tscircuit / tscircuit/schematic-trace-solver

Net labels can be placed inside chip bodies

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#655 4 comments 0 reactions 0 assignees View on GitHub

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Dominant language
TypeScript
Stars
13
Forks
314
Avg merge
9h 3m
Merged PRs (30d)
132

Description

In bug-report-20260707T230831Z the final placement leaves four net labels — VIN, VOUT, PG and U1.FB to R2.pin1 — fully inside chip bodies. They render behind the component and are illegible.

NetLabelNetLabelCollisionSolver only relocates a label when it overlaps another label (findNextCollidingPair looks for label-label overlaps). It does check candidate positions against chips, but only for labels it is already moving because of a label-label collision. A label that sits inside a chip without also colliding with another label is never checked against chips or moved out.

Repro (asserts no final net label is >50% inside a chip body): #653-branch adds a test.failing.

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with NetLabelNetLabelCollisionSolver and its findNextCollidingPair method, then inspect the test.failing reproduction added by the #653 branch. Run that reproduction against bug-report-20260707T230831Z and verify that the final placement leaves no net label more than 50% inside a chip body.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
computer-graphics, testing
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Clearly specified
Newbie friendliness
74/100

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