VibeUI

Charts

Gradient Area

An area with a vertical gradient and a dashed average: the fill fades towards the axis instead of fighting the line, and the average gives a reference point.

  • chart
  • area
  • gradient
  • svg

Preview

1440pxHost theme

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.

put this in the header: https://vibeui.ru/c/chart-012?lang=en

Traffic this month
610

Единица измерения: visits per day. Максимум шкалы — 610.

Traffic this month, visits per day
01240
05310
09286
13402
17368
21455
25520
29610
Show the full instructions

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

# Install and place "chart-012" (Gradient Area) from VibeUI

## 1. Install first — do not skip, do not recreate
Run this exact command before writing any code:
npx shadcn@latest add https://vibeui.ru/r/chart-012.json

Registry item: https://vibeui.ru/r/chart-012.json
Installs to: components/vibeui/chart-012.tsx (the exact path follows this project's components.json aliases).
npm dependencies: none.
Registry dependencies: none.

Install it from the registry. Do not recreate it from the description,
do not substitute a similar component from another library, and do not
rewrite it to match the project's existing style.

## 2. What it is
An area with a vertical gradient and a dashed average: the fill fades towards the axis instead of fighting the line, and the average gives a reference point.

An area chart with a gradient fill: the gradient fades to the axis, the line runs above it, a dashed rule marks the period average, and the large figure beside the heading is the latest value. The data is mirrored in a hidden table. Zero dependencies, one file, no client JS.

## 3. How to use it
import { Chart012 } from "@/components/vibeui/chart-012"

<Chart012
  title="Traffic this month"
  showAverage
  points={[{ label: "01", value: 240 }, { label: "05", value: 310 }]}
/>

Read the installed file for the full prop list.

## 4. Where to place it
This is a small inline component. Put it exactly where the user asked,
inside the existing markup. Do not create a new page, section or
wrapper for it. If a similar control already sits in that spot,
replace it instead of adding a second one.

Placement: ___
(The user fills this line in. If it is still blank, ask where to put it
instead of guessing.)

## 5. Keep exactly as installed
- the local --vibeui-chart-012-* palette — do not swap it for your theme tokens (bg-card, --chart-1 and the like)
- the gradient fading towards the axis: a solid fill pulls attention from the line to the blob
- the line above the area — an area with no outline reads as a smudge
- the dashed average with its label: without a reference «up» and «down» have nothing to compare against
- the hidden table and aria-hidden on the svg — otherwise the chart is an empty image to a screen reader
- tabular numerals on the large value: it changes most often and must not shift the heading

## 6. You may change
- the points array: a label and a value per day
- title — the chart heading
- unit — the unit named in the caption under the chart
- showAverage — whether the dashed average is drawn
- the accent through the accent prop — it colours the line, the gradient and the large value

## 7. Rules
- The fill reaches the bottom of the chart, not the data zero: that is wrong for series with negatives.
- Points must be evenly spaced in time: missing days go unnoticed and the grid stays even.
- The gradient id is fixed, so two copies on one page share a definition — deliberate and safe, the definitions are identical.
- Do not lift the CSS variables into globals.css: the component has to stay a single file.

## 8. Verify
- it renders with no console errors;
- it looks like the preview on the VibeUI page you copied this from;
- if it does not, you changed something listed in section 5 — put it back.

For developers

npx shadcn@latest add https://vibeui.ru/r/chart-012.json
https://vibeui.ru/r/chart-012.json

Компонент самодостаточен: один файл, без зависимостей, собственная палитра в локальных переменных --vibeui-chart-012-*. Серверный: хуков нет. Заливка — linearGradient в defs от 42% непрозрачности акцента до 2%, поэтому площадь читается как объём, а не как цветное пятно. Линия рисуется поверх той же последовательности точек, среднее считается по массиву и печатается подписью у пунктира. Данные продублированы визуально скрытой таблицей.

Component source

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

import type { ComponentPropsWithoutRef, CSSProperties } from "react"

export type Chart012Point = {
  label: string
  value: number
}

export type Chart012Props = Omit<
  ComponentPropsWithoutRef<"figure">,
  "children" | "title"
> & {
  title?: string
  points?: Chart012Point[]
  unit?: string
  showAverage?: boolean
  accent?: string
}

