Title

html,

body {

margin: 0;

padding: 0;

background-color: #29454d;

/*禁止文字被选中*/

-moz-user-select: none;

/*火狐*/

-webkit-user-select: none;

/*webkit浏览器*/

-ms-user-select: none;

/*IE10*/

-khtml-user-select: none;

/*早期浏览器*/

user-select: none;

overflow: hidden;

}

.box {

position: relative;

height: 500px;

width: 500px;

margin: 100px auto;

transform-style: preserve-3d;

perspective: 2000px;

}

.di {

position: absolute;

left: 50%;

top: 50%;

height: 200px;

width: 200px;

transform: translate(-50%, -50%) rotatex(90deg);

transform-style: preserve-3d;

}

.z {

position: relative;

height: 200px;

width: 200px;

border-radius: 50%;

transform-style: preserve-3d;

/*transform: rotatez(1deg);*/

}

p {

margin: 0;

position: absolute;

top: 0;

/*为了保证圆心在父盒子中心，父盒子旋转时圆心稳定，所以设置left*/

left: 25px;

height: 200px;

width: 150px;

border: 2px solid #fd7068;

box-sizing: border-box;

background-color: #ffffff;

background-size: cover;

background-position: center;

background-repeat: no-repeat;

/*opacity: .7;*/

font-size: 10px;

line-height: 200px;

text-align: center;

/*box-shadow: 0 0 100px #16ff8b;*/

/*倒影，不兼容*/

-webkit-box-reflect: below 10px -webkit-linear-gradient(top, rgba(250, 250, 250, 0), rgba(250, 250, 250, .0) 30%, rgba(250, 250, 250, 0.5));

box-reflect: below 10px -webkit-linear-gradient(top, rgba(250, 250, 250, 0), rgba(250, 250, 250, .0) 30%, rgba(250, 250, 250, 0.5));

/*backface-visibility: hidden;*/

}

window.onload = function () {

setPs();

move();

drop();

}

//给每个p标签设置位置

function setPs() {

var ps = document.getElementsByTagName('p');

for (var i = 0; i < ps.length; i++) {

ps[i].style.transform = 'rotatex(-90deg) rotatey(' + i * 30 + 'deg) translatez(400px)'

}

}

//鼠标拖动旋转

function move() {

var zBox = document.querySelector('.z');

var xBox = document.querySelector('.di');

//声明计算鼠标移动速度用的变量

var speedTimer = null;

var speedX = 0;

var speedY = 0;

//声明记录旋转角度的两个变量

var xDegNow = 90;

var zDegNow = 0;

//声明变量记录要旋转的角度

var xDegDistance = 0;

var zDegDistance = 0;

//声明变量记录是否发生鼠标移动事件

var isMove = false;

window.onmousedown = function (e) {

//鼠标按下

//清除过渡属性

xBox.style.transition = '';

zBox.style.transition = '';

//记录按下的坐标以及计算速度的初始坐标

var xstart = e.clientX;

var speedX_start = xstart;

var ystart = e.clientY;

var speedY_start = ystart;

//记录用来计算速度的初始时间

var tstart = new Date().getTime();

var tnow = tstart;

//设置计时器更新计算速度的当时时间

speedTimer = setInterval(function () {

tnow = new Date().getTime();

},10)

window.onmousemove = function (e) {

//鼠标移动

isMove = true;

//记录当时的坐标计算距离

var xnow = e.clientX;

var ynow = e.clientY;

var xDistance = xnow - xstart;

var yDistance = ynow - ystart;

//如果计时超过一定时间(10毫秒)，计算速度

if (tnow - tstart >= 10) {

//速度=(现在的坐标-初始坐标)/(现在时间-初始时间)

speedX = (xnow - speedX_start) / (tnow - tstart);

speedY = (ynow - speedY_start) / (tnow - tstart);

//让初始时间和坐标等于现在的时间和坐标

tstart = tnow;

speedX_start = xnow;

speedY_start = ynow;

}

//把鼠标移动距离计算成角度后设置到页面上

zDegDistance = zDegNow - (xDistance / 10);

zBox.style.transform = 'rotatez(' + zDegDistance + 'deg)';

xDegDistance = xDegNow - (yDistance / 10);

xDegDistance = xDegDistance > 179 ? 179 : xDegDistance < 1 ? 1 : xDegDistance;

xBox.style.transform = 'translate(-50%,-50%) rotatex(' + xDegDistance + 'deg)';

};

};

window.onmouseup = function (e) {

//鼠标松开

//清除计时器 清除鼠标移动事件

clearTimeout(speedTimer);

window.onmousemove = null;

//判断如果发生移动

if (isMove) {

//添加过渡属性

xBox.style.transition = 'all 0.5s ease-out';

zBox.style.transition = 'all 0.5s ease-out';

//根据速度计算目标角度，设置到页面上

zDegDistance = zDegDistance - (speedX * 10);

zBox.style.transform = 'rotatez(' + zDegDistance + 'deg)';

xDegDistance = xDegDistance - (speedY * 10);

xDegDistance = xDegDistance > 179 ? 179 : xDegDistance < 1 ? 1 : xDegDistance;

xBox.style.transform = 'translate(-50%,-50%) rotatex(' + xDegDistance + 'deg)';

//记录当前角度的值更新

xDegNow = xDegDistance;

zDegNow = zDegDistance;

//用到的变量重置

isMove = false;

speedX = 0;

speedY = 0;

xDegDistance = 0;

zDegDistance = 0;

}

};

}

//鼠标拖拽文件

function drop() {

//取消鼠标拖拽文件进入窗口的默认行为

window.ondragover = function (e) {

e.preventDefault();

}

window.ondrop = function (e) {

e.preventDefault();

}

//添加拖拽到p标签的事件

var ps = document.getElementsByTagName('p');

for (var i = 0; i < ps.length; i++) {

ps[i].index = i;

ps[i].ondrop = function (e) {

var w = new FileReader();

w.index = this.index;

w.readAsDataURL(e.dataTransfer.files[0]);

w.onload = function () {

ps[this.index].style.backgroundImage = 'url(' + w.result + ')';

ps[this.index].innerHTML = '';

}

}

}

}