动画帧

Question

任何人都可以帮助我了解如何使用js或css完成帧动画。我实际上试图获得与here相同的动画。我对道路动画的工作原理感到困惑。是这样做的插件还是简单的js和css

Answer 1

1. 我是以图像（SVG）格式制作的。
2. 我使用纯HTML5和CSS3动画制作动画。
3. 使用课程.path和@keyframes。
4. 不幸的是，在IE和Safari中不支持。

以下是代码：

.line{
    width: 65%;
    margin: 0 auto;
}

svg{
     display: block;
}

#svg path.path{
    stroke-dasharray: 3000;
    stroke-dashoffset: 4000;
    stroke-width: 2;
    
    -webkit-animation:lines 5s linear forwards;
    -moz-animation:lines 5s linear forwards;
    -ms-animation:lines 5s linear forwards;
    -0-animation:lines 5s linear forwards;
    animation: lines 5s linear forwards;
}

@keyframes lines {
form { stroke-dashoffset:4000;}
  to { stroke-dashoffset: 0; }  
}

@-webkit-keyframes lines {
form { stroke-dashoffset:4000;}
  to { stroke-dashoffset: 0; }  
}

@-moz-keyframes lines {
 form { stroke-dashoffset:4000;}
  to { stroke-dashoffset: 0;}  
}

@-ms-keyframes lines {
 form { stroke-dashoffset:4000;}
  to { stroke-dashoffset: 0; }
}

@-o-keyframes lines {
 form { stroke-dashoffset:4000;}
  to { stroke-dashoffset: 0; }

}

<div class="line">
  <svg id="svg" stroke="#000" stroke-miterlimit="1000" id="Layer_1" style="opacity:1;" x="0px" y="0px" viewBox="0 0 960 560" enable-background="new 0 0 960 560" xml:space="preserve">
    <path class="path" fill="#fff" stroke="#000" stroke-miterlimit="1000" stroke-dasharray="11.9901,11.9901" d="M52.652,248.08
			c30.97,37.245,74.957,63.396,122.172,75.244c53.056,13.313,109.816,9.162,161.756-7.968
			c42.308-13.953,83.007-37.533,108.174-74.156c4.655-6.774,8.818-14.153,10.027-22.271c2.24-15.044-6.187-29.969-17.51-40.177
			c-28.483-25.679-73.116-26.422-108.534-11.588c-54.196,22.698-92.323,81.422-86.252,139.649
			c6.07,58.228,59.091,109.265,117.886,109.022c20.716-0.085,41.065-5.884,60.092-14.042c18.307-7.85,35.789-18.023,50.322-31.606
			c14.503-13.555,25.718-30.139,37.837-45.845c17.476-22.649,37.883-44.311,64.254-55.552c26.37-11.241,59.879-9.795,80.612,9.943
			c30.67,29.196,23.317,84.899,56.145,111.668c29.1,23.729,74.437,10.683,102.618-14.121c32.31-28.438,51.374-68.875,65.118-109.573
			c12.464-36.907,21.327-75.103,35.836-111.202" />
  </svg>
</div>

See the code in "Code Pen"

我希望这会对您有所帮助，并欢迎所有人，如果我可以编辑我的代码以支持IE和Safari。