Boxplot Chart

Installation

Examples

Props

Schema

Type aliases from this item's source — use them to shape the data you pass in.

interface BoxRow {
  category: string
  /** [min, Q1, median, Q3, max] */
  values: [number, number, number, number, number]
}

Used by

Files installed (3)

• src/app/components/ui/charts/boxplot-chart/boxplot-chart.component.ts5.4 kB

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  import {
    AfterViewInit,
    Component,
    ElementRef,
    Input,
    OnChanges,
    OnDestroy,
    SimpleChanges,
    ViewChild,
    ChangeDetectionStrategy,
  } from '@angular/core'
  import type * as echarts from 'echarts/core'
  import { cn } from '@/lib/utils'
  import {
    getChartColors,
    getChartTextColor,
    getChartAxisColor,
    getChartSplitLineColor,
    getChartTooltipBg,
    getChartTooltipBorder,
    getChartTooltipText,
    mergeOptionBlock,
  } from '../use-chart-theme'
  
  export interface BoxRow {
    category: string
    /** [min, Q1, median, Q3, max] */
    values: [number, number, number, number, number]
  }
  
  /**
   * Angular port of the UIPKGE BoxplotChart — precomputed five-number tuples rendered per
   * category. Standalone, theme-aware. Same inputs as the React/Vue `BoxplotChart` (`data`,
   * `horizontal`, `height`, `option`). Bare `w-full` frame (no tabindex/focus ring), like Vue.
   */
  @Component({
    changeDetection: ChangeDetectionStrategy.Eager,
    selector: 'ui-boxplot-chart, [ui-boxplot-chart]',
    standalone: true,
    host: {
      '[attr.data-slot]': '"boxplot-chart"',
      '[attr.data-uipkge]': '""',
      '[class]': 'hostClass',
      '[attr.role]': '"img"',
      '[attr.aria-label]': 'ariaLabel || "Chart"',
      '[style.height]': 'heightStyle',
    },
    template: `<div #chartEl class="size-full"></div>`,
  })
  export class UiBoxplotChartComponent implements AfterViewInit, OnChanges, OnDestroy {
    /** `{ category, values: [min, Q1, median, Q3, max] }` per group. Passed straight to ECharts. */
    @Input() data: BoxRow[] = []
    /** Flip to horizontal boxes. Default false. */
    @Input() horizontal = false
    @Input() height: number | string = 320
    @Input() option?: Record<string, unknown>
    /** Accessible name announced for the chart image. Defaults to "Chart". */
    @Input() ariaLabel?: string
    @Input('class') className?: string
  
    @ViewChild('chartEl', { static: false }) chartEl?: ElementRef<HTMLDivElement>
  
    private chart: echarts.ECharts | null = null
    private unsubscribeTheme: (() => void) | null = null
  
    get hostClass(): string {
      return cn('block w-full', this.className)
    }
  
    get heightStyle(): string {
      return /^\d+$/.test(String(this.height)) ? `${this.height}px` : String(this.height)
    }
  
    /** Build the merged ECharts option (pure — no DOM needed, unit-testable). */
    getOption(): Record<string, unknown> {
      const colors = getChartColors()
      const cats = this.data.map((d) => d.category)
      const values = this.data.map((d) => d.values)
      const series = [
        {
          type: 'boxplot',
          data: values,
          itemStyle: { color: colors[0], borderColor: colors[1] },
        },
      ]
      const valueAxis = {
        type: 'value',
        scale: true,
        splitLine: { lineStyle: { color: getChartSplitLineColor() } },
        axisLabel: { color: getChartTextColor(), fontSize: 11 },
        axisLine: { lineStyle: { color: getChartAxisColor() } },
        axisTick: { show: false },
      }
      const catAxis = {
        type: 'category',
        data: cats,
        axisLine: { lineStyle: { color: getChartAxisColor() } },
        axisLabel: { color: getChartTextColor(), fontSize: 11 },
        axisTick: { show: false },
      }
      const userOption: Record<string, any> = this.option ?? {}
      const {
        series: userSeries,
        xAxis: userXAxis,
        yAxis: userYAxis,
        grid: userGrid,
        tooltip: userTooltip,
        ...userRest
      } = userOption
      const mergedSeries = Array.isArray(userSeries) ? series.map((s, i) => ({ ...s, ...(userSeries[i] ?? {}) })) : series
      return {
        color: colors,
        grid: mergeOptionBlock(
          { left: 16, right: 16, top: 24, bottom: 24, outerBoundsMode: 'same', outerBoundsContain: 'axisLabel' },
          userGrid,
        ),
        tooltip: mergeOptionBlock(
          {
            trigger: 'item',
            backgroundColor: getChartTooltipBg(),
            borderColor: getChartTooltipBorder(),
            textStyle: { color: getChartTooltipText(), fontSize: 12 },
          },
          userTooltip,
        ),
        xAxis: mergeOptionBlock(this.horizontal ? valueAxis : catAxis, userXAxis),
        yAxis: mergeOptionBlock(this.horizontal ? catAxis : valueAxis, userYAxis),
        series: mergedSeries,
        ...userRest,
      }
    }
  
    async ngAfterViewInit(): Promise<void> {
      if (typeof window === 'undefined' || !this.chartEl?.nativeElement) return
      const [{ use }, { CanvasRenderer }, { BoxplotChart: EChartsBoxplotChart }, comps] = await Promise.all([
        import('echarts/core'),
        import('echarts/renderers'),
        import('echarts/charts'),
        import('echarts/components'),
      ])
      use([CanvasRenderer, EChartsBoxplotChart, comps.GridComponent, comps.TooltipComponent])
      const { init } = await import('echarts/core')
      this.chart = init(this.chartEl.nativeElement)
      this.chart.setOption(this.getOption())
      const { onChartThemeChange } = await import('../use-chart-theme')
      this.unsubscribeTheme = onChartThemeChange(() => this.chart?.setOption(this.getOption()))
      if (typeof ResizeObserver !== 'undefined') {
        new ResizeObserver(() => this.chart?.resize()).observe(this.chartEl.nativeElement)
      }
    }
  
    ngOnChanges(changes: SimpleChanges): void {
      if (this.chart && (changes['data'] || changes['option'] || changes['horizontal'])) {
        this.chart.setOption(this.getOption())
      }
    }
  
    ngOnDestroy(): void {
      this.unsubscribeTheme?.()
      this.unsubscribeTheme = null
      try {
        this.chart?.dispose()
      } catch {
        /* already disposed */
      }
      this.chart = null
    }
  }
  

• src/app/components/ui/charts/boxplot-chart/index.ts0.1 kB

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• src/app/components/ui/charts/use-chart-theme.ts7.4 kB

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Raw manifest:https://uipkge.dev/r/angular/boxplot-chart.json

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