three-globe
Version:
Globe data visualization as a ThreeJS reusable 3D object
87 lines (75 loc) • 3.16 kB
HTML
<head>
<style> body { margin: 0; } </style>
<script src="//unpkg.com/three"></script>
<script src="//unpkg.com/three-globe"></script>
<!-- <script src="../../dist/three-globe.js"></script>-->
</head>
<body>
<div id="globeViz"></div>
<script type="importmap">{ "imports": { "three": "https://unpkg.com/three/build/three.module.js" }}</script>
<script type="module">
import { TrackballControls } from '//unpkg.com/three/examples/jsm/controls/TrackballControls.js';
import { CSS2DRenderer } from '//unpkg.com/three/examples/jsm/renderers/CSS2DRenderer.js';
Object.assign(THREE , { TrackballControls, CSS2DRenderer });
const markerSvg = `<svg viewBox="-4 0 36 36">
<path fill="currentColor" d="M14,0 C21.732,0 28,5.641 28,12.6 C28,23.963 14,36 14,36 C14,36 0,24.064 0,12.6 C0,5.641 6.268,0 14,0 Z"></path>
<circle fill="black" cx="14" cy="14" r="7"></circle>
</svg>`;
// Gen random data
const N = 30;
const gData = [...Array(N).keys()].map(() => ({
lat: (Math.random() - 0.5) * 180,
lng: (Math.random() - 0.5) * 360,
size: 7 + Math.random() * 30,
color: ['red', 'white', 'blue', 'green'][Math.round(Math.random() * 3)]
}));
const Globe = new ThreeGlobe()
.globeImageUrl('//unpkg.com/three-globe/example/img/earth-dark.jpg')
.bumpImageUrl('//unpkg.com/three-globe/example/img/earth-topology.png')
.htmlElementsData(gData)
.htmlElement(d => {
const el = document.createElement('div');
el.innerHTML = markerSvg;
el.style.color = d.color;
el.style.width = `${d.size}px`;
return el;
});
// Setup renderers
const renderers = [new THREE.WebGLRenderer(), new THREE.CSS2DRenderer()];
renderers.forEach((r, idx) => {
r.setSize(window.innerWidth, window.innerHeight);
if (idx > 0) {
// overlay additional on top of main renderer
r.domElement.style.position = 'absolute';
r.domElement.style.top = '0px';
r.domElement.style.pointerEvents = 'none';
}
document.getElementById('globeViz').appendChild(r.domElement);
});
// Setup scene
const scene = new THREE.Scene();
scene.add(Globe);
scene.add(new THREE.AmbientLight(0xcccccc));
scene.add(new THREE.DirectionalLight(0xffffff, 0.6));
// 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 THREE.TrackballControls(camera, renderers[0].domElement);
tbControls.minDistance = 101;
tbControls.rotateSpeed = 5;
tbControls.zoomSpeed = 0.8;
// Update pov when camera moves
Globe.setPointOfView(camera.position, Globe.position);
tbControls.addEventListener('change', () => Globe.setPointOfView(camera.position, Globe.position));
// Kick-off renderers
(function animate() { // IIFE
// Frame cycle
tbControls.update();
renderers.forEach(r => r.render(scene, camera));
requestAnimationFrame(animate);
})();
</script>
</body>