Function classify_angle

src/math.rs:83–97

Classifies a rotation in radians into an [`AngleType`]. Normalises to `[0, 2π)` first, then checks within `EPS` of each cardinal.

(radians: f32)

/// Classifies a rotation in radians into an [`AngleType`].
/// Normalises to `[0, 2π)` first, then checks within `EPS` of each cardinal.
pub fn classify_angle(radians: f32) -> AngleType {
    let normalized = radians.rem_euclid(std::f32::consts::TAU);
    const EPS: f32 = 0.001;
    if normalized < EPS || (std::f32::consts::TAU - normalized) < EPS {
        AngleType::Zero
    } else if (normalized - std::f32::consts::FRAC_PI_2).abs() < EPS {
        AngleType::Right90
    } else if (normalized - std::f32::consts::PI).abs() < EPS {
        AngleType::Straight180
    } else if (normalized - 3.0 * std::f32::consts::FRAC_PI_2).abs() < EPS {
        AngleType::Right270
    } else {
        AngleType::Arbitrary(normalized)
    }
}

use crate::layout::CornerRadius;