dotCooCoo 1d41b403e1 Effects: Outline Object on an image's fill or stroke follows its opaque pixels ...

An image's own fill or stroke with Outline Object now follows the outline of
the image's pixels that are at least 50% opaque, traced from the alpha and
fitted with curves, instead of the image's frame. An image without
transparency, one whose pixels can't be read, one of more than 64 megapixels
or whose decoded pixels take more than 256 MB, and one whose outline would
need more than 100,000 anchor points keep the frame. An image with no pixel
at least half opaque gives nothing to paint. Images of more than 4 megapixels
are traced from their alpha averaged down to 4 megapixels, and an averaged
pixel that covers a pixel at least half opaque stays at least half opaque, so
thin opaque lines stay in the outline. Each outline is traced once for its
pixels, kept for the next redraw while those pixels are loaded, and dropped
after them; a second thread that needs the same outline waits for the trace.

- vectorcraft-trace: `decode_alpha` reads an image's alpha, and
  `opaque_outline` traces it as Black and White mode at threshold 128.
- vectorcraft-effects: the reshaped image art uses it for rows whose first
  effect is Outline Object; Convert to Shape rows keep the frame.
- Docs: docs/mcp.md, the Outline Object params text and an evidence line in
  docs/target-app-parity.md. docs/mcp.md also says that Use Preview Bounds
  takes in the shapes an image's fills and strokes paint.

2026-11-12 04:58:03 -08:00

..

src

Effects: Outline Object on an image's fill or stroke follows its opaque pixels

2026-11-12 04:58:03 -08:00

tests

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Cargo.toml

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