Struct HomographyMatrix 

pub struct HomographyMatrix {
    pub data: [f64; 9],
}

A 3x3 homography matrix stored in row-major order.

Fields

data: [f64; 9]

Elements in row-major order: [h00, h01, h02, h10, h11, h12, h20, h21, h22]

Implementations

impl HomographyMatrix

pub fn new(data: [f64; 9]) -> Self

Create a new homography from 9 row-major elements.

pub fn identity() -> Self

Create the identity homography.

pub fn get(&self, row: usize, col: usize) -> f64

Access element at (row, col).

pub fn set(&mut self, row: usize, col: usize, value: f64)

Set element at (row, col).

pub fn determinant(&self) -> f64

Compute the determinant of the 3x3 matrix.

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

Return the inverse homography, or None if singular.

pub fn normalize(&mut self)

Normalize the matrix so that h22 == 1.0 (when possible).

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

Multiply two homography matrices.

pub fn condition_number_approx(&self) -> Option<f64>

Estimate the condition number as max_singular / min_singular approximated via the Frobenius norm and the inverse Frobenius norm.

Trait Implementations

impl Clone for HomographyMatrix

fn clone(&self) -> HomographyMatrix

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HomographyMatrix

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

Formats the value using the given formatter.

impl PartialEq for HomographyMatrix

fn eq(&self, other: &HomographyMatrix) -> 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 StructuralPartialEq for HomographyMatrix