基于css3新属性transform及原生js实现鼠标拖动3d立方体旋转_html/css

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基于css3新属性transform及原生js实现鼠标拖动3d立方体旋转_html/css_WEB-ITnose

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Jun 24, 2016 am 11:15 AM

基于css3新属性transform，实现3d立方体的旋转

通过原生JS，点击事件，鼠标按下、鼠标抬起和鼠标移动事件，实现3d立方体的拖动旋转，并将旋转角度实时的反应至界面上显示

实现原理：通过获取鼠标点击屏幕时的坐标和鼠标移动时的坐标，来获得鼠标在X轴、Y轴移动的距离，将距离实时赋值给transform属性

从而通过改变transform：rotate属性值来达到3d立方体旋转的效果

　　HTML代码块：

<body>    <input type="button" class="open" value="点击散开"/>    <input type="text" class="xNum" value="0"/>//X轴旋转角度    <input type="text" class="yNum" value="0"/>//Y轴旋转角度    <input type="text" class="zNum"/>    <div class="big_box">        <div class="box">            <span>1</span>            <span>2</span>            <span>3</span>            <span>4</span>            <span>5</span>            <span>6</span>        </div>    </div></body>

　　CSS代码块：

<style>        body{cursor: url("img/openhand1.png"),auto;}        .big_box{            width: 500px;            height: 500px;            margin: 200px auto;        }        .box{            -webkit-transform-style: preserve-3d;            -moz-transform-style: preserve-3d;            -ms-transform-style: preserve-3d;            transform-style: preserve-3d;            transform-origin:100px 100px 00px;            position: relative;            transform: rotatex(0deg) rotatey(0deg) rotatez(0deg)scale3d(0.7,0.7,0.7);        }        .box span{            transition: all 1s linear;        }        span{            display: block;            position: absolute;            width: 200px;            height: 200px;            box-sizing: border-box;            border:1px solid #999;            /*opacity: 0.7;*/            text-align: center;            line-height: 200px;            font-size: 60px;            font-weight: 700;            border-radius: 12%;        }        .box span:nth-child(1){            background-color: deepskyblue;            transform-origin: left;            transform: rotatey(-90deg) translatex(-100px);//左        }        .box span:nth-child(2){            background-color: red;            transform-origin: right;            transform: rotatey(90deg) translatex(100px) ;//右        }        .box span:nth-child(3){            background-color: green;            transform-origin: top;            transform: rotatex(90deg) translatey(-100px) ;//上        }        .box span:nth-child(4){            background-color: #6633FF;            transform-origin: bottom;            transform: rotatex(-90deg) translatey(100px);//下        }        .box span:nth-child(5){            background-color: gold;            transform: translatez(-100px);//后        }        .box span:nth-child(6){            background-color: #122b40;            transform: translatez(100px);//前        }        .box:hover span{            opacity: 0.3;        }        .box:hover{            animation-play-state:paused;//设置动画暂停        }    </style>

　　JS代码块：

<script>    move();    clickBox();    //鼠标按下且移动时触发，    function move(){        var body = document.querySelector("body");        var box = document.querySelector(".box");        var xNum =document.querySelector(".xNum");        var yNum =document.querySelector(".yNum");        var x = 0,y = 0,z = 0;        var xx = 0,yy = 0;        var xArr = [],yArr = [];        window.onmousedown = function (e) {//鼠标按下事件            body.style.cursor = 'url("img/closedhand1.png"),auto';            xArr[0] = e.clientX/2;//获取鼠标点击屏幕时的坐标            yArr[0] = e.clientY/2;            window.onmousemove = function (e) {//鼠标移动事件————当鼠标按下且移动时触发                xArr[1] = e.clientX/2;//获取鼠标移动时第一个点的坐标                yArr[1] = e.clientY/2;                yy += xArr[1] - xArr[0];//获得鼠标移动的距离                xx += yArr[1] - yArr[0];                xNum.value = xx+"&deg;";//将所获得距离数字赋值给input显示旋转角度                yNum.value = yy+"&deg;";                //将旋转角度写入transform中                box.style.transform = "rotatex("+xx+"deg) rotatey("+yy+"deg) rotatez(0deg)scale3d(0.7,0.7,0.7)";                xArr[0] = e.clientX/2;                yArr[0] = e.clientY/2;            }        };        window.onmouseup = function () {//鼠标抬起事件————用于清除鼠标移动事件，            body.style.cursor = 'url("img/openhand1.png"),auto';            window.onmousemove = null;        }    }    //点击事件、负责立方体盒子的六面伸展    function clickBox(){        var btn = document.querySelector(".open");        var box = document.querySelector(".box");        var son = box.children;        var value = 0;        //存储立方体散开时的transform参数        var arr0 = ["rotatey(-90deg) translatex(-100px)","rotatey(90deg) translatex(100px)","rotatex(90deg) translatey(-100px)",<br />"rotatex(-90deg) translatey(100px)","translatez(-100px)","translatez(100px)"];        //存储立方体合并时的transform参数        var arr1 = ["rotatey(-90deg) translatex(-100px)translatez(100px)","rotatey(90deg) translatex(100px)translatez(100px)",<br />"rotatex(90deg) translatey(-100px)translatez(100px)","rotatex(-90deg) translatey(100px)translatez(100px)","translatez(-200px)","translatez(200px)"];        btn.onclick = function(){            if(value == 0){                value = 1;                btn.value = "点击合并";                for(var i=0;i<arr1.length;i++){                    son[i].style.transform = arr1[i];                    console.log(son[i])                }            }else if(value == 1){                value = 0;                btn.value = "点击散开";                for(var j=0;j<arr0.length;j++){                    son[j].style.transform = arr0[j];                    console.log(j);                }            }        };    }</script>

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