qualia_core_db/domains/geospatial/
canvas_query.rs

1//! Spatio-temporal region query — the P4 entry point over the quadtree index.
2
3use super::spatial::{SpatialElement, SpatiotemporalQuadTree};
4
5/// Query assets in a bounding box over a temporal window.
6/// Returns H3/cell indices of matching elements.
7pub fn query_region(
8    tree: &SpatiotemporalQuadTree,
9    bbox: (f64, f64, f64, f64),
10    time_range: (u64, u64),
11) -> Vec<u64> {
12    let (x1, y1, x2, y2) = bbox;
13    let (t0, t1) = time_range;
14    tree.query_region(x1, y1, x2, y2, t0, t1)
15}
16
17/// Register an asset placement into the spatial index.
18pub fn index_asset(
19    tree: &mut SpatiotemporalQuadTree,
20    h3_index: u64,
21    bounds: (f64, f64, f64, f64),
22    valid_from: u64,
23    valid_until: u64,
24) {
25    tree.insert(SpatialElement {
26        h3_index,
27        bounds,
28        t0: valid_from,
29        t1: valid_until,
30    });
31}
32
33#[cfg(test)]
34mod tests {
35    use super::*;
36
37    #[test]
38    fn query_region_delegates_to_quadtree() {
39        let mut tree = SpatiotemporalQuadTree::new((0.0, 0.0, 100.0, 100.0));
40        index_asset(&mut tree, 42, (10.0, 10.0, 20.0, 20.0), 100, 200);
41        let hits = query_region(&tree, (15.0, 15.0, 25.0, 25.0), (150, 160));
42        assert_eq!(hits, vec![42]);
43    }
44}

qualia_core_db/domains/geospatial/canvas_query.rs

qualia_core_db/domains/geospatial/
canvas_query.rs