# Graph Report - d:/Int SandCastle  (2026-04-15)

## Corpus Check
- Large corpus: 1277 files · ~9,282,356 words. Semantic extraction will be expensive (many Claude tokens). Consider running on a subfolder, or use --no-semantic to run AST-only.

## Summary
- 77 nodes · 113 edges · 6 communities detected
- Extraction: 94% EXTRACTED · 6% INFERRED · 0% AMBIGUOUS · INFERRED: 7 edges (avg confidence: 0.84)
- Token cost: 0 input · 0 output

## Community Hubs (Navigation)
- [[_COMMUNITY_REST API + Control Panel|REST API + Control Panel]]
- [[_COMMUNITY_UI Controller (ui.js)|UI Controller (ui.js)]]
- [[_COMMUNITY_Cesium Capture Pipeline|Cesium Capture Pipeline]]
- [[_COMMUNITY_Coordinate Math Helpers|Coordinate Math Helpers]]
- [[_COMMUNITY_Legacy app.js|Legacy app.js]]
- [[_COMMUNITY_UAV-GeoLoc Dataset Tree|UAV-GeoLoc Dataset Tree]]

## God Nodes (most connected - your core abstractions)
1. `SandCastleUI` - 15 edges
2. `Control Panel (index.html)` - 9 edges
3. `server.js (Express backend)` - 9 edges
4. `generateCoordinates()` - 6 edges
5. `output/ directory tree` - 5 edges
6. `cameraFrames` - 5 edges
7. `captureNextTile()` - 4 edges
8. `getBoundsFromSettings()` - 4 edges
9. `Cesium` - 4 edges
10. `Camera trajectory JSON` - 4 edges

## Surprising Connections (you probably didn't know these)
- `server.js (Express backend)` --exposes--> `POST /api/save-db-crop`  [EXTRACTED]
  README.md → README.md  _Bridges community 0 → community 5_
- `server.js (Express backend)` --exposes--> `POST /api/save-trajectory`  [EXTRACTED]
  README.md → README.md  _Bridges community 0 → community 2_

## Hyperedges (group relationships)
- **Capture pipeline** — readme_control_panel, readme_capture_html, readme_mapview_html, readme_broadcastchannel, readme_server_js [EXTRACTED 1.00]
- **Trajectory schema fields** — readme_camera_frames, readme_ecef_position, readme_rotation, readme_coordinate, readme_fov_vertical [EXTRACTED 1.00]
- **UAV-GeoLoc output layout** — readme_output_tree, readme_db_crop, readme_db_position_txt, readme_drone_frame, readme_trajectory, readme_region_txt [EXTRACTED 1.00]

## Communities

### Community 0 - "REST API + Control Panel"
Cohesion: 0.13
Nodes (18): POST /api/create-folders, GET /api/get-settings, POST /api/save-settings, POST /api/start-capture, Control Panel (index.html), DMS coordinates, Express, Grid step (meters) (+10 more)

### Community 1 - "UI Controller (ui.js)"
Cohesion: 0.28
Nodes (1): SandCastleUI

### Community 2 - "Cesium Capture Pipeline"
Cohesion: 0.15
Nodes (16): POST /api/save-trajectory, BroadcastChannel('sandcastle-map'), cameraFrames, capture.html (Cesium Viewer), Cesium, Cesium Ion Token (asset 2275207), coordinate (geodetic), ECEF position (Cartesian3.fromDegrees) (+8 more)

### Community 3 - "Coordinate Math Helpers"
Cohesion: 0.26
Nodes (10): computeGrid(), decimalToDMS(), generateCoordinates(), getBoundsFromSettings(), getScenePath(), metersToLat(), metersToLon(), normalizeSettings() (+2 more)

### Community 4 - "Legacy app.js"
Cohesion: 0.43
Nodes (4): captureNextTile(), downloadFile(), metersToLat(), metersToLon()

### Community 5 - "UAV-GeoLoc Dataset Tree"
Cohesion: 0.33
Nodes (7): POST /api/save-db-crop, POST /api/save-drone-frame, Dataset/Country/City/Region tree, DB crop (ortho crop), db_postion.txt, Drone frame (query), output/ directory tree

## Knowledge Gaps
- **16 isolated node(s):** `Cesium Ion Token (asset 2275207)`, `ui.js (UI controller)`, `package.json`, `db_postion.txt`, `{region}.txt (bounds)` (+11 more)
  These have ≤1 connection - possible missing edges or undocumented components.

## Suggested Questions
_Questions this graph is uniquely positioned to answer:_

- **Why does `Camera trajectory JSON` connect `Cesium Capture Pipeline` to `UAV-GeoLoc Dataset Tree`?**
  _High betweenness centrality (0.131) - this node is a cross-community bridge._
- **Why does `server.js (Express backend)` connect `REST API + Control Panel` to `Cesium Capture Pipeline`, `UAV-GeoLoc Dataset Tree`?**
  _High betweenness centrality (0.110) - this node is a cross-community bridge._
- **Why does `output/ directory tree` connect `UAV-GeoLoc Dataset Tree` to `REST API + Control Panel`, `Cesium Capture Pipeline`?**
  _High betweenness centrality (0.086) - this node is a cross-community bridge._
- **Are the 4 inferred relationships involving `Control Panel (index.html)` (e.g. with `ui.js (UI controller)` and `POST /api/save-settings`) actually correct?**
  _`Control Panel (index.html)` has 4 INFERRED edges - model-reasoned connections that need verification._
- **What connects `Cesium Ion Token (asset 2275207)`, `ui.js (UI controller)`, `package.json` to the rest of the system?**
  _16 weakly-connected nodes found - possible documentation gaps or missing edges._
- **Should `REST API + Control Panel` be split into smaller, more focused modules?**
  _Cohesion score 0.13 - nodes in this community are weakly interconnected._