sprite_sheet_slice — GFX2D sprite op

• データ種: rgba → sprites

• 呼び出し: import gfx2d; gfx2d.sprite_sheet_slice(sheet, tile_height, tile_width, margin=0, spacing=0, count=None) (または opsgfx2d.get("sprite_sheet_slice"))

使い方

Cut a sprite atlas into a list of equal `rgba` frames, row-major.

`margin is the border around the whole sheet, spacing` the gap between

neighbouring cells — the two numbers that every atlas exporter writes and

that every hand-rolled slicer gets wrong by one.

Returns a `list of (tile_height, tile_width, 4)` arrays. With

`margin=spacing=0 it is the exact inverse of :func:tilemap_render`.

Raises ValueError: a sheet that does not contain a whole number of cells

(a partial cell means the margin/spacing are wrong, and silently dropping it

hides that), a `count` larger than the grid, more than

:data:MAX_SPRITES cells.

参考(サンプルデータ・文献)

• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。

• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。

• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• gfx2d_scene — py -3.11 examples/gfx2d_scene.py

型が繋がる次の op(sprites を入力に取れる)

tilemap_render · parallax_layers

同カテゴリ(sprite)

sprite_synthesize · sprite_blit · sprite_transform · nine_slice

*Provenance: gfx2d.py — GFX2D operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*

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