CSS 动画改变元素位置

CSS Animation changes the element position

我在一个圆里面有一个六边形。

查看初始场景:https://jsfiddle.net/njzwfvpf/

现在我想添加一个在圆内旋转六边形 360 度的动画

这是带有 css 动画的现有场景 (fiddle here):

.rotate {
  -webkit-animation: rotating 3s cubic-bezier(0, 0, 1, 1) infinite alternate;
          animation: rotating 3s cubic-bezier(0, 0, 1, 1) infinite alternate;
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
}
@-webkit-keyframes rotating {
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
<svg width="350" height="350">
  <svg width="350" height="350">
    <circle cx="230.00591443779982" cy="155.55555555555554" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="100" cy="155.55555555555554" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="180.41237113402062" cy="155.55555555555554" r="50" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="165.0943396226415" cy="120.27491408934708" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="165.0943396226415" cy="200" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <svg viewBox="0 0 600 720" width="295" height="205">
      <g transform="translate(239, 370)" class="rotate">
        <path></path>
        <path d="M 175 0 L 326.55444566227675 87.50000000000001 L 326.55444566227675 262.5 L 175 350 L 23.445554337723223 262.5 L 23.44555433772325 87.49999999999999" style="opacity: 0.4; fill: black;"></path>
      </g>
      <svg viewBox="0 0 600 720" width="507.4" height="799.5">
        <g transform="translate(105, 395)">
          <path d="M 175 0 L 341.43489035165186 120.9220259843842 L 277.8624191511828 316.57797401561584 L 72.13758084881722 316.57797401561584 L 8.565109648348141 120.92202598438415" style="opacity: 0.4; fill: black;"></path>
        </g>
      </svg>
    </svg>
  </svg>
</svg>

问题是添加动画六边形改变了它的位置,它不再在圆圈内了。

我做错了什么?我该如何解决?

您面临的问题是,您正在使用 CSS (rotate(360deg)) 应用变换,而您已经对同一元素进行了变换在 SVG (translate(239, 370)) 中。您可以通过 2 种方法解决此问题:

  1. 使用 CSS 应用所有变换,以便您可以使用 CSS[=34 控制动画=]
  2. 在子元素(六边形)上应用CSS动画

下面是如何使用第二种方法解决问题的示例:

.rotate {
  -webkit-animation: rotating 3s cubic-bezier(0, 0, 1, 1) infinite alternate;
          animation: rotating 3s cubic-bezier(0, 0, 1, 1) infinite alternate;
  -webkit-transform-origin: 50% 50%;
          transform-origin: 50% 50%;
}
@-webkit-keyframes rotating {
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
<svg width="350" height="350">
  <svg width="350" height="350">
    <circle cx="230.00591443779982" cy="155.55555555555554" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="100" cy="155.55555555555554" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="180.41237113402062" cy="155.55555555555554" r="50" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="165.0943396226415" cy="120.27491408934708" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <circle cx="165.0943396226415" cy="200" r="45" style="stroke: rgb(158, 157, 158); stroke-width: 1; fill: none;"></circle>
    <svg viewBox="0 0 600 720" width="295" height="205">
      <g transform="translate(239, 370)">
        <path></path>
        <path class="rotate" d="M 175 0 L 326.55444566227675 87.50000000000001 L 326.55444566227675 262.5 L 175 350 L 23.445554337723223 262.5 L 23.44555433772325 87.49999999999999" style="opacity: 0.4; fill: black;"></path>
      </g>
      <svg viewBox="0 0 600 720" width="507.4" height="799.5">
        <g transform="translate(105, 395)">
          <path d="M 175 0 L 341.43489035165186 120.9220259843842 L 277.8624191511828 316.57797401561584 L 72.13758084881722 316.57797401561584 L 8.565109648348141 120.92202598438415" style="opacity: 0.4; fill: black;"></path>
        </g>
      </svg>
    </svg>
  </svg>
</svg>