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Chord diagram

How much groups send to and receive from each other.

Open in playground
Use when
Two-way relationships, such as requests between teams
Avoid when
More than 10 groups

Try it

27

Chord diagram

Requests between teams
Chord diagramChord diagram. 5 groups: Design 144, Engineering 162, Product 175, Marketing 107, Data 58.DesignEngineeringProductMarketingData
Chord diagram data
Design144 (22%)
Engineering162 (25%)
Product175 (27%)
Marketing107 (17%)
Data58 (9%)
Design ↔ EngineeringDesign→Engineering 42, Engineering→Design 28
Product ↔ DesignProduct→Design 36, Design→Product 0
Marketing ↔ DesignMarketing→Design 26, Design→Marketing 12
Product ↔ EngineeringProduct→Engineering 54, Engineering→Product 22
Engineering ↔ DataEngineering→Data 16, Data→Engineering 0
Marketing ↔ ProductMarketing→Product 31, Product→Marketing 14
Data ↔ ProductData→Product 18, Product→Data 0
Data ↔ MarketingData→Marketing 24, Marketing→Data 0
Product is the hubAdvanced

Hover over the chart, or Tab in and use the arrow keys to move between items. The numbers are sample data.

Variants

Named looks for this chart. Each one is the example above with a few options or fields changed. The CLI (ztd-charts example chord --variant <id>) and the MCP server know the same names.

Wide gaps

Requests between teams
Sample data

Code

ChordChart.tsx
import { ChartCard, ChordChart } from "ztd-charts";

const data = [
  {"from":"Design","to":"Engineering","value":42},
  {"from":"Engineering","to":"Design","value":28},
  {"from":"Product","to":"Design","value":36},
  {"from":"Product","to":"Engineering","value":54},
  {"from":"Engineering","to":"Product","value":22},
  {"from":"Marketing","to":"Product","value":31},
  // … 6 more rows
];

export function Example() {
  return (
    <ChartCard number="27" title="Chord diagram" subtitle="Requests between teams" takeaway="Product is the hub" level="advanced" replay>
      <ChordChart
        data={data}
        source="from"
        target="to"
        value="value"
        highlight="Product"
      />
    </ChartCard>
  );
}

Props

<ChordChart> takes these props. Rows marked Common work the same on every chart.

26 props

Prop
dataRequiredAn array of objects. Pass CSV, REST or database rows as they areobject[]
sourceRequiredSending groupstring | (d, i) => string
targetRequiredReceiving groupstring | (d, i) => string
valueRequiredValue fieldstring | (d, i) => number
padAngleGap between groups (radians)numberDefault 0.05
heightCommonHeight in px. Without it, each chart picks a default that fits its widthnumber
widthCommonFixed width in px. Without it, the chart fits its parentnumber
highlightCommonItem to highlight. An index, a name, an array, or "max" | "min" | "first" | "last" | "none"number | string | (number|string)[] | "max" …
formatCommonValue format. "number" | "integer" | "percent" (values are already percents: 42 → "42%") | "ratio" (0.42 → "42%") | "compact" | "currency" (KRW for Korean locales, otherwise USD; for another currency pass Intl options with currency) | "decimal" or Intl.NumberFormat options"number" | "percent" | "compact" | …
unitCommonUnit appended to values. For example "%" or "ms"string
localeCommonLocale for numbers, dates and the text a chart writes itself (tooltips, screen reader sentences). "ko" or "ko-*" switches to Korean. Falls back to the ThemeProvider localestringDefault "en-US"
animateCommonEntry and update animationbooleanDefault true
durationCommonAnimation length (ms)number
easingCommonMotion curve"spring" | "easeOut" | "easeInOut" | "linear"Default "spring"
staggerCommonDelay between items as they enter (ms)number
reducedMotionCommon"auto" follows the OS setting. true always turns motion offanyDefault "auto"
animateOnViewCommonPlay when the chart scrolls into viewbooleanDefault true
showLabelsCommonLabels drawn on the chart (values and names)booleanDefault true
tooltipCommonShow tooltips. { template: "{label} · {value} · owner {owner}" } writes them: {label}, {value}, {series} or any other column of the row. \n starts a new line, and a line with an empty value is left outtooltipDefault true
syncIdCommonCharts with the same syncId show the hovered x together (line, area, bar, candlestick). <ChartGrid sync> sets one for every chart inside itstring
ariaLabelCommonName for screen readersstring
descriptionCommonDescription for screen readers. Built from the data when omittedstring
onHoverCommonRuns when hover or keyboard focus moves to another item(e: ChartEvent | null) => void
onClickCommonRuns on click, Enter or Space(e: ChartEvent) => void
replayKeyCommonReplays the entry animation when it changesstring | number
themeCommonChanges theme tokens for this chart onlyPartial<ChartTheme>

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