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+<!DOCTYPE html>
+<html>
+<head>
+ <title>Lottie Filmstrip Capture</title>
+ <meta charset="utf-8" />
+ <meta http-equiv="X-UA-Compatible" content="IE=egde,chrome=1">
+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
+ <script src="/lottie.js" type="text/javascript" charset="utf-8"></script>
+ <style type="text/css" media="screen">
+ body,
+ main,
+ .anim {
+ margin: 0;
+ padding: 0;
+ }
+
+ main {
+ display: flex;
+ width: 1000px;
+ height: 1000px;
+ flex-flow: row wrap;
+ }
+ </style>
+</head>
+<body>
+ <main>
+ <div class=anim></div>
+ </main>
+ <script type="text/javascript" charset="utf-8">
+ (function () {
+ const TILE_COUNT = 5; // Number of tiles in x or y direction.
+ const TARGET_SIZE = 1000; // Image size in pixels both x and y direction.
+ const PATH = '/lottie.json';
+
+ // This global is used by puppeteer to determine if all tiles have finished drawing.
+ window._tileCount = 0;
+
+ // First load the animation for just a single tile
+ // so we can read out some values and calculate what
+ // the filmstrip should look like.
+ let anim = lottie.loadAnimation({
+ container: document.querySelector('.anim'),
+ renderer: 'svg',
+ loop: false,
+ autoplay: true,
+ path: PATH,
+ rendererSettings: {
+ preserveAspectRatio:'xMidYMid meet'
+ },
+ });
+
+ anim.addEventListener('data_ready', e => {
+ // Once the first tile is loaded, calculate what
+ // the filmstrip should look like.
+ let width = anim.animationData.w;
+ let height = anim.animationData.h;
+ let scale = TARGET_SIZE / (TILE_COUNT * Math.max(width, height));
+ let tileWidth = Math.ceil(scale * width);
+ let tileHeight = Math.ceil(scale * height);
+
+ let inPoint = anim.animationData.ip || 0;
+ let outPoint = anim.animationData.op || anim.animationData.totalFrames - 1;
+ let frameStep = (outPoint - inPoint) / (TILE_COUNT * TILE_COUNT - 1);
+
+ let main = document.querySelector('main');
+
+ let renderer = 'svg';
+ let hash = window.location.hash;
+ if (hash) {
+ renderer = hash.slice(1);
+ }
+
+ // Clear out the first div now that our measurements are done.
+ main.firstElementChild.remove();
+
+ // Add in the 5x5 tiled divs.
+ for (let i = 0; i < (TILE_COUNT*TILE_COUNT); i++) {
+ let div = document.createElement('div');
+ div.classList.add('anim');
+ div.style.width = tileWidth + 'px';
+ div.style.height = tileHeight + 'px';
+ main.appendChild(div);
+
+ let frameStop = i * frameStep;
+
+ let anim = lottie.loadAnimation({
+ container: div,
+ renderer: renderer,
+ loop: false,
+ autoplay: true,
+ path: PATH,
+ rendererSettings: {
+ preserveAspectRatio:'xMidYMid meet'
+ },
+ });
+ anim.addEventListener('enterFrame', (e) => {
+ if (Math.round(anim.currentFrame) >= frameStop) {
+ anim.pause();
+ window._tileCount += 1;
+ }
+ });
+ }
+ });
+ })();
+ </script>
+</body>
+</html>