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              @import url(//fonts.googleapis.com/css?family=Oswald:400);
* {
  margin: 0;
  padding: 0;
}
body {
  background-color: #e9efec;
  background-image: url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cGF0aCBkPSJNMjggNjZMMCA1MEwwIDE2TDI4IDBMNTYgMTZMNTYgNTBMMjggNjZMMjggMTAwIiBmaWxsPSJub25lIiBzdHJva2U9IiNmZmYiIHN0cm9rZS13aWR0aD0iMSI+PC9wYXRoPgo8L3N2Zz4=);
  font-family: "Oswald", "Helvetica Newe", Helvetica, sans-serif;
}
.chart {
  position: absolute;
  width: 450px;
  height: 450px;
  top: 50%;
  left: 50%;
  margin: -225px 0 0 -225px;
}
.pieTip {
  position: absolute;
  float: left;
  min-width: 30px;
  max-width: 300px;
  padding: 5px 18px 6px;
  border-radius: 2px;
  background: rgba(255,255,255,.97);
  color: #444;
  font-size: 19px;
  text-shadow: 0 1px 0 #fff;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.3;
  letter-spacing: .06em;
  box-shadow: 0 0 3px rgba(0,0,0,0.2), 0 1px 2px rgba(0,0,0,0.5);
  -webkit-transform: all .3s;
     -moz-transform: all .3s;
      -ms-transform: all .3s;
       -o-transform: all .3s;
          transform: all .3s;
  pointer-events: none;
}
.pieTip:after {
      position: absolute;
      left: 50%;
      bottom: -6px;
      content: "";
      height: 0;
      margin: 0 0 0 -6px;
      border-right: 5px solid transparent;
      border-left: 5px solid transparent;
      border-top: 6px solid rgba(255,255,255,.95);
      line-height: 0;
}
.chart path { cursor: pointer; }
            
          
!
            
              $(function(){
  $("#pieChart").drawPieChart([
    { title: "Tokyo",         value : 180,  color: "#02B3E7" },
    { title: "San Francisco", value:  60,   color: "#CFD3D6" },
    { title: "London",        value : 50,   color: "#736D79" },
    { title: "New York",      value:  30,   color: "#776068" },
    { title: "Sydney",        value : 20,   color: "#EB0D42" },
    { title: "Berlin",        value : 20,   color: "#FFEC62" },
    { title: "Osaka",         value : 7,    color: "#04374E" }
  ]);
});

/*!
 * jquery.drawPieChart.js
 * Version: 0.3(Beta)
 * Inspired by Chart.js(http://www.chartjs.org/)
 *
 * Copyright 2013 hiro
 * https://github.com/githiro/drawPieChart
 * Released under the MIT license.
 */
;(function($, undefined) {
  $.fn.drawPieChart = function(data, options) {
    var $this = this,
      W = $this.width(),
      H = $this.height(),
      centerX = W/2,
      centerY = H/2,
      cos = Math.cos,
      sin = Math.sin,
      PI = Math.PI,
      settings = $.extend({
        segmentShowStroke : true,
        segmentStrokeColor : "#fff",
        segmentStrokeWidth : 1,
        baseColor: "#fff",
        baseOffset: 15,
        edgeOffset: 30,//offset from edge of $this
        pieSegmentGroupClass: "pieSegmentGroup",
        pieSegmentClass: "pieSegment",
        lightPiesOffset: 12,//lighten pie's width
        lightPiesOpacity: .3,//lighten pie's default opacity
        lightPieClass: "lightPie",
        animation : true,
        animationSteps : 90,
        animationEasing : "easeInOutExpo",
        tipOffsetX: -15,
        tipOffsetY: -45,
        tipClass: "pieTip",
        beforeDraw: function(){  },
        afterDrawed : function(){  },
        onPieMouseenter : function(e,data){  },
        onPieMouseleave : function(e,data){  },
        onPieClick : function(e,data){  }
      }, options),
      animationOptions = {
        linear : function (t){
          return t;
        },
        easeInOutExpo: function (t) {
          var v = t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t;
          return (v>1) ? 1 : v;
        }
      },
      requestAnimFrame = function(){
        return window.requestAnimationFrame ||
          window.webkitRequestAnimationFrame ||
          window.mozRequestAnimationFrame ||
          window.oRequestAnimationFrame ||
          window.msRequestAnimationFrame ||
          function(callback) {
            window.setTimeout(callback, 1000 / 60);
          };
      }();

