graph_layout_spectral — CONNGRAPH view op

• Data kinds: conn_graph → points

• Call: import fullseye as fs; fs.ledger.graph_layout_spectral(W: 'Any', dim: 'int' = 2, seed: 'int' = 0) -> 'np.ndarray' (to call the implementation directly, import conngraph; conngraph.graph_layout_spectral(W: 'Any', dim: 'int' = 2, seed: 'int' = 0) -> 'np.ndarray'; from the registry, opsconngraph.get("graph_layout_spectral"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

スペクトル配置: 向きを畳んだ Laplacian の Fiedler ベクトル(第 2..dim+1 固有ベクトル)を座標にした点群 (n, 3)、各軸 [0, 1]。

`dim` は 2 か 3(2 なら z = 0)。連結成分ごとに配置してから格子に並べる —— 非連結の

グラフでは零固有空間が縮退して Fiedler ベクトルが成分を分けるとは限らないので、

成分は明示的に分ける(成分内は箱の 0.3 倍、成分間は 1 の間隔)。

Detailed usage guide

• conngraph family guide

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• (none yet)

Ops the type connects to (they accept points as input)

graph_edges_as_lines · graph_activity_spread · points_activity_video

Same category (view)

graph_edges_as_lines · graph_adjacency_image

*Provenance: conngraph.py — CONNGRAPH operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.