我创建了一个svg应用程序，其中三个对象沿着弯曲的轨迹移动。
移动时，黄色球不会翻转，因为它具有对称的形状。
某些区域中的另外两个物体是颠倒的。
<svg version = "1.1" xmlns = "http://www.w3.org/2000/svg" xmlns:xlink = "http://www.w3.org/1999/xlink"
width="80%" height="80%"
viewBox="0 0 300 200" >
<defs>
<style type="text/css"><![CDATA[
#startButton:hover {
text-decoration: underline;
fill:green;
opacity: 0.5;
}
#stop:hover{
opacity: 0.5;
}
]]>
</style>
<marker id="mark_path" viewBox="0 0 10 10" refX="1" refY="5"
markerUnits="strokeWidth" orient="auto"
markerWidth="4" markerHeight="3">
<polyline points="0,0 10,5 0,10 1,5" fill="black" />
</marker>
<linearGradient id="grad1" x2="0%" y2="100%"
spreadMethod="pad" >
<stop offset="0%" stop-color="skyblue"/>
<stop offset="90%" stop-color="white"/>
<stop offset="100%" stop-color="yellowgreen"/>
</linearGradient>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="url(#grad1)" stroke="none" />
<!-- Motion curve -->
<path id="t_path" d="m28 30c16-18 51-12 72-1 35 18 34 79 66 96 32 17 79 24 102 0C291 102 295 43 266 25 194-19 112 177 38 136 7 118 4 56 28 30Z" marker-mid="url(#mark_path)" stroke="#c3c3c3" stroke-width="1" fill="none" />
<!-- balerina -->
<path id="balerina" transform="scale(0.08) translate(-100 -200) " fill="darkblue" d="M468 264c1 3 2 7 4 10 5 12 12 23 15 28s1 5 2 9c1 4 6 14 9 19 3 6 5 8 5 9 0 1-3 1-3 5s4 12 7 18 5 9 5 10c0 1-3 1-4 2 -2 2-3 5-5 7 -2 2-6 3-9 3 -3 0-6 0-8-1 -2-1-3-3-6-4 -2-1-5 0-8-2 -2-2-4-7-6-10 -2-3-5-4-7-6 -2-3-3-8-5-11 -2-3-5-5-7-8 -2-3-2-7-4-7 -1 0-3 4-5 10s-6 17-7 24 0 13-1 20c0 7-2 15-3 23 -1 8 0 16 2 30 2 14 5 34 9 49 3 14 6 23 7 32s0 19-2 28c-2 9-4 17-5 21s-2 5-4 6c-2 0-7 0-9-2 -2-2-1-6-1-12 0-6 0-15-2-21s-4-8-7-10c-3-3-6-5-8-9 -2-3-1-7 0-9 2-2 5-4 7-6 2-2 3-4 2-8 -1-3-2-8-7-17 -4-9-11-24-15-39s-3-32-4-45 0-21-1-35c-1-13-2-31-4-46 -1-15-3-28-4-36 -1-8-2-11-9-14 -7-4-20-8-36-14 -16-6-34-13-45-18 -12-6-17-10-24-15 -7-4-15-9-27-15 -11-6-26-15-37-20 -11-5-19-7-28-10 -9-3-21-8-31-13 -11-6-21-13-25-17s-2-6-1-8c2-2 3-3 9-3 6 0 17 3 27 7 10 4 20 9 26 13 6 4 9 6 12 8 4 2 9 5 22 8 13 3 33 8 47 13 14 5 22 12 29 16 7 4 13 5 25 7s33 3 41 3c9 0 7-1 6-3s-1-4-2-6c-1-2-4-4-5-6 -1-2-1-4-2-6s-4-5-5-8c-1-2-1-4-2-7s-3-5-4-7c-1-2 0-3-1-6 -1-2-2-6-2-9 0-3 1-6 2-8 0-3-1-5-1-7 1-2 3-4 6-4 2 0 5 1 6 1 1 0 2-2 3-3 2 0 4 1 6 1s3-1 5 1c2 2 6 6 9 8 2 3 3 4 4 4 1 0 1-1 2 0s3 5 6 8c2 4 4 7 5 8s1-1 2 0c1 1 4 4 6 8 3 4 5 7 7 9 2 1 2 1 4 2 2 1 4 5 8 10 1 1 2 3 3 4 2 0 2-4 1-8 -1-5-2-11-2-16 -1-6-1-11-1-15 0-4-1-7-3-9 -2-2-5-4-12-7 -7-3-16-6-23-8 -7-3-11-4-17-6 -6-1-15-3-24-6 -10-3-21-7-29-10 -8-3-13-4-17-3 -4 1-6 3-9 4 -3 1-7 1-10 1 -3 0-4 1-6 2s-3 0-4 0c-1 0-2-1-1-2 1-1 3-2 5-4 2-2 5-3 5-5 0-1-4-2-8-3 -5 0-11 1-15 2 -4 1-6 3-8 3 -2 1-4 1-5 0 -1-4 13-12 16-12 4-1 8-2 11-2 3-1 4-1 7 0 3 0 8 1 12 1s7 0 10 0c2 0 4 0 8 1 4 1 10 3 19 5s21 3 29 3c8 1 12 2 18 4 5 2 12 6 17 9 6 2 11 3 16 4s10-1 15 0c5 0 11 2 14 2 4 0 6 0 7-2 1-2 2-5 2-7 0-2-1-4-3-6 -2-2-6-3-11-6 -4-3-9-7-12-12 0-1-1-1-1-2l0 0c-3 1-6 0-8-1s-4-4-5-8c-1-4-1-10 1-14 2-4 5-7 8-8 3-1 5 0 7 2 0-1 1-1 1-2 4-4 9-7 13-9 4-2 8-2 13-3s8 0 13 1c4 1 8 4 11 7 2 3 3 6 4 9s4 4 6 5c2 1 4 2 4 3 0 1-2 3-3 4 -1 1-1 2 0 3s2 2 2 3c0 1 0 2 0 2s1 1 1 2c0 1 0 2 0 4 0 2 1 3 1 4 0 1 0 3-2 3 -2 1-7 2-10 4 -3 3-4 7-3 12 1 5 3 11 5 14 3 3 5 3 9 2 4-2 9-5 15-8 6-2 12-4 19-7 8-3 17-9 24-15 7-5 11-11 18-16s15-10 21-15c6-4 9-7 14-11 4-4 9-8 13-10 5-2 9-2 15-3 6 0 12-1 17-1 4 0 6-1 8-1 2 0 4 0 7 0 3 0 6 0 9 1 3 1 6 3 5 4 -1 1-4 0-11 0 -6 0-14 2-18 3 -4 1-2 2 0 4 2 1 6 3 7 4 1 1 1 2-1 2 -2 0-4 0-8-1 -4 0-10 0-15-1s-8-2-10-2 -3 1-5 2c-2 2-6 5-12 11 -6 6-15 15-22 22 -7 7-12 11-22 19 -10 8-25 18-35 25 -10 7-14 9-15 13 -1 4 1 9 1 18 0 9-3 22-8 34 -5 12-12 22-17 33 -6 11-11 21-13 32C469 262 468 263 468 264z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="1" rotate="auto" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</path>
<!-- Witch on a broomstick -->
