0

我有一个功能：

    function createWFS(){
    //WMS
    wms_proj = new OpenLayers.Projection("EPSG:900913");    
    //WFS
    SS=new OpenLayers.Strategy.Save();
    FS=new OpenLayers.Strategy.Filter({filter:Ffilter});
    var myStyle = OpenLayers.Util.extend({},
        OpenLayers.Feature.Vector.style['default']);
    myStyle.strokeWidth = 1.5;
    myStyle.strokeColor = "#ff0000";
    myStyle.fillOpacity = 0.1;

    myVecLayer= new OpenLayers.Layer.Vector("Редактируемый участок");
    myVecLayer.projection=wms_proj;
    app.mapPanel.map.addLayers([myVecLayer]);
    myVecLayer.visibility=false;

    //Стор для зума
    zoom_tab = new GeoExt.data.FeatureStore({
        layer: myVecLayer,
        fields: [
            {name: 'id', type: 'int'},
            {name: 'filedata', type: 'String'}
        ],
        proxy: new GeoExt.data.ProtocolProxy({
            protocol: new OpenLayers.Protocol.HTTP({
                //url: "/geoserver/ows?service=WFS&request=GetFeature&typeName=mrsk:parcels_temp&srsName=EPSG:4326&outputFormat=GML2",
                url: "/geoserver/ows?service=WFS&request=GetFeature&typeName=cite:parcels_temp&srsName=EPSG:4326&outputFormat=GML2",
                format: new OpenLayers.Format.GML()
            })
        }),
        autoLoad: true
    });
    zoom_store=zoom_tab;
}

您会看到此函数创建 WFS 图层和 GeoExt.FeatureStore。我不知道功能会工作多久。
所以现在我调用这个函数并希望在制作下一个代码之前等待函数结果。这个怎么做？

4

1 回答 1

1

只需将您自己的回调传递给它：

function createWFS(callback) {
    //WMS
    ...
    if (callback)
        callback();
}


function Main() {
    createWFS(NextStep);
}

function NextStep() {
    //stuff here
}
于 2013-01-16T09:41:35.323 回答