# Load range (Notchset): prompt.md (v2.0.0)

- id: `load-range` · version 2.0.0 · component · free
- category: Charts
- build: one set of files for every shadcn style
- install: `npx shadcn@latest add https://notchset.dev/r/load-range.json`
- npm dependencies: none
- registry dependencies: utils, https://notchset.dev/r/notchset-foundation.json, @notchset/status-pill
- docs: https://notchset.dev/components/load-range
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

The figure and its standing in words, one track from light to heavy with your usual as a soft band and the load as a glowing dot, and the figures it comes from (acute, chronic, ratio) as quiet rows..

## Build it
- Stack: React 18.3 or 19, TypeScript, Tailwind CSS v4 utility classes on the foundation's roles, a components.json (imports use its aliases).
- Packages: none beyond React.
- Files: `components/ui/notchset/load-range.tsx`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `notchset-foundation`, `status-pill`.
- Builds: one set of files, the same for every shadcn style.
- Exports to keep: `LoadRange`, and every exported type.
- CSS: the install adds the notchset foundation (its roles, keyframes and motion switch, reading your shadcn tokens for colour) to your global stylesheet once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Colours: every part reads the foundation's roles (`--ns-canvas`, `--ns-ink`, `--ns-line`, `--ns-signal` …), which read your shadcn tokens (`--background`, `--foreground`, `--border`, `--destructive` …), plus the optional `--success` and `--warning`. Retheme on `:root` or any container; never add Tailwind colour classes inside the component.
- This item reads `--ns-band-grade`, `--ns-canvas`, `--ns-font-mono`, `--ns-glow`, `--ns-ink-2`, `--ns-ink-3`, `--ns-line`, `--ns-series`, `--ns-text-figure`, `--ns-text-meta`, `--ns-weight-light`.
- Retune it (on any ancestor) with the foundation's roles and hooks: `--ns-bad`, `--ns-bad-ink`, `--ns-band`, `--ns-band-edge`, `--ns-band-grade`, `--ns-band-optimal`, `--ns-beat`, `--ns-bezel`, `--ns-canvas`, `--ns-cat-1`, `--ns-cat-2`, `--ns-cat-3`, `--ns-cat-4`, `--ns-cat-5`, `--ns-cat-6`, `--ns-check`, `--ns-chip`, `--ns-control`, `--ns-control-pad`, `--ns-control-sm`, `--ns-deep`, `--ns-deep-ink`, `--ns-deep-ink-2`, `--ns-deep-line`, `--ns-dialog`, `--ns-dialog-lg`, `--ns-dialog-sm`, `--ns-ease`, `--ns-ease-in`, `--ns-ease-panel`, `--ns-ease-pop`, `--ns-field`, `--ns-flood-arc`, `--ns-flood-aurora`, `--ns-flood-behind-1`, `--ns-flood-behind-2`, `--ns-flood-bloom`, `--ns-flood-deep`, `--ns-flood-dial-bloom`, `--ns-flood-glass`, `--ns-flood-grain`, `--ns-flood-image`, `--ns-flood-ink`, `--ns-flood-ink-low`, `--ns-flood-light`, `--ns-flood-mid`, `--ns-flood-pale`, `--ns-flood-pane`, `--ns-flood-pane-edge`, `--ns-flood-pill-ink`, `--ns-flood-ribbon`, `--ns-flood-ribbon-core`, `--ns-flood-shadow`, `--ns-flood-sheen`, `--ns-flood-wash`, `--ns-font-body`, `--ns-font-display`, `--ns-font-mono`, `--ns-font-script`, `--ns-glass`, `--ns-glass-blur`, `--ns-glass-shadow`, `--ns-glow`, `--ns-grain`, `--ns-gutter`, `--ns-header`, `--ns-heat`, `--ns-hover`, `--ns-ink`, `--ns-ink-2`, `--ns-ink-3`, `--ns-ink-4`, `--ns-leading`, `--ns-lift`, `--ns-light-1`, `--ns-light-2`, `--ns-light-3`, `--ns-light-spread`, `--ns-light-strength`, `--ns-line`, `--ns-line-soft`, `--ns-lit-edge`, `--ns-menu-dy`, `--ns-menu-row`, `--ns-mesh`, `--ns-mesh-frost`, `--ns-ok`, `--ns-ok-ink`, `--ns-orb-body`, `--ns-orb-cool`, `--ns-orb-core`, `--ns-orb-dawn`, `--ns-orb-deep`, `--ns-orb-edge`, `--ns-orb-grain`, `--ns-orb-ground`, `--ns-orb-halo`, `--ns-orb-inner`, `--ns-orb-key`, `--ns-orb-lift`, `--ns-orb-limb`, `--ns-orb-limb-from`, `--ns-orb-rim`, `--ns-orb-skin-hi`, `--ns-orb-skin-lo`, `--ns-orb-skin-mid`, `--ns-orb-warm`, `--ns-panel`, `--ns-panel-w`, `--ns-prism-edge`, `--ns-prism-glint`, `--ns-prism-sheen`, `--ns-prism-tint`, `--ns-pulse`, `--ns-radius`, `--ns-radius-card`, `--ns-radius-full`, `--ns-radius-lg`, `--ns-radius-sm`, `--ns-radius-xl`, `--ns-raised`, `--ns-range`, `--ns-row`, `--ns-row-compact`, `--ns-segment`, `--ns-selected`, `--ns-series`, `--ns-series-core`, `--ns-series-lilac`, `--ns-series-tint`, `--ns-shadow-dialog`, `--ns-shadow-float`, `--ns-shadow-panel`, `--ns-sheet`, `--ns-sheet-bottom`, `--ns-side`, `--ns-signal`, `--ns-sleep-awake`, `--ns-sleep-deep`, `--ns-sleep-light`, `--ns-sleep-rem`, `--ns-space-1`, `--ns-space-2`, `--ns-space-3`, `--ns-space-4`, `--ns-space-5`, `--ns-space-6`, `--ns-space-8`, `--ns-space-section`, `--ns-stack-on`, `--ns-standing-critical`, `--ns-standing-in`, `--ns-standing-out`, `--ns-state-doing`, `--ns-state-done`, `--ns-state-review`, `--ns-state-todo`, `--ns-switch-h`, `--ns-switch-w`, `--ns-text-body`, `--ns-text-control`, `--ns-text-display`, `--ns-text-figure`, `--ns-text-headline`, `--ns-text-hero`, `--ns-text-lede`, `--ns-text-meta`, `--ns-text-page`, `--ns-text-record`, `--ns-text-small`, `--ns-text-strong`, `--ns-text-sub`, `--ns-text-title`, `--ns-tile-shadow`, `--ns-time-born`, `--ns-time-color`, `--ns-time-dialog`, `--ns-time-menu`, `--ns-time-page`, `--ns-time-panel`, `--ns-time-toast`, `--ns-tint`, `--ns-tint-ink`, `--ns-toast-bottom`, `--ns-toast-left`, `--ns-touch`, `--ns-tracking-display`, `--ns-tracking-headline`, `--ns-warn`, `--ns-warn-ink`, `--ns-wash-clay`, `--ns-wash-dusk`, `--ns-wash-graphite`, `--ns-wash-ink`, `--ns-wash-sage`, `--ns-wash-sand`, `--ns-weight-light`, `--ns-weight-medium`, `--ns-weight-regular`, `--ns-weight-strong`, `--ns-well`.
- Never add Tailwind colour classes inside the component.

```tsx
import { LoadRange } from "@/components/ui/notchset/load-range";
```

