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Amanda Bissette
385
Rotating 3D xamChart
posted

Hi,

In the ultraWinChart component there was built in support allowing the end user to hold the ALT key + moving their mouse around to rotate a 3D chart.  Is this same behavior possible in the WPF xamChart?  If not, will it be in the future?

Thanks,

//abissette

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  • 17605
    posted

    Currently such built-in functionality is not available, but you can try using the following code: 

     

    public partial class Window1 : Window

    {

    private double xTheta = 0; private double yTheta = 0;

    private Point prevPoint = new Point(0, 0);

    public Window1()

    {

    InitializeComponent();

    this.MouseLeftButtonDown += new MouseButtonEventHandler(Window1_MouseLeftButtonDown);

    this.MouseMove += new MouseEventHandler(Window1_MouseMove);

    }

    void Window1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)

    {

    this.prevPoint = e.GetPosition(null);

    }

    void Window1_MouseMove(object sender, MouseEventArgs e)

    {

    if (e.LeftButton != MouseButtonState.Pressed || System.Windows.Input.Keyboard.Modifiers != ModifierKeys.Alt)

    {

    return;

    }

    Point pt = e.GetPosition(null);

    if (prevPoint.X == 0 && prevPoint.Y == 0)

    {

    prevPoint = pt;

    return;

    }

    yTheta += (prevPoint.X - pt.X) * 360 /     this.ActualWidth;

    xTheta += (prevPoint.Y - pt.Y) * 360 / this.ActualHeight;

    AxisAngleRotation3D angleRotationY = new AxisAngleRotation3D(new Vector3D(0.131, -0.991, 0.36), yTheta);

    RotateTransform3D rotateTransformY = new RotateTransform3D(angleRotationY);

    AxisAngleRotation3D angleRotationX = new AxisAngleRotation3D(new Vector3D(-0.991, 0.131, 0.36), xTheta);

    RotateTransform3D rotateTransformX = new RotateTransform3D(angleRotationX);

    Transform3DGroup transformGroup = new Transform3DGroup();

    transformGroup.Children.Add(rotateTransformY);

    transformGroup.Children.Add(rotateTransformX);

    this.xamChart.Transform3D = transformGroup;

    prevPoint = pt;

    }

    }

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