three-globe
Version:
Globe data visualization as a ThreeJS reusable 3D object
100 lines (84 loc) • 2.85 kB
HTML
<head>
<style>
body {
margin: 0;
font-family: SansSerif;
}
#time {
position: absolute;
bottom: 8px;
left: 8px;
color: lightblue;
}
</style>
<script src="//unpkg.com/three"></script>
<script src="//unpkg.com/three-globe"></script>
<!-- <script src="../../dist/three-globe.js"></script>-->
<script src="//unpkg.com/solar-calculator"></script>
</head>
<body>
<div id="globeViz"></div>
<div id="time"></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';
Object.assign(THREE , { TrackballControls });
const VELOCITY = 9; // minutes per frame
const sunPosAt = dt => {
const day = new Date(+dt).setUTCHours(0, 0, 0, 0);
const t = solar.century(dt);
const longitude = (day - dt) / 864e5 * 360 - 180;
return [longitude - solar.equationOfTime(t) / 4, solar.declination(t)];
};
let dt = +new Date();
const solarTile = { pos: sunPosAt(dt) };
const timeEl = document.getElementById('time');
const Globe = new ThreeGlobe()
.globeImageUrl('//unpkg.com/three-globe/example/img/earth-dark.jpg')
.tilesData([solarTile])
.tileLng(d => d.pos[0])
.tileLat(d => d.pos[1])
.tileAltitude(0.005)
.tileWidth(180)
.tileHeight(180)
.tileUseGlobeProjection(false)
.tileMaterial(() => new THREE.MeshLambertMaterial({ color: '#ffff00', opacity: 0.3, transparent: true }))
.tilesTransitionDuration(0);
// animate time of day
requestAnimationFrame(() =>
(function animate() {
dt += VELOCITY * 60 * 1000;
solarTile.pos = sunPosAt(dt);
Globe.tilesData([solarTile]);
timeEl.textContent = new Date(dt).toLocaleString();
requestAnimationFrame(animate);
})()
);
// Setup renderer
const renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.getElementById('globeViz').appendChild(renderer.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, 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>