<path transform="scale(0.2) scale(-1 1) translate(-10 -200)" fill="black" d="m142.2 23.5c9-0.1 3.7-16.5 10.9-17.7 2.9-0.5 4 1.1 6.3 2.3 0.1 2.4-1.7 2.9-2.3 4.6 2.1 1.8 3.6-0.6 5.7-0.6 0.7 4-5.3 3.2-6.9 1.7-1.2-2.1 0.4-3.4 1.1-5.1-8.1-3.6-5 5.1-6.3 9.7-1.9 6.9-12.7 10.8-13.7 1.1-0.6-5.9 7.4-13.1 1.1-16.6-4.8 3.8-7.4 10.2-10.3 16-5.1 10.2-10.6 22.9-16.6 32.6 0.4 2.8 3.6 2.9 4.6 5.2 0.6 2.7-3.4 0.8-2.9 3.4 3.3 0.6 6.7-1.3 8.6-3.4 1.1-1.2 0.8-2.7 1.7-4 3.3-4.9 8-6.3 14.9-8.6 1.6-4 6.2-5.7 10.9-5.1 2-0.9 2.3-3.4 3.4-5.1 2.6-2.4 7.2-2.7 9.7-5.1-0.4-2.1-2.9-2.8-0.6-4.6 3.3-0.5 2.9 2.8 2.9 5.7-3 3-8.4 3.5-10.3 7.4 1.6 0.9 2.6 0 4.6 1.1 1.9-1.2 1.6-4.6 3.4-5.7 6.8-0.2 6.8-7.3 9.2-12 4.1 1.3-0.7 9.4-2.3 10.9-1.9 1.8-4.3 2-5.7 2.3-0.9 3.1-2.2 5.8-4.6 7.4-2 0.3-1.4-2-3.4-1.7-3 3-4.4 7.4-10.9 6.9-1.8 4.9-10.3 3-14.3 5.7-0.3 9.7-10.3 12.6-18.9 12 5.6 9.6 18 2.1 24.6-2.3 1.4-0.9 3-1.4 4.6-2.3 2.8-1.7 5.2-4.3 8-5.7 6.9-3.4 22.5-6 31.5-1.1-1.8 6.1-13.2-0.5-15.4 4.6 3.6 2.4 8.1 0.2 12 0.6 6.1 0.6 12.3 3.9 20.6 3.4 2.3 0.9 3 3.5 6.3 3.4 1.2 4.7 9.6 2.2 9.2 8.6-6.5 0.7-11.5-4.4-17.7-4.6-2.1-0.1-4.2 1.3-6.3 1.1-2.8-0.2-5.3-2.5-8-2.9-7.7-1-13.9 4.7-21.7 4.6-3.2 0-6.6-2.6-9.7-0.6 2.2 5 12 2.5 17.7 4 2.1-0.4 1.4 2 2.3 2.9 3.6-0.4 5.4 1 5.7 4 0.7 2.4-2.4 1-2.9 2.3 3 4.5 11.9 3 13.2 9.2-4.7 2.4-9.6-1.5-14.3-1.7-1.4-0.1-3.2 0.7-4.6 0.6-4.6-0.5-8.3-3.1-11.4-5.1-8.6-1.2-15.9 1.6-22.9 0-5.6-1.3-8.8-7.6-13.7-8.6-1.4 3.8 2.4 7 5.7 8 4.8 5.7 11.3 9.7 17.2 14.3 0.7 2.4 2.1 4 2.9 6.3 0.6 3.1-1.9 3-1.7 5.7 9.8 0.3 25-0.3 33.8 0 0.8 1 1.5 1.9 1.1 4-0.5-6.1 5.8-7.5 11.4-5.7 1 0.3 0 2.7 1.1 2.9 1.8 0.5 0.8-1.9 1.7-2.3 2 0.3 3.2-0.2 4.6-0.6 1.4 0.5 3.3 0.5 3.4 2.3 1.7 0 0.6-2.9 2.3-2.9 5.9-1.2 11.2-1.9 15.5-4.6 2.6-1.7 4.1-5.7 7.4-4.6 2-0.1 0.8 2.3 1.1 3.4 0.6 2.1 1.9 3.8 2.3 6.9 0.1 1.4-0.3 2.4-1.1 2.9 2.6 2.5-0.1 3.6 1.1 7.4 0.5 1.8-1.5 1.2-1.7 2.3-0.4 2.3 1.5 2.3 1.1 4.6-6.3 4.8-9.8-3.8-18.9-6.9-1.6-0.5-3.3-0.2-4.6-0.6-2.9-0.9-5-2.3-10.3-1.1-1.4-0.7-2.7-1.5-3.4-2.9-1.6 3.9-10.9 3.7-13.2 0.6-23-0.1-45 0.2-65.2-0.6 2.3 5.3 9 6.2 11.4 11.4 5.8 2.5 12.4 3.9 17.7 6.3 7 3.2 11.6 8.5 14.9 16 1.9-0.3 2.7 0.4 4 0.6 3.9 8.1 20.8 3.2 26.9 9.2 1.5-0.1-0.8-1 0-2.3 2.6 1.7 3.1 4.8 5.2 6.9 2 2 5.3 2.7 7.4 4.6 1.2 1 5.5 5.9 6.3 7.4 3.8 7.9 0.3 19.3-6.3 22.9-3.7 2-10.7 3.3-17.7 2.9-14.9-0.8-28.6-11.6-46.9-12.6-11.4-0.6-23.7 3-32.6 5.7-7.5 2.3-13.1 4.9-18.9 9.7-1.5 2.5-4 4.1-6.9 5.1-1.6-4.6 4.6-6.5 5.7-10.3 5.6-2.8 11.2-5.6 16.6-8.6 7.5-1.7 15.4-4.4 23.5-5.1 3.6-0.3 7.2 0.9 10.3-1.1 4.9 2 8.4 0.6 13.2 1.1 1.9 0.2 4.1 1.4 6.3 1.7 7.8 1 12.9 3.1 21.7 5.2 5.9 1.3 14.8 6.4 22.9 3.4 4.3-1.5 6.4-7.2 5.7-13.2-0.8-6.5-8.6-15.3-15.4-18.3-3.6-1.6-7.7-0.9-10.3-3.4-1.8-0.5-1.2 1.5-2.3 1.7-13.2-1.4-23.6-3.8-30.3-10.9-3.5-3.7-7.1-8.3-12.6-10.9-0.1 5.3 9.5 5.8 10.9 11.4-4-1.2-8-4.1-12.6-5.1-3.9-0.9-8.4-0.6-12-1.7-5.7-1.8-8.9-6-13.7-8-1-3.8-4.3-5.2-5.1-9.2-5.6-2-9.4-5.8-10.9-12-8.1 0.5-15.2 0.1-22.9 0-20-0.2-42 1.6-64.7-0.6-0.6-1.5-0.1-2.9 0.6-4.6 5.7 0.9 9.9 0 16 0 6.9-4.2 13.5-8.6 17.7-15.4-1.6-3-7.9-1.3-8.6-5.1-1.6 0.1-1.6 1.8-2.9 2.3-1.9-0.2-1.1-3.1-2.3-4 1.5-1.6 5.5-0.1 6.3-3.4-0.1-2.8-4-1.7-2.9-5.7 3-0.3 2.6 2.8 4 4 4.5 0.9 3.1-4.2 6.9-4 0.3 3.6 0.5 5.6 3.4 5.7 3.7 0.1 4.6-5.4 4.6-8 4.4-0.9 8.2-1.5 12-1.7-2.3-3.4-2.8-8.6-4.6-12.6 1.6-2.5 0.5-5.2 1.1-7.4 1.1-3.7 4-6.2 5.7-9.7 0.3-1.1-0.8-3.4 1.1-2.9-0.5-1.5-1.2-2.4-1.1-4 0.1-1.3 1.9-3.6 2.9-5.1 0.1-0.1 0.4-2.2 0.6-2.3 1.1-0.9 4.1-0.5 4.6-1.1 1.3 6.2 0.8 14.5-2.3 20.6-1.1 2.1-0.9 4.5-2.9 6.3 0.2 2.4 2 5.4 0 8.6 1.6 4.2 1.3 7.8 0.6 12.6-0.1 0.6 0.6 1.7 0.6 1.7-0.6 2.9-2.8 4.1-3.4 6.9-0.4 1.7 0.2 3.6 0 5.2-0.9 8.6-7.1 11.6-10.9 18.3 6.6 2.8 6.1-1.3 10.3-4.6 1.6-1.2 3.8-1.5 4.6-2.3 2.3-2.2 3-6.1 6.3-8 1.5-0.9 3.9-1.5 5.7-2.3 4.3-1.8 10.2-4 14.3-8 2.5-2.4 3-5.2 6.3-6.9 0.4-2.9 1.7-4.7 2.3-7.4 2.6-1.6 4.4-3.9 5.7-6.9-2.1-1.8-2.1 2.1-5.1 1.1-1.7-1.8-2.6-4.2-5.1-5.1-3.5 0.8-6.5 4.9-10.9 2.9 0.8-5.3 6.8-5.4 10.9-7.4-0.2-3.8-6.8-1.2-7.4-4.6 1.6-3.7 8.6-2 12-4 14.4-15.2 26.5-32.7 40.1-48.6 2.9 1.8 5.8 2.9 6.3 5.7 1 5.2-7.8 13.2-1.1 17.7zm1.1 20.6c1.2-1 4.7 0.1 5.7-1.1-2.1-0.4-5.2-1.3-5.7 1.1zm-26.3 55.5c-4.3-4.3-9.5-10.5-15.4-8.6-5.3 1.7-9.9 13.4-17.2 13.2-0.3 1.8-1.1 3.1-1.1 5.2 1.8 0.9 2 3.3 5.2 2.9 1.1-9 10-12.6 20.6-11.4 4.8 0.5 9.3 4.2 13.2 2.3-0.7-2.2-2.6-3.1-5.1-3.4zm-69.2-8.6c-2.2 4.2-5 8-9.7 9.7-2.3 5.9-9.4 7-12 12.6 4-0.6 8.5-0.7 13.2-0.6 5.8-4.8 16.2-12.4 12-21.7-1.1 0-2.3 0-3.4 0zm36.1 6.9c-3.2 3.7-10 3.8-14.3 6.3 0.3 4.5-3.3 5.1-4 8.6 2.3 0.9 5.3-1.1 6.9-2.3 4.4-3.4 7.8-8.8 12.6-11.4-0.1-0.7-0.2-1.4-1.1-1.1zm-25.7 14.9c2.2 1.1 4.5 0.3 4-2.9-2 0.2-3.1 1.4-4 2.9zm17.7 0c2.1-0.5 2.8 1.3 4 0 0.2-2.9-4-2.7-4 0zm49.2 23.5c0.8-1.7 0.5-3.3-1.7-3.4 0.5 1.3 0.3 3.1 1.7 3.4zm5.2 6.3c-0.3-2.3-1.3-4.1-3.4-4.6-1.3 2 1.6 3.9 3.4 4.6z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+1s" end="stopRed.mouseover"
dur="4s" repeatCount="4" rotate="auto" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</path>
<!-- Yellow ball -->
