mirror of
https://github.com/jiawanlong/Cesium-Examples.git
synced 2025-11-04 01:04:17 +00:00
229 lines
4.8 KiB
HTML
229 lines
4.8 KiB
HTML
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<style>
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* {
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<div id="container" ></div>
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<script async src="./es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "./../../three/build/three.module.js",
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"three/addons/": "./../../three/examples/jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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function getPageParams() {
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var pageurl = window.location.href;
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var param = {};
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if (pageurl.indexOf("?") != -1) {
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var paramstr = pageurl.split("?")[1];
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var pArr = paramstr.split("&");
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var tArr = null;
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for (var i = 0; i < pArr.length; i++) {
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tArr = pArr[i].split("=");
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if (tArr.length == 2) {
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param[tArr[0]] = tArr[1];
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} else {
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param[tArr[0]] = "";
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}
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}
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}
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return param;
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}
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let camera, scene, renderer;
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let isUserInteracting = false,
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onPointerDownMouseX = 0, onPointerDownMouseY = 0,
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lon = 0, onPointerDownLon = 0,
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lat = 0, onPointerDownLat = 0,
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phi = 0, theta = 0;
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init();
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animate();
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function init() {
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var obj = getPageParams()
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const container = document.getElementById('container');
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camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1100);
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scene = new THREE.Scene();
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const geometry = new THREE.SphereGeometry(500, 60, 40);
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geometry.scale(- 1, 1, 1);
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let texture
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if (obj.url) {
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texture = new THREE.TextureLoader().load(obj.url);
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} else {
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texture = new THREE.TextureLoader().load('./360.jpg');
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}
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const material = new THREE.MeshBasicMaterial({ map: texture });
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const mesh = new THREE.Mesh(geometry, material);
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scene.add(mesh);
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio(window.devicePixelRatio);
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renderer.setSize(window.innerWidth, window.innerHeight);
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container.appendChild(renderer.domElement);
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container.style.touchAction = 'none';
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container.addEventListener('pointerdown', onPointerDown);
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document.addEventListener('wheel', onDocumentMouseWheel);
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//
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document.addEventListener('dragover', function (event) {
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event.preventDefault();
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event.dataTransfer.dropEffect = 'copy';
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});
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document.addEventListener('dragenter', function () {
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document.body.style.opacity = 0.5;
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});
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document.addEventListener('dragleave', function () {
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document.body.style.opacity = 1;
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});
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document.addEventListener('drop', function (event) {
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event.preventDefault();
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const reader = new FileReader();
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reader.addEventListener('load', function (event) {
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material.map.image.src = event.target.result;
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material.map.needsUpdate = true;
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});
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reader.readAsDataURL(event.dataTransfer.files[0]);
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document.body.style.opacity = 1;
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});
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//
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window.addEventListener('resize', onWindowResize);
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize(window.innerWidth, window.innerHeight);
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}
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function onPointerDown(event) {
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if (event.isPrimary === false) return;
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isUserInteracting = true;
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onPointerDownMouseX = event.clientX;
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onPointerDownMouseY = event.clientY;
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onPointerDownLon = lon;
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onPointerDownLat = lat;
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document.addEventListener('pointermove', onPointerMove);
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document.addEventListener('pointerup', onPointerUp);
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}
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function onPointerMove(event) {
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if (event.isPrimary === false) return;
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lon = (onPointerDownMouseX - event.clientX) * 0.1 + onPointerDownLon;
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lat = (event.clientY - onPointerDownMouseY) * 0.1 + onPointerDownLat;
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}
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function onPointerUp() {
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if (event.isPrimary === false) return;
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isUserInteracting = false;
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document.removeEventListener('pointermove', onPointerMove);
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document.removeEventListener('pointerup', onPointerUp);
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}
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function onDocumentMouseWheel(event) {
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const fov = camera.fov + event.deltaY * 0.05;
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camera.fov = THREE.MathUtils.clamp(fov, 10, 75);
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camera.updateProjectionMatrix();
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}
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function animate() {
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requestAnimationFrame(animate);
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update();
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}
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function update() {
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if (isUserInteracting === false) {
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// lon += 0.1;
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}
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lat = Math.max(- 85, Math.min(85, lat));
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phi = THREE.MathUtils.degToRad(90 - lat);
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theta = THREE.MathUtils.degToRad(lon);
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const x = 500 * Math.sin(phi) * Math.cos(theta);
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const y = 500 * Math.cos(phi);
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const z = 500 * Math.sin(phi) * Math.sin(theta);
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camera.lookAt(x, y, z);
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renderer.render(scene, camera);
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}
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</script>
|
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</body>
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</html>
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