为SVG渐变条设置动画，使其显示为填充停止颜色

时间：2018-02-24 17:48:33

标签： css svg

我有一个带有渐变的条形图，我正试图制作动画，就像从不同的颜色到不同的颜色，从左侧到右侧。最终结果应该冻结渐变颜色。

如何使用SMIL进行操作？

我能用css动画实现这个吗？

here's the code and a non working fiddle example: 

<svg xmlns="http://www.w3.org/2000/svg"  height="100%" viewBox="0 0 744.094 871.654">
  <g 
    <defs>
      <linearGradient id="myGrad" >
        /* Are my offset correct? or should it rise from 0 to 100? */
        <stop offset="25%" stop-color="yellow" />
        <stop offset="25%" stopColor="green" />
        <stop offset="25%" stopColor="blue" />
        <stop offset="25%" stopColor="blue" />
        <stop offset="25%" stopColor="red" />
        <animate
          attributeName="stop-color"
          /* What should I animate here and how? */
          dur="4s"  />
      </linearGradient>
    </defs>
<path d="M740.096 599.704c-.027-8.88-7.245-16.055-16.123-16.028-8.88.03-16.055 7.248-16.028 16.127.014 4.4 1.8 8.377 4.668 11.272-8.59 28.308-21.002 55.294-37.011 80.391A328.59 328.59 0 0 1 635.908 742l-.266-.25a363.91 363.91 0 0 1-26.633 25.27 16.081 16.081 0 0 0-6.03-1.157c-8.877.027-16.054 7.246-16.025 16.125.002.803.08 1.583.198 2.35a347.143 347.143 0 0 1-6.908 4.942c-32.778 22.805-68.54 39.69-106.458 50.321a16.04 16.04 0 0 0-11.487-4.781c-7.366.022-13.545 5.004-15.425 11.768a382.23 382.23 0 0 1-64.675 5.518c-.74 0-1.483 0-2.226-.01a381.546 381.546 0 0 1-97.874-13.344c-1.671-7.411-8.299-12.947-16.216-12.925a16.533 16.533 0 0 0-10.72 3.992 387.615 387.615 0 0 1-55.212-25.694 387.43 387.43 0 0 1-70.985-51.554c.345-1.34.548-2.741.545-4.197-.031-9.154-7.475-16.551-16.63-16.527a16.874 16.874 0 0 0-3.306.344 347.345 347.345 0 0 1-35.2-46.19 346.111 346.111 0 0 1-37.443-79.483 16.52 16.52 0 0 0 4.7-11.606c-.03-9.154-7.473-16.554-16.629-16.527-9.157.028-16.556 7.476-16.527 16.63.024 7.932 5.62 14.537 13.065 16.146a362.193 362.193 0 0 0 39.28 83.476 363.588 363.588 0 0 0 36.575 48.045 16.476 16.476 0 0 0-1.042 5.794c.025 9.154 7.47 16.556 16.626 16.528a16.46 16.46 0 0 0 4.932-.76 403.53 403.53 0 0 0 74.128 53.867 403.134 403.134 0 0 0 57.52 26.77c1.203 8 8.095 14.133 16.424 14.109a16.53 16.53 0 0 0 11.606-4.8 397.583 397.583 0 0 0 14.54 3.959l.07-.279a397.86 397.86 0 0 0 87.68 10.298c.775.01 1.545.01 2.32.01a398.45 398.45 0 0 0 68.72-5.99 16.018 16.018 0 0 0 11.481 4.782c6.838-.024 12.648-4.317 14.953-10.342.514-.127 1.031-.243 1.545-.373l-.327-1.3c39.487-11.13 76.72-28.736 110.85-52.484a361.937 361.937 0 0 0 7.78-5.563 16.115 16.115 0 0 0 5.876 1.107c8.88-.032 16.055-7.25 16.026-16.13 0-.72-.068-1.424-.162-2.118 27.448-22.866 51.049-49.615 70.208-79.658a340.632 340.632 0 0 0 38.989-84.832c6.898-1.825 11.982-8.104 11.957-15.574"
        fill="url(#myGrad)" />
  </g>
</svg>

感谢评论更新了提琴手 SEE HERE

2 个答案:

答案 0 :(得分：0)

我不确定你想让动画看起来像什么，但是这是用SMIL做的一种方法...

