Struct FocusRing 

pub struct FocusRing {
    pub radius_x: f32,
    pub radius_y: f32,
    pub offset_x: f32,
    pub offset_y: f32,
}

A focus ring modeled as an axis-aligned ellipse in Field coordinates, with an offset relative to the viewport center.

We use normalized ellipse distance: d2 = (x/rx)^2 + (y/ry)^2 If d2 <= 1 => inside.

Fields

radius_x: f32

radius_y: f32

offset_x: f32

offset_y: f32

Implementations

impl FocusRing

pub fn new(radius_x: f32, radius_y: f32, offset_x: f32, offset_y: f32) -> Self

pub fn contains(&self, center: Vec2, p: Vec2) -> bool

pub fn zone(&self, vp_center: Vec2, p: Vec2) -> FocusZone

pub fn normalized_distance2(&self, center: Vec2, p: Vec2) -> f32

Return normalized squared distance inside this ellipse: d2 = (x/rx)^2 + (y/ry)^2

• d2 <= 1.0: inside/on boundary
• d2 > 1.0: outside

Trait Implementations

impl Clone for FocusRing

fn clone(&self) -> FocusRing

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FocusRing

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

Formats the value using the given formatter.

impl PartialEq for FocusRing

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

impl StructuralPartialEq for FocusRing