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.
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.
impl StructuralPartialEq for Viewport[src]
Auto Trait Implementations
impl RefUnwindSafe for Viewport
impl UnwindSafe for Viewport
type Init = T
The type for initializers.
type Owned = T
The resulting type after obtaining ownership.
pub fn clone_into(&self, target: &mut T)[src]
type Error = Infallible
The type returned in the event of a conversion error.