如何在SVG中顺时针为饼图onLoad设置动画 [英] How do I clockwise animate Pie Chart onLoad in SVG

问题描述

我陷入了饼状图的困境，该饼状图应按顺时针onLoad进行动画处理.这是我的饼图小提琴

I am stuck with pie chart which should animate clockwise onLoad. Here, is my pie chart fiddle

例如，我需要此动画来处理更轻松的曲线路径，

I need this animation to work with brezier curve paths, for instance,

<path d="M 276 63.03 C 329.93 63.03 381.86 78.24 421.4 105.63 L 276 222.79 M 276 63.03" />

我也知道，可以使用snap.svg库实现此功能，但在这种情况下无法进行锻炼.

I am also aware that, it can be achieved using snap.svg library but is unable workout in this case.

感谢您的帮助.

提前谢谢！

推荐答案

您可以使用嵌套的animate并以渐进的延迟更改某些属性.

You can use a nested animate and change some attribute with a progressive delay.

在此示例中，我将笔划g放置在每个切片的填充g内，并在其中添加了animate元素，每个动画均以0.5s开始.我为opacity属性设置了动画(因此我为每个元素添加了opacity="0"属性；您可以将其替换为另一个属性).这是第二个片段:

In this example I placed the stroke g inside the fill g for each slice, and added an animate element inside, each animation starting 0.5s. I animated the opacity attribute (so I added an opacity="0" attribute for each element; you can replace it for another attribute). This is the second slice:

<g id="pieFillSection2" opacity="0" style="fill: yellow;fill-opacity: 1.0; stroke: none" transform="matrix(1,0,0,1,0,0)" >
    <animate attributeName="opacity" from="0" to="1"
             begin="0.5s" dur="1s" fill="freeze"/>
    <path d="M 421.4 105.63 C 483.64 148.74 505.87 215.26 478.05 275.16 C 450.23 335.05 377.64 377 293.04 382.05 L 276 222.79 M 421.4 105.63" />
    <g class="pieStroke" id="pieStrokeSection2" style="stroke-width: 1.0;stroke: rgb(128,128,128);stroke-opacity: 1.0; fill: none" transform="matrix(1,0,0,1,0,0)" >
        <path d="M 421.4 105.63 C 483.64 148.74 505.87 215.26 478.05 275.16 C 450.23 335.05 377.64 377 293.04 382.05 L 276 222.79 M 421.4 105.63" />
    </g>
</g>

检查更新的 JSFiddle .

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