Google Charts - Multilevel Sankey Chart

Following is an example of a sankey diagram with multiple levels. We've already seen the configuration used to draw this chart in Google Charts Configuration Syntax chapter. So, let's see the complete example.

Configurations

We've used Sankey class to show sankey diagram.

//Sankey chart
var chart = new google.visualization.Sankey(document.getElementById('container'));

Example

googlecharts_sankey_multilevel.htm

Live Demo

<html>
   <head>
      <title>Google Charts Tutorial</title>
      <script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js">
      </script>
      <script type = "text/javascript" src = "https://www.google.com/jsapi">
      </script>
      <script type = "text/javascript">
         google.charts.load('current', {packages: ['sankey']});     
      </script>
   </head>
   
   <body>
      <div id = "container" style = "width: 550px; height: 400px; margin: 0 auto">
      </div>
      <script language = "JavaScript">
         function drawChart() {
            // Define the chart to be drawn.
            var data = new google.visualization.DataTable();   
            data.addColumn('string', 'From');
            data.addColumn('string', 'To');
            data.addColumn('number', 'Weight');

            data.addRows([
               [ 'Brazil', 'Portugal', 5 ],
               [ 'Brazil', 'France', 1 ],
               [ 'Brazil', 'Spain', 1 ],
               [ 'Brazil', 'England', 1 ],
               
               [ 'Canada', 'Portugal', 1 ],
               [ 'Canada', 'France', 5 ],
               [ 'Canada', 'England', 1 ],
               
               [ 'Mexico', 'Portugal', 1 ],
               [ 'Mexico', 'France', 1 ],
               [ 'Mexico', 'Spain', 5 ],
               [ 'Mexico', 'England', 1 ],
               
               [ 'USA', 'Portugal', 1 ],
               [ 'USA', 'France', 1 ],
               [ 'USA', 'Spain', 1 ],
               [ 'USA', 'England', 5 ],
               
               [ 'Portugal', 'Angola', 2 ],
               [ 'Portugal', 'Senegal', 1 ],
               [ 'Portugal', 'Morocco', 1 ],
               [ 'Portugal', 'South Africa', 3 ],
               
               [ 'France', 'Angola', 1 ],
               [ 'France', 'Senegal', 3 ],
               [ 'France', 'Mali', 3 ],
               [ 'France', 'Morocco', 3 ],
               [ 'France', 'South Africa', 1 ],
               
               [ 'Spain', 'Senegal', 1 ],
               [ 'Spain', 'Morocco', 3 ],
               [ 'Spain', 'South Africa', 1 ],
               
               [ 'England', 'Angola', 1 ],
               [ 'England', 'Senegal', 1 ],
               [ 'England', 'Morocco', 2 ],
               [ 'England', 'South Africa', 7 ],
               
               [ 'South Africa', 'China', 5 ],
               [ 'South Africa', 'India', 1 ],
               [ 'South Africa', 'Japan', 3 ],
               
               [ 'Angola', 'China', 5 ],
               [ 'Angola', 'India', 1 ],
               [ 'Angola', 'Japan', 3 ],
               
               [ 'Senegal', 'China', 5 ],
               [ 'Senegal', 'India', 1 ],
               [ 'Senegal', 'Japan', 3 ],
               
               [ 'Mali', 'China', 5 ],
               [ 'Mali', 'India', 1 ],
               [ 'Mali', 'Japan', 3 ],
               
               [ 'Morocco', 'China', 5 ],
               [ 'Morocco', 'India', 1 ],
               [ 'Morocco', 'Japan', 3 ]
            ]);	

            // Set chart options
            var options = {width: 550};
                  
            // Instantiate and draw the chart.
            var chart = new google.visualization.Sankey(document.getElementById('container'));
            chart.draw(data, options);
         }
         google.charts.setOnLoadCallback(drawChart);
      </script>
   </body>
</html>

Result

Verify the result.

googlecharts_sankey_charts.htm