using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Windows.Forms.DataVisualization.Charting;using System.Threading;//动态画图方式四 曲线压缩模式namespace Krypton440Test{    public partial class Form2 : Form    {        static DateTime startTime = DateTime.Now.AddSeconds(-1);        DateTime endTime = startTime.AddSeconds(6);        DateTime kd = DateTime.Parse("00:00:01");        Random rd = new Random();       //随机函数，产生Y轴数据        DataTable dt = new DataTable(); //创建数据表，存储数据        int flag = 0;   //设置Timer控件是否生效        int i = 0;      //显示数据表中的数据行数        private void timer1_Tick(object sender, EventArgs e)        {            DataRow dr = dt.NewRow();            dr["XTime"] = DateTime.Now.ToString("HH:mm:ss");            dr["YTemp"] = rd.Next(-360, 360);            dt.Rows.Add(dr);            #region 折线图            mychart.DataSource = dt;//绑定数据            mychart.Series["Series1"].ChartType = SeriesChartType.Spline;//设置图表类型            mychart.Series["Series1"].IsValueShownAsLabel = false;//显示数据点的值            mychart.Series["Series1"].BorderColor = Color.Green;            mychart.Series["Series1"].LegendText ="动态温度点";            mychart.Series["Series1"].MarkerStyle = MarkerStyle.Circle; //线条上的数据点标志类型            i = dt.Rows.Count - 1;            mychart.Series[0].Points.AddXY(Convert.ToDateTime(dt.Rows[i]["XTime"].ToString()).ToOADate(), Convert.ToDouble(dt.Rows[i]["YTemp"].ToString()));            //X轴设置            mychart.ChartAreas["ChartArea1"].AxisX.Title = "时间";//X轴标题            mychart.ChartAreas["ChartArea1"].AxisX.TitleAlignment = StringAlignment.Near;//设置X轴标题的名称所在位置位近            mychart.ChartAreas["ChartArea1"].AxisX.MajorTickMark.Enabled = true; //坐标轴上的刻度线            mychart.ChartAreas["ChartArea1"].AxisX.MajorGrid.Enabled = true;//不显示竖着的分割线            mychart.ChartAreas["ChartArea1"].AxisX.MajorGrid.LineDashStyle = ChartDashStyle.Dash;//主网格为虚线            mychart.ChartAreas["ChartArea1"].AxisX.LineColor = Color.Blue; //X轴颜色            this.mychart.ChartAreas["ChartArea1"].AxisX.IsMarksNextToAxis = true;            this.mychart.ChartAreas["ChartArea1"].AxisX.LabelStyle.IsEndLabelVisible = true;//最后一个标签点显示            //设置X轴字体类型、大小、颜色            this.mychart.ChartAreas["ChartArea1"].AxisX.LabelStyle.Font = new System.Drawing.Font("微软雅黑", 12f, System.Drawing.FontStyle.Bold);            this.mychart.ChartAreas["ChartArea1"].AxisX.LabelAutoFitMaxFontSize = 12;            this.mychart.ChartAreas["ChartArea1"].AxisX.LabelStyle.ForeColor = Color.Blue;            /************************************************************************/            /* 本文重点讲解时间格式的设置             * 但第一个点并不能保证在原点第一个时间坐标位置，与时间间隔跨度有关系             * 需要设置最小时间,最大小时，时间间隔类型，时间间隔值等四个参数，以保证当前网络跨度内容显示6个主网络线*/            /************************************************************************/            mychart.Series["Series1"].XValueType = ChartValueType.DateTime;     //X轴标签为时间类型            mychart.ChartAreas["ChartArea1"].AxisX.LabelStyle.Format = "HH:mm:ss";  //X轴上显示时、分、秒            if (DateTime.Now.ToOADate() > endTime.ToOADate())            {                endTime = endTime.AddSeconds(6);//延长X时间轴                //设置时间单位的最小、最大值                this.mychart.ChartAreas["ChartArea1"].AxisX.Minimum = startTime.ToOADate();                this.mychart.ChartAreas["ChartArea1"].AxisX.Maximum = endTime.ToOADate();                //跨度为秒，间隔是通过最大时间与最小时间差相减除6所得，所以有6个间隔线                this.mychart.ChartAreas["ChartArea1"].AxisX.IntervalType = DateTimeIntervalType.Seconds;                TimeSpan jianGe = endTime - startTime;                this.mychart.ChartAreas["ChartArea1"].AxisX.Interval = (jianGe.TotalSeconds) / 6;            }            //Y轴设置            mychart.ChartAreas["ChartArea1"].AxisY.Title = "气温";//Y轴标题            mychart.ChartAreas["ChartArea1"].AxisY.TitleAlignment = StringAlignment.Far;//设置Y轴标题的名称所在位置位远            mychart.ChartAreas["ChartArea1"].AxisY.Interval = 200;            mychart.ChartAreas["ChartArea1"].AxisY.Maximum = 400;            mychart.ChartAreas["ChartArea1"].AxisY.Minimum = -400;            mychart.ChartAreas["ChartArea1"].AxisY.MajorTickMark.Enabled = false;//坐标轴上的刻度线，为false时少了小横杆线            mychart.ChartAreas["ChartArea1"].AxisY.MajorGrid.LineDashStyle = ChartDashStyle.Dash;            mychart.ChartAreas["ChartArea1"].AxisY.LineColor = Color.Blue;            #endregion        }        public Form2()        {            InitializeComponent();        }        private void Form2_Load(object sender, EventArgs e)        {            //清空原来数据缓存            mychart.Series["Series1"].Points.Clear();            //设置Chart大小            mychart.Width = Width - 100;            mychart.Height = Height - 100;            mychart.BackColor = Color.Azure;            dt.Columns.Add("XTime", System.Type.GetType("System.String"));            dt.Columns.Add("YTemp", System.Type.GetType("System.String"));        }        private void button1_Click(object sender, EventArgs e)        {            if (flag % 2 == 0)            {                timer1.Enabled = false;            }            else            {                timer1.Enabled = true;            }            flag++;        }    }}