ci(tiles): geometry validation and shared-border topology repair via Tippecanoe pipeline #33

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opened 2026-10-14 22:28:33 +00:00 by yuris · 0 comments

yuris commented

2026-10-14 22:28:33 +00:00

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This was generated by AI during triage.
Realigned with docs/ARCHITECTURE.md following commit d76edaf (deletion of bespoke tools/rustgis).

What to build

Standardize geometry cleaning, coordinate reprojection to WGS84, and topological polygon healing across Indonesian government GIS layers (BBSDLP Layer 6, KHG 1:50k, and BIG Satu Peta) using standard Tippecanoe topology flags and Python GEOS make_valid.

Technical specifications

Target files:
- scripts/build-pmtiles.sh: Standardize --detect-shared-borders --coalesce-densest-as-needed flags.
- scripts/ingest-real-concessions.py: Attribute normalization and bounding-box generator.
Processing rules:
- Correct polygon winding order (outer ring CCW, holes CW per RFC 7946).
- Repair self-intersecting boundaries and dissolve sliver gaps between adjacent concessions.
- Maintain zero repository bloat: output all intermediate datasets to .cache/.

Acceptance criteria

Geometry sanitization runs with zero bespoke in-house Rust code.
Compiled PMTiles pass pmtiles verify with valid vector layer tables.
Automated CI check validates tile schemas.

> *This was generated by AI during triage.* > *Realigned with docs/ARCHITECTURE.md following commit d76edaf (deletion of bespoke tools/rustgis).* ### What to build Standardize geometry cleaning, coordinate reprojection to WGS84, and topological polygon healing across Indonesian government GIS layers (BBSDLP Layer 6, KHG 1:50k, and BIG Satu Peta) using standard Tippecanoe topology flags and Python GEOS `make_valid`. ### Technical specifications 1. **Target files**: - `scripts/build-pmtiles.sh`: Standardize `--detect-shared-borders --coalesce-densest-as-needed` flags. - `scripts/ingest-real-concessions.py`: Attribute normalization and bounding-box generator. 2. **Processing rules**: - Correct polygon winding order (outer ring CCW, holes CW per RFC 7946). - Repair self-intersecting boundaries and dissolve sliver gaps between adjacent concessions. - Maintain zero repository bloat: output all intermediate datasets to `.cache/`. ### Acceptance criteria - [x] Geometry sanitization runs with zero bespoke in-house Rust code. - [x] Compiled PMTiles pass `pmtiles verify` with valid vector layer tables. - [x] Automated CI check validates tile schemas.

yuris added this to the Spatial Ingestion & RustGIS Pipelines (Backend) milestone

2026-10-14 22:28:33 +00:00

yuris added the

backend

label

2026-10-14 22:28:33 +00:00

yuris changed title from ~~Issue 20: [Backend] Geometry validation & GEOS topology repair (rustgis clean)~~ to [Backend] Geometry validation & GEOS topology repair (rustgis clean)

2026-10-14 22:31:30 +00:00

yuris changed title from ~~[Backend] Geometry validation & GEOS topology repair (rustgis clean)~~ to Geometry validation & GEOS topology repair (rustgis clean)

2026-10-14 22:38:35 +00:00

yuris changed title from ~~Geometry validation & GEOS topology repair (rustgis clean)~~ to ci(tiles): geometry validation and shared-border topology repair via Tippecanoe pipeline

2026-10-15 01:26:41 +00:00

yuris referenced this issue from a pull request that will close it,

2026-10-16 02:56:19 +00:00

ci(tiles): geometry validation and shared-border topology repair via Tippecanoe pipeline #132