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  1. Qt
  2. QTBUG-126662

2D Graphs: low performance on scrolling axis

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    • 8ce32d6d5 (dev), 02cadf0b2 (6.8), 3423163a2 (dev), 6a24f00f8 (dev), cf3f629e3 (6.8)

      The use case is:

      • A cpp data source being updated constantly;
      • A 2D line graph drawing based on the data, where the x axis moves to show the new data received;
      • The ability to scroll "back" and see previously added data.

      With the provided code, we see the performance drastically decrease after ca. 1000 points added. 

        1. GraphsSlowdown.zip
          2 kB
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            kagro Kaj Grönholm
            mastambo Maycon Stamboroski
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              Created:
              Updated:
              Resolved:

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