javascript - Google chart value going outside from pie chart in Bootstrap modal

Question

I'm using Google chart to visualize my data and i'm using 3d pie chart to show data in bootstrap modal but the value is going outside from the pie chart i searched on google but get noting on this issue

<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
      </div>
      <div class="modal-body">
        <div class="chart" id="chart_div"></div>
      </div>
      <div class="modal-footer">
      </div>
    </div>
  </div>
</div>

my jsfiddle :- https://jsfiddle.net/L0pt229a/

Answer 1

the problem with the labels is due to drawing the chart while its container is hidden

instead of drawing the chart when google loads,
wait until the modal is shown

on the modal, listen for --> 'shown.bs.modal'
then draw the chart, see following working snippet...

google.charts.load('current', {
  packages:['corechart']
}).then(function () {
  $("#myModal").on('shown.bs.modal', function () {
    var data = google.visualization.arrayToDataTable([
      ['Task', 'Hours per Day'],
      ['Work',     11],
      ['Eat',      2],
      ['Commute',  2],
      ['Watch TV', 2],
      ['Sleep',    7]
    ]);

    var options = {
      title: 'My Daily Activities',
      is3D: true
    };

    var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
    chart.draw(data, options);
  });
});

.button {
  left: 50%;
  margin: 0;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.chart {
  align-content: center;
  display: flex;
  justify-content: center;
}

.modal {
  text-align: center;
}

@media screen and (min-width: 768px) {
  .modal:before {
    content: " ";
    display: inline-block;
    height: 100%;
    vertical-align: middle;
  }
}

.modal-dialog {
  display: inline-block;
  min-height: 230px;
  min-width: 430px;
  text-align: center;
  vertical-align: middle;
}

.modal-footer {
  color: #00b5e6;
  font-size: 25px;
  text-align: center;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://www.gstatic.com/charts/loader.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<!-- Chart -->
<div class="button">
  <button class="btn btn-primary" data-toggle="modal" data-target="#myModal" class="myModal">Chart</button>
</div>

<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal">&times;</button>
      </div>
      <div class="modal-body">
        <div class="chart" id="chart_div"></div>
      </div>
      <div class="modal-footer">
      </div>
    </div>
  </div>
</div>