Struct Affine2D 

pub struct Affine2D {
    pub a: f32,
    pub b: f32,
    pub c: f32,
    pub d: f32,
    pub tx: f32,
    pub ty: f32,
}

A 2D affine transformation matrix (3×2).

Stored as [a, b, c, d, tx, ty] representing:

| a  b  tx |
| c  d  ty |
| 0  0   1 |

Fields

a: f32

Scale/rotation element (0,0).

b: f32

Scale/rotation element (0,1).

c: f32

Scale/rotation element (1,0).

d: f32

Scale/rotation element (1,1).

tx: f32

Translation X.

ty: f32

Translation Y.

Implementations

impl Affine2D

pub const IDENTITY: Self

Identity transform.

pub fn translate(tx: f32, ty: f32) -> Self

Create a translation transform.

pub fn scale(sx: f32, sy: f32) -> Self

Create a scaling transform.

pub fn rotate(angle: f32) -> Self

Create a rotation transform (angle in radians).

pub fn then(self, other: Self) -> Self

Compose: apply self then other (other × self).

pub fn apply(self, p: [f32; 2]) -> [f32; 2]

Transform a point.

pub fn to_mat3_cols(self) -> [f32; 12]

Convert to a column-major 3×3 matrix for GPU uniform upload.

Trait Implementations

impl Clone for Affine2D

fn clone(&self) -> Affine2D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Affine2D

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

Formats the value using the given formatter.

impl Default for Affine2D

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Affine2D

fn eq(&self, other: &Affine2D) -> 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 Affine2D

impl StructuralPartialEq for Affine2D