Javascript Google Map可编辑多边形过滤器从set_事件中拖动事件

我有一个可编辑多边形，我想在拖动顶点（调整多边形大小）时收听事件。通常，将路径附加到“set_at”事件是好的，但当拖动整个多边形时，它会触发很多事件

google.maps.event.addListener(polygon, 'dragend', function(){search();});
google.maps.event.addListener(polygon.getPath(), 'insert_at', function(e, e1){search();});
google.maps.event.addListener(polygon.getPath(), 'remove_at', function(e, e1){search();});
//this also fires a lot of events when ploygon is dragged
google.maps.event.addListener(polygon.getPath(), 'set_at', function(){search();});

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我想要实现的是让一个类似“shape_changed”的事件在被拖动时不会触发事件。

删除

设置在
拖动启动上的监听器，并重新分配
设置在
拖动启动上的监听器
另一个选项是在拖动启动和拖动启动上设置标志，在做任何事情之前，让你的听众看一下这个标志：

google.maps.event.addListener(polygon, 'dragend', function(){search();});
google.maps.event.addListener(polygon.getPath(), 'insert_at', function(e, e1){search();});
google.maps.event.addListener(polygon.getPath(), 'remove_at', function(e, e1){search();});
//this also fires a lot of events when ploygon is dragged
google.maps.event.addListener(polygon.getPath(), 'set_at', function(){search();});

    polygon.addListener('dragstart', function (event) {
        dragging = true;
    });

    polygon.addListener('dragend', function (event) {
        //do drag end stuff here
        dragging = false;
    });

    //setup resize handler  
    var paths = polygon.getPaths();
    paths.forEach(function (path) {
        path.addListener('set_at', function (event) {
            if (!dragging) //ignore this event while dragging
                //do resize stuff here
        });
    });