Enum rlifesrc_lib::Transform

pub enum Transform {
    Id,
    Rotate90,
    Rotate180,
    Rotate270,
    FlipRow,
    FlipCol,
    FlipDiag,
    FlipAntidiag,
}

Transformations (rotations and reflections) after the last generation.

After the last generation, the pattern will return to the first generation, applying this transformation first, and then the translation defined by dx and dy.

8 different values corresponds to 8 elements of the dihedral group D₈.

Id is the identity transformation.

R means rotations around the center of the world. The number after it is the counterclockwise rotation angle in degrees.

F means reflections (flips). The symbol after it is the axis of reflection.

Some of the transformations are only valid when the world is square.

Variants

Id

Id.

Identity transformation.

Rotate90

R90.

90° rotation counterclockwise.

Rotate180

R180.

180° rotation counterclockwise.

Rotate270

R270.

270° rotation counterclockwise.

FlipRow

F-.

Reflection across the middle row.

FlipCol

F|.

Reflection across the middle column.

FlipDiag

F\.

Reflection across the diagonal.

FlipAntidiag

F/.

Reflection across the antidiagonal.

Methods

impl Transform

pub fn square_world(self) -> bool

Whether the transformation requires the world to be square.

Returns true for R90, R270, F\ and F/.

Trait Implementations

impl Clone for Transform

fn clone(&self) -> Transform

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Transform

impl Default for Transform

The default transformation is the Id.

fn default() -> Self

Returns the "default value" for a type.

impl PartialEq<Transform> for Transform

fn eq(&self, other: &Transform) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Debug for Transform

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

Formats the value using the given formatter.

impl FromStr for Transform

type Err = String

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl StructuralPartialEq for Transform