js实现旋转木马效果
程序员文章站
2022-06-13 18:26:12
效果图：
代码如下：
&l...
效果图：
代码如下：
<html class=" js csstransforms3d" lang="zh"><head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>css3 3d transforms-旋转木马</title>
<link rel="stylesheet" type="text/css" href="http://www.htmleaf.com/pins/1412/201502062108/css/style.css" rel="external nofollow" >
<style media="screen">
.container {
width: 210px;
height: 140px;
position: relative;
margin: 50px auto 40px;
border: 1px solid #ccc;
-webkit-perspective: 1100px;
-moz-perspective: 1100px;
-o-perspective: 1100px;
perspective: 1100px;
}
#carousel {
width: 100%;
height: 100%;
position: absolute;
-webkit-transform-style: preserve-3d;
-moz-transform-style: preserve-3d;
-o-transform-style: preserve-3d;
transform-style: preserve-3d;
}
.ready #carousel {
-webkit-transition: -webkit-transform 1s;
-moz-transition: -moz-transform 1s;
-o-transition: -o-transform 1s;
transition: transform 1s;
}
#carousel.panels-backface-invisible figure {
-webkit-backface-visibility: hidden;
-moz-backface-visibility: hidden;
-o-backface-visibility: hidden;
backface-visibility: hidden;
}
#carousel figure {
display: block;
position: absolute;
width: 186px;
height: 116px;
left: 10px;
top: 10px;
border: 2px solid black;
line-height: 116px;
font-size: 80px;
font-weight: bold;
color: white;
text-align: center;
}
.ready #carousel figure {
-webkit-transition: opacity 1s, -webkit-transform 1s;
-moz-transition: opacity 1s, -moz-transform 1s;
-o-transition: opacity 1s, -o-transform 1s;
transition: opacity 1s, transform 1s;
}
#options{
margin-top: 200px;
width: 100%;
text-align: center;
}
#options button{padding: 0.5em 1.5em;border: 2px solid #6699cc;background: #fff;}
</style>
<!--[if ie]>
<script src="http://libs.useso.com/js/html5shiv/3.7/html5shiv.min.js"></script>
<![endif]-->
</head>
<section class="container">
<div id="carousel" style="transform: translatez(-286px) rotatey(0deg);">
<figure style="opacity: 1; background-color: rgba(255, 0, 0, 0.8); transform: rotatey(0deg) translatez(286px);">1</figure>
<figure style="opacity: 1; background-color: rgba(255, 170, 0, 0.8); transform: rotatey(40deg) translatez(286px);">2</figure>
<figure style="opacity: 1; background-color: rgba(169, 255, 0, 0.8); transform: rotatey(80deg) translatez(286px);">3</figure>
<figure style="opacity: 1; background-color: rgba(0, 255, 0, 0.8); transform: rotatey(120deg) translatez(286px);">4</figure>
<figure style="opacity: 1; background-color: rgba(0, 255, 169, 0.8); transform: rotatey(160deg) translatez(286px);">5</figure>
<figure style="opacity: 1; background-color: rgba(0, 169, 255, 0.8); transform: rotatey(200deg) translatez(286px);">6</figure>
<figure style="opacity: 1; background-color: rgba(0, 0, 255, 0.8); transform: rotatey(240deg) translatez(286px);">7</figure>
<figure style="opacity: 1; background-color: rgba(170, 0, 255, 0.8); transform: rotatey(280deg) translatez(286px);">8</figure>
<figure style="opacity: 1; background-color: rgba(255, 0, 169, 0.8); transform: rotatey(320deg) translatez(286px);">9</figure>
<figure style="opacity: 0; transform: none;">10</figure>
<figure style="opacity: 0; transform: none;">11</figure>
<figure style="opacity: 0; transform: none;">12</figure>
<figure style="opacity: 0; transform: none;">13</figure>
<figure style="opacity: 0; transform: none;">14</figure>
<figure style="opacity: 0; transform: none;">15</figure>
<figure style="opacity: 0; transform: none;">16</figure>
<figure style="opacity: 0; transform: none;">17</figure>
<figure style="opacity: 0; transform: none;">18</figure>
