jquery - 在悬停时创建 CSS 'path'

Question

我正在尝试使用(主要)CSS 生成一个“漂亮”的 CSS 菜单，但有一个微小位的 jQuery还有:

我的总体思路是:

+------------------------+
|                        |
|                        |
|         +---+          |
|         |   |          |
|         |___|          | <-- Hover this center piece
|                        |
|                        |
|                        |
+------------------------+

+------------------------+
|     _                  |
|    |\                  | <-- All start moving up to top of screen
|      \  +---+          |
|         |   |          |
|         |___|          |
|                        |
|                        |
|                        |
+------------------------+

+------------------------+
| +---+                  |
| |   |                  |
| |___|                  |
|                        |
|  || All, but one       |
|  || moves down         |
|  \/                    |
|                        |
+------------------------+

+------------------------+
| +---+                  |
| |   |                  |
| |___|                  |
|                        |
|        One stays,      |
| +---+  the rest move this way
| |   |  --->            |
| |___|                  |
+------------------------+

+------------------------+
| +---+                  |
| |   |                  |
| |___|              ^   | The rest move up
|                    |   |
|                    |   |
| +---+            +---+ |
| |   |            |   | |
| |___|            |___| |<-- Another stays
+------------------------+

完成:

+------------------------+
| +---+            +---+ |
| | 1 |            | 4 | |
| |___|            |___| |
|                        |
|                        |
| +---+            +---+ |
| | 2 |            | 3 | |
| |___|            |___| |
+------------------------+

但是，这假定将有四个 div 子级，所以我试图在 jQuery 中生成一种“确定 Angular/位置”的方法(老实说，效果不太好)。

---

类似的设计:

---

所以最后，由于有四个 div，它们与中心的间隔为 90 度(360/4 div = 相隔 90 度)。

假设有六个子 div；

360/6 = 60 degrees

因此它们将以 60 度的间隔均匀分布。

---

我也会在它们之间添加动画，所以我一直在玩旋转等等，但我似乎无法掌握它:

我当前的样本是:

$(".wrap").hover(function(){
    var x =$(this).children().length; //Counts '.circles'
    var degree = 360 / x; //Gets angle
    var percent = 100 / x;
    var curPercent = percent;
    $(this).children().each(function (index) {
        $(this).css("transform","rotate(" + degree*index + "deg)");
        $(this).css("top",percent + "px");
        $(this).css("left",percent + "px");

        percent = percent + curPercent;
    });
});

.wrap{
    height: 300px;
    width: 300px;
    background: red;
    position: relative;
    transform-origin: center center;
    transition: all 0.8s;
}
.wrap:hover .circle{
    top: 0;
    left: 0;
}
.circle{
    transition: all 0.8s;
    position: absolute;
    height: 50px;
    width: 50px;
    top: calc(50% - 25px);
    left: calc(50% - 25px);
    background: tomato;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap">
    <div class="circle">1</div>
    <div class="circle">2</div>
    <div class="circle">3</div>
    <div class="circle">4</div>
</div>

Fiddle

---

有人会:

• (A):知道如何让 div 相对于 jQuery 代码中指定的父级“旋转”指定的 Angular 或距离吗？

• (B):让“动画”在悬停时重置？

• (C)​​: 知道我在说什么吗？

---

类似的实现(虽然不完全):

• Here
• This more so - 但这使用 Sass (不想要)

Answer 1

使用不同的方法，您会得到略有不同的效果。您可以使用 setTimeout 和 transition 的时间来修改行为。

See the fiddle

+ function() {
  var to;
  $(".wrap").on('mouseenter', function() {
    var circles = $(this).children();
    var degree = (2 * Math.PI) / circles.length; //calc delta angle
    var transforms = [];

    // Calculate the position for each circle
    circles.each(function(index) {
        var x = 100 * Math.cos(-0.5 * Math.PI + degree * (-1 * index - 0.5));
        var y = 100 * Math.sin(-0.5 * Math.PI + degree * (-1 * index - 0.5));

      transforms.push('translate(' + x + 'px,' + y + 'px)');
    });

    // Function to moves all the circles
    // We'll pop a circle each time and than call this function recursively
    function moveCircles() {
      var transform = transforms.shift();
      circles.css('transform', transform);

      circles.splice(0, 1);
      if (circles.length) to = setTimeout(moveCircles, 400);
    }

    moveCircles();
  });

  $(".wrap").on('mouseleave', function() {
    var circles = $(this).children().css('transform', '');
    clearTimeout(to);
  });
}();

   .wrap {
     height: 300px;
     width: 300px;
     background: red;
     position: relative;
     transform-origin: center center;
     transition: all 0.8s;
   }
   .circle {
     transition: all 0.8s;
     position: absolute;
     height: 50px;
     width: 50px;
     text-align: center;
     line-height: 50px;
     top: calc(50% - 25px);
     left: calc(50% - 25px);
     background: tomato;
     border-radius: 50%;
   }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="wrap">
  <div class="circle">1</div>
  <div class="circle">2</div>
  <div class="circle">3</div>
  <div class="circle">4</div>
  <div class="circle">5</div>
  <div class="circle">6</div>
</div>