// Идея компонента: площадь с вертикальным градиентом вместо плоской заливки.
// Градиент гаснет к оси, поэтому площадь не спорит с линией за внимание, а
// пунктир среднего даёт линии точку отсчёта: без него «поднялось» и
// «опустилось» не с чем сравнить.
const STYLES = `
:where([data-vibeui-block="chart-012"]){
--vibeui-chart-012-bg:oklch(1 0 0);
--vibeui-chart-012-fg:oklch(0.22 0.014 265);
--vibeui-chart-012-muted:oklch(0.55 0.014 265);
--vibeui-chart-012-border:oklch(0.91 0.006 265);
--vibeui-chart-012-grid:oklch(0.94 0.005 265);
--vibeui-chart-012-accent:oklch(0.58 0.16 200);
--vibeui-chart-012-font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
[data-vibeui-block="chart-012"]{
display:flex;flex-direction:column;gap:0.5rem;
width:100%;max-width:30rem;box-sizing:border-box;margin:0;padding:0.875rem;
background:var(--vibeui-chart-012-bg);
border:1px solid var(--vibeui-chart-012-border);border-radius:0.875rem;
color:var(--vibeui-chart-012-fg);font-family:var(--vibeui-chart-012-font);
}
[data-vibeui-block="chart-012"] [data-part="head"]{
display:flex;align-items:baseline;justify-content:space-between;gap:0.75rem;
}
[data-vibeui-block="chart-012"] [data-part="title"]{margin:0;font-size:0.875rem;font-weight:650}
[data-vibeui-block="chart-012"] [data-part="now"]{
font-size:1.125rem;font-weight:700;font-variant-numeric:tabular-nums;
color:var(--vibeui-chart-012-accent);
}
[data-vibeui-block="chart-012"] svg{display:block;width:100%;height:auto}
[data-vibeui-block="chart-012"] [data-part="grid"]{stroke:var(--vibeui-chart-012-grid);stroke-width:1}
[data-vibeui-block="chart-012"] [data-part="area"]{fill:url(#vibeui-chart-012-fade)}
[data-vibeui-block="chart-012"] [data-part="line"]{
fill:none;stroke:var(--vibeui-chart-012-accent);stroke-width:2;stroke-linejoin:round;
}
[data-vibeui-block="chart-012"] [data-part="average"]{
stroke:var(--vibeui-chart-012-muted);stroke-width:1;stroke-dasharray:4 3;
}
[data-vibeui-block="chart-012"] [data-part="average-text"]{
fill:var(--vibeui-chart-012-muted);font-size:8px;font-variant-numeric:tabular-nums;
}
[data-vibeui-block="chart-012"] [data-part="name"]{
fill:var(--vibeui-chart-012-muted);font-size:8.5px;text-anchor:middle;
}
[data-vibeui-block="chart-012"] [data-part="unit"]{margin:0;font-size:0.75rem;color:var(--vibeui-chart-012-muted)}
[data-vibeui-block="chart-012"] [data-part="data"]{
position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
clip-path:inset(50%);white-space:nowrap;border:0;
}
@media (prefers-reduced-motion:reduce){[data-vibeui-block="chart-012"] *{animation:none!important;transition:none!important}}
`

const LEFT = 6
const RIGHT = 294
const TOP = 10
const BASE = 112

const DEFAULT_POINTS: Chart012Point[] = [
  { label: "01", value: 240 },
  { label: "05", value: 310 },
  { label: "09", value: 286 },
  { label: "13", value: 402 },
  { label: "17", value: 368 },
  { label: "21", value: 455 },
  { label: "25", value: 520 },
  { label: "29", value: 610 },
]

/**
 * График площади с градиентной заливкой и линией среднего.
 * Один файл, ноль зависимостей, собственная палитра.
 */
export function Chart012({
  title = "Трафик за месяц",
  points = DEFAULT_POINTS,
  unit = "визитов в день",
  showAverage = true,
  accent,
  className,
  style,
  ...props
}: Chart012Props) {
  const values = points.map((point) => point.value)
  const max = Math.max(...values, 1)
  const average = values.reduce((sum, value) => sum + value, 0) / values.length

  const place = (value: number, index: number) => ({
    x:
      LEFT +
      (points.length > 1 ? (index / (points.length - 1)) * (RIGHT - LEFT) : 0),
    y: BASE - (value / max) * (BASE - TOP),
  })

  const spots = points.map((point, index) => place(point.value, index))
  const line = spots
    .map((spot, index) => `${index === 0 ? "M" : "L"}${spot.x} ${spot.y}`)
    .join(" ")
  const area = `${line} L${RIGHT} ${BASE} L${LEFT} ${BASE} Z`
  const averageY = BASE - (average / max) * (BASE - TOP)

  const palette = {
    ...(accent ? { "--vibeui-chart-012-accent": accent } : null),
    ...style,
  } as CSSProperties

  return (
    <>
      <style href="vibeui-chart-012" precedence="medium">
        {STYLES}
      </style>
      <figure
        {...props}
        data-vibeui-block="chart-012"
        className={className}
        style={palette}
      >
        <div data-part="head">
          <figcaption data-part="title">{title}</figcaption>
          <span data-part="now">{values[values.length - 1]}</span>
        </div>
        <svg viewBox="0 0 300 130" aria-hidden="true" focusable="false">
          <defs>
            {/* Градиент гаснет к оси: площадь показывает объём, но не спорит
                с линией за внимание. */}
            <linearGradient
              id="vibeui-chart-012-fade"
              x1="0"
              y1="0"
              x2="0"
              y2="1"
            >
              <stop
                offset="0%"
                stopColor="var(--vibeui-chart-012-accent)"
                stopOpacity="0.42"
              />
              <stop
                offset="100%"
                stopColor="var(--vibeui-chart-012-accent)"
                stopOpacity="0.02"
              />
            </linearGradient>
          </defs>
          {[TOP, (TOP + BASE) / 2, BASE].map((y) => (
            <line key={y} data-part="grid" x1={LEFT} y1={y} x2={RIGHT} y2={y} />
          ))}
          <path data-part="area" d={area} />
          <path data-part="line" d={line} />
          {showAverage ? (
            <g>
              <line
                data-part="average"
                x1={LEFT}
                y1={averageY}
                x2={RIGHT}
                y2={averageY}
              />
              <text data-part="average-text" x={LEFT + 2} y={averageY - 4}>
                среднее {Math.round(average)}
              </text>
            </g>
          ) : null}
          {points.map((point, index) => (
            <text
              key={point.label}
              data-part="name"
              x={spots[index].x}
              y={BASE + 14}
            >
              {point.label}
            </text>
          ))}
        </svg>
        <p data-part="unit">
          Единица измерения: {unit}. Максимум шкалы — {max}.
        </p>
        <table data-part="data">
          <caption>
            {title}, {unit}
          </caption>
          <tbody>
            {points.map((point) => (
              <tr key={point.label}>
                <th scope="row">{point.label}</th>
                <td>{point.value}</td>
              </tr>
            ))}
          </tbody>
        </table>
      </figure>
    </>
  )
}