// Mathematical Roses

// Video: https://youtu.be/f5QBExMNB1I

// Based on: https://en.wikipedia.org/wiki/Rose_(mathematics)

// https://thecodingtrain.com/CodingChallenges/055-roses.html

​

var d = 8;

var n = 5;

​

function setup() {

  createCanvas(400, 400);

​

}

​

function draw() {

  n = round(random(1,8));

  d = round(random(1,8));

  var k = n / d;

  //var k = round(random(1,8));

  background(21, 29, 59);

  push();

  translate(width / 2, height / 2);

​

  beginShape();

  stroke(216, 33, 72);

  noFill();

  strokeWeight(1);

  for (var a = 0; a < TWO_PI*d; a += 0.01) {

    var r = 200 * cos(k * a);

    var x = r * cos(a);

    var y = r * sin(a);

    vertex(x, y);

  }

  endShape(CLOSE);

  pop();

  noLoop();

}

​

​