Struct Rect

pub struct Rect {
    pub width: f64,
    pub height: f64,
}

Struct that represents a rectangle.

Fields

width: f64

height: f64

Implementations

impl Rect

pub fn new(w: f64, h: f64) -> Option<Rect>

Returns a new Rect from given width w and height h.

Examples

let rect = polys::Rect::new(12.0, 6.0);

pub fn square(w: f64) -> Option<Rect>

Returns a new Rect where both width and height are set to given value w.

Examples

let square = polys::Rect::square(12.0);

pub fn split(&self) -> Option<Tri>

Returns the triangle created by cutting the Rect through two opposite corners.

Examples

use crate::polys::Polygon;

let rect = polys::Rect::new(3.0, 4.0)
    .expect("Cound not make Rect")
    .split()
    .expect("Could not convert to Tri");
let tri = polys::Tri::new(3.0, 4.0, 5.0)
    .expect("Could not make Tri");

assert_eq!(rect.side3, tri.side3);

Trait Implementations

impl Debug for Rect

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

Formats the value using the given formatter.

impl Polygon for Rect

fn area(&self) -> Option<f64>

Gets the area of the Rect according to its width and height.

Examples

use crate::polys::Polygon;

let rect = polys::Rect::new(10.0, 5.0)
    .expect("Could not make Rect");
let area = rect.area().expect("Is none");
assert_eq!(area, 50.0);

fn peri(&self) -> Option<f64>

Gets the perimeter of the Rect from its width and height.

Examples

use crate::polys::Polygon;

let rect = polys::Rect::new(10.0, 5.0)
    .expect("Could not make Rect");
let peri = rect.peri().expect("Is none");
assert_eq!(peri, 30.0);

fn angles(&self) -> Option<Vec<f64>>

Returns interior angles (all 90) in degrees.

Examples

use crate::polys::Polygon;

let rect = polys::Rect::new(10.0, 5.0)
    .expect("Could not make Rect");
let angles = rect.angles().expect("Is none");
assert_eq!((angles)[0], 90.0);