Как остановить анимацию и заморозить изображение при нажатии кнопки «Стоп»

Question

Я создал макет рабочего планетарного редуктора.

При нажатии на кнопку Stop анимация вращения шестеренок должна прекратиться и изображение «замерзнет».

Но на самом деле изображение возвращается в исходное состояние.Это видно по желтым маркерам на передачах.

Ниже код, который я сделал на данный момент:

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink='http://www.w3.org/1999/xlink' width="400" height="400" viewBox="0 0 400 400" >
  <title>animation planetary mechanism</title>
  <defs>
    <marker id="MarkerArrow" viewBox="0 0 20 20" refX="2" refY="5" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="14" height="10" rx="2" fill="#22211D" />
    </marker>
    <line id="line1" x1="150" y1="100" x2="60" y2="100" style=" fill:none;
				 marker-end: url(#MarkerArrow);
				 marker-start: url(#MarkerArrow);
			   stroke:#22211D; stroke-width:6; ">
    </line>
    <marker id="MarkerArrow-s" viewBox="0 0 20 20" refX="3" refY="1.7" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="7" height="3.5" rx="2" fill="#22211D" />
    </marker>
    <line id="line-s" x1="175" y1="100" x2="202" y2="100" style=" fill:none;
			 marker-end: url(#MarkerArrow-s1);
			 marker-start: url(#MarkerArrow-s);
		   stroke:#22211D; stroke-width:2; ">

    </line>
    <linearGradient id="vertical" x2="0%" y2="100%" spreadMethod="pad">
      <stop offset="0%" stop-color="powderblue" />
      <stop offset="100%" stop-color="lightgreen" />
    </linearGradient>

  </defs>
  <rect width="100%" height="100%" fill="url(#vertical)" />
  <g transform="translate(90,50)">

    <g id="wheel">
      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 100 100" to="360 100 100" begin="gO1.click" end="stop1.click" dur="14s" repeatCount="indefinite" />
        <use xlink:href="#line1" transform="rotate(0 100 100)" />
        <use xlink:href="#line1" transform="rotate(120 100 100)" />
        <use xlink:href="#line1" transform="rotate(240 100 100)" />


        <circle cx="100" cy="100" r="15" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="100" cy="100" r="50" style="stroke: #22211D; fill:none;   stroke-width: 15px;" />
        <circle cx="100" cy="100" r="60" style="stroke: #22211D; fill:none; stroke-dasharray: 5 6;  stroke-width: 10px;" />
        <circle cx="150" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g id="col-small">

      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 188 100" to="-360 188 100" begin="gO1.click" end="stop1.click" dur="3.5s" repeatCount="indefinite" />
        <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
    </g>
    
    <g id="planetar">
      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 100 100" to="-360 100 100" begin="gO1.click" end="stop1.click" dur="28s" repeatCount="indefinite" />

        <circle cx="100" cy="100" r="116" style="stroke: #22211D; fill:none;   stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="100" cy="100" r="124" style="stroke: #22211D; fill:none;   stroke-width: 12px;" />
        <circle cx="224" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g>
      <use xlink:href="#col-small" transform="rotate(240 100 100)" />
      <use xlink:href="#col-small" transform="rotate(120 100 100)" />
    </g>

    <g transform="translate(-10,160)">
      <g id="gO1">
        <rect x="45" y="85" height="22" width="60" rx="5" fill="#0080B8" stroke="dodgerblue" />
        <text x="62" y="102" font-size="16" fill="yellow">GO</text>
      </g>
      <g id="stop1">
        <rect x="110" y="85" height="22" width="60" rx="5" fill="crimson" stroke="red" />
        <text x="120" y="102" font-size="16" fill="yellow">STOP</text>
      </g>
    </g>

  </g>
</svg>

Вопрос:

Как сделать так, чтобы при нажатии кнопки Stop изображение останавливалось в текущем состояниии в следующий раз, когда вы нажмете кнопку GO, анимация начнется не с начала, а из заблокированного состояния.

Я не мог этого сделать.Буду благодарен за любое решение CSS, JS, SVG или их комбинацию.

Answer 1

Это мое решение, очень похожее на решение @Duannx.Однако, когда дело доходит до винтиков, мне нравится видеть их подходящими.(без наложения зубов).Поэтому я попытался пересчитать размер зубов.Я надеюсь, вам понравится.

