Trait nannou_core::color::GetHue
source · pub trait GetHue {
type Hue;
// Required method
fn get_hue(&self) -> Option<Self::Hue>;
}
Expand description
A trait for colors where a hue may be calculated.
use palette::{GetHue, LinSrgb};
let red = LinSrgb::new(1.0f32, 0.0, 0.0);
let green = LinSrgb::new(0.0f32, 1.0, 0.0);
let blue = LinSrgb::new(0.0f32, 0.0, 1.0);
let gray = LinSrgb::new(0.5f32, 0.5, 0.5);
assert_eq!(red.get_hue(), Some(0.0.into()));
assert_eq!(green.get_hue(), Some(120.0.into()));
assert_eq!(blue.get_hue(), Some(240.0.into()));
assert_eq!(gray.get_hue(), None);