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three.js + OpenLayers 回転できる地球楕円体を表示
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0"> | |
<script src="https://cdn.jsdelivr.net/gh/openlayers/openlayers.github.io@master/en/v6.9.0/build/ol.js"></script> | |
</head> | |
<body> | |
<div id="container"> | |
<div id="map" style="position: fixed; visibility:hidden; width: 1000px; height:500px;"></div> | |
</div> | |
<script src="js/three.js"></script> | |
<script src="https://unpkg.com/three@0.131.3/examples/js/controls/OrbitControls.js"></script> | |
<script type="module" src="index.js"></script> | |
</body> | |
</html> |
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import { WEBGL } from "./js/WebGL.js"; | |
const semiMajorAxis = 6378137; | |
const flattening = 1 - 1 / 298.257223563; // WGS 84 | |
const cameraNear = 0.001; | |
const cameraFar = 100000000; | |
let camera, scene, renderer, light, globe; | |
let controls; | |
let map, view; | |
if (WEBGL.isWebGLAvailable()) { | |
initThree(); | |
initMap(); | |
animate(); | |
} else { | |
const warning = WEBGL.getWebGLErrorMessage(); | |
document.getElementById('container').appendChild(warning); | |
} | |
function initThree() { | |
// three.js | |
scene = new THREE.Scene(); | |
renderer = new THREE.WebGLRenderer(); | |
document.body.appendChild(renderer.domElement); | |
globe = new THREE.Mesh( | |
new THREE.SphereGeometry(semiMajorAxis, 64, 64), | |
new THREE.MeshStandardMaterial() | |
); | |
scene.add(globe); | |
globe.scale.set(1, flattening, 1); | |
light = new THREE.AmbientLight(0xffffff); | |
scene.add(light); | |
camera = new THREE.PerspectiveCamera(110, window.innerWidth / window.innerHeight, cameraNear, cameraFar); | |
controls = new THREE.OrbitControls(camera, renderer.domElement); | |
controls.enableDamping = true; | |
controls.dampingFactor = 0.2; | |
controls.enablePan = false; | |
controls.minDistance = semiMajorAxis; | |
controls.maxDistance = semiMajorAxis + 1000000; | |
controls.zoomSpeed = 0.2; | |
camera.position.set(0, 0, controls.maxDistance); | |
camera.rotation.set(0, -Math.PI / 2, 0); | |
const gridHelper = new THREE.GridHelper(20000, 20); | |
scene.add(gridHelper); | |
const axisHelper = new THREE.AxisHelper(1000000000); | |
scene.add(axisHelper); | |
window.onresize = onWindowResize; | |
onWindowResize(); | |
} | |
function initMap() { | |
var osm = new ol.layer.Tile({ | |
extent: [-180, -90, 180, 90], | |
source: new ol.source.OSM() | |
}); | |
view = new ol.View({ | |
projection: "EPSG:4326", | |
extent: [-180, -90, 180, 90], | |
center: [0, 0], | |
zoom: 2 | |
}); | |
map = new ol.Map({ | |
target: 'map', | |
layers: [ | |
new ol.layer.Tile({ | |
extent: [-180, -90, 180, 90], | |
source: new ol.source.OSM({ | |
maxZoom: 2 | |
}) | |
}), | |
osm, | |
new ol.layer.Tile({ | |
source: new ol.source.TileDebug() | |
}), | |
], | |
view: view | |
}); | |
map.on("rendercomplete", function () { | |
var mapContainer = document.getElementById('map'); | |
var mapCanvas = mapContainer.getElementsByTagName('canvas')[0]; | |
var texture = new THREE.CanvasTexture(mapCanvas); | |
globe.material.map = texture; | |
globe.material.needsUpdate = true; | |
}); | |
controls.addEventListener("end", function (event) { | |
const a = Math.floor(20 - | |
(controls.getDistance() - controls.minDistance) / (controls.maxDistance - controls.minDistance) | |
* 19); | |
console.log(a); | |
}); | |
} | |
function onWindowResize() { | |
const width = window.innerWidth; | |
const height = window.innerHeight; | |
renderer.setPixelRatio(window.devicePixelRatio); | |
renderer.setSize(width, height); | |
camera.aspect = width / height; | |
camera.updateProjectionMatrix(); | |
} | |
function animate() { | |
try { | |
render(); | |
controls.update(); | |
requestAnimationFrame(animate); | |
} catch (error) { | |
console.error(error); | |
} | |
} | |
function render() { | |
renderer.render(scene, camera); | |
} |
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