<circle r="7" cx="2.5" cy="2.5" fill="yellow" stroke="green" >
<animateMotion begin="startButton.mouseover+0.25s" end="stopYellow.mouseover"
dur="8s" repeatCount="2" rotate="auto" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</circle>
<!-- Button `Start` -->
<g id="startButton" transform="scale(0.7) translate(-20 -20)" >
<rect x="20" y="20" rx="3" ry="3" width="60" height="20" fill="deepskyblue" />
<text x="50" y="35" font-size="16" font-weight="bold" font-family="Arial" text-anchor="middle"
fill="white" >Start</text>
</g>
<!-- Button group `Stop` -->
<g transform="translate(95 -5)">
<g id="stop" fill-opacity="1" >
<rect x="180" y="140" rx="3" ry="3" width="20" height="60" fill="none" stroke-width="2px" stroke="#c3c3c3" />
<g id="stopRed" >
<circle r="6" cx="190" cy="150" fill="none" stroke="black" />
<circle r="4" cx="190" cy="150" fill="black" />
</g>
<g id="stopYellow" >
<circle r="6" cx="190" cy="170" fill="none" stroke="black" />
<circle r="4" cx="190" cy="170" fill="yellow" stroke="orange" />
</g>
<g id="stopTeal" >
<circle r="6" cx="190" cy="190" fill="none" stroke="black" />
<circle r="4" cx="190" cy="190" fill="darkblue" stroke="orange" />
</g>
</g>
<text x="170" y="170" transform="rotate(-90 170,170)"
font-size="18" font-weight="bold" font-family="serif" text-anchor="middle" fill="gray" >Stop
</text>
</g>
</svg>如果有任何方法可以避免不对称数字的政变？
我很感激任何帮助解决这个问题。
更新
删除animateMotion元素上的rotate属性
<svg version = "1.1" xmlns = "http://www.w3.org/2000/svg" xmlns:xlink = "http://www.w3.org/1999/xlink"
width="60%" height="60%"
viewBox="0 0 300 200" >
<defs>
<style type="text/css"><![CDATA[
#startButton:hover {
text-decoration: underline;
fill:green;
opacity: 0.5;
}
#stop:hover{
opacity: 0.5;
}
]]>
</style>
<marker id="mark_path" viewBox="0 0 10 10" refX="1" refY="5"
markerUnits="strokeWidth" orient="auto"
markerWidth="4" markerHeight="3">
<polyline points="0,0 10,5 0,10 1,5" fill="black" />
</marker>
<linearGradient id="grad1" x2="0%" y2="100%"
spreadMethod="pad" >
<stop offset="0%" stop-color="skyblue"/>
<stop offset="90%" stop-color="white"/>
<stop offset="100%" stop-color="yellowgreen"/>
</linearGradient>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="url(#grad1)" stroke="none" />
<!-- Motion curve -->
<path id="t_path" d="m28 30c16-18 51-12 72-1 35 18 34 79 66 96 32 17 79 24 102 0C291 102 295 43 266 25 194-19 112 177 38 136 7 118 4 56 28 30Z" marker-mid="url(#mark_path)" stroke="#c3c3c3" stroke-width="1" fill="none" />
<!-- balerina -->
<path id="balerina" transform="scale(0.08) translate(-100 -200) " fill="darkblue" d="M468 264c1 3 2 7 4 10 5 12 12 23 15 28s1 5 2 9c1 4 6 14 9 19 3 6 5 8 5 9 0 1-3 1-3 5s4 12 7 18 5 9 5 10c0 1-3 1-4 2 -2 2-3 5-5 7 -2 2-6 3-9 3 -3 0-6 0-8-1 -2-1-3-3-6-4 -2-1-5 0-8-2 -2-2-4-7-6-10 -2-3-5-4-7-6 -2-3-3-8-5-11 -2-3-5-5-7-8 -2-3-2-7-4-7 -1 0-3 4-5 10s-6 17-7 24 0 13-1 20c0 7-2 15-3 23 -1 8 0 16 2 30 2 14 5 34 9 49 3 14 6 23 7 32s0 19-2 28c-2 9-4 17-5 21s-2 5-4 6c-2 0-7 0-9-2 -2-2-1-6-1-12 0-6 0-15-2-21s-4-8-7-10c-3-3-6-5-8-9 -2-3-1-7 0-9 2-2 5-4 7-6 2-2 3-4 2-8 -1-3-2-8-7-17 -4-9-11-24-15-39s-3-32-4-45 0-21-1-35c-1-13-2-31-4-46 -1-15-3-28-4-36 -1-8-2-11-9-14 -7-4-20-8-36-14 -16-6-34-13-45-18 -12-6-17-10-24-15 -7-4-15-9-27-15 -11-6-26-15-37-20 -11-5-19-7-28-10 -9-3-21-8-31-13 -11-6-21-13-25-17s-2-6-1-8c2-2 3-3 9-3 6 0 17 3 27 7 10 4 20 9 26 13 6 4 9 6 12 8 4 2 9 5 22 8 13 3 33 8 47 13 14 5 22 12 29 16 7 4 13 5 25 7s33 3 41 3c9 0 7-1 6-3s-1-4-2-6c-1-2-4-4-5-6 -1-2-1-4-2-6s-4-5-5-8c-1-2-1-4-2-7s-3-5-4-7c-1-2 0-3-1-6 -1-2-2-6-2-9 0-3 1-6 2-8 0-3-1-5-1-7 1-2 3-4 6-4 2 0 5 1 6 1 1 0 2-2 3-3 2 0 4 1 6 1s3-1 5 1c2 2 6 6 9 8 2 3 3 4 4 4 1 0 1-1 2 0s3 5 6 8c2 4 4 7 5 8s1-1 2 0c1 1 4 4 6 8 3 4 5 7 7 9 2 1 2 1 4 2 2 1 4 5 8 10 1 1 2 3 3 4 2 0 2-4 1-8 -1-5-2-11-2-16 -1-6-1-11-1-15 0-4-1-7-3-9 -2-2-5-4-12-7 -7-3-16-6-23-8 -7-3-11-4-17-6 -6-1-15-3-24-6 -10-3-21-7-29-10 -8-3-13-4-17-3 -4 1-6 3-9 4 -3 1-7 1-10 1 -3 0-4 1-6 2s-3 0-4 0c-1 0-2-1-1-2 1-1 3-2 5-4 2-2 5-3 5-5 0-1-4-2-8-3 -5 0-11 1-15 2 -4 1-6 3-8 3 -2 1-4 1-5 0 -1-4 13-12 16-12 4-1 8-2 11-2 3-1 4-1 7 0 3 0 8 1 12 1s7 0 10 0c2 0 4 0 8 1 4 1 10 3 19 5s21 3 29 3c8 1 12 2 18 4 5 2 12 6 17 9 6 2 11 3 16 4s10-1 15 0c5 0 11 2 14 2 4 0 6 0 7-2 1-2 2-5 2-7 0-2-1-4-3-6 -2-2-6-3-11-6 -4-3-9-7-12-12 0-1-1-1-1-2l0 0c-3 1-6 0-8-1s-4-4-5-8c-1-4-1-10 1-14 2-4 5-7 8-8 3-1 5 0 7 2 0-1 1-1 1-2 4-4 9-7 13-9 4-2 8-2 13-3s8 