【问题标题】:How to add two Google charts on the one page?如何在一页上添加两个谷歌图表?
【发布时间】:2012-04-10 22:45:00
【问题描述】:

我做了什么

我已将 Google 图表添加到我的页面顶部。这将返回图表的图像。

我需要做什么

我只需要在同一页面上添加第二个图表。

问题

第二个图表的代码被忽略。我主要怀疑这是因为我错误地组合了每个图表的代码。

代码

第一个图表(线):

    <!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">

  // Load the Visualization API and the piechart package.
  google.load('visualization', '1.0', {'packages':['corechart']});

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

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

    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Month');
    data.addColumn('number', 'Apples');
    data.addColumn('number', 'Oranges');
    data.addRows([
      ['Oct 11', 20, 0],
      ['Nov 11', 0, 0],
      ['Dec 12',  0, 20],
      ['Jan 12', 0, 10],
      ['Feb 12', 0, 10],
      ['March 12', 10, 10]
    ]);

    // Set chart options
    var options = {'width':960,
                   'height':300};

    // Instantiate and draw our chart, passing in some options.
    var chart = new google.visualization.LineChart(document.getElementById('line_chart'));
    chart.draw(data, options);
  }

</script>

第二张图表(饼图):

    <!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">

  // Load the Visualization API and the piechart package.
  google.load('visualization', '1.0', {'packages':['corechart']});

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

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

    // Create the data table.
    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]
    ]);

    // Set chart options
    var options = {'title':'How Much Pizza I Ate Last Night',
                   'width':400,
                   'height':300};

    // Instantiate and draw our chart, passing in some options.
    var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
    chart.draw(data, options);
  }
</script>

每个图表都在正文中使用具有唯一 ID 的容器 div 调用:

<div id="chart_div"></div>

我的问题

如何将这两个代码块拼接在一起?我尝试复制 drawChart() 并指定唯一的函数名称和变量,但无济于事。

【问题讨论】:

  • 您应该将您的解决方案作为答案发布,而不是对您的问题进行编辑。回答您自己的问题非常好。
  • @Kevin Reid - 我重新发布了解决方案作为答案。我只能等待两天才能选择我自己的答案作为接受的答案。感谢您的提示。
  • 我遇到了这个问题,发现这是因为我的 div 元素写成
    而不是显式的开始/结束元素
    。如果其他人在渲染多个图表时遇到问题,请检查。

标签: javascript charts


【解决方案1】:

解决方案

我现在有一个可行的解决方案。它涉及辨别示例代码的哪些部分要复制,哪些部分不应该复制(正如 Oofpez 所建议的那样)。每个图表的数据、选项和图表变量都在 ONE drawChart() 函数中定义。

这是一个工作示例(只需复制并粘贴到 HTML 文档中):

...此示例进一步演示了如何组合不同的图表类型,即饼图和折线图...

<html>
      <head>
        <!--Load the AJAX API-->
        <script type="text/javascript" src="https://www.google.com/jsapi"></script>
        <script type="text/javascript">

          // Load the Visualization API and the piechart package.
          google.load('visualization', '1.0', {'packages':['corechart']});

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

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

            // Create the data table.
            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]
            ]);
            // Create the data table.
            var data2 = new google.visualization.DataTable();
            data2.addColumn('string', 'Topping');
            data2.addColumn('number', 'Slices');
            data2.addRows([
              ['Mushrooms', 3],
              ['Onions', 1],
              ['Olives', 15],
              ['Zucchini', 1],
              ['Pepperoni', 2]
            ]);

            var data3 = new google.visualization.DataTable();
            data3.addColumn('string', 'Year');
            data3.addColumn('number', 'Sales');
            data3.addColumn('number', 'Expenses');
            data3.addRows([
              ['2004', 1000, 400],
              ['2005', 1170, 460],
              ['2006',  860, 580],
              ['2007', 1030, 540]
            ]);

            // Set chart options
            var options = {'title':'How Much Pizza I Ate Last Night',
                           'width':400,
                           'height':300};
            // Set chart options
            var options2 = {'title':'How Much Pizza You Ate Last Night',
                           'width':400,
                           'height':300};
            // Set chart options
            var options3 = {'title':'Line chart',
                           'width':400,
                           'height':300};

