ArcEngine 画图

方法一：

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1. private void DrawMapShape(IGeometry geometry)  
2. {  
3.     ISimpleFillSymbol simpleFillSymbol;  
4.     simpleFillSymbol = new SimpleFillSymbolClass();  
5.     simpleFillSymbol.Style = esriSimpleFillStyle.esriSFSNull;  
6.   
7.     IRgbColor color = new RgbColorClass();  
8.     color.Green = 137;  
9.     color.Blue = 209;  
10.     ILineSymbol line = new SimpleLineSymbolClass();  
11.     line.Color = color;  
12.     line.Width = 3;  
13.     simpleFillSymbol.Outline = line;  
14.     object symbol = simpleFillSymbol;  
15.     base.m_pMapCtrl.DrawShape(geometry, ref symbol);  
16. }  

方法二：

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1. private void AddElement(IGeometry geometry)  
2. {  
3.     IPolygonElement polygonElement;  
4.     polygonElement = new PolygonElementClass();  
5.     IElement element;  
6.     element = polygonElement as IElement;  
7.     element.Geometry = geometry;  
8.     IGraphicsContainer graphicsContainer = base.m_pMapCtrl.Map as IGraphicsContainer;  
9.     graphicsContainer.AddElement((IElement)polygonElement, 0);  
10.     base.m_pMapCtrl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);  
11. }  

方法三：

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1. private void DrawEnvelope(IEnvelope newEnvelope)  
2. {  
3.     short cacheID = base.m_pMapCtrl.ActiveView.ScreenDisplay.AddCache();  
4.   
5.     ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass();  
6.     IRgbColor rgbColor = new RgbColorClass();  
7.     rgbColor.Red = 255;  
8.     fillSymbol.Color = rgbColor;  
9.   
10.     base.m_pMapCtrl.ActiveView.ScreenDisplay.StartDrawing(base.m_pMapCtrl.ActiveView.ScreenDisplay.hDC, cacheID);  
11.     base.m_pMapCtrl.ActiveView.ScreenDisplay.SetSymbol((ISymbol)fillSymbol);  
12.     base.m_pMapCtrl.ActiveView.ScreenDisplay.DrawRectangle(newEnvelope);  
13.     base.m_pMapCtrl.ActiveView.ScreenDisplay.FinishDrawing();  
14. }