0 13 1c4 1 8 4 11 7 2 3 3 6 4 9s4 4 6 5c2 1 4 2 4 3 0 1-2 3-3 4 -1 1-1 2 0 3s2 2 2 3c0 1 0 2 0 2s1 1 1 2c0 1 0 2 0 4 0 2 1 3 1 4 0 1 0 3-2 3 -2 1-7 2-10 4 -3 3-4 7-3 12 1 5 3 11 5 14 3 3 5 3 9 2 4-2 9-5 15-8 6-2 12-4 19-7 8-3 17-9 24-15 7-5 11-11 18-16s15-10 21-15c6-4 9-7 14-11 4-4 9-8 13-10 5-2 9-2 15-3 6 0 12-1 17-1 4 0 6-1 8-1 2 0 4 0 7 0 3 0 6 0 9 1 3 1 6 3 5 4 -1 1-4 0-11 0 -6 0-14 2-18 3 -4 1-2 2 0 4 2 1 6 3 7 4 1 1 1 2-1 2 -2 0-4 0-8-1 -4 0-10 0-15-1s-8-2-10-2 -3 1-5 2c-2 2-6 5-12 11 -6 6-15 15-22 22 -7 7-12 11-22 19 -10 8-25 18-35 25 -10 7-14 9-15 13 -1 4 1 9 1 18 0 9-3 22-8 34 -5 12-12 22-17 33 -6 11-11 21-13 32C469 262 468 263 468 264z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="1" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</path>
<!-- Witch on a broomstick -->
<path transform="scale(0.2) scale(-1 1) translate(-10 -200)" fill="black" d="m142.2 23.5c9-0.1 3.7-16.5 10.9-17.7 2.9-0.5 4 1.1 6.3 2.3 0.1 2.4-1.7 2.9-2.3 4.6 2.1 1.8 3.6-0.6 5.7-0.6 0.7 4-5.3 3.2-6.9 1.7-1.2-2.1 0.4-3.4 1.1-5.1-8.1-3.6-5 5.1-6.3 9.7-1.9 6.9-12.7 10.8-13.7 1.1-0.6-5.9 7.4-13.1 1.1-16.6-4.8 3.8-7.4 10.2-10.3 16-5.1 10.2-10.6 22.9-16.6 32.6 0.4 2.8 3.6 2.9 4.6 5.2 0.6 2.7-3.4 0.8-2.9 3.4 3.3 0.6 6.7-1.3 8.6-3.4 1.1-1.2 0.8-2.7 1.7-4 3.3-4.9 8-6.3 14.9-8.6 1.6-4 6.2-5.7 10.9-5.1 2-0.9 2.3-3.4 3.4-5.1 2.6-2.4 7.2-2.7 9.7-5.1-0.4-2.1-2.9-2.8-0.6-4.6 3.3-0.5 2.9 2.8 2.9 5.7-3 3-8.4 3.5-10.3 7.4 1.6 0.9 2.6 0 4.6 1.1 1.9-1.2 1.6-4.6 3.4-5.7 6.8-0.2 6.8-7.3 9.2-12 4.1 1.3-0.7 9.4-2.3 10.9-1.9 1.8-4.3 2-5.7 2.3-0.9 3.1-2.2 5.8-4.6 7.4-2 0.3-1.4-2-3.4-1.7-3 3-4.4 7.4-10.9 6.9-1.8 4.9-10.3 3-14.3 5.7-0.3 9.7-10.3 12.6-18.9 12 5.6 9.6 18 2.1 24.6-2.3 1.4-0.9 3-1.4 4.6-2.3 2.8-1.7 5.2-4.3 8-5.7 6.9-3.4 22.5-6 31.5-1.1-1.8 6.1-13.2-0.5-15.4 4.6 3.6 2.4 8.1 0.2 12 0.6 6.1 0.6 12.3 3.9 20.6 3.4 2.3 0.9 3 3.5 6.3 3.4 1.2 4.7 9.6 2.2 9.2 8.6-6.5 0.7-11.5-4.4-17.7-4.6-2.1-0.1-4.2 1.3-6.3 1.1-2.8-0.2-5.3-2.5-8-2.9-7.7-1-13.9 4.7-21.7 4.6-3.2 0-6.6-2.6-9.7-0.6 2.2 5 12 2.5 17.7 4 2.1-0.4 1.4 2 2.3 2.9 3.6-0.4 5.4 1 5.7 4 0.7 2.4-2.4 1-2.9 2.3 3 4.5 11.9 3 13.2 9.2-4.7 2.4-9.6-1.5-14.3-1.7-1.4-0.1-3.2 0.7-4.6 0.6-4.6-0.5-8.3-3.1-11.4-5.1-8.6-1.2-15.9 1.6-22.9 0-5.6-1.3-8.8-7.6-13.7-8.6-1.4 3.8 2.4 7 5.7 8 4.8 5.7 11.3 9.7 17.2 14.3 0.7 2.4 2.1 4 2.9 6.3 0.6 3.1-1.9 3-1.7 5.7 9.8 0.3 25-0.3 33.8 0 0.8 1 1.5 1.9 1.1 4-0.5-6.1 5.8-7.5 11.4-5.7 1 0.3 0 2.7 1.1 2.9 1.8 0.5 0.8-1.9 1.7-2.3 2 0.3 3.2-0.2 4.6-0.6 1.4 0.5 3.3 0.5 3.4 2.3 1.7 0 0.6-2.9 2.3-2.9 5.9-1.2 11.2-1.9 15.5-4.6 2.6-1.7 4.1-5.7 7.4-4.6 2-0.1 0.8 2.3 1.1 3.4 0.6 2.1 1.9 3.8 2.3 6.9 0.1 1.4-0.3 2.4-1.1 2.9 2.6 2.5-0.1 3.6 1.1 7.4 0.5 1.8-1.5 1.2-1.7 2.3-0.4 2.3 1.5 2.3 1.1 4.6-6.3 4.8-9.8-3.8-18.9-6.9-1.6-0.5-3.3-0.2-4.6-0.6-2.9-0.9-5-2.3-10.3-1.1-1.4-0.7-2.7-1.5-3.4-2.9-1.6 3.9-10.9 3.7-13.2 0.6-23-0.1-45 0.2-65.2-0.6 2.3 5.3 9 6.2 11.4 11.4 5.8 2.5 12.4 3.9 17.7 6.3 7 3.2 11.6 8.5 14.9 16 1.9-0.3 2.7 0.4 4 0.6 3.9 8.1 20.8 3.2 26.9 9.2 1.5-0.1-0.8-1 0-2.3 2.6 1.7 3.1 4.8 5.2 6.9 2 2 5.3 2.7 7.4 4.6 1.2 1 5.5 5.9 6.3 7.4 3.8 7.9 0.3 19.3-6.3 22.9-3.7 2-10.7 3.3-17.7 2.9-14.9-0.8-28.6-11.6-46.9-12.6-11.4-0.6-23.7 3-32.6 5.7-7.5 2.3-13.1 4.9-18.9 9.7-1.5 2.5-4 4.1-6.9 5.1-1.6-4.6 4.6-6.5 5.7-10.3 5.6-2.8 11.2-5.6 16.6-8.6 7.5-1.7 15.4-4.4 23.5-5.1 3.6-0.3 7.2 0.9 10.3-1.1 4.9 2 8.4 0.6 13.2 1.1 1.9 0.2 4.1 1.4 6.3 1.7 7.8 1 12.9 3.1 21.7 5.2 5.9 1.3 14.8 6.4 22.9 3.4 4.3-1.5 6.4-7.2 5.7-13.2-0.8-6.5-8.6-15.3-15.4-18.3-3.6-1.6-7.7-0.9-10.3-3.4-1.8-0.5-1.2 1.5-2.3 1.7-13.2-1.4-23.6-3.8-30.3-10.9-3.5-3.7-7.1-8.3-12.6-10.9-0.1 5.3 9.5 5.8 10.9 11.4-4-1.2-8-4.1-12.6-5.1-3.9-0.9-8.4-0.6-12-1.7-5.7-1.8-8.9-6-13.7-8-1-3.8-4.3-5.2-5.1-9.2-5.6-2-9.4-5.8-10.9-12-8.1 0.5-15.2 0.1-22.9 0-20-0.2-42 1.6-64.7-0.6-0.6-1.5-0.1-2.9 0.6-4.6 5.7 0.9 9.9 0 16 0 6.9-4.2 13.5-8.6 17.7-15.4-1.6-3-7.9-1.3-8.6-5.1-1.6 0.1-1.6 1.8-2.9 2.3-1.9-0.2-1.1-3.1-2.3-4 1.5-1.6 5.5-0.1 6.3-3.4-0.1-2.8-4-1.7-2.9-5.7 3-0.3 2.6 2.8 4 4 4.5 0.9 3.1-4.2 6.9-4 0.3 3.6 0.5 5.6 3.4 5.7 3.7 0.1 4.6-5.4 4.6-8 4.4-0.9 8.2-1.5 12-1.7-2.3-3.4-2.8-8.6-4.6-12.6 1.6-2.5 0.5-5.2 1.1-7.4 1.1-3.7 4-6.2 5.7-9.7 0.3-1.1-0.8-3.4 1.1-2.9-0.5-1.5-1.2-2.4-1.1-4 0.1-1.3 1.9-3.6 2.9-5.1 0.1-0.1 0.4-2.2 0.6-2.3 1.1-0.9 4.1-0.5 4.6-1.1 1.3 6.2 0.8 14.5-2.3 20.6-1.1 2.1-0.9 4.5-2.9 6.3 0.2 2.4 2 5.4 0 8.6 1.6 4.2 1.3 7.8 0.6 12.6-0.1 0.6 0.6 1.7 0.6 1.7-0.6 2.9-2.8 4.1-3.4 6.9-0.4 1.7 0.2 3.6 0 5.2-0.9 