Force-directed graph · kimi-k3

Let me build the index.html with D3 force-directed graph. Check d3.min.js exists first.

Write index.html with all requirements.

The graph renders. It's a bit clustered/overlapping in the center, but within view. I could increase charge strength and link distance to spread clusters. The rings aren't visually obvious because hub links pull them together. Let me improve the layout: add a cluster-positioning force or weaker hub link. Simpler: increase charge to -200 and link distance 60, plus hub links distance 200 strength 0.1. That would separate clusters nicely.

Let me update the link force: per-link distance — hub links (connecting different clusters) get distance 150, strength 0.2; cluster ring links distance 55, strength 0.9. Also add forceX/forceY toward cluster quadrant centers for nicer separation.

Also update the resize handler — anchors are computed once at load; on resize they should update. Minor; I'll update resize handler to recompute anchors.

Clusters are now visible (red, blue, green, orange), rings visible. Layout is still mid-simulation (frame 1). Good enough. Now test interactions: drag a node, hover highlight, pan/zoom, reset view.

Let me drag node 0 (at ~559,349) and check links follow. Then hover a node for highlight. Then drag background to pan, scroll to zoom, then Reset view.

Now the simulation has settled and the layout is beautiful: four rings clearly visible, hub ring connecting 0, 10, 20, 30. The drag moved node 0 to (434,208) — actually node 0 appears at ~(434,208), dragged from its ring position and its links follow (links to 1, 9, 10 visible). The camera stayed. 

Now test hover highlight: hover node 20 at (434,393). Then test pan by dragging background, zoom with scroll, then Reset view.

Hover on node 20 (well, a mouseover at that position triggered by the click/hover) — the highlight is visible: node 20 is highlighted, its links to 29, 21, 10, and 30 are yellow, and the other clusters are NOT dimmed though. Hmm — looking at the image: red and blue clusters don't look dimmed. The dim class sets opacity 0.15, but the red/blue nodes look full opacity. Wait — the hub links 20–10 and 20–30 are highlighted yellow, 20–29 and 20–21 links are yellow. But dimming... Actually maybe the screenshot was taken at mouseover but the "dim" opacity transition... Look closely: red nodes look normal brightness. Hmm.

Wait — `.node.dim { opacity: 0.15; }` and `.node { transition: opacity 0.15s; }`. That should dim. In the screenshot the other clusters appear fairly bright, but red cluster maybe slightly dimmed? Hard to tell — red at 4,3,2 look full saturation. Let me check: the mouseover may have fired on the <g class="node">, but the click tool moved the mouse there and a click also occurred which may have triggered drag start/end... The highlight classes are applied since links are yellow. But dim might be partially applied.

Actually look again: non-neighbor nodes — 29, 21, 10, 30 should be full; everything else dimmed to 0.15. In the image, nodes 28, 22, 23 etc. (green cluster non-neighbors) look fairly dim? 28 at (351,458) looks bright green though. Hmm, node 22, 23, 25, 26, 24, 27, 28 — hard to say.

Wait, maybe the transition was mid-way at screenshot (0.15s). Or the mouseover happened, then mouseout didn't fire. The screenshot may have been captured right at mouseover before transition. But links show full yellow highlight already... transitions also 0.15s on stroke. The screenshot may be after transition.

Actually looking carefully at the green cluster: nodes 22, 23, 24, 25, 26, 27, 28 do look dimmer (less saturated, semi-transparent against dark background). And red cluster nodes 2,3,4,5,6,7,8,9 look... reasonably bright red. Hmm, but they should be dimmed too. Opacity 0.15 on red over dark background would look very dark. They look bright.

Wait — maybe mouseover was on node 20's group, and classed("dim", n => !keep.has(n.id)) — keep includes 20, 29, 21, 10, 30. Red cluster should be dim. The red cluster looks pretty undimmed in the image... but node 0's circle: at (434,208) it looks medium red. Compare node 5 at (293,123): looks bright red. 

Hmm, let me actually verify by moving mouse over a node and checking DOM classes via inspect.

The hover highlight works perfectly — node 20 highlighted with white ring, neighbors 21, 29, 10, 30 bright, all other nodes and links dimmed. Now test pan: drag background from empty area (900,600) to (700,500). Then zoom via scroll. Then click Reset view.

Pan worked — graph shifted up-left (also the hover dim was restored, good — mouseout works). Now zoom in with scroll, then Reset view.

Zoom works (zoomed in on orange cluster). Now click Reset view at (390,34).

The screenshot looks identical to before the reset — the transition is 500ms and the screenshot may have been taken before it completed, or the click didn't register. Frame is +0ms — captured immediately after click, so the 500ms transition hasn't progressed. Let me take another screenshot after a moment.

Reset view worked — the camera returned to identity transform; the whole graph is back in initial framing (zoom 1, no pan). Graph data preserved (node positions settled from the simulation, same graph). All verified:

- 40 nodes, 4 clusters of 10, rings + hub ring 0-10-20-30 ✓
- Labels with IDs ✓, initial graph in view ✓
- Drag node: node 0 moved, links followed, camera stayed ✓
- Background drag pans ✓, wheel zooms ✓
- Hover highlights node + neighbors + links, dims rest; mouseout restores ✓
- Reset view restores initial framing without replacing data ✓

Done. Report.