地球 three.js 城市 3d
地球 three.js 城市 3d
在网上各种学习，特别是一个用vue写的模拟“最好看地球”那个代码，结合自己的思想改出了这个地球，已经能用了，大家学习下。
直接上代码
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js canvas - geometry - earth</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #808080;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #ffffff;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #0080ff;
}
</style>
</head>
<body>
<div>
<div style = "position:absolute;margin-top:50px;margin-left:40px;">
</div>
<div id="container" style = "position:absolute;margin-top:0px;margin-left:0px;"></div>
</div>
<script src="earch/three.js"></script>
<script src="earch/Projector.js"></script>
<script src="js/tween.min.js" ></script>
<script>
var container;
var camera,scene,renderer,cloudsMesh,earth;
var group;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var raycaster;
var locationGroup=null;
var mouse;
var objects = [];
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var stateforzhuan = "0";
var LOCATIONS = [{
name: 'namibia',
coord: [-19.2, 14.11666667], // 19° 12' S, 13° 67' E
position: [4.6, -1.29, -2.42],
cameraFarPosition: [-20.03, 13.47, -14.61],
cameraNearPosition: [-3.54, 2.38, -2.58],
imageName: 'earch/i_namibia.png',
coordSpriteIndex: 4,
videoSprite: [10.80, 19.10],
soundSprite: [0, 10.057142857142857]
}, {
name: 'mariana',
coord: [18.25, 142.81666667], // 17° 75' N, 142° 49' E
position: [-4.390, 2.660, -2.410],
cameraFarPosition: [26.46, -6.94, -9.96],
cameraNearPosition: [4.52, -1.30, -1.63],
imageName: 'earch/i_mariana.png',
coordSpriteIndex: 3,
videoSprite: [2.80, 8.40],
soundSprite: [24, 34.10938775510204]
}, {
name: 'greenland',
coord: [72.16666667, -43], // 71° 70' N, 42° 60' W
position: [1.880, 5.09, 0.89],
cameraFarPosition: [7.24, 26.52, 7.06],
cameraNearPosition: [1.30, 4.66, 1.24],
imageName: 'earch/i_greenland.png',
coordSpriteIndex: 2,
videoSprite: [40.20, 47.80],
soundSprite: [48, 58.10938775510204]
}, {
name: 'galapagos',
coord: [1.33333333, -91.15], // 01° 20' N, 90° 69' W
position: [0.550, 0.024, 5.39],
cameraFarPosition: [-0.60, 0.14, 28.21],
cameraNearPosition: [-0.10, 0.024, 4.99],
imageName: 'earch/i_galapagos.png',
coordSpriteIndex: 1,
videoSprite: [22.00, 37.43],
soundSprite: [12, 22.057142857142857]
}, {
name: 'antarctica',
coord: [-77.96666667, -155.63333333], // 77° 58' S, 155° 38' W
position: [-1.32, -5.05, 0.98],
cameraFarPosition: [-7.88, -27.00, 1.87],
cameraNearPosition: [-1.39, -4.75, 0.33],
imageName: 'earch/i_antarctica.png',
coordSpriteIndex: 0,
videoSprite: [50.90, 69.00],
soundSprite: [36, 46.05714285714286]
}];
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 0.1, 1000 );
camera.position.z = 23;
scene = new THREE.Scene();
group = new THREE.Group();
locationGroup = new THREE.Group();
scene.add( group );
group.add( locationGroup );
//地点
LOCATIONS.forEach(location=>{
var sprite = createLocationSprite(location)
locationGroup.add(sprite)
objects.push( sprite )
});
//地球
earth = createEarth();
objects.push( earth );
group.add(earth);
//云彩
var cloudsGeo = new THREE.SphereGeometry(5.1,32,32);
var cloudsMater = new THREE.MeshPhongMaterial({map:getTexture('earch/earth_cloud.171481f.png'),transparent:true,opacity:1,blending:THREE.additiveBlending});
cloudsMesh = new THREE.Mesh(cloudsGeo,cloudsMater);
group.add(cloudsMesh);
//灯
scene.add(new THREE.AmbientLight(0x39393939,0.9));
var spotLight = new THREE.SpotLight(0xffffff,1.2);
spotLight.position.set(-26,15,15);