Анимация начинается и начинается при нажатии на холст svg

c1r = 140;//the radius of the _c1 circle
c1perim = 2*Math.PI * c1r;// the perimeter of the _c1 circle

let sda = c1perim / 120;//sda = value for stroke-dasharray
// a css variable used to set the value for stroke-dasharray
cogs.style.setProperty("--foo", sda);
// the perimeter of _c2. This is the smaller circle used for the 3 identical cogs
c2perim = c1perim / Math.PI;
c2r = c1r/4; //the radius of the c2 circle
// the value  of the cx attribute of the _c2
c2cx = 150 + c1r - c2r;// 150 = center.x of the cogs
//the radius of the 3-rd circle, the one in the middle
c3r = c1r - c2r*2


// setting attributes
c1.setAttributeNS(null,"r",(c1r + sda));
_c1.setAttributeNS(null,"r",c1r);


_c2.setAttributeNS(null,"cx",c2cx);
c2.setAttributeNS(null,"cx",c2cx);
_c2.setAttributeNS(null,"r",c2r);
c2.setAttributeNS(null,"r",(c2r-sda));
g2.style.transformOrigin=`${c2cx}px 150px`;

_c3.setAttributeNS(null,"r",c3r);
c3.setAttributeNS(null,"r",(c3r-sda));


//event listener to toggle the class animated of the svg element
cogs.addEventListener("click",()=>{cogs.classList.toggle("animated")})

svg {
  width: 300px;
  border: 1px solid;
}
circle {
  
  stroke-width: var(--foo);
  fill: none;
}

g {
  transform-origin: 150px 150px;
  animation: rotate 80s linear infinite;
  stroke: black;
}

.animated g{animation-play-state: paused;}
#g2 {
  animation-duration:20s;
  stroke:#444;
}
#g3 {
  animation-duration:40s;
  animation-direction: reverse;
}

[id ^="_"] {
  stroke-dasharray: var(--foo);
}
#_c2 {
  stroke-dashoffset: var(--foo);
}

@keyframes rotate {
  to {
    transform: rotate(360deg);
  }
}

<svg id="cogs" class="animated" viewBox="-20 -20 340 340">
  <g id="g1">
  <circle id="c1" cx="150" cy="150" r="" />
  <circle id="_c1" cx="150" cy="150" r="" />
  </g>
  <g id="g2">
  <circle id="c2" cx="" cy="150" r="" />
  <circle id="_c2" cx="" cy="150" r="" />
  </g>
  <g id="g3">
  <circle id="c3" cx="150" cy="150" r=""  />
  <circle id="_c3" cx="150" cy="150" r=""  />
  </g>
 
  <use xlink:href="#g2" transform="rotate(120 150 150 )" />
  <use xlink:href="#g2" transform="rotate(240 150 150 )" />
</svg>

Answer 2

Вот трюк / хак с использованием CSS.Идея состоит в том, чтобы полагаться на переход, чтобы иметь вращение, а затем играть с длительностью, чтобы создать иллюзию заморозка .Устанавливая большое значение, вы делаете переход очень очень медленным, поэтому он будет остановлен для нас.

Вы должны отрегулировать значение скорости вращения / вращения для каждого колеса, чтобы получить желаемую скорость.Вам также нужно сделать значения достаточно большими, чтобы пользователь никогда не достигал конца перехода.

$('#gO1').click(function() {
    $('#wheel,#col-small,#planetar').addClass('rotate').removeClass('rotate-1');
})

$('#stop1').click(function() {
    $('#wheel,#col-small,#planetar').addClass('rotate-1').removeClass('rotate');
})

#wheel,
#col-small,
#planetar{
  transform-box:fill-box;
  transform-origin:center;
}
#wheel.rotate{
  transform:rotate(36000deg);
  transition:1400s linear;
}
#planetar.rotate {
  transform:rotate(-36000deg);
  transition:2800s linear;
}
#col-small.rotate {
  transform:rotate(-36000deg);
  transition:350s linear;
}

#wheel.rotate-1{
  transform:rotate(36001deg); /*we need a slight change to re-trigger the transition*/
  transition:140000s linear;
}
#planetar.rotate-1 {
  transform:rotate(-36001deg);
  transition:280000s linear;
}
#col-small.rotate-1 {
 transform:rotate(-36001deg);
  transition:35000s linear;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink='http://www.w3.org/1999/xlink' width="400" height="400" viewBox="0 0 400 400" >
  <title>animation planetary mechanism</title>
  <defs>
    <marker id="MarkerArrow" viewBox="0 0 20 20" refX="2" refY="5" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="14" height="10" rx="2" fill="#22211D" />
    </marker>
    <line id="line1" x1="150" y1="100" x2="60" y2="100" style=" fill:none;
				 marker-end: url(#MarkerArrow);
				 marker-start: url(#MarkerArrow);
			   stroke:#22211D; stroke-width:6; ">
    </line>
    <marker id="MarkerArrow-s" viewBox="0 0 20 20" refX="3" refY="1.7" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="7" height="3.5" rx="2" fill="#22211D" />
    </marker>
    <line id="line-s" x1="175" y1="100" x2="202" y2="100" style=" fill:none;
			 marker-end: url(#MarkerArrow-s1);
			 marker-start: url(#MarkerArrow-s);
		   stroke:#22211D; stroke-width:2; ">

