ArcGISScene class final

A scene is a container for layers. You use a scene together with an ArcGISSceneViewController to display layers of geographic data in 3D.

ArcGISScene contains layers of mapping data and information such as elevation data, renderers, and labels which define the scene's capabilities. You can access ArcGISScene content directly or, more commonly, visualize the scene in an ArcGISSceneViewController.

In an MVC architecture, ArcGISScene represents the model and ArcGISSceneViewController represents the 3D view. ArcGISScene specifies how the geographic data is organized, and ArcGISSceneViewController renders the data on the screen and allows users to interact with it.

A scene can contain a base surface, a basemap, and one or more operational layers:

• A base surface is the default surface on which layers are draped or from which relative layers are offset. The ground height is provided by ElevationSource objects that are combined to make the Surface.
• A basemap is a layer that helps orient the user of the scene. It is composed of a collection of base layers, such as imagery or hillshade, that are draped on the surface, and/or reference layers such as street labels that are displayed on top of operational layers. This content is relatively static.
• An operational layer provides content that is of unique interest to the app and the task at hand, such as data about earthquakes, traffic, or weather. This content can change frequently.

You can create a scene from an existing web scene using its URL or PortalItem. Alternatively, you can get a scene directly from a MobileScenePackage.scenes collection. ArcGISScene properties are hydrated when the scene is loaded.

If you create a new scene, the spatial reference of the first layer you add, which is typically the first layer in the Basemap, defines the spatial reference of the entire scene.

See Scenes 3D for more information about scenes.