Struct ViewportTransform 

pub struct ViewportTransform {
    pub tx: f64,
    pub ty: f64,
    pub sx: f64,
    pub sy: f64,
    pub rotation: f64,
}

Viewport transformation matrix

Fields

tx: f64

Translation X

ty: f64

Translation Y

sx: f64

Scale X

sy: f64

Scale Y

rotation: f64

Rotation angle in radians

Implementations

impl ViewportTransform

pub const fn new( sx: f64, _shy: f64, _shx: f64, sy: f64, tx: f64, ty: f64, ) -> Self

Creates a new transform with specified parameters (affine matrix form) Parameters: sx, shy, shx, sy, tx, ty (2D affine transform) For simpler cases, use identity(), translate(), scale(), or rotate()

pub const fn identity() -> Self

Creates a new identity transform

pub const fn translate(tx: f64, ty: f64) -> Self

Creates a translation transform

pub const fn scale(sx: f64, sy: f64) -> Self

Creates a scale transform

pub const fn uniform_scale(s: f64) -> Self

Creates a uniform scale transform

pub const fn rotate(rotation: f64) -> Self

Creates a rotation transform

pub fn transform_point(&self, x: f64, y: f64) -> (f64, f64)

Transforms a point

pub fn inverse_transform_point(&self, x: f64, y: f64) -> (f64, f64)

Inverse transforms a point

pub fn compose(&self, other: &Self) -> Self

Composes two transforms

Trait Implementations

impl Clone for ViewportTransform

fn clone(&self) -> ViewportTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewportTransform

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

Formats the value using the given formatter.

impl Default for ViewportTransform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for ViewportTransform

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

impl StructuralPartialEq for ViewportTransform