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  • AE 在MapConntrol上画多边形、面

            /// <summary>
            /// 在MapControl上画多边形、面
            /// </summary>
            /// <param name="activeView"></param>
            public void DrawPolygon(ESRI.ArcGIS.Carto.IActiveView activeView)
            {
                if (activeView == null)
                {
                    return;
                }
    
                ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = activeView.ScreenDisplay;
    
                // Constant
                screenDisplay.StartDrawing(screenDisplay.hDC, (System.Int16)ESRI.ArcGIS.Display.esriScreenCache.esriNoScreenCache); // Explicit Cast
                ESRI.ArcGIS.Display.IRgbColor rgbColor = new ESRI.ArcGIS.Display.RgbColorClass();
                rgbColor.Red = 255;
    
                ESRI.ArcGIS.Display.IColor color = rgbColor; // Implicit Cast
                ESRI.ArcGIS.Display.ISimpleFillSymbol simpleFillSymbol = new ESRI.ArcGIS.Display.SimpleFillSymbolClass();
                simpleFillSymbol.Color = color;
    
                ESRI.ArcGIS.Display.ISymbol symbol = simpleFillSymbol as ESRI.ArcGIS.Display.ISymbol; // Dynamic Cast
              //ESRI.ArcGIS.Display.IRubberBand rubberBand = new ESRI.ArcGIS.Display.RubberPolygonClass(); //多边形
                ESRI.ArcGIS.Display.IRubberBand rubberBand = new ESRI.ArcGIS.Display.RubberLineClass(); //折线
    
                ESRI.ArcGIS.Geometry.IGeometry geometry = rubberBand.TrackNew(screenDisplay, symbol);
                screenDisplay.SetSymbol(symbol);
              //screenDisplay.DrawPolygon(geometry);多边形
                screenDisplay.DrawPolyline(geometry);
                screenDisplay.FinishDrawing();
            }
    
            private void axMapControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e)
            {
                DrawPolygon(this.axMapControl1.ActiveView);
            }
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  • 原文地址:https://www.cnblogs.com/imihiroblog/p/2482104.html
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