javascript 如何使用 snap.svg 为路径变形设置动画
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How to animate path morphs using snap.svg
提问by Les Ballard
I have been searching for a good example on how to animate a svg path morph. I know how to do do pretty complex ones using SMIL, but snap.svg is new and shiny, and everyone seems to love it, so I'd like to take a look. I can't find a good example anywhere on how to do n animated path morph anywhere. Hopefully a snap.svg guru could point me in the right direction?
我一直在寻找一个关于如何为 svg 路径变形设置动画的好例子。我知道如何使用 SMIL 做一些非常复杂的事情，但是 snap.svg 是新的、闪亮的，而且每个人似乎都喜欢它，所以我想看看。我在任何地方都找不到关于如何在任何地方进行 n 动画路径变形的好例子。希望 snap.svg 大师可以为我指明正确的方向？
here's a link to the svg image and the code for it:
这是 svg 图像及其代码的链接：
<svg xmlns="http://www.w3.org/2000/svg" width="600" height="400">
<path id="thing" d="M94.2,265.7L82,203.4c43.3-15.6,83.8-29.2,137.1-20.2c61.5-27.6,126.1-56.9,202.6-46.1c18.7,18.9,21.5,39.8,12.2,62.3C322.7,231.9,208.2,247.6,94.2,265.7z">
<animate id="myAnimationElement" dur="2s" begin="0" repeatCount="indefinite" attributeName="d"
values="M94.2,265.7L82,203.4c43.3-15.6,83.8-29.2,137.1-20.2c61.5-27.6,126.1-56.9,202.6-46.1c18.7,18.9,21.5,39.8,12.2,62.3C322.7,231.9,208.2,247.6,94.2,265.7z;
M179.4,83.5l62.4-11.8c15.3,43.4-76,102.6-22.6,111.5c61.5-27.6,126.1-56.9,202.6-46.1c18.7,18.9,21.5,39.8,12.2,62.3C250.6,296.7,52.4,259.2,179.4,83.5z;"/>
</path>
</svg>
回答by Ian
Not quite sure if you mean you just want the current animation in Snap or something different. Just to give an example of how one would typically do some animation...
不太确定你的意思是你只想要 Snap 中的当前动画或不同的东西。只是举个例子说明一个人通常会如何做一些动画......
s = Snap(400, 620);
var path = s.path("M94.2,265.7L82,203.4c43.3-15.6,83.8-29.2,137.1-20.2c61.5-27.6,126.1-56.9,202.6 46.1c18.7,18.9,21.5,39.8,12.2,62.3C322.7,231.9,208.2,247.6,94.2,265.7z");
path.animate({ d: "M179.4,83.5l62.4-11.8c15.3,43.4-76,102.6-22.6,111.5c61.5-27.6,126.1-56.9,202.6-46.1c18.7,18.9,21.5,39.8,12.2,62.3C250.6,296.7,52.4,259.2,179.4,83.5z" }, 1000, mina.bounce);
Edit: There needs to be the same amount of points on the path to morph from/to.
编辑：从/到的路径上需要有相同数量的点。
回答by thednp
If you're looking for something only for SVG Morph, you may not need the entire SnapSVG library, you can use KUTE.js. Really, take a look at this (Best viewed in Chrome and Firefox):
如果您正在寻找仅适用于 SVG Morph 的东西，您可能不需要整个 SnapSVG 库，您可以使用KUTE.js。真的，看看这个（最好在 Chrome 和 Firefox 中查看）：
<div style="width: 220px">
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 600 600">
<path id="rectangle" fill="indigo" d="M38.01,5.653h526.531c17.905,0,32.422,14.516,32.422,32.422v526.531
c0,17.905-14.517,32.422-32.422,32.422H38.01c-17.906,0-32.422-14.517-32.422-32.422V38.075C5.588,20.169,20.104,5.653,38.01,5.653z"></path>
<path id="star" style="visibility:hidden" d="M301.113,12.011l99.25,179.996l201.864,38.778L461.706,380.808
l25.508,203.958l-186.101-87.287L115.01,584.766l25.507-203.958L0,230.785l201.86-38.778L301.113,12.011"></path>
</svg>
</div>
<script id="core" src="https://cdn.jsdelivr.net/kute.js/1.5.5/kute.min.js"></script>
<script id="svg" src="https://cdn.jsdelivr.net/kute.js/1.5.5/kute-svg.min.js"></script>
<script>
var tween = KUTE.to('#rectangle', { path: '#star' }, {duration: 1500, yoyo: true, repeat: 1, morphIndex: 127}).start();
document.addEventListener('click', function(){
!tween.playing && tween.start();
}, false);
</script>It's free and really easy to use.
它是免费的，而且非常易于使用。
