Question

我在轮播上添加了图表，问题是图表不显示带有数字的y轴，它仅在负载下显示，在幻灯片更改时它不显示，我尝试更改颜色，减小宽度但根本不显示。

HTML完整代码：

<!DOCTYPE html>
<html lang="en">
  <head>
    <style>
      .carousel-indicators li {
        background-color: #BFC9CA ;
      }
      .carousel-indicators .active {
        background-color: #BFC9CA ;
      }
      h3
      {
      background-color: gold ;
      }
      .carousel-inner {
        width: 100%;
        max-height: 500px ;
    }
    .carousel-caption {
    position: relative;
    left: 0;
    top: 0;
}
    </style>
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" />
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
    <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: ['corechart'] });</script>
    <script language='JavaScript'>function drawChart(PassCount, FailCount, DivID) { var data = google.visualization.arrayToDataTable([['Status', 'Outcome', { role: 'style' }], ['Passed', PassCount, '#8BC34A'], ['Failed', FailCount, '#ff4c4c']]); var groupData = google.visualization.data.group(data, [{ column: 0, modifier: function () { return 'total' }, type: 'string' }], [{ column: 1, aggregation: google.visualization.data.sum, type: 'number' }]); var formatPercent = new google.visualization.NumberFormat({ pattern: '#,##0.0%' }); var formatShort = new google.visualization.NumberFormat({ pattern: 'short' }); var view = new google.visualization.DataView(data); view.setColumns([0, 1, 2, { calc: function (dt, row) { var amount = formatShort.formatValue(dt.getValue(row, 1)); var percent = formatPercent.formatValue(dt.getValue(row, 1) / groupData.getValue(0, 1)); return amount + ' (' + percent + ')'; }, type: 'string', role: 'annotation' }]); var options = { 'legend': 'none', tooltip: { trigger: 'none' }, 'width': 650, 'height': 400, animation: { duration: 1500, startup: true } }; var chart = new google.visualization.ColumnChart(document.getElementById(DivID)); chart.draw(view, options); } google.charts.setOnLoadCallback(function () { drawChart(70, 5, 'GoogleColChart_0'); }); google.charts.setOnLoadCallback(function () { drawChart(80, 10, 'GoogleColChart_1'); }); google.charts.setOnLoadCallback(function () { drawChart(90, 15, 'GoogleColChart_2'); });</script>
    <link rel='icon' type='Icon.ico' href='Icon.ico' />
  </head>
  <body>
    <div class="container">
      <h2>Carousel Example</h2>
      <div id="myCarousel" class="carousel slide" data-ride="carousel">
        <!-- Indicators -->
        <ol class="carousel-indicators">
          <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
          <li data-target="#myCarousel" data-slide-to="1"></li>
          <li data-target="#myCarousel" data-slide-to="2"></li>
        </ol>

        <!-- Wrapper for slides -->
        <div class="carousel-inner">
          <div align="center" class="item active">
            <div id='GoogleColChart_0' style='width:800; height:500;border-style:groove;border-width: 1px;'>
              <script type='text/javascript'>drawChart(70, 5, 'GoogleColChart_0');</script>
            </div>
          </div>
          <div align="center" class="item">
            <div id='GoogleColChart_1' style='width:800; height:500;border-style:groove;border-width: 1px;'>
              <script type='text/javascript'>drawChart(80, 10, 'GoogleColChart_1');</script>
            </div>
          </div>
          <div align="center" class="item">
            <div id='GoogleColChart_2' style='width:800; height:500;border-style:groove;border-width: 1px;'>
              <script type='text/javascript'>drawChart(90, 15, 'GoogleColChart_2');</script>
            </div>
          </div>
        </div>

        <!-- Left and right controls -->
        <a class="left carousel-control" href="#myCarousel" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left"></span>
          <span class="sr-only">Previous</span>
        </a>
        <a class="right carousel-control" href="#myCarousel" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right"></span>
          <span class="sr-only">Next</span>
        </a>
      </div>
    </div>
  </body>
</html>

即使更改幻灯片，图表也应显示y轴值。

Answer 1

无法在隐藏的容器中绘制图表。
图表无法正确计算所有图表元素的位置。
需要等到图表显示后才能首次绘制...

