OpenLayers +谷歌广告

Question

如何通过谷歌地图层在OpenLayers中使用谷歌广告？

在谷歌地图(v2)地图中使用广告感知的代码：

map = new GMap2(document.getElementById("Gmap"));
adsManager = new GAdsManager(
    map, 
    "ca-pub-xxxxxxxxxxxxxxxx", 
    {
        maxAdsOnMap : 4,
        style: 'adunit'
    }
);
adsManager.enable();

## The HTML:
<div id="Gmap"></div>

​

​

在openlayer中显示google地图的代码：

map = new OpenLayers.Map("olmap")
var gmap = new OpenLayers.Layer.Google("Google Streets", {numZoomLevels: 20});
map.addLayers([gmap]);

## The HTML:
<div id="olmap"></div>

有没有办法在openlayers中获取google地图对象？然后我可以使用第一个代码来添加广告。

Answer 1

我找到了！查看Openlayers源代码和firebug :)

似乎当你有这个代码的时候

map = new OpenLayers.Map("olmap")
var gmap = new OpenLayers.Layer.Google("Google Streets", {numZoomLevels: 20});
map.addLayers([osm, gmap]);

## The HTML:
<div id="olmap"></div>

您可以使用这个js来引用google地图对象

map.baseLayer.mapObject

因此，根据this的说法，它可能是这样的

## html
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?libraries=adsense&sensor=true_or_false"></script>
<div id="olmap"></div>

## js
map = new OpenLayers.Map("olmap")
var gmap = new OpenLayers.Layer.Google("Google Streets", {numZoomLevels: 20});
map.addLayers([gmap]);

var adUnitDiv = document.createElement('div');
var adUnitOptions = {
  format: google.maps.adsense.AdFormat.HALF_BANNER,
  position: google.maps.ControlPosition.TOP,
  map: map.baseLayer.mapObject,
  visible: true,
  publisherId: 'YOUR_PUBLISHER_ID'
}
adUnit = new google.maps.adsense.AdUnit(adUnitDiv, adUnitOptions);

(未测试)