Chart dataset

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  • #3050
    anunia
    Participant

    Hi there, I have a question about Charts because I did change the Minute data writing period to 2 seconds (accordly to http://forum.rapidscada.org/?topic=minimum-data-writing-period) but the Chart keep showing a value every minute.
    Is there a way to change the ‘timebase’ and show a point every 2 seconds? What is the source for charts? -> minute data file?

    FYI: If a get a minute report, the result is a value every 2 seconds, that works fine.

    Regards,

    Alejandro

    #3051
    Mikhail
    Moderator

    Hi,
    Try set “Chart gap” parameter to 1 second in the web app settings.

    #3052
    anunia
    Participant

    Hi Mikhail, thank you so much! You were right, the points were there but I was confused about it because the popup time label on chart just changes every minute. I did try with a Chart Pro demo license and after a zoom in I did verify the dataset was there (I did see the points).

    Finally, I did set the gap to 5 seconds (something diffrente to 1 sec) then I got a curve, better than a cloud of points, and I modified the minStep constant in chart.js to 1 minute (1/60) so I can get more detail in X axis in case of a zoom in.

    Thank you again!
    Regards

    #3054
    Mikhail
    Moderator

    Hi,
    OK 🙂
    Does it fast enough?

    #3057
    anunia
    Participant

    Hi there, I haven´t problems with Chart refresh but I did use just a couple of channels, don’t know with a lot of channels.
    If you are talking about writing period (2 secs), in my case is enough but, sometimes, is necessary a lower period and is a good idea/practice the use of a ‘tick’ variable on every channel then you can select which one save and when, also less than 1 second is a common option in scadas.

    Hope you can apply this changes on future versions, I know you have a lot of work with this project but you are on the right way 🙂

    #3058
    Mikhail
    Moderator

    You right, selecting a period of writing for a channel is a useful idea.

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