8.6-7.1 11.6-10.9 18.3 6.6 2.8 6.1-1.3 10.3-4.6 1.6-1.2 3.8-1.5 4.6-2.3 2.3-2.2 3-6.1 6.3-8 1.5-0.9 3.9-1.5 5.7-2.3 4.3-1.8 10.2-4 14.3-8 2.5-2.4 3-5.2 6.3-6.9 0.4-2.9 1.7-4.7 2.3-7.4 2.6-1.6 4.4-3.9 5.7-6.9-2.1-1.8-2.1 2.1-5.1 1.1-1.7-1.8-2.6-4.2-5.1-5.1-3.5 0.8-6.5 4.9-10.9 2.9 0.8-5.3 6.8-5.4 10.9-7.4-0.2-3.8-6.8-1.2-7.4-4.6 1.6-3.7 8.6-2 12-4 14.4-15.2 26.5-32.7 40.1-48.6 2.9 1.8 5.8 2.9 6.3 5.7 1 5.2-7.8 13.2-1.1 17.7zm1.1 20.6c1.2-1 4.7 0.1 5.7-1.1-2.1-0.4-5.2-1.3-5.7 1.1zm-26.3 55.5c-4.3-4.3-9.5-10.5-15.4-8.6-5.3 1.7-9.9 13.4-17.2 13.2-0.3 1.8-1.1 3.1-1.1 5.2 1.8 0.9 2 3.3 5.2 2.9 1.1-9 10-12.6 20.6-11.4 4.8 0.5 9.3 4.2 13.2 2.3-0.7-2.2-2.6-3.1-5.1-3.4zm-69.2-8.6c-2.2 4.2-5 8-9.7 9.7-2.3 5.9-9.4 7-12 12.6 4-0.6 8.5-0.7 13.2-0.6 5.8-4.8 16.2-12.4 12-21.7-1.1 0-2.3 0-3.4 0zm36.1 6.9c-3.2 3.7-10 3.8-14.3 6.3 0.3 4.5-3.3 5.1-4 8.6 2.3 0.9 5.3-1.1 6.9-2.3 4.4-3.4 7.8-8.8 12.6-11.4-0.1-0.7-0.2-1.4-1.1-1.1zm-25.7 14.9c2.2 1.1 4.5 0.3 4-2.9-2 0.2-3.1 1.4-4 2.9zm17.7 0c2.1-0.5 2.8 1.3 4 0 0.2-2.9-4-2.7-4 0zm49.2 23.5c0.8-1.7 0.5-3.3-1.7-3.4 0.5 1.3 0.3 3.1 1.7 3.4zm5.2 6.3c-0.3-2.3-1.3-4.1-3.4-4.6-1.3 2 1.6 3.9 3.4 4.6z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+1s" end="stopRed.mouseover"
dur="4s" repeatCount="4" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</path>
<!-- Yellow ball -->
<circle r="7" cx="2.5" cy="2.5" fill="yellow" stroke="green" >
<animateMotion begin="startButton.mouseover+0.25s" end="stopYellow.mouseover"
dur="8s" repeatCount="2" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</circle>
<!-- Button `Start` -->
<g id="startButton" transform="scale(0.7) translate(-20 -20)" >
<rect x="20" y="20" rx="3" ry="3" width="60" height="20" fill="deepskyblue" />
<text x="50" y="35" font-size="16" font-weight="bold" font-family="Arial" text-anchor="middle"
fill="white" >Start</text>
</g>
<!-- Button group `Stop` -->
<g transform="translate(95 -5)">
<g id="stop" fill-opacity="1" >
<rect x="180" y="140" rx="3" ry="3" width="20" height="60" fill="none" stroke-width="2px" stroke="#c3c3c3" />
<g id="stopRed" >
<circle r="6" cx="190" cy="150" fill="none" stroke="black" />
<circle r="4" cx="190" cy="150" fill="black" />
</g>
<g id="stopYellow" >
<circle r="6" cx="190" cy="170" fill="none" stroke="black" />
<circle r="4" cx="190" cy="170" fill="yellow" stroke="orange" />
</g>
<g id="stopTeal" >
<circle r="6" cx="190" cy="190" fill="none" stroke="black" />
<circle r="4" cx="190" cy="190" fill="darkblue" stroke="orange" />
</g>
</g>
<text x="170" y="170" transform="rotate(-90 170,170)"
font-size="18" font-weight="bold" font-family="serif" text-anchor="middle" fill="gray" >Stop
</text>
</g>
</svg>物体不会翻转，但不会跟踪移动方向。有些网站倒退了
我不太确定这是否是你需要的。无论如何，我把芭蕾舞女演员的路径集中在0点附近，这就是我通常做的事情。请看一下。
<svg version = "1.1" xmlns = "http://www.w3.org/2000/svg" xmlns:xlink = "http://www.w3.org/1999/xlink"
width="60%" height="60%"
viewBox="0 0 300 200" >
<defs>
<style type="text/css"><![CDATA[
#startButton:hover {
text-decoration: underline;
fill:green;
opacity: 0.5;
}
#stop:hover{
opacity: 0.5;
}
]]>
</style>
<marker id="mark_path" viewBox="0 0 10 10" refX="1" refY="5"
markerUnits="strokeWidth" orient="auto"
markerWidth="4" markerHeight="3">
<polyline points="0,0 10,5 0,10 1,5" fill="black" />
</marker>
<linearGradient id="grad1" x2="0%" y2="100%"
spreadMethod="pad" >
<stop offset="0%" stop-color="skyblue"/>
<stop offset="90%" stop-color="white"/>
<stop offset="100%" stop-color="yellowgreen"/>
</linearGradient>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="url(#grad1)" stroke="none" />
<!-- Motion curve -->
<path id="t_path" d="m28 30c16-18 51-12 72-1 35 18 34 79 66 96 32 17 79 24 102 0C291 102 295 43 266 25 194-19 112 177 38 136 7 118 4 56 28 30Z" marker-mid="url(#mark_path)" stroke="#c3c3c3" stroke-width="1" fill="none" />
<!-- balerina -->
