G2

Overview

Uses a set of y values (y1, y2) to position a rectangular area drawn on the y-axis, commonly used for highlighting specific areas.

import { Chart } from '@antv/g2';

const chart = new Chart({
  container: 'container',
});

chart.options({
  width: 600,
  height: 470,
  type: 'view',
  children: [
    {
      type: 'point',
      data: {
        type: 'fetch',
        value:
          'https://gw.alipayobjects.com/os/basement_prod/6b4aa721-b039-49b9-99d8-540b3f87d339.json',
      },
      encode: { x: 'height', y: 'weight', color: 'gender' },
    },
    { type: 'rangeY', data: [{ y: [54, 72] }], encode: { y: 'y' } },
  ],
});

chart.render();

Additionally, rangeY provides a simplified syntax:

chart
  .rangeY()
  .data([
    [54, 60],
    [65, 72],
  ])
  .encode('y', (d) => d);

// it can be simplified as follows:
chart.rangeY().data([
  [54, 60],
  [65, 72],
]);

Configuration

Property	Description	Type	Default	Required
encode	Configure the visual channels of the `rangeY` mark, including `x`, `y`, `color`, `shape`, etc., to specify the relationship between visual element properties and data	encode	-	✓
style	Configure the graphic style of the `rangeY` mark	style	-

encode

Configure the visual channels of the rangeY mark.

Property	Description	Type	Default	Required
y	Bind the `y` property channel of the `rangeY` mark, usually a time or ordinal field from `data`	`string`	-	✓

For more encode configurations, you can check the Encode introduction page.

style

Property	Description	Type	Default
fill	Fill color of the graphic	`string` \| `Function<string>`	-
fillOpacity	Fill opacity of the graphic	`number` \| `Function<number>`	-
stroke	Stroke of the graphic	`string` \| `Function<string>`	-
strokeOpacity	Stroke opacity	`number` \| `Function<number>`	-
lineWidth	Width of the graphic stroke	`number` \| `Function<number>`	-
lineDash	Dashed stroke configuration. The first value is the length of each dash segment, the second value is the distance between segments. Setting lineDash to [0, 0] results in no stroke	`[number,number]` \| `Function<[number, number]>`	-
opacity	Overall opacity of the graphic	`number` \| `Function<number>`	-
shadowColor	Shadow color of the graphic	`string` \| `Function<string>`	-
shadowBlur	Gaussian blur coefficient of the graphic shadow	`number` \| `Function<number>`	-
shadowOffsetX	Horizontal distance of the shadow from the graphic	`number` \| `Function<number>`	-
shadowOffsetY	Vertical distance of the shadow from the graphic	`number` \| `Function<number>`	-
cursor	Mouse cursor style. Same as CSS cursor style, default 'default'	`string` \| `Function<string>`	'default'

For more style configurations, you can check the Style introduction page.

Examples

For more examples, you can visit the Chart Examples - Data Annotation page.