Smooth Funnel

Installation

Examples

Props

Schema

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

interface FunnelStage {
  name: string
  value: number
  /** Optional override; defaults to chart-1..N from the registry palette. */
  color?: string
}

Used by

Files installed (2)

• app/components/ui/charts/smooth-funnel/SmoothFunnel.vue4 kB

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  <script setup lang="ts">
  import { computed } from 'vue'
  import type { HTMLAttributes } from 'vue'
  import { cn } from '@/lib/utils'
  
  interface FunnelStage {
    name: string
    value: number
    /** Optional override; defaults to chart-1..N from the registry palette. */
    color?: string
  }
  
  interface Props {
    data: FunnelStage[]
    /** Container height (px when numeric, raw CSS when string). Defaults to 240. */
    height?: number | string
    /** Show the percent pill on each stage. Defaults to true. */
    showLabels?: boolean
    /** Minimum segment height in px so tail stages stay visible at tiny percents. Default 18. */
    minHeight?: number
    /** Optional fallback palette when `color` is omitted on a stage. */
    colors?: string[]
    class?: HTMLAttributes['class']
    /** Accessible name announced for the chart image. Defaults to "Chart". */
    ariaLabel?: string
  }
  
  const props = withDefaults(defineProps<Props>(), {
    height: 240,
    showLabels: true,
    minHeight: 18,
    colors: () => ['var(--chart-1)', 'var(--chart-2)', 'var(--chart-3)', 'var(--chart-4)', 'var(--chart-5)'],
  })
  
  // SVG geometry. Width/height are virtual (the SVG fits to container
  // via viewBox). The aspect ratio (W:H ≈ 4:1) matches the horizontal
  // "flow" layout consumers typically want for a 4-6 stage funnel; if
  // you need taller bands, override `height` and the curves stretch
  // vertically without distorting horizontally.
  const W = 720
  const H = 180
  const cy = H / 2
  
  const segments = computed(() => {
    const stages = props.data
    const n = stages.length
    if (n === 0) return []
    const segW = W / n
    const max = Math.max(...stages.map((s) => s.value))
    const pctOf = (v: number) => (max > 0 ? (v / max) * 100 : 0)
    const heightFor = (pct: number) => Math.max((pct / 100) * H, props.minHeight)
  
    return stages.map((s, i) => {
      const next = stages[i + 1] ?? s
      const startPct = pctOf(s.value)
      const endPct = pctOf(next.value)
      const h0 = heightFor(startPct)
      const h1 = heightFor(endPct)
      const x0 = i * segW
      const x1 = x0 + segW
      const yTop0 = cy - h0 / 2
      const yTop1 = cy - h1 / 2
      const yBot0 = cy + h0 / 2
      const yBot1 = cy + h1 / 2
  
      // Cubic bezier control points at 38% / 62% of segment width produce
      // a soft S-curve transition between stages rather than the
      // trapezoidal default of an ECharts funnel.
      const cx1 = x0 + segW * 0.38
      const cx2 = x0 + segW * 0.62
  
      const d = [
        `M ${x0.toFixed(1)} ${yTop0.toFixed(1)}`,
        `C ${cx1.toFixed(1)} ${yTop0.toFixed(1)}, ${cx2.toFixed(1)} ${yTop1.toFixed(1)}, ${x1.toFixed(1)} ${yTop1.toFixed(1)}`,
        `L ${x1.toFixed(1)} ${yBot1.toFixed(1)}`,
        `C ${cx2.toFixed(1)} ${yBot1.toFixed(1)}, ${cx1.toFixed(1)} ${yBot0.toFixed(1)}, ${x0.toFixed(1)} ${yBot0.toFixed(1)}`,
        'Z',
      ].join(' ')
  
      return {
        d,
        color: s.color ?? props.colors[i % props.colors.length],
        percent: startPct,
        name: s.name,
        value: s.value,
        labelX: x0 + segW * 0.42,
        labelY: cy,
      }
    })
  })
  
  const heightStyle = computed(() => (/^\d+$/.test(String(props.height)) ? `${props.height}px` : String(props.height)))
  </script>
  
  <template>
    <div
      data-uipkge
      data-slot="smooth-funnel"
      tabindex="0"
      :style="{ height: heightStyle }"
      :class="cn('focus-visible:ring-ring w-full focus-visible:ring-2 focus-visible:outline-none', props.class)"
    >
      <svg
        :viewBox="`0 0 ${W} ${H}`"
        class="block h-full w-full"
        preserveAspectRatio="none"
        role="img"
        :aria-label="ariaLabel || 'Chart'"
      >
        <g v-for="(seg, i) in segments" :key="i">
          <path :d="seg.d" :fill="seg.color" />
          <foreignObject v-if="props.showLabels" :x="seg.labelX - 28" :y="seg.labelY - 12" width="56" height="24">
            <div
              class="bg-background text-foreground inline-flex h-6 items-center rounded-full border px-2 text-xs font-semibold shadow-sm"
            >
              {{ Math.round(seg.percent * 10) / 10 }}%
            </div>
          </foreignObject>
        </g>
      </svg>
    </div>
  </template>
  

• app/components/ui/charts/smooth-funnel/index.ts0.1 kB

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Raw manifest:https://uipkge.dev/r/vue/smooth-funnel.json

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