<path id="balerina" transform="scale(0.08)" fill="darkblue" d="M126.4,-43.5c1 3 2 7 4 10 5 12 12 23 15 28s1 5 2 9c1 4 6 14 9 19 3 6 5 8 5 9 0 1-3 1-3 5s4 12 7 18 5 9 5 10c0 1-3 1-4 2 -2 2-3 5-5 7 -2 2-6 3-9 3 -3 0-6 0-8-1 -2-1-3-3-6-4 -2-1-5 0-8-2 -2-2-4-7-6-10 -2-3-5-4-7-6 -2-3-3-8-5-11 -2-3-5-5-7-8 -2-3-2-7-4-7 -1 0-3 4-5 10s-6 17-7 24 0 13-1 20c0 7-2 15-3 23 -1 8 0 16 2 30 2 14 5 34 9 49 3 14 6 23 7 32s0 19-2 28c-2 9-4 17-5 21s-2 5-4 6c-2 0-7 0-9-2 -2-2-1-6-1-12 0-6 0-15-2-21s-4-8-7-10c-3-3-6-5-8-9 -2-3-1-7 0-9 2-2 5-4 7-6 2-2 3-4 2-8 -1-3-2-8-7-17 -4-9-11-24-15-39s-3-32-4-45 0-21-1-35c-1-13-2-31-4-46 -1-15-3-28-4-36 -1-8-2-11-9-14 -7-4-20-8-36-14 -16-6-34-13-45-18 -12-6-17-10-24-15 -7-4-15-9-27-15 -11-6-26-15-37-20 -11-5-19-7-28-10 -9-3-21-8-31-13 -11-6-21-13-25-17s-2-6-1-8c2-2 3-3 9-3 6 0 17 3 27 7 10 4 20 9 26 13 6 4 9 6 12 8 4 2 9 5 22 8 13 3 33 8 47 13 14 5 22 12 29 16 7 4 13 5 25 7s33 3 41 3c9 0 7-1 6-3s-1-4-2-6c-1-2-4-4-5-6 -1-2-1-4-2-6s-4-5-5-8c-1-2-1-4-2-7s-3-5-4-7c-1-2 0-3-1-6 -1-2-2-6-2-9 0-3 1-6 2-8 0-3-1-5-1-7 1-2 3-4 6-4 2 0 5 1 6 1 1 0 2-2 3-3 2 0 4 1 6 1s3-1 5 1c2 2 6 6 9 8 2 3 3 4 4 4 1 0 1-1 2 0s3 5 6 8c2 4 4 7 5 8s1-1 2 0c1 1 4 4 6 8 3 4 5 7 7 9 2 1 2 1 4 2 2 1 4 5 8 10 1 1 2 3 3 4 2 0 2-4 1-8 -1-5-2-11-2-16 -1-6-1-11-1-15 0-4-1-7-3-9 -2-2-5-4-12-7 -7-3-16-6-23-8 -7-3-11-4-17-6 -6-1-15-3-24-6 -10-3-21-7-29-10 -8-3-13-4-17-3 -4 1-6 3-9 4 -3 1-7 1-10 1 -3 0-4 1-6 2s-3 0-4 0c-1 0-2-1-1-2 1-1 3-2 5-4 2-2 5-3 5-5 0-1-4-2-8-3 -5 0-11 1-15 2 -4 1-6 3-8 3 -2 1-4 1-5 0 -1-4 13-12 16-12 4-1 8-2 11-2 3-1 4-1 7 0 3 0 8 1 12 1s7 0 10 0c2 0 4 0 8 1 4 1 10 3 19 5s21 3 29 3c8 1 12 2 18 4 5 2 12 6 17 9 6 2 11 3 16 4s10-1 15 0c5 0 11 2 14 2 4 0 6 0 7-2 1-2 2-5 2-7 0-2-1-4-3-6 -2-2-6-3-11-6 -4-3-9-7-12-12 0-1-1-1-1-2l0 0c-3 1-6 0-8-1s-4-4-5-8c-1-4-1-10 1-14 2-4 5-7 8-8 3-1 5 0 7 2 0-1 1-1 1-2 4-4 9-7 13-9 4-2 8-2 13-3s8 0 13 1c4 1 8 4 11 7 2 3 3 6 4 9s4 4 6 5c2 1 4 2 4 3 0 1-2 3-3 4 -1 1-1 2 0 3s2 2 2 3c0 1 0 2 0 2s1 1 1 2c0 1 0 2 0 4 0 2 1 3 1 4 0 1 0 3-2 3 -2 1-7 2-10 4 -3 3-4 7-3 12 1 5 3 11 5 14 3 3 5 3 9 2 4-2 9-5 15-8 6-2 12-4 19-7 8-3 17-9 24-15 7-5 11-11 18-16s15-10 21-15c6-4 9-7 14-11 4-4 9-8 13-10 5-2 9-2 15-3 6 0 12-1 17-1 4 0 6-1 8-1 2 0 4 0 7 0 3 0 6 0 9 1 3 1 6 3 5 4 -1 1-4 0-11 0 -6 0-14 2-18 3 -4 1-2 2 0 4 2 1 6 3 7 4 1 1 1 2-1 2 -2 0-4 0-8-1 -4 0-10 0-15-1s-8-2-10-2 -3 1-5 2c-2 2-6 5-12 11 -6 6-15 15-22 22 -7 7-12 11-22 19 -10 8-25 18-35 25 -10 7-14 9-15 13 -1 4 1 9 1 18 0 9-3 22-8 34 -5 12-12 22-17 33 -6 11-11 21-13 32C127.4,-45.5,126.4,-44.5,126.4,-43.5z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="1" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
</path>
<!-- Button `Start` -->
<g id="startButton" transform="scale(0.7) translate(-20 -20)" >
<rect x="20" y="20" rx="3" ry="3" width="60" height="20" fill="deepskyblue" />
<text x="50" y="35" font-size="16" font-weight="bold" font-family="Arial" text-anchor="middle"
fill="white" >Start</text>
</g>
<!-- Button group `Stop` -->
<g transform="translate(95 -5)">
<g id="stop" fill-opacity="1" >
<rect x="180" y="140" rx="3" ry="3" width="20" height="60" fill="none" stroke-width="2px" stroke="#c3c3c3" />
<g id="stopRed" >
<circle r="6" cx="190" cy="150" fill="none" stroke="black" />
<circle r="4" cx="190" cy="150" fill="black" />
</g>
<g id="stopYellow" >
<circle r="6" cx="190" cy="170" fill="none" stroke="black" />
<circle r="4" cx="190" cy="170" fill="yellow" stroke="orange" />
</g>
<g id="stopTeal" >
<circle r="6" cx="190" cy="190" fill="none" stroke="black" />
<circle r="4" cx="190" cy="190" fill="darkblue" stroke="orange" />
</g>
</g>
<text x="170" y="170" transform="rotate(-90 170,170)"
font-size="18" font-weight="bold" font-family="serif" text-anchor="middle" fill="gray" >Stop
</text>
</g>
</svg>OP正在评论：
在旅程的后半段，舞者应该向左看。
为此，我使用animateTransform type="scale"和calcMode="discrete"该比例用于翻转舞者。
我唯一不喜欢的是你使用的曲目不是对称的，舞者不会在你期望的时候完全翻转。
svg{border:1px solid;overflow:visible;}<svg version = "1.1" xmlns = "http://www.w3.org/2000/svg" xmlns:xlink = "http://www.w3.org/1999/xlink"
width="60%" height="60%"
viewBox="0 0 300 200" >
<defs>
<style type="text/css"><![CDATA[
#startButton:hover {
text-decoration: underline;
fill:green;
opacity: 0.5;
}
#stop:hover{
opacity: 0.5;
}
]]>
</style>
<marker id="mark_path" viewBox="0 0 10 10" refX="1" refY="5"
markerUnits="strokeWidth" orient="auto"
markerWidth="4" markerHeight="3">
<polyline points="0,0 10,5 0,10 1,5" fill="black" />
</marker>
</defs>
<!-- Motion curve -->
<path id="t_path" d="m28 30c16-18 51-12 72-1 35 18 34 79 66 96 32 17 79 24 102 0C291 102 295 43 266 25 194-19 112 177 38 136 7 118 4 56 28 30Z" marker-mid="url(#mark_path)" stroke="#c3c3c3" stroke-width="1" fill="none" />
<!-- balerina -->
