Hello everyone,I'm facing a problem in my application with the update of a waveform chart combined with the property "defer panel updates"; unfortunately I can't attach code, I'll try to descrive it as clearly as possible: the VI where this happens has a queued state machine that periodically executes an update of the HMI, and another parallel loop that sends to two waveform charts data received from another queue. Since the HMI update requires some property nodes, I considered the idea of deferring panel updates from its beginning to its ending. However, I noticed that this causes my chart to go a bit crazy: if I always leave the "defer panel updates" to false, then everything works fine:If I set the property to true before the HMI update starts and write it back to false after it's finished, then the chart looks often like this:The two pictures were taken just a few seconds away from each other, while the graph was receiving always the same data.There is to say that, being the graph update performed in a different loop from the HMI update, I haven't got the control of the synchronization between these two operation; however, this is a behaviour I didn't expect: in my mind, if a chunk of data arrives to the graph while the panel updates are deferred, the graph should simply stay still and plot all the new data the first time it is updated with the "defer panel updates" written to false.I made a quick search on the forum, and found this and this threads, but the questions raised seem to be different. Has anyone encountered the same problem?The application is developed with LabVIEW 2012 and runs on a Windows 7 machine.

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Sinan_Ismael ha scritto:
Hey
Please could you tell what you mean by rescale the chart ? Because I am having the same problem.
Thanks
Sinan
CLAD

Hello Sinan, by "rescaling the chart" we mean modifying the x or y scale range values.

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