            // Instantiate and draw our chart, passing in some options.
            var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
            chart.draw(data, options);
            var chart2 = new google.visualization.PieChart(document.getElementById('chart_div2'));
            chart2.draw(data2, options2);
            var chart3 = new google.visualization.LineChart(document.getElementById('chart_div3'));
            chart3.draw(data3, options3);

          }
        </script>
      </head>

      <body>
        <!--Divs that will hold the charts-->
        <div id="chart_div"></div>
        <div id="chart_div2"></div>
        <div id="chart_div3"></div>
      </body>
    </html>

【讨论】:

【解决方案2】:

基本上你可以包装函数drawChart 来传递参数:

function drawChart(chartType, containerID, dataArray, options)

call google.setOnLoadCallback(function() {
    drawChart('barChart', 'div_id_1', test_array, null);
}); 

你想渲染图形的次数:

var test_array = [
    ['Name', 'Count-A', 'Count-B'],
    ['Test-A', 4, 3],
    ['Test-B', 1, 2],
    ['Test-C', 3, 4],
    ['Test-D', 2, 0],
    ['Test-E', 2, 5]
];

google.load("visualization", "1", {packages: ["corechart",'table']});

google.setOnLoadCallback(function() {
    drawChart('barChart', 'div_id_1', test_array, null);
});

google.setOnLoadCallback(function() {
    drawChart('columnChart', 'div_id_2', test_array, null);
});


function drawChart(chartType, containerID, dataArray, options) {
    var data = google.visualization.arrayToDataTable(dataArray);
    var containerDiv = document.getElementById(containerID);
    var chart = false;

    if (chartType.toUpperCase() == 'BARCHART') {
        chart = new google.visualization.BarChart(containerDiv);
    }
    else if (chartType.toUpperCase() == 'COLUMNCHART') {
        chart = new google.visualization.ColumnChart(containerDiv);
    }
    else if (chartType.toUpperCase() == 'PIECHART') {
        chart = new google.visualization.PieChart(containerDiv);
    }
    else if (chartType.toUpperCase() == 'TABLECHART')
    {
        chart = new google.visualization.Table(containerDiv);
    }

    if (chart == false) {
        return false;
    }

    chart.draw(data, options);
}

【讨论】:

  • 这是我选择的路线,但发现它不适用于新的材料线图。适用于经典。使用材料,每次刷新时显示的图表都不同:)
  • 一个 JSfiddle 的例子会有很长的路要走。
【解决方案3】:

基于@Dominor 的回答,但是如果您要从任意位置注册图表,只需构建一个在回调函数中执行的函数堆栈,如下所示:

google.setOnLoadCallback(drawChart);

// Callback that creates and populates a data table,
// instantiates the pie chart, passes in the data and
// draws it.
googleChartStack = [];

function drawChart() {
    for (var i = googleChartStack.length - 1; i >= 0; i--) {
        googleChartStack[i]();
    }
}

然后,您可以在模板中的其他位置推送到此堆栈。在我的示例中,我正在遍历一些模板 sn-p。

<script>
  googleChartStack.push(function() {
    var data = google.visualization.arrayToDataTable([
      ['A', 'B'],
      ['A', 1],
      ['B', 2]
    ]);

    var options = {
      title: 'none',
      legend: 'none'
    };

    var chart = new google.visualization.PieChart(document.getElementById("relevant-id"));
    chart.draw(data, options);          
  })
</script>

【讨论】:

  • 这与我最终做的很接近。我来这里是为了发布我的作品,但我会支持你的作品,因为它体现了同样的精神。构建一堆谷歌图表,然后一次性加载它们。
【解决方案4】:

Google Charts 的生产版本存在一个计时错误,该错误会阻止在同一页面上加载多个图表。

Google 在最近的版本中修复了此问题,可用于冻结版本加载器:https://developers.google.com/chart/interactive/docs/library_loading_enhancements#frozen-versions

相关话题:https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/google-visualization-api/KulpuT418cg/yZieM8buCQAJ

【讨论】:

  • 我知道这是一个谷歌错误。这为我节省了几个小时。
【解决方案5】:

也许当你指定时

google.setOnLoadCallback(drawChart);

第一次覆盖回调事件两次?

只是猜测...

【讨论】:

  • 谢谢。它是。我想出了如何避免必须使用该功能两次。有关解决方案的完整说明,请参阅我的原始帖子。
【解决方案6】:

在上面的答案包中只添加了饼图..为了在同一页面上打印饼图和折线图,我们还必须包括线包: google.load('visualization', '1.0', {'packages':['corechart','line']});

完整代码:-

      // Load the Visualization API and the piechart package.
      google.load('visualization', '1.0', {'packages':['corechart','line']});

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

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

        // Create the data table.
        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]
        ]);
        // Create the data table.
        var data2 = new google.visualization.DataTable();
        data2.addColumn('string', 'Topping');
        data2.addColumn('number', 'Slices');
        data2.addRows([
          ['Mushrooms', 3],
          ['Onions', 1],
          ['Olives', 15],
          ['Zucchini', 1],
          ['Pepperoni', 2]
        ]);

        var data3 = new google.visualization.DataTable();
        data3.addColumn('string', 'Year');
        data3.addColumn('number', 'Sales');
        data3.addColumn('number', 'Expenses');
        data3.addRows([
          ['2004', 1000, 400],
          ['2005', 1170, 460],
          ['2006',  860, 580],
          ['2007', 1030, 540]
        ]);

        // Set chart options
        var options = {'title':'How Much Pizza I Ate Last Night',
                       'width':400,
                       'height':300};
        // Set chart options
        var options2 = {'title':'How Much Pizza You Ate Last Night',
                       'width':400,
                       'height':300};
        // Set chart options
        var options3 = {'title':'Line chart',
                       'width':400,
                       'height':300};

        // Instantiate and draw our chart, passing in some options.
        var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
        chart.draw(data, options);
        var chart2 = new google.visualization.PieChart(document.getElementById('chart_div2'));
        chart2.draw(data2, options2);
        var chart3 = new google.visualization.LineChart(document.getElementById('chart_div3'));
        chart3.draw(data3, options3);

      }
    </script>
  </head>

  <body>
    <!--Divs that will hold the charts-->
    <div id="chart_div"></div>
    <div id="chart_div2"></div>
    <div id="chart_div3"></div>
  </body>
</html>

【讨论】:

    【解决方案7】:

    您要做的是为每个图表设置一个函数。然后做

    google.setOnLoadCallback(initialize);
    

    并初始化调用每个函数来创建图表。这样比在一个函数中绘制多个图表要干净得多。它也将有助于调试。

    【讨论】:

      【解决方案8】:
      <script type="text/javascript" src="https://www.google.com/jsapi"></script>
      <script type="text/javascript">
        google.load("visualization", "1.1", {packages:["bar"]});
        google.setOnLoadCallback(drawChart);
        function drawChart() {
          var data = google.visualization.arrayToDataTable([
            ['Day/Month', 'Sales', 'Goal'],
            ['Daily', 33549.17,47328.04],
            ['M-T-D', 96114.18,141984.12]
          ]);
      
      
          var data1 = google.visualization.arrayToDataTable([
            ['Day/Month', 'Bookings', 'Goal'],
      
            ['Daily', 37991.21,47659.09],
      
            ['M-T-D', 95610.47,142977.27]
      
          ]);
         var options = {
        colors: ['#e0aa0e', '#ecbb6e','green'],
            width: 800,
            chart: {
              title: 'Test Company Sales',
              subtitle: 'Sales vs Goal',
            }
          };
          var options1 = {
        colors: ['#e0440e', '#ec8f6e','green'],
            width: 800,
            chart: {
              title: 'Test Company Bookings',
              subtitle: 'Bookings',
            }
          };
      
          var chart = new google.charts.Bar(document.getElementById('sales'));
          chart.draw(data, options);
          var chart2 = new google.charts.Bar(document.getElementById('bookings'));
      
          chart2.draw(data1, options1);
        }
      </script>
      
      
      
      
      
        <div style="display: table; width: 100%;">
            <div style="display: table-row">
                 <div id="sales" style="width: 900px; height: 500px; display: table-cell;"></div>
                <div id="bookings" style="width: 900px; height: 500px; display: table-cell;"></div>
           </div>
      </div>
      

      【讨论】:

      • 我无法用上面的代码同时渲染两个图。
      【解决方案9】:

      step_1.(将 id curve_chart 更改为其他名称(例如 ajay))

      <body>
      <div id="ajay" style="width: 900px; height: 500px"></div>
      

      step_2.(在脚本元素中将此 id 分配给您的图表)..

          var chart = new google.visualization.LineChart(document.getElementById('ajay'));
      
          chart.draw(data, options);
        }
      </script>
      

      【讨论】:

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