    var $wrapper = $('<svg width="' + W + '" height="' + H + '" viewBox="0 0 ' + W + ' ' + H + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"></svg>').appendTo($this);
    var $groups = [],
        $pies = [],
        $lightPies = [],
        easingFunction = animationOptions[settings.animationEasing],
        pieRadius = Min([H/2,W/2]) - settings.edgeOffset,
        segmentTotal = 0;

    //Draw base circle
    var drawBasePie = function(){
      var base = document.createElementNS('http://www.w3.org/2000/svg', 'circle');
      var $base = $(base).appendTo($wrapper);
      base.setAttribute("cx", centerX);
      base.setAttribute("cy", centerY);
      base.setAttribute("r", pieRadius+settings.baseOffset);
      base.setAttribute("fill", settings.baseColor);
    }();

    //Set up pie segments wrapper
    var pathGroup = document.createElementNS('http://www.w3.org/2000/svg', 'g');
    var $pathGroup = $(pathGroup).appendTo($wrapper);
    $pathGroup[0].setAttribute("opacity",0);

    //Set up tooltip
    var $tip = $('<div class="' + settings.tipClass + '" />').appendTo('body').hide(),
      tipW = $tip.width(),
      tipH = $tip.height();

    for (var i = 0, len = data.length; i < len; i++){
      segmentTotal += data[i].value;
      var g = document.createElementNS('http://www.w3.org/2000/svg', 'g');
      g.setAttribute("data-order", i);
      g.setAttribute("class", settings.pieSegmentGroupClass);
      $groups[i] = $(g).appendTo($pathGroup);
      $groups[i]
        .on("mouseenter", pathMouseEnter)
        .on("mouseleave", pathMouseLeave)
        .on("mousemove", pathMouseMove)
        .on("click", pathClick);

      var p = document.createElementNS('http://www.w3.org/2000/svg', 'path');
      p.setAttribute("stroke-width", settings.segmentStrokeWidth);
      p.setAttribute("stroke", settings.segmentStrokeColor);
      p.setAttribute("stroke-miterlimit", 2);
      p.setAttribute("fill", data[i].color);
      p.setAttribute("class", settings.pieSegmentClass);
      $pies[i] = $(p).appendTo($groups[i]);

      var lp = document.createElementNS('http://www.w3.org/2000/svg', 'path');
      lp.setAttribute("stroke-width", settings.segmentStrokeWidth);
      lp.setAttribute("stroke", settings.segmentStrokeColor);
      lp.setAttribute("stroke-miterlimit", 2);
      lp.setAttribute("fill", data[i].color);
      lp.setAttribute("opacity", settings.lightPiesOpacity);
      lp.setAttribute("class", settings.lightPieClass);
      $lightPies[i] = $(lp).appendTo($groups[i]);
    }

    settings.beforeDraw.call($this);
    //Animation start
    triggerAnimation();