    </line>
    <linearGradient id="vertical" x2="0%" y2="100%" spreadMethod="pad">
      <stop offset="0%" stop-color="powderblue" />
      <stop offset="100%" stop-color="lightgreen" />
    </linearGradient>

  </defs>
  <rect width="100%" height="100%" fill="url(#vertical)" />
  <g transform="translate(90,50)">

    <g id="wheel">
      <g>
       <use xlink:href="#line1" transform="rotate(0 100 100)" />
        <use xlink:href="#line1" transform="rotate(120 100 100)" />
        <use xlink:href="#line1" transform="rotate(240 100 100)" />

        <circle cx="100" cy="100" r="15" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="100" cy="100" r="50" style="stroke: #22211D; fill:none;   stroke-width: 15px;" />
        <circle cx="100" cy="100" r="60" style="stroke: #22211D; fill:none; stroke-dasharray: 5 6;  stroke-width: 10px;" />
        <circle cx="150" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g id="col-small">

      <g>
       <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
    </g>
    
    <g id="planetar">
      <g>
       
        <circle cx="100" cy="100" r="116" style="stroke: #22211D; fill:none;   stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="100" cy="100" r="124" style="stroke: #22211D; fill:none;   stroke-width: 12px;" />
        <circle cx="224" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g>
      <use xlink:href="#col-small" transform="rotate(240 100 100)" />
      <use xlink:href="#col-small" transform="rotate(120 100 100)" />
    </g>

    <g transform="translate(-10,160)">
      <g id="gO1">
        <rect x="45" y="85" height="22" width="60" rx="5" fill="#0080B8" stroke="dodgerblue" />
        <text x="62" y="102" font-size="16" fill="yellow">GO</text>
      </g>
      <g id="stop1">
        <rect x="110" y="85" height="22" width="60" rx="5" fill="crimson" stroke="red" />
        <text x="120" y="102" font-size="16" fill="yellow">STOP</text>
      </g>
    </g>

  </g>
</svg>

ОБНОВЛЕНИЕ

Кажется, что выше работает нормально только на Chrome, так что вот еще один, где япришлось продублировать код маленького колеса, чтобы он хорошо работал и в Firefox:

$('#gO1').click(function() {
    $('#wheel,.col-small g,#planetar').addClass('rotate').removeClass('rotate-1');
})

$('#stop1').click(function() {
    $('#wheel,.col-small g,#planetar').addClass('rotate-1').removeClass('rotate');
})

#wheel,
.col-small g,
#planetar{
  transform-box:fill-box;
  transform-origin:center;
}
#wheel.rotate{
  transform:rotate(36000deg); /*360 x 100*/
  transition:1400s linear; /*14s x 100*/
}
#planetar.rotate {
  transform:rotate(-36000deg);
  transition:2800s linear;
}
.col-small g.rotate {
  transform:rotate(-36000deg);
  transition:350s linear;
}

#wheel.rotate-1{
  transform:rotate(36001deg); /*we need a slight change to re-trigger the transition*/
  transition:140000s linear; /*14s x 100 x 100*/
}
#planetar.rotate-1 {
  transform:rotate(-36001deg);
  transition:280000s linear;
}
.col-small g.rotate-1 {
 transform:rotate(-36001deg);
  transition:35000s linear;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink='http://www.w3.org/1999/xlink' width="400" height="400" viewBox="0 0 400 400" >
  <title>animation planetary mechanism</title>
  <defs>
    <marker id="MarkerArrow" viewBox="0 0 20 20" refX="2" refY="5" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="14" height="10" rx="2" fill="#22211D" />
    </marker>
    <line id="line1" x1="150" y1="100" x2="60" y2="100" style=" fill:none;
				 marker-end: url(#MarkerArrow);
				 marker-start: url(#MarkerArrow);
			   stroke:#22211D; stroke-width:6; ">
    </line>
    <marker id="MarkerArrow-s" viewBox="0 0 20 20" refX="3" refY="1.7" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="7" height="3.5" rx="2" fill="#22211D" />
    </marker>
    <line id="line-s" x1="175" y1="100" x2="202" y2="100" style=" fill:none;
			 marker-end: url(#MarkerArrow-s1);
			 marker-start: url(#MarkerArrow-s);
		   stroke:#22211D; stroke-width:2; ">

