BubbleLayer Class
Definition
A bubble layer that renders sized circles at geographic coordinates.
public class BubbleLayer
Constructors
| Name | Description |
|---|---|
| BubbleLayer | No summary available. |
BubbleLayer Constructor
public BubbleLayer()
Methods
| Name | Description |
|---|---|
| Bind (8 overloads) | Binds a Avalonia.AvaloniaProperty to an Avalonia.Data.BindingBase. Inherited from AvaloniaObject. |
| CheckAccess | Returns a value indicating whether the current thread is the UI thread. Inherited from AvaloniaObject. |
| ClearValue (4 overloads) | Clears a Avalonia.AvaloniaProperty's local value. Inherited from AvaloniaObject. |
| CoerceValue | Coerces the specified Avalonia.AvaloniaProperty. Inherited from AvaloniaObject. |
| Equals | Compares two objects using reference equality. Inherited from AvaloniaObject. |
| GetBaseValue | Inherited from AvaloniaObject. |
| GetHashCode | Gets the hash code for the object. Inherited from AvaloniaObject. |
| GetLayerBounds | Gets the geographic bounds (in 0-200, 0-100 viewport units) of the content in this layer. Used for auto-scaling the map to fit content. |
| GetPointData | Gets the data item at the specified screen point. |
| GetValue (3 overloads) | Gets a Avalonia.AvaloniaProperty value. Inherited from AvaloniaObject. |
| IsAnimating | Checks whether a Avalonia.AvaloniaProperty is animating. Inherited from AvaloniaObject. |
| IsSet | Checks whether a Avalonia.AvaloniaProperty is set on this object. Inherited from AvaloniaObject. |
| OnPointerExited | Handles pointer exited events. Override this method to handle interactions (e.g. clearing hover effects). |
| OnPointerMoved | Handles pointer moved events. Override this method to handle interactions (e.g. hover effects). |
| OnPointerPressed | Handles pointer pressed events. Override this method to handle interactions (e.g. selection). Inherited from MapLayer. |
| Render | Renders this layer to the drawing context. |
| SetCurrentValue (2 overloads) | Sets the value of a dependency property without changing its value source. Inherited from AvaloniaObject. |
| SetValue (3 overloads) | Sets a Avalonia.AvaloniaProperty value. Inherited from AvaloniaObject. |
| VerifyAccess | Checks that the current thread is the UI thread and throws if not. Inherited from AvaloniaObject. |
GetLayerBounds Method
Gets the geographic bounds (in 0-200, 0-100 viewport units) of the content in this layer. Used for auto-scaling the map to fit content.
public Nullable<Avalonia.Rect> GetLayerBounds()
Returns
Nullable<Avalonia.Rect>
GetPointData Method
Gets the data item at the specified screen point.
public object GetPointData(Avalonia.Point point, Avalonia.Rect chartArea)
Parameters
point Avalonia.Point
The screen point to test.
chartArea Avalonia.Rect
The chart area rectangle.
Returns
object
The data item if hit; otherwise, null.
OnPointerExited Method
Handles pointer exited events. Override this method to handle interactions (e.g. clearing hover effects).
public void OnPointerExited()
OnPointerMoved Method
Handles pointer moved events. Override this method to handle interactions (e.g. hover effects).
public bool OnPointerMoved(Avalonia.Point point, Avalonia.Rect chartArea)
Parameters
point Avalonia.Point
chartArea Avalonia.Rect
Returns
bool
True if handled.
Render Method
Renders this layer to the drawing context.
public void Render(Avalonia.Media.DrawingContext context, Avalonia.Rect chartArea, double animationProgress)
Parameters
context Avalonia.Media.DrawingContext
The drawing context.
chartArea Avalonia.Rect
The chart area rectangle.
animationProgress double
Animation progress from 0 to 1.
