com.esri.ags.layers.OpenStreetMapLayer

Package	com.esri.ags.layers
Class	public class OpenStreetMapLayer
Inheritance	OpenStreetMapLayer TiledMapServiceLayer Layer mx.core.UIComponent

Since :

ArcGIS API for Flex 2.1

Allows you to use basemaps from OpenStreetMap. Set the tileservers property to change which OpenStreetMap tiles you want to use.

Public Properties

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Show Inherited Public Properties

	Property		Defined By
		displayLevels : Array Levels to display in layer, based on LOD.level.	TiledMapServiceLayer
		fadeInFrameCount : uint The number of frames it will take for the tiles to fade in.	TiledMapServiceLayer
		fullExtent : Extent [read-only] The full extent of the layer.	TiledMapServiceLayer
		initialExtent : Extent [read-only] Initial extent of the layer.	Layer
		isInScaleRange : Boolean [read-only] Returns true if the current scale of the map is between the maximum and minimum scale of the layer [added in version 1.3].	Layer
		loaded : Boolean [read-only] When the layer is loaded, the value becomes "true" and layer properties can be accessed.	Layer
		loadFault : Fault [read-only] A reference to the fault that is dispatched when the layer throws a loadError event.	Layer
		map : Map [read-only] A reference to the Map this layer is in.	Layer
		maxScale : Number The maximum scale of the layer [added in version 1.3].	Layer
		minScale : Number The minimum scale of the layer [added in version 1.3].	Layer
		spatialReference : SpatialReference [override] [read-only] Returns a SpatialReference with a wkid value of 102100.	OpenStreetMapLayer
		tileInfo : TileInfo [read-only] Contains information about the tiling scheme.	TiledMapServiceLayer
		tileServers : Array List of URL endpoints to load from.	OpenStreetMapLayer
		units : String [override] [read-only] Returns Units.METERS	OpenStreetMapLayer

	Method	Defined By
		refresh():void Causes the layer to redraw or reload its content.	Layer

Protected Methods

Show Inherited Protected Methods

	Method		Defined By
		addMapListeners():void Adds listeners for ExtentEvent.EXTENT_CHANGE, ZoomEvent.ZOOM_START, ZoomEvent.ZOOM_UPDATE and ZoomEvent.ZOOM_END.	Layer
		extentChangeHandler(event:ExtentEvent):void When an EXTENT_CHANGE event occurs, this calls invalidateLayer();	Layer
		getTileURL(level:Number, row:Number, col:Number):URLRequest Subclasses must override this method to cause tiles to be loaded from their own endpoints.	TiledMapServiceLayer
		hideHandler(event:FlexEvent):void When the layer is hidden (visible is set to false), this calls removeMapListeners().	Layer
		invalidateLayer():void Subclasses should call this whenever they would like to have updateLayer() called on them.	Layer
		removeAllChildren():void Removes all the layers children.	Layer
		removeMapListeners():void Removes the four event listeners added by addMapListeners();	Layer
		setLoaded(value:Boolean):void Subclasses must call this when they've loaded all their properties and are ready to load their content.	Layer
		showHandler(event:FlexEvent):void When the layer is shown (visible is set to true), this calls addMapListeners() and invalidateLayer().	Layer
		toScreenX(mapX:Number):Number Converts the x-coordinate of map point to a screen point.	Layer
		toScreenY(mapY:Number):Number Converts the y-coordinate of map point to a screen point.	Layer
		updateLayer():void Subclasses must override this method.	Layer
		zoomEndHandler(event:ZoomEvent):void Finishes the zoom animation.	Layer
		zoomStartHandler(event:ZoomEvent):void Prepares the zoom animation by taking a bitmap of the layer.	Layer
		zoomUpdateHandler(event:ZoomEvent):void Redraws the bitmap of the layer.	Layer

Summary	Defined By
isInScaleRangeChange	Fires if the value of isInScaleRange changes.	Layer
load	Fires after layer properties for the layer are successfully populated.	Layer
loadError	Fires if the layer is unable to load.	Layer
updateEnd	Fires when the layer has finished updating its content.	Layer
updateStart	Fires when the layer begins to update its content.	Layer

Property Detail

spatialReference

property

spatialReference:SpatialReference [read-only] [override]

Returns a SpatialReference with a wkid value of 102100.

Implementation
public function get spatialReference():SpatialReference

tileServers

property

tileServers:Array

List of URL endpoints to load from. Default is "http://a.tile.openstreetmap.org/", "http://b.tile.openstreetmap.org/" and "http://c.tile.openstreetmap.org/".

Implementation
public function get tileServers():Array
public function set tileServers(value:Array):void

Example

Using Osmarender tile servers

     <esri:OpenStreetMapLayer>
       <esri:tileServers>
           <fx:String>http://a.tah.openstreetmap.org/Tiles/tile/</fx:String>
           <fx:String>http://b.tah.openstreetmap.org/Tiles/tile/</fx:String>
           <fx:String>http://c.tah.openstreetmap.org/Tiles/tile/</fx:String>
       </esri:tileServers>
     </esri:OpenStreetMapLayer>

units

property

units:String [read-only] [override]

Returns Units.METERS

Implementation
public function get units():String

Wed Nov 30 2011, 04:19 PM -08:00

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