Adjust station color boundary ratio from 0.65 to 0.8

[TinyKitten]

Summary

Adjusted the boundary position ratio between consecutive station dots in the color segment computation to better align the color transitions in the animated SVG visualization.

Changes

• Updated BOUNDARY_RATIO constant from 0.65 to 0.8 in the computeColorSegments function
• This shifts the color boundary position to be closer to the next station dot (from 65% to 80% of the distance between consecutive stations)
• Updated the corresponding Japanese comment to reflect the new ratio value

Details

The boundary ratio determines where the color transition occurs between two consecutive stations in the pad architecture visualization. By increasing the ratio from 0.65 to 0.8, the color boundary now sits closer to the next station, which provides better visual alignment with the station dots in the animated SVG that is offset by ARC_SVG_Y_OFFSET.

https://claude.ai/code/session_01K6MMSXUhUdzXd5ne9UdeQh

Summary by CodeRabbit

リリースノート

• スタイル
  • カラーセグメント間の境界位置を調整しました。セグメントの視覚的配置がより精密になります。

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📝 Walkthrough

Walkthrough

PadArch.tsx内のcomputeColorSegments関数における色セグメント間の境界計算比率が0.65から0.8に変更されました。これにより、yStartおよびyEnd境界の計算が調整されます。その他の制御フローとレンダリングロジックは変更されていません。

Changes

Cohort / File(s)	Summary
Boundary Calculation Adjustment src/components/PadArch.tsx	Color segment boundary calculation ratio updated from 0.65 to 0.8 in computeColorSegments function, affecting how boundaries between color segments are computed.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• iPadアーチ表示で直通運転時に路線カラーを区間ごとに色分け #5325: 境界比の調整（0.65から0.8へ）がPadArch.txzのcomputeColorSegments関数を直接変更し、このPRで導入・使用される同じ関数に関連しています。

Suggested labels

react

Poem

🐰✨ A ratio's gentle shift,
From 0.65 to 0.8's drift,
Boundaries dance, colors align,
Small tweaks make the segment line shine! 🎨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	プルリクエストのタイトルは、変更セットの主要な変更点を正確に反映しており、境界比率の調整という具体的な内容を明確に伝えている。
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch claude/update-padarch-boundary-ratio-q13vz

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