# Bump

> Who leads, week by week. Sample data: weekly trading-volume rank of five tokens, weeks 33 to 40.

- Type 045 · Compare items
- Component: `<Bump>`, the same name as the Figma component
- Install: `npx shadcn add @chartory/bump` (free in Hearth: the public registry, no token; Signal with Code and Complete)
- Type page: https://usechartory.com/charts/bump

## Installation

1. **Set up the registry once.** This chart is free in Hearth and MIT licensed: no token. Add @chartory to components.json once (the URL alone, no headers), or skip this when another chart is already installed. [Installation guide](https://usechartory.com/docs/installation)

2. **Add the chart.** One command adds the Bump component to your project.

```bash
npx shadcn add @chartory/bump
```

3. **Use it.** Pass your rows. The props are the Figma properties.

usage.tsx:

```tsx
import { Bump }
  from "@/components/chartory/bump"

<Bump
  data={volumeRank}
  size="m"
/>
```

## Props

### `<Bump>`

Every prop but data is a Figma property with the same name and values.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| data | BumpData | Required | The chart's data. The tables below list every field. |
| size | "xs" \| "s" \| "m" \| "l" | "m" | The size class. Each one is laid out again from the data. |
| color | "cat-1" \| "cat-2" \| "cat-3" \| "cat-4" | "cat-1" | The data colour of the primary marks (data/primary). |

### BumpData

The data prop: one object for the whole chart.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| cols | string[] | Required | The column labels, in order. |
| rows | BumpRow[] | Required | One entry per row. |
| focus? | string | — | The highlighted item. |

### BumpRow

One object per entry in rows.

| Prop | Type | Default | Note |
| --- | --- | --- | --- |
| label | string | Required | The name shown on the chart. |
| tok | string | Required | The colour token, e.g. "data/primary". |
| ranks | number[] | Required | The rank per period. |

## Bump chart: a React and Figma chart in four sizes

### What does a bump chart show?

A bump chart shows the rank of each item over time instead of its value. Lines cross when items swap places, so you see who moved up, who fell back and how long a lead lasted. Use it for leaderboards, market share ranks and search positions.

Chartory ships it as a Figma component and a React component with the same name. The code installs from the shadcn registry with one command and lands in your project as a file you own.

### What is the Bump component?

It is one **<Bump>** component. Its props are the Figma properties with the same names and values, and the props table above lists them. The data is items with a rank per period.

Sizes **XS**, **S**, **M** and **L** re-lay the chart out from the data instead of scaling it, so labels stay readable at every size.

### When should I use it?

- **Is the rank enough without the values?** Yes means the bump fits.
- **Do the ranks change over time?** Yes means the bump fits.
- **Are there more than two periods?** Yes means the bump fits.

### When does another type fit better?

- **Ranks hide how far ahead the leader is.** Use Multi-line chart instead.
- **A ranking without time.** Use Horizontal bars instead.
- **Start and end are enough.** Use Slope chart instead.

## Bump chart questions

### Does the Bump chart work with shadcn/ui?

Yes. It installs through the shadcn registry with the shadcn CLI, and the file lands in your project.

### How do I install it?

It is free in Hearth and MIT licensed: add the @chartory registry URL once, no token, then run npx shadcn add @chartory/bump. The Installation guide has the steps.

### Can my coding agent install it?

Yes. Connect the Chartory MCP server and ask for the bump chart; the agent runs the same command and you review the diff.

### What data does it expect?

Items with a rank per period. The sample data comes with the component, and the props table lists every field.

### Which sizes does it ship in?

XS, S, M and L, in Figma and in code. Each size is laid out again from the data, so text and lines keep their size.

### Is it in the Figma file too?

Yes. chart/045-bump-volume-rank has the same properties as the component.

### Does it follow light and dark mode?

Yes. Every paint is a token, so the chart follows light and dark mode and the collection you pick.

### Which plan has the code?

None for Hearth: it is free in the public registry, no token. The Signal collection (@chartory/signal) comes with Code and Complete.