SVG jquery rotation

gistfile1.txt

function rotate( $el, start, end, time ){

  var bb = $el[0].getBBox();
  var center = {
    x: ( bb.width ) / 2 + bb.x,
    y: ( bb.height ) / 2 + bb.y,			
  };

  $({
    r: start
  }).animate({
      r: end
    },{
    duration: time || 1000,
    step: function( now, fx ) {
      var data = fx.elem.id + " " + fx.prop + ": " + now;
      $el.attr("transform", "rotate(" + now.toPrecision(3) +" "+ center.x.toPrecision(3) +" "+ center.y.toPrecision(3) +")" );
    }
  });
}

var animated = false;
$('svg').click(function () {
  if( animated ) return false;
  animated = true;
  $(this).attr("class", "animar");
  $(".circulo").each(function(){
    rotate( $( this ), 0 , -45, 1000 );
  });
  rotate( $( "#estrutura" ), 0 , 45, 1000 );
});