实例介绍
【实例简介】SerialCommunication原版，串口数据绘制曲线
【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.IO.Ports;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace SerialCommunication
{
public partial class frmMain : Form
{
public string gb;
public frmMain()
{
InitializeComponent();
System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;//关闭跨线程检测
}
private void frmMain_Load(object sender, EventArgs e)
{
this.cmbSerials.Items.AddRange(SerialPort.GetPortNames());
this.cmbSerials.SelectedIndex = this.cmbSerials.Items.Count - 1;//Arduino一般在最后一个串口
this.baud.SelectedIndex = 9;
this.btnStartRead.Enabled = true;
this.btnStopRead.Enabled = false;
this.btnDataReader.Enabled = this.btnDataClean.Enabled = this.BntDrawLine.Enabled = false;
serialPort.DataReceived = new System.IO.Ports.SerialDataReceivedEventHandler(Port_DataReceived);//串口接收触发
}
private void Port_DataReceived(object sender, SerialDataReceivedEventArgs e)
{//串口接收代码
int bufferlen = serialPort.BytesToRead;
byte[] bytes = new byte[bufferlen];
serialPort.Read(bytes, 0, bufferlen);
gb = System.Text.Encoding.Default.GetString(bytes);
//gb = serialPort.ReadLine();
txtInfo.AppendText(gb);
while (this.btnDataClean.Enabled == false)
{
this.AutoDrawLine();
break;
}
}
//------------------------------------------------
private void btnStartRead_Click(object sender, EventArgs e)
{//打开串口
// this.InitialSerialPort();
try
{
serialPort.PortName = this.cmbSerials.SelectedItem.ToString();
serialPort.BaudRate = Convert.ToInt32(this.baud.SelectedItem);
serialPort.Open();
this.btnStartRead.Enabled = false;
this.btnStopRead.Enabled = true;
this.btnDataReader.Enabled = true;
}
catch (Exception ex)
{
MessageBox.Show("初始化串口发生错误：" ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
private void btnStopRead_Click(object sender, EventArgs e)
{//关闭串口
this.DisposeSerialPort();
this.btnStopRead.Enabled = false;
this.btnDataReader.Enabled = this.btnDataClean.Enabled = false;
this.btnStartRead.Enabled = true;
}
private void btnReader_Click(object sender, EventArgs e)
{//读取模式
this.btnDataReader.Enabled = this.BntDrawLine.Enabled = this.btnDataClean.Enabled = true;
serialPort.WriteLine("R");
}
private void btnDataClean_Click(object sender, EventArgs e)
{//删除数据文件
this.btnDataReader.Enabled = true;
this.btnDataClean.Enabled = true;
serialPort.WriteLine("D");
}
private void btnCleanTextBox_Click(object sender, EventArgs e)
{//清空文本区
this.txtInfo.Text = "";
}
private void frmMain_FormClosing(object sender, FormClosingEventArgs e)
{
this.DisposeSerialPort();
}
private void DisposeSerialPort()
{
if (serialPort != null)
{
try
{
if (serialPort.IsOpen)
{
serialPort.Close();
}
serialPort.Dispose();
}
catch (Exception ex)
{
MessageBox.Show("关闭串口发生错误：" ex.Message, "提示信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
private void AutoDrawLine()
{//绘制曲线
string data = gb;
data = data.Replace("\r\n", ",");
string[] XYZ = data.Split(',');
int time = Convert.ToInt32(XYZ[0]);
int dataX = Convert.ToInt32(XYZ[1]);
int dataY = Convert.ToInt32(XYZ[2]);
this.chartXY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartXY.Series[0].Points.AddXY(dataX, time);
this.chartXY.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartXY.Series[1].Points.AddXY(dataY, time);
this.chartX.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartX.Series[0].Points.AddXY(dataX, time);
this.chartY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartY.Series[0].Points.AddXY(dataY, time);
}
private void DrawLine()
{//绘制曲线
string data = this.txtInfo.Text;
data = data.Replace("\r\n", ",");
string[] XYZ = data.Split(',');
int L = XYZ.Length - 1;
int k = L / 3;
for (int i = 0; i < k; i )
{
try
{
int time = Convert.ToInt32(XYZ[i * 3]);
int dataX = Convert.ToInt32(XYZ[i * 3 1]);
int dataY = Convert.ToInt32(XYZ[i * 3 2]);
this.chartXY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartXY.Series[0].Points.AddXY(dataX, time);
this.chartXY.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartXY.Series[1].Points.AddXY(dataY, time);
this.chartX.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartX.Series[0].Points.AddXY(dataX, time);
this.chartY.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chartY.Series[0].Points.AddXY(dataY, time);
}
catch
{
MessageBox.Show("数据异常，请修正后重绘！");
}
}
}
private void BntDrawLine_Click(object sender, EventArgs e)
{//绘图按钮
this.chartX.Series[0].Points.Clear();
this.chartY.Series[0].Points.Clear();
this.chartXY.Series[0].Points.Clear();
this.chartXY.Series[1].Points.Clear();
this.DrawLine();
}
private void reloadSP_Click(object sender, EventArgs e)
{
this.cmbSerials.Items.Clear();
this.cmbSerials.Items.AddRange(SerialPort.GetPortNames());
this.cmbSerials.SelectedIndex = this.cmbSerials.Items.Count - 1;//Arduino一般在最后一个串口
}
private void BtnSaveText_Click(object sender, EventArgs e)
{
string oriStr = this.txtInfo.Text;
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "文本文件(*.txt)|*.txt";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
//使用“另存为”对话框中输入的文件名实例化StreamWriter对象
StreamWriter sw = new StreamWriter(saveFileDialog.FileName, true);
//向创建的文件中写入内容
sw.Write(oriStr);
//关闭当前文件写入流
sw.Close();
}
}
private void BtnSaveLine_Click(object sender, EventArgs e)
{
this.chart1.Series[0].Points.Clear();
this.chart1.Series[1].Points.Clear();
ChartToImage();
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "JPEG文件|*.jpg";
if (sfd.ShowDialog() == DialogResult.OK)
{
chart1.SaveImage(sfd.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
private void ChartToImage()
{//绘制曲线
string data = this.txtInfo.Text;
data = data.Replace("\r\n", ",");
string[] XYZ = data.Split(',');
int L = XYZ.Length - 1;
int k = L / 3;
chart1.Width = 600;
chart1.Height = k*2;
for (int i = 0; i < k; i )
{
try
{
int time = Convert.ToInt32(XYZ[i * 3]);
int dataX = Convert.ToInt32(XYZ[i * 3 1]);
int dataY = Convert.ToInt32(XYZ[i * 3 2]);
this.chart1.Series[0].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chart1.Series[0].Points.AddXY(dataX, time);
this.chart1.Series[1].ChartType = System.Windows.Forms.DataVisualization.Charting.SeriesChartType.Line;
this.chart1.Series[1].Points.AddXY(dataY, time);
}
catch
{
MessageBox.Show("数据异常，请修正后重绘！");
}
}
}
}
}
标签： C# 串口 SerialCommunication 工具
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