optimize the originalImages display method.

OTSIncAReportApp/1-UI/Control_Graph/Controls/Control_DrawDistrbutionImageAndBSE.cs

@@ -2086,7 +2086,7 @@ namespace OTSIncAReportGraph.Controls
             {
 
                 var curfldrec = f.Current_Rect;
-                if (curfldrec.Left > -1000 && curfldrec.Right < this.Width + 1000 && curfldrec.Top > -1000 && curfldrec.Bottom < this.Height + 1000)
+                if (curfldrec.Left > -2000 && curfldrec.Right < this.Width + 2000 && curfldrec.Top > -2000 && curfldrec.Bottom < this.Height + 2000)
                 {