Struct Matrix 

pub struct Matrix {
    pub a: f64,
    pub b: f64,
    pub c: f64,
    pub d: f64,
    pub tx: f64,
    pub ty: f64,
}

Affine transformation matrix [a, b, c, d, tx, ty].

Transforms point (x, y) to: x’ = ax + cy + tx y’ = bx + dy + ty

Fields

a: f64

b: f64

c: f64

d: f64

tx: f64

ty: f64

Implementations

impl Matrix

pub fn identity() -> Matrix

Identity matrix.

pub fn new(a: f64, b: f64, c: f64, d: f64, tx: f64, ty: f64) -> Matrix

Create from 6 components.

pub fn translate(tx: f64, ty: f64) -> Matrix

Translation matrix.

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

Scaling matrix.

pub fn rotate(angle: f64) -> Matrix

Rotation matrix (angle in degrees).

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

Column-vector multiply: self × other.

Composes two transforms: the result applies other first, then self.

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

PostScript concat: CTM = other × CTM (row-vector convention).

Uses column-vector multiply internally: self.multiply(other).

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

Transform a point.

pub fn transform_delta(&self, dx: f64, dy: f64) -> (f64, f64)

Transform a delta (no translation).

pub fn determinant(&self) -> f64

Determinant.

pub fn invert(&self) -> Option<Matrix>

Inverse matrix, or None if singular.

pub fn to_array(&self) -> [f64; 6]

Convert to [a, b, c, d, tx, ty] array.

Trait Implementations

impl Clone for Matrix

fn clone(&self) -> Matrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Matrix

impl Debug for Matrix

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

Formats the value using the given formatter.

impl Default for Matrix

fn default() -> Matrix

Returns the “default value” for a type.