robert
/
xjs


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>SVG Morph (points) - Animal.js</title>
  <link rel="stylesheet" href="../demo.css">
  <style>
    .hint {
      color: #9a9a9a;
      font-size: 12px;
      line-height: 1.65;
      margin-top: -8px;
      margin-bottom: 16px;
    }
    .demo-visual {
      padding: 26px 30px;
      background: #151515;
      display: grid;
      grid-template-columns: 1fr 280px;
      gap: 16px;
      align-items: stretch;
    }
    .stage {
      background: rgba(0,0,0,0.25);
      border: 1px solid #262626;
      border-radius: 12px;
      padding: 14px;
      overflow: hidden;
      position: relative;
      min-height: 280px;
      display: grid;
      place-items: center;
    }
    .panel {
      background: rgba(0,0,0,0.18);
      border: 1px solid #262626;
      border-radius: 12px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      justify-content: space-between;
    }
    .control {
      display: grid;
      grid-template-columns: 90px 1fr 64px;
      gap: 10px;
      align-items: center;
    }
    .control label { color: #bdbdbd; font-size: 12px; font-weight: 800; }
    .control output { color: #e6e6e6; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; font-size: 12px; }
    input[type="range"] { width: 100%; }

    svg { width: 100%; height: 100%; max-height: 320px; }
    .shape {
      fill: rgba(255,159,67,0.14);
      stroke: rgba(255,159,67,0.55);
      stroke-width: 2;
      filter: drop-shadow(0 0 18px rgba(255,159,67,0.10));
    }
    .shape.red {
      fill: rgba(255,75,75,0.12);
      stroke: rgba(255,75,75,0.50);
      filter: drop-shadow(0 0 18px rgba(255,75,75,0.10));
    }
    .label {
      fill: rgba(255,255,255,0.22);
      font-weight: 800;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      font-size: 12px;
      letter-spacing: 0.8px;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="page-top">
      <div class="crumb">ANIMATION › SVG</div>
      <div class="since">SINCE 1.0.0</div>
    </div>

    <h1>变形动画：points（多边形）</h1>
    <p class="description">
      这是最“稳”的 morph：只要两边的 <code class="inline">points</code> 有<strong>相同数量的数字</strong>，
      就能直接做平滑过渡（本库会把字符串里的数字逐个插值）。
    </p>
    <p class="hint">
      <strong>规则：</strong>points 其实就是一串数字：<code class="inline">x1 y1 x2 y2 ...</code>。
      你想从 A 变到 B，就确保 A/B 的点数量一致（比如都 12 个点）。
    </p>

    <div class="box-container">
      <div class="box-header">
        <div class="box-title">Morph (points) code example</div>
        <div class="box-right">
          <button class="icon-btn" type="button" title="Copy" onclick="DocPage.copyActiveCode()" aria-label="Copy code">
            <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
              <rect x="9" y="9" width="13" height="13" rx="2"></rect>
              <path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"></path>
            </svg>
          </button>
          <div class="tabs" role="tablist" aria-label="Code tabs">
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          </div>
        </div>
      </div>

      <div id="js-code" class="code-view active">
<span class="kwd">const</span> star <span class="punc">=</span> <span class="str">'160 35 185 75 230 80 195 110 206 155 160 132 114 155 125 110 90 80 135 75'</span><span class="punc">;</span>
<span class="kwd">const</span> blob <span class="punc">=</span> <span class="str">'160 50 205 60 235 95 220 130 190 165 160 175 130 165 100 130 85 95 115 60'</span><span class="punc">;</span>

<span class="fun">xjs</span><span class="punc">(</span><span class="str">'#poly'</span><span class="punc">)</span>.<span class="fun">animate</span><span class="punc">({</span>
  points<span class="punc">:</span> <span class="punc">[</span>star<span class="punc">,</span> blob<span class="punc">]</span><span class="punc">,</span>
  duration<span class="punc">:</span> <span class="num">1200</span><span class="punc">,</span>
  easing<span class="punc">:</span> <span class="str">'ease-in-out'</span>
<span class="punc">}</span><span class="punc">)</span><span class="punc">;</span>
      </div>

      <div id="html-code" class="html-view">
<span class="tag">&lt;polygon</span> <span class="attr">id</span>=<span class="val">"poly"</span> <span class="attr">points</span>=<span class="val">"160 35 ..."</span> <span class="tag">/&gt;</span>
      </div>

