1. Is there a javascript plug-in (it seems to be called the Eagle Eye plug-in) that can achieve the following effect?
The small window on the lower right displays a thumbnail of the map on the left, and you can drag the blue area of the small window to change the display range of the map on the left.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Can you think that the map you are talking about is just an ordinary picture? It's just that the content of the picture is a map. If so, then Baidu
jquery zoom插件should be able to meet your requirements