e57_write — FILEIO `e57` op

• Data kinds: table → any

• Call: import fullseye as fs; fs.ledger.e57_write(table) (to call the implementation directly, import fileio; fileio.e57_write(table); from the registry, opsfileio.get("e57_write"))

• GPU: none (CPU reference implementation only)

Usage

Write a point-cloud table with coordinates, intensity, color, and pose as ASTM E57 bytes.

> The detailed description below is the original text — the summary and the headings are translated.

pye57 は optional。未導入なら導入コマンドを含む ImportError で閉じる。

精度: 座標(cartesianX/Y/Z)と強度は E57 の single(float32) で書かれる(pye57 の write_scan_raw が single 固定)。float64 の点は float32 の精度で往復する —— 原点から 35 万 m の UTM 座標なら誤差は数 cm。大きい座標は原点の近くへ平行移動し、その量を pose['translation'](double で書かれ正確に往復する)に入れること。色は 8 bit に丸め、pose['rotation'] は単位四元数に正規化して書く。

呼び出し例: payload = e57_write({'points': points, 'pose': pose})。

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)

• fileio_roundtrip — py -3.11 examples/fileio_roundtrip.py

Ops the type connects to (they accept `any` as input)

table_write_csv · table_read_csv · mesh_write_ply · mesh_read_ply · mesh_write_stl · mesh_read_stl · mesh_write_obj · mesh_read_obj

Same category (`e57`)

e57_read

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

e57_write — FILEIO e57 op