How do I create a spline chart in JavaScript?

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

Why does my spline 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

Spline

type: 'spline'

Línea suavizada interpolada usando una curva Catmull-Rom (α=0,5). Misma API que línea, pero la curva pasa naturalmente por cada punto.

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

En Vivo

Spline

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: '2024', data: [6, 8, 12, 17, 21, 25] }
]

Ejemplo

import KatuCharts from 'katucharts.js';

KatuCharts.chart('container', {
  chart: { type: 'spline' },
  series: [{ name: '2024', data: [6, 8, 12, 17, 21, 25] }]
});

Opciones específicas del tipo

Opción	Descripción
`(hereda todas las opciones de línea)`	marker, dashStyle, zones, step, connectNulls, …

Variaciones

Etiquetas de datos

Muestra el valor de cada punto sobre la curva con una cadena de formato.

KatuCharts.chart('container', {
  chart: { type: 'spline' },
  series: [{
    name: 'NPS', data: [38, 45, 42, 58, 64],
    marker: { enabled: true },
    dataLabels: { enabled: true, format: '{point.y}' }
  }]
});

Common errors

Why does my spline 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 spline chart in JavaScript?: Install with `npm install katucharts.js`, then call KatuCharts.chart(container, { chart: { type: 'spline' }, series: [...] }).
Why does my spline 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.