Do you want two have two map widgets which are synchronized? Something like that is displayed in http://apps.geomajas.org/showcase-beta/ (indicate layers, google layer in the left menu - you will see that when you drag/zoom one of the maps, the others follow).
If you want one a widget where any operations in that widget change to display of a map, that also sounds pretty easy to do by having a event listener on the one widget which sets the bounds on the map widget. If you want to use Java+GWT, this would be easy using Geomajas.
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我不完全理解你的问题。
您想要两个有两个同步的地图小部件吗？类似的内容显示在 http://apps.geomajas.org/showcase-beta/ 中（在左侧菜单中指示图层、谷歌图层 - 您会看到当您拖动/缩放其中一张地图时，其他地图也会跟随）。
如果您想要一个小部件，其中该小部件中的任何操作都会更改为地图的显示，那么通过在一个小部件上设置一个事件侦听器来设置地图小部件上的边界，这听起来也很容易做到。如果你想使用Java+GWT，使用Geomajas 会很容易。
I don't full understand your question.
Do you want two have two map widgets which are synchronized? Something like that is displayed in http://apps.geomajas.org/showcase-beta/ (indicate layers, google layer in the left menu - you will see that when you drag/zoom one of the maps, the others follow).
If you want one a widget where any operations in that widget change to display of a map, that also sounds pretty easy to do by having a event listener on the one widget which sets the bounds on the map widget. If you want to use Java+GWT, this would be easy using Geomajas.