rotate.js Example File

var ctx = document.getElementById('tutorial').getContext('2d');
  ctx.translate(75,75);
  for (i=1;i<6;i++){ // Loop through rings (from inside to out)
    ctx.save();
    ctx.fillStyle = 'rgb('+(51*i)+','+(255-51*i)+',255)';
    for (j=0;j<i*6;j++){ // draw individual dots
      ctx.rotate(Math.PI*2/(i*6));
      ctx.beginPath();
      ctx.arc(0,i*12.5,5,0,Math.PI*2,true);
      ctx.fill();
    }
    ctx.restore();
  }