Optional options: SymbolModuleOptionOptional _appProtected _destroyedReadonly instanceStatic moduleWhether it has been destroyed.
Indicates whether the component is enabled.
通过pointIndex获取
点索引
Optional isRefData: boolean返回的是否是数据引用的对象,默认false,将克隆新的数据
移除监听.
Event name
Optional fn: FunctionFunction, If is undefined, delete all corresponding event listeners.
增加监听
Event name
Function
This
只监听一次.
Event name
Function
This
Optional data: SymbolItemData[]
符号symbol模块,用来绘制批量符号点