Struct ExactPoint2 

pub struct ExactPoint2 { /* private fields */ }

A planar point with exact rational coordinates.

Either an input endpoint, which is a pair of doubles, or a crossing of two segments, (x / w, y / w) with dyadic x, y and w > 0. Equality and order are exact; the order is lexicographic (x, then y), which is the sweep order.

Implementations

impl ExactPoint2

pub fn from_homogeneous(x: Dyadic, y: Dyadic, w: Dyadic) -> Option<ExactPoint2>

The point (x / w, y / w), or None when w is zero.

pub fn as_input(&self) -> Option<DVec2>

The input endpoint this point is, when it is one.

Every point the sweep reports that is not a proper crossing is an input endpoint, and then these are exactly its doubles.

pub fn homogeneous(&self) -> (Dyadic, Dyadic, Dyadic)

Exact homogeneous coordinates (x, y, w) with w > 0.

pub fn rounded(&self) -> DVec2

Each coordinate correctly rounded to the nearest double, ties to even. An input endpoint comes back bit for bit.

For output only: rounding moves the point, so a rounded crossing may lie off both segments it is on.

Trait Implementations

impl Clone for ExactPoint2

fn clone(&self) -> ExactPoint2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExactPoint2

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

Formats the value using the given formatter.

impl Eq for ExactPoint2

impl Ord for ExactPoint2

fn cmp(&self, other: &ExactPoint2) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ExactPoint2

fn eq(&self, other: &ExactPoint2) -> bool

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ExactPoint2

fn partial_cmp(&self, other: &ExactPoint2) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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