<figure style="opacity: 0; transform: none;">19</figure>
<figure style="opacity: 0; transform: none;">20</figure>
</div>
</section>
<section id="options">
<p>
<label for="panel-count">个数</label>
<input id="panel-count" value="9" min="3" max="20" type="range">
<span class=" range-display"></span></p>
<p id="navigation">
<button id="previous" data-increment="-1">上一页</button>
<button id="next" data-increment="1">下一页</button>
</p>
<p>
<button id="toggle-axis">横竖切换</button>
</p>
<p>
<button id="toggle-backface-visibility">背面可见切换</button>
</p>
</section>
</div>
<script src="http://www.htmleaf.com/pins/1412/201502062108/js/utils.js"></script>
<script>
var transformprop = modernizr.prefixed('transform');
function carousel3d ( el ) {
this.element = el;
this.rotation = 0;
this.panelcount = 0;
this.totalpanelcount = this.element.children.length;
this.theta = 0;
this.ishorizontal = true;
}
carousel3d.prototype.modify = function() {
var panel, angle, i;
this.panelsize = this.element[ this.ishorizontal ? 'offsetwidth' : 'offsetheight' ];
this.rotatefn = this.ishorizontal ? 'rotatey' : 'rotatex';
this.theta = 360 / this.panelcount;
// do some trig to figure out how big the carousel
// is in 3d space
this.radius = math.round( ( this.panelsize / 2) / math.tan( math.pi / this.panelcount ) );
for ( i = 0; i < this.panelcount; i++ ) {
panel = this.element.children[i];
angle = this.theta * i;
panel.style.opacity = 1;
panel.style.backgroundcolor = 'hsla(' + angle + ', 100%, 50%, 0.8)';
// rotate panel, then push it out in 3d space
panel.style[ transformprop ] = this.rotatefn + '(' + angle + 'deg) translatez(' + this.radius + 'px)';
}
// hide other panels
for ( ; i < this.totalpanelcount; i++ ) {
panel = this.element.children[i];
panel.style.opacity = 0;
panel.style[ transformprop ] = 'none';
}
// adjust rotation so panels are always flat
this.rotation = math.round( this.rotation / this.theta ) * this.theta;
this.transform();
};
carousel3d.prototype.transform = function() {
// push the carousel back in 3d space,
// and rotate it
this.element.style[ transformprop ] = 'translatez(-' + this.radius + 'px) ' + this.rotatefn + '(' + this.rotation + 'deg)';
};
var init = function() {
var carousel = new carousel3d( document.getelementbyid('carousel') ),
panelcountinput = document.getelementbyid('panel-count'),
axisbutton = document.getelementbyid('toggle-axis'),
navbuttons = document.queryselectorall('#navigation button'),
onnavbuttonclick = function( event ){
var increment = parseint( event.target.getattribute('data-increment') );
carousel.rotation += carousel.theta * increment * -1;
carousel.transform();
};
// populate on startup
carousel.panelcount = parseint( panelcountinput.value, 10);
carousel.modify();
axisbutton.addeventlistener( 'click', function(){
carousel.ishorizontal = !carousel.ishorizontal;
carousel.modify();
}, false);
panelcountinput.addeventlistener( 'change', function( event ) {
carousel.panelcount = event.target.value;
carousel.modify();
}, false);
for (var i=0; i < 2; i++) {
navbuttons[i].addeventlistener( 'click', onnavbuttonclick, false);
}
document.getelementbyid('toggle-backface-visibility').addeventlistener( 'click', function(){
carousel.element.toggleclassname('panels-backface-invisible');
}, false);
settimeout( function(){
document.body.addclassname('ready');
}, 0);
};
window.addeventlistener( 'domcontentloaded', init, false);
</script>
<p id="disclaimer">对不起,你的浏览器不支持css 3d transforms。</p>
</body></html>
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