const mapMenu = {
    async init() {
        var url = "https://services.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/?f=json"; // callback=loadJsonp
        var flag;
        $.ajax({
            type: "GET",
            url: url,
            data: null,
            async: false, // 让Ajax同步 
            timeout: 1500,
            success: function (data) {
                flag = true;
            },
            error: function (e) {
                flag = false;
            }
        });
        return flag;
    },
    addGaoDeMap() {
        Viewer.imageryLayers.removeAll();
        var base_ulr = window.sceneConfig.baseUrl;
        if (base_ulr.indexOf('{host}') > -1) {
            base_ulr = base_ulr.replace("{host}", iisHost)
        }
        Viewer.imageryLayers.addImageryProvider(
            new Cesium.UrlTemplateImageryProvider({
                url: base_ulr,
                maximumLevel: 5
            })
        );
    },
}
export default mapMenu;