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Implement S2CellIndex and S2ClosestCellQuery #2

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c5b6ef6
Implementation and tests
benjamin-cooper-ai Dec 9, 2025
5bf704c
Format
benjamin-cooper-ai Dec 10, 2025
2dcaa75
ClosestCellQUery
benjamin-cooper-ai Dec 10, 2025
cabbb40
README
benjamin-cooper-ai Dec 10, 2025
c005646
Format and README
benjamin-cooper-ai Dec 10, 2025
87d1d31
Cleanup
Dec 11, 2025
610b2bb
Format
Dec 11, 2025
76b7f11
more cleanup
Dec 11, 2025
d06713d
Format
Dec 11, 2025
22ebb27
Tweaks
Dec 11, 2025
595a03b
Working so far
benjamin-cooper-ai Dec 12, 2025
748539d
Use ClosestEdge query
benjamin-cooper-ai Dec 12, 2025
29a7d9c
Fixup
benjamin-cooper-ai Dec 12, 2025
a7ba6a4
More tests
benjamin-cooper-ai Dec 12, 2025
ded28d1
more
benjamin-cooper-ai Dec 12, 2025
29b4a1b
tiny fix
benjamin-cooper-ai Dec 13, 2025
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26 changes: 15 additions & 11 deletions README.md
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Expand Up @@ -38,17 +38,21 @@ const { s2 } = require('s2js')

s2js is a full-featured JavaScript/TypeScript port of Google's S2 Geometry library. It supports:

| Feature | Supported? | Notes |
|----------------------------------|:---------:|:------|
| **CellId, Cell** | ✅ | Encoding, decoding, neighbors |
| **Point, LatLng** | ✅ | Spherical & Planar projections |
| **Loop, Polygon** | ✅ | Polygons, potentially with holes |
| **Polyline** | ✅ | Represents linear paths |
| **RegionCoverer** | ✅ | Cover regions (loops, polys) with S2 cells |
| **GeoJSON <> S2 conversions** | ✅ | Supports all GeoJSON geometry types |
| **Polygon contains/intersects** | ✅ | Point-in-polygon & shape intersection |
| **Union, Intersection, Difference** | ✅ | Basic boolean polygon operations |
| **BigInt cell/token conversion** | ✅ | Handles full 64-bit cell IDs |
| Feature | Supported? | Notes |
| ----------------------------------- | :--------: | :----------------------------------------- |
| **CellId, Cell** | ✅ | Encoding, decoding, neighbors |
| **Point, LatLng** | ✅ | Spherical & Planar projections |
| **Loop, Polygon** | ✅ | Polygons, potentially with holes |
| **Polyline** | ✅ | Represents linear paths |
| **RegionCoverer** | ✅ | Cover regions (loops, polys) with S2 cells |
| **GeoJSON <> S2 conversions** | ✅ | Supports all GeoJSON geometry types |
| **Polygon contains/intersects** | ✅ | Point-in-polygon & shape intersection |
| **Union, Intersection, Difference** | ✅ | Basic boolean polygon operations |
| **BigInt cell/token conversion** | ✅ | Handles full 64-bit cell IDs |
| **CellIndex, ClosestCellQuery** | ✅ | Query a list of cells with various shapes |


TODO: ADD CLOSESTEDGEQUERY HERE

### Feature Completeness

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