(async () => {
const topology = await fetch(
'https://code.highcharts.com/mapdata/custom/world.topo.json'
).then(response => response.json());
function drawChart(data) {
return Highcharts.mapChart('container', {
chart: {
map: topology,
borderWidth: 1
},
colors: ['rgba(19,64,117,0.05)', 'rgba(19,64,117,0.2)', 'rgba(19,64,117,0.4)',
'rgba(19,64,117,0.5)', 'rgba(19,64,117,0.6)', 'rgba(19,64,117,0.8)', 'rgba(19,64,117,1)'],
title: {
text: 'Population density by country (/km²)'
},
mapNavigation: {
enabled: true
},
legend: {
title: {
text: 'Individuals per km²',
style: {
color: (
Highcharts.defaultOptions &&
Highcharts.defaultOptions.legend &&
Highcharts.defaultOptions.legend.title &&
Highcharts.defaultOptions.legend.title.style &&
Highcharts.defaultOptions.legend.title.style.color
) || 'black'
}
},
align: 'left',
verticalAlign: 'bottom',
floating: true,
layout: 'vertical',
valueDecimals: 0,
backgroundColor: (
Highcharts.defaultOptions &&
Highcharts.defaultOptions.legend &&
Highcharts.defaultOptions.legend.backgroundColor
) || 'rgba(255, 255, 255, 0.85)',
symbolRadius: 0,
symbolHeight: 14
},
colorAxis: {
dataClasses: [{
to: 3
}, {
from: 3,
to: 10
}, {
from: 10,
to: 30
}, {
from: 30,
to: 100
}, {
from: 100,
to: 300
}, {
from: 300,
to: 1000
}, {
from: 1000
}]
},
series: [{
data: data,
joinBy: ['iso-a2', 'code'],
animation: true,
name: 'Population density',
states: {
hover: {
color: '#a4edba'
}
},
tooltip: {
valueSuffix: '/km²'
},
shadow: false
}]
});
}
Highcharts.data({
googleAPIKey: 'AIzaSyCQ0Jh8OFRShXam8adBbBcctlbeeA-qJOk',
googleSpreadsheetKey: '1gXzu9TYT3UvDMcoxj_kS7PUXMmC1MNVSfewccOs2dkA',
parsed: function (columns) {
const data = columns[0].slice(1).map((code, i) => ({
code: code.toUpperCase(),
value: parseFloat(columns[2][i + 1]),
name: columns[1][i + 1]
}));
drawChart(data);
},
error: function () {
const chart = drawChart();
chart.showLoading(
'<i class="icon-frown icon-large"></i> ' +
'Error loading data from Google Spreadsheets'
);
}
});
})();