broken graph with nan values

[dennis engel]

Is it possible to create a broken plot with nan values like this example in matplotlib (http://matplotlib.org/examples/pylab_examples/nan_test.html) ?

If i do the same with pyqtgraph it draws a line at the nan section, but it should be a gap.

has anybody a workaround ?

Thanks 

Dennis

[vas...@gmail.com]

You can try to implement something like in my answer from 10/25/15 in the topic "Discontinuous line plot?". You need to move up-down your cursor and later move it left out of a displayed window to make a line breaks.
Basically: when any nan (or moving out of window in that case) happened, one line plot (and array) is ended and then generate a new plot (and array) on the same graph. I am not sure how to send you a direct link, but the attached file is called "discontinuous_line_plot.py".

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[dennis engel]

After the holidavs, I 've tried it. But "discontinuous_line_plot.py" doesn't work for me. It draws no gaps on my systems. So it read the PlotDataItem.py documentation and file and found a solution that's working for me.

The solution is the "connect" paramter. It can be "all", "pair" or a array. 

ipython Commandline example:

import pyqtgraph as pg

import numpy as np

pg.plot(np.random.normal(size=10), connect=np.array([1,1,1,1,0,0,1,1,1,1]))

A added a example file for updating a graph.

Have Fun

Dennis