KBE3D / KBCore / Cesium / KmlDataSource

类: KmlDataSource

A DataSource which processes Keyhole Markup Language 2.2 (KML). <p> KML support in Cesium is incomplete, but a large amount of the standard, as well as Google's <code>gx</code> extension namespace, is supported. See Github issue #873

for a detailed list of what is and isn't supported. Cesium will also write information to the console when it encounters most unsupported features. </p> <p> Non visual feature data, such as <code>atom:author</code> and <code>ExtendedData</code> is exposed via an instance of KmlFeatureData, which is added to each Entity under the <code>kml</code> property. </p>

示例

const viewer = new Cesium.Viewer('cesiumContainer');
viewer.dataSources.add(Cesium.KmlDataSource.load('../../SampleData/facilities.kmz',
     {
          camera: viewer.scene.camera,
          canvas: viewer.scene.canvas
     })
);

参数

Object describing initialization options

构造函数

构造函数

new KmlDataSource(options?: ConstructorOptions): KmlDataSource

参数

options?

ConstructorOptions

返回

KmlDataSource

属性

canvas

canvas: HTMLCanvasElement | undefined

The current size of this Canvas will be used to populate the Link parameters for client height and width.

---

camera

camera: Camera | undefined

The position and orientation of this Camera will be used to populate various camera parameters when making network requests. Camera movement will determine when to trigger NetworkLink refresh if <code>viewRefreshMode</code> is <code>onStop</code>.

---

name

name: string

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

---

clock

clock: DataSourceClock

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.

---

entities

entities: EntityCollection

Gets the collection of Entity instances.

---

isLoading

isLoading: boolean

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

---

changedEvent

changedEvent: Event

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

---

errorEvent

errorEvent: Event

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

---

loadingEvent

loadingEvent: Event

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

---

refreshEvent

refreshEvent: Event

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

---

unsupportedNodeEvent

unsupportedNodeEvent: Event

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

---

show

show: boolean

Gets whether or not this data source should be displayed.

---

clustering

clustering: EntityCluster

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

---

credit

credit: Credit

Gets the credit that will be displayed for the data source

---

kmlTours

kmlTours: KmlTour[]

Gets the KML Tours that are used to guide the camera to specified destinations on given time intervals.

方法

load()

static load(data: string | Document | Resource | Blob, options?: ConstructorOptions): Promise<KmlDataSource>

Creates a Promise to a new instance loaded with the provided KML data.

参数

data

A url, parsed KML document, or Blob containing binary KMZ data or a parsed KML document.

string | Document | Resource | Blob

options?

ConstructorOptions

An object specifying configuration options

返回

Promise<KmlDataSource>

A promise that will resolve to a new KmlDataSource instance once the KML is loaded.

---

load()

load(data: string | Document | Resource | Blob, options?: LoadOptions): Promise<KmlDataSource>

Asynchronously loads the provided KML data, replacing any existing data.

参数

data

A url, parsed KML document, or Blob containing binary KMZ data or a parsed KML document.

string | Document | Resource | Blob

options?

LoadOptions

An object specifying configuration options

返回

Promise<KmlDataSource>

A promise that will resolve to this instances once the KML is loaded.

---

destroy()

destroy(): void

Cleans up any non-entity elements created by the data source. Currently this only affects ScreenOverlay elements.

返回

void

---

update()

update(time: JulianDate): boolean

Updates any NetworkLink that require updating.

参数

time

JulianDate

The simulation time.

返回

boolean

True if this data source is ready to be displayed at the provided time, false otherwise.