Question

我正试图为SVG的外环设置动画。由于它没有填充圆圈，我无法更改元素并使用cx和cy拼出它，然后通过代码中的animateTransform更改它。我＆＃39;试图做的是外环＆＃34;脉冲＆＃34;从100％下降到80％然后回到100％。我可以让整个SVG动画改变比例=＆＃34; 1 1＆＃34;缩放=＆＃34; .8 .8＆＃34;但是它可以扩展整个SVG和左上角。关于如何动画外圈的任何想法？我使用Illustrator生成我的SVG，它不会使SVG变得干净。非常感谢任何帮助。

    <?xml version="1.0" encoding="utf-8"?>
<!-- Generator: Adobe Illustrator 18.1.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 50 50" enable-background="new 0 0 50 50" xml:space="preserve">
<g>
    <g>
        <path fill="#00AEEF" d="M4.5,25.1c0-1.9,0.3-3.7,0.7-5.4c0.5-1.7,1.2-3.4,2.1-4.9s2-2.9,3.2-4.2s2.6-2.3,4.2-3.2
            c1.5-0.9,3.2-1.6,4.9-2.1c1.8-0.5,3.6-0.8,5.4-0.8c1.9,0,3.7,0.2,5.4,0.7c1.8,0.6,3.4,1.3,4.9,2.2s2.9,2,4.2,3.2
            c1.3,1.3,2.3,2.6,3.2,4.2c0.9,1.5,1.6,3.1,2.1,4.9c0.5,1.7,0.7,3.5,0.7,5.4s-0.2,3.7-0.7,5.4c-0.5,1.7-1.2,3.4-2.1,4.9
            c-0.9,1.5-2,2.9-3.2,4.2c-1.3,1.2-2.7,2.2-4.2,3.1s-3.2,1.6-4.9,2.1c-1.7,0.5-3.5,0.7-5.4,0.7s-3.7-0.2-5.4-0.7
            c-1.7-0.5-3.4-1.2-4.9-2.1c-1.5-0.9-2.9-2-4.2-3.2c-1.2-1.3-2.3-2.6-3.2-4.1s-1.6-3.1-2.1-4.9C4.8,28.7,4.5,26.9,4.5,25.1z
             M6.4,25c0,1.7,0.2,3.3,0.7,4.9C7.5,31.5,8.2,33,9,34.3c0.8,1.4,1.8,2.6,2.9,3.8c1.1,1.1,2.4,2.1,3.8,2.9c1.4,0.8,2.9,1.4,4.4,1.9
            c1.6,0.4,3.2,0.7,4.9,0.7c1.7,0,3.3-0.2,4.9-0.7c1.6-0.4,3.1-1.1,4.4-1.9c1.4-0.8,2.6-1.8,3.8-2.9c1.1-1.1,2.1-2.4,2.9-3.8
            c0.8-1.4,1.4-2.9,1.9-4.4c0.5-1.6,0.7-3.2,0.7-4.9c0-1.7-0.2-3.3-0.7-4.9S41.8,17,41,15.7c-0.8-1.4-1.8-2.6-2.9-3.8
            C37,10.8,35.7,9.8,34.3,9s-2.9-1.4-4.4-1.9c-1.6-0.5-3.2-0.7-4.9-0.7c-2.5,0-4.9,0.5-7.2,1.5s-4.2,2.3-5.9,4c-1.7,1.7-3,3.7-4,5.9
            C6.9,20.1,6.4,22.5,6.4,25z"/>
    </g>
    <path id="pattern_3_" fill="#00AEEF" d="M15,35h10v-1.4H15V35z M16.4,15H15v10h1.4V15z M15,31.4h10V30H15V31.4z M15,27.9h10v-1.4
        H15V27.9z M23.6,15h-1.4v10h1.4V15z M20,15h-1.4v10H20V15z M25,15v1.4h10V15H25z M25,20h10v-1.4H25V20z M25,23.6h10v-1.4H25V23.6z
         M30,35h1.4V25H30V35z M33.6,35H35V25h-1.4V35z M26.4,35h1.4V25h-1.4V35z"/>
</g>
</svg>

Answer 1

最简单的解决方案是将外圈转换回粗线。等效的圆圈是：

<circle cx="25" cy="25" r="19.5" stroke-width="2" fill="none" stroke="#00AEEF"/>

然后你可以设置半径的动画。

<circle cx="25" cy="25" r="19.5" stroke-width="2" fill="none" stroke="#00AEEF">
    <animate attributeName="r" values="19.5; 15.6; 19.5" dur="1s" repeatCount="indefinite"/>
</circle>

