動畫animation的三個應用(漂浮的白雲、旋轉的星球、正方體合成)

目錄

前面的話

　　前面介紹過動畫animation的詳細用法，本文主要介紹動畫animation的三個效果

漂浮的白雲

【效果演示】

【簡要介紹】

　　漂浮的白雲主要通過遠景白雲和近景白雲來實現立體漂浮效果。遠景和近景分別使用兩張背景圖片，通過改變其背景定位來實現白雲移動效果，通過設置不同的動畫持續時間來實現交錯漂浮的效果

【主要代碼】

.box{
    position: relative;
    height: 300px;
    width: 500px;
}    
.in1,.in2{
    position: absolute;
    height: 100%;
    width: 100%;
    background-size:cover;
    animation: move 100s infinite linear alternate;
}
@keyframes move{
    100%{background-position: 500% 0;}
}
.in1{
    background-image: url('http://sandbox.runjs.cn/uploads/rs/26/ddzmgynp/cloud.png');   
}
.in2{
    background-image: url('http://sandbox.runjs.cn/uploads/rs/26/ddzmgynp/cloud1.png');
    animation-duration: 10s;
}

<div class="box">
    <div class="in1"></div>
    <div class="in2"></div>
</div>

源碼查看

旋轉的星球

【效果演示】

【簡要介紹】

　　旋轉的星球主要通過rotate()旋轉函數來實現。實際上，藍色的地球和黑色的月球並沒有發生旋轉，只是其父級旋轉形成的視覺上的旋轉效果

【代碼演示】

.box{
    transform: scale(0.5);
    position: relative;
    padding: 1px;
    height: 300px;
    width: 300px;
}    
.sunline{
    position:relative;
    height: 400px;
    width: 400px;
    border: 2px solid black;
    border-radius: 50%;
    margin: 50px 0 0 50px;
    display: flex;
    animation: rotate 10s infinite linear;
}
.sun{
    height: 100px;
    width: 100px;
    margin: auto;
    background-color: red;
    border-radius: 50%;
    box-shadow: 5px 5px 10px red,-5px -5px 10px red,5px -5px 10px red,-5px 5px 10px red;
}
.earthline{
    position: absolute;
    right: 0;
    top: 50%;
    height: 200px;
    width: 200px;
    margin: -100px -100px 0 0;
    border: 1px solid black;
    border-radius: 50%;
    display: flex;
    animation: rotate 2s infinite linear;
}
.earth{
    margin: auto;
    height: 50px;
    width: 50px;
    background-color: blue;
    border-radius: 50%;
}
.moon{
    position: absolute;
    left: 0;
    top: 50%;
    height: 20px;
    width: 20px;
    margin: -10px 0 0 -10px;
    background-color: black;
    border-radius: 50%;
}
@keyframes rotate{
    100%{transform:rotate(360deg);}
}

<div class="box">
    <div class="sunline">
        <div class="sun"></div>
        <div class="earthline">
            <div class="earth"></div>
            <div class="moon"></div>
        </div>
    </div>
</div>

源碼查看 

正方體合成

【效果演示】

【簡要介紹】

　　該效果主要通過設置計算後的延遲時間來達到正方體的各個邊順序動畫的效果。一次動畫結束後，通過觸發animationend事件重置animation-name來實現重覆動畫的效果

【代碼演示】

ul{
    margin: 0;
    padding: 0;
    list-style: none;
}
.box{
    height: 100px;
    width: 100px;
    perspective: 500px;
    margin: 50px 0 0 50px;
}    
.list{
    position: relative;
    height: 100px;
    width: 100px;
    background-color: blue;
    transform-style: preserve-3d;
    transform-origin: 0 0 0;
    animation: rotate 1s  10s 3 both linear;
}
.in{
    position: absolute;
    height: 100px;
    width: 100px;
}
.list .in:nth-child(6){
    background-color: pink;
    transform-origin: top;
    animation: in6 2s both;
}
.list .in:nth-child(5){
    background-color: lightgreen;
    transform-origin: right;
    animation: in5 2s 2s both;
}
.list .in:nth-child(4){
    background-color: lightblue;
    transform-origin: bottom;
    animation: in4 2s 4s both;
}
.list .in:nth-child(3){
    background-color: lightcoral;
    transform-origin: left;
    animation: in3 2s 6s both;
}
.list .in:nth-child(2){
    background-color: lightcyan;
    animation: in2 2s 8s both;
}
.list .in:nth-child(1){background-color: lightsalmon;}
.box:hover .list{animation-play-state: paused;}
.box:hover .in{animation-play-state: paused;}
@keyframes in6{100%{transform: rotateX(90deg);}}
@keyframes in5{100%{transform: rotateY(90deg);}}
@keyframes in4{100%{transform: rotateX(-90deg);}}
@keyframes in3{100%{transform: rotateY(-90deg);}}
@keyframes in2{100%{transform: translateZ(100px);}}
@keyframes rotate{100%{transform: rotate3d(1,1,1,360deg);}}

<div class="box">
    <ul class="list" id="list">
        <li class="in"></li>
        <li class="in"></li>
        <li class="in"></li>
        <li class="in"></li>
        <li class="in"></li>
        <li class="in"></li>
    </ul>
</div>

list.addEventListener('animationend',function(e){
    e = e || event;
    var target = e.target || e.srcElement;
    if(target.nodeName == 'UL'){
        list.style.animationName = 'none';
        var children = list.getElementsByTagName('li');
        for(var i = 0; i < children.length;i++){
            children[i].style.animationName = 'none';
        }
        setTimeout(function(){
            list.style.animationName = 'rotate';
            var children = list.getElementsByTagName('li');
            for(var i = 0; i < children.length;i++){
                children[i].style.animationName = 'in' + (i+1);
            }        
        },100);        
    }
},false);

源碼查看