Annotation.RuntimeRotation Property
Specifies whether it’s allowed to rotate the annotation at runtime.
Namespace: DevExpress.XtraCharts
Assembly: DevExpress.XtraCharts.v24.2.dll
Declaration
[XtraChartsLocalizableCategory(XtraChartsCategory.Behavior)]
public bool RuntimeRotation { get; set; }Property Value
| Type | Description |
|---|---|
| Boolean | true to allow runtime rotation of the annotation; otherwise, false. |
Remarks
When the RuntimeRotation property is enabled, at runtime, the annotation displays a handle that can rotate it, using the mouse.
For more information, refer to Annotations.
Example
The following example demonstrates how to create text and image annotations and anchor them to a chart, its pane, and a series point.
#region #usings
using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
using DevExpress.Drawing;
using DevExpress.XtraCharts;
// ...
#endregion #usings
namespace AnnotationsSample {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
#region #generalcode
private void Form1_Load(object sender, EventArgs e) {
// Add a text annotation to the chart control's repository.
chartControl1.AnnotationRepository.Add(new TextAnnotation("Annotation 1"));
// And, assign a series point to the annotation's AnchorPoint property.
// This adds the annotation to the series point's Annotations collection.
chartControl1.AnnotationRepository[0].AnchorPoint =
new SeriesPointAnchorPoint(chartControl1.Series[0].Points[2]);
// Now, create an image annotation, and add it to the chart's collection.
chartControl1.Annotations.AddImageAnnotation("Annotation 2",
DXImage.FromStream(new FileStream(@"...\...\image.png", FileMode.Open, FileAccess.Read, FileShare.Read)));
// Define the X and Y absolute coordinates for the annotation, in pixels.
((ChartAnchorPoint)chartControl1.Annotations[0].AnchorPoint).X = 150;
((ChartAnchorPoint)chartControl1.Annotations[0].AnchorPoint).Y = 150;
// Obtain the additional pane from the diagram's collection.
XYDiagramPaneBase myPane = ((XYDiagram)chartControl1.Diagram).Panes[0];
// And, position the chart's annotation in this pane's right top corner;
((FreePosition)chartControl1.Annotations[0].ShapePosition).DockTarget = myPane;
((FreePosition)chartControl1.Annotations[0].ShapePosition).DockCorner = DockCorner.RightTop;
// Another annotation is now being added to the collection of this pane.
myPane.Annotations.AddImageAnnotation("Annotation 3",
DXImage.FromStream(new FileStream(@"...\...\image.png", FileMode.Open, FileAccess.Read, FileShare.Read)));
// Define its axis coordinates (in units appropriate for the scale type of the axes).
((PaneAnchorPoint)myPane.Annotations[0].AnchorPoint).AxisXCoordinate.AxisValue = 2;
((PaneAnchorPoint)myPane.Annotations[0].AnchorPoint).AxisYCoordinate.AxisValue = 180;
// Position the annotation in relation to its anchor point.
((RelativePosition)myPane.Annotations[0].ShapePosition).Angle = -135;
((RelativePosition)myPane.Annotations[0].ShapePosition).ConnectorLength = 50;
// You can get an annotation either via the collection of the element to which it is anchored,
// or centrally, via the chart control's repository (e.g. by its name).
TextAnnotation myTextAnnotation =
(TextAnnotation)chartControl1.AnnotationRepository.GetElementByName("Annotation 1");
ImageAnnotation myImageAnnotation =
(ImageAnnotation)chartControl1.AnnotationRepository.GetElementByName("Annotation 3");
// Define the text for the text annotation.
myTextAnnotation.Text = "<i>Basic</i> <b>HTML</b> <u>is</u> <color=blue>supported</color>.";
// Enable the interactive positioning for the image annotation.
myImageAnnotation.RuntimeMoving = true;
myImageAnnotation.RuntimeAnchoring = true;
myImageAnnotation.RuntimeResizing = true;
myImageAnnotation.RuntimeRotation = true;
// Specify image annotation size mode.
myImageAnnotation.SizeMode = ChartImageSizeMode.Tile;
// And, adjust image annotation appearance options.
myImageAnnotation.ShapeKind = ShapeKind.RoundedRectangle;
myImageAnnotation.ShapeFillet = 10;
myImageAnnotation.ConnectorStyle = AnnotationConnectorStyle.Arrow;
}
#endregion #generalcode
}
}
Related GitHub Examples
The following code snippet (auto-collected from DevExpress Examples) contains a reference to the RuntimeRotation property.
Note
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