Enum Region 

pub enum Region {
    Full,
    Rectangle {
        x: usize,
        y: usize,
        width: usize,
        height: usize,
    },
}

Represents subregion of image.

Variants

Full

Rectangle

Fields

x: usize

y: usize

width: usize

height: usize

Implementations

impl Region

pub fn full() -> Self

Create new Region that covers the whole image.

pub fn rectangle_normalized( topleft: (usize, usize), dims: (usize, usize), ) -> Self

Create new partial Region with normalized width and height.

If the width or height is less than 2, it will be set to 2 to produce a region that is valid when used with the NPP API.

Arguments

• topleft - Coordinates of top left corner of the region.
• dims - Dimensions of the region.

pub fn resolve_to_xywh( &self, width: usize, height: usize, ) -> (usize, usize, usize, usize)

Resolve the actual values for x, y, width and height of the box, even if when it is Region::Full. To compute these, the outer width and height are required.

Arguments

• width - Outer width.
• height - Outer height.

Return value

Region coordinates x, y, width and height.

pub fn is_full(&self) -> bool

Whether or not the region is of type Region::Full.

Trait Implementations

impl Clone for Region

fn clone(&self) -> Region

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Region

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

Formats the value using the given formatter.

impl Default for Region

fn default() -> Region

Returns the “default value” for a type.

impl Display for Region

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

Formats the value using the given formatter.

impl PartialEq for Region

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

impl StructuralPartialEq for Region