sprite_blit — GFX2D sprite op

• 数据种类:rgba × rgba → rgba

• 调用: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 的副本上于整数 (x, y) 处合成 sprite`。

> 以下的详细说明为原文 —— 摘要与标题已翻译。

`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.

参考(示例数据・文献)

• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。

• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。

• 算法的正典(作者・年份)与用途见上面的族使用指南。

可运行的示例(实际调用该算子并已验证的样例)

• gfx2d_scene — py -3.11 examples/gfx2d_scene.py

类型可衔接的下一个算子(可接受 rgba 作为输入)

premultiply · alpha_composite · sprite_transform · sprite_sheet_slice · nine_slice

同类别(sprite)

sprite_synthesize · sprite_transform · sprite_sheet_slice · nine_slice

*Provenance: gfx2d.py — GFX2D 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*

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