echarts-for-react

A very simple echarts(v3.0 & v4.0) wrapper for react.

1. install

1npm install --save echarts-for-react
2
3# `echarts` is the peerDependence of `echarts-for-react`, you can install echarts with your own version.
4npm install --save echarts

Then use it.

1import ReactEcharts from 'echarts-for-react';
2
3// render echarts option.
4<ReactEcharts option={this.getOption()} />

You can run demo by:

1git clone git@github.com:hustcc/echarts-for-react.git
2
3npm install
4
5npm start

then open http://127.0.0.1:8080/ in your browser. or see http://git.hust.cc/echarts-for-react/

2. usage

Code of a simple demo code showed below. For more example can see: http://git.hust.cc/echarts-for-react/

javascript

1import React from 'react';
2import ReactEcharts from 'echarts-for-react';  // or var ReactEcharts = require('echarts-for-react');
3
4<ReactEcharts
5  option={this.getOption()}
6  notMerge={true}
7  lazyUpdate={true}
8  theme={"theme_name"}
9  onChartReady={this.onChartReadyCallback}
10  onEvents={EventsDict}
11  opts={} />

typescript

1import * as React from "react";
2import ReactEcharts from "echarts-for-react";
3
4<ReactEcharts
5  option={this.getOption()}
6  notMerge={true}
7  lazyUpdate={true}
8  theme={"theme_name"}
9  onChartReady={this.onChartReadyCallback}
10  onEvents={EventsDict}
11  opts={} />

Import ECharts.js modules manually to reduce bundle size

1import React from 'react';
2// import the core library.
3import ReactEchartsCore from 'echarts-for-react/lib/core';
4
5// then import echarts modules those you have used manually.
6import echarts from 'echarts/lib/echarts';
7// import 'echarts/lib/chart/line';
8import 'echarts/lib/chart/bar';
9// import 'echarts/lib/chart/pie';
10// import 'echarts/lib/chart/scatter';
11// import 'echarts/lib/chart/radar';
12
13// import 'echarts/lib/chart/map';
14// import 'echarts/lib/chart/treemap';
15// import 'echarts/lib/chart/graph';
16// import 'echarts/lib/chart/gauge';
17// import 'echarts/lib/chart/funnel';
18// import 'echarts/lib/chart/parallel';
19// import 'echarts/lib/chart/sankey';
20// import 'echarts/lib/chart/boxplot';
21// import 'echarts/lib/chart/candlestick';
22// import 'echarts/lib/chart/effectScatter';
23// import 'echarts/lib/chart/lines';
24// import 'echarts/lib/chart/heatmap';
25
26// import 'echarts/lib/component/graphic';
27// import 'echarts/lib/component/grid';
28// import 'echarts/lib/component/legend';
29import 'echarts/lib/component/tooltip';
30// import 'echarts/lib/component/polar';
31// import 'echarts/lib/component/geo';
32// import 'echarts/lib/component/parallel';
33// import 'echarts/lib/component/singleAxis';
34// import 'echarts/lib/component/brush';
35
36import 'echarts/lib/component/title';
37
38// import 'echarts/lib/component/dataZoom';
39// import 'echarts/lib/component/visualMap';
40
41// import 'echarts/lib/component/markPoint';
42// import 'echarts/lib/component/markLine';
43// import 'echarts/lib/component/markArea';
44
45// import 'echarts/lib/component/timeline';
46// import 'echarts/lib/component/toolbox';
47
48// import 'zrender/lib/vml/vml';
49
50// The usage of ReactEchartsCore are same with above.
51<ReactEchartsCore
52  echarts={echarts}
53  option={this.getOption()}
54  notMerge={true}
55  lazyUpdate={true}
56  theme={"theme_name"}
57  onChartReady={this.onChartReadyCallback}
58  onEvents={EventsDict}
59  opts={} />

3. component props

• option (required, object)

the echarts option config, can see http://echarts.baidu.com/option.html#title.

• notMerge (optional, object)

when setOption, not merge the data, default is false. See http://echarts.baidu.com/api.html#echartsInstance.setOption.

• lazyUpdate (optional, object)

when setOption, lazy update the data, default is false. See http://echarts.baidu.com/api.html#echartsInstance.setOption.

• style (optional, object)

the style of echarts div. object, default is {height: '300px'}.

• className (optional, string)

the class of echarts div. you can setting the css style of charts by class name.

• theme (optional, string)

the theme of echarts. string, should registerTheme before use it (theme object format: https://github.com/ecomfe/echarts/blob/master/theme/dark.js). e.g.

1// import echarts
2import echarts from 'echarts';
3...
4// register theme object
5echarts.registerTheme('my_theme', {
6  backgroundColor: '#f4cccc'
7});
8...
9// render the echarts use option `theme`
10<ReactEcharts
11  option={this.getOption()}
12  style={{height: '300px', width: '100%'}}
13  className='echarts-for-echarts'
14  theme='my_theme' />

• onChartReady (optional, function)

when the chart is ready, will callback the function with the echarts object as it's paramter.

• loadingOption (optional, object)

the echarts loading option config, can see http://echarts.baidu.com/api.html#echartsInstance.showLoading.

• showLoading (optional, bool, default: false)

bool, when the chart is rendering, show the loading mask.

• onEvents (optional, array(string=>function) )

binding the echarts event, will callback with the echarts event object, and the echart object as it's paramters. e.g:

1let onEvents = {
2  'click': this.onChartClick,
3  'legendselectchanged': this.onChartLegendselectchanged
4}
5...
6<ReactEcharts
7  option={this.getOption()}
8  style={{height: '300px', width: '100%'}}
9  onEvents={onEvents} />

for more event key name, see: http://echarts.baidu.com/api.html#events

• opts (optional, object)

the opts of echarts. object, will be used when initial echarts instance by echarts.init. Document here.

1<ReactEcharts
2  option={this.getOption()}
3  style={{height: '300px'}}
4  opts={{renderer: 'svg'}} // use svg to render the chart.
5/>

4. Component API & Echarts API

the Component only has one API named getEchartsInstance.

• getEchartsInstance() : get the echarts instance object, then you can use any API of echarts.

for example:

1// render the echarts component below with rel
2<ReactEcharts ref={(e) => { this.echarts_react = e; }}
3  option={this.getOption()} />
4
5// then get the `ReactEcharts` use this.echarts_react
6
7let echarts_instance = this.echarts_react.getEchartsInstance();
8// then you can use any API of echarts.
9let base64 = echarts_instance.getDataURL();

About API of echarts, can see http://echarts.baidu.com/api.html#echartsInstance.

You can use the API to do:

1. binding / unbinding event.
2. dynamic charts with dynamic data.
3. get the echarts dom / dataURL / base64, save the chart to png.
4. release the charts.

5. Q & A

• How to render the chart with svg when using echarts 4.x

Use the props opts of component with renderer = 'svg'. For example:

1<ReactEcharts
2  option={this.getOption()}
3  style={{height: '300px'}}
4  opts={{renderer: 'svg'}} // use svg to render the chart.
5/>

6. LICENSE

MIT@hustcc.