Class ChartAnnotation

Inheritance

System.Object

ChartAnnotation

ShapeAnnotation

TextAnnotation

ViewAnnotation

Namespace: Syncfusion.MacOS.Charts.SfChart

Assembly: Syncfusion.SfChart.XForms.macOS.dll

Syntax

public abstract class ChartAnnotation : Object

Constructors

ChartAnnotation()

Declaration

protected ChartAnnotation()

Properties

CoordinateUnit

Gets or sets the ChartCoordinateUnit enum that represents whether annotation is draw on pixel co-ordinates or axis co-ordinates.

Declaration

public ChartCoordinateUnit CoordinateUnit { get; set; }

Property Value

Type	Description
ChartCoordinateUnit	The co-ordinate point for Annotation.

Visible

Gets or sets a value indicating whether the annotation is visible in the chart.

Declaration

public bool Visible { get; set; }

Property Value

Type
System.Boolean

X1

Gets or sets the date time or double that represents x1 position of annotation.

Declaration

public object X1 { get; set; }

Property Value

Type	Description
System.Object	The x1.

XAxisName

Gets or sets the string value that represents name of the x axis.

Declaration

public string XAxisName { get; set; }

Property Value

Type	Description
System.String	The name of the X Axis.

Y1

Gets or sets the double that represents y1 position of annotation.

Declaration

public double Y1 { get; set; }

Property Value

Type	Description
System.Double	The y1.

YAxisName

Gets or sets the string value that represents name of the y axis.

Declaration

public string YAxisName { get; set; }

Property Value

Type	Description
System.String	The name of the Y Axis.

Methods

Draw(CGContext)

Method used to draw annotation in chart area.

Declaration

protected virtual void Draw(CGContext context)

Parameters

Type	Name	Description
CoreGraphics.CGContext	context	The context.

GetView()

Gets the view for annotation.

Declaration

protected virtual ChartAnnotationView GetView()

Returns

Type	Description
ChartAnnotationView	The view.

Remarks

This is not applicable for ViewAnnotation Class

MouseDown(CGPoint, NSEvent)

Informs the receiver when the left mouse button is clicked in annotation view.

Declaration

protected virtual void MouseDown(CGPoint locationInChart, NSEvent theEvent)

Parameters

Type	Name	Description
CoreGraphics.CGPoint	locationInChart	Representing mouse location in SFChart view.
AppKit.NSEvent	theEvent	An object representing the event to which the mouse down belong.

MouseEntered(CGPoint, NSEvent)

Informs the receiver when the mouse enters into annotation view.

Declaration

protected virtual void MouseEntered(CGPoint locationInChart, NSEvent theEvent)

Parameters

Type	Name	Description
CoreGraphics.CGPoint	locationInChart	Representing mouse location in SFChart view.
AppKit.NSEvent	theEvent	An object representing the event to which the mouse entered belong.

MouseExited(CGPoint, NSEvent)

Informs the receiver when the mouse exits from annotation view.

Declaration

protected virtual void MouseExited(CGPoint locationInChart, NSEvent theEvent)

Parameters

Type	Name	Description
CoreGraphics.CGPoint	locationInChart	Representing mouse location in SFChart view.
AppKit.NSEvent	theEvent	An object representing the event to which the mouse exit belong.

MouseMoved(CGPoint, NSEvent)

Informs the receiver when the mouse hovers over annotation view.

Declaration

protected virtual void MouseMoved(CGPoint locationInChart, NSEvent theEvent)

Parameters

Type	Name	Description
CoreGraphics.CGPoint	locationInChart	Representing mouse location in SFChart view.
AppKit.NSEvent	theEvent	An object representing the event to which the mouse move belong

MouseUp(CGPoint, NSEvent)

Informs the receiver when the left mouse button is released in annotation view.

Declaration

protected virtual void MouseUp(CGPoint locationInChart, NSEvent theEvent)

Parameters

Type	Name	Description
CoreGraphics.CGPoint	locationInChart	Representing mouse location in SFChart view.
AppKit.NSEvent	theEvent	An object representing the event to which the mouse up belong.