ValueError: array of sample points is empty when plotting trajectories (e.g., in SuperAnimal inference) #2512
Description
Is there an existing issue for this?
- I have searched the existing issues
Bug description
When plotting trajectories of a bodypart where no predictions are made (or all are below the plotting threshold), matplotlib versions 3.7.0 and 3.7.1 fail with error ValueError: array of sample points is empty.
This issue cannot be reproduced with matplotlib<3.7.0 and matplotlib>=3.7.2 (it was fixed by matplotlib/matplotlib#25978).
Operating System
macOS
DeepLabCut version
dlc version 2.3.8
DeepLabCut mode
multi animal
Device type
gpu
Steps To Reproduce
No response
Relevant log output
Traceback (most recent call last):
File "/DeepLabCut/deeplabcut/utils/plotting.py", line 398, in _plot_trajectories
PlottingResults(
File "/DeepLabCut/deeplabcut/utils/plotting.py", line 109, in PlottingResults
ax1.plot(temp_x, temp_y, ".", color=colors(bpindex), alpha=alphavalue)
File "/.../site-packages/matplotlib/axes/_axes.py", line 1690, in plot
self.add_line(line)
File "/.../site-packages/matplotlib/axes/_base.py", line 2304, in add_line
self._update_line_limits(line)
File "/.../site-packages/matplotlib/axes/_base.py", line 2327, in _update_line_limits
path = line.get_path()
File "/.../site-packages/matplotlib/lines.py", line 1029, in get_path
self.recache()
File "/.../site-packages/matplotlib/lines.py", line 681, in recache
self._x_filled[nanmask] = np.interp(
File "<__array_function__ internals>", line 180, in interp
File "/.../site-packages/numpy/lib/function_base.py", line 1594, in interp
return interp_func(x, xp, fp, left, right)
ValueError: array of sample points is emptyAnything else?
No response
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