C#多曲线数据分析
数据如下
统计效果图如下
程序初始化
private void Form1_Load(object sender, EventArgs e) { using (SqlConnection con = new SqlConnection("server=.;pwd=123456;uid=sa;database=db_TomeOne")) { SqlDataAdapter da = new SqlDataAdapter("select Years from tb_curve", con); DataTable dt = new DataTable(); da.Fill(dt); this.comboBox1.DataSource = dt.DefaultView; this.comboBox1.DisplayMember = "Years"; this.comboBox1.ValueMember = "Years"; } }
按钮点击
private void button1_Click(object sender, EventArgs e) { this.CreateImage(Convert.ToInt32(this.comboBox1.Text)); }
private void CreateImage(int ID) { int height = 440, width = 600; //设置画布宽和高 System.Drawing.Bitmap image = new System.Drawing.Bitmap(width, height);//创建画布 Graphics g = Graphics.FromImage(image); //创建Graphics对象 try { g.Clear(Color.White); //清空图片背景色 Font font = new System.Drawing.Font("Arial", 9, FontStyle.Regular); //设置字体 Font font1 = new System.Drawing.Font("宋体", 12, FontStyle.Regular); //设置字体 Font font2 = new System.Drawing.Font("Arial", 8, FontStyle.Regular); //设置字体 System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Blue, Color.Blue, 1.2f, true); //创建LinearGradientBrush对象 g.FillRectangle(Brushes.AliceBlue, 0, 0, width, height); //绘制矩形框 Brush brush1 = new SolidBrush(Color.Blue); //创建笔刷 Brush brush2 = new SolidBrush(Color.SaddleBrown); //创建笔刷 string str = "SELECT * FROM tb_curve WHERE Years=" + ID + ""; //声明SQL语句 SqlConnection Con = new SqlConnection("server=.;pwd=123456;uid=sa;database=db_TomeOne");//建立数据库连接 Con.Open(); //打开数据库连接 SqlCommand Com = new SqlCommand(str, Con); //创建SqlCommand对象 SqlDataReader dr = Com.ExecuteReader(); //创建SqlDataReader对象 dr.Read(); //开始读取记录 if (dr.HasRows) //如果有记录 { //绘制标题 g.DrawString("" + ID + "年公司内部人员统计表", font1, brush1, new PointF(160, 30)); } dr.Close(); //关闭SqlDataReader对象 //画图片的边框线 g.DrawRectangle(new Pen(Color.Blue), 0, 0, image.Width - 1, image.Height - 1); Pen mypen = new Pen(brush, 1); //创建画笔 Pen mypen2 = new Pen(Color.Red, 2); //创建画笔 int x = 60; for (int i = 0; i < 12; i++) { g.DrawLine(mypen, x, 80, x, 340); //绘制纵向线条 x = x + 40; } Pen mypen1 = new Pen(Color.Blue, 2); //创建画笔 g.DrawLine(mypen1, x - 480, 80, x - 480, 340); //绘制线条 int y = 106; for (int i = 0; i < 9; i++) { g.DrawLine(mypen, 60, y, 540, y); //绘制横向线条 y = y + 26; } g.DrawLine(mypen1, 60, y, 540, y); //x轴 String[] n = {" 一月", " 二月", " 三月", " 四月", " 五月", " 六月", " 七月", " 八月", " 九月", " 十月", "十一月", "十二月"}; //绘制月份 x = 35; for (int i = 0; i < 12; i++) { g.DrawString(n[i].ToString(), font, Brushes.Red, x, 348); //设置文字内容及输出位置 x = x + 40; } //y轴 String[] m = {"900人", " 800人", " 700人", "600人", " 500人", " 400人", " 300人", " 200人", " 100人"}; //绘制人数 y = 100; for (int i = 0; i < 9; i++) { g.DrawString(m[i].ToString(), font, Brushes.Red, 10, y); //设置文字内容及输出位置 y = y + 26; } int[] Count1 = new int[12]; int[] Count2 = new int[12]; string[] NumChr = new string[12]; string cmdtxt2 = "SELECT * FROM tb_curve WHERE Years=" + ID + ""; //声明SQL语句 SqlCommand Com1 = new SqlCommand(cmdtxt2, Con); //创建SqlCommand对象 SqlDataAdapter da = new SqlDataAdapter(); //创建SqlDataAdapter对象 da.SelectCommand = Com1; DataSet ds = new DataSet(); //创建DataSet对象 da.Fill(ds); //Fill方法填充DataSet int j = 0; for (int i = 0; i < 12; i++) { NumChr[i] = ds.Tables[0].Rows[0][i + 1].ToString(); } for (j = 0; j < 12; j++) { Count1[j] = Convert.ToInt32(NumChr[j].Split('|')[0].ToString()) * 26 / 100; } for (int k = 0; k < 12; k++) { Count2[k] = Convert.ToInt32(NumChr[k].Split('|')[1].ToString()) * 26 / 100; } //显示折线效果 SolidBrush mybrush = new SolidBrush(Color.Red); //创建SolidBrush对象 Point[] points1 = new Point[12]; points1[0].X = 60; points1[0].Y = 340 - Count1[0]; points1[1].X = 100; points1[1].Y = 340 - Count1[1]; points1[2].X = 140; points1[2].Y = 340 - Count1[2]; points1[3].X = 180; points1[3].Y = 340 - Count1[3]; points1[4].X = 220; points1[4].Y = 340 - Count1[4]; points1[5].X = 260; points1[5].Y = 340 - Count1[5]; points1[6].X = 300; points1[6].Y = 340 - Count1[6]; points1[7].X = 340; points1[7].Y = 340 - Count1[7]; points1[8].X = 380; points1[8].Y = 340 - Count1[8]; points1[9].X = 420; points1[9].Y = 340 - Count1[9]; points1[10].X = 460; points1[10].Y = 340 - Count1[10]; points1[11].X = 500; points1[11].Y = 340 - Count1[11]; g.DrawLines(mypen2, points1); //绘制折线 Pen mypen3 = new Pen(Color.Black, 2); //创建画笔 Point[] points2 = new Point[12]; points2[0].X = 60; points2[0].Y = 340 - Count2[0]; points2[1].X = 100; points2[1].Y = 340 - Count2[1]; points2[2].X = 140; points2[2].Y = 340 - Count2[2]; points2[3].X = 180; points2[3].Y = 340 - Count2[3]; points2[4].X = 220; points2[4].Y = 340 - Count2[4]; points2[5].X = 260; points2[5].Y = 340 - Count2[5]; points2[6].X = 300; points2[6].Y = 340 - Count2[6]; points2[7].X = 340; points2[7].Y = 340 - Count2[7]; points2[8].X = 380; points2[8].Y = 340 - Count2[8]; points2[9].X = 420; points2[9].Y = 340 - Count2[9]; points2[10].X = 460; points2[10].Y = 340 - Count2[10]; points2[11].X = 500; points2[11].Y = 340 - Count2[11]; g.DrawLines(mypen3, points2); //绘制折线 //绘制标识 g.DrawRectangle(new Pen(Brushes.Red), 150, 370, 250, 50); //绘制范围框 g.FillRectangle(Brushes.Red, 250, 380, 20, 10); //绘制小矩形 g.DrawString("试用员工人数", font2, Brushes.Red, 270, 380); //绘制试用员工人数 g.FillRectangle(Brushes.Black, 250, 400, 20, 10); //绘制小矩形 g.DrawString("正式员工人数", font2, Brushes.Black, 270, 400); //绘制正式员工人数 this.panel1.BackgroundImage = image; //显示绘制的图像 } catch { } }
付费内容,请联系本人QQ:1002453261
本文来自博客园,作者:明志德道,转载请注明原文链接:https://www.cnblogs.com/for-easy-fast/p/16485570.html
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】博客园社区专享云产品让利特惠,阿里云新客6.5折上折
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步
· 在鹅厂做java开发是什么体验
· 百万级群聊的设计实践
· WPF到Web的无缝过渡:英雄联盟客户端的OpenSilver迁移实战
· 永远不要相信用户的输入:从 SQL 注入攻防看输入验证的重要性
· 浏览器原生「磁吸」效果!Anchor Positioning 锚点定位神器解析