Arduino Radar with Simulink

/*   Arduino Radar Project
 *
 *   Updated version. Fits any screen resolution!
 *   Just change the values in the size() function,
 *   with your screen resolution.
 *      
 *  by Dejan Nedelkovski, updated by Rexhep Mustafovski
 *  
 */
import processing.serial.*; // imports library for serial communication
import java.awt.event.KeyEvent; // imports library for reading the data from the serial port
import java.io.IOException;
Serial myPort; // defines Object Serial
// defubes variables
String angle="";
String distance="";
String data="";
String noObject;
float pixsDistance;
float Razmer;  // 
int iAngle, iDistance;
int index1=0;
int index2=0;
int pravec=1;
PFont orcFont;
void setup() {
  
 
 fullScreen();   //  
 
 Razmer = (height-height*0.21)*0.025; // 
 
 smooth();
 myPort = new Serial(this,"COM3", 115200); // starts the serial communication
 myPort.bufferUntil('.'); // reads the data from the serial port up to the character '.'. So actually it reads this: angle,distance.
 orcFont = loadFont("OCRAExtended-30.vlw");
  
}
void draw() {
  
  fill(98,245,31);
  textFont(orcFont);
  // simulating motion blur and slow fade of the moving line
  noStroke();
  fill(0,5); 
  rect(0, 0, width, height-height*0.065); 
  
  fill(98,245,31); // green color
  // calls the functions for drawing the radar
  drawRadar(); 
  drawLine();
  drawObject();
  drawText();
  
}
void serialEvent (Serial myPort) { // starts reading data from the Serial Port
  // reads the data from the Serial Port up to the character '.' and puts it into the String variable "data".
  data = myPort.readStringUntil('.');
  data = data.substring(0,data.length()-1);
  
  index1 = data.indexOf(","); // find the character ',' and puts it into the variable "index1"
  
  angle= trim(data.substring(0, index1));                     // read the data from position "0" to position of the variable index1 or thats the value of the angle the Arduino Board sent into the Serial Port
  distance= trim(data.substring(index1+1, data.length()));    // read the data from position "index1" to the end of the data pr thats the value of the distance
  // new updated trimed data
    
  // converts the String variables into Integer
  iAngle = int(angle);
  iDistance = int(distance);
}
void drawRadar() {
  pushMatrix();
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  noFill();
  strokeWeight(2);
  stroke(98,245,31);
  // draws the arc lines
 
  arc(0,0,2*40*Razmer,2*40*Razmer,PI,TWO_PI);     //      New updated formulas
  arc(0,0,2*30*Razmer,2*30*Razmer,PI,TWO_PI);
  arc(0,0,2*20*Razmer,2*20*Razmer,PI,TWO_PI);
  arc(0,0,2*10*Razmer,2*10*Razmer,PI,TWO_PI);
  
  
  // draws the angle lines
  line(-width/2,0,width/2,0);
  line(0,0,(-width/2)*cos(radians(30)),(-width/2)*sin(radians(30)));
  line(0,0,(-width/2)*cos(radians(60)),(-width/2)*sin(radians(60)));
  line(0,0,(-width/2)*cos(radians(90)),(-width/2)*sin(radians(90)));
  line(0,0,(-width/2)*cos(radians(120)),(-width/2)*sin(radians(120)));
  line(0,0,(-width/2)*cos(radians(150)),(-width/2)*sin(radians(150)));
  line((-width/2)*cos(radians(30)),0,width/2,0);
  popMatrix();
}
void drawObject() {
  pushMatrix();
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  strokeWeight(9);
  stroke(255,10,10); // red color
 
  pixsDistance = iDistance*Razmer; // converts the distance from the sensor from cm to pixels 
  // limiting the range to 40 cms
  if(iDistance<40){
    // draws the object according to the angle and the distance

  line(pixsDistance*cos(radians(iAngle)),-pixsDistance*sin(radians(iAngle)),40*Razmer*cos(radians(iAngle)),-40*Razmer*sin(radians(iAngle)));  // new updated line 

  popMatrix();
}
void drawLine() {
  pushMatrix();
  strokeWeight(9);
  stroke(30,250,60);
  translate(width/2,height-height*0.074); // moves the starting coordinats to new location
  line(0,0,40*Razmer*cos(radians(iAngle)),-40*Razmer*sin(radians(iAngle))); // new updated line
  popMatrix();
}
void drawText() { // draws the texts on the screen
  
  pushMatrix();
  if(iDistance>40) {
  noObject = "Out of Range";
  }
  else {
  noObject = "In Range";
  }
  fill(0,0,0);
  noStroke();
  rect(0, height-height*0.0648, width, height);
  fill(98,245,31);
  textSize(25);
  
  text("10cm",width/2+7*Razmer,height-height*0.0833);
  text("20cm",width/2+17*Razmer,height-height*0.0833);
  text("30cm",width/2+27*Razmer,height-height*0.0833);
  text("40cm",width/2+37*Razmer,height-height*0.0833);
  
  textSize(40);
  text("Object: " + noObject, width-width*0.875, height-height*0.0277);
  text("Angle: " + iAngle +" ", width-width*0.48, height-height*0.0277);
  text("Distance: ", width-width*0.26, height-height*0.0277);
  if(iDistance<40) {
  text("        " + iDistance +" cm", width-width*0.225, height-height*0.0277);
  }
  textSize(25);
  fill(98,245,60);
  translate((width-width*0.4994)+width/2*cos(radians(30)),(height-height*0.0907)-width/2*sin(radians(30)));
  rotate(-radians(-60));
  text("30",0,0);
  resetMatrix();
  translate((width-width*0.503)+width/2*cos(radians(60)),(height-height*0.0888)-width/2*sin(radians(60)));
  rotate(-radians(-30));
  text("60",0,0);
  resetMatrix();
  translate((width-width*0.507)+width/2*cos(radians(90)),(height-height*0.0833)-width/2*sin(radians(90)));
  rotate(radians(0));
  text("90",0,0);
  resetMatrix();
  translate(width-width*0.513+width/2*cos(radians(120)),(height-height*0.07129)-width/2*sin(radians(120)));
  rotate(radians(-30));
  text("120",0,0);
  resetMatrix();
  translate((width-width*0.5104)+width/2*cos(radians(150)),(height-height*0.0574)-width/2*sin(radians(150)));
  rotate(radians(-60));
  text("150",0,0);
  popMatrix(); 
}