我正在尝试使用jquery来获取svg动画，对于每个“检查”类，我需要为梯度求和百分比偏移量，而在删除此类时，需要减少梯度偏移百分比。所有这些都需要在添加类时放下动画，而在删除类时放下动画。
所以我得到了渐变，并偏移了5％的百分比。试图获取数组但卡住了。考虑获取具有“ check”类的所有元素，并尝试为每个类求和。
var firstStop = document.getElementById('F1gst1');
percentage = '5%'; firstStop.setAttribute('offset',percentage);
$(".analysis-li").click(function(){
$(this).toggleClass("check");
if($(this).hasClass('check')){
}
});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<li class="analysis-li"></li>
<li class="analysis-li"></li>
<li class="analysis-li"></li>
<li class="list analysis-li"></li>
<li class="analysis-li"></li>
<li class="list analysis-li"></li>
<li class="analysis-li" ></li>
<svg class="thermometr" id="Layer_1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44.3 333.8">
<linearGradient y2="0%" x2="0%" y1="100%" x1="0%" id="F1g"><stop stop-color="#00FF00" offset="0%" id="F1gst1"/><stop stop-color="#FFFFFF" offset="0%" id="F1gst2"/></linearGradient>
<path fill="url(#F1g)" class="st0" d="M30.5 297.5V4.6c0-2.5-2.1-4.6-4.6-4.6-2.5 0-4.6 2.1-4.6 4.6v292.9c-7.9 2-13.8 9.2-13.8 17.8 0 10.2 8.2 18.4 18.4 18.4s18.4-8.2 18.4-18.4c0-8.5-5.9-15.7-13.8-17.8"/><path fill="url(#F1g)" class="st0" d="M9 290.2h7.5v.5H9zM9 284.3h7.5v.6H9zM9 278.4h7.5v.5H9zM9 272.5h7.5v.6H9zM0 266.6h16.5v.6H0zM9 260.7h7.5v.5H9zM9 254.8h7.5v.6H9zM9 248.9h7.5v.5H9zM9 243h7.5v.6H9zM0 237.1h16.5v.6H0zM9 231.3h7.5v.5H9zM9 225.4h7.5v.6H9zM9 219.5h7.5v.6H9zM9 213.6h7.5v.6H9zM0 207.7h16.5v.6H0zM9 201.8h7.5v.6H9zM9 195.9h7.5v.6H9zM9 190h7.5v.6H9zM9 184.1h7.5v.5H9zM0 178.2h16.5v.6H0zM9 172.3h7.5v.6H9zM9 166.4h7.5v.5H9zM9 160.5h7.5v.6H9zM9 154.7h7.5v.6H9zM0 148.8h16.5v.6H0zM9 142.9h7.5v.6H9zM9 137h7.5v.5H9zM9 131.1h7.5v.5H9zM9 125.2h7.5v.6H9zM0 119.3h16.5v.5H0zM9 113.4h7.5v.6H9zM9 107.5h7.5v.6H9zM9 101.6h7.5v.5H9zM9 95.7h7.5v.6H9zM0 89.8h16.5v.6H0zM9 83.9h7.5v.6H9zM9 78.1h7.5v.6H9zM9 72.2h7.5v.6H9zM9 66.3h7.5v.6H9zM0 60.4h16.5v.6H0zM9 54.8h7.5v.6H9zM9 48.9h7.5v.6H9zM9 43h7.5v.5H9zM9 37.1h7.5v.6H9zM0 31.2h16.5v.5H0zM9 26h7.5v.6H9zM9 20.1h7.5v.5H9zM9 14.2h7.5v.6H9zM9 8.3h7.5v.6H9zM0 2.4h16.5V3H0z"/>
</svg>
答案 0 :(得分：1)
这就是我要做的。为了动画化渐变，我使用了requestAnimationFrame。我正在为10％到100％之间的第二个停止偏移量设置动画，但是您可以选择所需的值。
请阅读代码中的注释。
// the second stop
let laststop = document.getElementById('F1gst2');
// a variable used to toggle the animation
let n = 0;
// the target value of the offset attribute
let target;
// the actual value of the offset attribute
let val = 10;
//the request animation frame id
let rid = null;
$(".analysis-li").click(function(){
n++;
// set the target value
if(n%2 == 1){
target = 100;
}else{target = 10}
// if there is an animation stop it
if(rid){cancelAnimationFrame(rid); rid="null"}
// call the frame function
frame()
});
function frame(){
rid = requestAnimationFrame(frame);
//the distance between the value and the target value
dist = target - val;
//increase the value
val += dist/10;
// set the offset value
laststop.setAttributeNS(null,"offset",`${val}%`)
}svg{border:1px solid; width:30px}
