Javascript 将圆柱体转换为弯管
我已经创建了一个带有纹理和网格的圆柱体以及一个网格的场景，网格的线和顶点为three.js。通过向左或向右拖动鼠标，圆柱体具有旋转效果Javascript 将圆柱体转换为弯管,javascript,html5-canvas,three.js,Javascript,Html5 Canvas,Three.js,我已经创建了一个带有纹理和网格的圆柱体以及一个网格的场景，网格的线和顶点为three.js。通过向左或向右拖动鼠标，圆柱体具有旋转效果 <!DOCTYPE html> <html lang="en"> <head> <title>3d Model using HTML5 and three.js</title> <meta charset="utf-8"> <me
<!DOCTYPE html>
<html lang="en">
<head>
<title>3d Model using HTML5 and three.js</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 {
font-family: Monospace;
background-color: #f0f0f0;
margin: 0px;
overflow: hidden;
}
</style>
</head>
<body>
<script src="three.min.js" type="text/javascript"></script>
<script src="Stats.js" type="text/javascript"></script>
<script src="Detector.js" type="text/javascript"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
var container, stats;
var camera, scene, renderer, light, projector;
var particleMaterial;
var cylinder, line, geometry, geometry1;
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var objects = [];
var radious = 1600, theta = 45, onMouseDownTheta = 45, phi = 60, onMouseDownPhi = 60, isShiftDown = false;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
var info = document.createElement( 'div' );
info.style.position = 'absolute';
info.style.top = '10px';
info.style.width = '100%';
info.style.textAlign = 'center';
info.innerHTML = 'Drag to spin the cylinder<br/>Objective: By spining left, cylinder should go into the surface and by spining right it should come out.';
container.appendChild( info );
// camera
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.y = 200;
camera.position.z = 800;
// scene
scene = new THREE.Scene();
// light
scene.add( new THREE.AmbientLight( 0x404040 ) );
light = new THREE.DirectionalLight( 0xffffff );
light.position.set( 0, 1, 0 );
scene.add( light );
// texture
var materials = [];
for ( var i = 0; i < 6; i ++ ) {
materials.push( new THREE.MeshBasicMaterial( { color: Math.random() * 0xffffff } ) );
}//alert(materials.length);
// Grid
geometry = new THREE.Geometry();
geometry.vertices.push( new THREE.Vector3( - 500, 0, 0 ) );
geometry.vertices.push( new THREE.Vector3( 500, 0, 0 ) );
for ( var i = 0; i <= 20; i ++ ) {
line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.z = ( i * 50 ) - 500;
scene.add( line );
line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x000000, opacity: 0.2 } ) );
line.position.x = ( i * 50 ) - 500;
line.rotation.y = 90 * Math.PI / 180;
scene.add( line );
}
// cylinder
geometry1 = new THREE.CylinderGeometry(100, 100, 300, 16, 4, false);
cylinder = new THREE.Mesh(geometry1 ,new THREE.MeshLambertMaterial( { color: 0x2D303D, wireframe: true, shading: THREE.FlatShading } ));
//cylinder.position.x = 100;
cylinder.position.y = -50;
//cylinder.overdraw = true;
scene.add(cylinder);
alert(geometry1.faces.length);
objects.push(cylinder);
// projector
projector = new THREE.Projector();
// renderer
renderer = new THREE.CanvasRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
// stats
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.left = window.innerWidth / - 2;
camera.right = window.innerWidth / 2;
camera.top = window.innerHeight / 2;
camera.bottom = window.innerHeight / - 2;
camera.aspect = window.innerWidth / window.innerHeight;
//camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
}
function onDocumentMouseUp( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut( event ) {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
}
}
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
cylinder.rotation.y += ( targetRotation - cylinder.rotation.y ) * 0.05;
renderer.render( scene, camera );
}
</script>
</body>
</html>
使用HTML5和three.js的3d模型
身体{
字体系列：Monospace；
背景色：#f0；
边际：0px；
溢出：隐藏；
}
如果（！Detector.webgl）Detector.addGetWebGLMessage（）；
var容器，stats；
摄像机、场景、渲染器、灯光、投影仪；
var粒子材料；
var圆柱、直线、几何、几何1；
var目标=0；
var targetRotationOnMouseDown=0；
var-mouseX=0；
var mouseXOnMouseDown=0；
var windowHalfX=window.innerWidth/2；
var windowHalfY=window.innerHeight/2；
var对象=[]；
var radious=1600，θ=45，onMouseDownTheta=45，phi=60，onMouseDownPhi=60，isShiftDown=false；
init（）；
制作动画（）；
函数init（）{
container=document.createElement（'div'）；
文件.正文.附件（容器）；
var info=document.createElement（'div'）；
info.style.position='绝对'；
info.style.top='10px'；
info.style.width='100%'；
info.style.textAlign='center'；
info.innerHTML='拖动以旋转圆柱体
目标：向左旋转，圆柱体应进入曲面，向右旋转，圆柱体应出来'；
container.appendChild（info）；
//摄像机
摄像头=新的三个透视摄像头（70，window.innerWidth/window.innerHeight，11000）；
摄像机位置y=200；
摄像机位置z=800；
//场面
场景=新的三个。场景（）；
//轻的
添加（新的三个环境光（0x404040））；
灯光=新的三个方向灯光（0xffffff）；
光。位置。设置（0，1，0）；
场景。添加（灯光）；
//质地
var材料=[]；
对于（变量i=0；i<6；i++）{
push（新的3.MeshBasicMaterial（{color:Math.random（）*0xffffff}））；
}//警报（材料、长度）；
//网格
几何体=新的三个。几何体（）；
geometry.vertices.push（新的3.Vector3（-500,0,0））；
geometry.Vertexs.push（新的3.Vector3（500,0,0））；
对于（var i=0；i也许可以试着看看这把小提琴