请注意，您的一些停止颜色属性无效，因为您已经使用驼峰编写了这些属性。我也在下面纠正了这一点。

<svg xmlns="http://www.w3.org/2000/svg"  height="100%" viewBox="0 550 744.094 871.654">
  <g> 
    <defs>
      <linearGradient id="myGrad" >
        <stop offset="0%" stop-color="yellow"/>
        <stop offset="0%" stop-color="green">
        <animate
          attributeName="offset"
          to="25%"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0%" stop-color="blue">
        <animate
          attributeName="offset"
          to="50%"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0%" stop-color="blue">
        <animate
          attributeName="offset"
          to="75%"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0%" stop-color="red">
        <animate
          attributeName="offset"
          to="100%"
          dur="4s" fill="freeze"/>
        </stop>
      </linearGradient>
    </defs>
<path d="M740.096 599.704c-.027-8.88-7.245-16.055-16.123-16.028-8.88.03-16.055 7.248-16.028 16.127.014 4.4 1.8 8.377 4.668 11.272-8.59 28.308-21.002 55.294-37.011 80.391A328.59 328.59 0 0 1 635.908 742l-.266-.25a363.91 363.91 0 0 1-26.633 25.27 16.081 16.081 0 0 0-6.03-1.157c-8.877.027-16.054 7.246-16.025 16.125.002.803.08 1.583.198 2.35a347.143 347.143 0 0 1-6.908 4.942c-32.778 22.805-68.54 39.69-106.458 50.321a16.04 16.04 0 0 0-11.487-4.781c-7.366.022-13.545 5.004-15.425 11.768a382.23 382.23 0 0 1-64.675 5.518c-.74 0-1.483 0-2.226-.01a381.546 381.546 0 0 1-97.874-13.344c-1.671-7.411-8.299-12.947-16.216-12.925a16.533 16.533 0 0 0-10.72 3.992 387.615 387.615 0 0 1-55.212-25.694 387.43 387.43 0 0 1-70.985-51.554c.345-1.34.548-2.741.545-4.197-.031-9.154-7.475-16.551-16.63-16.527a16.874 16.874 0 0 0-3.306.344 347.345 347.345 0 0 1-35.2-46.19 346.111 346.111 0 0 1-37.443-79.483 16.52 16.52 0 0 0 4.7-11.606c-.03-9.154-7.473-16.554-16.629-16.527-9.157.028-16.556 7.476-16.527 16.63.024 7.932 5.62 14.537 13.065 16.146a362.193 362.193 0 0 0 39.28 83.476 363.588 363.588 0 0 0 36.575 48.045 16.476 16.476 0 0 0-1.042 5.794c.025 9.154 7.47 16.556 16.626 16.528a16.46 16.46 0 0 0 4.932-.76 403.53 403.53 0 0 0 74.128 53.867 403.134 403.134 0 0 0 57.52 26.77c1.203 8 8.095 14.133 16.424 14.109a16.53 16.53 0 0 0 11.606-4.8 397.583 397.583 0 0 0 14.54 3.959l.07-.279a397.86 397.86 0 0 0 87.68 10.298c.775.01 1.545.01 2.32.01a398.45 398.45 0 0 0 68.72-5.99 16.018 16.018 0 0 0 11.481 4.782c6.838-.024 12.648-4.317 14.953-10.342.514-.127 1.031-.243 1.545-.373l-.327-1.3c39.487-11.13 76.72-28.736 110.85-52.484a361.937 361.937 0 0 0 7.78-5.563 16.115 16.115 0 0 0 5.876 1.107c8.88-.032 16.055-7.25 16.026-16.13 0-.72-.068-1.424-.162-2.118 27.448-22.866 51.049-49.615 70.208-79.658a340.632 340.632 0 0 0 38.989-84.832c6.898-1.825 11.982-8.104 11.957-15.574"
        fill="url(#myGrad)" />
  </g>
</svg>

看起来Chrome有一个错误，它不会为百分比的偏移设置动画。这是一个解决方法... 

