Circular Barchart

var innerSize = 100;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(100);

  angleMode(DEGREES);

}

​

function draw() {

  background(0,70);

  translate(width/2,height/2);

  background(0);

  noFill();

  stroke(255);

  strokeWeight(2);

  for (var i=0; i<72; i++) {

    var randomHeight = random(innerSize,innerSize+50); //You need to replace this value to the spectrum

    var x1 = cos(i*5) * innerSize;

    var y1 = sin(i*5) * innerSize;

    var x2 = cos(i*5) * randomHeight;

    var y2 = sin(i*5) * randomHeight;

    line(x1,y1,x2,y2);

  }

}