Histogram

values

Raw numeric samples, not pre-aggregated bin counts.

• HistogramValues

  Type definition

width

Chart width in pixels. If the container width changes, update width from a ResizeObserver.

height

Chart height in pixels. Allow space for axes, titles, and the legend.

brandLogo

The default is the Syidax symbol and wordmark. With the Pro chart.branding entitlement, set none to remove it or provide a PNG, JPEG, or WebP data URL to replace it.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

brandPosition

The corner where the logo is anchored. Community and Pro both support all four corners, using the same position on screen and in image exports.

bins

The number of bins or the binning method.

• HistogramBinsRule

  Type definition

binWidth

Explicit bin width — wins over bins.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

domainMin

Domain overrides (observations outside clamp into the edge bins).

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

domainMax

Set as an HTML attribute or JavaScript property. type: number.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

color

Bar fill. Accepts a single CSS colour, an array, or a comma string (first wins).

edgeColor

1px separator between gapless bars.

activeColor

Fill for the hovered bin.

valueAxisLabel

Set as an HTML attribute or JavaScript property. type: string.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

measure

The vertical axis represents count, percent, or density.

• HistogramNormalize

  Type definition

cumulative

running sums (the empirical CDF for density).

barGap

a CSS-px gap between the bars (0 = gapless with the edge separators).

xAxis

Configure the horizontal axis type, categories, range, and formatting. For a category axis, match the categories order to the value array indices. Charts supporting multiple axes can accept an axis array.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianAxisInput

  Type definition

yAxis

Configure the vertical axis range, ticks, labels, and direction. Use consistent units for comparisons, and consider a zero baseline when comparing bar lengths.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianAxisInput

  Type definition

gridLines

Allowed values: auto, off. Default: undefined.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianGridLinesInput

  Type definition

crosshair

Crosshair that follows the cursor across the plot.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianCrosshairInput

  Type definition

zoom

Zoom: 'x' | 'y' | 'xy' | true (x) enable the drag rectangle, the pan, Ctrl + wheel, the pinch and the keyboard (+ / - / Escape) on the primary axes; an object refines mode / drag / keyboard / minRangePx / resetButton / pan / wheel / pinch / inside. Off by default. The bins re-project through the zoomed frame; zoomTo / zoomBy / panBy / resetZoom work regardless of the gesture switches.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianZoomInput

  Type definition

chartTitle

The title inside the chart. Explain the data's unit and meaning alongside it.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

chartSubtitle

The subtitle inside the chart.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

tooltipEnabled

Set as an HTML attribute or JavaScript property. type: boolean.

tooltipFormat

Pass as a JavaScript property. type: (detail: HistogramPointEventDetail) => string.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• HistogramPointEventDetail

  Type definition

tooltip

Rich tooltip configuration (matches the line/area/column family).

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• CartesianTooltipInput

  Type definition

enableMouseTracking

Set as an HTML attribute or JavaScript property. type: boolean.

animated

Whether to animate initial display and data changes.

animationDuration

Animation duration in milliseconds.

animationEasing

Allowed values: linear, ease-out, ease-in, ease-in-out. Default: 'ease-out'.

• HistogramEasing

  Type definition

animationType

Allowed values: initial, update. Default: undefined.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• HistogramAnimationType

  Type definition

streamSource

A stream source for live data. Check the contract for the specific type.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

• HistogramStreamSource

  Type definition

streamWindow

The streaming data range to keep visible.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

streamMax

The maximum number of streaming data points to retain.

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

engine

Renderer selection: auto, standard, or pro. Engine selection is separate from permission to use a Pro chart type.

• HistogramEngineMode

  Type definition

proThreshold

Set as an HTML attribute or JavaScript property. type: number.

unavailable

Allowed values: fallback, error. Default: 'fallback'.

• HistogramUnavailableBehaviour

  Type definition

rendered

Emits rendering results in detail when chart drawing completes.

