|  | <!DOCTYPE html> | 
|  | <!-- | 
|  | Licensed to the Apache Software Foundation (ASF) under one | 
|  | or more contributor license agreements.  See the NOTICE file | 
|  | distributed with this work for additional information | 
|  | regarding copyright ownership.  The ASF licenses this file | 
|  | to you under the Apache License, Version 2.0 (the | 
|  | "License"); you may not use this file except in compliance | 
|  | with the License.  You may obtain a copy of the License at | 
|  |  | 
|  | http://www.apache.org/licenses/LICENSE-2.0 | 
|  |  | 
|  | Unless required by applicable law or agreed to in writing, | 
|  | software distributed under the License is distributed on an | 
|  | "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | 
|  | KIND, either express or implied.  See the License for the | 
|  | specific language governing permissions and limitations | 
|  | under the License. | 
|  | --> | 
|  |  | 
|  |  | 
|  | <html> | 
|  | <head> | 
|  | <meta charset="utf-8"> | 
|  | <meta name="viewport" content="width=device-width, initial-scale=1" /> | 
|  | <script src="lib/simpleRequire.js"></script> | 
|  | <script src="lib/config.js"></script> | 
|  | <script src="lib/jquery.min.js"></script> | 
|  | <script src="lib/facePrint.js"></script> | 
|  | <script src="lib/testHelper.js"></script> | 
|  | <script src="lib/perlin.js"></script> | 
|  | <script src="lib/dat.gui.min.js"></script> | 
|  | <!-- <script src="ut/lib/canteen.js"></script> --> | 
|  | <link rel="stylesheet" href="lib/reset.css" /> | 
|  | </head> | 
|  | <body> | 
|  | <style> | 
|  | body, #main, svg { | 
|  | margin: 0; | 
|  | width: 100%; | 
|  | height: 100%; | 
|  | } | 
|  | img { | 
|  | position: absolute; | 
|  | left: 0; | 
|  | top: 0; | 
|  | } | 
|  | </style> | 
|  |  | 
|  |  | 
|  | <div id="main"></div> | 
|  |  | 
|  | <script> | 
|  | require(['echarts'/*, 'map/js/china' */], function (echarts) { | 
|  | // During transition | 
|  | var chart = echarts.init(null, null, { | 
|  | width: 500, | 
|  | height: 500, | 
|  | renderer: 'svg', | 
|  | ssr: true | 
|  | }) | 
|  |  | 
|  | const width = chart.getWidth(); | 
|  | const height = chart.getHeight(); | 
|  |  | 
|  | const config = { | 
|  | minSize: 3, | 
|  | maxSize: 30, | 
|  |  | 
|  | color0: '#ffa500', | 
|  | color1: '#800080', | 
|  |  | 
|  | backgroundColor: '#8e2ed2', | 
|  |  | 
|  | duration: 4000, | 
|  |  | 
|  | frequency: 500, | 
|  | offsetX: 0, | 
|  | offsetY: 100 | 
|  | } | 
|  |  | 
|  | function createElements() { | 
|  | const elements = []; | 
|  | for (let x = 20; x < width; x += 40) { | 
|  | for (let y = 20; y < height; y += 40) { | 
|  | const rand = noise.perlin2( | 
|  | x / config.frequency + config.offsetX, | 
|  | y / config.frequency + config.offsetY | 
|  | ); | 
|  | elements.push({ | 
|  | type: 'circle', | 
|  | x, y, | 
|  | style: { | 
|  | fill: config.color1 | 
|  | }, | 
|  | shape: { | 
|  | r: config.maxSize | 
|  | }, | 
|  | keyframeAnimation: { | 
|  | duration: config.duration, | 
|  | loop: true, | 
|  | delay: (rand - 1) * 4000, | 
|  | keyframes: [{ | 
|  | percent: 0.5, | 
|  | easing: 'sinusoidalInOut', | 
|  | style: { | 
|  | fill: config.color0 | 
|  | }, | 
|  | scaleX: config.minSize / config.maxSize, | 
|  | scaleY: config.minSize / config.maxSize | 
|  | }, { | 
|  | percent: 1, | 
|  | easing: 'sinusoidalInOut', | 
|  | style: { | 
|  | fill: config.color1 | 
|  | }, | 
|  | scaleX: 1, | 
|  | scaleY: 1 | 
|  | }] | 
|  | } | 
|  | }); | 
|  | } | 
|  | } | 
|  | return elements; | 
|  | } | 
|  |  | 
|  | function update() { | 
|  | chart.setOption({ | 
|  | backgroundColor: config.backgroundColor, | 
|  | graphic: { | 
|  | elements: createElements() | 
|  | } | 
|  | }); | 
|  |  | 
|  | document.getElementById('main').innerHTML = chart.renderToSVGString(); | 
|  | } | 
|  |  | 
|  | update(); | 
|  |  | 
|  |  | 
|  | var gui = new dat.GUI(); | 
|  |  | 
|  | gui.add(config, 'frequency', 10, 1000).onChange(update); | 
|  | gui.add(config, 'offsetX', 0, 1000).onChange(update); | 
|  | gui.add(config, 'offsetY', 0, 1000).onChange(update); | 
|  |  | 
|  | gui.add(config, 'minSize', 0, 100).onChange(update); | 
|  | gui.add(config, 'maxSize', 0, 100).onChange(update); | 
|  | gui.add(config, 'duration', 100, 100000).onChange(update); | 
|  |  | 
|  | gui.addColor(config, 'backgroundColor').onChange(update); | 
|  | gui.addColor(config, 'color0').onChange(update); | 
|  | gui.addColor(config, 'color1').onChange(update); | 
|  | }); | 
|  | </script> | 
|  | </body> | 
|  | </html> | 
|  |  |