# 延轨迹平滑效果
背景知识
animation (opens new window), transition (opens new window), transform (opens new window), animation-delay (opens new window)
“transform-origin 只是一个语法糖而已。实际上你总是可以用 translate() 来代替它。” [——James Anderson](/Aryeh Gregor)
<style>
.main {
width: 100%; height: 529px;
display: flex;
flex-direction: column;
align-items: center;
}
.path {
width: 300px; height: 300px;
border-radius: 50%;
margin: 100px auto;
position: relative;
display: flex;
border: 1px solid #b4a078;
}
.logo {
width: 52px;
margin: auto;
background: #FFF;
}
.avatar {
width: 50px;
position: absolute;
top: 124px; left: 124px;
animation: circular-smooth-spin 7.5s infinite linear;
animation-play-state: running;
}
.avatar > span {
font-weight: 500;
position: absolute;
white-space: nowrap;
top: -50%; left: 50%;
padding: 3px 12px;
opacity: 0;
transform: scale(0);
transition: opacity, transform .8s;
transform-origin: 0 bottom;
}
.avatar > img {
width: inherit;
border-radius: 50%;
overflow: hidden;
}
.path:hover .avatar {
animation-play-state: paused;
}
.path:hover .avatar > span {
opacity: 1;
transform: scale(1);
transition: opacity, transform .8s;
}
.avatar:nth-of-type(2){
animation-delay: -1.5s;
}
.avatar:nth-of-type(3){
animation-delay: -3s;
}
.avatar:nth-of-type(4){
animation-delay: -4.5s;
}
.avatar:nth-of-type(5){
animation-delay: -6s;
}
@keyframes circular-smooth-spin {
from {
transform: rotate(0turn) translateY(-124px) rotate(1turn)
}
to {
opacity: 1;
transform: rotate(1turn) translateY(-124px) rotate(0turn)
}
}
</style>
<template>
<main class="main">
<div class="path">
<img class="logo" src="https://cn.vuejs.org/images/logo.png" />
<div class="avatar">
<span>one</span>
<svg aria-labelledby="simpleicons-github-dark-icon" lang="" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title id="simpleicons-github-dark-icon" lang="en">GitHub Dark icon</title><path fill="#7F8C8D" d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"></path></svg>
</div>
<div class="avatar">
<span>two</span>
<svg aria-labelledby="simpleicons-github-dark-icon" lang="" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title id="simpleicons-github-dark-icon" lang="en">GitHub Dark icon</title><path fill="#7F8C8D" d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"></path></svg>
</div>
<div class="avatar">
<span>three</span>
<svg aria-labelledby="simpleicons-github-dark-icon" lang="" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title id="simpleicons-github-dark-icon" lang="en">GitHub Dark icon</title><path fill="#7F8C8D" d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"></path></svg>
</div>
<div class="avatar">
<span>four</span>
<svg aria-labelledby="simpleicons-github-dark-icon" lang="" role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title id="simpleicons-github-dark-icon" lang="en">GitHub Dark icon</title><path fill="#7F8C8D" d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"></path></svg>
</div>
<div class="avatar">
<span>vue</span>
<img src="https://cn.vuejs.org/images/logo.png"/>
</div>
</div>
</main>
</template>
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