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Clever Ops

Plumb Line

A surveyor's plumb bob hangs from the pointer on a hairline string, true damped pendulum physics, a live degree readout, and a PLUMB reward for holding still. React + Tailwind tokens.

Preview & code

Loading Plumb Line preview

Installation

pnpm dlx shadcn@latest add @cleverui/cursor-plumb-line

Requires the @cleverui registry in your components.json, a one-off, two-line setup.

Usage

tsx
import { CursorPlumbLine } from '@/components/ui/cursor-plumb-line'
Exampletsx
import { CursorPlumbLine } from '@/components/ui/cursor-plumb-line'

export default function CursorPlumbLineDemo() {
  return (
    <div className="relative min-h-[560px] overflow-hidden">
      <CursorPlumbLine length={72} showReadout />
      <div className="pointer-events-none relative mx-auto flex min-h-[560px] max-w-3xl flex-col items-center justify-center px-6 py-24 text-center">
        <p className="font-mono text-[11px] uppercase tracking-[0.2em] text-muted-foreground sm:text-xs">
          Spectacle · damped pendulum
        </p>
        <h2 className="mt-4 text-4xl font-semibold tracking-tight text-balance sm:text-5xl">
          Hang true.
        </h2>
        <p className="mt-4 max-w-md text-sm leading-relaxed text-muted-foreground">
          A surveyor&apos;s bob hangs from your pointer. Flick wide, then hold still,
          within half a degree it stamps PLUMB.
        </p>
      </div>
    </div>
  )
}

API reference

CursorPlumbLine accepts the following props.

PropTypeDefaultDescription
lengthnumber72string length in px (clamped 48-120)
showReadoutbooleantruemono degree readout beside the bob

…plus everything from React.HTMLAttributes<HTMLDivElement>: className, event handlers, aria attributes and the rest pass straight through.

Frequently asked questions

How do I install the Plumb Line component?

Register the @cleverui registry in your components.json ("@cleverui": "https://cleverops.com.au/r/{name}.json"), then run `npx shadcn@latest add @cleverui/cursor-plumb-line`. The shadcn CLI copies the source into your project, you own the code from that point. You can also copy the source directly from this page.

What dependencies does Plumb Line require?

Plumb Line uses motion on top of React and Tailwind CSS. You don't need to install it manually, the shadcn CLI resolves and installs npm dependencies automatically when you add the component.

Can I theme Plumb Line to match my brand?

Yes. The component is styled entirely with Tailwind utilities over standard design tokens (primary, background, muted, border), so it inherits your existing shadcn/ui theme automatically. Change your CSS variables and the component follows, no source edits needed for palette, radius, or fonts.

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