Network Graph
Who is connected to whom, and who the network converges on.
Preview
Rendered from the story the storybook (a11y) CI gate runs axe against — the preview can't show something that hasn't been verified.
Install
Two equivalent paths — the URL works in any shadcn-CLI setup; the alias works once you've registered @interlace in your components.json.
npx shadcn@latest add https://ds.interlace.tools/r/network-graph.jsonnpx shadcn@latest add @interlace/network-graphBehavior
What this component does — the keyboard path, the measured colour, the text equivalent and the states it can be in. Every figure below is read out of the test or the source that enforces it by scripts/build-behavior-map.mjs, so nothing here can outlive the gate that keeps it true.
3 steps, 3 key presses — replayed on every PR by the play function of KeyboardSelection. Axe cannot press a key, so this — not the a11y scan — is what proves the component is operable without a mouse.
- 1the graph takes focus
- 2ArrowRight then Enter selects the second-ranked nodeArrowRightEnter
- 3Escape clears the selectionEscape
9 states, one closed union — not a boolean per condition. Partial is a state, not an absence: a spinner that hides progress, or a missing prior rendered as 0, is the failure this model exists to make impossible.
| State | Reads as | Role | Encoding |
|---|---|---|---|
| loading | loading | Stands instead of the body | muted |
| error | ! error | Stands instead of the body | danger |
| not-applicable | n/a | Stands instead of the body | hatchedrecede |
| not-counted | not counted | Stands instead of the body | hatchedmuted |
| empty | — none | Stands instead of the body | muted |
| partial | ≥ partial | Stands next to the body and changes how to read it | dashedmuted |
| truncated | ⋯ truncated | Stands next to the body and changes how to read it | dashedmuted |
| first-measurement | · first measurement | Stands next to the body and changes how to read it | dashedaccent |
| idle | — | The absence of absence | muted |
Hatched and dashed are the two absences drawn apart on purpose: not-counted means no measurement was taken and is never a zero; truncated means the total is unknown and must never be used as a denominator. Each state also carries a spoken announcement — transitions, never ticks.
Measured contrast
packages/ui/__tests__/theme-contract-lock.test.ts ↗Every semantic colour pair this component's own source uses, measured against the shipped hexes in all 4 theme × scheme combinations. The tightest is muted-foreground on muted at 7.34:1 (harbor · light), against a floor of 4.5:1.
| Pair | interlacelight | interlacedark | harborlight | harbordark | Floor |
|---|---|---|---|---|---|
| muted-foreground on mutedcopy on a muted surface | 8.81:1 | 10.48:1 | 7.34:1 | 8.64:1 | 4.5:1SC 1.4.3 |
| destructive on backgrounddestructive tint on the page surface | 8.31:1 | 10.43:1 | 7.60:1 | 10.03:1 | 3.0:1SC 1.4.11 |
| muted-foreground on backgroundsecondary copy | 9.41:1 | 11.32:1 | 7.82:1 | 9.52:1 | 4.5:1SC 1.4.3 |
| destructive on carddestructive tint inside a card | 8.31:1 | 9.66:1 | 8.02:1 | 9.09:1 | 3.0:1SC 1.4.11 |
| muted-foreground on cardsecondary copy in a card | 9.41:1 | 10.48:1 | 8.25:1 | 8.64:1 | 4.5:1SC 1.4.3 |
| ring on backgroundfocus ring (SC 2.4.13) | 8.80:1 | 11.79:1 | 8.39:1 | 10.03:1 | 3.0:1SC 1.4.11 |
| primary on backgroundprimary tint on the page surface | 8.80:1 | 11.79:1 | 8.39:1 | 10.03:1 | 3.0:1SC 1.4.11 |
| ring on cardfocus ring inside a card | 8.80:1 | 10.92:1 | 8.86:1 | 9.10:1 | 3.0:1SC 1.4.11 |
| primary-foreground on primarycopy on a primary face | 8.80:1 | 11.79:1 | 8.86:1 | 10.03:1 | 4.5:1SC 1.4.3 |
| primary on cardprimary tint inside a card | 8.80:1 | 10.92:1 | 8.86:1 | 9.10:1 | 3.0:1SC 1.4.11 |
Text pairs are held to 4.5:1 (WCAG 2.2 SC 1.4.3); borders, rings and chart axes to 3:1 (SC 1.4.11 non-text). Bold is the worst cell in the row — the one a brand fork has to keep an eye on.
