Function place_relation 

pub fn place_relation(
    art: &NQuin,
    jurisdiction_id: u64,
    jurisdiction_poly: &[(f64, f64)],
    radius: f64,
) -> Rcc8Relation

Spatio-temporal query. The RCC-8 topological relation of the artefact’s footprint (a square of half-side radius centred on its location) to a jurisdiction polygon. Delegates to evaluate_rcc8_points — no bespoke geometry.