VORTEX

function setup() {

  createCanvas(300, 300);

  background(255);

​

}

​

function draw() {

  stroke(0);

​

line(0,150,300,150); //horizontal

line(150,0,150,300); //vertial

​

​

line(12.5,0,0,150);

line(25,0,0,137.5);

line(37.5,0,0,123);

line(50,0,0,112.5);

line(62.5,0,0,100);

line(75,0,0,87.5);

line(87.5,0,0,75);

line(100,0,0,62.5);

line(112.5,0,0,50);

line(125,0,0,37.5);

line(137.5,0,0,25);

line(150,0,0,12.5);

​

line(0,150,12.5,300);

line(0,162.5,25,300);

line(0,175,37.5,300);

line(0,187.5,50,300);

line(0,200,62.5,300);

line(0,212.5,75,300);

line(0,225,87.5,300);

line(0,237.5,100,300);

line(0,250,112.5,300);

line(0,262.5,125,300);

line(0,275,137.5,300);

line(0,287.5,150,300);

​

line(150,0,300,12.5);

line(162.5,0,300,25);

line(175,0,300,37.5);

line(187.5,0,300,50);

line(200,0,300,62.5);

line(212.5,0,300,75);

line(225,0,300,87.5);

line(237.5,0,300,100);

line(250,0,300,112.5);

line(262.5,0,300,137.5);

line(275,0,300,150);

line(287.5,0,300,150);

​

line(300,150,287.5,300);

line(300,162.5,275,300);

line(300,175,262.5,300);

line(300,187.5,250,300);

line(300,200,237.5,300);

line(300,212.5,225,300);

line(300,225,212.5,300);

line(300,237.5,200,300);

line(300,250,187.5,300);

line(300,262.5,175,300);

line(300,275,162.5,300);

line(300,297.5,150,300);

​

line(150,0,137.5,150);

line(150,12.5,125,150);

line(150,25,112.5,150);

line(150,37.5,100,150);

line(150,50,87.5,150);

line(150,62.5,75,150);

line(150,75,62.5,150);

line(150,87.5,50,150);

line(150,100,37.5,150);

line(150,112.5,25,150);

line(150,125,12.5,150);

line(150,137.5,0,150);

​

line(150,297.5,137.5,150);

line(150,275,125,150);

line(150,262.5,112.5,150);

line(150,250,100,150);

line(150,237.5,75,150);

line(150,225,62.5,150);

line(150,212.5,50,150);

line(150,200,37.5,150);

line(150,187.5,25,150);

line(150,175,12.5,150);

line(150,162.5,12.5,150);

​

line(150,0,162.5,150);

line(150,12.5,175,150);

line(150,25,187.5,150);

line(150,37.5,200,150);

line(150,50,212.5,150);

line(150,62.5,225,150);

line(150,75,237.5,150);

line(150,87.5,250,150);

line(150,100,262.5,150);

line(150,112.5,275,150);

line(150,125,287.5,150);

line(150,137.5,300,150);

​

line(162.5,150,150,300);

line(175,150,150,287.5);

line(187.5,150,150.5,275);

line(200,150,150,262.5);

line(212,150,150,250);

line(225,150,150,237.5);

line(237.5,150,150.5,225);

line(250,150,150,212.5);

line(262.5,150,150,200);

line(275,150,150,187.5);

line(287.5,150,150,175);

line(300,150,150,162.5);

​

​

}