| |
| <!-- |
| 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> |
| </head> |
| <body> |
| <style> |
| html, body, #main { |
| width: 100%; |
| height: 100%; |
| margin: 0; |
| } |
| |
| #snapshot { |
| position: fixed; |
| right: 10; |
| bottom: 10; |
| width: 200; |
| height: 200; |
| background: #fff; |
| border: 5px solid rgba(0,0,0,0.5); |
| } |
| </style> |
| <div id="main"></div> |
| <img id="snapshot"/> |
| <textarea id="xx"></textarea> |
| |
| <script> |
| |
| var chunkMax = 4; |
| var chunkCount = 0; |
| |
| function genData1(len, offset) { |
| // console.profile('gen'); |
| var lngRange = [-10.781327, 131.48]; |
| var latRange = [18.252847, 52.33]; |
| |
| var arr = new Float32Array(len * 2); |
| var off = 0; |
| |
| // var data = []; |
| for (var i = 0; i < len; i++) { |
| var x = +Math.random() * 10; |
| var y = +Math.sin(x) - x * (len % 2 ? 0.1 : -0.1) * Math.random() + (offset || 0) / 10; |
| arr[off++] = x; |
| arr[off++] = y; |
| // data.push([ |
| // x, |
| // y |
| // ]); |
| } |
| // console.profileEnd('gen'); |
| return arr; |
| // return data; |
| } |
| |
| function genData2(count) { |
| var lngRange = [-10.781327, 31.48]; |
| var latRange = [-18.252847, 30.33]; |
| return genData(count, lngRange, latRange); |
| } |
| |
| function genData(count, lngRange, latRange) { |
| lngRange[1] += 5; |
| lngRange[0] -= 10; |
| latRange[1] += 4; |
| var lngExtent = lngRange[1] - lngRange[0]; |
| var latExtent = latRange[1] - latRange[0]; |
| var data = []; |
| for (var i = 0; i < count; i++) { |
| data.push([ |
| Math.random() * lngExtent + lngRange[0], |
| Math.random() * latExtent + latRange[0], |
| Math.random() * 1000 |
| ]); |
| } |
| return data; |
| } |
| |
| // var data = genData1(5e5); |
| // var t = document.getElementById('xx'); |
| // t.innerHTML = data; |
| |
| require([ |
| 'echarts', |
| 'map/js/china' |
| ], function (echarts) { |
| var chart = echarts.init(document.getElementById('main')); |
| |
| chart.setOption({ |
| tooltip: {}, |
| toolbox: { |
| left: 'center', |
| feature: { |
| dataZoom: {} |
| } |
| }, |
| legend: { |
| orient: 'vertical', |
| left: 'left', |
| data: ['pm2.5' /* ,'pm10' */] |
| }, |
| // ??? |
| // visualMap: { |
| // min: 0, |
| // max: 1500, |
| // left: 'left', |
| // top: 'bottom', |
| // text: ['High','Low'], |
| // seriesIndex: [1, 2, 3], |
| // inRange: { |
| // color: ['#006edd', '#e0ffff'] |
| // }, |
| // calculable : true |
| // }, |
| grid: { |
| right: '20%', |
| left: '20%' |
| }, |
| xAxis: [{ |
| }], |
| yAxis: [{ |
| max: 0, |
| min: -0.7 |
| }], |
| dataZoom: [{ |
| type: 'inside', |
| startValue: 5.214, |
| endValue: 6.13 |
| }, { |
| type: 'slider', |
| startValue: 5.214, |
| endValue: 6.13 |
| }], |
| animation: false, |
| series : [{ |
| name: 'pm2.5', |
| type: 'scatter', |
| data: genData1(1e5), |
| dimensions: ['x', 'y'], |
| // symbol: 'rect', |
| symbolSize: 3, |
| // symbol: 'rect', |
| itemStyle: { |
| color: '#128de3', |
| opacity: 0.4 |
| }, |
| large: true, |
| // large: { |
| // symbolSize: 2 |
| // }, |
| // large: function (params) { |
| // if (params.dataCount > 30000) { |
| // return {symbolSize: 1}; |
| // } |
| // else if (params.dataCount > 3000) { |
| // return {symbolSize: 5}; |
| // } |
| // }, |
| largeThreshold: 500, |
| progressive: 500 |
| // }, { |
| // name: 'pm10', |
| // type: 'scatter', |
| // data: genData2(2001), |
| // xAxisIndex: 0, |
| // yAxisIndex: 0, |
| // symbolSize: 2, |
| // // symbol: 'rect', |
| // itemStyle: { |
| // normal: { |
| // borderWidth: 0.5, |
| // borderColor: '#e01', |
| // color: '#128de3' |
| // } |
| // }, |
| // progressive: 3000 |
| }] |
| }); |
| |
| chart.on('click', function (param) { |
| alert('asdf'); |
| }); |
| |
| chart.on('finished', function () { |
| // console.log('Render finished'); |
| var url = chart.getDataURL(); |
| var snapshotEl = document.getElementById('snapshot'); |
| snapshotEl.src = url; |
| }); |
| |
| window.onresize = chart.resize; |
| |
| // next(); |
| |
| function next() { |
| if (chunkCount++ < chunkMax) { |
| var newData = genData1(100000, chunkCount); |
| chart.appendData({seriesIndex: 0, data: newData}); |
| // console.log('Data loaded'); |
| setTimeout(next, 3000); |
| } |
| } |
| |
| }); |
| |
| </script> |
| </body> |
| </html> |
