Function situated_within 

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

True iff the artefact’s footprint is within the jurisdiction (a proper part — tangential or not — or equal). A footprint that straddles the boundary (PartiallyOverlapping) is not within: a rights-bounded view does not render an artefact that pokes outside permitted space.