Struct Trapezoid 

pub struct Trapezoid {
    pub left: f32,
    pub right: f32,
    pub top: [f32; 2],
    pub bottom: [f32; 2],
    pub open_left: bool,
    pub open_right: bool,
}

One vertical slice of a filled path: the area between a top and a bottom edge, each straight, over the columns from left to right.

A side that the next slice of the same fill continues past is shared: a pixel there belongs to the slice whose columns hold its centre, and the side is drawn hard. An open side is part of the fill’s outline, and its pixels take the share of them it covers.

Fields

left: f32

right: f32

top: [f32; 2]

The top edge’s y at left and at right.

bottom: [f32; 2]

The bottom edge’s y at left and at right.

open_left: bool

open_right: bool

Implementations

impl Trapezoid

pub fn bounds(&self) -> Rect

The box of its corners.

pub fn translate(self, dx: f32, dy: f32) -> Self

The slice moved by dx, dy.

pub fn coverage(&self, point: Point) -> f32

The share of the pixel centred at point the slice covers, as the shape stage takes it: half a pixel each way across each edge and each open side. A shared side owns the centres in its columns whole.

Trait Implementations

impl Clone for Trapezoid

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Trapezoid

impl Debug for Trapezoid

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

Formats the value using the given formatter.

impl PartialEq for Trapezoid

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Trapezoid