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fix(autorouting): avoid duplicating breakout-covered ports as plane-terminated traces (#4660) - #4875

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ducanh3005:fix/dogbone-fanout-copperpour-4660
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fix(autorouting): avoid duplicating breakout-covered ports as plane-terminated traces (#4660)#4875
ducanh3005 wants to merge 1 commit into
tscircuit:mainfrom
ducanh3005:fix/dogbone-fanout-copperpour-4660

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@ducanh3005

@ducanh3005 ducanh3005 commented Oct 23, 2026

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Summary

Prevents from throwing Error: Dogbone connection ... has no source pad when an escaped net also has a .

Details

  • In getSimpleRouteJsonFromCircuitJson.ts, filter sourceTraces passed to getPlaneTerminatedSourceTraceLayers so traces whose connected source ports are already covered by sourcePortIdToBreakoutPoint are not re-emitted as duplicate plane-terminated connections without a source pad.
  • Added a regression test in ests/breakout/fanout-dogbone-copperpour.test.tsx verifying dogbone fanout routing when escaped nets (GND, VCC) also have inner-layer copper pours.

Fixes #4660
/claim #4660

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Dogbone fanout crashes with a copper pour on an escaped net: "Dogbone connection ... has no source pad"

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