Question

目前有两张表格,一张是polygon上层,另一张是一份活动清单:points<。

I was curious if it would be possible to display both of these tables on the same map. My final goal is to display them on a webpage, that will allow the user to select a polygon and then have all of the points within the selected polygon show up on a dashboard and I m not sure if that is possible.

感谢

哲学

Answer 1

这应该非常容易地从一个网页上进行,基本上,你刚刚需要建立多层输电层,并将之添加到你的地图上,这样就应该做些什么(我确实注意到,如果你想要从一个网页上获得这些层,他们必须作为公众加以标记,那么你目前是私人的):

//Create the map
map = new google.maps.Map(document.getElementById( map-canvas ), 
{
    zoom: 5,
    mapTypeId: google.maps.MapTypeId.ROADMAP
}); 

//Add the first fusion table layer
var layer1 = new google.maps.FusionTablesLayer({
    query: {
    select:  Address ,
    from: **Layer1ID**
    },
    map: map
});

//Add the second fusion table layer
var layer2 = new google.maps.FusionTablesLayer({
    query: {
    select:  Address ,
    from: **Layer2ID**
    },
    map: map
});

Answer 2

Re: "allow the user to select a polygon and then have all of the points within the selected polygon show up on a dashboard and I m not sure if that is possible." The Fusion Table SQL API has an ST_INTERSECTS operator which would almost accomplish this. But it only works for Circles and Rectangles. Not for Polygons.

友情链接