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

A layer for OGC Web Map Services.

Inheritance: DynamicMapServiceLayer, ILegendSupport, ISublayerVisibilitySupport

显示文件 Open project: Esri/arcgis-toolkit-sl-wpf Class Usage Examples

Public Properties

Property	Type	Description
ImageFormatProperty	System.Windows.DependencyProperty

Private Properties

Property	Type	Description
BuildLayersAttribution	void
CheckForError	bool
CreateAttributionTemplate	void
CreateLayerInfo	LayerInfo
CreateLayerInfos	IList
CreateLegendInfo	LayerLegendInfo
CreateLegendInfos	IEnumerable
CreateUrl	string
CrsFromSR	string
Descendants	IEnumerable
GetEnvelope	Envelope
GetSpatialReference	SpatialReference
GetSpatialReference	SpatialReference
GetSpatialReference	SpatialReference
GetValidVersionNumber	string
GetVisibleLayers	IEnumerable
LowerThan13Version	bool
OnVisibilityChanged	void
ParseCapabilities	void
ScaleHintToScale	double
SetAttribution	void
SetVisibleLayers	void
SetVisibleLayers	void
UseLatLon	bool
UseLatLon	bool
client_DownloadStringCompleted	void

Public Methods

Method	Description
GetLayerVisibility ( int layerID ) : bool	Gets the sub-layer visibility.
GetUrl ( DynamicLayer properties, DynamicMapServiceLayer onComplete ) : void	Gets the URL. Override from DynamicMapServiceLayer The Map has a private method loadLayerInView which calls Layer.Draw. The DynamicMapServiceLayer abstract class overrides the Draw method and calls DynamicMapServiceLayer.GetUrl which must be implemented in a subclass. The last parameter is the OnUrlComplete delegate, which is used to pass the appropriate values (url, width, height, envelope) to the private DynamicMapServiceLayer.getUrlComplete method.
Initialize ( ) : void	Initializes this a WMS layer. Calls GetCapabilities if SkipGetCapabilities is false.
QueryLegendInfos ( Action callback, Action errorCallback ) : void	Queries for the legend infos of a layer. The returned result is encapsulated in a LayerLegendInfo object. This object represents the legend of the map service layer and contains a collection of LayerLegendInfos (one by sublayer)
SetFullExtent ( Envelope fullExtent ) : void	Sets the full extent. This method is useful only if SkipGetCapabilities is true otherwise the full extent is set by the metadata.
SetLayerVisibility ( int layerID, bool visible ) : void	Sets the sublayer visibility.
WmsLayer ( ) : System	Initializes a new instance of the WmsLayer class.

Private Methods

Method	Description
BuildLayersAttribution ( LayerInfo layerInfo ) : void
CheckForError ( DownloadStringCompletedEventArgs e ) : bool
CreateAttributionTemplate ( WmsLayer layer ) : void
CreateLayerInfo ( System.Xml.Linq.XElement layer, string ns, string inheritedAttribution = "" ) : LayerInfo	Creates the layer info from the layer XElement.
CreateLayerInfos ( System.Xml.Linq.XElement layers, string ns, string inheritedAttribution = "" ) : IList	Creates the list of layer infos from the layers XElement.
CreateLegendInfo ( WmsLayer layerInfo ) : LayerLegendInfo	Creates the legend info from a layer info.
CreateLegendInfos ( IEnumerable layerInfos ) : IEnumerable	Creates the list of legend infos from the layer infos.
CreateUrl ( string url, string querystring ) : string
CrsFromSR ( int wkid ) : string
Descendants ( IEnumerable layerInfos ) : IEnumerable
GetEnvelope ( System.Xml.Linq.XElement element, bool lowerThan13 ) : Envelope
GetSpatialReference ( System.Xml.Linq.XAttribute att ) : SpatialReference
GetSpatialReference ( System.Xml.Linq.XElement element ) : SpatialReference
GetSpatialReference ( string crs ) : SpatialReference
GetValidVersionNumber ( ) : string
GetVisibleLayers ( IEnumerable layerInfos ) : IEnumerable
LowerThan13Version ( ) : bool
OnVisibilityChanged ( ) : void
ParseCapabilities ( System.Xml.Linq.XDocument xDoc ) : void
ScaleHintToScale ( double scaleHint ) : double
SetAttribution ( ) : void
SetVisibleLayers ( ) : void	Init the visibility of the layers from the visibleLayers array When a layer is in the array visibleLayers, it is visible (whatever the visibility of its parent) and all its descendants are visible so in the LayerTree we have to set the visibility for all ascendants and all descendants.
SetVisibleLayers ( WmsLayer layerInfo ) : void
UseLatLon ( System.Xml.Linq.XElement crsElement ) : bool
UseLatLon ( int extentWKID ) : bool
client_DownloadStringCompleted ( object sender, DownloadStringCompletedEventArgs e ) : void

Method Details

GetLayerVisibility() public method

Gets the sub-layer visibility.

public GetLayerVisibility ( int layerID ) : bool
layerID	int	The sub-layer ID.
return	bool

GetUrl() public method

Gets the URL. Override from DynamicMapServiceLayer

The Map has a private method loadLayerInView which calls Layer.Draw. The DynamicMapServiceLayer abstract class overrides the Draw method and calls DynamicMapServiceLayer.GetUrl which must be implemented in a subclass. The last parameter is the OnUrlComplete delegate, which is used to pass the appropriate values (url, width, height, envelope) to the private DynamicMapServiceLayer.getUrlComplete method.

public GetUrl ( DynamicLayer properties, DynamicMapServiceLayer onComplete ) : void
properties	DynamicLayer	The image export properties.
onComplete	DynamicMapServiceLayer	OnUrlComplete delegate.
return	void

Initialize() public method

Initializes this a WMS layer. Calls GetCapabilities if SkipGetCapabilities is false.

public Initialize ( ) : void
return	void

QueryLegendInfos() public method

Queries for the legend infos of a layer.

The returned result is encapsulated in a LayerLegendInfo object. This object represents the legend of the map service layer and contains a collection of LayerLegendInfos (one by sublayer)

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

SetFullExtent() public method

Sets the full extent. This method is useful only if SkipGetCapabilities is true otherwise the full extent is set by the metadata.

public SetFullExtent ( Envelope fullExtent ) : void
fullExtent	Envelope	The full extent.
return	void

SetLayerVisibility() public method

Sets the sublayer visibility.

public SetLayerVisibility ( int layerID, bool visible ) : void
layerID	int	The sublayer ID.
visible	bool	The sublayer visibility.
return	void

WmsLayer() public method

Initializes a new instance of the WmsLayer class.

public WmsLayer ( ) : System
return	System

Property Details

ImageFormatProperty public_oe static_oe property

Identifies the ImageFormat dependency property.

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