برنامه ی شبیه سازی جفت طوسی  

درون‌چرخه‌زاد

  یونا طالبی مقدم

  مدرسه احسان

  1403-1404

  2025-2026

  ارائه ی فارسی

  دبیر: استاد غیپ پرور

*/

/*

  YOUNA TALEBI MOGHADDAM

  ORIGINALLY MADE FOR MY LITERATURE PRESENTATION

  NOW FOR THE PASSENGER SHOW CASE

  TUSI COUPLE/CYCLOID SIMULATION

*/

​

let t = 0;

let d = 5;

let r1, r2;

let x1, y1;

let px, py;

let centerX, centerY;

let trail = []; // Array to store the trail points

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(0);

  translate(width / 2, height / 2);

  noFill();

  strokeWeight(3);

  stroke(255);

​

  // Draw the larger circle

  r1 = 100;

  circle(0, 0, r1 * 2);

​

  // Draw the smaller circle

  stroke(255, 0, 0);

  strokeWeight(3);

  //CHANGE THE DIVISOR TO GET DIFFERENT SHAPES!

  r2 = r1 / 3;

  x1 = (r1 - r2) * cos(t);

  y1 = (r1 - r2) * sin(t);

  stroke(0, 255, 0);

  strokeWeight(3);

  circle(x1, y1, r2 * 2);

​

  centerX = x1;

  centerY = y1;

​

  px = (r1 - r2) * cos(t) + r2 * cos(((r1 - r2) / r2) * t);

  py = (r1 - r2) * sin(t) - r2 * sin(((r1 - r2) / r2) * t);

  // Add the current point to the trail

  trail.push(createVector(px, py));

​

  // Draw the trail

  stroke(255, 0, 0);

  strokeWeight(4);

  noFill();

  beginShape();

  for (let i = 0; i < trail.length; i++) {

    vertex(trail[i].x, trail[i].y);

  }

  endShape();

​

  // Draw the current point

  stroke(100, 0, 155);

  strokeWeight(15);

  point(px, py);

​

  // Increment t (angle) for the next frame

  t += 0.01;

​

  if (trail.length > 10000) {

    trail.splice(0, 1); // Remove the oldest point

  }

}

​