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Description
Bug report
Bug summary
When setting the linewidth to a value close to zero (like 1e-15) and having a dashed linestyle in a pyplot, the application freezes.
Code for reproduction
from matplotlib import pyplot as plt
x = [0,1]
y = [0,1]
p = plt.plot(x,y, ls = "--", lw = 0.1, ms = 0.1, marker = "o", alpha = 1.0)
# ok
# plt.setp(p, lw = 1e-3)
# freeze
plt.setp(p, lw = 1e-15)
plt.show()Actual outcome
The window opens but no plot (not even axis) is shown, instead the window is not responding.
Expected outcome
Primary Expectation: The application should not freeze.
Secondary Expectation: Show either no line at all or as thin as displayable.
Matplotlib version
- Operating system: Windows 7
- Matplotlib version: 2.2.4 (same with 3.1.0)
- Matplotlib backend (
print(matplotlib.get_backend())): TkAgg (same with Qt5Agg/PySide2) - Python version: 3.6.5 32bit
installed with pip