Struct geo_crossings::SweepPoint

pub struct SweepPoint<T: GeoNum>(_);

Wraps a Coordinate to support lexicographic ordering.

The ordering is by x and then by y. Implements PartialOrd, Ord and Eq even though Coordinate doesn’t implement these. This is necessary to support insertion to ordered collections, especially BinaryHeap as required by sweep algorithms.

Note that the trait impls exist even when T is not Eq or Ord. We must ensure that any sweep point only contains values that can be consistently ordered.

Implementations

impl<T: GeoNum> SweepPoint<T>

pub fn coord(&self) -> Coordinate<T>

Trait Implementations

impl<T: Clone + GeoNum> Clone for SweepPoint<T>

fn clone(&self) -> SweepPoint<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: GeoNum> Debug for SweepPoint<T>

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

Formats the value using the given formatter.

impl<T: GeoNum> From<(T, T)> for SweepPoint<T>

fn from(coords: (T, T)) -> Self

Performs the conversion.

impl<T: GeoNum> From<Coordinate<T>> for SweepPoint<T>

Create from Coordinate assuming the components are finite.

fn from(pt: Coordinate<T>) -> Self

Performs the conversion.

impl<T: GeoNum> Ord for SweepPoint<T>

Derive Ord from PartialOrd and expect to not fail.

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<T: PartialEq + GeoNum> PartialEq<SweepPoint<T>> for SweepPoint<T>

fn eq(&self, other: &SweepPoint<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &SweepPoint<T>) -> bool

This method tests for !=.

impl<T: GeoNum> PartialOrd<SweepPoint<T>> for SweepPoint<T>

Implememnt lexicographic ordering by x and then by y coordinate.

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: Copy + GeoNum> Copy for SweepPoint<T>

impl<T: GeoNum> Eq for SweepPoint<T>

We derive Eq manually to not require T: Eq.

impl<T: GeoNum> StructuralPartialEq for SweepPoint<T>