Indicators

33 built-in indicators. Add by id; each registry entry validates its own params.

Adding an indicator

const instanceId = chart.addIndicator('rsi', { period: 14 }, 'bottom')
chart.updateIndicator(instanceId, { period: 21 })
chart.removeIndicator(instanceId)

Overlay indicators

Drawn on the main price pane.

id	Name
`sma`	Simple Moving Average
`ema`	Exponential Moving Average
`wma`	Weighted Moving Average
`hullMa`	Hull Moving Average
`bollingerBands`	Bollinger Bands
`keltnerChannels`	Keltner Channels
`donchianChannels`	Donchian Channels
`vwap`	VWAP
`anchoredVwap`	Anchored VWAP
`parabolicSar`	Parabolic SAR
`supertrend`	Supertrend
`ichimoku`	Ichimoku Kinko Hyo
`pivotPoints`	Pivot Points (Classic)
`zigzag`	ZigZag
`linearRegressionChannel`	Linear Regression Channel

Panel indicators

Rendered in their own pane beneath the chart.

id	Name
`rsi`	Relative Strength Index
`macd`	MACD
`stochastic`	Stochastic
`stochasticRsi`	Stochastic RSI
`atr`	Average True Range
`adx`	Average Directional Index
`cci`	Commodity Channel Index
`mfi`	Money Flow Index
`williamsR`	Williams %R
`obv`	On-Balance Volume
`chaikinOscillator`	Chaikin Oscillator (exposes cumulative ADL)
`awesomeOscillator`	Awesome Oscillator
`momentum`	Momentum
`roc`	Rate of Change
`volume`	Volume bars
`volumeRoc`	Volume Rate of Change
`standardDeviation`	Standard Deviation
`trix`	TRIX

Web Worker pipeline

For heavy indicator workloads, offload calculation off the render loop:

import { IndicatorWorkerHost } from '@tradecanvas/chart'

const host = new IndicatorWorkerHost()
await host.ping()
const result = await host.calculate('rsi', bars, { period: 14 })
host.terminate()

Pass null as the worker to use the synchronous fallback (SSR, tests).