AgentSkillsCN

trace-to-svg

使用 potrace 或 mkbitmap 将位图图像（PNG/JPG/WebP）转换为清晰的 SVG 路径。可用于将标志或剪影转化为矢量图形，以支持下游 CAD 工作流（例如，使用 create-dxf etch_svg_path 工具），或将参考图像转化为可制造的轮廓线。

SKILL.md
--- frontmatter
name: trace-to-svg
description: Trace bitmap images (PNG/JPG/WebP) into clean SVG paths using potrace/mkbitmap. Use to convert logos/silhouettes into vectors for downstream CAD workflows (e.g., create-dxf etch_svg_path) and for turning reference images into manufacturable outlines.
metadata:
  thinkfleet:
    requires:
      bins: ["potrace", "mkbitmap"]
    install:
      - id: apt
        kind: apt
        package: potrace
        bins: ["potrace", "mkbitmap"]
        label: Install potrace + mkbitmap (apt)
      - id: brew
        kind: brew
        formula: potrace
        bins: ["potrace", "mkbitmap"]
        label: Install potrace + mkbitmap (brew)

trace-to-svg

Convert a bitmap into a vector SVG using mkbitmap + potrace.

Quick start

bash
# 1) Produce a silhouette-friendly SVG
bash scripts/trace_to_svg.sh input.png --out out.svg

# 2) Higher contrast + less noise
bash scripts/trace_to_svg.sh input.png --out out.svg --threshold 0.6 --turdsize 20

# 3) Feed into create-dxf (example)
# - set create-dxf drawing.etch_svg_paths[].d to the SVG path `d` you want, or
# - store the traced SVG and reference it in your pipeline.

Notes

  • •This is best for logos, silhouettes, high-contrast shapes.
  • •For photos or complex shading, results depend heavily on thresholding.
  • •Output is usually one or more <path> elements.