Processing_プログラム解説

2023年8月22日BF、卒業論文Shigeta

はじめに
前回のBFプログラム解説に続き, processingのプログラムについて要点を絞って解説していく。 processingのプログラム解説が終われば, 卒論Ⅰは残りまとめだけ。

要点
・.csv発行
・時刻表示, カウント
・皮膚温の波形をプロット
・Arduino開発環境と連携し, シリアルモニタの値を確認(安静期間の確認も)

BFプログラムの解説

SBF230707(ST波形表示, シリアル通信)

import processing.serial.*;

Serial myPort;
String portName = "COM6"; //BT serial port
int baudRate = 115200;
int dataPlotWidth = 640;
int dataPlotHeight = 200;
float[] data = new float[5];
String[] dataMV = new String[5];
float[] prevData = new float[5];
color[] colors = {
  color(255, 0, 0), 
  color(0, 0, 255), 
  color(0, 0, 0, 0), 
  color(0, 0, 0, 0)
};
int datacount=0;
String OutFileName;
String buf2;
PrintWriter writer;
int startMillis;


void setup() 
{
  //size(dataPlotWidth, dataPlotHeight);
  size(600,500);
  myPort = new Serial(this, portName, baudRate);
  
  OutFileName=getTimestamp()+".csv";
  writer = createWriter("./data/"+OutFileName); // Create a new file in the sketch directory
  buf2="";

}

void draw()
{
  
  if((datacount % 600) == 0) {
    background(255);  // clear screen    
    fill(0, 0, 0); // set the fill color to black
    textSize(12);
    text("40 deg", 10, 20); // 
  }
  
  while (myPort.available() > 0) 
  {
    String inString = myPort.readStringUntil('\n');
    
    if (inString != null) 
    {
      inString = trim(inString);
      String[] parts = split(inString, ',');
      
      if(parts.length >3) 
      {
        for (int i = 0; i < 5; i++) 
        {
          prevData[i] = data[i];
          data[i] = map(float(parts[i]), 20, 40, 0, 500);  // Assuming your data is in the range 0-200
          dataMV[i] = parts[i];
          
        }
        String stamp=getTimestamp2();
        String etime= getElapsedTime();
        String buf=stamp+","+etime+","+dataMV[0] + "," + dataMV[1] + "," + dataMV[2] + "," + dataMV[3] + "," + dataMV[4];
        println(buf);
        buf2=buf2+buf+"\n";
        
        if(datacount%10==0){
          writer.print(buf2);
          writer.flush();
          buf2="";
        }

        int xp = datacount%600;
        strokeWeight(1);
        for (int i = 0; i < 1; i++) 
        {
          stroke(colors[i]);
          line(xp-1, 500 - prevData[i], xp, 500 - data[i]);
        }
        
        drawCurrentTime();
        drawElapsedTime();

    
        datacount++;
      }
    }
  }
}

void stop() {
  writer.flush(); // Writes the remaining data to the file
  writer.close(); // Finishes the file
  super.stop();
}

Subroutine1(現在時刻, 経過時間)

String getTimestamp() {
  int y = year();
  int m = month();
  int d = day();
  int h = hour();
  int min = minute();
  int s = second();

  // Use nf() to add leading zeroes to each time component if needed
  String timestamp = nf(y, 4) + nf(m, 2) + nf(d, 2) + "_" + nf(h, 2) + nf(min, 2) + nf(s, 2);
  
  return timestamp;
}

String getTimestamp2() {
  int h = hour();
  int min = minute();
  int s = second();

  // Use nf() to add leading zeroes to each time component if needed
  String timestamp =  nf(h, 2) +":"+ nf(min, 2) +":"+ nf(s, 2);
  
  return timestamp;
}

void drawCurrentTime()
{
  String stamp2=getTimestamp2();
  fill(255); noStroke();
  rect(450, 5,130,50); 
  fill(0); stroke(0);textSize(24); 
  text(stamp2, 450, 30); //   
}

void drawElapsedTime()
{
  String elapsedTime = getElapsedTime();
  fill(255); noStroke();
  rect(450, 55,130,50); 
  fill(0); stroke(0);textSize(24); 
  text(elapsedTime, 450, 60);
}

String getElapsedTime() {
  int elapsedMillis = millis() - startMillis;

  int s = elapsedMillis / 1000;
  int m = s / 60;
  int h = m / 60;

  s = s % 60;
  m = m % 60;

  return nf(h, 2) + ":" + nf(m, 2) + ":" + nf(s, 2);
}