Function num_arg

nodedb-query/src/geo_functions.rs:361–363

(args: &[Value], idx: usize)

}

fn num_arg(args: &[Value], idx: usize) -> Option<f64> {
    args.get(idx).and_then(|v| value_to_f64(v, true))
}

/// Extract a geometry argument. Supports `Value::Geometry` directly,
/// or falls back to JSON deserialization for `Value::Object` (GeoJSON).