Properties
| Name | Description |
|---|---|
| Dispatcher | Returns the Avalonia.AvaloniaObject.Dispatcher that this Avalonia.AvaloniaObject is associated with. Inherited from AvaloniaObject. |
| Fill | Gets or sets the fill brush for bubbles. |
| IsVisible | Gets or sets whether this layer is visible. Inherited from MapLayer. |
| Item | Inherited from AvaloniaObject. |
| ItemsSource | Gets or sets the data source. |
| LabelPath | Gets or sets the property path for labels. |
| LatitudePath | Gets or sets the property path for latitude. |
| LongitudePath | Gets or sets the property path for longitude. |
| MaxBubbleSize | Gets or sets the maximum bubble radius. |
| MinBubbleSize | Gets or sets the minimum bubble radius. |
| Opacity | Gets or sets the opacity of this layer. Inherited from MapLayer. |
| PointBrushPath | Gets or sets the property path for bubble color. |
| ShowLabels | Gets or sets whether to show labels. |
| SizePath | Gets or sets the property path for bubble size. |
| Stroke | Gets or sets the stroke brush for bubbles. |
| TooltipTemplate | Gets or sets the data template used for tooltips. Inherited from MapLayer. |
Fill Property
Gets or sets the fill brush for bubbles.
public Avalonia.Media.IBrush Fill { get; set; }
ItemsSource Property
Gets or sets the data source.
public System.Collections.IEnumerable ItemsSource { get; set; }
LabelPath Property
Gets or sets the property path for labels.
public string LabelPath { get; set; }
LatitudePath Property
Gets or sets the property path for latitude.
public string LatitudePath { get; set; }
LongitudePath Property
Gets or sets the property path for longitude.
public string LongitudePath { get; set; }
MaxBubbleSize Property
Gets or sets the maximum bubble radius.
public double MaxBubbleSize { get; set; }
MinBubbleSize Property
Gets or sets the minimum bubble radius.
public double MinBubbleSize { get; set; }
PointBrushPath Property
Gets or sets the property path for bubble color.
public string PointBrushPath { get; set; }
ShowLabels Property
Gets or sets whether to show labels.
public bool ShowLabels { get; set; }
SizePath Property
Gets or sets the property path for bubble size.
public string SizePath { get; set; }
Stroke Property
Gets or sets the stroke brush for bubbles.
public Avalonia.Media.IBrush Stroke { get; set; }
Fields
FillProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.Fill Avalonia property.
public Avalonia.StyledProperty<Avalonia.Media.IBrush> FillProperty
ItemsSourceProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.ItemsSource Avalonia property.
public Avalonia.StyledProperty<System.Collections.IEnumerable> ItemsSourceProperty
LabelPathProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.LabelPath Avalonia property.
public Avalonia.StyledProperty<string> LabelPathProperty
LatitudePathProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.LatitudePath Avalonia property.
public Avalonia.StyledProperty<string> LatitudePathProperty
LongitudePathProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.LongitudePath Avalonia property.
public Avalonia.StyledProperty<string> LongitudePathProperty
MaxBubbleSizeProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.MaxBubbleSize Avalonia property.
public Avalonia.StyledProperty<double> MaxBubbleSizeProperty
MinBubbleSizeProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.MinBubbleSize Avalonia property.
public Avalonia.StyledProperty<double> MinBubbleSizeProperty
PointBrushPathProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.PointBrushPath Avalonia property.
public Avalonia.StyledProperty<string> PointBrushPathProperty
ShowLabelsProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.ShowLabels Avalonia property.
public Avalonia.StyledProperty<bool> ShowLabelsProperty
SizePathProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.SizePath Avalonia property.
public Avalonia.StyledProperty<string> SizePathProperty
StrokeProperty Field
Identifies the Avalonia.Controls.Charts.BubbleLayer.Stroke Avalonia property.
public Avalonia.StyledProperty<Avalonia.Media.IBrush> StrokeProperty
Events
| Name | Description |
|---|---|
| Invalidated | Event raised when the layer needs to be redrawn. Inherited from MapLayer. |
| PropertyChanged | Raised when a Avalonia.AvaloniaProperty value changes on this object. Inherited from AvaloniaObject. |