Entity

new Cesium.Entity(options)

Entity instances aggregate multiple forms of visualization into a single high-level object. They can be created manually and added to Viewer#entities or be produced by data sources, such as CzmlDataSource and GeoJsonDataSource.
Name Type Description
options Object optional Object with the following properties:
Name Type Description
id String optional A unique identifier for this object. If none is provided, a GUID is generated.
name String optional A human readable name to display to users. It does not have to be unique.
availability TimeIntervalCollection optional The availability, if any, associated with this object.
show Boolean optional A boolean value indicating if the entity and its children are displayed.
description Property optional A string Property specifying an HTML description for this entity.
position PositionProperty optional A Property specifying the entity position.
orientation Property optional A Property specifying the entity orientation.
viewFrom Property optional A suggested initial offset for viewing this object.
parent Entity optional A parent entity to associate with this entity.
billboard BillboardGraphics optional A billboard to associate with this entity.
box BoxGraphics optional A box to associate with this entity.
corridor CorridorGraphics optional A corridor to associate with this entity.
cylinder CylinderGraphics optional A cylinder to associate with this entity.
ellipse EllipseGraphics optional A ellipse to associate with this entity.
ellipsoid EllipsoidGraphics optional A ellipsoid to associate with this entity.
label LabelGraphics optional A options.label to associate with this entity.
model ModelGraphics optional A model to associate with this entity.
path PathGraphics optional A path to associate with this entity.
point PointGraphics optional A point to associate with this entity.
polygon PolygonGraphics optional A polygon to associate with this entity.
polyline PolylineGraphics optional A polyline to associate with this entity.
properties PropertyBag optional Arbitrary properties to associate with this entity.
polylineVolume PolylineVolumeGraphics optional A polylineVolume to associate with this entity.
rectangle RectangleGraphics optional A rectangle to associate with this entity.
wall WallGraphics optional A wall to associate with this entity.
See:

Members

The availability, if any, associated with this object. If availability is undefined, it is assumed that this object's other properties will return valid data for any provided time. If availability exists, the objects other properties will only provide valid data if queried within the given interval.
Gets or sets the billboard.
Gets or sets the box.
Gets or sets the conic sensor.
Gets or sets the corridor.

customPatternSensor : Sensor

Gets or sets the custom patterned sensor.
Gets or sets the cylinder.

readonlydefinitionChanged : Event

Gets the event that is raised whenever a property or sub-property is changed or modified.
Gets or sets the description.
Gets or sets the ellipse.
Gets or sets the ellipsoid.
Gets or sets the entity collection that this entity belongs to.
Gets or sets the fan.
Gets the unique ID associated with this object.

isShowing : Boolean

Gets whether this entity is being displayed, taking into account the visibility of any ancestor entities.
Gets or sets the label.
Gets or sets the model.
Gets or sets the name of the object. The name is intended for end-user consumption and does not need to be unique.
Gets or sets the orientation.
Gets or sets the parent object.
Gets or sets the path.
Gets or sets the point graphic.
Gets or sets the polygon.
Gets or sets the polyline.
Gets or sets the polyline volume.
Gets or sets the position.
Gets or sets the bag of arbitrary properties associated with this entity.

propertyNames : Array

Gets the names of all properties registered on this instance.
Gets or sets the rectangle.
Gets or sets the rectangular sensor.

show : Boolean

Gets or sets whether this entity should be displayed. When set to true, the entity is only displayed if the parent entity's show property is also true.
Gets or sets the vector.
Gets or sets the suggested initial offset for viewing this object with the camera. The offset is defined in the east-north-up reference frame.
Gets or sets the wall.

Methods

addProperty(propertyName)

Adds a property to this object. Once a property is added, it can be observed with Entity#definitionChanged and composited with CompositeEntityCollection
Name Type Description
propertyName String The name of the property to add.
Throws:

computeModelMatrix(time, result)Matrix4

Computes the model matrix for the entity's transform at specified time. Returns undefined if orientation or position are undefined.
Name Type Description
time JulianDate The time to retrieve model matrix for.
result Matrix4 optional The object onto which to store the result.
Returns:
The modified result parameter or a new Matrix4 instance if one was not provided. Result is undefined if position or orientation are undefined.

isAvailable(time)Boolean

Given a time, returns true if this object should have data during that time.
Name Type Description
time JulianDate The time to check availability for.
Returns:
true if the object should have data during the provided time, false otherwise.
Assigns each unassigned property on this object to the value of the same property on the provided source object.
Name Type Description
source Entity The object to be merged into this object.

removeProperty(propertyName)

Removed a property previously added with addProperty.
Name Type Description
propertyName String The name of the property to remove.
Throws: