mirror of
https://github.com/storytold/craft-anything.git
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Brandon Thomas
f64ae3bf3c
A native, pure-Rust app that shows anyone how a piece of software works, with evidence-backed answers, then helps them rebuild it. It ships a desktop app, a CLI and an MCP server, all driven by one engine. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
61 lines
2.4 KiB
Python
61 lines
2.4 KiB
Python
"""Trace the raven artwork into the app icon's master SVG.
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Needs numpy, Pillow and vtracer (`pip install vtracer`); see README.md for the exact runs.
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usage: python trace.py SOURCE OUT_SVG WORK_PX SPECKLE BLUR
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"""
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import re
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import sys
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import tempfile
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from pathlib import Path
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import numpy as np
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import vtracer
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from PIL import Image, ImageFilter
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INK, PAPER, BLUE = "#101014", "#f2f1ee", "#4e7bfb"
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def trace(mask: np.ndarray, speckle: int, d: Path) -> str:
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"""One colour layer: vtracer's binary trace of `mask`, as path elements."""
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png, svg = d / "mask.png", d / "mask.svg"
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Image.fromarray(np.where(mask, 0, 255).astype(np.uint8)).filter(ImageFilter.MedianFilter(3)).save(png)
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vtracer.convert_image_to_svg_py(
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str(png), str(svg), colormode="binary", mode="spline", filter_speckle=speckle,
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corner_threshold=60, length_threshold=4.0, splice_threshold=45, path_precision=1,
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)
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found = re.findall(r'<path d="([^"]+)"[^>]*transform="translate\(([-\d.]+),([-\d.]+)\)"', svg.read_text())
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return "".join(f'<path transform="translate({x} {y})" d="{p.strip()}"/>' for p, x, y in found)
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def main() -> None:
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src, out, n, speckle, blur = sys.argv[1], Path(sys.argv[2]), int(sys.argv[3]), int(sys.argv[4]), float(sys.argv[5])
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im = Image.open(src).convert("RGB").resize((n, n), Image.LANCZOS)
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if blur:
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im = im.filter(ImageFilter.GaussianBlur(blur))
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a = np.asarray(im).astype(np.int32)
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r, g, b = a[..., 0], a[..., 1], a[..., 2]
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blue = (b - r > 70) & (b > 150)
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dark = 0.299 * r + 0.587 * g + 0.114 * b < 128
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# Only what lies inside the source's rounded tile (21.5 % corner radius).
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rad = 0.215 * n
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yy, xx = np.mgrid[0:n, 0:n] + 0.5
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inside = (xx - np.clip(xx, rad, n - rad)) ** 2 + (yy - np.clip(yy, rad, n - rad)) ** 2 <= (rad - 2) ** 2
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with tempfile.TemporaryDirectory() as d:
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bird = trace(inside & ~blue, speckle, Path(d))
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ink = trace(inside & ~blue & dark, speckle, Path(d))
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out.write_text(
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'<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">'
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'<clipPath id="t"><rect width="512" height="512" rx="110"/></clipPath>'
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f'<rect width="512" height="512" rx="110" fill="{BLUE}"/>'
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f'<g clip-path="url(#t)"><g transform="scale({512 / n:g})" fill-rule="evenodd">'
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f'<g fill="{PAPER}">{bird}</g><g fill="{INK}">{ink}</g></g></g></svg>\n',
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encoding="utf-8",
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)
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if __name__ == "__main__":
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main()
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