Google chart redraw/scale on window resize

Question

How do I redraw/rescale a google linechart on window resize?

Answer 1

Using Tiago Castro's answer, I have implemented a line chart to show the demonstration.

google.load('visualization', '1', {
  packages: ['corechart', 'line']
});
google.setOnLoadCallback(drawBackgroundColor);

function drawBackgroundColor() {
  var data = new google.visualization.DataTable();
  data.addColumn('number', 'X');
  data.addColumn('number', 'Compute Time');
  data.addColumn('number', 'Compute Times');
  console.log("--");
  data.addRows([
    [0, 0, 0],
    [10, 10, 15],
    [20, 20, 65]
  ]);
  console.log(data);
  var options = {
    height: 350,
    legend: {
      position: 'bottom'
    },
    hAxis: {
      title: 'Nb Curves'
    },
    vAxis: {
      title: 'Time (ms)'
    },
    backgroundColor: '#f1f8e9'
  };

  function resize() {
    var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
    chart.draw(data, options);
  }
  window.onload = resize();
  window.onresize = resize;

}

<script src='https://www.google.com/jsapi'></script>
<div id="chart_div">

Answer 2

To redraw only when the window resize is completed and avoid multiple triggers, I think is better create an event:

//create trigger to resizeEnd event     
$(window).resize(function() {
    if(this.resizeTO) clearTimeout(this.resizeTO);
    this.resizeTO = setTimeout(function() {
        $(this).trigger('resizeEnd');
    }, 500);
});

//redraw graph when window resize is completed  
$(window).on('resizeEnd', function() {
    drawChart(data);
});

Answer 3

Since the window.resize event fires multiple times on each resize event, I believe that the best solution is to use smartresize.js and use smartdraw(). This limits the number of chart redraw’s per window.resize.

By using the provided js you can do it as simply as this:

// Instantiate and draw our user charts, passing in some options (as you probably were doing it)
var chart = new google.visualization.LineChart(document.getElementById('div_chart'));
chart.draw(data, options);

// And then:
$(window).smartresize(function () {
    chart.draw(data, options);
});

Answer 4

Redraw/rescale a Google linechart on window resize:

$(document).ready(function () {
    $(window).resize(function(){
        drawChart();
    });
});

Answer 5

I've been stuck on the same thing for days and I found out that adding an event works best.

window.addEventListener("resize", drawChart);

Just add this line after declaring your function and it will work fine.

Replace drawChart with the name of your function.

Answer 6

The original code by Google simply does this at the end:

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

Changing it with a little javascript you can scale it when the window resizes:

function resize () {
    var chart = new google.visualization.LineChart(document.getElementById('chart_div'));
    chart.draw(data, options);
}

window.onload = resize;
window.onresize = resize;