Closed RichardWaiteSTFC closed 2 years ago
When trying to reproduce this, I found a slightly different and possibly related error. Happened when zooming out of the data and then zooming in to a region with no data. I then switched to Log
with Autoscaling
still checked:
Traceback (most recent call last):
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\backends\backend_qt5.py", line 506, in _draw_idle
self.draw()
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\backends\backend_agg.py", line 388, in draw
self.figure.draw(self.renderer)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\figure.py", line 1708, in draw
mimage._draw_list_compositing_images(
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\axes\_base.py", line 2647, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\collections.py", line 2020, in draw
self.update_scalarmappable()
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\collections.py", line 763, in update_scalarmappable
self._facecolors = self.to_rgba(self._A, self._alpha)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\cm.py", line 289, in to_rgba
x = self.norm(x)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colors.py", line 1096, in __call__
raise ValueError("values must all be positive")
ValueError: values must all be positive
Traceback (most recent call last):
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\backends\backend_qt5.py", line 506, in _draw_idle
self.draw()
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\backends\backend_agg.py", line 388, in draw
self.figure.draw(self.renderer)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\figure.py", line 1708, in draw
mimage._draw_list_compositing_images(
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\axes\_base.py", line 2647, in draw
mimage._draw_list_compositing_images(renderer, self, artists)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 135, in _draw_list_compositing_images
a.draw(renderer)
File "c:\users\mlc47243\documents\mantid-development\mantid-4\mantid\framework\pythoninterface\mantid\plots\resampling_image\samplingimage.py", line 75, in draw
super().draw(renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\artist.py", line 38, in draw_wrapper
return draw(artist, renderer, *args, **kwargs)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 618, in draw
im, l, b, trans = self.make_image(
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 879, in make_image
return self._make_image(
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\image.py", line 482, in _make_image
output = self.norm(np.ma.masked_array(A_resampled, out_mask))
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colors.py", line 1096, in __call__
raise ValueError("values must all be positive")
ValueError: values must all be positive
I also got a similar error when switching to SymmetrixLog10
:
Traceback (most recent call last):
File "c:\users\mlc47243\documents\mantid-development\mantid-4\mantid\qt\python\mantidqt\mantidqt\widgets\colorbar\colorbar.py", line 210, in norm_changed
self.set_mappable(self.colorbar.mappable)
File "c:\users\mlc47243\documents\mantid-development\mantid-4\mantid\qt\python\mantidqt\mantidqt\widgets\colorbar\colorbar.py", line 154, in set_mappable
self.colorbar = Colorbar(ax=self.ax, mappable=mappable)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 1183, in __init__
ColorbarBase.__init__(self, ax, **kw)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 460, in __init__
self.draw_all()
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 493, in draw_all
self._config_axes(X, Y)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 727, in _config_axes
self.update_ticks()
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 614, in update_ticks
ticks, ticklabels, offset_string = self._ticker(locator, formatter)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\colorbar.py", line 850, in _ticker
b = np.array(locator())
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\ticker.py", line 2439, in __call__
return self.tick_values(vmin, vmax)
File "C:\Users\mlc47243\Documents\mantid-development\mantid-4\mantid\external\src\ThirdParty\lib\python3.8\lib\site-packages\matplotlib\ticker.py", line 2527, in tick_values
decades.extend(b ** (np.arange(c_range[0], c_range[1], stride)))
ValueError: arange: cannot compute length
This is caused by the negative value in the box above the normalisation
(1) Load in
CNCS_7860_event.nxs
- zoom into a region that contains zero bins (2) Change colorscale to Log