Draws the outline of the camera's view frustum.
| 名称 Name | 类型 Type | 说明 Description | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
object |
具有以下属性的对象： Object with the following properties:
|
示例： Example:
primitives.add(new Cesium.DebugCameraPrimitive({
camera : camera,
color : Cesium.Color.YELLOW
}));成员 Members
选取图元时返回的用户定义值。 User-defined value returned when the primitive is picked.
-
默认值： Default Value:
undefined
另见： See:
确定是否显示该原语。 Determines if this primitive will be shown.
-
默认值： Default Value:
true
方法 Methods
销毁该对象持有的 WebGL 资源。销毁对象可以确定性地释放 WebGL 资源，而不是依赖垃圾收集器来销毁该对象。 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.
一旦对象被销毁，就不应再使用；调用除 Once an object is destroyed, it should not be used; calling any function other than
isDestroyed 将导致 will result in a DeveloperError 例外。因此，分配返回值（ exception. Therefore, assign the return value (undefined) 到对象，如示例中所做的那样。 ) to the object as done in the example.
抛出： Throws:
-
DeveloperError : This object was destroyed, i.e., destroy() was called.
示例： Example:
p = p && p.destroy();另见： See:
如果该对象被销毁则返回 true；否则为假。 Returns true if this object was destroyed; otherwise, false.
如果该对象被破坏，则不应使用它；调用除 If this object was destroyed, it should not be used; calling any function other than
isDestroyed 将导致 will result in a DeveloperError exception.
返回： Returns:
true 如果该物体被摧毁；否则， if this object was destroyed; otherwise, false.