Silverlight ArcGIS开发：Graphic图形绘制详解

 要让一个Graphic显示出来，总共分3步：
1、定义Graphic：
在xaml中

1. <esri:Graphic>
   
2. </esri:Graphic>复制代码在code-behind中
   Graphic g= new Graphic()
   2、设置Graphic的Geometry和Symbol属性：
   在xaml中
5. <esri:Graphic>
   
6. <esri:Graphic.Symbol>
   
7. <esriSymbols:SimpleMarkerSymbol Color="Blue" Size="12" Style="Square" />
   
8. </esri:Graphic.Symbol>
   
9. <esriGeometry:MapPoint X="108" Y="30" />
   
10. </esri:Graphic>复制代码在code-behind中
13. Graphic g = new Graphic()
    
14. {
    
15. Geometry = new MapPoint(108, 30),
    
16. Symbol = new SimpleMarkerSymbol()
    
17. {
    
18. Color = new SolidColorBrush(Colors.Blue),
    
19. Size = 12,
    
20. Style = SimpleMarkerSymbol.SimpleMarkerStyle.Square
    
21. }
    
22. };复制代码3、把定义好的Graphic添加到GraphicsLayer里：
    在xaml中
25. <esri:GraphicsLayer ID="GLayer">
    
26. <esri:GraphicsLayer.Graphics>
    
27. <esri:Graphic>
    
28. <esri:Graphic.Symbol>
    
29. <esriSymbols:SimpleMarkerSymbol Color="Blue" Size="12" Style="Square" />
    
30. </esri:Graphic.Symbol>
    
31. <esriGeometry:MapPoint X="108" Y="30" />
    
32. </esri:Graphic>
    
33. </esri:GraphicsLayer.Graphics>
    
34. </esri:GraphicsLayer>复制代码在code-behind中
37. Graphic g = new Graphic()
    
38. {
    
39. Geometry = new MapPoint(108, 30),
    
40. Symbol = new SimpleMarkerSymbol()
    
41. {
    
42. Color = new SolidColorBrush(Colors.Blue),
    
43. Size = 12,
    
44. Style = SimpleMarkerSymbol.SimpleMarkerStyle.Square
    
45. }
    
46. };
    
47. GraphicsLayer glayer = Map1.Layers["GLayer"] as GraphicsLayer;
    
48. glayer.Graphics.Add(g);复制代码

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