所以我有一个SVG元素--大圆圈--和一组元素。
我想把这些元素绕着这个大圆圈旋转。代码非常简单,但是我已经搞不懂如何将这个圆(graph__skils)设置在正确的路径(大圆)上。正如你在下面的链接中看到的,这个小圆圈在大圆圈上的旋转不正确。请帮帮忙
HTML文件
<section class="graph">
<svg xmlns="http://www.w3.org/2000/svg"
width="670"
height="696"
viewBox="0 0 670 696">
<g>
<g class="graph__middle">
<path fill="#3f9" d="M345 264c34.794 0 63 28.206 63 63s-28.206 63-63 63-63-28.206-63-63 28.206-63 63-63z"/>
</g>
<g class="graph__design" >
<g class="graph_mainCircle">
<path fill="none" stroke="#cf9" stroke- linecap="round" stroke-linejoin="round" stroke-miterlimit="50" d="M345 197c71.797 0 130 58.203 130 130s-58.203 130-130 130-130-58.203-130-130 58.203-130 130-130z"/>
</g>
<g class="graph__skills">
<g class="graph__middle">
<path fill="#cf9" d="M445.053 387c11.052 0 20.012 8.954 20.012 20s-8.96 20-20.012 20-20.012-8.954-20.012-20 8.96-20 20.012-20z"/>
</g>
</g>
</g>
</g>
</svg>
SCSS文件
.graph {
position: relative;
width:500px;
height:500px;
svg {
position: relative;
border: 2px solid blue;
width: 99%;
height: 99%;
}
&__design {
position: relative;
}
&__skills {
transform-origin: center;
position: absolute;
animation: mercury-group 18s linear infinite;
}
&__middle {
position: relative;
}
}
@keyframes mercury-group {
0% {
transform: rotateZ(0deg);
}
100% {
transform: rotateZ(-360deg);
}
}
发布于 2019-04-25 21:57:56
svg元素的中心不是行星的中心。您需要将transform-origin
更改为345px 328px
。为了计算新的中心,我对graph__middle
使用了getBBox()方法
.graph {
position: relative;
width: 500px;
height: 500px;
}
.graph svg {
position: relative;
border: 2px solid blue;
width: 99%;
height: 99%;
}
.graph__design {
position: relative;
}
.graph__skills {
transform-origin: 345px 328px;
position: absolute;
animation: mercury-group 18s linear infinite;
}
.graph__middle {
position: relative;
}
@keyframes mercury-group {
0% {
transform: rotateZ(0deg);
}
100% {
transform: rotateZ(-360deg);
}
}
<section class="graph">
<svg xmlns="http://www.w3.org/2000/svg"
width="670"
height="696"
viewBox="0 0 670 696">
<g>
<g class="graph__middle" id="KK">
<path fill="red" d="M345 264c34.794 0 63 28.206 63 63s-28.206 63-63 63-63-28.206-63-63 28.206-63 63-63z"/>
</g>
<g class="graph__design" >
<g class="graph_mainCircle">
<path fill="none" stroke="black" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="50" d="M345 197c71.797 0 130 58.203 130 130s-58.203 130-130 130-130-58.203-130-130 58.203-130 130-130z"/>
</g>
<g class="graph__skills">
<g class="graph__middle">
<path d="M445.053 387c11.052 0 20.012 8.954 20.012 20s-8.96 20-20.012 20-20.012-8.954-20.012-20 8.96-20 20.012-20z"/>
</g>
</g>
</g>
</g>
<circle cx="345" cy="328" r="3" />
</svg>
</section>
发布于 2019-04-25 21:47:36
您可以像下面这样旋转大圆圈:
.graph {
position: relative;
width: 500px;
height: 500px;
}
svg {
position: relative;
border: 2px solid blue;
width: 99%;
height: 99%;
}
.graph__design {
position: relative;
transform-box:fill-box;
transform-origin: center;
animation: mercury-group 18s linear infinite;
}
.graph__skills {
transform-origin: center;
position: absolute;
}
.graph__middle {
position: relative;
}
@keyframes mercury-group {
0% {
