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  1. Qt
  2. QTBUG-72630

Wrong value from BezierSpline QEasingCurve

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • None
    • 5.12.0
    • Core: Animation Framework
    • None
    • c54083ff933830a28f43551b9c3b132bfb11492d (qt/qtbase/5.15)

    Description

      QEasingCurve ease(QEasingCurve::BezierSpline);
      ease.addCubicBezierSegment(QPointF(0.167,0), QPointF(0.5,1), QPointF(1,1));
      qDebug() << ease.valueForProgress(1.0);

      Prints out 0 instead of the correct 1.

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        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-76781 easing.type: Easing.Bezier last value isn't the "to" value

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-67061 QEasingCurve::valueForProgress returns nan when control points are 1/3 apart

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          For Gerrit Dashboard: QTBUG-72630
          # Subject Branch Project Status CR V
          248660,2 Animation: Use fuzzy comparison for quadratic solutions in QEasingCurve 5.12 qt/qtbase Status: NEW -1 0
          276796,3 Fix QEasingCurve possible imprecision at endpoints 5.14 qt/qtbase Status: MERGED +2 0

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              vgt Eirik Aavitsland
              vgt Eirik Aavitsland
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              Dates

                Created:
                Updated:
                Resolved:

                Gerrit Reviews

                  There is 1 open Gerrit change