Enum Predicate 

pub enum Predicate {
    Intersects(Bounds),
    Within(Bounds),
    Contains(Bounds),
}

A spatial query against the index, expressed on bounding boxes.

Mirrors the index::detail::predicates family (index/predicates.hpp). Each variant carries the query box.

Variants

Intersects(Bounds)

Values whose bounds intersect the query box. Boost’s index::intersects.

Within(Bounds)

Values whose bounds are fully inside the query box. Boost’s index::within.

Contains(Bounds)

Values whose bounds fully contain the query box. Boost’s index::contains.

Implementations

impl Predicate

pub fn matches(&self, value: &Bounds) -> bool

Whether a leaf value with box value satisfies this predicate.

pub fn could_match(&self, node: &Bounds) -> bool

Whether a subtree with box node could contain any matching value — the pruning test. A subtree is skipped when this is false.

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Predicate

impl Debug for Predicate

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for Predicate

fn eq(&self, other: &Predicate) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Predicate