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CSS3 transform及原生js实现鼠标拖动3D立方体旋转

来源:     阅读(111)     发布时间:2016-07-31    
[ 导读 ] 这篇文章主要为大家详细介绍了css3 transform及原生js实现鼠标拖动3D立方体旋转的相关资料,感兴趣的小伙伴们可以参考一下
本文通过原生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: rightright;   
            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: bottombottom;   
            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+"°";//将所获得距离数字赋值给input显示旋转角度   
                yNum.value = yy+"°";   
                //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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