Defines the interface for data sources, which turn arbitrary data into a
EntityCollection for generic consumption. This object is an interface
for documentation purposes and is not intended to be instantiated directly.
成员(属性)
changedEvent : Event
Gets an event that will be raised when the underlying data changes.
Gets the preferred clock settings for this data source.
clustering : EntityCluster
Gets or sets the clustering options for this data source. This object can be shared between multiple data sources.
Gets the collection of
Entity instances.
errorEvent : Event.<function(this, RequestErrorEvent)>
Gets an event that will be raised if an error is encountered during processing.
Gets a value indicating if the data source is currently loading data.
loadingEvent : Event.<function(this, boolean)>
Gets an event that will be raised when the value of isLoading changes.
Gets a human-readable name for this instance.
Gets whether or not this data source should be displayed.
方法
Updates the data source to the provided time. This function is optional and
is not required to be implemented. It is provided for data sources which
retrieve data based on the current animation time or scene state.
If implemented, update will be called by
DataSourceDisplay once a frame.
| 参数名称 | 类型 | 描述信息 |
|---|---|---|
time |
JulianDate | The simulation time. |
返回值:
True if this data source is ready to be displayed at the provided time, false otherwise.