Pen Settings

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
                  <div id="header">
      <h1>Health and Income of Nations</h1>
    </div>

    <div id="chart-wrapper">
      <canvas id="myChart"></canvas>
    </div>

    <div id="year-slider-wrapper">
      <label>1800</label>
      <input id="year-slider" type="range" min="1800" max="2018" style="width: 800px;" value="1800" />
      <label>2018</label>
    </div>

    <div id="footer">
      <p>A <a href="https://www.chartjs.org/">Chart.js</a> reproduction of Gapminder's <a href="https://www.gapminder.org/tools/">interactive</a> comparing life expectancy and GDP. Built by <a href="https://createwithdata.com">Peter Cook</a>.</p>
    </div>

            
          
!
            
              body {
  font-family: Roboto, sans-serif;
  color: #333;
}

a {
  color: #777;
}

#chart-wrapper {
  height: 600px;
}

#header {
  text-align: center;
  margin: 20px 0;
  font-family: Aleo, serif;
}

#year-slider-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#year-slider-wrapper label {
  font-size: 24px;
  padding: 0 10px;
}

#footer {
  margin: 30px;
  font-size: 14px;
  text-align: center;
  color: #aaa;
}

/* http://danielstern.ca/range.css/#/ */
input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  margin: 7.25px 0;
}
input[type=range]:focus {
  outline: none;
}
input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 5.5px;
  cursor: pointer;
  box-shadow: 0px 0px 0px #000000, 0px 0px 0px #0d0d0d;
  background: rgba(220, 220, 220, 0.78);
  border-radius: 3.9px;
  border: 0px solid #010101;
}
input[type=range]::-webkit-slider-thumb {
  box-shadow: 0px 0px 3.6px #000031, 0px 0px 0px #00004b;
  border: 0px solid #b4b4b4;
  height: 20px;
  width: 20px;
  border-radius: 20px;
  background: #c8c8c8;
  cursor: pointer;
  -webkit-appearance: none;
  margin-top: -7.25px;
}
input[type=range]:focus::-webkit-slider-runnable-track {
  background: rgba(223, 223, 223, 0.78);
}
input[type=range]::-moz-range-track {
  width: 100%;
  height: 5.5px;
  cursor: pointer;
  box-shadow: 0px 0px 0px #000000, 0px 0px 0px #0d0d0d;
  background: rgba(220, 220, 220, 0.78);
  border-radius: 3.9px;
  border: 0px solid #010101;
}
input[type=range]::-moz-range-thumb {
  box-shadow: 0px 0px 3.6px #000031, 0px 0px 0px #00004b;
  border: 0px solid #b4b4b4;
  height: 20px;
  width: 20px;
  border-radius: 20px;
  background: #c8c8c8;
  cursor: pointer;
}
input[type=range]::-ms-track {
  width: 100%;
  height: 5.5px;
  cursor: pointer;
  background: transparent;
  border-color: transparent;
  color: transparent;
}
input[type=range]::-ms-fill-lower {
  background: rgba(217, 217, 217, 0.78);
  border: 0px solid #010101;
  border-radius: 7.8px;
  box-shadow: 0px 0px 0px #000000, 0px 0px 0px #0d0d0d;
}
input[type=range]::-ms-fill-upper {
  background: rgba(220, 220, 220, 0.78);
  border: 0px solid #010101;
  border-radius: 7.8px;
  box-shadow: 0px 0px 0px #000000, 0px 0px 0px #0d0d0d;
}
input[type=range]::-ms-thumb {
  box-shadow: 0px 0px 3.6px #000031, 0px 0px 0px #00004b;
  border: 0px solid #b4b4b4;
  height: 20px;
  width: 20px;
  border-radius: 20px;
  background: #c8c8c8;
  cursor: pointer;
  height: 5.5px;
}
input[type=range]:focus::-ms-fill-lower {
  background: rgba(220, 220, 220, 0.78);
}
input[type=range]:focus::-ms-fill-upper {
  background: rgba(223, 223, 223, 0.78);
}

            
          
!
            
              var countries, myChart;

var ctx = document.getElementById("myChart").getContext('2d');

var rScale = d3.scaleSqrt().domain([0, 5e8]);
var incomeFormat = d3.format(',');

var regionColor = {
	americas: 'rgb(127, 235, 0)',
	europe: 'rgb(255, 231, 0)',
	africa: 'rgb(0, 213, 233)',
	asia: 'rgb(255, 88, 114)'
};

