Google Earth Engine（GEE）——图表概述（准备数据）

Google Earth Engine（GEE）——图表概述（准备数据） 2023-07-14 256

<html>
  <head>
    <!--Load the AJAX API-->
    <script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
    <script type="text/javascript">

      // Load the Visualization API and the piechart package.
      google.charts.load(current, {packages:[corechart]});

      // Set a callback to run when the Google Visualization API is loaded.
      google.charts.setOnLoadCallback(drawChart);

      // 创建和填充数据表、实例化饼图、传入数据并绘制数据的回调。
      function drawChart() {

      // 创建矢量图
      var data = new google.visualization.DataTable();
      data.addColumn(string, Topping);
      data.addColumn(number, Slices);
      data.addRows([
        [Mushrooms, 3],
        [Onions, 1],
        [Olives, 1], 
        [Zucchini, 1],
        [Pepperoni, 2]
      ]);

      // 设置图形选项
      var options = {title:How Much Pizza I Ate Last Night,
                     width:400,
                     height:300};

      // 实例化并绘制我们的图表，传入一些选项
      var chart = new google.visualization.PieChart(document.getElementById(chart_div));
      chart.draw(data, options);
    }
    </script>
  </head>

  <body>
<!--Div that will hold the pie chart-->
    <div id="chart_div" style="width:400; height:300"></div>
  </body>
</html>