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How to make matplotlib charts fast update & alternative for matplotlib

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  • P Offline
    P Offline
    Piyush
    wrote on 27 Feb 2018, 10:35 last edited by
    #1

    Hi,

    I am currently working on a project which require quick updates of 4-5 charts on press of a button. I used matplotlib for the same. However, the Qt application gets really slow after one or two iteration of updating chart and ends up not responding.

    Is there any other alternative for matplotlib for PyQt5 which is compatible with Python?

    I searched a few of them, i.e., OpenGL, Plotly and PyQwt. Which one would you think is better in terms of fast updates which included redrawing axis and labels apart from the plot lines themselves.

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    • M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 27 Feb 2018, 17:17 last edited by
      #2

      Hi
      I would try Qwt. It was pretty fast for me.

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      • P Offline
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        Piyush
        wrote on 28 Feb 2018, 07:09 last edited by Piyush
        #3

        @mrjj Is it compatible with PyQt5?

        J M 2 Replies Last reply 28 Feb 2018, 07:36
        0
        • P Piyush
          28 Feb 2018, 07:09

          @mrjj Is it compatible with PyQt5?

          J Offline
          J Offline
          jsulm
          Lifetime Qt Champion
          wrote on 28 Feb 2018, 07:36 last edited by
          #4

          @Piyush As stated here it is http://qwt.sourceforge.net/

          https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • P Piyush
            28 Feb 2018, 07:09

            @mrjj Is it compatible with PyQt5?

            M Offline
            M Offline
            mrjj
            Lifetime Qt Champion
            wrote on 28 Feb 2018, 07:36 last edited by
            #5

            @Piyush
            Hi
            it seems so judging from the name
            http://pyqwt.sourceforge.net/
            ( PyQwt-5.2.x )

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            1/5

            27 Feb 2018, 10:35

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