rotate
使用说明
| 值 |
auto | auto-reverse | <number> |
|---|---|
| 默认值 | 0 |
| 可动画 | 否 |
auto 和 auto-reverse 值允许动画元素的旋转在沿着路径移动时动态改变。如果 rotate 的值为 auto，则元素会旋转以使它的右侧与当前运动方向对齐。如果值为 auto-reverse，则它会将它的左侧旋转到当前运动方向。
将 rotate 的值设置为一个数字，指定一个常数旋转，以度为单位，在动画过程中不会改变。rotate 的默认值为 0，保持动画元素处于原始方向。
示例
SVG
html
<svg
width="400"
height="120"
viewBox="0 0 480 120"
xmlns="http://www.w3.org/2000/svg">
<!-- Draw the outline of the motion path in grey -->
<path
d="M10,110 A120,120 -45 0,1 110 10 A120,120 -45 0,1 10,110"
stroke="lightgrey"
stroke-width="2"
fill="none"
id="theMotionPath" />
<!-- Red arrow which will not rotate -->
<path fill="red" d="M-5,-5 L10,0 -5,5 0,0 Z">
<!-- Define the motion path animation -->
<animateMotion dur="6s" repeatCount="indefinite" rotate="0">
<mpath href="#theMotionPath" />
</animateMotion>
</path>
<g transform="translate(100, 0)">
<use href="#theMotionPath" />
<!-- Green arrow which will rotate along the motion path -->
<path fill="green" d="M-5,-5 L10,0 -5,5 0,0 Z">
<!-- Define the motion path animation -->
<animateMotion dur="6s" repeatCount="indefinite" rotate="auto">
<mpath href="#theMotionPath" />
</animateMotion>
</path>
</g>
<g transform="translate(200, 0)">
<use href="#theMotionPath" />
<!-- Blue arrow which will rotate backwards along the motion path -->
<path fill="blue" d="M-5,-5 L10,0 -5,5 0,0 Z">
<!-- Define the motion path animation -->
<animateMotion dur="6s" repeatCount="indefinite" rotate="auto-reverse">
<mpath href="#theMotionPath" />
</animateMotion>
</path>
</g>
<g transform="translate(300, 0)">
<use href="#theMotionPath" />
<!-- Purple arrow which will have a static rotation of 210 degrees -->
<path fill="purple" d="M-5,-5 L10,0 -5,5 0,0 Z">
<!-- Define the motion path animation -->
<animateMotion dur="6s" repeatCount="indefinite" rotate="210">
<mpath href="#theMotionPath" />
</animateMotion>
</path>
</g>
</svg>
结果
规范
| 规范 |
|---|
| SVG 动画级别 2 # RotateAttribute |