Ports IntBox, the simplest concrete convex tile (RegularTileShape): exact integer-corner rectangle with contains (border-inclusive and interior), intersection, union, intersects/overlaps, offset (round half up), horizontal/vertical offset, shrink, box containment, translate, and dimension. Adds the package __init__ exporting the geometry API. The general convex machinery beyond IntBox — TileShape/Simplex/IntOctagon and polygon split_to_convex — is deferred to the next geometry phase. Tests cover boundary vs interior containment, degenerate tiles (empty/point/segment), edge-touching intersects-vs-overlaps, rational point on a border, and half-up offset rounding.
freeroute
A native Python PCB autorouter — a Java-free port of the FreeRouting engine.
Why
kicad-mcp currently autoroutes by shelling out to freerouting.jar, which
drags in a JVM dependency. freeroute reimplements the routing engine in
pure Python so the toolchain needs no Java at all.
The contract
The entire integration surface is two Specctra files:
board.dsn ──▶ freeroute ──▶ board.ses
(unrouted) (routed session: traces + vias)
kicad-cli already exports .dsn and imports .ses, so freeroute is a
drop-in replacement for the JAR step — nothing else in the pipeline changes.
Status
Pre-alpha. Under active development. See docs/PORTING_PLAN.md
for the architecture and porting roadmap.
Usage (target)
freeroute board.dsn -o board.ses
Development
uv sync
uv run pytest
uv run ruff check src/ tests/
License
GPL-3.0-or-later, matching the FreeRouting source it is ported from.
Languages
Python
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