在.NET中使用GDI+为MapObjects构建三维直方图统计专题

  rHeight = this.m_MaxBarHeight;
         }
         //绘制矩形
         System.Drawing.PointF[] pRect = new System.Drawing.PointF[4];
         pRect[0].X = CurrentX;
         pRect[0].Y = CurrentY;
         pRect[1].X = CurrentX + iBarWidth ;
         pRect[1].Y = CurrentY;
         pRect[2].X = CurrentX + iBarWidth ;
         pRect[2].Y = CurrentY - iBarHeight;
         pRect[3].X = CurrentX;
         pRect[3].Y = CurrentY - iBarHeight; 
         //绘制矩形顶部的阴影
         System.Drawing.PointF[] pTopFill = new System.Drawing.PointF[4];
         pTopFill[0].X = CurrentX;
         pTopFill[0].Y = CurrentY - iBarHeight;
         pTopFill[1].X = CurrentX + iBarWidth ;
         pTopFill[1].Y = CurrentY - iBarHeight;
         pTopFill[2].X = CurrentX + iBarWidth * 3/2 ;
         pTopFill[2].Y = CurrentY - iBarHeight - iBarWidth * 1/2;
         pTopFill[3].X = CurrentX + iBarWidth * 1/2 ;
         pTopFill[3].Y = CurrentY - iBarHeight - iBarWidth * 1/2;             

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