title: ChartJS onclick fill area (Radar Chart)
body: <p>I'm trying to create a function in JQuery that increase and decrease the points clicked. I've managed to create the onclick event that increases the points, but can't figure out how to decrease it.</p>
  
  <pre><code>$("#radarChart").click(
      function (evt) {
          var activePoints = myRadarChart.getPointsAtEvent(evt);
          var Values = activePoints[0].label + ' = ' + activePoints[0].value;
          activePoints[0].value++;
      }
  );
  </code></pre>
  
  <p>The above function increases the value of a point when clicked, in order to decrease it I need to know if the filled area is clicked. </p>
  
  <p>I looked at ChartJS documentation and didn't come across it. Other charts do have it, for example Polar Area Chart, when you are hovering a section, it highlights, meaning there is a function that detects mouse hovering over segments.</p>
  
  <p>Does a similar function exist in Radar Charts?</p>
  
  <p>My <a href="http://codepen.io/anon/pen/PpPwJw" rel="nofollow noreferrer">codepen</a>.</p>
  
  <p>If not, any ideas on how I could achieve this, would be appreciated.</p>
  
  <p>The only alternative I can think of, would be to create 10 buttons, 5 labels. The buttons would be + and -, increase and decrease the label. This takes too much space in my opinion, so I'm trying to avoid it.</p>
  
  <p>Thanks,</p>