    </line>
    <linearGradient id="vertical" x2="0%" y2="100%" spreadMethod="pad">
      <stop offset="0%" stop-color="powderblue" />
      <stop offset="100%" stop-color="lightgreen" />
    </linearGradient>

  </defs>
  <rect width="100%" height="100%" fill="url(#vertical)" />
  <g transform="translate(90,50)">

    <g id="wheel">
      <g>
       <use xlink:href="#line1" transform="rotate(0 100 100)" />
        <use xlink:href="#line1" transform="rotate(120 100 100)" />
        <use xlink:href="#line1" transform="rotate(240 100 100)" />

        <circle cx="100" cy="100" r="15" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="100" cy="100" r="50" style="stroke: #22211D; fill:none;   stroke-width: 15px;" />
        <circle cx="100" cy="100" r="60" style="stroke: #22211D; fill:none; stroke-dasharray: 5 6;  stroke-width: 10px;" />
        <circle cx="150" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g class="col-small">

      <g>
       <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
    </g>
    
    <g id="planetar">
      <g>
       
        <circle cx="100" cy="100" r="116" style="stroke: #22211D; fill:none;   stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="100" cy="100" r="124" style="stroke: #22211D; fill:none;   stroke-width: 12px;" />
        <circle cx="224" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g class="col-small" transform="rotate(240 100 100)">
      <g>
       <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
     </g>
     <g class="col-small" transform="rotate(120 100 100)">
      <g>
       <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
     </g>
  
    <g transform="translate(-10,160)">
      <g id="gO1">
        <rect x="45" y="85" height="22" width="60" rx="5" fill="#0080B8" stroke="dodgerblue" />
        <text x="62" y="102" font-size="16" fill="yellow">GO</text>
      </g>
      <g id="stop1">
        <rect x="110" y="85" height="22" width="60" rx="5" fill="crimson" stroke="red" />
        <text x="120" y="102" font-size="16" fill="yellow">STOP</text>
      </g>
    </g>

  </g>
</svg>

Answer 3

Вот простой фрагмент кода, который я создаю для имитации идеи.Все, что вам нужно, это

• Изменить стиль SMIL на стиль CSS (Не используйте animateTransform. Используйте css transform правильный).
• Переключите animation-play-state при нажатии на кнопку

const runBtn = document.getElementById('runBtn')
const pauseBtn = document.getElementById('pauseBtn')
const circle = document.getElementById('circle')

runBtn.addEventListener('click', () => {
  if (!circle.classList.contains('running')) {
    circle.classList.add('running')
  }
})
pauseBtn.addEventListener('click', () => {
  circle.classList.remove('running')
})

body {
  text-align: center;
}

#circle {
  animation: rotate 3s linear infinite;
  transform-origin: 200px 200px;
  animation-play-state: paused;
}

#circle.running {
  animation-play-state: running;
}

@keyframes rotate {
  0% {
    transform: rotateZ(0)
  }
  100% {
    transform: rotateZ(360deg)
  }
}

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink='http://www.w3.org/1999/xlink' width="200" height="200" viewBox="0 0 400 400" id="rootSvg">
<g id="circle">
  <circle cx="200" cy="200" r="100" stroke-width="20" stroke="black" fill="none"/>
  <circle cx="200" cy="100" r="5" fill="yellow"/>
</g>
</svg><br>
<button id="runBtn">run</button>
<button id="pauseBtn">pause</button>

Answer 4

Я внес некоторые изменения во фрагмент.Пожалуйста, посмотрите и дайте мне знать, если вы этого хотите.

<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink='http://www.w3.org/1999/xlink' width="400" height="400" viewBox="0 0 400 400" onload='Init(evt)' id = "SVGRoot">
  <title>animation planetary mechanism</title>
  <defs>
    <marker id="MarkerArrow" viewBox="0 0 20 20" refX="2" refY="5" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="14" height="10" rx="2" fill="#22211D" />
    </marker>
    <line id="line1" x1="150" y1="100" x2="60" y2="100" style=" fill:none;
				 marker-end: url(#MarkerArrow);
				 marker-start: url(#MarkerArrow);
			   stroke:#22211D; stroke-width:6; ">
    </line>
    <marker id="MarkerArrow-s" viewBox="0 0 20 20" refX="3" refY="1.7" markerUnits="userSpaceOnUse" orient="auto" markerWidth="20" markerHeight="20">
      <rect width="7" height="3.5" rx="2" fill="#22211D" />
    </marker>
    <line id="line-s" x1="175" y1="100" x2="202" y2="100" style=" fill:none;
			 marker-end: url(#MarkerArrow-s1);
			 marker-start: url(#MarkerArrow-s);
		   stroke:#22211D; stroke-width:2; ">

