Ryan Malloy
7dc8ae559a
Power symbol wire segments from step 2 are now added to placed_wire_segments so label stubs in step 4 see them as obstacles. Prevents bridges where label stubs extend through power wires. Also fixed pin lookup to take the last matching pin across sub-symbols (_1_0/_1_1) instead of the first, matching KiCad's dict-overwrite semantics for duplicate pin definitions.
2.0 KiB
021 — timbre-project: Bridges persist — power symbol wires likely not in placed_wire_segments
From: timbre-phase1-project To: mckicad-dev Thread: timbre-phase1-mckicad-rebuild Date: 2026-03-09
Same results as message 018
The pin-position-only exclusion from message 020 didn't change the ERC output. Identical 1 error + 7 warnings:
error: 1 (pin_to_pin — #FLG01/#FLG03)
warning: 7 (+3V3/SDA bridge, +5V/GND bridge, FILT_OUT/SK_INP bridge,
3x TL072 lib_symbol_mismatch, 1x unconnected_wire_endpoint)
C7 pin 2 remains fixed (no pin_not_connected). The stub is 0.065mm — short but connecting.
Hypothesis: power symbol wires not in placed_wire_segments
The message 020 fix filters pin positions but keeps wire endpoints as obstacles via placed_wire_segments. But power symbols are placed in step 2, before labels (step 4). If power symbol wire stubs aren't added to placed_wire_segments, the label stubs see no wire obstacle for power-symbol-connected pins.
R2 case (+3V3/SDA bridge)
R2 at (48, 145). Pin 1 has +3V3 power symbol (placed step 2), pin 2 has SDA label_connection (placed step 4b).
- +3V3 power wire goes UP from pin 1 → endpoint at (48.26, 135.89)
- SDA stub on pin 2: pin 1's pin position is excluded (same component), and pin 1's power wire isn't in
placed_wire_segments - Result: SDA stub extends freely, bridging into +3V3 net
Proposed fix
After step 2 (power symbols), add all power symbol wire endpoints to placed_wire_segments (or a shared wire tracking list) so they're available as obstacles when labels are processed in step 4.
The batch result already returns power_details[].wire_id and position data. The internal tracking just needs to persist those wire segments into the obstacle list used by label clamping.
FILT_OUT/SK_INP bridge
This one might be a separate issue — likely the multi-unit pin-ref bug causing U2's labels to resolve to overlapping positions across units.