## Parts
- A single export that takes props.

## Match the original
- Read `components/ui/notchset/load-range.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when

### Not when

## Built from
- status-pill (`status-pill`), installed with it: reuse it, don't rebuild it

## Mistakes
- Recreating the component instead of installing it

## Usage

```tsx
"use client";
import { LoadRange } from "@/components/ui/notchset/load-range";

export default function LoadRangeDemo() {
  return (
    <div className="w-full max-w-[560px]">
      <LoadRange value={64} low={55} high={72} domain={[30, 100]} rows={[{ label: "Acute, 7 days", value: "64" }, { label: "Chronic, 28 days", value: "61" }, { label: "Ratio", value: "1.05 · steady" }]} />
    </div>
  );
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `value` | `number` |  | Required. |
| `low` | `number` |  | your usual |
| `high` | `number` |  | Required. |
| `domain` | `[number, number]` |  | the track's ends; defaults to a little past the band and the value |
| `lowWord` | `string` | `"light"` |  |
| `highWord` | `string` | `"heavy"` |  |
| `rows` | `{ label: string; value: string }[]` |  |  |

Full docs: https://notchset.dev/components/load-range

## Customising
- Colours: every part reads the foundation's roles (`--ns-canvas`, `--ns-ink`, `--ns-line`, `--ns-signal` …), which read your shadcn tokens (`--background`, `--foreground`, `--border`, `--destructive` …), plus the optional `--success` and `--warning`. Retheme on `:root` or any container; never add Tailwind colour classes inside the component.
- Dark mode follows the `.dark` class or `data-theme="dark"` on an ancestor (the shadcn and next-themes conventions).
- Update later: Commit or stash local changes first (or copy the files), so the update can be undone. Read https://notchset.dev/r/changelog.json for the new versions: a major version, an entry marked breaking or a merge says what to change. Then re-run the install with `--overwrite`, on a branch. It replaces the component's files, the shared helper files they import, and the item's CSS rules in the global stylesheet, so review the whole diff (components, shared files, CSS), re-apply your own edits, and run the app's typecheck, tests and build.

## Accessibility contract (preserve when editing)

## Install

