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Thread: KDChart Axis and Circles

  1. #1
    Join Date
    Sep 2011
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    Default KDChart Axis and Circles

    hello

    i have two questions about kdcharts. i searched the forum and did not find any solutions:

    1. is it possible to restrict my plot to a specified interval. i am plotting 2d data and kdcharts draws the y-Axis beginning at 0, allthough all of my y-values are above 35. I would like to let the axis only start at 30. any hints?

    2. in this plot I would like to highlight special coordinates of my function by drawing a circle or anything visual at these position.

    Can anyone help me on these points?

    thx in advance
    sas

  2. #2
    Join Date
    Apr 2012
    Posts
    1
    Qt products
    Qt4
    Platforms
    Windows

    Default Re: KDChart Axis and Circles

    CartesianCoordinatePlane has a member function: setVerticalRange(QPair< qreal, qreal > ) which you can check out from their references
    You may use it like the following:

    CartesianCoordinatePlane* plane = new CartesianCoordinatePlane;
    QPair< qreal, qreal > yRange(start,end);
    plane->setVerticalRange(yRange);
    ///////////////////////////////////////////////////////////////////////////

    m_chart->replaceCoordinatePlane(plane);
    m_chart->coordinatePlane()->replaceDiagram(m_diagram);

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