Event name: rendered. Names are case-sensitive. Read the payload from detail on CustomEvent<HistogramRenderResult & { tier: HistogramEngineTier }>.

chart.addEventListener('rendered', event => {
  console.log(event.detail); // HistogramRenderResult & { tier: HistogramEngineTier }
});

• HistogramRenderResult

  Type definition

• HistogramEngineTier

  Type definition

pointClick

A point selection event. Read the selected data and index from CustomEvent.detail.

Event name: pointClick. Names are case-sensitive. Read the payload from detail on CustomEvent<HistogramPointEventDetail>.

chart.addEventListener('pointClick', event => {
  console.log(event.detail); // HistogramPointEventDetail
});

• HistogramPointEventDetail

  Type definition

pointHover

CustomEvent.detail type: HistogramPointEventDetail | null. Event names are case-sensitive.

Event name: pointHover. Names are case-sensitive. Read the payload from detail on CustomEvent<HistogramPointEventDetail | null>.

chart.addEventListener('pointHover', event => {
  console.log(event.detail); // HistogramPointEventDetail | null
});

• HistogramPointEventDetail

  Type definition

crosshairMove

CustomEvent.detail type: CartesianCrosshairEventDetail | null. Event names are case-sensitive.

Event name: crosshairMove. Names are case-sensitive. Read the payload from detail on CustomEvent<CartesianCrosshairEventDetail | null>.

chart.addEventListener('crosshairMove', event => {
  console.log(event.detail); // CartesianCrosshairEventDetail | null
});

• CartesianCrosshairEventDetail

  Type definition

pointContextMenu

CustomEvent.detail type: ChartPointContextMenuEventDetail<HistogramPointEventDetail>. Event names are case-sensitive.

Event name: pointContextMenu. Names are case-sensitive. Read the payload from detail on CustomEvent<ChartPointContextMenuEventDetail<HistogramPointEventDetail>>.

chart.addEventListener('pointContextMenu', event => {
  console.log(event.detail); // ChartPointContextMenuEventDetail<HistogramPointEventDetail>
});

• ChartPointContextMenuEventDetail

  Type definition

• HistogramPointEventDetail

  Type definition

appended

CustomEvent.detail type: { count: number }. Event names are case-sensitive.

Event name: appended. Names are case-sensitive. Read the payload from detail on CustomEvent<{ count: number }>.

chart.addEventListener('appended', event => {
  console.log(event.detail); // { count: number }
});

windowSlid

CustomEvent.detail type: { dropped: number }. Event names are case-sensitive.

Event name: windowSlid. Names are case-sensitive. Read the payload from detail on CustomEvent<{ dropped: number }>.

chart.addEventListener('windowSlid', event => {
  console.log(event.detail); // { dropped: number }
});

chartAnimationStart

CustomEvent.detail type: void. Event names are case-sensitive.

Event name: chartAnimationStart. Names are case-sensitive. Read the payload from detail on CustomEvent<void>.

chart.addEventListener('chartAnimationStart', event => {
  console.log(event.detail); // void
});

chartAnimationEnd

CustomEvent.detail type: void. Event names are case-sensitive.

Event name: chartAnimationEnd. Names are case-sensitive. Read the payload from detail on CustomEvent<void>.

chart.addEventListener('chartAnimationEnd', event => {
  console.log(event.detail); // void
});

chartAnimationInterrupted

CustomEvent.detail type: void. Event names are case-sensitive.

Event name: chartAnimationInterrupted. Names are case-sensitive. Read the payload from detail on CustomEvent<void>.

chart.addEventListener('chartAnimationInterrupted', event => {
  console.log(event.detail); // void
});

tooltipShow

Whether to display the built-in tooltip.

