Katucharts
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Financeiro · katucharts.js/finance

Volume por Preço

type: 'vbp'

Barras de volume horizontais agrupadas por nível de preço, sobrepostas ao gráfico de preço — mostra onde mais volume foi negociado.

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

Ao Vivo
Volume por Preço
Editar · JSON

Formato de dados

série de indicador — lê close + volume da série linkedTo

Estrutura de dados

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

series: [
  { id: 'px', type: 'candlestick', data: [/* OHLC */] },
  { type: 'vbp', linkedTo: 'px', params: { ranges: 12 } }
]

Exemplo

KatuCharts.chart('container', {
  series: [
    { id: 'px', type: 'candlestick', data: ohlc },
    { type: 'vbp', linkedTo: 'px', params: { ranges: 12 } }
  ]
});

Opções específicas do tipo

OpçãoDescrição
params.rangesNúmero de faixas de preço (padrão 12).
colorPreenchimento da barra (sobreposição translúcida).

Common errors

Why does my volume por preço 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 volume por preço chart in JavaScript?
Install with `npm install katucharts.js`, import the module with `import 'katucharts.js/finance';`, then call KatuCharts.chart(container, { chart: { type: 'vbp' }, series: [...] }).
Why does my volume por preço 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.
Opções comuns (color, visible, marker, dataLabels, animation, events, zones…) se aplicam a cada tipo — veja Configuração → series. Veja renderizado na galeria.