由旋转刻度盘组成的JS动画时钟

来源:https://www.sucaihuo.com/js/2517.html 2017-07-23 23:31浏览(1007) 收藏

一款由旋转刻度盘组成的JS动画时钟特效,整体的风格类似一个旋转的罗盘,把时分秒分成6个段分别放在不同的圆环内,通过最外围的秒数字旋转来改变事件,整体效果非常的大气和新颖,喜欢的童鞋请收下吧。
由旋转刻度盘组成的JS动画时钟
分类:日期时间 > 计时器 难易:初级
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页面的head部分,仅需引入一个CSS样式文件即可,代码如下:

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

页面的body部分,时分秒的6个分段包括了0到9的不同数字,分别放入不同的div容器里即可,代码如下:

<div class="container">
  <!-- Hours -->
  <div class="spinner" id="spinner_h1">
    <div class="num num_0" id="num_0_h1">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_h1">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_h1">
      <div>2</div>
    </div>
  </div>

  <div class="spinner" id="spinner_h2">
    <div class="num num_0" id="num_0_h2">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_h2">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_h2">
      <div>2</div>
    </div>
    <div class="num num_3" id="num_3_h2">
      <div>3</div>
    </div>
    <div class="num num_4" id="num_4_h2">
      <div>4</div>
    </div>
    <div class="num num_5" id="num_5_h2">
      <div>5</div>
    </div>
    <div class="num num_6" id="num_6_h2">
      <div>6</div>
    </div>
    <div class="num num_7" id="num_7_h2">
      <div>7</div>
    </div>
    <div class="num num_8" id="num_8_h2">
      <div>8</div>
    </div>
    <div class="num num_9" id="num_9_h2">
      <div>9</div>
    </div>
  </div>

  <!-- Minutes -->

  <div class="spinner" id="spinner_m1">
    <div class="num num_0" id="num_0_m1">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_m1">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_m1">
      <div>2</div>
    </div>
    <div class="num num_3" id="num_3_m1">
      <div>3</div>
    </div>
    <div class="num num_4" id="num_4_m1">
      <div>4</div>
    </div>
    <div class="num num_5" id="num_5_m1">
      <div>5</div>
    </div>
  </div>

  <div class="spinner" id="spinner_m2">
    <div class="num num_0" id="num_0_m2">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_m2">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_m2">
      <div>2</div>
    </div>
    <div class="num num_3" id="num_3_m2">
      <div>3</div>
    </div>
    <div class="num num_4" id="num_4_m2">
      <div>4</div>
    </div>
    <div class="num num_5" id="num_5_m2">
      <div>5</div>
    </div>
    <div class="num num_6" id="num_6_m2">
      <div>6</div>
    </div>
    <div class="num num_7" id="num_7_m2">
      <div>7</div>
    </div>
    <div class="num num_8" id="num_8_m2">
      <div>8</div>
    </div>
    <div class="num num_9" id="num_9_m2">
      <div>9</div>
    </div>
  </div>

  <!-- Seconds -->

  <div class="spinner" id="spinner_s1">
    <div class="num num_0" id="num_0_s1">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_s1">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_s1">
      <div>2</div>
    </div>
    <div class="num num_3" id="num_3_s1">
      <div>3</div>
    </div>
    <div class="num num_4" id="num_4_s1">
      <div>4</div>
    </div>
    <div class="num num_5" id="num_5_s1">
      <div>5</div>
    </div>
  </div>

  <div class="spinner" id="spinner_s2">
    <div class="num num_0" id="num_0_s2">
      <div>0</div>
    </div>
    <div class="num num_1" id="num_1_s2">
      <div>1</div>
    </div>
    <div class="num num_2" id="num_2_s2">
      <div>2</div>
    </div>
    <div class="num num_3" id="num_3_s2">
      <div>3</div>
    </div>
    <div class="num num_4" id="num_4_s2">
      <div>4</div>
    </div>
    <div class="num num_5" id="num_5_s2">
      <div>5</div>
    </div>
    <div class="num num_6" id="num_6_s2">
      <div>6</div>
    </div>
    <div class="num num_7" id="num_7_s2">
      <div>7</div>
    </div>
    <div class="num num_8" id="num_8_s2">
      <div>8</div>
    </div>
    <div class="num num_9" id="num_9_s2">
      <div>9</div>
    </div>
  </div>
  <div class="top">&gt;</div>
</div>

