金融 · katucharts.js/finance
技术指标
type: 'indicators'通过 type + linkedTo + params 以声明方式作为系列添加的技术指标，依据关联系列计算。叠加类（SMA、EMA、WMA、DEMA、TEMA、Bollinger、VWAP、Ichimoku、PSAR）共用价格轴；振荡类（RSI、MACD、Stochastic、ATR、CCI、ROC、Momentum、ADX）通过堆叠的 yAxis 显示在各自的面板中。
编辑右侧的JSON并按Run（或⌘/Ctrl + Enter）——数据、标题、类别和颜色全部实时更新。
实时
技术指标
编辑 · JSON
数据格式
指标系列不携带数据 — 读取 linkedTo 系列
数据结构
传入图表的 JSON——可直接放进你的 series。
series: [
{ id: 'px', type: 'candlestick', data: [/* OHLC */] },
{ type: 'sma', linkedTo: 'px', params: { period: 14 } },
{ type: 'bollinger', linkedTo: 'px', params: { period: 20, stdDev: 2 } }
]示例
import KatuCharts from 'katucharts.js';
import 'katucharts.js/finance';
KatuCharts.chart('container', {
series: [
{ id: 'px', type: 'candlestick', data: ohlc },
{ type: 'sma', linkedTo: 'px', params: { period: 14 } },
{ type: 'bollinger', linkedTo: 'px', params: { period: 20, stdDev: 2 } }
]
});类型特定选项
| 选项 | 描述 |
|---|---|
type | sma | ema | wma | dema | tema | rsi | macd | stochastic | bollinger | atr | vwap | obv | vbp | ichimoku | cci | roc | momentum | adx | psar |
linkedTo | 用于计算的价格系列 id。 |
params | 指标参数，例如 { period: 20, stdDev: 2 }。 |
yAxis | 振荡类指标所用堆叠面板轴的索引。 |
Common errors
- Why does my 技术指标 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 技术指标 chart in JavaScript?
- Install with `npm install katucharts.js`, import the module with `import 'katucharts.js/finance';`, then call KatuCharts.chart(container, { chart: { type: 'indicators' }, series: [...] }).
- Why does my 技术指标 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.