1 //2，生成图片数据
2 var option = {
3 tooltip: {
4 trigger: 'item',
5 formatter: "{a} <br/>{b} : {c} ({d}%)"
6 },
7
8 series: [{
9 name: '访问来源',
10 type: 'pie',
11 radius: '55%',
12 center: ['50%', '60%'],
13 data: [
14 { value: 335, name: '直接访问' },
15 { value: 310, name: '邮件营销' },
16 { value: 234, name: '联盟广告' },
17 { value: 135, name: '视频广告' },
18 { value: 1548, name: '搜索引擎' }
19 ],
20 itemStyle: {
21 emphasis: {
22 shadowBlur: 10,
23 shadowOffsetX: 0,
24 shadowColor: 'rgba(0, 0, 0, 0.5)'
25 }
26 }
27 }]
28 };
29 //模块引入
30 var node_echarts = require('node-echarts');
31 var path = require('path');
32
33 node_echarts({
34 width: 500, // Image width, type is number.
35 height: 500, // Image height, type is number.
36 option: option, // Echarts configuration, type is Object.
37 //If the path is not set, return the Buffer of image.
38 path: path.join(__dirname, '../data/image1.png'), // Path is filepath of the image which will be created.
39 enableAutoDispose: true //Enable auto-dispose echarts after the image is created.
40 })
