How do I create a área chart in JavaScript?

Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'area' }, series: [...] }).

Why does my área chart render as a line chart?

The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type " ", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.

Why do I get "Cannot read properties of null (reading 'appendChild')"?

The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.

Why is the chart rendering with zero height?

The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

Cartesiano

Área

type: 'area'

Área rellena bajo una línea. Compatible con apilamiento normal y porcentual, color de relleno negativo y hover por área.

Edita el JSON a la derecha y presiona Ejecutar (o ⌘/Ctrl + Intro) — los datos, títulos, categorías y colores se actualizan en vivo.

En Vivo

Área

Editar · JSON

Formato de datos

igual que línea

Estructura de datos

El JSON que pasas dentro del gráfico — colócalo directamente en tu series.

series: [
  { name: 'Free', data: [120, 260, 410, 600] }
]

Ejemplo

import KatuCharts from 'katucharts.js';

KatuCharts.chart('container', {
  chart: { type: 'area' },
  series: [{ name: 'Free', data: [120, 260, 410, 600], fillOpacity: 0.3 }]
});

Opciones específicas del tipo

Opción	Descripción
`fillOpacity`	Opacidad del relleno de área (predeterminado 0,75).
`fillColor`	Anula el color de relleno.
`negativeFillColor`	Relleno por debajo del umbral.
`stacking`	'normal' o 'percent'.
`trackByArea`	El hover se activa en el área, no solo en la línea.

Variaciones

Apilado porcentual

Apila las series al 100% para comparar la composición a lo largo del tiempo.

KatuCharts.chart('container', {
  chart: { type: 'area' },
  plotOptions: { area: { stacking: 'percent' } },
  series: [
    { name: 'Escritorio', data: [450, 520, 480, 610, 580] },
    { name: 'Móvil', data: [280, 350, 420, 510, 620] }
  ]
});

Relleno por umbral negativo

Rellena por debajo de un umbral con un negativeColor distinto.

KatuCharts.chart('container', {
  chart: { type: 'area' },
  series: [{
    data: [-12, -6, 4, 10, -3, 14, 22, 18],
    threshold: 0,
    negativeColor: '#B43417'
  }]
});

Relleno degradado

Desvanece el relleno del área con un linearGradient vertical pasado en fillColor.

KatuCharts.chart('container', {
  chart: { type: 'area' },
  series: [{
    name: 'Usuarios',
    data: [320, 410, 380, 520, 610, 700, 540],
    fillColor: {
      linearGradient: { x1: 0, y1: 0, x2: 0, y2: 1 },
      stops: [[0, 'rgba(45,133,116,0.4)'], [1, 'rgba(45,133,116,0)']]
    }
  }]
});

Common errors

Why does my área chart render as a line chart?: The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?: The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?: The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

FAQ

How do I create a área chart in JavaScript?: Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'area' }, series: [...] }).
Why does my área chart render as a line chart?: The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?: The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?: The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

Las opciones comunes (color, visible, marker, dataLabels, animation, events, zones…) se aplican a todos los tipos — véase Configuración → series. Míralo renderizado en la galería.