ISimpleMarkerSymbol选择符号画点 engine

private void axMapControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e)
{
  //创建SimpleMarkerSymbolClass对象

            ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbolClass();

            //创建RgbColorClass对象为pSimpleMarkerSymbol设置颜色

            IRgbColor pRgbColor = new RgbColorClass();
            pRgbColor.Red = 255;
            pSimpleMarkerSymbol.Color = pRgbColor as IColor;

            //设置pSimpleMarkerSymbol对象的符号类型，选择钻石
            pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSSquare;

            //设置pSimpleMarkerSymbol对象大小，设置为５
            pSimpleMarkerSymbol.Size = 5;

            //显示外框线
            pSimpleMarkerSymbol.Outline = true;

            //为外框线设置颜色

            IRgbColor pLineRgbColor = new RgbColorClass();
            pLineRgbColor.Green = 255;
            pSimpleMarkerSymbol.OutlineColor = pLineRgbColor as IColor;

            //设置外框线的宽度

            pSimpleMarkerSymbol.OutlineSize = 1;

           //画点
            IPoint point = new PointClass();
            point.X = e.mapX;
            point.Y = e.mapY;
            IActiveView activeView = axMapControl1.ActiveView;
            IScreenDisplay screenDisplay = activeView.ScreenDisplay;
            screenDisplay.StartDrawing(screenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
            screenDisplay.SetSymbol((ISymbol)pSimpleMarkerSymbol);
            screenDisplay.DrawPoint(point);
            screenDisplay.FinishDrawing();

}

本文来自: