AE+c#画、线、面.doc

else if (m_BasicOperation = Point) /方法1：SimpleMarkerSymbol具有简单特征的点 /产生一个简单符号 /ISimpleMarkerSymbol pMarkerSymbol; /pMarkerSymbol = new SimpleMarkerSymbolClass(); /Symbol的样式：为圆形 /pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle; /Symbol的颜色 /IRgbColor rgbColor = new RgbColorClass(); /rgbColor.Red = 255; /pMarkerSymbol.Color = rgbColor; /Symbol的大小 /pMarkerSymbol.Size = 4; /object oMakerSymbol = pMarkerSymbol; /axMapControl1.DrawShape(pPoint, ref oMakerSymbol); /方法2 /IFeatureLayer pFeatureLayer; /pFeatureLayer = (IFeatureLayer)axMapControl1.Map.get_Layer(0); /IFeatureClass pFeatrueClass; /pFeatrueClass = pFeatureLayer.FeatureClass; /IFeature pFeature; /pFeature = pFeatrueClass.CreateFeature(); /pFeature.Shape = (IGeometry)pPoint; /pFeature.Store(); /axMapControl1.Refresh(); /方法3 MarkerSymbol，抽象类的缺省接口 IRgbColor rgbColor = new RgbColorClass(); rgbColor.Red = 255; IMarkerSymbol pMarkerSymbol = new SimpleMarkerSymbolClass(); pMarkerSymbol.Color = rgbColor; pMarkerSymbol.Size = 4; IMarkerElement pMarkerElement = new MarkerElementClass(); pMarkerElement.Symbol = pMarkerSymbol; IElement pElement = (IElement)pMarkerElement; pElement.Geometry = pPoint; IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)axMapControl1.Map; pGraphicsContainer.AddElement(pElement, 0); IActiveView pActive = (IActiveView)pGraphicsContainer; pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null); /画线 else if (m_BasicOperation = Line) IRgbColor rgbColor = new RgbColorClass(); rgbColor.Red = 255; /方法1 /ISimpleLineSymbol pSimpleLineSymbol = new SimpleLineSymbolClass(); /pSimpleLineSymbol.Color = rgbColor; /pSimpleLineSymbol.Style = esriSimpleLineStyle.esriSLSSolid; /pSimpleLineSymbol.Width = 3; /IGeometry pGeo; /pGeo = axMapControl1.TrackLine(); /object oLineSymbol = pSimpleLineSymbol; /axMapControl1.DrawShape(pGeo, ref oLineSymbol); /方法2 ILineSymbol pLineSymbol = new SimpleLineSymbolClass(); pLineSymbol.Color = rgbColor; pLineSymbol.Width = 3; ILineElement pLineElement = new LineElementClass(); pLineElement.Symbol = pLineSymbol; IElement pElement = pLineElement as IElement; pElement.Geometry = axMapControl1.TrackLine(); IGraphicsContainer pGraphicscontainner = axMapControl1.Map as IGraphicsContainer; pGraphicscontainner.AddElement(pElement, 0); pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); /画面 else if (m_BasicOperation = Polygon) IRgbColor pColor = new RgbColorClass(); pColor.Red = 255; /产生一个线符号对象 ILineSymbol pOutline = new SimpleLineSymbolClass(); pOutline.Width = 2; pOutline.Color = pColor; /设置填充符号的属性 IFillSymbol pFillSymbol = new SimpleFillSymbolClass(); pFillSymbol.Color = pColor; pFillSymbol.Outline = pOutline; IPolygonElement pPolygonElement = new PolygonElementClass(); IElement pElement = pPolygonElement as IElement; pElement.Geometry = axMapControl1.TrackPolygon(); IFillShapeElement pFillShapeElement = pElement as IFillShapeElement; pFillShapeElement.Symbol = pFillSymbol; IGraphicsContainer pGraphicsContainer = axMapControl1.Map as