Struct Matrix2D 

pub struct Matrix2D {
    pub a: f64,
    pub b: f64,
    pub c: f64,
    pub d: f64,
    pub h: f64,
    pub v: f64,
}

A 2D affine transformation matrix.

Fields

a: f64

b: f64

c: f64

d: f64

h: f64

v: f64

Implementations

impl Matrix2D

pub fn new(a: f64, b: f64, c: f64, d: f64, h: f64, v: f64) -> Self

Create a new matrix with explicit components.

pub fn identity() -> Self

The identity matrix.

pub fn translation(h: f64, v: f64) -> Self

Create a translation matrix.

pub fn scale(sx: f64, sy: f64) -> Self

Create a scaling matrix.

pub fn rotation(angle: f64) -> Self

Create a rotation matrix (angle in radians).

pub fn multiply(&self, other: &Matrix2D) -> Matrix2D

Multiply this matrix by another: self * other. This concatenates transformations: first other is applied, then self.

pub fn concat(&self, other: &Matrix2D) -> Matrix2D

Concatenate: equivalent to other * self (apply self first, then other).

pub fn determinant(&self) -> f64

Compute the determinant.

pub fn inverse(&self) -> Option<Matrix2D>

Compute the inverse matrix. Returns None if the matrix is singular.

pub fn transform_point(&self, x: f64, y: f64) -> Point

Transform a point through this matrix.

Trait Implementations

impl Clone for Matrix2D

fn clone(&self) -> Matrix2D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Matrix2D

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

Formats the value using the given formatter.

impl Default for Matrix2D

fn default() -> Self

Returns the “default value” for a type.

impl Mul for Matrix2D

type Output = Matrix2D

The resulting type after applying the * operator.

fn mul(self, rhs: Matrix2D) -> Matrix2D

Performs the * operation.

impl PartialEq for Matrix2D

fn eq(&self, other: &Matrix2D) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Matrix2D

impl StructuralPartialEq for Matrix2D