Draw a quadTo curve with curve length


  • Banned

    To draw a quad to curve using QPainterPath we need to have a start point and end point and a control point.

    [code]
    QPoint pointStart, pointEnd, C;
    QPainterPath path;
    path.moveTo(pointStart)
    path.quadTo(C, pointEnd)
    [/code]

    Now i dont have the control point but instead I have the length of the curve...Can we calculate one control point using start point, end point and curve length?... Any suggestions highly appreciated. Thanks Sujan


  • Moderators

    whats the sense of opening a new thread with exactly the same question like in the "old thread":http://qt-project.org/forums/viewthread/35134/ from yesterday?!

    The answer is still the same... you have to do the math. If you can't do that than a math related forum can help you more.


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