sprite_blit — GFX2D sprite op

• 資料種類:rgba × rgba → rgba

• 呼叫:import gfx2d; gfx2d.sprite_blit(dst, sprite, x=0, y=0, anchor='top_left', flip_x=False, flip_y=False, opacity=1.0)(或 opsgfx2d.get("sprite_blit"))

用法

在 `dst 的副本上於整數 (x, y) 處合成 sprite`。

> 以下的詳細說明為原文 —— 摘要與標題已翻譯。

`x is the column and y the row of the sprite's anchor` point;

`anchor is one of "top_left", "top_right", "bottom_left"`,

`"bottom_right", "center"`.

**Out-of-bounds behaviour is to clip silently, and that is a decision, not

an oversight.** Half a sprite hanging off the edge of the screen is the

normal case in this family, and raising there would make the common path the

exceptional one. A sprite entirely outside returns `dst` unchanged. The

contrast with :func:viewport — which raises for the same situation — is

deliberate: a camera asking for pixels that do not exist is a bug in the

caller's arithmetic, a sprite walking off screen is not.

`x/y` must be integers. Sub-pixel placement changes the picture

(it resamples), so it is :func:sprite_transform's job and not a silent

rounding here.

參考(範例資料・文獻)

• 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。

可執行的範例(實際呼叫該運算子並已驗證的樣例)

• gfx2d_scene — py -3.11 examples/gfx2d_scene.py

型別可銜接的下一個運算子(可接受 rgba 作為輸入)

premultiply · alpha_composite · sprite_transform · sprite_sheet_slice · nine_slice

同類別(sprite)

sprite_synthesize · sprite_transform · sprite_sheet_slice · nine_slice

*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.