A Pen by Laura-Annabel Tombs on CodePen.
Created
May 26, 2023 16:13
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<head> | |
<style> body { margin: 0; } </style> | |
<script src="//unpkg.com/react@16/umd/react.production.min.js"></script> | |
<script src="//unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script> | |
<script src="//unpkg.com/babel-standalone"></script> | |
<script src="//unpkg.com/d3"></script> | |
<script src="//unpkg.com/react-globe.gl"></script> | |
<!--<script src="../../dist/react-globe.gl.js"></script>--> | |
</head> | |
<body> | |
<div id="globeViz"></div> | |
<script type="text/jsx"> | |
const { useState, useEffect, useMemo } = React; | |
const World = () => { | |
const [countries, setCountries] = useState({ features: []}); | |
const [hoverD, setHoverD] = useState(); | |
useEffect(() => { | |
// load data | |
fetch('https://raw.githubusercontent.com/vasturiano/globe.gl/master/example/datasets/ne_110m_admin_0_countries.geojson').then(res => res.json()).then(setCountries); | |
}, []); | |
const colorScale = d3.scaleSequentialSqrt(d3.interpolateYlOrRd); | |
// GDP per capita (avoiding countries with small pop) | |
const getVal = feat => feat.properties.GDP_MD_EST / Math.max(1e5, feat.properties.POP_EST); | |
const maxVal = useMemo( | |
() => Math.max(...countries.features.map(getVal)), | |
[countries] | |
); | |
colorScale.domain([0, maxVal]); | |
return <Globe | |
globeImageUrl="//unpkg.com/three-globe/example/img/earth-night.jpg" | |
polygonsData={countries.features} | |
polygonAltitude={d => d === hoverD ? 0.12 : 0.06} | |
polygonCapColor={d => d === hoverD ? 'steelblue' : colorScale(getVal(d))} | |
polygonSideColor={() => 'rgba(0, 100, 0, 0.15)'} | |
polygonStrokeColor={() => '#111'} | |
polygonLabel={({ properties: d }) => ` | |
<b>${d.ADMIN} (${d.ISO_A2}):</b> <br /> | |
GDP: <i>${d.GDP_MD_EST}</i> M$<br/> | |
Population: <i>${d.POP_EST}</i> | |
`} | |
onPolygonHover={setHoverD} | |
polygonsTransitionDuration={300} | |
/>; | |
}; | |
ReactDOM.render( | |
<World />, | |
document.getElementById('globeViz') | |
); | |
</script> | |
</body> |
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body { | |
height: 100vh; | |
width: 100vw; | |
margin: 0; | |
overflow: hidden; | |
} |
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