Displays data from a WMS service. The service may be hosted in the cloud on ArcGIS Online, on a third party server, or on-premises with ArcGIS Server.
Web Map Service (WMS) is an Open Geospatial Consortium (OGC) standard for delivering map images from an online service. WMS layer displays data from a web service that provides maps in the form of server-rendered images. This API supports WMS versions 1.1.0, 1.1.1, and 1.3.0. The service may be hosted in the cloud on ArcGIS Online, on a third party server, or on-premises ArcGIS Server.
Functional characteristics A WMS service can contain multiple layers in a hierarchy. A Wms layer can be constructed directly with a URL to a service and the uniquely identifying name of the desired layer. Alternatively, a WmsService can be used to programmatically explore the available layers and allow the user to choose layers at run time.
The maps provided by a WMS service use predefined symbology defined by the server. As a result, it is not possible to apply custom renderers or to visualize feature selection. WMS layers can have multiple style options. Your app can choose from the available styles.
Some layers can be marked as opaque, which means that they cover most of the map area and are good candidates for use as a basemap.
WMS layers support identify and time. They do not support selection or query. Note that due to the nature of WMS, it is not possible to retrieve feature geometry from WMS identify results. WMS layers support custom parameters, which can be specified for the service or an individual layer.
Performance characteristics WMS servers render map images on demand, which can require more server resources than a similar tiled service. WMS requires a service connection at all times.
These parameters are appended to GetMap and GetFeatureInfo requests. If a parameter with the same name is defined in the service's custom parameters, then layer-specific values take precedence over service-wide values. WmsLayer CustomParameters property will take precedence over CustomParameters property on WmsService.
The unique identifying string for the layer, for example specified in a map or scene. The id is used by other parts of this API to refer to a specific Layer, such as in a set of FeatureFenceParameters or a FacilityLayerDefinition. If not supplied, all layers will be assigned a unique id when created.
Returns the layer content's effective visibility at the specified scale. Returns the effective layer content visibility. This effective visibility takes care of the effective visibility of the parents at the specified scale. Will return false if an error occurs.