<path id="balerina" transform="scale(0.08)" fill="darkblue" d="M126.4,-43.5c1 3 2 7 4 10 5 12 12 23 15 28s1 5 2 9c1 4 6 14 9 19 3 6 5 8 5 9 0 1-3 1-3 5s4 12 7 18 5 9 5 10c0 1-3 1-4 2 -2 2-3 5-5 7 -2 2-6 3-9 3 -3 0-6 0-8-1 -2-1-3-3-6-4 -2-1-5 0-8-2 -2-2-4-7-6-10 -2-3-5-4-7-6 -2-3-3-8-5-11 -2-3-5-5-7-8 -2-3-2-7-4-7 -1 0-3 4-5 10s-6 17-7 24 0 13-1 20c0 7-2 15-3 23 -1 8 0 16 2 30 2 14 5 34 9 49 3 14 6 23 7 32s0 19-2 28c-2 9-4 17-5 21s-2 5-4 6c-2 0-7 0-9-2 -2-2-1-6-1-12 0-6 0-15-2-21s-4-8-7-10c-3-3-6-5-8-9 -2-3-1-7 0-9 2-2 5-4 7-6 2-2 3-4 2-8 -1-3-2-8-7-17 -4-9-11-24-15-39s-3-32-4-45 0-21-1-35c-1-13-2-31-4-46 -1-15-3-28-4-36 -1-8-2-11-9-14 -7-4-20-8-36-14 -16-6-34-13-45-18 -12-6-17-10-24-15 -7-4-15-9-27-15 -11-6-26-15-37-20 -11-5-19-7-28-10 -9-3-21-8-31-13 -11-6-21-13-25-17s-2-6-1-8c2-2 3-3 9-3 6 0 17 3 27 7 10 4 20 9 26 13 6 4 9 6 12 8 4 2 9 5 22 8 13 3 33 8 47 13 14 5 22 12 29 16 7 4 13 5 25 7s33 3 41 3c9 0 7-1 6-3s-1-4-2-6c-1-2-4-4-5-6 -1-2-1-4-2-6s-4-5-5-8c-1-2-1-4-2-7s-3-5-4-7c-1-2 0-3-1-6 -1-2-2-6-2-9 0-3 1-6 2-8 0-3-1-5-1-7 1-2 3-4 6-4 2 0 5 1 6 1 1 0 2-2 3-3 2 0 4 1 6 1s3-1 5 1c2 2 6 6 9 8 2 3 3 4 4 4 1 0 1-1 2 0s3 5 6 8c2 4 4 7 5 8s1-1 2 0c1 1 4 4 6 8 3 4 5 7 7 9 2 1 2 1 4 2 2 1 4 5 8 10 1 1 2 3 3 4 2 0 2-4 1-8 -1-5-2-11-2-16 -1-6-1-11-1-15 0-4-1-7-3-9 -2-2-5-4-12-7 -7-3-16-6-23-8 -7-3-11-4-17-6 -6-1-15-3-24-6 -10-3-21-7-29-10 -8-3-13-4-17-3 -4 1-6 3-9 4 -3 1-7 1-10 1 -3 0-4 1-6 2s-3 0-4 0c-1 0-2-1-1-2 1-1 3-2 5-4 2-2 5-3 5-5 0-1-4-2-8-3 -5 0-11 1-15 2 -4 1-6 3-8 3 -2 1-4 1-5 0 -1-4 13-12 16-12 4-1 8-2 11-2 3-1 4-1 7 0 3 0 8 1 12 1s7 0 10 0c2 0 4 0 8 1 4 1 10 3 19 5s21 3 29 3c8 1 12 2 18 4 5 2 12 6 17 9 6 2 11 3 16 4s10-1 15 0c5 0 11 2 14 2 4 0 6 0 7-2 1-2 2-5 2-7 0-2-1-4-3-6 -2-2-6-3-11-6 -4-3-9-7-12-12 0-1-1-1-1-2l0 0c-3 1-6 0-8-1s-4-4-5-8c-1-4-1-10 1-14 2-4 5-7 8-8 3-1 5 0 7 2 0-1 1-1 1-2 4-4 9-7 13-9 4-2 8-2 13-3s8 0 13 1c4 1 8 4 11 7 2 3 3 6 4 9s4 4 6 5c2 1 4 2 4 3 0 1-2 3-3 4 -1 1-1 2 0 3s2 2 2 3c0 1 0 2 0 2s1 1 1 2c0 1 0 2 0 4 0 2 1 3 1 4 0 1 0 3-2 3 -2 1-7 2-10 4 -3 3-4 7-3 12 1 5 3 11 5 14 3 3 5 3 9 2 4-2 9-5 15-8 6-2 12-4 19-7 8-3 17-9 24-15 7-5 11-11 18-16s15-10 21-15c6-4 9-7 14-11 4-4 9-8 13-10 5-2 9-2 15-3 6 0 12-1 17-1 4 0 6-1 8-1 2 0 4 0 7 0 3 0 6 0 9 1 3 1 6 3 5 4 -1 1-4 0-11 0 -6 0-14 2-18 3 -4 1-2 2 0 4 2 1 6 3 7 4 1 1 1 2-1 2 -2 0-4 0-8-1 -4 0-10 0-15-1s-8-2-10-2 -3 1-5 2c-2 2-6 5-12 11 -6 6-15 15-22 22 -7 7-12 11-22 19 -10 8-25 18-35 25 -10 7-14 9-15 13 -1 4 1 9 1 18 0 9-3 22-8 34 -5 12-12 22-17 33 -6 11-11 21-13 32C127.4,-45.5,126.4,-44.5,126.4,-43.5z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="1" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
<animateTransform attributeType="XML" attributeName="transform" type="scale" values="0.08,0.08;-0.08,0.08" calcMode="discrete" begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="1" fill="freeze" restart="whenNotActive" />
</path>
<!-- Button `Start` -->
<g id="startButton" transform="scale(0.7) translate(-20 -20)" >
<rect x="20" y="20" rx="3" ry="3" width="60" height="20" fill="deepskyblue" />
<text x="50" y="35" font-size="16" font-weight="bold" font-family="Arial" text-anchor="middle"
fill="white" >Start</text>
</g>
<!-- Button group `Stop` -->
<g transform="translate(95 -5)">
<g id="stop" fill-opacity="1" >
<rect x="180" y="140" rx="3" ry="3" width="20" height="60" fill="none" stroke-width="2px" stroke="#c3c3c3" />
<g id="stopRed" >
<circle r="6" cx="190" cy="150" fill="none" stroke="black" />
<circle r="4" cx="190" cy="150" fill="black" />
</g>
<g id="stopYellow" >
<circle r="6" cx="190" cy="170" fill="none" stroke="black" />
<circle r="4" cx="190" cy="170" fill="yellow" stroke="orange" />
</g>
<g id="stopTeal" >
<circle r="6" cx="190" cy="190" fill="none" stroke="black" />
<circle r="4" cx="190" cy="190" fill="darkblue" stroke="orange" />
</g>
</g>
<text x="170" y="170" transform="rotate(-90 170,170)"
font-size="18" font-weight="bold" font-family="serif" text-anchor="middle" fill="gray" >Stop
</text>
</g>
</svg>我正在使用keyTimes和calcMode="linear"
svg{overflow:visible;}<svg version = "1.1" xmlns = "http://www.w3.org/2000/svg" xmlns:xlink = "http://www.w3.org/1999/xlink"
width="60%" height="60%"
viewBox="0 0 300 200" >
<defs>
<style type="text/css"><![CDATA[
#startButton:hover {
text-decoration: underline;
fill:green;
opacity: 0.5;
}
#stop:hover{
opacity: 0.5;
}
]]>
</style>
<marker id="mark_path" viewBox="0 0 10 10" refX="1" refY="5"
markerUnits="strokeWidth" orient="auto"
markerWidth="4" markerHeight="3">
<polyline points="0,0 10,5 0,10 1,5" fill="black" />
</marker>
</defs>
<!-- Motion curve -->
