/claim #78

Problem

Extra trace lines were appearing in schematic diagrams after the post-processing step.

Root Cause

In UntangleTraceSubsolver._applyBestRoute(), when replacing an L-shaped corner with a new route, the function was directly concatenating path segments without simplifying them. This could leave redundant collinear points or duplicate consecutive points.

Solution

1. Call simplifyPath immediately after rerouting - Added call to simplifyPath() in _applyBestRoute()
2. Enhanced simplifyPath to handle duplicate points - Added preprocessing step to remove duplicate consecutive points
3. Added comprehensive tests - 8 new tests for simplifyPath

Files Changed

• lib/solvers/TraceCleanupSolver/sub-solver/UntangleTraceSubsolver.ts
• lib/solvers/TraceCleanupSolver/simplifyPath.ts
• tests/functions/simplifyPath.test.ts (new)
• tests/examples/__snapshots__/example29.snap.svg (updated)

Test Results

All 57 tests pass ✓