最终的工作演示如下：

<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 50 50" enable-background="new 0 0 50 50" xml:space="preserve">
<g>
    <g>
        <circle cx="25" cy="25" r="19.5" stroke-width="2" fill="none" stroke="#00AEEF">
            <animate attributeName="r" values="19.5; 15.6; 19.5" dur="1s" repeatCount="indefinite"/>
        </circle>
    </g>
    <path id="pattern_3_" fill="#00AEEF" d="M15,35h10v-1.4H15V35z M16.4,15H15v10h1.4V15z M15,31.4h10V30H15V31.4z M15,27.9h10v-1.4
        H15V27.9z M23.6,15h-1.4v10h1.4V15z M20,15h-1.4v10H20V15z M25,15v1.4h10V15H25z M25,20h10v-1.4H25V20z M25,23.6h10v-1.4H25V23.6z
         M30,35h1.4V25H30V35z M33.6,35H35V25h-1.4V35z M26.4,35h1.4V25h-1.4V35z"/>
</g>
</svg>

Answer 2

使用css转换动画很容易做到这一点。如果需要，请插入'-webkit-'，' - moz-'和'-ms-'前缀。

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(0.8);
    }
}
#ring {
    animation-name: pulse;
    animation-duration: 0.5s;
    animation-iteration-count: infinite;
    animation-direction: alternate-reverse;
    transform-origin: center;
}

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 50 50">
    <path id="ring" fill="#00AEEF" d="M4.5,25.1c0-1.9,0.3-3.7,0.7-5.4c0.5-1.7,1.2-3.4,2.1-4.9s2-2.9,3.2-4.2s2.6-2.3,4.2-3.2
            c1.5-0.9,3.2-1.6,4.9-2.1c1.8-0.5,3.6-0.8,5.4-0.8c1.9,0,3.7,0.2,5.4,0.7c1.8,0.6,3.4,1.3,4.9,2.2s2.9,2,4.2,3.2
            c1.3,1.3,2.3,2.6,3.2,4.2c0.9,1.5,1.6,3.1,2.1,4.9c0.5,1.7,0.7,3.5,0.7,5.4s-0.2,3.7-0.7,5.4c-0.5,1.7-1.2,3.4-2.1,4.9
            c-0.9,1.5-2,2.9-3.2,4.2c-1.3,1.2-2.7,2.2-4.2,3.1s-3.2,1.6-4.9,2.1c-1.7,0.5-3.5,0.7-5.4,0.7s-3.7-0.2-5.4-0.7
            c-1.7-0.5-3.4-1.2-4.9-2.1c-1.5-0.9-2.9-2-4.2-3.2c-1.2-1.3-2.3-2.6-3.2-4.1s-1.6-3.1-2.1-4.9C4.8,28.7,4.5,26.9,4.5,25.1z
             M6.4,25c0,1.7,0.2,3.3,0.7,4.9C7.5,31.5,8.2,33,9,34.3c0.8,1.4,1.8,2.6,2.9,3.8c1.1,1.1,2.4,2.1,3.8,2.9c1.4,0.8,2.9,1.4,4.4,1.9
            c1.6,0.4,3.2,0.7,4.9,0.7c1.7,0,3.3-0.2,4.9-0.7c1.6-0.4,3.1-1.1,4.4-1.9c1.4-0.8,2.6-1.8,3.8-2.9c1.1-1.1,2.1-2.4,2.9-3.8
            c0.8-1.4,1.4-2.9,1.9-4.4c0.5-1.6,0.7-3.2,0.7-4.9c0-1.7-0.2-3.3-0.7-4.9S41.8,17,41,15.7c-0.8-1.4-1.8-2.6-2.9-3.8
            C37,10.8,35.7,9.8,34.3,9s-2.9-1.4-4.4-1.9c-1.6-0.5-3.2-0.7-4.9-0.7c-2.5,0-4.9,0.5-7.2,1.5s-4.2,2.3-5.9,4c-1.7,1.7-3,3.7-4,5.9
            C6.9,20.1,6.4,22.5,6.4,25z" />
    <path id="pattern_3_" fill="#00AEEF" d="M15,35h10v-1.4H15V35z M16.4,15H15v10h1.4V15z M15,31.4h10V30H15V31.4z M15,27.9h10v-1.4
        H15V27.9z M23.6,15h-1.4v10h1.4V15z M20,15h-1.4v10H20V15z M25,15v1.4h10V15H25z M25,20h10v-1.4H25V20z M25,23.6h10v-1.4H25V23.6z
         M30,35h1.4V25H30V35z M33.6,35H35V25h-1.4V35z M26.4,35h1.4V25h-1.4V35z" />
</svg>

通过添加一些额外的元素来隔离动画，模仿transform-origin的功能，也可以在Firefox中实现这一功能。请参阅fiddle。

SVG动画在图标外面的一个圆环上

2 个答案: