internal constructor new Cesium.Polyline()

Create this by calling PolylineCollection#add. Do not call the constructor directly.
A renderable polyline.


Gets or sets the condition specifying at what distance from the camera that this polyline will be displayed.
默认值: undefined
Gets or sets the user-defined value returned when the polyline is picked.
Gets or sets whether a line segment will be added between the first and last polyline positions.
Gets or sets the surface appearance of the polyline. This can be one of several built-in Material objects or a custom material, scripted with Fabric.
Gets or sets the positions of the polyline.
polyline.positions = Cesium.Cartesian3.fromDegreesArray([
    0.0, 0.0,
    10.0, 0.0,
    0.0, 20.0
Determines if this polyline will be shown. Use this to hide or show a polyline, instead of removing it and re-adding it to the collection.
Gets or sets the width of the polyline.