C.H*_*ert 4 css animation svg css-animations svg-animate
我想知道如何使用 html5/css3 连续填写表单来创建加载图标(旋转器)。

填充应遵循红线 (3) 并在到达末端时保持形状相同的方向 (6) 如果它是一条细线,我可以使用假线动画,但如何使用较粗的形状来做到这一点像这样?
<svg version="1.1" id="Loader" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 255 255" style="enable-background:new 0 0 255 255; width: 255px; height: 255px" xml:space="preserve">
<g>
<path d="M169.9,73.6c9,6.2,15.3,14.9,20,23.3c4.7,8.3,7.1,17.2,7.1,26.7c0,4.9-0.7,9.6-2.1,14c-1.4,4.5-3.5,8.7-6.3,12.6
c-7.1,9.8-16.7,17.7-28.7,23.6c-12.1,5.9-24.7,8.9-37.8,8.9c-7.9,0-15.5-1.6-23-4.8c-7.5-3.2-14.2-7.8-20.1-13.7
c-5.8-6-10.4-12.6-13.5-20.1c-3.2-7.4-4.8-15-4.8-22.8c0-10.4,3.1-20.1,9.2-29.1c6.1-9,15.5-17.5,28-25.5c0,0,5.8-4.2,10.9-4.2
c5.1,0,11.1,3.1,6.6,10.3c-4.5,7.2-6.8,14.3-6.8,21.1c0,6.7,2.3,12.4,6.8,16.8c4.5,4.5,10.2,6.7,17,6.7c6.2,0,11.4-2.3,15.6-7
c4.1-4.7,6.2-10.6,6.2-17.7c0-4.9-1-9.5-3-13.7c-2-4.3-1.3-10.6,4.2-11.5C160.7,66.7,169.9,73.6,169.9,73.6z"/>
</g>
</svg>Run Code Online (Sandbox Code Playgroud)
主要思想是使用一条非常粗的线和不断变化的笔划短划线偏移。我用你的路径剪掉这条线。
为了更好地理解它,您可以删除 Clip-path 属性。
我正在使用输入类型范围来更改描边破折号的值
itr.addEventListener("input",()=>{pth.setAttribute("stroke-dashoffset",itr.value)})Run Code Online (Sandbox Code Playgroud)
<p><input type="range" min="0" max="235" value="235" id="itr"/></p>
<svg version="1.1" id="Loader" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 255 255" style="enable-background:new 0 0 255 255; width: 255px; height: 255px" xml:space="preserve">
<clipPath id="clip">
<path d="M169.9,73.6c9,6.2,15.3,14.9,20,23.3c4.7,8.3,7.1,17.2,7.1,26.7c0,4.9-0.7,9.6-2.1,14c-1.4,4.5-3.5,8.7-6.3,12.6
c-7.1,9.8-16.7,17.7-28.7,23.6c-12.1,5.9-24.7,8.9-37.8,8.9c-7.9,0-15.5-1.6-23-4.8c-7.5-3.2-14.2-7.8-20.1-13.7
c-5.8-6-10.4-12.6-13.5-20.1c-3.2-7.4-4.8-15-4.8-22.8c0-10.4,3.1-20.1,9.2-29.1c6.1-9,15.5-17.5,28-25.5c0,0,5.8-4.2,10.9-4.2
c5.1,0,11.1,3.1,6.6,10.3c-4.5,7.2-6.8,14.3-6.8,21.1c0,6.7,2.3,12.4,6.8,16.8c4.5,4.5,10.2,6.7,17,6.7c6.2,0,11.4-2.3,15.6-7
c4.1-4.7,6.2-10.6,6.2-17.7c0-4.9-1-9.5-3-13.7c-2-4.3-1.3-10.6,4.2-11.5C160.7,66.7,169.9,73.6,169.9,73.6z"/>
</clipPath>
<path id="pth" fill="none" stroke-dasharray="235" stroke-dashoffset="235" stroke="rgb(250,0,0)" stroke-width="72" d="M115,60C15,175 235,175 155,65" clip-path="url(#clip)" />
</svg>Run Code Online (Sandbox Code Playgroud)
OP 评论道:
是否可以保留比例输入并对填充进行动画处理,以便自动填充,并且当到达填充结束时,填充会沿相同方向移除,并且当填充行程再次为空时,然后从头开始?
为此,我将红线的描边短划线偏移量从 235 动画到 -235。这样,在对所有破折号进行动画处理(从 235 到 0)后,动画就会随之而来(从 0 到 -235),并且间隙现在可见。
@keyframes anim {
100% {
stroke-dashoffset: -235;
}
}
#pth {
animation: anim 5s linear infinite;
}Run Code Online (Sandbox Code Playgroud)
<svg version="1.1" id="Loader" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 255 255" style="enable-background:new 0 0 255 255; width: 255px; height: 255px" xml:space="preserve">
<clipPath id="clip">
<path id="base" d="M169.9,73.6c9,6.2,15.3,14.9,20,23.3c4.7,8.3,7.1,17.2,7.1,26.7c0,4.9-0.7,9.6-2.1,14c-1.4,4.5-3.5,8.7-6.3,12.6
c-7.1,9.8-16.7,17.7-28.7,23.6c-12.1,5.9-24.7,8.9-37.8,8.9c-7.9,0-15.5-1.6-23-4.8c-7.5-3.2-14.2-7.8-20.1-13.7
c-5.8-6-10.4-12.6-13.5-20.1c-3.2-7.4-4.8-15-4.8-22.8c0-10.4,3.1-20.1,9.2-29.1c6.1-9,15.5-17.5,28-25.5c0,0,5.8-4.2,10.9-4.2
c5.1,0,11.1,3.1,6.6,10.3c-4.5,7.2-6.8,14.3-6.8,21.1c0,6.7,2.3,12.4,6.8,16.8c4.5,4.5,10.2,6.7,17,6.7c6.2,0,11.4-2.3,15.6-7
c4.1-4.7,6.2-10.6,6.2-17.7c0-4.9-1-9.5-3-13.7c-2-4.3-1.3-10.6,4.2-11.5C160.7,66.7,169.9,73.6,169.9,73.6z" />
</clipPath>
<use href="#base" />
<path id="pth" fill="none" style="stroke-dasharray:235; stroke-dashoffset:235;" stroke="rgb(250,0,0)" stroke-width="72" d="M115,60C15,175 235,175 155,65" clip-path="url(#clip)" />
</svg>Run Code Online (Sandbox Code Playgroud)
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