FishNodeEcharts

Create echarts on server side by node

How to instal

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 fish-node-echarts

ENV

node

version > 8.x

How to use

@param config = {
    width: 500 // image width, it is not required, the default will be 500 
    height: 500 // image height,it is not required, default will be 500 
    option: {}, //it is required, echarts configuration
    pathname:'', // the filepath where the image which will be created. it is not required, default './',
    filename:'test.jpg', //the filename, it is not provide, it will not create the image but reture a file stream,
    type:'png' //the image type, support 'png' or 'jgp',default 'png'
}

1. require the module

const genEchart = require('fish-node-echarts');

2. define an echart option(you can check the echarts ducument):

const option = {
    backgroundColor:'#fff',
    xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    },
    yAxis: {
        type: 'value'
    },
    series: [{
        data: [820, 932, 901, 934, 1290, 1330, 1320],
        type: 'line'
    }]
};

3. Generate the echart image file or buffer:

(1) generate the image buffer:

promise

genEchart({
    width:500,
    height:500,
    option,
    pathname:'./Test',
    filename:'test.jpg',
    type:'jpg'
}).then(filename =>{
    //get the echart image filename
});

async

let filename = await genEchart({
    width:500,
    height:500,
    option,
    pathname:'./Test',
    filename:'test.jpg',
    type:'jpg'
});

(2) generate the image buffer:

promise

genEchart({
    width:500,
    height:500,
    option,
    pathname:'./Test',
    filename:'test.jpg',
    type:'jpg'
}).then(buffer=>{
    //get the echart image buffer
});

async

let buffer = await genEchart({
    width:500,
    height:500,
    option,
    pathname:'./Test',
    filename:'test.jpg',
    type:'jpg'
});