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Shape and Canvas Performance

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  • J Offline
    J Offline
    JW3153
    wrote on last edited by
    #1

    I am implementing some custom custom graphing components in our Qt application (QML) and I was wondering if anyone had advice on the most performant of the following two solutions:

    Using Shape components with corresponding ShapePath for drawing the relevant parts
    or
    Using Canvas components with corresponding Path + onPaint for drawing relevant parts.

    The intention will be to have possibly 100's of these Canvas or Shape components on screen at once (dynamically added and removed as needed) and I from my reading I believe Shape might struggle with having many on screen at one time despite it being the "newer" solution (please correct if I am wrong)

    Any advise will be sincerely appreciated.

    J.HilkJ 1 Reply Last reply
    0
    • J JW3153

      I am implementing some custom custom graphing components in our Qt application (QML) and I was wondering if anyone had advice on the most performant of the following two solutions:

      Using Shape components with corresponding ShapePath for drawing the relevant parts
      or
      Using Canvas components with corresponding Path + onPaint for drawing relevant parts.

      The intention will be to have possibly 100's of these Canvas or Shape components on screen at once (dynamically added and removed as needed) and I from my reading I believe Shape might struggle with having many on screen at one time despite it being the "newer" solution (please correct if I am wrong)

      Any advise will be sincerely appreciated.

      J.HilkJ Offline
      J.HilkJ Offline
      J.Hilk
      Moderators
      wrote on last edited by
      #2

      hi @JW3153

      I can't really recommend either, as I don't know enough about them. But I would like to add to the confusion and add a 3rd option

      QQuickPaintedItem

      :)


      Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


      Q: What's that?
      A: It's blue light.
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      A: It turns blue.

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