页面的底部,纯javascript来响应数字的旋转、样式变化等各种事件,代码如下:

<script type="text/javascript">
//These functions help add, remove or toggle css classes
function tog_class(id, cl) {
  var elem = document.getElementById(id);
  if (elem == null) {
    return 0;
  }
  if (elem.classList.contains(cl) === true) {
    elem.classList.remove(cl);
  } else {
    elem.classList.add(cl);
  }
}

function add_class(id, cl) {
  var elem = document.getElementById(id);
  if (elem == null) {
    return 0;
  }
  if (elem.classList.contains(cl) !== true) {
    elem.classList.add(cl);
  }
}

function rem_class(id, cl) {
  var elem = document.getElementById(id);
  if (elem == null) {
    return 0;
  }
  if (elem.classList.contains(cl) === true) {
    elem.classList.remove(cl);
  }
}
//This function gets the date and does operations using H/M/S
function startTime() {
  var today = new Date();
  var h = today.getHours();
  var m = today.getMinutes();
  var s = today.getSeconds();

  var h1 = (h - h % 10) / 10;
  var h2 = h % 10;

  var m1 = (m - m % 10) / 10;
  var m2 = m % 10;

  var s1 = (s - s % 10) / 10;
  var s2 = s % 10;

  set_spin_class("s1", s1);
  set_spin_class("s2", s2);

  set_spin_class("m1", m1);
  set_spin_class("m2", m2);

  set_spin_class("h1", h1);
  set_spin_class("h2", h2);

  var t = setTimeout(startTime, 500);
}
//This function calls the appropriate class changes
// It receives the type of spinner to change (m1 for example) and changes classes based on the current time
function set_spin_class(target, val) {
  for (i = 0; i < 10; i++) {
    if (i != val) {
      rem_class("spinner_" + target, "spinner_" + target + "_" + i);
      rem_class("num_" + i + "_" + target, "lit");
    }
  }
  add_class("spinner_" + target, "spinner_" + target + "_" + val);
  add_class("num_" + val + "_" + target, "lit");

  if (val === 0) {
    deswitcher(target, val);
  } /*These functions prevent the clock from changing direction*/
  setTimeout(function() {
    switcher(target, val);
  }, 500);
}

function switcher(target, val) {
  switch ("spinner_" + target + "_" + val) {
    case "spinner_h1_2":
      rem_class("spinner_h1", "spinner_h1_2");
      add_class("spinner_h1", "spinner_h1_switch");
      break;
    case "spinner_h2_9":
      rem_class("spinner_h2", "spinner_h1_2");
      add_class("spinner_h2", "spinner_h2_switch");
      break;

    case "spinner_m1_5":
      rem_class("spinner_m1", "spinner_m1_5");
      add_class("spinner_m1", "spinner_m1_switch");
      break;
    case "spinner_m2_9":
      rem_class("spinner_m2", "spinner_m2_9");
      add_class("spinner_m2", "spinner_m2_switch");
      break;

    case "spinner_s1_5":
      rem_class("spinner_s1", "spinner_s1_5");
      add_class("spinner_s1", "spinner_s1_switch");
      break;
    case "spinner_s2_9":
      rem_class("spinner_s2", "spinner_s2_9");
      add_class("spinner_s2", "spinner_s2_switch");
      break;
  }
}
function deswitcher(target, val) {
  rem_class("spinner_" + target, "spinner_" + target + "_switch");
}
//Do stuff here
window.onload = function() {
  startTime();
};
</script>
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