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css - 如何使用 SVG 动画为stroke-dashoffset 设置动画?

转载 作者:行者123 更新时间:2023-12-02 09:10:43 24 4
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制作动画 stroke-dashoffset我知道使用 CSS @keyframes移动 stroke-dashoffset SVG 路径。但是,因为我想用 background-size: cover 来调整 SVG 的大小,我无法定位 SVG 中的单个元素,因为它被引用为 background-image在 CSS 中。

有没有办法使用SVG的内置<animate />动画标签 stroke-dashoffset ?

最佳答案

狮子头动画示例
通过更改 stroke-dashoffset 实现从零到最大值绘制线条的动画从最大值到零。

 attributeName="stroke-dashoffset"
begin="0.1s;f1.end+0.4s"
values="2037;0;2037"
dur="15s"
calcMode="linear"
/>
添加了第二个动画 - 填充绘制线条动画完成后开始的颜色。
 <animate id="f1"
attributeName="fill"
begin="p1.end+0.4s"
dur="10s"
values="#FCFCFC;#A9A9A9;black;#A9A9A9;#FCFCFC"
/>
绘制和删除线条是使用属性完成的: values="2037;0;2037"
.txt {
font-size:1.2em;
color:gray;
}
h1 {
text-align: center;
}
.lion {
padding:0.25em;
margin-left:-1.5em;
float:left;
}
<body>
<h1>Lion</h1>

<div class="lion">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"

width="200" height="200" viewBox="-30 85 600 600"
style="border:0px dotted red;">
<title>The animation is drawing lines</title>

<g transform="scale(0.85) ">

<path class="path" fill="none" stroke-width="2" stroke ="black" stroke-dasharray= "2000" stroke-dashoffset="2000" d="m272.2 113.6c-0.3 0-0.6 0-0.9 0.1-0.7 0.1 2.2 2.5 10.9 11.2 9.8 9.7 18.2 19.1 23 25.5 5.9 8.1 12.3 18.6 16.4 29.1 0.8 1.6 3.6 11.9 4.6 16.9 0.5 2.8 1 5.4 1.2 5.8 0.8 2.5 3.9-8.4 4.8-13 1.2-5.6 1.2-11.4 1-17.1-0.2-5.8-0.5-11.8-2.2-17.4-1.4-4.8-3.6-9.4-6.7-13.3-6.6-8.2-15.1-15.1-24.4-20.1-6.4-3.5-13.8-4.9-20.9-6.5-2.2-0.5-4.8-1.3-6.9-1.2zm194.7 0c-2.1 0-4.7 0.7-6.9 1.2-7.1 1.6-14.5 3.1-20.9 6.5-9.3 5-17.8 11.8-24.4 20.1-3.1 3.9-5.3 8.6-6.7 13.3-1.7 5.6-2 11.5-2.2 17.4-0.2 5.7-0.1 11.5 1 17.1 1 4.5 4 15.4 4.8 13 0.1-0.3 0.6-2.9 1.2-5.8 0.9-5 3.7-15.3 4.6-16.9 4.2-10.5 10.5-21 16.5-29.1 4.8-6.5 13.2-15.8 23-25.5 8.7-8.7 11.6-11.1 10.9-11.2-0.3 0-0.6-0.1-0.9-0.1zm-97.3 24.5c-0.8-0.1-1.4 5.7-2 8.5-0.9 4.3-1.3 8.7-2.4 12.9-1.8 6.9-4.3 13.7-7.1 20.3-2.4 5.7-6.4 13.4-8.3 16.5-5.5 8.8-9 13.7-13.9 19.6-6.1 7.3-7.4 8.8-13 14.4-10.8 10.8-19.3 15.7-30 22.1-7.3 4.4-15.3 7.6-23.1 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<p> The lion (Panthera leo) is a species in the family Felidae; it is a muscular, deep-chested cat with a short, rounded head, a reduced neck and round ears, and a hairy tuft at the end of its tail. The lion is sexually dimorphic; males are larger than females with a typical weight range of 150 to 250 kg (330 to 550 lb) for males and 120 to 182 kg (265 to 400 lb) for females. Male lions have a prominent mane, which is the most recognisable feature of the species. A lion pride consists of a few adult males, related females and cubs. Groups of female lions typically hunt together, preying mostly on large ungulates. The species is an apex and keystone predator, although they scavenge when opportunities occur. Some lions have been known to hunt humans, although the species typically does not.</p>

<p>Typically, the lion inhabits grasslands and savannas but is absent in dense forests. It is usually more diurnal than other big cats, but when persecuted it adapts to being active at night and at twilight. In the Pleistocene, the lion ranged throughout Eurasia, Africa and North America but today it has been reduced to fragmented populations in Sub-Saharan Africa and one critically endangered population in western India. It has been listed as Vulnerable on the IUCN Red List since 1996 because populations in African countries have declined by about 43% since the early 1990s. Lion populations are untenable outside designated protected areas. Although the cause of the decline is not fully understood, habitat loss and conflicts with humans are the greatest causes for concern.</p>

<p>One of the most widely recognised animal symbols in human culture, the lion has been extensively depicted in sculptures and paintings, on national flags, and in contemporary films and literature. Lions have been kept in menageries since the time of the Roman Empire and have been a key species sought for exhibition in zoological gardens across the world since the late 18th century. Cultural depictions of lions were prominent in the Upper Paleolithic period; carvings and paintings from the Lascaux and Chauvet Caves in France have been dated to 17,000 years ago, and depictions have occurred in virtually all ancient and medieval cultures that coincided with the lion's former and current ranges.is not fully understood, habitat loss and conflicts with humans are the greatest causes for concern. </p>

wikipedia.org

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关于css - 如何使用 SVG 动画为stroke-dashoffset 设置动画?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52563865/

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