List contents of KML file

List the contents of a KML file.

Use case

KML files can contain a hierarchy of features, including network links to other KML content. A user may wish to traverse through the contents of KML nodes to know what data is contained within each node and, recursively, their children.

How to use the sample

The contents of the KML file are shown in a tree. Tap on a disclosure to reveal a node’s children. Tap on a node to open it in a scene zoomed to that node. Not all nodes can be zoomed to (e.g., screen overlays).

How it works

1. Add the KML file to the scene as a layer.
2. Explore the root nodes of the KMLDataset recursively explored to create a view model.
   • Each node is enabled for display at this step. KML files may include nodes that are turned off by default.
3. When a node is selected, use the node’s extent to create a Viewpoint and pass it to the SceneView.

Relevant API

• KMLContainer
• KMLDataset
• KMLDocument
• KMLFolder
• KMLGroundOverlay
• KMLLayer
• KMLNetworkLink
• KMLNode
• KMLPhotoOverlay
• KMLPlacemark
• KMLScreenOverlay

Offline data

This sample uses the Esri KML Sample Data KML file. It is downloaded from ArcGIS Online automatically.

Tags

Keyhole, KML, KMZ, layers, OGC