fix: obb coordinate retrieval

[asabri97]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Fixes Oriented Bounding Box (OBB) coordinate retrieval so Flutter can correctly expose YOLOResult.obbPoints ✅

📊 Key Changes

• Adds classIndex to OBB result maps on Android (YOLOPlugin.kt) and iOS (YOLOInstanceManager.swift) for consistent metadata
• Updates Flutter inference mapping to populate a polygon field from OBB points, enabling YOLOResult.obbPoints extraction
• Improves robustness: handles empty OBB point lists and uses typed map conversion/safe getters for parsing
• Extends YOLOResult with obbPoints, adds backward-compatible parsing (polygon or obbPoints), and includes polygon in toMap()
• Bumps version to 0.1.47 and documents the fix in CHANGELOG.md
• Adds tests covering mixed-type polygon parsing and toMap()/fromMap() round-trip

🎯 Purpose & Impact

• Restores OBB polygon availability in Flutter results, enabling rotated box workflows (rendering, post-processing, export) 📐
• Aligns iOS/Android OBB payloads and fixes incorrect/default classIndex handling 🧩
• Increases stability when native payloads contain mixed types or missing/empty point data 🛡️

[UltralyticsAssistant]

👋 Hello @asabri97, thank you for submitting a ultralytics/yolo-flutter-app 🚀 PR! This is an automated message—an engineer will review and assist soon 🧰

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[UltralyticsAssistant]

🔍 PR Review

_{Made with ❤️ by Ultralytics Actions}

Good, focused fix aligning Android/iOS OBB payloads and ensuring Flutter exposes OBB polygons via polygon/obbPoints, with solid test coverage. Two robustness gaps remain: (1) bounding box computation can still output infinities when points is present but invalid, and (2) obbPoints parsing should filter to points that include both x and y to avoid partially-formed coordinates.

💬 Posted 2 inline comments

[codecov]

Codecov Report

❌ Patch coverage is 34.61538% with 17 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
lib/core/yolo_inference.dart	0.00%	17 Missing ⚠️

📢 Thoughts on this report? Let us know!

[UltralyticsAssistant]

🔍 PR Review 2

_{Made with ❤️ by Ultralytics Actions}

PR looks clean. The changes are consistent with the stated goal, and I didn’t find any new bugs or reliability issues in the modified lines.

[cyberN80]

Thanks, @asabri97, looks great and I approve merging!