@antv/g2/src/interaction/brushXHighlight.ts

the Grammar of Graphics in Javascript

import { BrushHighlight } from './brushHighlight';

export function brushXRegion(x, y, x1, y1, extent) {
  const [, minY, , maxY] = extent;
  return [x, minY, x1, maxY];
}

export function BrushXHighlight(options) {
  return BrushHighlight({
    ...options,
    brushRegion: brushXRegion,
    selectedHandles: ['handle-e', 'handle-w'],
  });
}