ba1212361f
Commit the previously-untracked standard directories and catalog them in the
root README alongside proof:
- aac/ — communication cargo class: portable boards + a ten-level
offline-first cascade (Apache-2.0 code / CC-BY-4.0 spec).
- map/ — geospatial cargo class: range-requestable signed tilesets +
an F0–F4 fidelity cascade (Apache-2.0 code / CC-BY-4.0 spec).
- sandbox/— isolated, metered, attested execution across the heterogeneous
compute fabric (Apache-2.0 code / CC-BY-4.0 spec).
- jouleclaw-otel-authz, jouleclaw-trust — new jouleclaw reference crates.
Root README now lists aac, map, sandbox, and proof in the catalog, the tree,
and the contribution guide.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
55 lines
1.7 KiB
Rust
55 lines
1.7 KiB
Rust
//! Bridge from route-layer geometry to the standard's address space.
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use map_index::volume::TimeTier;
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use map_schema::{CellKey, Lod, TimeBucket};
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use crate::Coordinate;
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/// The [`CellKey`] for a WGS84 coordinate at a horizontal `level`. Uses the
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/// coordinate's altitude (if any) for the band, and an atemporal time bucket
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/// (use [`coordinate_cell_key_at`] for a timestamped observation).
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pub fn coordinate_cell_key(coord: &Coordinate, level: u8) -> CellKey {
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map_index::cell_key(
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coord.lat,
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coord.lng,
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level,
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map_index::alt_band(coord.altitude.unwrap_or(0.0)),
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TimeBucket::ATEMPORAL,
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Lod(0),
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)
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}
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/// The [`CellKey`] for a coordinate observed at `time_secs` (epoch seconds) at
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/// the given time `tier`.
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pub fn coordinate_cell_key_at(coord: &Coordinate, level: u8, time_secs: i64, tier: TimeTier) -> CellKey {
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map_index::cell_key(
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coord.lat,
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coord.lng,
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level,
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map_index::alt_band(coord.altitude.unwrap_or(0.0)),
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map_index::time_bucket(time_secs, tier),
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Lod(0),
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)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn surface_coordinate_maps_to_band_zero() {
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let c = Coordinate::new(37.7749, -122.4194);
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let k = coordinate_cell_key(&c, 14);
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assert_eq!(k.alt, map_schema::AltBand(0));
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assert_eq!(k.s2.level(), Some(14));
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assert!(k.time.is_atemporal());
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}
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#[test]
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fn timestamped_coordinate_gets_time_bucket() {
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let c = Coordinate::new(0.0, 0.0);
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let k = coordinate_cell_key_at(&c, 10, 3_600 + 5, TimeTier::Recent);
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assert_eq!(k.time.width_ms, 3_600_000);
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assert_eq!(k.time.start_tai_ms, 3_600_000);
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}
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}
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