    </line>
    <linearGradient id="vertical" x2="0%" y2="100%" spreadMethod="pad">
      <stop offset="0%" stop-color="powderblue" />
      <stop offset="100%" stop-color="lightgreen" />
    </linearGradient>

  </defs>
  <rect width="100%" height="100%" fill="url(#vertical)" />
  <g transform="translate(90,50)">

    <g id="wheel">
      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 100 100" to="360 100 100" dur="14s" id = "innerCircle" begin="click" repeatCount="indefinite" />
        <use xlink:href="#line1" transform="rotate(0 100 100)" />
        <use xlink:href="#line1" transform="rotate(120 100 100)" />
        <use xlink:href="#line1" transform="rotate(240 100 100)" />


        <circle cx="100" cy="100" r="15" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="100" cy="100" r="50" style="stroke: #22211D; fill:none;   stroke-width: 15px;" />
        <circle cx="100" cy="100" r="60" style="stroke: #22211D; fill:none; stroke-dasharray: 5 6;  stroke-width: 10px;" />
        <circle cx="150" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g id="col-small">

      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 188 100" to="-360 188 100" id = "smallerCircle" begin="click"  dur="3.5s" repeatCount="indefinite" />
        <use xlink:href="#line-s" transform="rotate(0 188 100)" />
        <use xlink:href="#line-s" transform="rotate(120 188 100)" />
        <use xlink:href="#line-s" transform="rotate(240 188 100)" />

        <circle cx="188" cy="100" r="8" style="stroke: #22211D; fill:none;   stroke-width: 4px;" />
        <circle cx="188" cy="100" r="18" style="stroke: #22211D; fill:none;   stroke-width: 7px;" />
        <circle cx="188" cy="100" r="24" style="stroke: #22211D; fill:none; stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="206" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />

      </g>
    </g>
    
    <g id="planetar">
      <g>
        <animateTransform attributeName="transform" type="rotate" from="0 100 100" to="-360 100 100" id = "outerCircle" begin="click" dur="28s" repeatCount="indefinite" />

        <circle cx="100" cy="100" r="116" style="stroke: #22211D; fill:none;   stroke-dasharray: 5 5;  stroke-width: 10px;" />
        <circle cx="100" cy="100" r="124" style="stroke: #22211D; fill:none;   stroke-width: 12px;" />
        <circle cx="224" cy="100" r="3" style="stroke: #22211D; fill:yellow; " />
      </g>
    </g>

    <g>
      <use xlink:href="#col-small" transform="rotate(240 100 100)" />
      <use xlink:href="#col-small" transform="rotate(120 100 100)" />
    </g>

    <g transform="translate(-10,160)">
      <g id="gO1" onclick='Play()'>
        <rect x="45" y="85" height="22" width="60" rx="5" fill="#0080B8" stroke="dodgerblue" />
        <text x="62" y="102" font-size="16" fill="yellow">GO</text>
      </g>
      <g id="stop1" onclick='Pause()'>
        <rect x="110" y="85" height="22" width="60" rx="5" fill="crimson" stroke="red" />
        <text x="120" y="102" font-size="16" fill="yellow">STOP</text>
      </g>
    </g>

  </g>
</svg>
<script>
  var SVGDocument = null;
  var SVGRoot = null;
  var pauseButton = null;
  var playButton = null;
  var innerCircle = null;
  var outerCircle = null;
  var smallerCircle = null;

  function Init(evt)
  {  
     SVGDocument = evt.target.ownerDocument;
     SVGRoot = SVGDocument.getElementById('SVGRoot')

     pauseButton = SVGDocument.getElementById('stop1');
     playButton = SVGDocument.getElementById('gO1');
     innerCircle = SVGDocument.getElementById('innerCircle');;
     outerCircle = SVGDocument.getElementById('outerCircle');;
     smallerCircle = SVGDocument.getElementById('smallerCircle');;
  };

  function Pause()
  {  
     SVGRoot.pauseAnimations();
  };

  function Play()
  {
     if(SVGRoot.animationsPaused()){
        SVGRoot.unpauseAnimations();
     }
     else{
         innerCircle.beginElement();
         outerCircle.beginElement();
         smallerCircle.beginElement();
     }
  };

   </script>