css-3D线框地球
索洪波 2020-09-17 特效CSS
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>css球体</title>
</head>
<style>
* {
margin: 0;
padding: 0;
}
html,
body,
.container,
.box {
height: 100%;
}
.container,
.box {
position: relative;
width: 100%;
height: 100%;
display: flex;
justify-content: center;
align-items: center;
transform-style: preserve-3d;
}
.container {
perspective: 500px;
overflow: hidden;
}
.box {
animation: rotate 20s linear infinite;
}
.box>div {
position: absolute;
width: 320px;
height: 320px;
border: solid 1px #000;
border-radius: 50%;
}
@keyframes rotate {
0% {
transform: rotateZ(23deg) rotateY(0deg);
}
100% {
transform: rotateZ(23deg) rotateY(360deg);
}
}
</style>
<body>
<div class="container">
<div class="box"> </div>
</div>
<script>
function addLongitude() {
var count = 18
var stepDeg = 180 / count
var fragment = document.createDocumentFragment()
for (var i = 0; i < count; i++) {
var div = document.createElement('div')
div.style.transform = 'rotateY(' + ~~(i * stepDeg) + 'deg)'
fragment.appendChild(div)
}
document.querySelector('.box').appendChild(fragment)
}
function addLatitude() {
var r = 160
var stepDeg = 10
var start = -80
var end = 80
var fragment = document.createDocumentFragment()
for (var i = start; i <= end; i += stepDeg) {
var div = document.createElement('div')
var _r = ~~(Math.cos(i / 180 * Math.PI) * r * 2) + 'px'
div.style.width = _r
div.style.height = _r
div.style.transform = 'translateY(' + ~~(Math.sin(i / 180 * Math.PI) * r) + 'px) rotateX(90deg)'
fragment.appendChild(div)
}
document.querySelector('.box').appendChild(fragment)
}
window.onload = function () {
addLongitude()
addLatitude()
}
</script>
</body>
</html>
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