05eaef966d
The open geospatial stack converged on PMTiles — a single-file, range-requestable archive served straight from object storage and read by MapLibre / pmtiles CLIs / Overture tooling. map's "a tileset is a file, not a service" is the same idea; emit the incumbent's format so map output is consumable without a map-specific reader. New map-pmtiles crate: a self-contained, round-trip-validated PMTiles v3 writer — Hilbert tile-id ordering (z=1 anchors + cross-zoom inverse verified), the varint clustered directory (delta tile-ids, run-length, consecutive-offset sentinel), and the 127-byte header. Directories and metadata written uncompressed (internal compression = none), so no gzip dep and deterministic bytes. read_tile() reads its own output back byte-identical for validation. from_map_tiles filters a tileset to its SURFACE tiles (alt 0, atemporal, base LOD) — PMTiles' 2-D z/x/y grid can't carry map's altitude/time/LOD axes (that 4-D coverage is GeoParquet's job). The S2 -> z/x/y projection is a caller-supplied seam (it lives in map's substrate), keeping this crate a pure serializer. Note: root-only directory (large tilesets need leaf dirs); interop with the reference pmtiles libs is the next validation. 4 tests green, clippy clean. Deps: map-schema + serde_json only. Co-Authored-By: Claude Opus 4.8 <[email protected]>
52 lines
1.4 KiB
TOML
52 lines
1.4 KiB
TOML
[workspace]
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resolver = "2"
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members = [
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"crates/map-schema",
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"crates/map-pmtiles",
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"crates/map-receipt",
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"crates/map-cascade",
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"crates/map-index",
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"crates/map-tiles",
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"crates/map-orbital",
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"crates/map-route",
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"crates/map-serve",
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"crates/map-serve-axum",
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"crates/map-conformance",
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]
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[workspace.package]
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version = "0.1.0"
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edition = "2021"
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license = "Apache-2.0"
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repository = "https://github.com/transaction-science/open-standards"
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rust-version = "1.85"
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[workspace.dependencies]
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map-schema = { path = "crates/map-schema" }
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map-receipt = { path = "crates/map-receipt" }
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map-cascade = { path = "crates/map-cascade" }
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map-index = { path = "crates/map-index" }
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map-tiles = { path = "crates/map-tiles" }
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map-orbital = { path = "crates/map-orbital" }
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map-route = { path = "crates/map-route" }
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map-serve = { path = "crates/map-serve" }
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map-serve-axum = { path = "crates/map-serve-axum" }
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axum = "0.7"
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tokio = { version = "1", features = ["rt", "rt-multi-thread", "net", "macros"] }
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blake3 = "1"
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image = { version = "0.25", default-features = false, features = ["png", "webp"] }
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flate2 = "1"
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chrono = { version = "0.4", features = ["serde"] }
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uuid = { version = "1", features = ["v4", "serde"] }
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ed25519-dalek = { version = "2", features = ["rand_core"] }
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ciborium = "0.2"
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serde = { version = "1", features = ["derive"] }
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serde_json = "1"
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base64 = "0.22"
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hex = "0.4"
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thiserror = "2"
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[workspace.lints.clippy]
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all = "warn"
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