React Heat Map: A React Component for Creating Heat Maps

HeatMap

A lightweight calendar heatmap react component built on SVG, customizable version of GitHub's contribution graph. Try it out on website example.

Install

# Not dependent on uiw.
npm install @uiw/react-heat-map --save

Basic Usage

Basic usage example, Please pay warning to the time setting.

⚠️ Example: 2016-01-11 -> 2016/01/11, Support Safari

import React from 'react';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count: 2 },
  { date: '2016/01/12', count: 20 },
  { date: '2016/01/13', count: 10 },
  ...[...Array(17)].map((_, idx) => ({ date: `2016/02/${idx + 10}`, count: idx, content: '' })),
  { date: '2016/04/11', count: 2 },
  { date: '2016/05/01', count: 5 },
  { date: '2016/05/02', count: 5 },
  { date: '2016/05/04', count: 11 },
];

const Demo = () => {
  return (
    <div>
      <HeatMap
        value={value}
        weekLabels={['', 'Mon', '', 'Wed', '', 'Fri', '']}
        startDate={new Date('2016/01/01')}
      />
    </div>
  )
};

export default Demo

Set Color

Set the theme color style.

import React from 'react';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count:2 },
  { date: '2016/04/12', count:2 },
  { date: '2016/05/01', count:5 },
  { date: '2016/05/02', count:5 },
  { date: '2016/05/03', count:1 },
  { date: '2016/05/04', count:11 },
  { date: '2016/05/08', count:32 },
];

const Demo = () => {
  return (
    <HeatMap
      value={value}
      width={600}
      style={{ color: '#ad001d', '--rhm-rect-active': 'red' }}
      startDate={new Date('2016/01/01')}
      panelColors={{
        0: '#f4decd',
        2: '#e4b293',
        4: '#d48462',
        10: '#c2533a',
        20: '#ad001d',
        30: '#000',
      }}
    />
  )
};
export default Demo

Set Rect Style

Set the radius of the rect.

import React, { useState } from 'react';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count:2 },
  ...[...Array(17)].map((_, idx) => ({ date: `2016/01/${idx + 10}`, count: idx })),
  ...[...Array(17)].map((_, idx) => ({ date: `2016/02/${idx + 10}`, count: idx })),
  { date: '2016/04/12', count:2 },
  { date: '2016/05/01', count:5 },
  { date: '2016/05/02', count:5 },
  { date: '2016/05/03', count:1 },
  { date: '2016/05/04', count:11 },
  { date: '2016/05/08', count:32 },
];

const Demo = () => {
  const [range, setRange] = useState(5)
  return (
    <div>
      <input type="range" min="0" max="5" step="0.1" value={range} onChange={(e) => setRange(e.target.value)} /> {range}
      <HeatMap
        value={value}
        width={600}
        style={{ '--rhm-rect': '#b9b9b9' }}
        startDate={new Date('2016/01/01')}
        legendRender={(props) => <rect {...props} y={props.y + 10} rx={range} />}
        rectProps={{
          rx: range
        }}
      />
    </div>
  )
};
export default Demo

Tooltip

A simple text popup tip.

import React from 'react';
import Tooltip from '@uiw/react-tooltip';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count:2 },
  ...[...Array(17)].map((_, idx) => ({ date: `2016/01/${idx + 10}`, count: idx, })),
  ...[...Array(17)].map((_, idx) => ({ date: `2016/02/${idx + 10}`, count: idx, })),
  { date: '2016/04/12', count:2 },
  { date: '2016/05/01', count:5 },
  { date: '2016/05/02', count:5 },
  { date: '2016/05/03', count:1 },
  { date: '2016/05/04', count:11 },
  { date: '2016/05/08', count:32 },
];

const Demo = () => {
  return (
    <HeatMap
      value={value}
      width={600}
      startDate={new Date('2016/01/01')}
      rectRender={(props, data) => {
        // if (!data.count) return <rect {...props} />;
        return (
          <Tooltip placement="top" content={`count: ${data.count || 0}`}>
            <rect {...props} />
          </Tooltip>
        );
      }}
    />
  )
};
export default Demo

