ArcGIS API for JavaScript中Symbol符号篇—PictureMarkerSymbol

PictureMarkerSymbol是将点渲染成照片，效果如图：

核心代码如下：

 1 featureLayer.on("mouse-over",function(evt){
 2 var point = evt.graphic.geometry;
 3 var pictureSymbol;
 4                             switch (evt.graphic.attributes.TENDERTYPEID) {
 5                                 case "1":
 6                                 {
 7                                     pictureSymbol = new PictureMarkerSymbol("/Images/blue.png", 40, 40);
 8                                     break;
 9                                 }
10                                 case "2":
11                                 {
12                                     pictureSymbol = new PictureMarkerSymbol("/Images/green.png", 40, 40);
13                                     break;
14                                 }
15                                 case "3":
16                                 {
17                                     pictureSymbol = new PictureMarkerSymbol("/Images/purple.png", 40, 40);
18                                     break;
19                                 }
20                                 case "4":
21                                 {
22                                     pictureSymbol = new PictureMarkerSymbol("/Images/red.png", 40, 40);
23                                     break;
24                                 }
25                                 default :
26                                 {
27                                     pictureSymbol = new PictureMarkerSymbol("/Images/yellow.png", 40, 40);
28                                     break;
29                                 }
30                             }
31 var graphic = new Graphic(point,pictureSymbol);
32 pictureGraphicLayer.add(graphic);
33 });

代码显示效果为：鼠标移过图片后，显示放大图