I am trying to display some data in a line graph - there are 1024 points,
updating ~40 times/second. Some of the points are invalid (set to
float("inf") ) and are supposed to cause a break in the line if I
understand the default behaviour of the "connect" parameter correctly.
However, I am periodically seeing that there is a straight line joining
the valid points either side of the invalid period.
I can stop updating the graph and catch this happening - as soon as I use
the mouse zoom functionality to change the scale of the graph in this state
the erroneous line vanishes, and the graph is drawn with breaks in the line
as I expect that it should.
Can anyone suggest why the erroneous lines are appearing, and how I can
ensure they don't appear?
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