transform: rotateZ(0deg);
}
100% {
transform: rotateZ(-360deg);
}
}
<section class="graph">
<svg xmlns="http://www.w3.org/2000/svg" width="670" height="696" viewBox="0 0 670 696">
<g>
<g class="graph__middle">
<path fill="#3f9" d="M345 264c34.794 0 63 28.206 63 63s-28.206 63-63 63-63-28.206-63-63 28.206-63 63-63z"/>
</g>
<g class="graph__design" >
<g class="graph_mainCircle">
<path fill="none" stroke="#cf9" stroke- linecap="round" stroke-linejoin="round" stroke-miterlimit="50" d="M345 197c71.797 0 130 58.203 130 130s-58.203 130-130 130-130-58.203-130-130 58.203-130 130-130z"/>
</g>
<g class="graph__skills">
<g class="graph__middle">
<path fill="#cf9" d="M445.053 387c11.052 0 20.012 8.954 20.012 20s-8.96 20-20.012 20-20.012-8.954-20.012-20 8.96-20 20.012-20z"/>
</g>
</g>
</g>
</g>
</svg>
</section>
发布于 2019-04-29 01:13:18
SVG示例
我的例子并没有完全回答你的问题,但我希望你能从我的回答中获得一些想法。
根据动画mercury-group
的名称判断,您希望创建一个太阳系模型。
我提出了行星围绕太阳旋转的动画的一个变体。
我把太阳系行星的旋转中心定位在太阳的中心,这个中心的坐标是x =" 250 "
,y =" 175 "
,y =" 175 "
。
因此,行星围绕太阳旋转的动画团队具有以下形式:
<animateTransform
attributeName="transform"
type="rotate"
values="0 250 175;360 250 175"
dur="12s"
repeatCount="indefinite"
/>
滤镜和渐变用于设计行星和太阳的外观。
太阳的波纹及其颜色变化的动画
<radialGradient id="gradSun">
<stop offset="80%" stop-color="yellow">
<animate attributeName="offset" values="80%;20%;80%" dur="6s" repeatCount="indefinite" />
</stop>
<stop offset="100%" stop-color="gold" >
<animate attributeName="stop-color" values="gold;red;gold" dur="6s" repeatCount="indefinite" />
</stop>
</radialGradient>
以下是行星围绕太阳旋转的完整动画代码:
.solar-system{
background-color:#002;
width:100%;
height:100%;
}
.sun{
fill:url(#gradSun);
filter:url(#dropShadow2);
}
.Earth-orbit{
stroke:rgba(255,255,255,.4);
stroke-width:1;
fill:none;
}
.Earth{
filter:url(#dropShadow1);
fill:url(#gradEarth);
}
<div class="solar-system">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
viewBox="0 0 500 400" >
<defs>
<filter id="dropShadow1"
x="-20%" y="-20%"
width="150%" height="150%">
<feGaussianBlur stdDeviation="1" />
</filter>
<filter id="dropShadow2"
x="-20%" y="-20%"
width="150%" height="150%">
<feGaussianBlur stdDeviation="4" />
</filter>
<radialGradient id="gradSun">
<stop offset="80%" stop-color="yellow">
<animate attributeName="offset" values="80%;20%;80%" dur="6s" repeatCount="indefinite" />
</stop>
<stop offset="100%" stop-color="gold" >
<animate attributeName="stop-color" values="gold;red;gold" dur="6s" repeatCount="indefinite" />
</stop>
</radialGradient>
<linearGradient id="gradEarth">
<stop offset="40%" stop-color="dodgerblue"></stop>
<stop offset="100%" stop-color="yellowgreen" ></stop>
</linearGradient>
</defs>
<!-- planet rotation animation -->
<g>
<animateTransform
attributeName="transform"
type="rotate"
values="360 250 175;0 250 175"
dur="12s"
repeatCount="indefinite"
/>
<circle class="Earth-orbit" cx="250" cy="175" r="90" />
<circle class="Earth" cx="160" cy="175" r="10" transform="rotate(45 250 175)" />
</g>
<circle class="sun" cx="250" cy="175" r="20" />
</svg>
https://stackoverflow.com/questions/55850691
复制相似问题