Question

这个问题可能是最愚蠢的，但我试图让代码运行直接来自谷歌图表指南网站，并且令人惊讶的是它不起作用。

我复制粘贴了以下URL中的代码，并尝试在firefox浏览器中运行它。它给了我以下错误，我也找不到日志中的任何错误。不知道出了什么问题。代码来源：https://developers.google.com/chart/interactive/docs/gallery/controls#using-controls--and-dashboards

代码

<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 controls package.
      google.charts.load('current', {'packages':['controls']});

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

      // Callback that creates and populates a data table,
      // instantiates a dashboard, a range slider and a pie chart,
      // passes in the data and draws it.
      function drawDashboard() {

        // Create our data table.
        var data = google.visualization.arrayToDataTable([
          ['Name', 'Donuts eaten'],
          ['Michael' , 5],
          ['Elisa', 7],
          ['Robert', 3],
          ['John', 2],
          ['Jessica', 6],
          ['Aaron', 1],
          ['Margareth', 8]
        ]);

        // Create a dashboard.
        var dashboard = new google.visualization.Dashboard(
            document.getElementById('dashboard_div'));

        // Create a range slider, passing some options
        var donutRangeSlider = new google.visualization.ControlWrapper({
          'controlType': 'NumberRangeFilter',
          'containerId': 'filter_div',
          'options': {
            'filterColumnLabel': 'Donuts eaten'
          }
        });

        // Create a pie chart, passing some options
        var pieChart = new google.visualization.ChartWrapper({
          'chartType': 'PieChart',
          'containerId': 'chart_div',
          'options': {
            'width': 300,
            'height': 300,
            'pieSliceText': 'value',
            'legend': 'right'
          }
        });

        // Establish dependencies, declaring that 'filter' drives 'pieChart',
        // so that the pie chart will only display entries that are let through
        // given the chosen slider range.
        dashboard.bind(donutRangeSlider, pieChart);

        // Draw the dashboard.
        dashboard.draw(data);
      }
    </script>
</head>

<body>
    <!--Div that will hold the dashboard-->
    <div id="dashboard_div">
        <!--Divs that will hold each control and chart-->
        <div id="filter_div"></div>
        <div id="chart_div"></div>
    </div>
</body>
</html>

错误：

Answer 1

此时的文档和示例非常陈旧对于最近发布的loader.js，需要包含'corechart'包才能使图表正常工作。

见以下，工作示例......

// Load the Visualization API and the controls package.
google.charts.load('current', {'packages':['controls', 'corechart']});

// Set a callback to run when the Google Visualization API is loaded.
google.charts.setOnLoadCallback(drawDashboard);

// Callback that creates and populates a data table,
// instantiates a dashboard, a range slider and a pie chart,
// passes in the data and draws it.
function drawDashboard() {

  // Create our data table.
  var data = google.visualization.arrayToDataTable([
    ['Name', 'Donuts eaten'],
    ['Michael' , 5],
    ['Elisa', 7],
    ['Robert', 3],
    ['John', 2],
    ['Jessica', 6],
    ['Aaron', 1],
    ['Margareth', 8]
  ]);

  // Create a dashboard.
  var dashboard = new google.visualization.Dashboard(
      document.getElementById('dashboard_div'));

  // Create a range slider, passing some options
  var donutRangeSlider = new google.visualization.ControlWrapper({
    'controlType': 'NumberRangeFilter',
    'containerId': 'filter_div',
    'options': {
      'filterColumnLabel': 'Donuts eaten'
    }
  });

  // Create a pie chart, passing some options
  var pieChart = new google.visualization.ChartWrapper({
    'chartType': 'PieChart',
    'containerId': 'chart_div',
    'options': {
      'width': 300,
      'height': 300,
      'pieSliceText': 'value',
      'legend': 'right'
    }
  });

  // Establish dependencies, declaring that 'filter' drives 'pieChart',
  // so that the pie chart will only display entries that are let through
  // given the chosen slider range.
  dashboard.bind(donutRangeSlider, pieChart);

  // Draw the dashboard.
  dashboard.draw(data);
}

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<!--Div that will hold the dashboard-->
<div id="dashboard_div">
    <!--Divs that will hold each control and chart-->
    <div id="filter_div"></div>
    <div id="chart_div"></div>
</div>

谷歌图表仪表板加载失败

1 个答案: