Variable radius pie

author(s): Grzegorz Blachliński

by oysteinmoseng

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/variable-pie.js"></script>
<button id="unfold">
  Click to unfold
</button>

<figure class="highcharts-figure">
    <div id="container"></div>
</figure>

CSS

#unfold {
  width: 100px;
  margin: 10px auto;
  display: block;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
}

#container {
	height: 500px;
}

.unfolded {
  transform: scale(1.3) skew(25deg, 25deg) translate(0, 100px);
  filter: hue-rotate(-40deg) grayscale(40%);
  background-color: #eee;
}

.highcharts-figure, .highcharts-data-table table {
    transition: all 2s;
    min-width: 320px;
    max-width: 700px;
    margin: 1em auto;
    border: 2px solid #444;
    border-radius: 10px;
    padding: 10px;
}

.highcharts-data-table table {
	font-family: Verdana, sans-serif;
	border-collapse: collapse;
	border: 1px solid #EBEBEB;
	margin: 10px auto;
	text-align: center;
	width: 100%;
	max-width: 500px;
}
.highcharts-data-table caption {
    padding: 1em 0;
    font-size: 1.2em;
    color: #555;
}
.highcharts-data-table th {
	font-weight: 600;
    padding: 0.5em;
}
.highcharts-data-table td, .highcharts-data-table th, .highcharts-data-table caption {
    padding: 0.5em;
}
.highcharts-data-table thead tr, .highcharts-data-table tr:nth-child(even) {
    background: #f8f8f8;
}
.highcharts-data-table tr:hover {
    background: #f1f7ff;
}

JavaScript

const chart = Highcharts.chart('container', {
    chart: {
        type: 'variablepie',
        backgroundColor: 'transparent'
    },
    title: {
        text: 'Countries compared by population density and total area.'
    },
    tooltip: {
        headerFormat: '',
        pointFormat: '<span style="color:{point.color}">\u25CF</span> <b> {point.name}</b><br/>' +
            'Area (square km): <b>{point.y}</b><br/>' +
            'Population density (people per square km): <b>{point.z}</b><br/>'
    },
    series: [{
        minPointSize: 10,
        innerSize: '20%',
        zMin: 0,
        name: 'countries',
        data: [{
            name: 'Spain',
            y: 505370,
            z: 92.9
        }, {
            name: 'France',
            y: 551500,
            z: 118.7
        }, {
            name: 'Poland',
            y: 312685,
            z: 124.6
        }, {
            name: 'Czech Republic',
            y: 78867,
            z: 137.5
        }, {
            name: 'Italy',
            y: 301340,
            z: 201.8
        }, {
            name: 'Switzerland',
            y: 41277,
            z: 214.5
        }, {
            name: 'Germany',
            y: 357022,
            z: 235.6
        }]
    }]
});

document.getElementById('unfold').onclick = () => {
	setTimeout(() => chart.update({
  	title: {
    	text: 'H E L P!'
    },
    plotOptions: {
    	series: {
      	dataLabels: {
        	format: 'help'
        }
      }
    }
  }), 800);
	chart.renderTo.parentNode.classList.add('unfolded');
  
};