Struct Segment 

pub struct Segment {
    pub l: Point,
    pub r: Point,
}

A line segment between two points where l.x < r.x.

Fields

l: Point

Left endpoint (smaller x).

r: Point

Right endpoint (larger x).

Implementations

impl Segment

pub fn new(l: Point, r: Point) -> Result<Self>

Create a new segment from left point l to right point r.

Errors

Returns an error if l == r or l.x >= r.x.

pub fn eval(&self, x: f64) -> Result<f64>

Evaluate the linear function at x.

Errors

Returns an error if x is outside the segment’s x-range.

pub fn approximately_equal(&self, other: &Self) -> bool

Whether two segments are approximately equal (within relative tolerance 1e-5 on both y-coordinates).

pub fn compatible(&self, other: &Self) -> bool

Whether two segments share the same x-range.

pub fn slope(&self) -> f64

The slope (r.y - l.y) / (r.x - l.x).

pub fn above(&self, other: &Self) -> Result<bool>

Whether self is strictly above other (both endpoints at least as high, and not equal).

Errors

Returns an error if the segments are not compatible.

pub fn above_eq(&self, other: &Self) -> Result<bool>

Whether self is above or equal to other.

Errors

Returns an error if the segments are not compatible.

pub fn intersects(&self, other: &Self) -> Result<bool>

Whether two compatible segments intersect.

Errors

Returns an error if the segments are not compatible.

pub fn intersection(&self, other: &Self) -> Result<Option<Point>>

Compute the intersection point of two compatible segments, or None if they are equal or do not intersect.

The x-coordinate formula assumes both segments span [0, 1].

Errors

Returns an error if the segments are not compatible.

Trait Implementations

impl Clone for Segment

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Segment

impl Debug for Segment

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

Formats the value using the given formatter.

impl PartialEq for Segment

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

Equality operator ==.

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

Inequality operator !=.