我在类里加了两个属性, 但是this.toJSON()方法不会把这两个属性转成JSON请问 怎样设置才能保存这两个属性呢?

@vtxf 求问~ 我在类里加了两个属性, 但是this.toJSON()方法不会把这两个属性转成JSON请问 怎样设置才能保存这两个属性呢?



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可以参考自定义图元库中的写法：

https://github.com/cesiumlab/CustomPrimitive-EarthSDK/blob/master/src/Tube.js

1 首先定义defaultOptions

[图片]

2 然后将其与自定义的类关联起来：
Tube.defaultOptions = defaultOptions;
[图片]

3 注意代码中就不要再用 XE.MVVM.extend(...)来定义相关变量了

4 通过以上方法定义的变量是可以存储的

Start by locating the class that calls this.toJSON() and inspect how its properties are declared, especially use of XE.MVVM.extend(...). Compare that serialization setup with src/Tube.js in the linked CustomPrimitive-EarthSDK example. Done means the two added properties appear in the serialized JSON and can be saved and restored.

Written by the indexing model from the issue text.