Treemap

Edite o JSON à direita e pressione Executar (ou ⌘/Ctrl + Enter) — dados, títulos, categorias e cores se atualizam ao vivo.

Formato de dados

Estrutura de dados

O JSON que você passa dentro do gráfico — coloque direto na sua series.

data: [
  { name: 'Media', value: 80 },
  { name: 'Docs', value: 45 },
  { name: 'Code', value: 60 }
]

Exemplo

import KatuCharts from 'katucharts.js';

KatuCharts.chart('container', {
  chart: { type: 'treemap' },
  series: [{
    data: [
      { name: 'Media', value: 80 },
      { name: 'Docs', value: 45 },
      { name: 'Code', value: 60 }
    ]
  }]
});

Opções específicas do tipo

Variações

KatuCharts.chart('container', {
  chart: { type: 'treemap' },
  series: [{
    allowDrillToNode: true, colorByPoint: true,
    data: [
      { id: 'media', name: 'Media' },
      { id: 'm1', parent: 'media', name: 'Video', value: 48 },
      { id: 'm2', parent: 'media', name: 'Audio', value: 22 }
    ]
  }]
});

Common errors

Why does my treemap 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 treemap chart in JavaScript?

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

Why does my treemap 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.