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  1. Qt
  2. QTBUG-25036

QGraphicsView artifacts in 4.8

    XMLWordPrintable

Details

    • Bug
    • Resolution: Done
    • P1: Critical
    • 4.8.5, 5.0.2
    • 4.8.0
    • GUI: Painting
    • None
    • Ubuntu Linux 10.04 LTS (64bit)
      intel core 2 duo
      QtSDK 4.8 (32 and 64 bit versions)
    • c7191d3e214b9cdb17ec383b61f7e21e784f80d0 (5.0.2) a2d573ac8e72315e60d4b17903d3035adffb8b18 (4.8)

    Description

      This bug affects the rendering system of QGraphicsView.
      It happens when you move a QGraphicsItem (an ellipse in the attached example)
      over a QGraphicsPathItem. In the example you have to move the ellipse from left to write.
      The artifacts appear for given slopes of the line path.
      I attached some figures to better explain the result.

      QtSDK 4.7.4 is not affected by this behavior.

      Attachments

        1. Screenshot-artifact_a.png
          Screenshot-artifact_a.png
          3 kB
        2. Screenshot-artifact_b.png
          Screenshot-artifact_b.png
          3 kB
        3. Screenshot_before.png
          Screenshot_before.png
          3 kB
        4. main.cpp
          0.8 kB
        5. path_artifacts.png
          path_artifacts.png
          0.6 kB
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        Activity

          People

            rodal Samuel Rødal
            dp Massimiliano De Pierro
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            Dates

              Created:
              Updated:
              Resolved:

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