地理坐标和屏幕坐标互转

一、AE地理坐标和屏幕坐标互转
(1)地理坐标转屏幕坐标
     pPoint.PutCoords(x, y);//x,y地理坐标

     pActiveView.ScreenDisplay.DisplayTransformation.FromMapPoint(pPoint, out x, out y);// x,y为long类型

     另:Server ADF开发中,ESRI.ArcGIS.ADF.Web.Geometry.ToScreenPoint(Envelope,Int32,Int32);

     方法说明(C#):public Point ToScreenPoint(Envelope extent,int imageWidth,int imageHeight);

     返回值:Screen-point (pixel-point) of converted map Point.

     注意:该方法没有考虑地图旋转,所以不推荐使用,最好用ToScreenPoint(TransformationParams)代替转换;

     

(2)屏幕坐标转地理坐标
     pPoint=pActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);// x,y为屏幕坐标

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