    function pathMouseEnter(e){
      var index = $(this).data().order;
      $tip.text(data[index].title + ": " + data[index].value).fadeIn(200);
      if ($groups[index][0].getAttribute("data-active") !== "active"){
        $lightPies[index].animate({opacity: .8}, 180);
      }
      settings.onPieMouseenter.apply($(this),[e,data]);
    }
    function pathMouseLeave(e){
      var index = $(this).data().order;
      $tip.hide();
      if ($groups[index][0].getAttribute("data-active") !== "active"){
        $lightPies[index].animate({opacity: settings.lightPiesOpacity}, 100);
      }
      settings.onPieMouseleave.apply($(this),[e,data]);
    }
    function pathMouseMove(e){
      $tip.css({
        top: e.pageY + settings.tipOffsetY,
        left: e.pageX - $tip.width() / 2 + settings.tipOffsetX
      });
    }
    function pathClick(e){
      var index = $(this).data().order;
      var targetGroup = $groups[index][0];
      for (var i = 0, len = data.length; i < len; i++){
        if (i === index) continue;
        $groups[i][0].setAttribute("data-active","");
        $lightPies[i].css({opacity: settings.lightPiesOpacity});
      }
      if (targetGroup.getAttribute("data-active") === "active"){
        targetGroup.setAttribute("data-active","");
        $lightPies[index].css({opacity: .8});
      } else {
        targetGroup.setAttribute("data-active","active");
        $lightPies[index].css({opacity: 1});
      }
      settings.onPieClick.apply($(this),[e,data]);
    }
    function drawPieSegments (animationDecimal){
      var startRadius = -PI/2,//-90 degree
          rotateAnimation = 1;
      if (settings.animation) {
        rotateAnimation = animationDecimal;//count up between0~1
      }

      $pathGroup[0].setAttribute("opacity",animationDecimal);

      //draw each path
      for (var i = 0, len = data.length; i < len; i++){
        var segmentAngle = rotateAnimation * ((data[i].value/segmentTotal) * (PI*2)),//start radian
            endRadius = startRadius + segmentAngle,
            largeArc = ((endRadius - startRadius) % (PI * 2)) > PI ? 1 : 0,
            startX = centerX + cos(startRadius) * pieRadius,
            startY = centerY + sin(startRadius) * pieRadius,
            endX = centerX + cos(endRadius) * pieRadius,
            endY = centerY + sin(endRadius) * pieRadius,
            startX2 = centerX + cos(startRadius) * (pieRadius + settings.lightPiesOffset),
            startY2 = centerY + sin(startRadius) * (pieRadius + settings.lightPiesOffset),
            endX2 = centerX + cos(endRadius) * (pieRadius + settings.lightPiesOffset),
            endY2 = centerY + sin(endRadius) * (pieRadius + settings.lightPiesOffset);
        var cmd = [
          'M', startX, startY,//Move pointer
          'A', pieRadius, pieRadius, 0, largeArc, 1, endX, endY,//Draw outer arc path
          'L', centerX, centerY,//Draw line to the center.
          'Z'//Cloth path
        ];
        var cmd2 = [
          'M', startX2, startY2,
          'A', pieRadius + settings.lightPiesOffset, pieRadius + settings.lightPiesOffset, 0, largeArc, 1, endX2, endY2,//Draw outer arc path
          'L', centerX, centerY,
          'Z'
        ];
        $pies[i][0].setAttribute("d",cmd.join(' '));
        $lightPies[i][0].setAttribute("d", cmd2.join(' '));
        startRadius += segmentAngle;
      }
    }

    var animFrameAmount = (settings.animation)? 1/settings.animationSteps : 1,//if settings.animationSteps is 10, animFrameAmount is 0.1
        animCount =(settings.animation)? 0 : 1;
    function triggerAnimation(){
      if (settings.animation) {
        requestAnimFrame(animationLoop);
      } else {
        drawPieSegments(1);
      }
    }
    function animationLoop(){
      animCount += animFrameAmount;//animCount start from 0, after "settings.animationSteps"-times executed, animCount reaches 1.
      drawPieSegments(easingFunction(animCount));
      if (animCount < 1){
        requestAnimFrame(arguments.callee);
      } else {
        settings.afterDrawed.call($this);
      }
    }
    function Max(arr){
      return Math.max.apply(null, arr);
    }
    function Min(arr){
      return Math.min.apply(null, arr);
    }
    return $this;
  };
})(jQuery);
            
          
!
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