Struct viewport::Viewport [−][src]
Expand description
Stores viewport information.
Fields
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.
Implementations
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
Auto Trait Implementations
impl RefUnwindSafe for Viewport
impl UnwindSafe for Viewport
Blanket Implementations
Mutably borrows from an owned value. Read more