Pareto

values

Occurrence counts for each category.

• ParetoChartValues

  Type definition

categories

Cause names at the same indices as the values.

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

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.

color

Bar fill colour. Accepts a single CSS colour, an array, or a comma-separated string (the first colour is used).

lineColor

Cumulative-line colour.

lineWidth

Cumulative-line width in CSS px.

marker

Endpoint marker symbol on the cumulative line. none hides markers.

markerSize

Marker radius in CSS px.

baseline

Value the bars grow from. Default 0.

barPadding

Gap between adjacent bars as a fraction of the band width (0..1).

sortDescending

Sort categories by value, largest first (classic Pareto ordering).

referenceValue

80/20 reference percentage drawn as a horizontal line on the cumulative axis.

showReference

Show the reference line.

referenceColor

Reference-line colour.

valueAxisLabel

Left value-axis label.

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

cumulativeAxisLabel

Right cumulative-axis label.

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

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

xLabelMode

How crowded category-axis labels are decluttered. Default 'auto' thins labels horizontally.

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

xLabelRotation

Explicit category-label rotation in degrees (respected as a floor).

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

xLabelMaxCount

Hard cap on the number of category labels shown.

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

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.

• CartesianYAxisInput

  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. true/'auto' enables a snapping vertical line; pass an object to set mode/snap/color/dash.

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

• CartesianCrosshairInput

  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: ParetoChartPointerEventDetail) => string.

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

• ParetoChartPointerEventDetail

  Type definition

tooltip

Rich tooltip configuration (matches the line/area/column/lollipop family). Pass an object to set show/mode/side/format/html/style/connector/draggable/interactive/trigger/openMode. The legacy tooltipEnabled/tooltipFormat props remain the fallback when tooltip is omitted.

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.

legend

Whether to show a legend for series or items.

legendPosition

Where the legend is positioned.

• ParetoChartLegendPosition

  Type definition

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'.

• ParetoChartEasing

  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.

• ParetoChartAnimationType

  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.

• ParetoChartStreamSource

  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.

• ParetoChartEngineMode

  Type definition

proThreshold

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

unavailable

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

• ParetoChartUnavailableBehaviour

  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<ParetoChartRenderResult & { tier: ParetoChartEngineTier }>.

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

• ParetoChartRenderResult

  Type definition

• ParetoChartEngineTier

  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<ParetoChartPointerEventDetail>.

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

• ParetoChartPointerEventDetail

  Type definition

pointHover

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

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

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

• ParetoChartPointerEventDetail

  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

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

pointContextMenu

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

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

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

• ChartPointContextMenuEventDetail

  Type definition

• ParetoChartPointerEventDetail

  Type definition

legendItemClick

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

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

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

• ParetoChartLegendItemEventDetail

  Type definition

seriesToggled

CustomEvent.detail type: { index: number; seriesId: string; disabled: boolean }. Event names are case-sensitive.

Event name: seriesToggled. Names are case-sensitive. Read the payload from detail on CustomEvent<{ index: number; seriesId: string; disabled: boolean }>.

chart.addEventListener('seriesToggled', event => {
  console.log(event.detail); // { index: number; seriesId: string; disabled: boolean }
});

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
});

redraw

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

redraw(): Promise<ParetoChartRenderResult>

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

• ParetoChartRenderResult

  Type definition

getActiveTier

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

getActiveTier(): Promise<ParetoChartEngineTier>

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

• ParetoChartEngineTier

  Type definition

setData

Replace the bar set.

setData(values: ParetoChartValues): Promise<void>

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

• ParetoChartValues

  Type definition

appendPoint

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

appendPoint(datum: ParetoBarDatum | number): Promise<void>

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

• ParetoBarDatum

  Type definition

appendBatch

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

appendBatch(data: ReadonlyArray<ParetoBarDatum | number>): Promise<void>

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

• ParetoBarDatum

  Type definition

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(data: ReadonlyArray<ParetoBarDatum | number>): Promise<void>

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

• ParetoBarDatum

  Type definition

getStreamSource

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

getStreamSource(): Promise<ParetoChartStreamSource | undefined>

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

• ParetoChartStreamSource

  Type definition

setAnimation

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

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

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

• ParetoChartEasing

  Type definition

• ParetoChartAnimationType

  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<ParetoChartPointerEventDetail | null>

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

• ParetoChartPointerEventDetail

  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(index: 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.

getEngineStatus

Requested engine vs what runs, and why (CHART-ADD-08): always Standard (this type has no WebGPU renderer); read without side effects, never consults the license.

getEngineStatus(): Promise<ChartEngineStatus>

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

• ChartEngineStatus

  Type definition