SVG动画实现文本纹理动态效果

时间：6年前阅读：5019

SVG

　　如果要对文本纹理做更精密的设置，且考虑浏览器兼容性，最好的方案还是使用SVG文本

　　首先，可以通过SVG动画，来实现文本纹理的动态效果

Bash

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
</head>
<body>
<svg height="100" xmlns="http://www.w3.org/2000/svg" id="svg">
  <defs>
    <style>
     .text{font:bolder 50px/100px Impact;} 
    </style>  
    <radialGradient id="Gradient1">
      <animate attributeName="r" values="0%;150%;100%;0%" dur="5" repeatCount="indefinite" />
      <stop offset="0%" stop-color="#fff">
        <animate attributeName="stop-color" values="#333;#FFF;#FFF;#333" dur="5" repeatCount="indefinite" />
      </stop>
      <stop offset="100%" stop-color="rgba(55,55,55,0)"/>
    </radialGradient>
  </defs>  
  <text class="text" dominant-baseline="hanging" y="10" x="0" fill="url(#Gradient1)">期权记</text>
</svg>
</body>
</html>

使用SVG图案pattern，可以实现更精细的纹理动画效果

Bash

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
</head>
<body>
<svg height="100" xmlns="http://www.w3.org/2000/svg" id="svg">
  <defs>
    <style>
      .text{font:bolder 100px/100px Impact;}   
      @keyframes stroke {
        50% {
          stroke-width:30;
          stroke-opacity: .5;
        }
      } 
      .g-spots circle{stroke-width: 0;animation: stroke 2s infinite;}
      .g-spots circle:nth-child(1) {animation-delay: -0.4s;}
      .g-spots circle:nth-child(2) {animation-delay: -1.2s;}
    </style>  
  <pattern id="p-spots" width="0.12" height="0.2">
    <g class="g-spots">
      <circle r="10" cx="10" cy="5" fill="#3F0B1B" stroke="#3F0B1B" />
      <circle r="10" cx="25" cy="20" fill="#CF423C" stroke="#CF423C"/> 
    </g>
  </pattern>
  </defs>  
  <text class="text" dominant-baseline="hanging" y="10" x="0" stroke="url(#p-spots)" fill="none" stroke-width="5" stroke-opacity="0.5">期权记</text>
</svg>
</body>
</html>

如果想实现虚线动画的效果，则需要使用SVG文本的虚线描边

Bash

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
</head>
<body>
<svg height="100" xmlns="http://www.w3.org/2000/svg" id="svg">
  <defs>
    <style>
      @keyframes stroke {100% { stroke-dashoffset: -400;}}    
      .text{font:bolder 95px/100px Impact;} 
      .use-text{fill: none;stroke-width: 6;stroke-dasharray: 70 330;stroke-dashoffset: 0;animation: stroke 6s infinite linear;}
      .use-text:nth-child(5n+1){stroke: pink;animation-delay: -1.2s;}
      .use-text:nth-child(5n+2){stroke: lightblue;animation-delay: -2.4s;}
      .use-text:nth-child(5n+3){stroke: lightgreen;animation-delay: -3.6s;}
      .use-text:nth-child(5n+4){stroke: orange;animation-delay: -4.8s;}
      .use-text:nth-child(5n+5){stroke: tan;animation-delay: -6s;}
    </style>  
  </defs>  
  <symbol id="s-text">
    <text class="text" dominant-baseline="hanging" y="10" x="0" >例子03</text>
  </symbol>  
  <use xlink:href="#s-text" class="use-text"></use>
  <use xlink:href="#s-text" class="use-text"></use>
  <use xlink:href="#s-text" class="use-text"></use>
  <use xlink:href="#s-text" class="use-text"></use>
  <use xlink:href="#s-text" class="use-text"></use>  
</svg>
</body>
</html>

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SVG动画实现文本纹理动态效果

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