Struct CoordTransform 

pub struct CoordTransform { /* private fields */ }

A 2D affine transformation stored as a 2×3 matrix.

The transformation is applied as:

x' = a*x + b*y + c
y' = d*x + e*y + f

where matrix = [a, b, c, d, e, f].

Implementations

impl CoordTransform

pub const fn identity() -> Self

Creates the identity transform.

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

Creates a uniform scale transform.

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

Creates a translation transform.

pub fn rotate(angle_radians: f64) -> Self

Creates a counter-clockwise rotation transform.

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

Composes self followed by other into a single transform.

The result applies self first, then other. Mathematically this is other_matrix × self_matrix because affine transforms are applied right-to-left in column-vector notation.

pub fn apply(&self, p: Point2D) -> Point2D

Applies the transform to a 2D point.

pub fn apply3d(&self, p: Point3D) -> Point3D

Applies the 2D transform to a 3D point, passing the Z coordinate through unchanged.

Trait Implementations

impl Clone for CoordTransform

fn clone(&self) -> CoordTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CoordTransform

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

Formats the value using the given formatter.

impl PartialEq for CoordTransform

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

impl StructuralPartialEq for CoordTransform