Event name: tooltipShow. Names are case-sensitive. Read the payload from detail on CustomEvent<CartesianTooltipEventDetail>.

chart.addEventListener('tooltipShow', event => {
  console.log(event.detail); // CartesianTooltipEventDetail
});

• CartesianTooltipEventDetail

  Type definition

tooltipHide

CustomEvent.detail type: void. Event names are case-sensitive.

Event name: tooltipHide. Names are case-sensitive. Read the payload from detail on CustomEvent<void>.

chart.addEventListener('tooltipHide', event => {
  console.log(event.detail); // void
});

tooltipAction

CustomEvent.detail type: CartesianTooltipActionEventDetail. Event names are case-sensitive.

Event name: tooltipAction. Names are case-sensitive. Read the payload from detail on CustomEvent<CartesianTooltipActionEventDetail>.

chart.addEventListener('tooltipAction', event => {
  console.log(event.detail); // CartesianTooltipActionEventDetail
});

• CartesianTooltipActionEventDetail

  Type definition

seriesOutsideClick

CustomEvent.detail type: CartesianSeriesOutsideClickEventDetail. Event names are case-sensitive.

Event name: seriesOutsideClick. Names are case-sensitive. Read the payload from detail on CustomEvent<CartesianSeriesOutsideClickEventDetail>.

chart.addEventListener('seriesOutsideClick', event => {
  console.log(event.detail); // CartesianSeriesOutsideClickEventDetail
});

• CartesianSeriesOutsideClickEventDetail

  Type definition

zoomChange

Fired after every zoom change (drag / pan / wheel / pinch / keyboard / api / reset) with the new state.

Event name: zoomChange. Names are case-sensitive. Read the payload from detail on CustomEvent<CartesianZoomChangeEventDetail>.

chart.addEventListener('zoomChange', event => {
  console.log(event.detail); // CartesianZoomChangeEventDetail
});

• CartesianZoomChangeEventDetail

  Type definition

redraw

Redraw the chart using its current data and options. Inspect the rendered result after the returned Promise resolves.

redraw(): Promise<HistogramRenderResult>

Return type: Promise<HistogramRenderResult>. Call the method after element registration and await its Promise result.

• HistogramRenderResult

  Type definition

getActiveTier

An asynchronous method. Check the argument and return types below.

getActiveTier(): Promise<HistogramEngineTier>

Return type: Promise<HistogramEngineTier>. Call the method after element registration and await its Promise result.

• HistogramEngineTier

  Type definition

getBinning

the binning decision behind the current bins: the rule, its kind, n, σ, IQR, the width, the count, a fallback.

getBinning(): Promise<HistogramBinning>

Return type: Promise<HistogramBinning>. Call the method after element registration and await its Promise result.

• HistogramBinning

  Type definition

setData

Replace the bar set.

setData(values: HistogramValues): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

• HistogramValues

  Type definition

appendPoint

Append one value to the stream. Check the argument type and the licensing requirements for streaming.

appendPoint(value: number): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

appendBatch

Append multiple values to the stream. Check the argument type and the licensing requirements for streaming.

appendBatch(values: ReadonlyArray<number>): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

shift

Drop the oldest streamed categories (the data boxes are not the stream).

shift(count: number): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

replace

Swap the streamed set (replace([]) clears it); the base values never leave. Without chart.streaming the dies upsert into the base like a batch (quietly: no appended, no binChanged, as a ring replace).

replace(values: ReadonlyArray<number>): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

getStreamSource

The stream session's source (Chart Pro): like the stream methods it waits for a license still being confirmed.

getStreamSource(): Promise<HistogramStreamSource | undefined>

Return type: Promise<HistogramStreamSource | undefined>. Call the method after element registration and await its Promise result.

• HistogramStreamSource

  Type definition

getEngineStatus

The requested engine, the engine that draws and why . A Chart Pro license decision names chart.webgpu and its state; renderer causes (not in this build, no WebGPU, a failed GPU) stay apart.

getEngineStatus(): Promise<ChartEngineStatus>

Return type: Promise<ChartEngineStatus>. Call the method after element registration and await its Promise result.

