Question

我正在尝试制作播放和停止按钮。我不知道如何在点击时将三角形形状（它是一条路径）变形为方形（它是一条路径）。仅一次显示一个形状。有人可以帮忙吗？

<svg class="playStop" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 971 530" style="enable-background:new 0 0 971 530;" xml:space="preserve">
<style type="text/css">

    .st0{fill:none;
    stroke:#000000;
    stroke-width:4;
    stroke-miterlimit:10;}
</style>

<path id="playTriangle" class="st0" d="M432,290.7V187.8c0-11.4,9.2-20.7,20.6-20.8c3.2,0,6.3,0.7,9.2,2.2l86.9,43.3l16.2,8.1c10.2,5,14.5,17.5,9.4,27.7c-2,4.1-5.3,7.5-9.4,9.5l-13.4,6.7l-89.8,44.8c-10.2,5-22.6,0.8-27.6-9.5C432.7,297,432,293.9,432,290.7z"/>

<path id="stopSquare" class="st0" d="M458.6,167h91.3c14.7,0,26.6,11.9,26.6,26.6v91.3c0,14.7-11.9,26.6-26.6,26.6h-91.3c-14.7,0-26.6-11.9-26.6-26.6v-91.3C432,178.9,443.9,167,458.6,167z"/>

</svg>

Answer 1

我认为一种方法是在defs中定义您的两个路径，然后使用带有onclick处理程序的use xlink:href="#shapeName"切换该属性或相应的DOM属性（如果支持）。

具有完全实现的SVG DOM的use元素对象具有href属性，具有可以读取和设置的baseVal属性，因此在我测试的内部浏览器中（使用Firefox，Chrome，IE和Edge on Window）我们可以简单地切换该属性，请参阅https://jsfiddle.net/4x0gnkob/获取在线样本。

  .st0{fill:none;
    stroke:#000000;
    stroke-width:4;
    stroke-miterlimit:10;}

<svg class="playStop" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 971 530" style="enable-background:new 0 0 971 530;" xml:space="preserve">

  <defs>
    <path id="playTriangle" class="st0" d="M432,290.7V187.8c0-11.4,9.2-20.7,20.6-20.8c3.2,0,6.3,0.7,9.2,2.2l86.9,43.3l16.2,8.1c10.2,5,14.5,17.5,9.4,27.7c-2,4.1-5.3,7.5-9.4,9.5l-13.4,6.7l-89.8,44.8c-10.2,5-22.6,0.8-27.6-9.5C432.7,297,432,293.9,432,290.7z"/>

<path id="stopSquare" class="st0" d="M458.6,167h91.3c14.7,0,26.6,11.9,26.6,26.6v91.3c0,14.7-11.9,26.6-26.6,26.6h-91.3c-14.7,0-26.6-11.9-26.6-26.6v-91.3C432,178.9,443.9,167,458.6,167z"/>


  </defs>
  <use xlink:href="#playTriangle" pointer-events="all" onclick="this.href.baseVal = this.href.baseVal == '#playTriangle' ? '#stopSquare' : '#playTriangle';"></use>
  </svg>

另一种方法是切换DOM属性，在HTML5环境中看起来有点复杂，因为我认为我可以用setAttributeNS和getAttributeNS在一行中解决它，经过一些测试后看起来似乎在HTML5中getAttribute('xlink:href')效果更好，因此完整代码会尝试测试哪个函数返回一个值。

function toggleLink(element, value1, value2) {
  var xlinkNS = 'http://www.w3.org/1999/xlink';
  var linkName = 'xlink:href';
  var oldValue = element.getAttributeNS(xlinkNS, linkName) || element.getAttribute(linkName);
  if (element.hasAttributeNS(xlinkNS, 'href')) {
    element.setAttributeNS(xlinkNS, linkName, oldValue == value1 ? value2 : value1)
  }
  else {
    element.setAttribute(linkName, oldValue == value1 ? value2 : value1);
  }
}

    .st0{fill:none;
    stroke:#000000;
    stroke-width:4;
    stroke-miterlimit:10;}

<svg class="playStop" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
     viewBox="0 0 971 530" style="enable-background:new 0 0 971 530;" xml:space="preserve">

  <defs>
    <path id="playTriangle" class="st0" d="M432,290.7V187.8c0-11.4,9.2-20.7,20.6-20.8c3.2,0,6.3,0.7,9.2,2.2l86.9,43.3l16.2,8.1c10.2,5,14.5,17.5,9.4,27.7c-2,4.1-5.3,7.5-9.4,9.5l-13.4,6.7l-89.8,44.8c-10.2,5-22.6,0.8-27.6-9.5C432.7,297,432,293.9,432,290.7z"/>

<path id="stopSquare" class="st0" d="M458.6,167h91.3c14.7,0,26.6,11.9,26.6,26.6v91.3c0,14.7-11.9,26.6-26.6,26.6h-91.3c-14.7,0-26.6-11.9-26.6-26.6v-91.3C432,178.9,443.9,167,458.6,167z"/>


  </defs>
  <use xlink:href="#playTriangle" pointer-events="all" onclick="toggleLink(this, '#stopSquare', '#playTriangle')"></use>
  </svg>

在https://jsfiddle.net/w36k21uz/1/在线。

Answer 2

你无法做到这一切，你可以使用SMIL，这是不推荐的，或者使用专用的动画引擎。我使用SVG Plugin开发了KUTE.js，它完成了SVG可能需要的大部分工作。

快速演示（由于某些Stackoverflow XSS问题，应仅在Firefox中运行）：

＆＃13;

<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}).start();

document.addEventListener('click', function(){
    !tween.playing && tween.start();
}, false);
</script>

＆＃13;

如何在单击命令中将一个SVG路径元素变形为另一个？

2 个答案: