jQuery挂在墙上的钟表
【前言】
分享个特效,jQuery挂在墙上的钟表。原理很简单,注意点:①transform-origin 属性设置旋转元素的基点位置;transform转换;
效果图:
【主体】
<!DOCTYPE html> <html > <head> <meta charset="UTF-8"> <title>jQuery挂在墙上的圆盘时钟动画特效</title> <link rel="stylesheet" href="css/style.css"> <script src="js/prefixfree.min.js"></script> </head> <body> <div class="support"></div> <div class="clock"> <div class="numbers"> <ul> <li>12</li> <li>3</li> <li>6</li> <li>9</li> </ul> </div> <div class="clockwise"> <div class="center"></div> <div class="hand-second" id="analogsecond"></div> <div class="hand-minute" id="analogminute"></div> <div class="hand-hour" id="analoghour"></div> </div> </div> <script src='js/jquery.min.js'></script> <script src="js/index.js"></script> </body> </html>
*, *:before, *:after { box-sizing: border-box; } html { height:100%; } body { background: radial-gradient(center center, circle cover, #c9c2b6, #7a726f); background: -moz-radial-gradient(center center, circle cover, #c9c2b6 0%, #7a726f 100%); background: -webkit-radial-gradient(center center, circle cover, #c9c2b6 0%, #7a726f 100%); font-family: Arial, helvetica, 'sans'; } .clock { width:193px; height:193px; border-radius:50%; margin:auto; position:absolute; top:0; right:0; bottom:0; left:0; background:#f0f1e9; box-shadow: 0 10px 20px rgba(0,0,0,0.2), inset 0 3px 0 rgba(255,255,255,0.5), inset 0 -4px 0 rgba(0,0,0,0.1), 0 2px 5px rgba(0,0,0,0.2); /* background: linear-gradient(top, #f0f1e9, #f0f1e9 100%);*/ } .clock::before { content:''; width:130px; height:130px; position:absolute; margin:auto; top:0; right:0; bottom:0; left:0; border-radius:50%; background: -webkit-linear-gradient(top, #e9eae2, #f5f5ec 100%); background: -moz-linear-gradient(top, #e9eae2, #f5f5ec 100%); background: linear-gradient(top, #e9eae2, #f5f5ec 100%); } .numbers, clockwise { width:100%; height:100%; border-radius:50%; } .numbers ul { list-style:none; } .numbers ul li { position:absolute; width:1.5em; height:1.5em; text-align:center; line-height:1.5em; font-size:1.3em; color:#a5a595; } .numbers ul li:first-child { top:0; left:50%; margin-left:-0.75em; } .numbers ul li:nth-child(2){ top:50%; right:0; margin-top:-0.75em; } .numbers ul li:nth-child(3){ left:50%; bottom:0; margin-left:-0.75em; } .numbers ul li:last-child{ top:50%; left:0; margin-top:-0.75em; } .clockwise .center, .support { position:absolute; width:10px; height:10px; border-radius:50%; background: radial-gradient(center center, circle , #ffffff, #837874 97%, #b4b2aa 100%); background: -moz-radial-gradient(center center, circle,#ffffff, #837874 97%, #b4b2aa 100%); background: -webkit-radial-gradient(center center, circle , #ffffff, #837874 97%, #b4b2aa 100%); background-position:50% -12px; box-shadow: 0 3px 5px rgba(0,0,0,0.3); } .clockwise .center { left:50%; margin-left:-5px; top:50%; margin-top:-5px; z-index:5; } .support { margin:auto; top:-260px; right:0; bottom:0; left:0; box-shadow: 0 5px 5px rgba(0,0,0,0.4), 0 -1px 2px rgba(0,0,0,0.3); } .support::before { content:''; width:4px; height:100px; background:#fff; position:absolute; z-index:-1; transform:rotate(38deg); transform-origin:50% 