Arcgis for Js实现graphiclayer的空间查询（续）

var drawToolbar = new esri.toolbars.Draw(map);
drawToolbar.on("draw-end",showDrawResults);
on(dom.byId("point"), "click", function(){
    restoreMap();
    drawToolbar.activate(esri.toolbars.Draw.POINT);
});
on(dom.byId("polyline"), "click", function(){
    restoreMap();
    drawToolbar.activate(esri.toolbars.Draw.POLYLINE);
});
on(dom.byId("extent"), "click", function(){
    restoreMap();
    drawToolbar.activate(esri.toolbars.Draw.EXTENT);
});
on(dom.byId("circle"), "click", function(){
    restoreMap();
    drawToolbar.activate(esri.toolbars.Draw.CIRCLE);
});
on(dom.byId("polygon"), "click", function(){
    restoreMap();
    drawToolbar.activate(esri.toolbars.Draw.POLYGON);
});
/**
 * 显示绘制结果
 */
function showDrawResults(evt){
    drawToolbar.deactivate();
    map.setMapCursor("default");
    var geometry = evt.geometry;
    if(geometry.type==="point" || geometry.type==="polyline"){
        $('#map').modalInfowindow({
            width:175,
            height:75,
            title:"请输入缓冲区距离",
            content:"<input id="'distance'" type="'text'">"
        });
        $("#distance").focus();
        $("#distance").keydown(function (e){
            // 回车键事件
            if(e.which == 13) {
                $("#close").click();
            }
        });
        on(dom.byId("close"), "click", function(){
            distance = dom.byId("distance").value;
            $("#modal").remove();
            doBuffer(geometry);
        });
    }
    else{
        queryGraphicByPolygon(geometry);
    }
};

var gsvc = new GeometryService("http://localhost:6080/arcgis/rest/services/Utilities/Geometry/GeometryServer");

/**
             * 根据多边形进行查询
             * @param geometry
             */
            function queryGraphicByPolygon(geometry){
                var graphics = chartLayer.graphics;
 
                var sfs = new SimpleFillSymbol(SimpleFillSymbol.STYLE_SOLID,
                        new SimpleLineSymbol(SimpleLineSymbol.STYLE_DASHDOT,
                                new Color([255,0,0]), 2),
                        new Color([255,255,0,0.25])
                );
                var graphic = new Graphic(geometry,sfs);
                map.graphics.add(graphic);
 
                for(var i= 0, total=graphics.length;i<total;i++)

{ 

　　　　　　　　　　if(geometry.contains(graphics[i].geometry))

　　　　　　　　　　{

　　　　　　　　　　selectedgraphics.push(graphics[i]);

　　　　　　　　　　graphics[i].symbol="createSymbol(iconPath,"#0ff");

　　　　　　　　　　chartlayer.redraw();

　　　　　　　　　　}

　　　　　　　　　}