在Win Form中怎么画三维坐标系

#region 生成折线图        public static string DrawImage(float[] oFloat, bool isText,string path) {            #region 数值            int width = 660;        //图片宽度            int height = 220;       //图片高度            int iX = 20;            //左,下方向留白            int iH = height - 20;   //显示区域高度            int iW = width - 20;    //显示区域宽度            float fHeight = 200;         //纵轴总长度            float fVirtualHeight = fHeight;    //虚拟总长度                                                //算出最大的正整数,如输入300,则最大数为400            float fTempMaxNum = MaxFloat(oFloat);            while (fVirtualHeight < fTempMaxNum) {                fVirtualHeight += 100;            }                        float fCount = 10;                       //纵轴分成10份,固定            float fPx = fHeight / fCount;            //每份多少像素,固定            float fRmb = fVirtualHeight / fCount;    //每份表示多少钱,根据参数中最大数决定            float fPPx = fPx / fRmb;                 //每钱多少像素,            #endregion            #region 构造图用            //构造BITMAP            Bitmap oBmap = new Bitmap(width, height);            //新建一个画板            Graphics g = Graphics.FromImage(oBmap);                        //设置高质量插值法            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;                        //设置高质量,低速度呈现平滑程度            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;            //清空画布并以透明背景色填充            g.Clear(Color.White);            //新建钢笔,灰色,1px            Pen oPen = new Pen(Color.Gray);            Pen oSpen = new Pen(Color.Silver);            Pen oRpen = new Pen(Color.Red);            //定义黑色过渡型笔刷            LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(0, 0, oBmap.Width, oBmap.Height), Color.Black, Color.Black, 1.2F, true);            LinearGradientBrush brush_red = new LinearGradientBrush(new Rectangle(0, 0, oBmap.Width, oBmap.Height), Color.Red, Color.Red, 1.2F, true);            #endregion            //计算宽度,高度份数            float wLens = iW / oFloat.Length;            #region 画横纵坐标            //线帽            oPen.EndCap = LineCap.ArrowAnchor;            //画横纵坐标            g.DrawLine(oPen, iX, iH, iX, iX - 10);            g.DrawString("y", new Font("Arial", 8), brush, 25, 1);            g.DrawLine(oPen, iX, iH, iW + 10, iH);            g.DrawString("x", new Font("Arial", 8), brush, iW + 10, iH - 1);            //输出标题            //g.DrawString(string.Format("CreateDate {0}", DateTime.Now.ToString()), new Font("Arial", 8), brush, iW / 2, 1);            #endregion            #region 画横坐标            //画横坐标            for (int i = 0; i < oFloat.Length; i++) {                //输出小竖线                if (i == DateTime.Now.Day) {                    g.DrawString(string.Format("{0}", i), new Font("Arial", 7), brush_red, (float)wLens * i + iX - 4.5f, iH);                } else {                    g.DrawString(string.Format("{0}", i), new Font("Arial", 7), brush, (float)wLens * i + iX - 4.5f, iH);                }                g.DrawLine(oSpen, wLens * (i + 1) + iX, iH, wLens * (i + 1) + iX, iX);//画长线            }            #endregion            #region 画纵坐标            //画纵坐标            for (int i = 0; i < fCount; i++) {                if (i != 0) {                    g.DrawString(string.Format("{0}", fVirtualHeight - fRmb * i), new Font("Arial", 7), brush, (float)iX - 20.5f, i * fPx - 5);                }                g.DrawLine(oSpen, iX, i * fPx + iX, iW, i * fPx + iX);//长线            }            #endregion            #region 生成点列            //生成点列            PointF[] oPoint = new PointF[oFloat.Length];            for (int i = 0; i < oFloat.Length; i++) {                //记录坐标                oPoint[i] = new PointF(i * wLens + iX, iH - oFloat[i] * fPPx);                //输出标识                if (isText && oFloat[i] > 0) {                    g.DrawString(string.Format("{0}", oFloat[i]), new Font("Arial", 8), brush, oPoint[i]);                }            }            #endregion            g.DrawLines(oRpen, oPoint);            //g.DrawCurve(oRpen, oPoint);            //生成图片            oBmap.Save(path, ImageFormat.Gif);            oBmap.Dispose();            g.Dispose();            return string.Empty;        }        #endregion