Enum Orientation

pub enum Orientation {
    Normal,
    HorizontalFlip,
    Rotate180,
    VerticalFlip,
    Transpose,
    Rotate90,
    Transverse,
    Rotate270,
    Unknown,
}

Possible orientations of an image

Values are taken from the IFD tag Orientation (0x0112) in most cases but they can be obtained from other metadata in the file.

Variants

Normal

HorizontalFlip

Rotate180

VerticalFlip

Transpose

Rotate90

Transverse

Rotate270

Unknown

Implementations

impl Orientation

pub fn from_u16(orientation: u16) -> Orientation

Convert a u16 from the IFD tag Orientation (0x0112) into its corresponding enum value

pub fn to_flips(&self) -> (bool, bool, bool)

Convert orientation to an image flip operation tuple. The first field is if x and y coordinates should be swapped (transposed). The second and third field is horizontal and vertical flipping respectively. For a correct result, flipping must be done before transposing.

pub fn from_flips(flips: (bool, bool, bool)) -> Self

Does the opposite of to_flips()

pub fn to_u16(&self) -> u16

Convert orientation to the Tiff Orientation value

Trait Implementations

impl Clone for Orientation

fn clone(&self) -> Orientation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Orientation

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

Formats the value using the given formatter.

impl Hash for Orientation

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Orientation

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

impl Eq for Orientation

impl StructuralPartialEq for Orientation