OverlayAddedEvent:
| { layername: string; success: true }
| { layername: string; success: false; error?: unknown }
類型宣告
- { layername: string; success: true }
layername: string
success: true
- { layername: string; success: false; error?: unknown }
layername: string
success: false
可選error?: unknown
疊加圖層新增事件。