src/visual-data.js
function() {

            var self = this;

            // Draw the chart,
            $('#' + self.getId('chart')).html('')
              .bilevelSunburst({date: self.options.date}, 
                               self.treemapData);
        }
function() {

            var self = this;

            // Draw the chart,
            $('#' + self.getId('chart')).html('')
              .bilevelSunburst({date: self.options.date}, 
                               self.treemapData);
        }
function ( ) { var self = this ; // Draw the chart, $ ( '#' + self . getId ( 'chart' ) ) . html ( '' ) . bilevelSunburst ( { date : self . options . date } , self . treemapData ) ; }
create this utility function to draw chart,
we could use it whenever we need.
For example,
after we re-arrange the dashboard, we will need re-draw the chart.
the chart will re-calculate all positions.
create this utility function to draw chart we could use it whenever we need . For example after we re - arrange the dashboard we will need re - draw the chart . the chart will re - calculate all positions .