javascript Google Maps APIv3 绘图管理器的 onChange 事件
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onChange event for Google Maps APIv3 drawing manager
提问by user101289
I'm using the GMaps API v 3 Drawing Managerto let users draw shapes on a map.
我正在使用 GMaps API v 3绘图管理器让用户在地图上绘制形状。
I can use the completeevents to trigger actions when a shape is added to the map (eg. overlaycompleteor polygoncomplete)-- but I am also allowing the user to edit the completed shapes.
complete当形状添加到地图（例如overlaycomplete或polygoncomplete）时，我可以使用事件来触发操作——但我也允许用户编辑完成的形状。
Is there a way to trigger an action when a shape is changed? I can't see any way to fire another function when a shape is modified.
有没有办法在形状改变时触发动作？当修改形状时，我看不到任何方式来触发另一个函数。
Thanks
谢谢
回答by dmk
List of editing events can be found here:
可在此处找到编辑事件列表：
Here is an example how to use it with DrawingManager when a circle's radius has changed:
这是一个示例，当圆的半径发生变化时，如何将其与 DrawingManager 一起使用：
google.maps.event.addListener(drawingManager, 'circlecomplete', function (circle) {
google.maps.event.addListener(circle, 'radius_changed', function () {
console.log('radius changed');
});
});
You can use the same approach for polygons/rectangles.
您可以对多边形/矩形使用相同的方法。
