Struct Transform

pub struct Transform {
    pub xx: f32,
    pub xy: f32,
    pub yx: f32,
    pub yy: f32,
    pub x: f32,
    pub y: f32,
}

Two dimensional transformation matrix.

Fields

xx: f32

xy: f32

yx: f32

yy: f32

x: f32

y: f32

Implementations

impl Transform

pub const IDENTITY: Transform = _

Identity matrix.

pub fn new(xx: f32, xy: f32, yx: f32, yy: f32, x: f32, y: f32) -> Transform

Creates a new transform.

pub fn translation(x: f32, y: f32) -> Transform

Creates a translation transform.

pub fn rotation(angle: Angle) -> Transform

Creates a rotation transform.

pub fn rotation_about(point: impl Into<Vector>, angle: Angle) -> Transform

Creates a rotation transform around a point.

pub fn scale(x: f32, y: f32) -> Transform

Creates a scale transform.

pub fn skew(x: Angle, y: Angle) -> Transform

Creates a skew transform.

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

Returns a new transform that represents the application of this transform followed by other.

pub fn pre_translate(&self, x: f32, y: f32) -> Transform

Returns a new transform that represents a translation followed by this transform.

pub fn then_translate(&self, x: f32, y: f32) -> Transform

Returns a new transform that represents this transform followed by a translation.

pub fn pre_rotate(&self, angle: Angle) -> Transform

Returns a new transform that represents a rotation followed by this transform.

pub fn then_rotate(&self, angle: Angle) -> Transform

Returns a new transform that represents this transform followed by a rotation.

pub fn pre_scale(&self, x: f32, y: f32) -> Transform

Returns a new transform that represents a scale followed by this transform.

pub fn then_scale(&self, x: f32, y: f32) -> Transform

Returns a new transform that represents this transform followed by a scale.

pub fn determinant(&self) -> f32

Returns the determinant of the transform.

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

Returns the inverse of the transform, if any.

pub fn transform_point(&self, point: Vector) -> Vector

Returns the result of applying this transform to a point.

pub fn transform_vector(&self, vector: Vector) -> Vector

Returns the result of applying this transform to a vector.

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Transform

Returns a copy 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<(), Error>

Formats the value using the given formatter.

impl Default for Transform

fn default() -> Transform

Returns the “default value” for a type.

impl Copy for Transform