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Thread: How to draw arc between two points.

  1. #1
    Join Date
    May 2010
    Qt products
    Qt3 Qt4 Qt/Embedded
    MacOS X Unix/X11 Windows Symbian S60

    Default How to draw arc between two points.

    Hi to all.
    I want to draw arc between two points with center point known .

  2. #2
    Join Date
    Jan 2006
    Napoli, Italy
    Thanked 86 Times in 81 Posts
    Qt products
    Qt3 Qt4
    Unix/X11 Windows

    Default Re: How to draw arc between two points.

    As you know from Qt Docs, QPainter::drawArc requires a QRect, a startAngle and stopAngle.

    If you know the arc center point e the other two points you can calculate theese values using basic 2D geometry calculation
    Last edited by mcosta; 19th April 2011 at 13:55. Reason: reformatted to look better
    A camel can go 14 days without drink,
    I can't!!!

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