//角度
spotLight.angle = 0.2;
//投影
spotLight.castShadow = false;
spotLight.penumbra = 0.4;
spotLight.distance = 124;
spotLight.decay = 1;
spotLight.shadow.camera.near = 50;
spotLight.shadow.camera.far = 200;
spotLight.shadow.camera.fov = 35;
spotLight.shadow.mapSize.height = 1024;
spotLight.shadow.mapSize.width = 1024;
scene.add(spotLight);
//光影投射器
raycaster = new THREE.Raycaster();
//鼠标的点
mouse = new THREE.Vector2();
//渲染
renderer = new THREE.WebGLRenderer({antialias:true});
renderer.setClearColor(0x000000,0);
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
window.addEventListener( 'resize', onWindowResize, false );
}
function createEarth () {
return new THREE.Mesh(
new THREE.SphereGeometry(5, 32, 32),
new THREE.MeshPhongMaterial({
map: getTexture('earch/earth4.7cddb76.jpg'),
bumpMap: getTexture('earch/earth_bump.55b3930.jpg'),
bumpScale: 0.15,
specularMap: getTexture('earch/earth_spec.jpg'),
specular: new THREE.Color('#909090'),
shininess: 5,
transparent: true
})
)
}
function getTexture(str){
var loader = new THREE.TextureLoader();
return loader.load(str);
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
cloudsMesh.rotation.y += 0.0002;
if(stateforzhuan=="1"){
group.rotation.y += targetRotation;
targetRotation = 0;
}else{
group.rotation.y += 0.0008;
}
TWEEN.update();
renderer.render( scene, camera );
}
function createLocationSprite(location){
var spriteMaterial = new THREE.SpriteMaterial({
map:THREE.ImageUtils.loadTexture(location.imageName),
color:0xffffff,
fog:true
})
var sprite = new THREE.Sprite(spriteMaterial)
sprite.position.set(location.position[0],location.position[1],location.position[2])
sprite.scale.set(1.4,1.4,1.4)
return sprite
}
//点击
function onDocumentMouseDown( event ) {
event.preventDefault();
//计算在图形中位置 鼠标 x -1到1之间
mouse.x = ( event.clientX / renderer.domElement.clientWidth ) * 2 - 1;
mouse.y = - ( event.clientY / renderer.domElement.clientHeight ) * 2 + 1;
//从新 从相机到鼠标位置射线 并且获得接触的物体。
raycaster.setFromCamera( mouse, camera );
var intersects = raycaster.intersectObjects( objects );
//除了地球以外的精灵面
if ( intersects.length > 0 && intersects[0].face==null) {
//点击
intersects[ 0 ].object.material.color.setHex( Math.random() * 0xffffff );
var tween = new TWEEN.Tween(camera.position).to({ x: 0, y: 0, z: 18 }, 1000).start();
}else{
onDocumentMouseDownzhuan( event );
}
}
//按下鼠标的时候
function onDocumentMouseDownzhuan( event ) {
//标志标识正在控制
stateforzhuan = "1";
event.preventDefault();
//移动
window.addEventListener( 'mousemove', onDocumentMouseMove, false );
window.addEventListener( 'mouseup', onDocumentMouseUp, false );
window.addEventListener( 'mouseout', onDocumentMouseOut, false );
//mouseXOnMouseDown距离中线的距离
mouseXOnMouseDown = event.clientX - windowHalfX;
}
function onDocumentMouseUp( event ) {
stateforzhuan = "0";
window.removeEventListener( 'mousemove', onDocumentMouseMove, false );
window.removeEventListener( 'mouseup', onDocumentMouseUp, false );
window.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
stateforzhuan = "0";
window.removeEventListener( 'mousemove', onDocumentMouseMove, false );
window.removeEventListener( 'mouseup', onDocumentMouseUp, false );
window.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
//移动
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
//mouseXOnMouseDown距离中线的距离
targetRotation = 180*( mouseX - mouseXOnMouseDown )*0.000008/3.145926*5;
mouseXOnMouseDown = mouseX;
}
</script>
</body>
</html>
