Jump in trace during scale transition
Trace changes abruptly in ways hard to understand when zooming in.
To recreate with LHO data:
ndscope -t 1295137995 -t 1295286894 H1:DAQ-DC0_UPTIME_SECONDS
A trace showing a single sawtooth should appear.
And right-click zoom on pretty much any point. Eventually the trace will just disappear.
The following error is generated at the same time:
/usr/lib/python3/dist-packages/pyqtgraph/graphicsItems/PlotCurveItem.py:131: RuntimeWarning: All-NaN slice encountered
b = (np.nanmin(d), np.nanmax(d))