iqbal/learning-lab-express
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Name a node's neighbours in the graph only when there are few

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Selecting the Knowledge base hub named every document linked to it at
once, hundreds of labels piled on top of each other. Neighbours are now
named only for a node that is not a hub and has at most 12 of them;
the others still light up, and each shows its name on hover.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Iqbal
2026-10-30 13:52:23 +07:00
parent e1c88b291c
commit 012159aae2
1 changed files with 5 additions and 1 deletions
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6
src/pages/Production.tsx
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@@ -176,6 +176,7 @@ function ContentActivity({ made, working, loading }: { made: Material[]; working
// frame, so hovering or selecting (React state) never fights the animation.
const DRIFT = 5
const MAX_PARTICLES = 80
const NAMED_NEIGHBOURS = 12
const ease = (x: number) => 1 - Math.pow(1 - Math.min(1, Math.max(0, x)), 3)
function curve(ax: number, ay: number, bx: number, by: number, bend: number) {
@@ -259,6 +260,9 @@ function KnowledgeGraph({ graph }: { graph: Graph }) {
}
return set
}, [focus, graph])
// Linked nodes are named only when there are few: a hub links to every document or result, and
// naming them all at once piles hundreds of labels on top of each other.
const nameNear = !!neighbours && !graph.nodes[index.get(focus!)!]?.hub && neighbours.size <= NAMED_NEIGHBOURS + 1
const lit = (p: { a: number; b: number }) => neighbours?.has(graph.nodes[p.a].id) && neighbours.has(graph.nodes[p.b].id)
return (
@@ -298,7 +302,7 @@ function KnowledgeGraph({ graph }: { graph: Graph }) {
const r = n.hub ? 9 : 3.2 + Math.min(3, (degree.get(n.id) ?? 0) * 0.7)
return (
<g key={n.id} ref={el => { nodeEls.current[i] = el }}
className={`graph-node c-${n.cluster}${n.hub ? ' hub' : ''}${neighbours && !neighbours.has(n.id) ? ' dim' : ''}${n.id !== focus && neighbours?.has(n.id) ? ' near' : ''}${hover === n.id ? ' hover' : ''}${selected?.id === n.id ? ' sel' : ''}`}
className={`graph-node c-${n.cluster}${n.hub ? ' hub' : ''}${neighbours && !neighbours.has(n.id) ? ' dim' : ''}${nameNear && n.id !== focus && neighbours?.has(n.id) ? ' near' : ''}${hover === n.id ? ' hover' : ''}${selected?.id === n.id ? ' sel' : ''}`}
onMouseEnter={() => setHover(n.id)} onMouseLeave={() => setHover(null)}
onClick={e => { e.stopPropagation(); setSelected(n) }}>
<circle className="hit" r={r + 8} />