Text equivalent
packages/ui/src/charts/network-graph.tsx ↗A chart's alt text is not a sentence about the chart — the equivalent of the data is the data. This is what a screen reader gets, read out of the source the install writes into your tree.
Ships an sr-only <table> carrying the same rows the graphic draws.
Runtime contract
packages/ui/vitest.config.ts ↗Where it renders, how narrow it survives, and whether its lines are inside the coverage gate — three answers a consumer needs before the paste, not after the bug.
- Render boundary
'use client'Hydrates. It brings JavaScript to any route that imports it — put the boundary here, not at the page.
- Minimum viewport
MIN_VIEWPORT = 320Declared, not assumed. Below 320 CSS px the preflight contract draws a dev-mode outline — how to switch it on.
- Coverage gate
100% × 4Inside the v8 gate: lines 100, statements 100, functions 100, branches 100. A threshold under 100 only records how much you stopped caring, so there isn't one.
History
This component is at v1.1.2, first shipped in @interlace/ui 1.0.0. The version is stamped as a banner into the file the install writes, so the copy in your tree says which one you have — compare it with the number above before deciding whether to re-run the install.
@interlace/ui 1.1.01 entry
- Addedminor
New
Distributionchart — a quantity spread over a fixed set of named bins, read against a reference distribution. It is a new component rather than an extension ofTimeSeriesbecause three of that component's properties are chronological and cannot be parameterised out: its axis keys are sorted (['Thu','Fri','Sat']sorts into a week that does not exist), a line asserts the metric passed through every value between two samples when between two hourly aggregates there is nothing to pass through, anddelta()first-to-last is arithmetic performed on a circle. An unmeasured bin **hatches**. Everywhere else anullcan simply be dropped, but for bars a height of zero and a bar never drawn are the same picture — this isnull ≠ zeroat its hardest case.bin.noteprints a second axis reading under the first, replacing the timezone toggle a caller would otherwise build; a toggle hides half the truth and is missing from every screenshot. Also:errorstates on every chart that fetches —TimeSeries,Sparkline,MetricTable,NetworkGraph,Distribution— resolved throughresolveDataStateso the precedence is the array indata-state-modelrather than five hand-rolled ladders. In a dashboard "the fetch failed" and "there is no data" are different statements.DeltaandSeriesTableget none: neither has a fetch lifecycle.StatItemgainstone, carried by three signals rather than a hue alone — the rail, the value colour, and ansr-onlyjudgement.
@interlace/ui 1.0.01 entry
- Addedminor
The visualization layer ships: a token-driven chart set built on the
VISUALIZATION_PHILOSOPHYrow-first doctrine —MetricTableas the centrepiece,TimeSeriesas the thing a row is promoted into, plus a network graph, sparklines and deltas. Every chart carries the DS-wideloadingskeleton opt-in.
Import
9 named exports — pull the parts you need.
import { GOLDEN_ANGLE, MIN_VIEWPORT, NetworkGraph, concentricLayout, describeGraph, edgesWithin, neighborsOf, rankNodes, topNodes } from '@/components/ui/charts/network-graph';API reference
Parsed from the type declarations in the source — the same file the install writes into your tree, so this table can't drift from the component you get.
