arcgis 根据坐标定位

根据坐标点定位显示图标

function locationXY() {
var x = dojo.byId("xCoord").value;
var y = dojo.byId("yCoord").value;
if (x == "" || y == "") {
return false;
}
var point = new esri.geometry.Point(x, y, new esri.SpatialReference({ wkid: 2384 }));

DrowPoint(point);
return true;

}

DrowPoint:function(point){
PointPlanLayer =map.getLayer("PointPlanMapLayer");//图层 
PointPlanLayer.clear();
var point = new esri.geometry.Point(point);
var symbol = new esri.symbol.PictureMarkerSymbol({
"url":"/images/pads_point.png",//图片
"height":24,
"width": 24,
"type":"esriPMS",
"angle": 0
});
var graphic = new esri.Graphic(point, symbol);
PointPlanLayer.add(graphic);
},