<svg xmlns="http://www.w3.org/2000/svg"  height="100%" viewBox="0 550 744.094 871.654">
  <g> 
    <defs>
      <linearGradient id="myGrad" >
        <stop offset="0%" stop-color="yellow"/>
        <stop offset="0" stop-color="green">
        <animate
          attributeName="offset"
          to=".25"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0" stop-color="blue">
        <animate
          attributeName="offset"
          to=".5"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0" stop-color="blue">
        <animate
          attributeName="offset"
          to=".75"
          dur="4s" fill="freeze"/>
        </stop>
        <stop offset="0" stop-color="red">
        <animate
          attributeName="offset"
          to="1"
          dur="4s" fill="freeze"/>
        </stop>
      </linearGradient>
    </defs>
<path d="M740.096 599.704c-.027-8.88-7.245-16.055-16.123-16.028-8.88.03-16.055 7.248-16.028 16.127.014 4.4 1.8 8.377 4.668 11.272-8.59 28.308-21.002 55.294-37.011 80.391A328.59 328.59 0 0 1 635.908 742l-.266-.25a363.91 363.91 0 0 1-26.633 25.27 16.081 16.081 0 0 0-6.03-1.157c-8.877.027-16.054 7.246-16.025 16.125.002.803.08 1.583.198 2.35a347.143 347.143 0 0 1-6.908 4.942c-32.778 22.805-68.54 39.69-106.458 50.321a16.04 16.04 0 0 0-11.487-4.781c-7.366.022-13.545 5.004-15.425 11.768a382.23 382.23 0 0 1-64.675 5.518c-.74 0-1.483 0-2.226-.01a381.546 381.546 0 0 1-97.874-13.344c-1.671-7.411-8.299-12.947-16.216-12.925a16.533 16.533 0 0 0-10.72 3.992 387.615 387.615 0 0 1-55.212-25.694 387.43 387.43 0 0 1-70.985-51.554c.345-1.34.548-2.741.545-4.197-.031-9.154-7.475-16.551-16.63-16.527a16.874 16.874 0 0 0-3.306.344 347.345 347.345 0 0 1-35.2-46.19 346.111 346.111 0 0 1-37.443-79.483 16.52 16.52 0 0 0 4.7-11.606c-.03-9.154-7.473-16.554-16.629-16.527-9.157.028-16.556 7.476-16.527 16.63.024 7.932 5.62 14.537 13.065 16.146a362.193 362.193 0 0 0 39.28 83.476 363.588 363.588 0 0 0 36.575 48.045 16.476 16.476 0 0 0-1.042 5.794c.025 9.154 7.47 16.556 16.626 16.528a16.46 16.46 0 0 0 4.932-.76 403.53 403.53 0 0 0 74.128 53.867 403.134 403.134 0 0 0 57.52 26.77c1.203 8 8.095 14.133 16.424 14.109a16.53 16.53 0 0 0 11.606-4.8 397.583 397.583 0 0 0 14.54 3.959l.07-.279a397.86 397.86 0 0 0 87.68 10.298c.775.01 1.545.01 2.32.01a398.45 398.45 0 0 0 68.72-5.99 16.018 16.018 0 0 0 11.481 4.782c6.838-.024 12.648-4.317 14.953-10.342.514-.127 1.031-.243 1.545-.373l-.327-1.3c39.487-11.13 76.72-28.736 110.85-52.484a361.937 361.937 0 0 0 7.78-5.563 16.115 16.115 0 0 0 5.876 1.107c8.88-.032 16.055-7.25 16.026-16.13 0-.72-.068-1.424-.162-2.118 27.448-22.866 51.049-49.615 70.208-79.658a340.632 340.632 0 0 0 38.989-84.832c6.898-1.825 11.982-8.104 11.957-15.574"
        fill="url(#myGrad)" />
  </g>
</svg>

