Infinite line only visible at the edges of the bounding rectangle in plotItem

Eric Evarts

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Sep 1, 2015, 9:11:40 PM9/1/15

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I am having an issue where I am trying to use cross hairs similar to what is used in the example, but sometimes my infinite lines are not visible. This seems to happen the most when my x- or y-axis scale is down at 10^-15. When I zoom out, the lines are again visible. Is there some kind of limitation I am missing or is this a bug?

Vincent Le Saux

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Sep 3, 2015, 2:10:47 AM9/3/15

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Hi,

Could you provide a minimal example? I will try to reproduce the problem on my machine...

Vincent

Eric Evarts

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Sep 3, 2015, 10:55:49 AM9/3/15

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This code should reproduce the problem

import pyqtgraph
aPlot = pyqtgraph.plot()
aLine = pyqtgraph.InfiniteLine(angle=90)
aPlot.addItem(aLine)
aPlot.setYRange(-1e-15,1e-15,padding=None)

Thanks for your help.

Eric Evarts

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Sep 3, 2015, 10:57:30 AM9/3/15

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I should also probably mention I'm using pyqtgraph 0.9.10, python 3.4.2 64 bit, pyqt4, on Windows.

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