Как сделать одну за другой анимацию на объекте SVG Path? - PullRequest
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Как сделать одну за другой анимацию на объекте SVG Path?

0 голосов
/ 09 сентября 2018

Я v новый пользователь для изображения объекта SVG. И я хотел бы сделать анимацию пути один за другим, когда наведите курсор мыши на изображение SVG. Когда мышь остается на изображении объекта, анимация возвращается в исходное положение. Мой объект SVG, как показано ниже: спасибо! 

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1 Ответ

0 голосов
/ 11 сентября 2018

Прежде всего несколько комментариев:

  1. Вы можете сначала прочитать о Как работает SVG Line Animation

  2. Я не смог использовать ваш второй jsfiddle, так как это очень сложные пути, не подходящие для анимации путей. Я решил нарисовать свой собственный путь.

  3. Путь, который я оживляю, #myPath. Для построения stroke-dasharray для #myPath я использую пути в <defs>. Пожалуйста, прочитайте комментарии в JavaScript.

  4. Я анимирую путь, используя CSS-переход для атрибута stroke-dasharray. 

// the array of the lengths of the myPathGroup paths 
let lengths = [];
// the myPathGroup paths array
let paths = Array.from(myPathGroup.querySelectorAll("#myPathGroup path"));
// build the lengths array
paths.map((p) =>{lengths.push(p.getTotalLength())})
// total length of myPath
let l = myPath.getTotalLength();
// save the total length of myPath in a CSS variable
myPath.style.setProperty("--foo", l);
// build the stroke-dasharray for myPath
myPath.style.strokeDasharray = `${lengths.join(" ")} ${l} `;
svg{max-height:100vh;}
path{
fill:none; 
stroke:black;
stroke-linecap: round;
stroke-linejoin:round;
}


#myPath{stroke:red; stroke-width:1.5px;  
  stroke-dashoffset:calc(var(--foo) * 1px);
  transition: stroke-dashoffset 1s;
}

svg:hover #myPath{stroke-dashoffset:0}

#myPathGroup path{stroke:green}
<svg viewBox="318.293 -0.723 91.346 91.43">
<defs>
<g id="myPathGroup"> 
  <desc>Used to build the stroke-dasharray for myPath</desc>
  <path d="M363.966,0.712 L370.945,7.699" />
  <path d="M370.945,7.699 L372.72,9.475" display="none" />
  <path d="M372.72,9.475 L373.78,10.538" />
  <path d="M373.78,10.538 L375.381,12.139" display="none" />
  <path d="M375.381,12.139 L396.689,33.47" /> 
  <path d="M396.689,33.47 L398.054,34.836" display="none" />
  <path d="M398.054,34.836 L408.202,44.992 L385.924,67.324" />
  <path d="M385.924,67.324 L374.755,78.521" display="none" />
  <path d="M374.755,78.521 L364.008,89.293 L353.119,78.426" /> 
  <path d="M353.119,78.426 L341.877,67.205" display="none" />
  <path d="M341.877,67.205 L319.62,44.992 L363.966,0.712" />
  </g>
</defs>
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</g>
  
<path id="myPath" d="M363.966,0.712 408.202,44.992 364.008,89.293 319.62,44.992z"  />


</svg>
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