| #소스코드 |
| using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO.Ports; namespace Ultrasonic_RADAR { public partial class Form1 : Form { // 시리얼 관련 변수 string dataIN; //시리얼 읽기 double number1; //문자 -> 부동소수점으로 변경 int measure_flag = 0; // 레이더 그리기 Timer t = new Timer(); int width = 400, height = 400, Hand = 200; int u; int cx, cy; int x, y; int tx, ty, lim = 20; Bitmap bmp; // 픽셀 Pen p; // 선 Graphics g; public Form1() { InitializeComponent(); } private void Form1_Load_1(object sender, EventArgs e) { // 시리얼 포트 초기화 string[] ports = SerialPort.GetPortNames(); cBoxCOMPORT.Items.AddRange(ports); // 레이더 그리기 초기화 bmp = new Bitmap(width + 1, height + 1); this.BackColor = Color.Gray; //center cx = width / 2; cy = height / 2; //initial degree of HAND u = 0; //timer //t.Interval = 5; //in millisecond //t.Tick += new EventHandler(this.t_TICK); //t.Start(); } private void t_TICK(object sender, EventArgs e) { //pen p = new Pen(Color.Green, 1f); //graphics g = Graphics.FromImage(bmp); //calculate x, y coordinate of HAND int tu = (u - lim) % 360; if (u >= 0 && u <= 180) { //right half //u in degree is converted into radian. x = cx + (int)(Hand * Math.Sin(Math.PI * u / 180)); y = cy - (int)(Hand * Math.Cos(Math.PI * u / 180)); } else { x = cx - (int)(Hand * -Math.Sin(Math.PI * u / 180)); y = cy - (int)(Hand * Math.Cos(Math.PI * u / 180)); } if (tu >= 0 && u <= 180) { tx = cx + (int)(150 * Math.Sin(Math.PI * tu / 180)); ty = cy - (int)(150 * Math.Cos(Math.PI * tu / 180)); } else { tx = cx - (int)(150 * -Math.Sin(Math.PI * tu / 180)); ty = cy - (int)(150 * Math.Cos(Math.PI * tu / 180)); } // draw circle g.DrawEllipse(p, 0, 0, width, height); //bigger circle // g.DrawEllipse(p, 80, 80, width - 160, height - 160); //smaller circle // draw perpendicular line // g.DrawLine(p, new Point(cx, 0), new Point(cx, height)); // UP-DOWN // g.DrawLine(p, new Point(cy, 0), new Point(cy, width)); //LEFT-RIGHT //draw HAND // g.DrawLine(new Pen(Color.White, 1f), new Point(cx, cy), new Point(tx, ty)); g.DrawLine(p, new Point(cx, cy), new Point(x, y)); if (serialPort1.IsOpen) { g.DrawLine(new Pen(Color.Red, 1f), new Point(x-1, y-1), new Point(x, y)); } // load bitmap in picturebox1 // 해제 p.Dispose(); g.Dispose(); //update if (u == 360) { u = 0; measure_flag = 0; bmp = new Bitmap(width + 1, height + 1); serialPort1.Write("0"); }else pictureBox1.Image = bmp; } private void btnOpen_Click(object sender, EventArgs e) { try { serialPort1.PortName = cBoxCOMPORT.Text; serialPort1.BaudRate = Convert.ToInt32(cBoxBaudRate.Text); serialPort1.DataReceived += new SerialDataReceivedEventHandler(serialPort1_DataReceived); serialPort1.Open(); progressBar1.Value = 100; } catch (Exception err) { MessageBox.Show(err.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } } private void btnCLose_Click_1(object sender, EventArgs e) { if (serialPort1.IsOpen) { serialPort1.Close(); progressBar1.Value = 0; } } private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e) //시리얼 데이터 읽기 { if (measure_flag == 1) { dataIN = serialPort1.ReadExisting(); try { number1 = System.Convert.ToDouble(dataIN); } catch (FormatException) { } catch (OverflowException) { } Hand = (int)number1; //그리기-값 serialPort1.Write("1"); this.Invoke(new EventHandler(ShowData)); this.Invoke(new EventHandler(t_TICK)); u++; } } private void ShowData(object sender, EventArgs e) //Data 출력 { this.label3.Text = dataIN; } private void Measure_Click(object sender, EventArgs e) { measure_flag = 1; serialPort1.Write("1"); } } } |