C# Class ESRI.ArcGIS.Client.Toolkit.DataSources.HeatMapLayer

Heat Map layer

Inheritance: DynamicLayer, ILegendSupport, ISupportsDynamicImageByteRequests

Public Properties

Property	Type	Description
GradientProperty	System.Windows.DependencyProperty
IntensityProperty	System.Windows.DependencyProperty

Method	Description
HeatMapLayer ( ) : System	Initializes a new instance of the HeatMapLayer class.
QueryLegendInfos ( Action callback, Action errorCallback ) : void	Queries for the legend infos of a layer. The returned result is encapsulated in a LayerLegendInfo object containing one legend item showing the heat map gradient.

Method	Description
Cancel ( ) : void	Stops loading of any pending images
GetSource ( DynamicLayer properties, DynamicLayer onComplete ) : void	Gets the source image to display in the dynamic layer. Override this to generate or modify images.

Method	Description
AddPoint ( ushort distanceMatrix, int size, int x, int y, int intensityMap, int width ) : void	Adds a heat map point to the intensity matrix.
CreateDistanceMatrix ( int size ) : ushort[]	Creates the distance matrix.
ISupportsDynamicImageByteRequests ( DynamicLayer properties, OnImageDataReceived onImageDataReceived ) : void
InterpolateColor ( float value, List stops ) : Color	Lienarly interpolates a color from a list of colors.
OnGradientPropertyChanged ( DependencyObject d, System.Windows.DependencyPropertyChangedEventArgs e ) : void	GradientProperty property changed handler.
OnIntensityPropertyChanged ( DependencyObject d, System.Windows.DependencyPropertyChangedEventArgs e ) : void	IntervalProperty property changed handler.
OnLegendChanged ( ) : void
heatMapPoints_CollectionChanged ( object sender, System e ) : void	Handles the CollectionChanged event of the heatMapPoints control.
renderThread_DoWork ( object sender, DoWorkEventArgs e ) : void	Handles the DoWork event of the renderThread control. This is where we render the heatmap outside the UI thread.
renderThread_ProgressChanged ( object sender, ProgressChangedEventArgs e ) : void	Handles the ProgressChanged event of the renderThread control and fires the layer progress event.
renderThread_RunWorkerCompleted ( object sender, RunWorkerCompletedEventArgs e ) : void	Handles the RunWorkerCompleted event of the renderThread control.

Stops loading of any pending images

protected Cancel ( ) : void
return	void

Gets the source image to display in the dynamic layer. Override this to generate or modify images.

protected GetSource ( DynamicLayer properties, DynamicLayer onComplete ) : void
properties	DynamicLayer	The image export properties.
onComplete	DynamicLayer	The method to call when the image is ready.
return	void

Initializes a new instance of the HeatMapLayer class.

public HeatMapLayer ( ) : System
return	System

Queries for the legend infos of a layer.

The returned result is encapsulated in a LayerLegendInfo object containing one legend item showing the heat map gradient.

public QueryLegendInfos ( Action callback, Action errorCallback ) : void
callback	Action	The method to call on completion.
errorCallback	Action	The method to call in the event of an error.
return	void

Identifies the Gradient dependency property.

public static DependencyProperty,System.Windows GradientProperty
return	System.Windows.DependencyProperty

Identifies the Intensity dependency property.

public static DependencyProperty,System.Windows IntensityProperty
return	System.Windows.DependencyProperty