• ChartEngineStatus

  Type definition

setAnimation

An asynchronous method. Check the argument and return types below.

setAnimation(options: { duration?: number; easing?: HistogramEasing; enabled?: boolean; type?: HistogramAnimationType }): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

• HistogramEasing

  Type definition

• HistogramAnimationType

  Type definition

pauseAnimation

Pause the current animation.

pauseAnimation(): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

resumeAnimation

Resume a paused animation.

resumeAnimation(): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

replayAnimation

Replay the initial sweep from min → value(s). No-op when animation is off / reduced.

replayAnimation(): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

hitTest

The box under a host-local CSS point (the nearest slot, within half a pitch), or null.

hitTest(cssX: number, cssY: number): Promise<HistogramPointEventDetail | null>

Return type: Promise<HistogramPointEventDetail | null>. Call the method after element registration and await its Promise result.

• HistogramPointEventDetail

  Type definition

showTooltipAtPoint

Open the tooltip for a dot programmatically. pointIndex is the category (row) index; the optional seriesIndex selects a group within that row (defaults to the first visible group's dot in the row). Returns the emitted tooltip detail, or null when no dot resolves / the tooltip is disabled.

showTooltipAtPoint(binIndex: number): Promise<CartesianTooltipEventDetail | null>

Return type: Promise<CartesianTooltipEventDetail | null>. Call the method after element registration and await its Promise result.

• CartesianTooltipEventDetail

  Type definition

hideTooltip

Close the currently visible tooltip.

hideTooltip(): Promise<void>

Return type: Promise<void>. Call the method after element registration and await its Promise result.

zoomTo

Zoom to explicit windows: x / y as { min, max } or [min, max] (null clears that orientation); xAxis / yAxis name the axis by id or slot index.

zoomTo(request: CartesianZoomRequest): Promise<CartesianZoomChangeEventDetail | null>

Return type: Promise<CartesianZoomChangeEventDetail | null>. Call the method after element registration and await its Promise result.

• CartesianZoomChangeEventDetail

  Type definition

• CartesianZoomRequest

  Type definition

zoomBy

Scale the current windows by factor (< 1 zooms in) around anchorFraction (0..1, default centre).

zoomBy(factor: number, anchorFraction?: number): Promise<CartesianZoomChangeEventDetail | null>

Return type: Promise<CartesianZoomChangeEventDetail | null>. Call the method after element registration and await its Promise result.

• CartesianZoomChangeEventDetail

  Type definition

panBy

Slide the zoomed windows by data units ({ x?, y? }); a no-op at the full extent.

panBy(delta: { x?: number; y?: number }): Promise<CartesianZoomChangeEventDetail | null>

Return type: Promise<CartesianZoomChangeEventDetail | null>. Call the method after element registration and await its Promise result.

• CartesianZoomChangeEventDetail

  Type definition

resetZoom

Reset the zoomed or panned range to the original data range.

resetZoom(): Promise<CartesianZoomChangeEventDetail | null>

Return type: Promise<CartesianZoomChangeEventDetail | null>. Call the method after element registration and await its Promise result.

• CartesianZoomChangeEventDetail

  Type definition

getZoom

Read the current zoom range. Check the return type's nullability and the range for each axis.

getZoom(): Promise<CartesianZoomState | null>

Return type: Promise<CartesianZoomState | null>. Call the method after element registration and await its Promise result.

• CartesianZoomState

  Type definition

getZoomExtent

The full extent (and key) of the primary — or the named — master axes (null before the first layout).

getZoomExtent(request?: CartesianZoomExtentRequest): Promise<CartesianZoomExtentDetail | null>

Return type: Promise<CartesianZoomExtentDetail | null>. Call the method after element registration and await its Promise result.

• CartesianZoomExtentDetail

  Type definition

• CartesianZoomExtentRequest

  Type definition