答案 1 :(得分：0)

也许你想要这样的东西：

<svg xmlns="http://www.w3.org/2000/svg" height="100%" viewBox="0 550 744.094 871.654">
    <defs>
      <linearGradient id="myGrad" >
        <stop offset="0" stop-color="yellow">
                <animate attributeName="offset" values="0" dur="2s" fill="freeze"  /> 
            </stop>
        <stop offset="0" stop-color="green" >
            <animate attributeName="offset" values="0;.2" dur="2s" fill="freeze"  /> 
        </stop>
        <stop offset="0" stop-color="blue" >
        <animate attributeName="offset" values="0;.5" dur="2s" fill="freeze"  /> 
        </stop>
        <stop offset="0" stop-color="red" >
            <animate attributeName="offset" values="0;1" dur="2s" fill="freeze"  /> 
        </stop>
        <stop offset="1" stop-color="transparent" />
        <animate />
      </linearGradient>
    </defs>
<path d="M740.096 599.704c-.027-8.88-7.245-16.055-16.123-16.028-8.88.03-16.055 7.248-16.028 16.127.014 4.4 1.8 8.377 4.668 11.272-8.59 28.308-21.002 55.294-37.011 80.391A328.59 328.59 0 0 1 635.908 742l-.266-.25a363.91 363.91 0 0 1-26.633 25.27 16.081 16.081 0 0 0-6.03-1.157c-8.877.027-16.054 7.246-16.025 16.125.002.803.08 1.583.198 2.35a347.143 347.143 0 0 1-6.908 4.942c-32.778 22.805-68.54 39.69-106.458 50.321a16.04 16.04 0 0 0-11.487-4.781c-7.366.022-13.545 5.004-15.425 11.768a382.23 382.23 0 0 1-64.675 5.518c-.74 0-1.483 0-2.226-.01a381.546 381.546 0 0 1-97.874-13.344c-1.671-7.411-8.299-12.947-16.216-12.925a16.533 16.533 0 0 0-10.72 3.992 387.615 387.615 0 0 1-55.212-25.694 387.43 387.43 0 0 1-70.985-51.554c.345-1.34.548-2.741.545-4.197-.031-9.154-7.475-16.551-16.63-16.527a16.874 16.874 0 0 0-3.306.344 347.345 347.345 0 0 1-35.2-46.19 346.111 346.111 0 0 1-37.443-79.483 16.52 16.52 0 0 0 4.7-11.606c-.03-9.154-7.473-16.554-16.629-16.527-9.157.028-16.556 7.476-16.527 16.63.024 7.932 5.62 14.537 13.065 16.146a362.193 362.193 0 0 0 39.28 83.476 363.588 363.588 0 0 0 36.575 48.045 16.476 16.476 0 0 0-1.042 5.794c.025 9.154 7.47 16.556 16.626 16.528a16.46 16.46 0 0 0 4.932-.76 403.53 403.53 0 0 0 74.128 53.867 403.134 403.134 0 0 0 57.52 26.77c1.203 8 8.095 14.133 16.424 14.109a16.53 16.53 0 0 0 11.606-4.8 397.583 397.583 0 0 0 14.54 3.959l.07-.279a397.86 397.86 0 0 0 87.68 10.298c.775.01 1.545.01 2.32.01a398.45 398.45 0 0 0 68.72-5.99 16.018 16.018 0 0 0 11.481 4.782c6.838-.024 12.648-4.317 14.953-10.342.514-.127 1.031-.243 1.545-.373l-.327-1.3c39.487-11.13 76.72-28.736 110.85-52.484a361.937 361.937 0 0 0 7.78-5.563 16.115 16.115 0 0 0 5.876 1.107c8.88-.032 16.055-7.25 16.026-16.13 0-.72-.068-1.424-.162-2.118 27.448-22.866 51.049-49.615 70.208-79.658a340.632 340.632 0 0 0 38.989-84.832c6.898-1.825 11.982-8.104 11.957-15.574"
        fill="url(#myGrad)" />
</svg>

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