Struct Transform 

pub struct Transform {
    pub position: Vec2,
    pub scale: Vec2,
    pub rotation: f32,
    pub pivot: Vec2,
    pub skew: Vec2,
}

Local 2D affine transform.

Defaults to identity: zero translation, unit scale, zero rotation/skew/pivot.

Fields

position: Vec2

Translation in parent coordinates. The pivot lands here.

scale: Vec2

Per-axis scale around the pivot.

rotation: f32

Rotation in radians (around the pivot).

pivot: Vec2

Anchor point in local coordinates that stays fixed under rotation/scale.

skew: Vec2

Per-axis skew in radians.

Implementations

impl Transform

pub const IDENTITY: Self

Identity transform — to_mat3 returns Mat3::IDENTITY.

pub const fn from_position(position: Vec2) -> Self

Construct a translation-only transform.

pub const fn from_scale(scale: Vec2) -> Self

Construct a scale-only transform.

pub const fn from_rotation(rotation: f32) -> Self

Construct a rotation-only transform (radians).

pub fn to_mat3(&self) -> Mat3

Compose this transform into a 3×3 affine matrix.

Order: T(position) · S(scale) · R(rotation) · K(skew) · T(-pivot).

pub fn transform_point(&self, p: Vec2) -> Vec2

Transform a 2D point through this transform.

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Transform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Transform

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

Formats the value using the given formatter.

impl Default for Transform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Transform

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

impl StructuralPartialEq for Transform