nodejs后台生成echarts图表文件
| OS | Command |
|---|---|
| OS X | brew install pkg-config cairo pango libpng jpeg giflib |
| Ubuntu | sudo apt-get install libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++ |
| Fedora | sudo yum install cairo cairo-devel cairomm-devel libjpeg-turbo-devel pango pango-devel pangomm pangomm-devel giflib-devel |
| Solaris | pkgin install cairo pango pkg-config xproto renderproto kbproto xextproto |
| Windows | Instructions on our wiki |
npm install node-echarts
var node_echarts = require('node-echarts');
node_echarts({
path: __dirname + '/pie.png', //生成文件路径
option: option， //option是echarts配置参数
width: 500, //图表生成宽度
height: 500 //图表生成高度
})
中文无法显示是因为node-canvas库缺乏相应的字体，node-canvas某一分支提供了加入字体的api,下面是解决办法:
1.git clone https://github.com/chearon/node-canvas.git ,然后进入到clone的项目目录，执行npm install
2.下载所需要的字体
3.具体代码如下：
var node_echarts = require('node-echarts');
var path = require('path');
var Canvas =require('./node-canvas'); //这里的路径是刚clone项目路径
Canvas.registerFont(path.join(__dirname, "华文仿宋.ttf"), { family: "华文仿宋"});
node_echarts({
canvas: Canvas,
font: '12px 华文仿宋',
path: __dirname + '/中文字体demo.png',
option: option,
width: 1000,
height: 500
})
可查看demo下中文字体demo.js