Polyline
查阅Mars3D API

internal constructor new Cesium.Polyline()
engine/Source/Scene/Polyline.js 37

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

成员(属性)

distanceDisplayCondition : DistanceDisplayCondition
engine/Source/Scene/Polyline.js 335

Gets or sets the condition specifying at what distance from the camera that this polyline will be displayed.
默认值: undefined

id : *
engine/Source/Scene/Polyline.js 295

Gets or sets the user-defined value returned when the polyline is picked.

loop : boolean
engine/Source/Scene/Polyline.js 250

Gets or sets whether a line segment will be added between the first and last polyline positions.

material : Material
engine/Source/Scene/Polyline.js 203

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.

positions : Array.<Cartesian3>
engine/Source/Scene/Polyline.js 152

Gets or sets the positions of the polyline.
使用示例:
polyline.positions = Cesium.Cartesian3.fromDegreesArray([
    0.0, 0.0,
    10.0, 0.0,
    0.0, 20.0
]);

show : boolean
engine/Source/Scene/Polyline.js 123

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.

width : number
engine/Source/Scene/Polyline.js 226

Gets or sets the width of the polyline.
packages/engine
packages/widgets