NetworkGraphProps
Also accepts every <div> attribute.
| Prop | Type | Description |
|---|---|---|
| nodes* | readonly GraphNode[] | — |
| edges* | readonly GraphEdge[] | — |
| caption | string | Caption / accessible summary prefix. |
| selected | string | null | — |
| onSelect | (id: string | null) => void | — |
| limit | number | How many of the heaviest nodes to draw. Beyond ~200 the picture stops reading. |
| limitOptions | readonly number[] | Offer the reader other display caps. Pass `[]` to hide the control. |
| renderDetail | (node: GraphNode) => React.ReactNode | App-owned detail for the selected node. Omit to render no side panel. |
| loading | boolean | Render a `<Skeleton variant="chart" />` placeholder. |
| error | unknown | The fetch failed. "No connections observed yet" is a statement about the NETWORK — it says the reader has not built one. A failed request says nothing about the network at all, and letting the empty copy stand in for it accuses the reader of an absence that may not exist. |
| announce | AnnouncementOptions | Context for the absence sentences — noun, coverage, reason. |
Skeleton
Pass loading and the component renders a shape-matched <Skeleton /> in its own place — same box, so nothing reflows when the data lands. Below is the same story with loading={true}.
<GOLDEN_ANGLE loading={isPending} />Accessibility
Every story for this component is rendered headlessly and checked with axe-core (wcag2aa, wcag22aa, best-practice, ACT) on every PR. That gate has no continue-on-error, so what ships has zero known violations.
What follows is what static analysis can see. Axe cannot press a key and never sees an overlay open, so the operable-without-a-mouse claim lives in Behavior instead, where the keyboard path is replayed step by step.
- Focus + keyboard behaviour
- Native element semantics — no interaction layer to get wrong.
- Focus ring (WCAG 2.2 SC 2.4.13)
- Inherited from the preflight focus contract shipped in @interlace/theme.
- Reduced motion
- No animation to gate.
- ARIA in the source
role="alert"role="img"aria-labelaria-pressed
Examples
7 more states from the same story file.
R-rule compliance
Every primitive in @interlace/ui models to the portable 26-rule floor enforced by the componentApi ESLint preset. The cells below pin exactly where each rule applies in this file.
| Rule | Concept | Where |
|---|---|---|
| R6 | data-slot on every part | `data-slot="network-graph" / "-plot" / "-detail"` |
| R7 | className merged + ...rest | `cn(...)` + `{...props}` |
| R8 | No `isXxx` | `selected`, `limit` |
| R11 | One variable per part | plot owns layout; detail owns the app's meaning |
| R13 | Ecosystem first | no graph library — layout is 20 lines of trigonometry |
| R14 | Declares min viewport | `data-min-viewport={String(MIN_VIEWPORT)}` |
| R18 | Tailwind only | zero inline `style` |
| R19 | Tokens only | `fill-viz-node`, `stroke-viz-edge`, `--viz-*` family |
| R20 | AA contrast | active edge/node ≥9:1; ambient edge documented decorative |
| R23 | Absence is a vocabulary | `loading` / `error` / no-nodes are three different panels |
| R25 | Client component | selection state + key handlers |
| R26 | A11y | `role="img"` + label + roving focus + node table |
Minimum viewport
This primitive declares MIN_VIEWPORT = 320 CSS px (DESIGN_PRINCIPLES #14). When mounted in a container narrower than this, the preflight contract draws a dev-mode outline so the regression is visible during local development.
<body data-interlace-dev>...</body>
Add the data-interlace-dev attribute to the body in development builds only — preflight then outlines any primitive whose container is below its declared data-min-viewport.
Dependencies
- Base UI primitive
- Native / no Base UI dependency
- Lucide icons
- none
- NPM dependencies
- none
- Registry dependencies
Source
The full implementation — components/ui/charts/network-graph.tsx once installed.
'use client';
import * as React from 'react';
// @interlace/network-graph v1.1.2 — Interlace design system.
// Docs, props and live preview: https://ds.interlace.tools/c/network-graph
// What changed since: https://ds.interlace.tools/c/network-graph#history
// Generated banner — keep it, the upgrade diff reads this version.
/**
* @interlace/ui — NetworkGraph
*
* Who is connected to whom, and who the network converges on.
*
* ## Position means something
*
* Radius is rank by connection count: the centre is whoever the network
* converges on, the rim is the long tail. The same input always produces the
* same picture, which is the property that makes today's graph comparable
* against yesterday's — and the property a force simulation destroys. See
…374 more lines…Registry JSON
The raw registry record — what the shadcn CLI fetches.