Javascript 繪圖

A.統計繪圖:

 來源:http://www.chartjs.org/
  import: <script src="components/com_foxparsing/Chart.js-master/Chart.js"></script>



B.解決因數值過多,造成x軸labels過度擁擠無法顯示數值的問題.
 

ANS:找到Chart.js在大約938行的calculateXAxisSize函式.

將valueHop = Math.floor(xAxisLength/(data.labels.length-1)); 改成

valueHop = xAxisLength/(data.labels.length-1);