Sun
查阅Mars3D API

new Cesium.Sun()
engine/Source/Scene/Sun.js 42

Draws a sun billboard.

This is only supported in 3D and Columbus view.

使用示例:
scene.sun = new Cesium.Sun();
参考:

成员(属性)

glowFactor : number
engine/Source/Scene/Sun.js 95

Gets or sets a number that controls how "bright" the Sun's lens flare appears to be. Zero shows just the Sun's disc without any flare. Use larger values for a more pronounced flare around the Sun.
默认值: 1.0

show : boolean
engine/Source/Scene/Sun.js 49

Determines if the sun will be shown.
默认值: true

方法

destroy()
engine/Source/Scene/Sun.js 353

Destroys the WebGL resources held by this object. Destroying an object allows for deterministic release of WebGL resources, instead of relying on the garbage collector to destroy this object.

Once an object is destroyed, it should not be used; calling any function other than isDestroyed will result in a DeveloperError exception. Therefore, assign the return value (undefined) to the object as done in the example.
Throws:
  • DeveloperError : This object was destroyed, i.e., destroy() was called.
使用示例:
sun = sun && sun.destroy();
参考:

isDestroyed() → boolean
engine/Source/Scene/Sun.js 333

Returns true if this object was destroyed; otherwise, false.

If this object was destroyed, it should not be used; calling any function other than isDestroyed will result in a DeveloperError exception.
返回值:
true if this object was destroyed; otherwise, false.
参考:
packages/engine
packages/widgets