path{stroke:black;}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<p class="analysis-li">click here</p>
<svg class="thermometr" id="Layer_1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 44.3 333.8" >
<linearGradient y2="0%" x2="0%" y1="100%" x1="0%" id="F1g">
<stop stop-color="#00FF00" offset="0%" id="F1gst1"/>
<stop stop-color="#FFFFFF" offset="10%" id="F1gst2"/>
</linearGradient>
<path fill="url(#F1g)" class="st0" d="M30.5 297.5V4.6c0-2.5-2.1-4.6-4.6-4.6-2.5 0-4.6 2.1-4.6 4.6v292.9c-7.9 2-13.8 9.2-13.8 17.8 0 10.2 8.2 18.4 18.4 18.4s18.4-8.2 18.4-18.4c0-8.5-5.9-15.7-13.8-17.8"/>
<path fill="url(#F1g)" class="st0" d="M9 290.2h7.5v.5H9zM9 284.3h7.5v.6H9zM9 278.4h7.5v.5H9zM9 272.5h7.5v.6H9zM0 266.6h16.5v.6H0zM9 260.7h7.5v.5H9zM9 254.8h7.5v.6H9zM9 248.9h7.5v.5H9zM9 243h7.5v.6H9zM0 237.1h16.5v.6H0zM9 231.3h7.5v.5H9zM9 225.4h7.5v.6H9zM9 219.5h7.5v.6H9zM9 213.6h7.5v.6H9zM0 207.7h16.5v.6H0zM9 201.8h7.5v.6H9zM9 195.9h7.5v.6H9zM9 190h7.5v.6H9zM9 184.1h7.5v.5H9zM0 178.2h16.5v.6H0zM9 172.3h7.5v.6H9zM9 166.4h7.5v.5H9zM9 160.5h7.5v.6H9zM9 154.7h7.5v.6H9zM0 148.8h16.5v.6H0zM9 142.9h7.5v.6H9zM9 137h7.5v.5H9zM9 131.1h7.5v.5H9zM9 125.2h7.5v.6H9zM0 119.3h16.5v.5H0zM9 113.4h7.5v.6H9zM9 107.5h7.5v.6H9zM9 101.6h7.5v.5H9zM9 95.7h7.5v.6H9zM0 89.8h16.5v.6H0zM9 83.9h7.5v.6H9zM9 78.1h7.5v.6H9zM9 72.2h7.5v.6H9zM9 66.3h7.5v.6H9zM0 60.4h16.5v.6H0zM9 54.8h7.5v.6H9zM9 48.9h7.5v.6H9zM9 43h7.5v.5H9zM9 37.1h7.5v.6H9zM0 31.2h16.5v.5H0zM9 26h7.5v.6H9zM9 20.1h7.5v.5H9zM9 14.2h7.5v.6H9zM9 8.3h7.5v.6H9zM0 2.4h16.5V3H0z"/>
</svg>
答案 1 :(得分：1)
SVG以编程方式创建，输入值仅转换一种形状：
let path = (y, d, extra) => `<path d="${d}" transform="translate(0,${y})" ${extra||''}></path>`
let multi = (count, html) => Array(count).fill(0).map((e, i) => html(i)).join('');
let toggle = el => el.classList.toggle('on') |
rect.setAttribute('y', 14.6*(7-document.querySelectorAll("path.on").length)+8)
scale.innerHTML = multi(10, i => path(i*10, 'M60,10h10M65,12h5M65,14h5M65,16h5M65,18h5'));
checks.innerHTML = multi(7, i => path(i*12, 'M10,10v8h8v-8z', 'class="on" onclick="toggle(this)"') +
path(i*12, 'M12,14l2.2,2l2.2,-4'))g#scale path {
stroke: white;
stroke-width: 0.7;
}
#checks {
position: absolute;
top: 20px;
left: 20px;
}
#checks path {
fill: none;
pointer-events: all;
stroke: #f5b53a;
cursor:pointer;
stroke-linejoin:round;
}
#checks path.on + path {
opacity:1;
}
#checks path:nth-child(2n) {
opacity: 0;
pointer-events: none;
transition: 0.5s;
stroke: white;
}<svg viewbox="0 0 135 135" height="90vh" style="background-color:purple">
<defs><mask id="termometer">
<path d="M80,10v100" stroke="white" stroke-width="5" stroke-linecap="round"></path>
<circle r="10" cy="120" cx="80" fill="white"></circle>
<g id="scale"></g>
</mask></defs>
<rect width="130" height="130" mask="url(#termometer)" fill="white"></rect>
<rect id="rect" style="transition:1s" y="8" width="130" height="130"
mask="url(#termometer)" fill="#f5b53a"></rect>
<g id="checks"></g>
</svg>