Rotatable shape

[Joost]

I'm looking for a way to rotate shapes drawn onto the map so that I can align measured GPS potions with their heading. I have tried using the TriangleUp class and added a RotateTransform as it's RenderTransform but I can't get the shape to rotate. Any Idea how i can rotate the shapes?

[Oliver Heilig]

Hello Joost,

you can rotate any WPF element for the map using the RenderTransform property. One caveat: You cannot directly set the RenderTransform of the element. Because the RenderTransform set by the map control, you need to put it in a container first. Here's a sample to rotate the ballons for https://github.com/ptv-logistics/xserve ... ultiCanvas

Oli

Code: Select all

public void AddBalloon(MultiCanvasShapeLayer layer, double lat, double lon, Color color, string text, string tooltip)
{
    // create and initialize balloon
    var balloon = new Balloon
    {
        Color = color,
        Text = text,
        ToolTip = tooltip,
        RenderTransform = new RotateTransform(45), // rotation
        RenderTransformOrigin = new System.Windows.Point(0.5, 0.5) // rotation center
    };

    var balloonContainer = new Grid();
    balloonContainer.Children.Add(balloon);

    // set geo location
    ShapeCanvas.SetLocation(balloonContainer, new System.Windows.Point(lon, lat));

    // optional use adaptive (zoom-dependent scaling)
    ShapeCanvas.SetScale(balloonContainer, 2.5);
    ShapeCanvas.SetScaleFactor(balloonContainer, 0.1);

    // add to map
    layer.TopShapes.Add(balloonContainer);
}

[Joost]

Works like a charm. Thnx for the info.