Introduction to CKB

2 min read

Chart Knowledge Base (CKB) is a library offers knowledge base for chart wikis in a JSON format.

The JSON is like this:

{
  line_chart: {
    id: 'line_chart',
    name: 'Line Chart',
    alias: ['Lines'],
    family: ['LineCharts'],
    def: 'A line chart uses lines with segments to show changes in data in a ordinal dimension.',
    purpose: ['Comparison', 'Trend', 'Anomaly'],
    coord: ['Cartesian2D'],
    category: ['Statistic'],
    shape: ['Lines'],
    dataPres: [
      { minQty: 1, maxQty: 1, fieldConditions: ['Time', 'Ordinal'] },
      { minQty: 0, maxQty: 1, fieldConditions: ['Nominal'] },
      { minQty: 1, maxQty: 1, fieldConditions: ['Interval'] },
    ],
    channel: ['Position', 'Direction'],
    recRate: 'Recommended',
  },

  ...
}

✨ Features

Consistency for Chart Taxonomy

The contribution of the whole data visualization community makes this library a standard. You don't have to struggle with different names or alias or definition of a same chart type.

To Build Chart Dictionaries in Seconds

With AVA/CKB, you can quickly build your chart dictionary product like this: ChartCube

The Base for Automatic Chart Recommendation

You can easily build a chart type recommendation system with this knowledge base and your customized rules.

📦 Installation

$ npm install @antv/ckb

🔨 Usage

import { CKBJson } from '@antv/ckb';


// Knowledage base for all charts in English.
const knowledgeBase = CKBJson();

// Knowledage base for completed charts in Chinese.
const zhCompletedKB = CKBJson('zh-CN', true);

Demo

📖 Documentation

For more usages, please check the API Reference