在.NET中使用GDI+为MapObjects构建三维直方图统计专题

  TODO:  添加 Custom3DBarRenderer.Draw 实现
     float iBarHeight = 0;
     float iBarWidth  = 0;
     System.Drawing.Graphics g = System.Drawing.Graphics.FromHdc(new System.IntPtr(hDC));         //创建Graphics对象
     g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;        //消除图形的锯齿
     System.Drawing.SolidBrush tempBrush = null;
     System.Drawing.Pen pOutLine = new System.Drawing.Pen(new System.Drawing.SolidBrush(this.m_OutlineColor),0.2f);
     iBarWidth  = this.m_BarWidth;
     float CurrentX,CurrentY;
     CurrentX = x - this.m_BarWidth * values.Length / 2;
     CurrentY = y;
     for(int i=0;i<values.Length;i++)
     {
         //创建画刷 并计算矩形的高度
         tempBrush =  new System.Drawing.SolidBrush(System.Drawing.ColorTranslator.FromWin32(this.m_iColors[i]));
         iBarHeight = System.Convert.ToSingle((values[i] * this.m_MaxBarHeight/this.m_fTotal).ToString());
         if(iBarHeight < this.m_MinBarHeight)
         {
              iBarHeight = this.m_MinBarHeight;
         }
         if(iBarHeight > this.m_MaxBarHeight)
         {
              iBa

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