Struct Camera 

pub struct Camera {
    pub center: Pos2,
    pub zoom: f32,
}

A graph scene camera, independent of the viewport size.

Fields

center: Pos2

The point in graph space at the centre of the view.

zoom: f32

The zoom factor in screen points per graph unit. 1.0 shows one graph unit per point (i.e. no scaling).

Implementations

impl Camera

pub fn to_scene_rect(self, viewport: Vec2) -> Rect

The visible egui::Rect (in graph space) this camera maps to for a viewport of the given size: a viewport / zoom sized rect centred on Camera::center. egui’s Scene fits this rect back into the viewport, reproducing exactly zoom points per graph unit.

pub fn from_scene_rect(rect: Rect, viewport: Vec2) -> Self

Recover the camera from a scene_rect and the viewport it was fit into. The inverse of Camera::to_scene_rect (exact when the rect shares the viewport’s aspect ratio, which holds once egui’s Scene has fit it).

Trait Implementations

impl Clone for Camera

fn clone(&self) -> Camera

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Camera

impl Debug for Camera

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

Formats the value using the given formatter.

impl Default for Camera

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Camera

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Camera

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Camera

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Camera