javascript - 如何使用 SMIL/CSS 在饼图/圆环图中按顺序设置多个 SVG 路径的动画

标签 javascript css animation svg smil

我有一个 svg 组，其中包含一系列路径，这些路径代表饼图的不同区域，这些路径由圆形标记覆盖，图形显示为圆环图。

<svg width="71" height="70" xmlns="http://www.w3.org/2000/svg">
    <g class="graph-arc" transform="translate(1,1)">
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        <path stroke="#39ADB4" fill="#39ADB4" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(373.5, 34.5, 34.5)"></path>
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        <path stroke="#3DB8AE" fill="#3DB8AE" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(400.5, 34.5, 34.5)"></path>
        <path stroke="#3DB8AE" fill="#3DB8AE" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(414, 34.5, 34.5)"></path>
        <path stroke="#3EBDAD" fill="#3EBDAD" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(427.5, 34.5, 34.5)"></path>
        <path stroke="#40C3AA" fill="#40C3AA" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(441, 34.5, 34.5)"></path>
        <path stroke="#40C3AA" fill="#40C3AA" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(454.5, 34.5, 34.5)"></path>
        <path stroke="#00c8a8" fill="#00c8a8" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(468, 34.5, 34.5)"></path>
        <path stroke="#00c8a8" fill="#00c8a8" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55386505302874, 0.9532377462801749 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(481.5, 34.5, 34.5)"></path>
        <path stroke="#e5e5e5" fill="#e5e5e5" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 34.5, 0 z" xmlns="http://www.w3.org/2000/svg" transform="rotate(495, 34.5, 34.5)"></path>
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    <circle r="25.875" cx="35.5" cy="35.5" fill="#fff"></circle> . 
</svg>

我希望整体效果是这样的:https://codepen.io/seanstopnik/pen/GqHng

有很多使用 stroke-dasharray 作为线条的例子，但我还没有找到任何可以为多条路径设置动画的东西!执行此操作的最佳方法是什么？

最佳答案

按照常规方法，您没有要设置动画的笔划。所以你可以做的是将动画描边线变成一个蒙版。然后将该面具应用于更复杂的形状。

#progress circle {
  animation: do-progress 4s infinite;
}

@keyframes do-progress {
    0% { stroke-dashoffset: 0px; }
   50% { stroke-dashoffset: -146px; }
  100% { stroke-dashoffset: 0px; }
}
<svg width="71" height="70" xmlns="http://www.w3.org/2000/svg">
    <defs>
        <mask id="progress" maskUnits="userSpaceOnUse">
            <rect x="-1" y="-1" width="100%" height="100%" fill="#fff"/>
            <circle r="30.5" cx="34.5" cy="34.5" fill="none" stroke="#000" stroke-width="10" stroke-dasharray="146 192" transform="rotate(-227, 34.5, 34.5)"/>
        </mask>
    </defs>
    <g class="graph-arc" transform="translate(1,1)" mask="url(#progress)">
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        <path stroke="#3A8DC3" fill="#3A8DC3" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(252, 34.5, 34.5)"/>
        <path stroke="#3593BF" fill="#3593BF" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55 0.95 z" transform="rotate(265.5, 34.5, 34.5)"/>
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        <path stroke="#359DBB" fill="#359DBB" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(306, 34.5, 34.5)"/>
        <path stroke="#36A3B9" fill="#36A3B9" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(319.5, 34.5, 34.5)"/>
        <path stroke="#36A3B9" fill="#36A3B9" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(333, 34.5, 34.5)"/>
        <path stroke="#38A8B6" fill="#38A8B6" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(346.5, 34.5, 34.5)"/>
        <path stroke="#39ADB4" fill="#39ADB4" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(360, 34.5, 34.5)"/>
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        <path stroke="#3BB3B2" fill="#3BB3B2" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(387, 34.5, 34.5)"/>
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        <path stroke="#40C3AA" fill="#40C3AA" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(441, 34.5, 34.5)"/>
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        <path stroke="#00c8a8" fill="#00c8a8" d="M 34.5,34.5 L34.5,0 A34.5,34.5 0 0,1 42.55, 0.95 z" transform="rotate(468, 34.5, 34.5)"/>
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    </g>
    <circle r="25.875" cx="35.5" cy="35.5" fill="#fff"/>
</svg>

关于javascript - 如何使用 SMIL/CSS 在饼图/圆环图中按顺序设置多个 SVG 路径的动画，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/54644677/

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