Show/Hide Legend

import React, { useState } from 'react';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count:2 },
  ...[...Array(17)].map((_, idx) => ({ date: `2016/01/${idx + 10}`, count: idx })),
  ...[...Array(17)].map((_, idx) => ({ date: `2016/02/${idx + 10}`, count: idx })),
  { date: '2016/04/12', count:2 },
  { date: '2016/05/01', count:5 },
  { date: '2016/05/02', count:5 },
  { date: '2016/05/03', count:1 },
  { date: '2016/05/04', count:11 },
  { date: '2016/05/08', count:32 },
];

const Demo = () => {
  const [size, setSize] = useState(0)
  return (
    <div>
      <label style={{ userSelect: 'none' }}>
        <input
          type="checkbox"
          checked={size === 0}
          onChange={(e) => setSize(e.target.checked ? 0 : 12)}
        />
        {size === 0 ? ' Hide' : ' Show'} Legend
      </label>
      <HeatMap
        width={600}
        value={value}
        legendCellSize={size}
        startDate={new Date('2016/01/01')}
      />
    </div>
  )
};
export default Demo

Selected Rect

import React, { useState } from 'react';
import HeatMap from '@uiw/react-heat-map';

const value = [
  { date: '2016/01/11', count:2 },
  ...[...Array(17)].map((_, idx) => ({ date: `2016/01/${idx + 10}`, count: idx })),
  ...[...Array(17)].map((_, idx) => ({ date: `2016/02/${idx + 10}`, count: idx })),
  { date: '2016/04/12', count:2 },
  { date: '2016/05/01', count:5 },
  { date: '2016/05/02', count:5 },
  { date: '2016/05/03', count:1 },
  { date: '2016/05/04', count:11 },
  { date: '2016/05/08', count:32 },
];

const Demo = () => {
  const [selected, setSelected] = useState('')
  return (
    <div>
      <HeatMap
        width={600}
        value={value}
        startDate={new Date('2016/01/01')}
        rectRender={(props, data) => {
          if (selected !== '') {
            props.opacity = data.date === selected ? 1 : 0.45
          }
          return (
            <rect {...props} onClick={() => {
              setSelected(data.date === selected ? '' : data.date);
            }} />
          );
        }}
      />
    </div>
  )
};
export default Demo

Props

Property	Description	Type	Default
value	Data to be displayed, required	Array	`[]`
rectSize	Grid size	number	`11`
legendCellSize	Size of the legend cells, in pixel. Value equal to `0` hide legend.	number	`11`
startDate	Start date	Date	`new Date()`
endDate	End date	Date	-
space	Interval between grid sizes	number	`2`
monthPlacement	position of month labels	`'top'	'bottom'`
rectProps	Grid node attribute settings	`React.SVGProps<SVGRectElement>`	`2`
weekLabels	Week display	string[]	`['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']`
monthLabels	Month display	string[]	`['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']`
panelColors	Backgroud color of active colors	`Record<number, string>`	`{ 0: '#EBEDF0', 8: '#7BC96F', 4: '#C6E48B', 12: '#239A3B', 32: '#196127' }`
rectRender	Single `day` block re-render	`<E = SVGRectElement>(data: E & { key: number }, valueItem: HeatMapValue & { date: string, column: number, row: number, index: number }) => React.ReactElement`	-
legendRender	Single `legend` block re-render	`(props: React.SVGProps<SVGRectElement>) => React.ReactNode`	-

Development

development

Runs the project in development mode.

npm install

# Step 1, run first, listen to the component compile and output the .js file
# listen for compilation output type .d.ts file
npm run watch
# Step 2, development mode, listen to compile preview website instance
npm run start

production

Builds the app for production to the build folder.

npm run build
npm run doc

The build is minified and the filenames include the hashes. Your app is ready to be deployed!

Contributors

As always, thanks to our amazing contributors!

Made with github-action-contributors.

Download details:

Author: uiwjs
Source: https://github.com/uiwjs/react-heat-map

License: MIT license

#typescript #javascript #react