Struct Transform 

pub struct Transform {
    pub a: f64,
    pub b: f64,
    pub c: f64,
    pub d: f64,
    pub e: f64,
    pub f: f64,
}

A 2x3 affine transform using the PDF matrix coefficient order.

Points are transformed as x' = a*x + c*y + e and y' = b*x + d*y + f.

Fields

a: f64

b: f64

c: f64

d: f64

e: f64

f: f64

Implementations

impl Transform

pub const IDENTITY: Transform

The affine identity transform.

pub fn rotate_about(degrees: f64, cx: f64, cy: f64) -> Transform

Return a rotation in degrees about (cx, cy).

pub fn then(self, next: Transform) -> Transform

Compose two transforms, applying self first and next second.

pub fn apply(self, point: Point) -> Point

Apply this transform to a point.

pub fn is_identity(self) -> bool

Return whether all six coefficients exactly equal the identity.

pub fn transform_rect_bbox(self, rect: Rect) -> Rect

Return the axis-aligned bounds of the four transformed corners.

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 PartialEq for Transform

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Transform