```bash
npx shadcn@latest add https://notchset.dev/r/load-range.json
```

Or add the `@notchset` registry to components.json and run `npx shadcn@latest add @notchset/load-range`. Every components.json style gets the same files.

## Continue the workflow

- [Baseline meter](https://notchset.dev/components/baseline-meter)
- [Draw history](https://notchset.dev/components/draw-history)
- [Glance tile](https://notchset.dev/components/glance-tile)

## Source

### components/ui/notchset/load-range.tsx

```tsx
// Notchset load-range 2.0.0 · https://notchset.dev/changelog
"use client";
import { cn } from "@/lib/utils";
import { StatusPill } from "@/components/ui/notchset/status-pill";

/*
 * Load range: a week's training load against your own usual. The figure and its standing in words, then one track
 * from light to heavy with your usual as a soft band and today's load as a dot on it, then the few figures it comes
 * from as quiet rows (acute, chronic, their ratio). Your usual is yours, so the band moves with you.
 *
 *   <LoadRange value={64} low={55} high={72} domain={[30, 100]}
 *     rows={[{ label: "Acute, 7 days", value: "64" }, { label: "Chronic, 28 days", value: "61" }]} />
 */
type LoadRangeProps = {
  value: number;
  /** your usual */
  low: number;
  high: number;
  /** the track's ends; defaults to a little past the band and the value */
  domain?: [number, number] | undefined;
  lowWord?: string | undefined;
  highWord?: string | undefined;
  rows?: { label: string; value: string }[] | undefined;
  className?: string | undefined;
};

function LoadRange({ value, low, high, domain, lowWord = "light", highWord = "heavy", rows, className }: LoadRangeProps) {
  const lo = domain?.[0] ?? Math.floor(Math.min(low, value) * 0.6);
  const hi = domain?.[1] ?? Math.ceil(Math.max(high, value) * 1.35);
  const at = (v: number) => `${((Math.min(hi, Math.max(lo, v)) - lo) / (hi - lo)) * 100}%`;
  const standing = value < low ? "Below your usual" : value > high ? "Above your usual" : "Inside your usual";
  return (
    <div data-slot="load-range" className={cn("flex min-w-0 flex-col gap-3", className)}>
      <div className="flex flex-wrap items-baseline gap-3">
        <span className="text-[length:var(--ns-text-figure)] leading-none font-[number:var(--ns-weight-light)] tracking-[-0.02em] tabular-nums">{value}</span>
        <StatusPill tone={value > high ? "warn" : value < low ? "neutral" : "ok"}>{standing}</StatusPill>
        <span className="font-[family-name:var(--ns-font-mono)] text-[length:var(--ns-text-meta)] text-[var(--ns-ink-3)]">{`usual ${low}–${high}`}</span>
      </div>
      <div role="img" aria-label={`Load ${value}, ${standing.toLowerCase()} of ${low} to ${high}, on a scale from ${lo} ${lowWord} to ${hi} ${highWord}.`} className="relative mt-1 h-[22px]">
        <i aria-hidden className="absolute inset-x-0 top-1/2 block h-[6px] -translate-y-1/2 rounded-full bg-[var(--ns-line)]" />
        <i aria-hidden className="absolute top-1/2 block h-[14px] -translate-y-1/2 rounded-full bg-[var(--ns-band-grade)] shadow-[inset_0_0_0_0.5px_var(--ns-line)]" style={{ left: at(low), width: `calc(${at(high)} - ${at(low)})` }} />
        <i aria-hidden className="absolute top-1/2 block size-[13px] -translate-x-1/2 -translate-y-1/2 rounded-full bg-[var(--ns-series)] shadow-[0_0_0_2.5px_var(--ns-canvas),0_0_14px_4px_color-mix(in_oklab,var(--ns-series)_var(--ns-glow),transparent)]" style={{ left: at(value) }} />
      </div>
      <div aria-hidden className="relative h-4 font-[family-name:var(--ns-font-mono)] text-[length:var(--ns-text-meta)] text-[var(--ns-ink-3)]">
        <span className="absolute left-0">{`${lo} ${lowWord}`}</span>
        {(low - lo) / (hi - lo) > 0.16 && (
          <span className="absolute -translate-x-1/2" style={{ left: at(low) }}>
            {low}
          </span>
        )}
        {(hi - high) / (hi - lo) > 0.16 && (high - low) / (hi - lo) > 0.08 && (
          <span className="absolute -translate-x-1/2" style={{ left: at(high) }}>
            {high}
          </span>
        )}
        <span className="absolute right-0">{`${hi} ${highWord}`}</span>
      </div>
      {rows && rows.length > 0 && (
        <dl className="m-0 mt-2 flex flex-col">
          {rows.map((r) => (
            <div key={r.label} className="flex items-baseline justify-between gap-4 border-t-[0.5px] border-[var(--ns-line)] py-2">
              <dt className="text-[var(--ns-ink-2)]">{r.label}</dt>
              <dd className="m-0 tabular-nums">{r.value}</dd>
            </div>
          ))}
        </dl>
      )}
    </div>
  );
}

export { LoadRange, type LoadRangeProps };
```

The foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://notchset.dev/r/notchset-foundation.json.