0%; top:5px; left:3px; background: linear-gradient(left, #f3f3f3, #fff); box-shadow: 4px 3px 3px rgba(0,0,0,0.2), inset 1px 0 4px rgba(0,0,0,0.2); } .support::after { content:''; width:4px; height:100px; background:#fff; position:absolute; z-index:-1; transform:rotate(-38deg); transform-origin:50% 0%; top:5px; left:1px; background: linear-gradient(left, #f3f3f3, #fff); box-shadow: -2px 3px 3px rgba(0,0,0,0.2), inset 1px 0 4px rgba(0,0,0,0.2); } [class*="hand-"] { border-radius: 100% 100% 5px 5px; box-shadow: 0 0 0.5em rgba(black,0.2); left: 50%; position: absolute; top: 50%; z-index: 4; box-shadow:0 5px 5px rgba(0,0,0,0.3); } .hand-second { width: 2px; top: 18px; height: 78px; background:#f16e54; transform-origin: 50% 100%; } .hand-minute { width: 6px; top:26px; margin-left:-3px; height: 88px; background:#68645b; transform-origin: 50% 80%; } .hand-hour { width: 6px; top: 56px; transform-origin: 50% 40px; margin-left:-3px; height: 50px; background:#68645b; }
var oClockAnalog = { aSecond: [], dtDate: new Date(), iCurrSecond: -1, iHourRotation: -1, iMinuteRotation: -1, iStepSize: 10, iTimerAnimate: setInterval("oClockAnalog.fAnimate()", 20), iTimerUpdate: setInterval("oClockAnalog.fUpdate()", 1000), fAnimate: function() { if (this.aSecond.length > 0) { this.fRotate("analogsecond", this.aSecond[0]); this.aSecond = this.aSecond.slice(1); } }, fGetHour: function() { var iHours = this.dtDate.getHours(); if (iHours > 11) { iHours -= 12; } return Math.round((this.dtDate.getHours() * 30) + (this.dtDate.getMinutes() / 2) + (this.dtDate.getSeconds() / 120)); }, fGetMinute: function() { return Math.round((this.dtDate.getMinutes() * 6) + (this.dtDate.getSeconds() / 10)); }, fInit: function() { this.iHourRotation = this.fGetHour(); this.fRotate("analoghour", this.iHourRotation); this.iMinuteRotation = this.fGetMinute(); this.fRotate("analogminute", this.iMinuteRotation); this.iCurrSecond = this.dtDate.getSeconds(); this.fRotate("analogsecond", (6 * this.iCurrSecond)); }, fRotate: function(sID, iDeg) { var sCSS = ("rotate(" + iDeg + "deg)"); $("#" + sID).css({ '-moz-transform': sCSS, '-o-transform': sCSS, '-webkit-transform': sCSS }); }, fStepSize: function(iTo, iFrom) { var iAnimDiff = (iFrom - iTo); if (iAnimDiff > 0) { iAnimDiff -= 360; } return iAnimDiff / this.iStepSize; }, fUpdate: function() { // update time this.dtDate = new Date(); // hours var iTemp = this.fGetHour(); if (this.iHourRotation != iTemp) { this.iHourRotation = iTemp; this.fRotate("analoghour", iTemp); } // minutes iTemp = this.fGetMinute(); if (this.iMinuteRotation != iTemp) { this.iMinuteRotation = iTemp; this.fRotate("analogminute", iTemp); } // seconds if (this.iCurrSecond != this.dtDate.getSeconds()) { var iRotateFrom = (6 * this.iCurrSecond); this.iCurrSecond = this.dtDate.getSeconds(); var iRotateTo = (6 * this.iCurrSecond); // push steps into array var iDiff = this.fStepSize(iRotateTo, iRotateFrom); for (var i = 0; i < this.iStepSize; i++) { iRotateFrom -= iDiff; this.aSecond.push(Math.round(iRotateFrom)); } } } }; ClockInit();
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