Struct GridTransform 

pub struct GridTransform {
    pub a: i32,
    pub b: i32,
    pub c: i32,
    pub d: i32,
}

Integer 2D grid transform (a 2×2 matrix) used for aligning detected grids to a board model.

This represents a linear transform on integer coordinates: (i', j') = (a*i + b*j, c*i + d*j).

For most calibration targets, valid transforms are the 8 elements of the dihedral group D4 (rotations/reflections on the square grid). Those are provided in GRID_TRANSFORMS_D4.

Fields

a: i32

b: i32

c: i32

d: i32

Implementations

impl GridTransform

pub const IDENTITY: GridTransform

pub fn apply(&self, i: i32, j: i32) -> [i32; 2]

Apply the transform to (i, j).

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

Invert the transform if it is unimodular (det = ±1).

Trait Implementations

impl Clone for GridTransform

fn clone(&self) -> GridTransform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GridTransform

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for GridTransform

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for GridTransform

fn eq(&self, other: &GridTransform) -> 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 Serialize for GridTransform

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for GridTransform

impl Eq for GridTransform

impl StructuralPartialEq for GridTransform