Draws the axes of a reference frame defined by a matrix that transforms to world
coordinates, i.e., Earth's WGS84 coordinates. The most prominent example is
a primitives
modelMatrix.
The X axis is red; Y is green; and Z is blue.
This is for debugging only; it is not optimized for production use.
| 参数名称 | 类型 | 描述信息 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
options |
object |
可选
Object with the following properties:
|
使用示例:
primitives.add(new Cesium.DebugModelMatrixPrimitive({
modelMatrix : primitive.modelMatrix, // primitive to debug
length : 100000.0,
width : 10.0
}));成员(属性)
User-defined value returned when the primitive is picked.
-
默认值:
undefined
参考:
The length of the axes in meters.
-
默认值:
10000000.0
modelMatrix : Matrix4
The 4x4 matrix that defines the reference frame, i.e., origin plus axes, to visualize.
-
默认值:
Matrix4.IDENTITY
Determines if this primitive will be shown.
-
默认值:
true
The width of the axes in pixels.
-
默认值:
2.0
方法
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:
p = p && p.destroy();参考:
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.