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// OpenLayers 的 地图
hwo.zoomBase = 11;
hwo.zoomOld = 7;
hwo.zoomChange = function () {
	var s, v;
	var z = this.map.getView().getZoom();
	if (z >= this.zoomBase && this.zoomOld < this.zoomBase) {
		this.zoomOld = z;
		// 大图标
		for (s in this.list.subs) {
			v = this.list.subs[s];
			this.map.removeOverlay(v.mapSmallDoe.view);
			this.map.addOverlay(v.mapBigDoe.view);
		}
	} else if (this.zoomOld >= this.zoomBase && z < this.zoomBase) {
		this.zoomOld = z;
		// 小图标
		for (s in this.list.subs) {
			v = this.list.subs[s];
			this.map.removeOverlay(v.mapBigDoe.view);
			this.map.addOverlay(v.mapSmallDoe.view);
		}
	}
};
hwo.map = new hw.Ol.Map({
	layers: [
		new hw.Ol.layer.Tile({
			source: new hw.Ol.source.OSM()
		})
	],
	target: "map",
	view: new hw.Ol.View({
		projection: "EPSG:3857",
		zoom: hwo.zoomOld,
		center: hw.utOlproj([116, 38.5])
	})
});
hwo.map.on("moveend", hw.bind (hwo, hwo.zoomChange));