Macro embedded_graphics::egtriangle
source · [−]macro_rules! egtriangle {
(points = $points:expr $(,)?) => { ... };
(points = $points:expr, style = $style:expr $(,)?) => { ... };
}
Expand description
Create a Triangle
with optional styling using a
convenient macro.
use embedded_graphics::{
egtriangle,
pixelcolor::Rgb565,
prelude::*,
primitive_style,
primitives::Triangle,
style::{PrimitiveStyle, Styled},
};
let empty_triangle: Styled<Triangle, PrimitiveStyle<Rgb565>> =
egtriangle!(points = [(10, 20), (30, 40), (50, 60)]);
let filled_triangle: Styled<Triangle, PrimitiveStyle<Rgb565>> = egtriangle!(
points = [(10, 20), (30, 40), (50, 60)],
style = primitive_style!(stroke_color = Rgb565::RED, fill_color = Rgb565::GREEN)
);
Style properties like stroke_color
map to methods on the PrimitiveStyleBuilder
struct.
For example, the following code makes two identical triangles:
use embedded_graphics::{
egtriangle,
pixelcolor::Rgb565,
prelude::*,
primitive_style,
primitives::Triangle,
style::{PrimitiveStyle, PrimitiveStyleBuilder, Styled},
};
let triangle_1: Styled<Triangle, PrimitiveStyle<Rgb565>> = egtriangle!(
points = [(10, 20), (30, 40), (50, 60)],
style = primitive_style!(
stroke_color = Rgb565::RED,
fill_color = Rgb565::GREEN,
stroke_width = 1
)
);
let style = PrimitiveStyleBuilder::new()
.fill_color(Rgb565::GREEN)
.stroke_color(Rgb565::RED)
.stroke_width(1)
.build();
let triangle_2: Styled<Triangle, PrimitiveStyle<Rgb565>> =
Triangle::new(Point::new(10, 20), Point::new(30, 40), Point::new(50, 60))
.into_styled(style);
assert_eq!(triangle_1, triangle_2);