<path id="t_path" d="m28 30c16-18 51-12 72-1 35 18 34 79 66 96 32 17 79 24 102 0C291 102 295 43 266 25 194-19 112 177 38 136 7 118 4 56 28 30Z" marker-mid="url(#mark_path)" stroke="#c3c3c3" stroke-width="1" fill="none" />
<!-- balerina -->
<path id="balerina" transform="scale(0.08)" fill="darkblue" d="M126.4,-43.5c1 3 2 7 4 10 5 12 12 23 15 28s1 5 2 9c1 4 6 14 9 19 3 6 5 8 5 9 0 1-3 1-3 5s4 12 7 18 5 9 5 10c0 1-3 1-4 2 -2 2-3 5-5 7 -2 2-6 3-9 3 -3 0-6 0-8-1 -2-1-3-3-6-4 -2-1-5 0-8-2 -2-2-4-7-6-10 -2-3-5-4-7-6 -2-3-3-8-5-11 -2-3-5-5-7-8 -2-3-2-7-4-7 -1 0-3 4-5 10s-6 17-7 24 0 13-1 20c0 7-2 15-3 23 -1 8 0 16 2 30 2 14 5 34 9 49 3 14 6 23 7 32s0 19-2 28c-2 9-4 17-5 21s-2 5-4 6c-2 0-7 0-9-2 -2-2-1-6-1-12 0-6 0-15-2-21s-4-8-7-10c-3-3-6-5-8-9 -2-3-1-7 0-9 2-2 5-4 7-6 2-2 3-4 2-8 -1-3-2-8-7-17 -4-9-11-24-15-39s-3-32-4-45 0-21-1-35c-1-13-2-31-4-46 -1-15-3-28-4-36 -1-8-2-11-9-14 -7-4-20-8-36-14 -16-6-34-13-45-18 -12-6-17-10-24-15 -7-4-15-9-27-15 -11-6-26-15-37-20 -11-5-19-7-28-10 -9-3-21-8-31-13 -11-6-21-13-25-17s-2-6-1-8c2-2 3-3 9-3 6 0 17 3 27 7 10 4 20 9 26 13 6 4 9 6 12 8 4 2 9 5 22 8 13 3 33 8 47 13 14 5 22 12 29 16 7 4 13 5 25 7s33 3 41 3c9 0 7-1 6-3s-1-4-2-6c-1-2-4-4-5-6 -1-2-1-4-2-6s-4-5-5-8c-1-2-1-4-2-7s-3-5-4-7c-1-2 0-3-1-6 -1-2-2-6-2-9 0-3 1-6 2-8 0-3-1-5-1-7 1-2 3-4 6-4 2 0 5 1 6 1 1 0 2-2 3-3 2 0 4 1 6 1s3-1 5 1c2 2 6 6 9 8 2 3 3 4 4 4 1 0 1-1 2 0s3 5 6 8c2 4 4 7 5 8s1-1 2 0c1 1 4 4 6 8 3 4 5 7 7 9 2 1 2 1 4 2 2 1 4 5 8 10 1 1 2 3 3 4 2 0 2-4 1-8 -1-5-2-11-2-16 -1-6-1-11-1-15 0-4-1-7-3-9 -2-2-5-4-12-7 -7-3-16-6-23-8 -7-3-11-4-17-6 -6-1-15-3-24-6 -10-3-21-7-29-10 -8-3-13-4-17-3 -4 1-6 3-9 4 -3 1-7 1-10 1 -3 0-4 1-6 2s-3 0-4 0c-1 0-2-1-1-2 1-1 3-2 5-4 2-2 5-3 5-5 0-1-4-2-8-3 -5 0-11 1-15 2 -4 1-6 3-8 3 -2 1-4 1-5 0 -1-4 13-12 16-12 4-1 8-2 11-2 3-1 4-1 7 0 3 0 8 1 12 1s7 0 10 0c2 0 4 0 8 1 4 1 10 3 19 5s21 3 29 3c8 1 12 2 18 4 5 2 12 6 17 9 6 2 11 3 16 4s10-1 15 0c5 0 11 2 14 2 4 0 6 0 7-2 1-2 2-5 2-7 0-2-1-4-3-6 -2-2-6-3-11-6 -4-3-9-7-12-12 0-1-1-1-1-2l0 0c-3 1-6 0-8-1s-4-4-5-8c-1-4-1-10 1-14 2-4 5-7 8-8 3-1 5 0 7 2 0-1 1-1 1-2 4-4 9-7 13-9 4-2 8-2 13-3s8 0 13 1c4 1 8 4 11 7 2 3 3 6 4 9s4 4 6 5c2 1 4 2 4 3 0 1-2 3-3 4 -1 1-1 2 0 3s2 2 2 3c0 1 0 2 0 2s1 1 1 2c0 1 0 2 0 4 0 2 1 3 1 4 0 1 0 3-2 3 -2 1-7 2-10 4 -3 3-4 7-3 12 1 5 3 11 5 14 3 3 5 3 9 2 4-2 9-5 15-8 6-2 12-4 19-7 8-3 17-9 24-15 7-5 11-11 18-16s15-10 21-15c6-4 9-7 14-11 4-4 9-8 13-10 5-2 9-2 15-3 6 0 12-1 17-1 4 0 6-1 8-1 2 0 4 0 7 0 3 0 6 0 9 1 3 1 6 3 5 4 -1 1-4 0-11 0 -6 0-14 2-18 3 -4 1-2 2 0 4 2 1 6 3 7 4 1 1 1 2-1 2 -2 0-4 0-8-1 -4 0-10 0-15-1s-8-2-10-2 -3 1-5 2c-2 2-6 5-12 11 -6 6-15 15-22 22 -7 7-12 11-22 19 -10 8-25 18-35 25 -10 7-14 9-15 13 -1 4 1 9 1 18 0 9-3 22-8 34 -5 12-12 22-17 33 -6 11-11 21-13 32C127.4,-45.5,126.4,-44.5,126.4,-43.5z" fill-rule="evenodd">
<animateMotion begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="3" fill="freeze" restart="whenNotActive" >
<mpath xlink:href="#t_path" />
</animateMotion>
<animateTransform attributeType="XML" attributeName="transform" type="scale" values="0.08,0.08;
0.08,0.08;
-0.08,0.08;
-0.08,0.08;
0.08,0.08;"
keyTimes= "0;
0.45;
0.50;
0.95;
1" begin="startButton.mouseover+0.5s" end="stopTeal.mouseover"
dur="12s" repeatCount="3" fill="freeze" restart="whenNotActive" />
</path>
<!-- Button `Start` -->
<g id="startButton" transform="scale(0.7) translate(-20 -20)" >
<rect x="20" y="20" rx="3" ry="3" width="60" height="20" fill="deepskyblue" />
<text x="50" y="35" font-size="16" font-weight="bold" font-family="Arial" text-anchor="middle"
fill="white" >Start</text>
</g>
<!-- Button group `Stop` -->
<g transform="translate(95 -5)">
<g id="stop" fill-opacity="1" >
<rect x="180" y="140" rx="3" ry="3" width="20" height="60" fill="none" stroke-width="2px" stroke="#c3c3c3" />
<g id="stopRed" >
<circle r="6" cx="190" cy="150" fill="none" stroke="black" />
<circle r="4" cx="190" cy="150" fill="black" />
</g>
<g id="stopYellow" >
<circle r="6" cx="190" cy="170" fill="none" stroke="black" />
<circle r="4" cx="190" cy="170" fill="yellow" stroke="orange" />
</g>
<g id="stopTeal" >
<circle r="6" cx="190" cy="190" fill="none" stroke="black" />
<circle r="4" cx="190" cy="190" fill="darkblue" stroke="orange" />
</g>
</g>
<text x="170" y="170" transform="rotate(-90 170,170)"
font-size="18" font-weight="bold" font-family="serif" text-anchor="middle" fill="gray" >Stop
</text>
</g>
</svg>