C#动态绘制曲线

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.IO.Ports;    //对应串口操作命名空间
using System.Threading;
using System.Collections;   //线程命名空间

namespace DynamicCurce
{
    public partial class FrmMain : Form
    {
        public SerialPort mycomm;//定义一串口对象
        MyControl my = new MyControl();
        //构造函数
        public FrmMain()
        {
            InitializeComponent();
            this.Resize  = new EventHandler(FrmMain_Resize);
        }

       void FrmMain_Resize(object sender, EventArgs e)
        {
            this.plMain.Width = this.panel1.Width;
            this.plMain.Height = this.panel1.Height - this.panel2.Height-this.plTop.Height-30;
        }

        #region 菜单操作
        //显示网一温度
        private void 温度ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            
        }
        //显示网一湿度
        private void 湿度ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            
        }
        #endregion

        //窗体加载
        private void FrmMain_Load(object sender, EventArgs e)
        {
            //this.statusStrip1.
        }
        
        //关闭窗体
        private void button1_Click_1(object sender, EventArgs e)
        {
            this.Close();
        }

        //模拟动态绘制曲线
        private void timer1_Tick(object sender, EventArgs e)
        {
            float value = 25F;
            my.ReadData("Temperature", value);
        }
        //开始绘制曲线
        private void button2_Click(object sender, EventArgs e)
        {
            this.timer1.Interval = 1000;
            this.timer1.Enabled = !this.timer1.Enabled;
            if (this.timer1.Enabled)
            {
                this.button2.Text = "暂停绘图";
            }
            else
            {
                this.button2.Text = "开始绘图";
            }
        }        
        //初始化曲线
        private void button3_Click(object sender, EventArgs e)
        {
            this.plMain.Controls.Clear();
            my.Anchor = AnchorStyles.None;
            my.Dock = DockStyle.Fill;

            #region 曲线初始化变量
            string myCurKey = "";
            string myCurTitle = "";
            Color myCurNormalColor = new Color();
            Color myCurErrorColor = new Color();
            int myXRange = 90;
            int myXSeqment = 6;
            string myXunit = "";
            int myYErrorMaxValue=70;
            string myYErrorMaxTitle = "";
            int myYErrorMinValue=30;
            string myYErrorMinTitle = "";
            int myYNormalMaxValue=60;
            string myYNormalMaxTitle = "";
            int myYNormalMinValue=40;
            string myYNormalMinTitle = "";
            int myYTerminalMaxValue=100;
            string myYTerminalMaxTitle = "";
            int myYTerminalMinValue=0;
            string myYTerminalMinTitle = "";
            string myYunit = "";
            #endregion

            #region 初始化图表区
            //图表区大小
            System.Drawing.Size myChartSize = new Size(500, 200);
            //图表区背景色
            Color myBgColor = Color.Black;  //默认为黑色
            //图表区前景色
            Color myForeColoe = Color.Green;//默认为绿色
            //曲线图表区初始化
            my.InitChart(myChartSize, myBgColor, myForeColoe);
            #endregion

            #region 初始化曲线函数
            //曲线初始化
            for (int j = 0; j < 2; j  )
            {
                if (j == 0)
                {
                    myCurKey = "Temperature";
                    myCurTitle = "温度曲线";
                    myCurNormalColor = Color.Yellow;
                    myCurErrorColor = Color.Red;
                    myXRange = 90;  //X轴显示的时间范围（单位：分钟）
                    myXSeqment = 12;
                    myXunit = "Hour";
                    myYErrorMaxValue = 50;    //异常最大值
                    myYErrorMaxTitle = "上上限";
                    myYErrorMinValue = -10;   //异常最小值
                    myYErrorMinTitle = "下下限";
                    myYNormalMaxValue = 25;   //正常最大值
                    myYNormalMaxTitle = "上限";
                    myYNormalMinValue = 0;  //正常最小值
                    myYNormalMinTitle = "下限";
                    myYTerminalMaxValue = 100;//上边界
                    myYTerminalMaxTitle = "上边界";
                    myYTerminalMinValue = -60;//下边界
                    myYTerminalMinTitle = "下边界";
                    myYunit = "温度曲线(单位℃)";
                }
                else if (j == 1)
                {
                    myCurKey = "Humidity";
                    myCurTitle = "湿度曲线";
                    myCurNormalColor = Color.Red;
                    myCurErrorColor = Color.Yellow;
                    myXRange = 1;
                    myXSeqment = 6;
                    myXunit = "Hour";
                    myYErrorMaxValue = 60;
                    myYErrorMaxTitle = "上上限";
                    myYErrorMinValue = 20;
                    myYErrorMinTitle = "下下限";
                    myYNormalMaxValue = 50;
                    myYNormalMaxTitle = "上限";
                    myYNormalMinValue = 30;
                    myYNormalMinTitle = "下限";
                    myYTerminalMaxValue = 100;
                    myYTerminalMaxTitle = "上边界";
                    myYTerminalMinValue = 0;
                    myYTerminalMinTitle = "下边界";
                    myYunit = "湿度曲线(单位:%)";
                }
                my.InitCurce(myCurKey, myCurTitle, myCurNormalColor, myCurErrorColor, myXRange, myXSeqment, myXunit, myYErrorMaxValue,myYErrorMaxTitle,myYErrorMinValue,myYErrorMinTitle, myYNormalMaxValue,myYNormalMaxTitle, myYNormalMinValue,myYNormalMinTitle, myYTerminalMaxValue,myYTerminalMaxTitle, myYTerminalMinValue,myYTerminalMinTitle,myYunit);
            }
            #endregion

            //加载曲线
            this.plMain.Controls.Add(my);

            this.button2.Enabled = true;
            this.button3.Enabled = false;
        }      
    }
}