Silverlight arcgis--之Graphic

  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>

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在code-behind中
Graphic g= new Graphic()
2、设置Graphic的Geometry和Symbol属性：
在xaml中

1. <esri:Graphic>
   
2. <esri:Graphic.Symbol>
   
3. <esriSymbols:SimpleMarkerSymbol Color="Blue" Size="12" Style="Square" />
   
4. </esri:Graphic.Symbol>
   
5. <esriGeometry:MapPoint X="108" Y="30" />
   
6. </esri:Graphic>

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在code-behind中

1. Graphic g = new Graphic()
   
2. {
   
3. Geometry = new MapPoint(108, 30),
   
4. Symbol = new SimpleMarkerSymbol()
   
5. {
   
6. Color = new SolidColorBrush(Colors.Blue),
   
7. Size = 12,
   
8. Style = SimpleMarkerSymbol.SimpleMarkerStyle.Square
   
9. }
   
10. };

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3、把定义好的Graphic添加到GraphicsLayer里：
在xaml中

1. <esri:GraphicsLayer ID="GLayer">
   
2. <esri:GraphicsLayer.Graphics>
   
3. <esri:Graphic>
   
4. <esri:Graphic.Symbol>
   
5. <esriSymbols:SimpleMarkerSymbol Color="Blue" Size="12" Style="Square" />
   
6. </esri:Graphic.Symbol>
   
7. <esriGeometry:MapPoint X="108" Y="30" />
   
8. </esri:Graphic>
   
9. </esri:GraphicsLayer.Graphics>
   
10. </esri:GraphicsLayer>

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在code-behind中

1. Graphic g = new Graphic()
   
2. {
   
3. Geometry = new MapPoint(108, 30),
   
4. Symbol = new SimpleMarkerSymbol()
   
5. {
   
6. Color = new SolidColorBrush(Colors.Blue),
   
7. Size = 12,
   
8. Style = SimpleMarkerSymbol.SimpleMarkerStyle.Square
   
9. }
   
10. };
    
11. GraphicsLayer glayer = Map1.Layers["GLayer"] as GraphicsLayer;
    
12. glayer.Graphics.Add(g);

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