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Problem with XControls and Waveform Chart



I tried to program an XControl containing a Waveform Chart. Additionally it should do a couple of other things (filtering certain values, calculate a mean value, etc.). I thought that I could use the "Data Change" event to pass the incoming data to the Waveform Chart. Generally this works but only if the value really *changed*, i.e. if the same value comes in several times, it is only displayed once. This is not what I want as I want it to display measurement data. Is there a way to achieve this (update the waveform chart whenever the data flow reaches the XControl). If not, how does the Waveform Chart itself do it?

My Labview version is 8.2.1. I really hope that somebody can help me.



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Please post a zip of your project along with a simple demo that shows what you are having trouble with. Lacking the code example, I can only guess that you have a WF version of the chart and your "t0" is the same for your updates.


Trying to help,



Retired Senior Automation Systems Architect with Data Science Automation LabVIEW Champion Knight of NI and Prepper LinkedIn Profile YouTube Channel
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nevermind, I found a workaround. The problem together with a workaround is posted here:


However it would be nice to know if this behaviour has changed in newer Labview versions.


Thanks anyway.



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