G2-for-Vue

G2 Charts for Vue.js.

Built upon G2 v3.2.7+ and depends on Vue.js v2.5.17+.

Install

Manual

download lib/G2VChart.js and include it in your HTML file

<script src="path/to/g2-for-vue/lib/index.js"></script>

The component is exposed as window.G2VChart.

// register component to use
Vue.component('g2-vchart', G2VChart)

Use npm（Recommended)

npm install g2-for-vue

Register Component

import Vue from 'vue'
import G2VChart from 'g2-for-vue/components/G2VChart'
 
// register component to use
Vue.component('g2-vchart', G2VChart)

Using the Component

<template>
  <div class='bar-chart'>
    <G2VChart
      ref="bar"
      :height="chartHeight"
      :plotCfg="barPlotCfg"
      :chartData="barData"
      :createChart="createBarChart"
      :addGuide="addBarGuide"
    />
    <div class='btn' @click="refresh">refresh</div>
  </div>
</template>
<script>
import G2VChart from 'g2-for-vue'
// or import G2VChart from 'g2-for-vue/components/G2VChart'
 
export default {
  components: {
    G2VChart
  },
  data () {
    return {
      chartHeight: 220,
      selectedMonth: '9月',
      barData: [
        {month: '4月', value: 10},
        {month: '5月', value: 310},
        {month: '6月', value: 450},
        {month: '7月', value: 60},
        {month: '8月', value: 110},
        {month: '9月', value: 100}
      ],
      barPlotCfg: {},
      typeMap: {
        OUT: '支出',
        IN: '收入'
      }
    }
  },
  methods: {
   createBarChart(chart) {
    const self = this;
    chart.interval().position('month*value').size(20).color('month', month => {
      if (month === self.selectedMonth) {
        return '#108ee9';
      }
      return '#108ee969';
    });
    chart.legend(false);
    chart.tooltip(false);
    return chart;
  },
 
  addBarGuide(chart, barData) {
    if (!chart || !barData) { return; }
    // 辅助文本
    let diffVal = 0;
    barData.map(item => {
      chart.guide().text({
        position: item,
        content: item.value,
        offsetX: -9,
        offsetY: -8
      });
    });
  },
    refresh () {
      this.barData = [
        {month: '4月', value: Math.floor(Math.random() * 100) + 30},
        {month: '5月', value: Math.floor(Math.random() * 100) + 110},
        {month: '6月', value: Math.floor(Math.random() * 100) + 450},
        {month: '7月', value: Math.floor(Math.random() * 100) + 340},
        {month: '8月', value: Math.floor(Math.random() * 100) + 210},
        {month: '9月', value: Math.floor(Math.random() * 100) + 680}
      ]
    }
  }
}
</script>
<style>
.bar-chart {
  width: 100%;
  height: 100%;
  min-width: 200px;
}
</style>

See more examples here

Props

• autoResize (default: false)

  This prop indicates G2 Chart instance should be resized automatically whenever its root is resized

• plotCfg

• chartData

• createChart

• addGuide

Computed

• width [readonly]

  Used to retrieve the current width of the G2Chart instance.

• height [readonly]

  Used to retrieve the current height of the G2Chart instance.

Usages

<g2-vchart
  ref="g2-vchart"
  autoResize
  @resize="onResize"
/>

onResize() {
  const g2VChart = this.$refs['g2-vchart'];
  const width = g2VChart.width;
  const height = g2VChart.height;
  console.log('onResize:width:%d, height:%d',  width, height)
}

Methods

• downloadImage (name: string)

  图表导出功能，通过传入 name 来指定下载图片的文件名。

• getDataURL

• changeVisible

• resize

• clear

• repaint

• destroy

• dispatchAction (name: string, ...args: any[]) To see more actions support: G2.Chart Methods

  example

  this.vchart.dispatchAction('getXScale')

Events

G2VChart support the following events:

basic canvas events

• mousedown
• mousemove
• mouseleave
• mouseup
• click
• dblclick
• touchstart
• touchmove
• touchend

basic plot events

• plotenter
• plotmove
• plotleave
• plotclick
• plotdblclick

resize event

• resize

tooltip events

• tooltip:show
• tooltip:hide
• tooltip:change

Usages:

<g2-vchart
  ref="g2-vchart"
  @click="onClick"
  @tooltip:change="onTooltipChange"
/>

onTooltipChange(evt) {
  // handle evt
}

For more details, see G2's API - Events

• any other events,like shape*basic, components*basic will be added soon~

Local development

npm i
npm run demo

浏览器打开http://localhost:8080/demo.html

Plan

• 分包引入G2,目前会将整个G2引入,打包后的common.js大小为1542.79 kb,压缩后的大小为327.42 kb
  • use G2 as exterval！

import G2 from '@antv/g2/src/core.js'
 
// import G2 modules manually to reduce bundle size,such as Geoms,Facets, Interaction
// geoms
require('./geom/area');
require('./geom/edge');
require('./geom/heatmap');
require('./geom/interval');
require('./geom/line');
require('./geom/path');
require('./geom/point');
require('./geom/polygon');
require('./geom/schema');
require('./geom/venn');
 
// facets
require('./facet/index');
 
// interaction
require('./interaction/index');

• use resize-detector
• add more examples
• run lint before git push