Struct PerspectiveMatrix 

pub struct PerspectiveMatrix {
    pub data: [[f64; 3]; 3],
}

A 3×3 homogeneous perspective (projective) transform matrix stored in row-major order.

The matrix maps homogeneous image coordinates (x, y, 1)ᵀ to new coordinates via (x', y', w')ᵀ = M · (x, y, 1)ᵀ. The Cartesian result is (x'/w', y'/w').

Fields

data: [[f64; 3]; 3]

Row-major 3×3 elements: [[a,b,c],[d,e,f],[g,h,i]].

Implementations

impl PerspectiveMatrix

pub fn from_array(m: [f64; 9]) -> Self

Create from a flat row-major array of 9 elements.

pub fn identity() -> Self

Identity perspective matrix (no transform).

pub fn project(&self, x: f64, y: f64) -> Option<(f64, f64)>

Apply this matrix to a point (x, y) and return the projected result.

Returns None if the homogeneous weight w is too close to zero (the point maps to infinity).

pub fn inverse(&self) -> Option<Self>

Compute the inverse of this matrix using Cramer’s rule.

Returns None if the matrix is singular.

Trait Implementations

impl Clone for PerspectiveMatrix

fn clone(&self) -> PerspectiveMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PerspectiveMatrix

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

Formats the value using the given formatter.

impl Default for PerspectiveMatrix

fn default() -> Self

Returns the “default value” for a type.

impl Copy for PerspectiveMatrix