Google 圖表 - 定製桑基圖

以下是一個定製桑基圖的示例。我們已經在 Google 圖表配置語法章節中瞭解過用於繪製此圖表的配置。接下來，讓我們看看完整的示例。

配置

我們使用 **sankey** 配置來定製桑基圖。

// Set chart options
var options = {
   width: 550,
   sankey: {
      node: { colors: [ '#a61d4c' ] },
      link: { color: { stroke: 'black', strokeWidth: 1 } },
   }
};

示例

googlecharts_sankey_customized.htm

線上演示

<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 ]
            ]);	

            // Set chart options
            var options = {
               width: 550,
               sankey: {
                  node: { colors: [ '#a61d4c' ] },
                  link: { 
                     color: { 
                        stroke: 'black', 
                        strokeWidth: 1 
                     } 
                  },
               }
            };
                  
            // 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>

結果

驗證結果。

googlecharts_sankey_charts.htm

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