Struct piston_window::Viewport[][src]

pub struct Viewport {
    pub rect: [i32; 4],
    pub draw_size: [u32; 2],
    pub window_size: [f64; 2],

Stores viewport information.


rect: [i32; 4]

Viewport in pixels. [x, y, width height] where (x, y) is lower left corner.

draw_size: [u32; 2]

The size of frame buffer in pixels.

window_size: [f64; 2]

The size of window in points.


impl Viewport[src]

pub fn abs_transform<T>(&self) -> [[T; 3]; 2] where
    T: Float

Computes absolute transform for 2D graphics, which uses a row major 2x3 matrix. The origin is in the upper left corner of the viewport rectangle. The x axis points to the right, and the y axis points down. The units are in points (window coordinates).

It is assumed that the underlying coordinate system is normalized with the origin in the center, such that (-1.0, 1.0) in the underlying coordinate system corresponds to the upper left corner of the viewport.

Trait Implementations

impl Clone for Viewport[src]

impl Copy for Viewport[src]

impl Debug for Viewport[src]

impl PartialEq<Viewport> for Viewport[src]

impl StructuralPartialEq for Viewport[src]

Auto Trait Implementations

impl RefUnwindSafe for Viewport

impl Send for Viewport

impl Sync for Viewport

impl Unpin for Viewport

impl UnwindSafe for Viewport

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> Pointable for T[src]

type Init = T

The type for initializers.

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.