      <pre id="css-code" class="css-view">.shape { fill: rgba(255,159,67,0.14); stroke: rgba(255,159,67,0.55); stroke-width: 2; }</pre>

      <div class="feature-desc">
        <strong>功能说明：</strong>
        <br>- 这里的 <code class="inline">points</code> 是“数字模板字符串”。本库会识别其中的数字并逐个插值。
        <br>- 适合：图标变形、加载态、装饰动效（尤其是多边形/折线）。
      </div>

      <div class="demo-visual">
        <div class="stage">
          <svg viewBox="0 0 320 220" aria-label="Morph points demo">
            <polygon id="poly" class="shape"
              points="160 35 185 75 230 80 195 110 206 155 160 132 114 155 125 110 90 80 135 75"></polygon>
            <polygon id="poly2" class="shape red" opacity="0.65"
              points="160 50 205 60 235 95 220 130 190 165 160 175 130 165 100 130 85 95 115 60"></polygon>
            <text class="label" x="160" y="210" text-anchor="middle">points morph (same number tokens)</text>
          </svg>
        </div>
        <div class="panel">
          <div>
            <div class="control">
              <label for="dur">duration</label>
              <input id="dur" type="range" min="200" max="3200" step="50" value="1200" />
              <output id="durOut">1200ms</output>
            </div>
            <div class="control">
              <label for="loop">loop</label>
              <input id="loop" type="range" min="1" max="6" step="1" value="2" />
              <output id="loopOut">2</output>
            </div>
          </div>
          <div style="display:flex; gap:10px; justify-content:flex-end;">
            <button class="play-btn secondary" onclick="pauseDemo()">PAUSE</button>
            <button class="play-btn secondary" onclick="resumeDemo()">RESUME</button>
            <button class="play-btn" onclick="runDemo()">REPLAY</button>
          </div>
        </div>
      </div>
    </div>

    <div class="doc-nav" aria-label="Previous and next navigation">
      <a href="#" onclick="goPrev(); return false;">
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      <a href="#" onclick="goNext(); return false;">
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  </div>

  <div id="toast" class="toast" role="status" aria-live="polite"></div>

  <script src="../page_utils.js?v=1"></script>
  <script src="../../xjs.js?v=1"></script>
  <script>
    const CURRENT = 'svg/test_morph_points.html';
    let __ctls = [];

    const poly = document.getElementById('poly');
    const poly2 = document.getElementById('poly2');
    const dur = document.getElementById('dur');
    const loop = document.getElementById('loop');
    const durOut = document.getElementById('durOut');
    const loopOut = document.getElementById('loopOut');

    const STAR = '160 35 185 75 230 80 195 110 206 155 160 132 114 155 125 110 90 80 135 75';
    const BLOB = '160 50 205 60 235 95 220 130 190 165 160 175 130 165 100 130 85 95 115 60';

    function read() {
      const d = Number(dur.value);
      const l = Number(loop.value);
      durOut.textContent = d + 'ms';
      loopOut.textContent = String(l);
      return { d, l };
    }

    function reset() {
      (__ctls || []).forEach(c => { try { c?.cancel?.(); } catch {} });
      __ctls = [];
      poly.setAttribute('points', STAR);
      poly2.setAttribute('points', BLOB);
    }

    function runDemo() {
      reset();
      const { d, l } = read();
      __ctls.push(xjs(poly).animate({
        points: [STAR, BLOB],
        duration: d,
        easing: 'ease-in-out',
        direction: 'alternate',
        loop: l
      }));
      __ctls.push(xjs(poly2).animate({
        points: [BLOB, STAR],
        duration: d,
        easing: 'ease-in-out',
        direction: 'alternate',
        loop: l
      }));
    }

    function pauseDemo() { (__ctls || []).forEach(c => { try { c?.pause?.(); } catch {} }); }
    function resumeDemo() { (__ctls || []).forEach(c => { try { c?.play?.(); } catch {} }); }

    dur.addEventListener('input', read);
    loop.addEventListener('input', read);

    function goPrev() { window.parent?.docNavigatePrev?.(CURRENT); }
    function goNext() { window.parent?.docNavigateNext?.(CURRENT); }

    DocPage.enableTabKeyboardNav();
    DocPage.syncMiddleActive(CURRENT);
    DocPage.syncPrevNext(CURRENT);
    read();
    setTimeout(runDemo, 320);
  </script>
</body>
</html>