首先，仅需在页面首次显示时绘制第一张图表。
删除以下几行（假设默认情况下首先显示GoogleColChart_0）...

google.charts.setOnLoadCallback(function () { drawChart(80, 10, 'GoogleColChart_1'); });
google.charts.setOnLoadCallback(function () { drawChart(90, 15, 'GoogleColChart_2'); });

接下来，删除图表<script>元素内的<div>标签。
并将通过/失败计数添加为数据属性。

<div data-pass="70" data-fail="5" id='GoogleColChart_0' style='width:800; height:500;border-style:groove;border-width: 1px;'></div>

添加新的<script>标签作为正文</body>末尾之前的最后一个标签，
收听轮播的 slid 事件。
当 slid 事件触发时，绘制显示的图表，
传递数据属性中的值...

  $('#myCarousel').on('slid.bs.carousel', function (sender) {
    // draw chart that is shown
    var container = $(sender.relatedTarget).find('div');
    drawChart(container.data('pass'), container.data('fail'), container.prop('id'));
  });

请参阅以下工作片段...

<!DOCTYPE html>
<html lang="en">
  <head>
    <style>
      .carousel-indicators li {
        background-color: #BFC9CA ;
      }
      .carousel-indicators .active {
        background-color: #BFC9CA ;
      }
      h3
      {
      background-color: gold ;
      }
      .carousel-inner {
        width: 100%;
        max-height: 500px ;
    }
    .carousel-caption {
    position: relative;
    left: 0;
    top: 0;
}
    </style>
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css" />
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
    <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: ['corechart'] });</script>
    <script language='JavaScript'>function drawChart(PassCount, FailCount, DivID) { var data = google.visualization.arrayToDataTable([['Status', 'Outcome', { role: 'style' }], ['Passed', PassCount, '#8BC34A'], ['Failed', FailCount, '#ff4c4c']]); var groupData = google.visualization.data.group(data, [{ column: 0, modifier: function () { return 'total' }, type: 'string' }], [{ column: 1, aggregation: google.visualization.data.sum, type: 'number' }]); var formatPercent = new google.visualization.NumberFormat({ pattern: '#,##0.0%' }); var formatShort = new google.visualization.NumberFormat({ pattern: 'short' }); var view = new google.visualization.DataView(data); view.setColumns([0, 1, 2, { calc: function (dt, row) { var amount = formatShort.formatValue(dt.getValue(row, 1)); var percent = formatPercent.formatValue(dt.getValue(row, 1) / groupData.getValue(0, 1)); return amount + ' (' + percent + ')'; }, type: 'string', role: 'annotation' }]); var options = { 'legend': 'none', tooltip: { trigger: 'none' }, 'width': 650, 'height': 400, animation: { duration: 1500, startup: true } }; var chart = new google.visualization.ColumnChart(document.getElementById(DivID)); chart.draw(view, options); } google.charts.setOnLoadCallback(function () { drawChart(70, 5, 'GoogleColChart_0'); });</script>
    <link rel='icon' type='Icon.ico' href='Icon.ico' />
  </head>
  <body>
    <div class="container">
      <h2>Carousel Example</h2>
      <div id="myCarousel" class="carousel slide" data-ride="carousel">
        <!-- Indicators -->
        <ol class="carousel-indicators">
          <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
          <li data-target="#myCarousel" data-slide-to="1"></li>
          <li data-target="#myCarousel" data-slide-to="2"></li>
        </ol>

        <!-- Wrapper for slides -->
        <div class="carousel-inner">
          <div align="center" class="item active">
            <div data-pass="70" data-fail="5" id='GoogleColChart_0' style='width:800; height:500;border-style:groove;border-width: 1px;'></div>
          </div>
          <div align="center" class="item">
            <div data-pass="80" data-fail="10" id='GoogleColChart_1' style='width:800; height:500;border-style:groove;border-width: 1px;'></div>
          </div>
          <div align="center" class="item">
            <div data-pass="90" data-fail="15" id='GoogleColChart_2' style='width:800; height:500;border-style:groove;border-width: 1px;'></div>
          </div>
        </div>

        <!-- Left and right controls -->
        <a class="left carousel-control" href="#myCarousel" data-slide="prev">
          <span class="glyphicon glyphicon-chevron-left"></span>
          <span class="sr-only">Previous</span>
        </a>
        <a class="right carousel-control" href="#myCarousel" data-slide="next">
          <span class="glyphicon glyphicon-chevron-right"></span>
          <span class="sr-only">Next</span>
        </a>
      </div>
    </div>

    <script>
      $('#myCarousel').on('slid.bs.carousel', function (sender) {
        // draw chart that is shown
        var container = $(sender.relatedTarget).find('div');
        drawChart(container.data('pass'), container.data('fail'), container.prop('id'));
      });
    </script>
  </body>
</html>

轮播：Y轴，数字不显示在幻灯片上

1 个答案: