添加点标注IMarkerElement

 1 private void AddPointElement(IPoint pPoint)
 2         {
 3             if (pPoint != null)
 4             {
 5                 IElement pElement = null;
 6                 IRgbColor pColor = new RgbColorClass();
 7                 pColor.Green = 255;
 8 
 9                 double pSize = Math.Round(7200 / this.axMapControl1.MapScale, 2);
10                 if (pSize < 1)
11                     pSize = 1;
12                 if (pSize > 20)
13                     pSize = 20;
14 
15                 IMarkerElement pMarkerElement = new MarkerElementClass();
16                 ISimpleMarkerSymbol pMarkerSymbol = new SimpleMarkerSymbolClass();
17                 pMarkerSymbol.Color = pColor;
18                 pMarkerSymbol.Angle = 0;
19                 pMarkerSymbol.Size = pSize;
20                 pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle;
21 
22                 pMarkerElement.Symbol = pMarkerSymbol;
23                 pElement = pMarkerElement as IElement;
24                 pElement.Geometry = pPoint;
25 
26                 this.axMapControl1.ActiveView.GraphicsContainer.AddElement(pElement, 0);
27                 this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, this.axMapControl1.ActiveView.Extent);
28                 
29                 }
30         }
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