three-globe
Version:
Globe data visualization as a ThreeJS reusable 3D object
81 lines (69 loc) • 2.74 kB
HTML
<head>
<style> body { margin: 0; } </style>
<script type="importmap">{ "imports": {
"three": "https://esm.sh/three",
"three/": "https://esm.sh/three/"
}}</script>
<!-- <script type="module"> import * as THREE from 'three'; window.THREE = THREE;</script>-->
<!-- <script src="../../dist/three-globe.js" defer></script>-->
</head>
<body>
<div id="globeViz"></div>
<script type="module">
import ThreeGlobe from 'https://esm.sh/three-globe?external=three';
import * as THREE from 'https://esm.sh/three';
import { TrackballControls } from 'three/examples/jsm/controls/TrackballControls.js?external=three';
// Gen random data
const N = 300;
const gData = [...Array(N).keys()].map(() => ({
lat: (Math.random() - 0.5) * 180,
lng: (Math.random() - 0.5) * 360,
alt: Math.random(),
radius: Math.random() * 5,
color: ['red', 'white', 'blue', 'green'][Math.round(Math.random() * 3)]
}));
const Globe = new ThreeGlobe()
.globeImageUrl('//cdn.jsdelivr.net/npm/three-globe/example/img/earth-blue-marble.jpg')
.bumpImageUrl('//cdn.jsdelivr.net/npm/three-globe/example/img/earth-topology.png')
.customLayerData(gData)
.customThreeObject(d => new THREE.Mesh(
new THREE.SphereGeometry(d.radius),
new THREE.MeshLambertMaterial({ color: d.color })
))
.customThreeObjectUpdate((obj, d) => {
Object.assign(obj.position, Globe.getCoords(d.lat, d.lng, d.alt));
});
(function moveSpheres() {
gData.forEach(d => d.lat += 0.2);
Globe.customLayerData(Globe.customLayerData());
requestAnimationFrame(moveSpheres);
})();
// Setup renderer
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setPixelRatio(window.devicePixelRatio);
document.getElementById('globeViz').appendChild(renderer.domElement);
// Setup scene
const scene = new THREE.Scene();
scene.add(Globe);
scene.add(new THREE.AmbientLight(0xcccccc, Math.PI));
scene.add(new THREE.DirectionalLight(0xffffff, 0.6 * Math.PI));
// Setup camera
const camera = new THREE.PerspectiveCamera();
camera.aspect = window.innerWidth/window.innerHeight;
camera.updateProjectionMatrix();
camera.position.z = 500;
// Add camera controls
const tbControls = new TrackballControls(camera, renderer.domElement);
tbControls.minDistance = 101;
tbControls.rotateSpeed = 5;
tbControls.zoomSpeed = 0.8;
// Kick-off renderer
(function animate() { // IIFE
// Frame cycle
tbControls.update();
renderer.render(scene, camera);
requestAnimationFrame(animate);
})();
</script>
</body>