particle op• 資料種類:無 → table(僅由參數決定的運算子 —— 不接受影像或資料輸入)
• 呼叫:import gfx2d; gfx2d.particle_emit(count, seed, origin=(0.0, 0.0), spread=0.0, speed=(10.0, 40.0), direction=(0.0, 360.0), life=(0.5, 1.5), size=(1.0, 3.0), color='emphasis', scheme='okabe_ito')(或 opsgfx2d.get("particle_emit"))
從 `origin 發射 count 個粒子,由 seed` 決定性生成。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
Returns the particle state as a dict of arrays::
{"pos": (N,2) as (x, y), "vel": (N,2) px/s, "age": (N,), "life": (N,),
"size": (N,) radius in px, "color": (N,4) straight rgba}
Ranges are `(low, high) pairs sampled uniformly; direction` is in
degrees measured clockwise from the +x axis (again because the row axis
points down). `spread` is the radius of the uniform disc the start
positions are jittered over.
All randomness comes from `numpy.random.default_rng(seed)` — the same seed
gives the same bytes, which the test suite pins with a SHA-256.
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
• 演算法的正典(作者・年份)與用途見上面的族使用指南。
• gfx2d_scene — py -3.11 examples/gfx2d_scene.py
table 作為輸入)layer_stack · particle_step · particle_render
particle)particle_step · particle_render
*Provenance: gfx2d.py — GFX2D 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.