sprite opなし → rgba(引数だけで決まる op —— 画像やデータの入力を取らない)import fullseye as fs; fs.ledger.sprite_synthesize(kind='disc', size=32, color='emphasis', thickness=0.25, scheme='okabe_ito') (実装を直接呼ぶなら import gfx2d; gfx2d.sprite_synthesize(kind='disc', size=32, color='emphasis', thickness=0.25, scheme='okabe_ito')、台帳から引くなら opsgfx2d.get("sprite_synthesize"))A deterministic anti-aliased test sprite, rgba (size, size, 4).
The entry point of the sprite sort: it needs no asset on disk, and because the silhouette comes from an implicit equation the alpha channel is the ground-truth coverage mask — which is the whole reason this family belongs in a vision library.
kind is "disc", "ring", "box", "diamond" or "star".
color is a :mod:palette role name (default) or an explicit 3/4-tuple.
thickness is the ring’s wall as a fraction of the radius.
Coverage is computed by 4x4 regular supersampling, so alpha takes values on
the exact lattice k/16.
py -3.11 examples/gfx2d_scene.pyrgba を入力に取れる)premultiply · alpha_composite · sprite_blit · sprite_transform · sprite_sheet_slice · nine_slice
sprite)sprite_blit · sprite_transform · sprite_sheet_slice · 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.