(min(self.axis.get_tick_space(), 9), File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 2008, in get_tick_space return int(np.floor(length / size))ValueError: cannot convert float NaN to integerwhich results in
(NB: it's a screenshot becausesavefig complained about the “ValueError: cannot convert float NaN to integer” stuff)
- with TkAgg backend
In [1]: run pyplot_scales_mwe.py # that's again the MWE posted above/home/adrien/matplotlib/lib/matplotlib/transforms.py:380: RuntimeWarning: invalid value encountered in double_scalars return points[1, 0] - points[0, 0]/home/adrien/matplotlib/lib/matplotlib/tight_layout.py:199: RuntimeWarning: invalid value encountered in double_scalars kwargs["wspace"] = hspace / h_axes/home/adrien/matplotlib/lib/matplotlib/axis.py:1008: UserWarning: Unable to find pixel distance along axis for interval padding of ticks; assuming no interval padding needed. warnings.warn("Unable to find pixel distance along axis "/home/adrien/matplotlib/lib/matplotlib/axis.py:1018: UserWarning: Unable to find pixel distance along axis for interval padding of ticks; assuming no interval padding needed. warnings.warn("Unable to find pixel distance along axis "Exception in Tkinter callbackTraceback (most recent call last): File "/home/adrien/anaconda/envs/Python2.7_matplotlib-git/lib/python2.7/lib-tk/Tkinter.py", line 1536, in __call__ return self.func(*args) File "/home/adrien/matplotlib/lib/matplotlib/backends/backend_tkagg.py", line 283, in resize self.show() File "/home/adrien/matplotlib/lib/matplotlib/backends/backend_tkagg.py", line 354, in draw FigureCanvasAgg.draw(self) File "/home/adrien/matplotlib/lib/matplotlib/backends/backend_agg.py", line 464, in draw self.figure.draw(self.renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/figure.py", line 1262, in draw renderer, self, dsu, self.suppressComposite) File "/home/adrien/matplotlib/lib/matplotlib/image.py", line 139, in _draw_list_compositing_images a.draw(renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/axes/_base.py", line 2383, in draw mimage._draw_list_compositing_images(renderer, self, dsu) File "/home/adrien/matplotlib/lib/matplotlib/image.py", line 139, in _draw_list_compositing_images a.draw(renderer) File "/home/adrien/matplotlib/lib/matplotlib/artist.py", line 68, in draw_wrapper return draw(artist, renderer, *args, **kwargs) File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 1109, in draw ticks_to_draw = self._update_ticks(renderer) File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 942, in _update_ticks tick_tups = [t for t in self.iter_ticks()] File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 885, in iter_ticks majorLocs = self.major.locator() File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1721, in __call__ return self.tick_values(vmin, vmax) File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1726, in tick_values locs = self._raw_ticks(vmin, vmax) File "/home/adrien/matplotlib/lib/matplotlib/ticker.py", line 1674, in _raw_ticks nbins = max(min(self.axis.get_tick_space(), 9), File "/home/adrien/matplotlib/lib/matplotlib/axis.py", line 2008, in get_tick_space return int(np.floor(length / size))ValueError: cannot convert float NaN to integerwhich produces an empty figure.
- If this is an image generation bug attach a screenshot demonstrating the issue:
See above. - If this is a regression (Used to work in an earlier version of Matplotlib), please
note where it used to work:
The behavior seems to be the same with mpl 1.5.1 and (at least) both TkAgg and Qt4Agg backends.
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