Class ClusterItemGenerator

Default cluster items generator. Group data items using distance between 2 locations in degrees.

Inheritance
System.Object
ClusterItemGenerator
Namespace: Telerik.Windows.Controls.Map
Assembly: Telerik.Windows.Controls.DataVisualization.dll

Syntax

public class ClusterItemGenerator : Object, IClusterItemGenerator

Constructors

ClusterItemGenerator()

Initializes a new instance of the ClusterItemGenerator class.

Declaration
public ClusterItemGenerator()

Properties

AutoExpandWhenSingle

Gets or sets value which indicates whether cluster should be automatically expanded when it contains 1 data item only.

Declaration
public bool AutoExpandWhenSingle { get; set; }
Property Value
System.Boolean

CloseDistance

Gets or sets array of the doubles which define close distance between 2 locations in degrees for every zoom level.

Declaration
public double[] CloseDistance { get; set; }
Property Value
System.Double[]

Remarks

If distance between 2 locations for the given zoom level is less than value in the array, then we consider these 2 locations as close ones. Close locations should be combined into 1 cluster.

DataMappings

Gets the value mappings that constitute the data mappings for a layer.

Declaration
public DataMappingCollection DataMappings { get; }
Property Value
DataMappingCollection

DeleteWhenEmpty

Gets or sets value which indicates whether cluster should be deleted if it is empty.

Declaration
public bool DeleteWhenEmpty { get; set; }
Property Value
System.Boolean

ExpandRadius

Gets or sets radius (in pixels) which will be used to calculate coordinates of the items when cluster is expanded to the polygon vertices.

Declaration
public double ExpandRadius { get; set; }
Property Value
System.Double

HideExpanded

Indicates whether expanded cluster should be hidden.

Declaration
public bool HideExpanded { get; set; }
Property Value
System.Boolean

Methods

CreateCluster(Location, Object)

Creates cluster at the specified location.

Declaration
public virtual ClusterItem CreateCluster(Location center, object item)
Parameters
Location center

Center of the cluster.
System.Object item

Data item which initialized creation of the cluster.
Returns
ClusterItem

New cluster item.
Implements

GetBindingForLocation(Object)

Gets binding for location property.

Declaration
public virtual Binding GetBindingForLocation(object dataItem)
Parameters
System.Object dataItem

Data item to which is binding source.
Returns
System.Windows.Data.Binding

Binding to location property.
Implements

GetLocationFromItem(Object)

Gets location from the data item.

Declaration
public virtual Location GetLocationFromItem(object dataItem)
Parameters
System.Object dataItem

Data item to get location from.
Returns
Location

Location of the data item.
Implements

IsItemInClusterRegion(ClusterItem, Object, Int32)

Detects whether given original data item belongs to the region of the specified cluster.

Declaration
public virtual bool IsItemInClusterRegion(ClusterItem cluster, object dataItem, int zoomLevel)
Parameters
ClusterItem cluster

Cluster.
System.Object dataItem

Data item.
System.Int32 zoomLevel

Zoom level.
Returns
System.Boolean

true - if data item belongs to the region of the specified cluster.
Implements

Extension Methods