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jQuery css3带宽测速仪表盘特效

jQuery css3带宽测速仪表盘特效

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jQuery css3带宽测速仪表盘特效
jQuery基于css3 transform属性制作黑色酷炫的网络带宽测速圆形仪表盘计速特效。

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使用方法:

1、head引入css文件

<link type="text/css" href="css/style.css" rel="stylesheet" />

2、head引入js文件

<script type="text/javascript" src="js/jquery.min.js"></script>

3、body引入HTML代码

<section class="speedometer-container">
  <div class="speedometer">
    <div class="inner-ring"></div>
    <div class="outer-ring"><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span><span class="tick"></span>
    </div>
    <div class="digit-ring"><span class="digit">0</span><span class="digit">20</span><span class="digit">40</span><span class="digit">60</span><span class="digit">80</span><span class="digit">100</span><span class="digit">120</span><span class="digit">140</span><span class="digit">160</span>
    </div>
    <div class="details">
      <p class="label">下载速度</p>
      <p class="speed">87.3</p>
      <p class="unit">Mbps</p>
    </div>
    <div class="progress"></div>
    <button class="retry-button">重试</button>
    <footer>
      <div class="stat">
        <label>响应</label>
        <p>2ms</p>
      </div>
      <div class="stat">
        <label>上传</label>
        <p>67.7 Mbps</p>
      </div>
    </footer>
  </div>
  <div class="overlay"></div>
</section>

<script type="text/javascript">
var ticks = $('.tick');
var digits = $('.digit');
var details = $('.details');
var progress = $('.progress');

var outerRingRadius = 164;
var digitRingRadius = 145;


ticks.each(function (i) {
  var angle = 210 - i * 5;
  var theta = deg2rad(angle);
  var radius = outerRingRadius + (i % 6 ? 0 : 4);
  var x = Math.cos(theta) * radius;
  var y = Math.sin(theta) * -radius;
  var transform = [
  `translate(${x}px, ${y}px)`,
  `rotate(${-angle}deg)`].
  join(' ');
  $(this).css({
    '-webkit-transform': transform,
    '-moz-transform': transform,
    'transform': transform });

});

digits.each(function (i) {
  var angle = 210 - i * 30;
  var theta = deg2rad(angle);
  var x = Math.cos(theta) * digitRingRadius;
  var y = Math.sin(theta) * -digitRingRadius;
  $(this).css({
    '-webkit-transform': `translate(${x}px, ${y}px)`,
    '-moz-transform': `translate(${x}px, ${y}px)`,
    'transform': `translate(${x}px, ${y}px)` });

});

$('.retry-button').on('click', function () {
  statValueCurrent = 0;
  updateDetails();
});


var frameCount = 100;
var frameInterval = 0.3;
var digitValueMax = 160;
var statValueMax = 87.3;
var statValueCurrent = 0;
var statValueInterval = statValueMax / frameCount;

updateDetails();


function updateDetails() {
  if (statValueCurrent.toFixed(1) > statValueMax) {
    return;
  }
  setStatValue(statValueCurrent.toFixed(1));
  statValueCurrent += statValueInterval;
  setTimeout(updateDetails, frameInterval);
}


function setStatValue(value) {
  var angle = -120 + 240 * (value / digitValueMax);
  progress.css({
    'transform': `rotate(${angle}deg)` });

  details.find('.speed').text(value);
}


function deg2rad(angle) {
  return angle * (Math.PI / 180);
}


function rad2deg(angle) {
  return angle * (180 / Math.PI);
}
</script>

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