Trait arroy::Distance

source ·

pub trait Distance: Send + Sync + Sized + Clone + Debug + 'static {
    type Header: Pod + Zeroable + Debug;

Show 16 methods    // Required methods
    fn name() -> &'static str;
    fn new_header(vector: &UnalignedF32Slice) -> Self::Header;
    fn built_distance(p: &Leaf<'_, Self>, q: &Leaf<'_, Self>) -> f32;
    fn init(node: &mut Leaf<'_, Self>);
    fn create_split<R: Rng>(
        children: &ImmutableSubsetLeafs<'_, Self>,
        rng: &mut R,
    ) -> Result<Vec<f32>>;
    fn margin_no_header(p: &UnalignedF32Slice, q: &UnalignedF32Slice) -> f32;

    // Provided methods
    fn non_built_distance(p: &Leaf<'_, Self>, q: &Leaf<'_, Self>) -> f32 { ... }
    fn normalized_distance(d: f32) -> f32 { ... }
    fn pq_distance(distance: f32, margin: f32, side: Side) -> f32 { ... }
    fn norm(leaf: &Leaf<'_, Self>) -> f32 { ... }
    fn norm_no_header(v: &UnalignedF32Slice) -> f32 { ... }
    fn normalize(node: &mut Leaf<'_, Self>) { ... }
    fn update_mean(
        mean: &mut Leaf<'_, Self>,
        new_node: &Leaf<'_, Self>,
        norm: f32,
        c: f32,
    ) { ... }
    fn margin(p: &Leaf<'_, Self>, q: &Leaf<'_, Self>) -> f32 { ... }
    fn side<R: Rng>(
        normal_plane: &UnalignedF32Slice,
        node: &Leaf<'_, Self>,
        rng: &mut R,
    ) -> Side { ... }
    fn preprocess(
        _wtxn: &mut RwTxn<'_>,
        _new_iter: impl for<'a> Fn(&'a mut RwTxn<'_>) -> Result<RwPrefix<'a, KeyCodec, NodeCodec<Self>>>,
    ) -> Result<()> { ... }
}