KmlDataSource

new Cesium.KmlDataSource(options)
DataSources/KmlDataSource.js 2470

A DataSource which processes Keyhole Markup Language 2.2 (KML).

KML support in Cesium is incomplete, but a large amount of the standard, as well as Google's gx extension namespace, is supported. See Github issue #873 for a detailed list of what is and isn't support. Cesium will also write information to the console when it encounters most unsupported features.

Non visual feature data, such as atom:author and ExtendedData is exposed via an instance of KmlFeatureData, which is added to each Entity under the kml property.

Name Type Description
options Object An object with the following properties:
Name Type Default Description
camera Camera The camera that is used for viewRefreshModes and sending camera properties to network links.
canvas Canvas The canvas that is used for sending viewer properties to network links.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The global ellipsoid used for geographical calculations.
Example:
var viewer = new Cesium.Viewer('cesiumContainer');
viewer.dataSources.add(Cesium.KmlDataSource.load('../../SampleData/facilities.kmz',
     {
          camera: viewer.scene.camera,
          canvas: viewer.scene.canvas
     })
);
Demo:
See:

Members

changedEvent : Event
DataSources/KmlDataSource.js 2584

Gets an event that will be raised when the underlying data changes.

clock : DataSourceClock
DataSources/KmlDataSource.js 2554

Gets the clock settings defined by the loaded KML. This represents the total availability interval for all time-dynamic data. If the KML does not contain time-dynamic data, this value is undefined.

clustering : EntityCluster
DataSources/KmlDataSource.js 2649

Gets or sets the clustering options for this data source. This object can be shared between multiple data sources.

entities : EntityCollection
DataSources/KmlDataSource.js 2564

Gets the collection of Entity instances.

errorEvent : Event
DataSources/KmlDataSource.js 2594

Gets an event that will be raised if an error is encountered during processing.

isLoading : Boolean
DataSources/KmlDataSource.js 2574

Gets a value indicating if the data source is currently loading data.

loadingEvent : Event
DataSources/KmlDataSource.js 2604

Gets an event that will be raised when the data source either starts or stops loading.

name : String
DataSources/KmlDataSource.js 2536

Gets or sets a human-readable name for this instance. This will be automatically be set to the KML document name on load.

refreshEvent : Event
DataSources/KmlDataSource.js 2614

Gets an event that will be raised when the data source refreshes a network link.

show : Boolean
DataSources/KmlDataSource.js 2634

Gets whether or not this data source should be displayed.

unsupportedNodeEvent : Event
DataSources/KmlDataSource.js 2624

Gets an event that will be raised when the data source finds an unsupported node type.

Methods

staticCesium.KmlDataSource.load(data, options) → Promise.<KmlDataSource>
DataSources/KmlDataSource.js 2523

Creates a Promise to a new instance loaded with the provided KML data.
Name Type Description
data Resource | String | Document | Blob A url, parsed KML document, or Blob containing binary KMZ data or a parsed KML document.
options Object An object with the following properties:
Name Type Default Description
camera Camera The camera that is used for viewRefreshModes and sending camera properties to network links.
canvas Canvas The canvas that is used for sending viewer properties to network links.
sourceUri String optional Overrides the url to use for resolving relative links and other KML network features.
clampToGround Boolean false optional true if we want the geometry features (Polygons, LineStrings and LinearRings) clamped to the ground. If true, lines will use corridors so use Entity.corridor instead of Entity.polyline.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The global ellipsoid used for geographical calculations.
Returns:
A promise that will resolve to a new KmlDataSource instance once the KML is loaded.

load(data, options) → Promise.<KmlDataSource>
DataSources/KmlDataSource.js 2675

Asynchronously loads the provided KML data, replacing any existing data.
Name Type Description
data Resource | String | Document | Blob A url, parsed KML document, or Blob containing binary KMZ data or a parsed KML document.
options Object optional An object with the following properties:
Name Type Default Description
sourceUri Resource | String optional Overrides the url to use for resolving relative links and other KML network features.
clampToGround Boolean false optional true if we want the geometry features (Polygons, LineStrings and LinearRings) clamped to the ground. If true, lines will use corridors so use Entity.corridor instead of Entity.polyline.
ellipsoid Ellipsoid Ellipsoid.WGS84 optional The global ellipsoid used for geographical calculations.
Returns:
A promise that will resolve to this instances once the KML is loaded.

update(time) → Boolean
DataSources/KmlDataSource.js 2893

Updates any NetworkLink that require updating
Name Type Description
time JulianDate The simulation time.
Returns:
True if this data source is ready to be displayed at the provided time, false otherwise.