Struct Transform 

pub struct Transform {
    pub translate_x: f32,
    pub translate_y: f32,
    pub scale_x: f32,
    pub scale_y: f32,
    pub rotate: f32,
}

Fields

translate_x: f32

translate_y: f32

scale_x: f32

scale_y: f32

rotate: f32

Implementations

impl Transform

pub fn identity() -> Self

pub fn translate(x: f32, y: f32) -> Self

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

pub fn apply_to_rect(&self, r: Rect) -> Rect

pub fn combine(&self, other: &Transform) -> Transform

Compose two transforms: self then other (post-multiply).

Returns a transform such that combined.apply_to_point(p) == other.apply_to_point(self.apply_to_point(p)).

Limitation: the TRS representation is not closed under matrix multiplication when both transforms have rotation and non-uniform scale. In that case the result is an approximation (off-diagonal rotation/scale coupling is dropped). For UI use (uniform scale or no rotation) this is exact.

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 Copy for Transform

impl Debug for Transform

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

Formats the value using the given formatter.

impl Default for Transform

fn default() -> Transform

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 StructuralPartialEq for Transform