Chart.defaults.global.defaultFontFamily = "'Open Sans', sans-serif";
Chart.defaults.global.defaultFontColor = '#333';
Chart.defaults.global.animation.duration = 0;

var startYear = 1800, endYear = 2018, chosenYear = 1800;


var yearLabelPlugin = {
	beforeDraw() {
		if(!myChart) return;

		myChart.ctx.save();
		var geom = myChart.chartArea;
		var w = geom.right - geom.left;
		var h = geom.bottom - geom.top;
		var fontSize = Math.min(w * 0.4, 400);

		// Draw background year label
		myChart.ctx.textAlign = 'center';
		myChart.ctx.textBaseline = 'middle';
		myChart.ctx.fillStyle= '#eee';
		myChart.ctx.font = fontSize + 'px Aleo';
		myChart.ctx.fillText(chosenYear, geom.left + 0.5 * w, geom.top + 0.5 * h);
		myChart.ctx.restore();
	}
}

function initChart() {
	myChart = new Chart(ctx, {
	  type: 'bubble',
	  options: {
      maintainAspectRatio: false,
			legend: {
				display: false,
			},
	    scales: {
	      yAxes: [{
					ticks: {
						min: 10,
						max: 90
					},
					scaleLabel: {
						display: true,
						labelString: 'Life expectancy (yrs)',
						fontSize: 16,
						lineHeight: 2
					}
	      }],
	      xAxes: [{
					type: 'logarithmic',
					ticks: {
						min: 300,
						max: 2e5,
						callback: function(value) {
							var ticks = [300, 500, 1000, 5000, 10000, 50000, 100000, 200000];
							return ticks.indexOf(value) === -1 ? '' : incomeFormat(value);
						}
					},
					scaleLabel: {
						display: true,
						labelString: 'GDP/capita, PPP$ inflation-adjusted',
						fontSize: 16,
						lineHeight: 2
					}
	      }]
	    },
			tooltips: {
				xPadding: 10,
				yPadding: 10,
				titleFontSize: 20,
				titleMarginBottom: 10,
				bodyFontSize: 14,
				callbacks: {
					title: function(tooltipItem, data) {
						var d = data.datasets[tooltipItem[0].datasetIndex];
						return d.label;
					},
					label: function(tooltipItem, data) {
						return 'GDP/capita $' + incomeFormat(tooltipItem.xLabel) + ' Life expectancy: ' + tooltipItem.yLabel.toFixed(1) + 'yrs';
					}
				}
			}
	  },
    plugins: [yearLabelPlugin]
	});
}

function getDataset() {
	var i = chosenYear - startYear;

	// Get the data for chosenYear
	var data = countries.map(function(d) {
		return {
			country: d.country,
			region: d.region,
			gdp: +d.gdp[i],
			exp: +d.lifeExpectancy[i],
			pop: +d.population[i],
		};
	});

	// Filter out nations w/out data
	data = data.filter(function(d) {return d.gdp && d.exp && d.pop;});

	// Sort by population size so that small circles are in front
	data = _.sortBy(data, function(d) {return -d.pop;});

	// Get data array (in structure required by Chart.js)
	var points = data.map(function(d) {
		return {
			x: d.gdp,
			y: d.exp,
			r: rScale(d.pop)
		};
	});

	// Get color array
	var colors = data.map(function(d) {return regionColor[d.region];});

	// Get label array
	var labels = data.map(function(d) {return d.label;});

	// Create dataset
	var dataset = {
		data: points,
		backgroundColor: colors,
		borderColor: '#777',
		myLabels: labels
	};

	return dataset;
}

function update() {
	if(!countries) return;

	var rMax = (myChart.chartArea.bottom - myChart.chartArea.top) / 20;
	rScale.range([0, rMax]);

	myChart.data = {
    datasets: [getDataset()]
  };
	myChart.update();
}

d3.json('https://s3-us-west-2.amazonaws.com/s.cdpn.io/2814973/gapminder.json')
  .then(function(json) {
	countries = json;

	initChart();
	update();
});

document.getElementById('year-slider').addEventListener('input', function(e) {
	chosenYear = e.target.value;
	update();
});

// Call update on resize to ensure rScale is up to date
window.addEventListener('resize', update);

// Call update when fonts have loaded
WebFont.load({
  google: {
    families: ['Open Sans', 'Aleo']
  },
	active: update
});

            
          
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.

Console