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Chart

Punch Card

A "day × hour" heatmap drawn with dots instead of filled grid cells: the value is encoded as radius, so the map still reads where colour contrast is weak.

React + Tailwind, shadcn-compatible: press “Copy for AI” and your Cursor or Claude Code agent installs it with the shadcn CLI.

What you can change

  • the matrix, days and hours
  • title — the map heading
  • unit — the unit named under the map

A link for your AI agent: preview, code and instructions.

Preview

1440pxHost theme
Punch Card — A "day × hour" heatmap drawn with dots instead of filled grid cells: the value is encoded as radius, so the map still reads where colour contrast is weak.

Use it with AI

  1. 1. Copy the link.
  2. 2. Write to your agent in your own words and drop the link into the sentence.
  3. 3. The agent opens the link and installs the component from the registry.
AI
1Pick it here

put this on the home page as the hero:

https://vibeui.club/c/chart-025?lang=en&theme=dark

2Paste into the chat
3Get it in your project

Not sure where to paste it? Step-by-step guide

Show the full instructions

What the link says, spelled out. Use it when your agent cannot open links — paste this text instead.

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How to use

<Chart025
  title="Hourly activity"
  unit="events per hour"
  matrix={[[2, 4, 18, 34]]}
/>

A sample call. The agent installs the component itself from the registry via the “Copy for AI” link.

Settings

Heading
title · default: Hourly activity
Unit
unit · default: events per hour
Accent
accent · default: theme colour
Surface
background · default: theme colour
Entrance animation
animate · default: on

More in Chart

FAQ

How do I add Punch Card with Cursor or Claude Code?
Press “Copy for AI” on this page and paste it into your agent's chat. The instruction contains the shadcn CLI install command, the dependencies and what to keep, so the agent installs this exact component instead of recreating a lookalike.
What does Punch Card depend on?
No npm packages beyond React and Tailwind CSS.
What can I change in Punch Card?
Adapt: the matrix, days and hours; title — the map heading; unit — the unit named under the map. Keep as installed: the local --vibeui-chart-025-* palette — do not swap it for your theme tokens; dot radius as the primary channel for the value — not colour or opacity alone; hour labels every third tick, or the numbers collide on a narrow width.
Is Punch Card free?
Yes. The preview is open without an account; with a free account you can copy up to 20 components a month.

For developers

npx shadcn@latest add https://vibeui.club/r/pro/chart-025.json

This command needs a signed link: sign in and open “Component source” below — it issues a working link valid for 30 minutes. All install options

Technical notes

The component is self-contained: one file, zero dependencies, the palette in --vibeui-chart-025-*. Server component, no client JS. The "day × hour" matrix is built not by filling grid cells but from circles in an SVG: the radius carries the magnitude and the opacity repeats it on a second channel. The default matrix is not stored as a literal of 168 numbers but computed by a daily-activity formula with a dip over the weekend. The data for a screen reader is in a visually hidden table with a caption and scope on the headers. Motion: circles grow as a wave by index, hover shows the value; reduced motion shows everything at once; animate=false turns it off.

Tags

  • chart
  • heatmap
  • activity
  • punch-card
  • animated
Component source

The same file your agent installs. Here in case you would rather copy it by hand.

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