diff options
Diffstat (limited to 'src/geom/angle.rs')
| -rw-r--r-- | src/geom/angle.rs | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/geom/angle.rs b/src/geom/angle.rs index 65270ebd..888442f7 100644 --- a/src/geom/angle.rs +++ b/src/geom/angle.rs @@ -64,51 +64,6 @@ impl Angle { pub fn cos(self) -> f64 { self.to_rad().cos() } - - /// Get the control points for a bezier curve that describes a circular arc - /// of this angle with the given radius. - pub fn bezier_arc( - self, - radius: Length, - rotate: bool, - mirror_x: bool, - mirror_y: bool, - ) -> [Point; 4] { - let end = Point::new(self.cos() * radius - radius, self.sin() * radius); - let center = Point::new(-radius, Length::zero()); - - let mut ts = if mirror_y { - Transform::mirror_y() - } else { - Transform::identity() - }; - - if mirror_x { - ts = ts.pre_concat(Transform::mirror_x()); - } - - if rotate { - ts = ts.pre_concat(Transform::rotate(Angle::deg(90.0))); - } - - let a = center * -1.0; - let b = end - center; - - let q1 = a.x.to_raw() * a.x.to_raw() + a.y.to_raw() * a.y.to_raw(); - let q2 = q1 + a.x.to_raw() * b.x.to_raw() + a.y.to_raw() * b.y.to_raw(); - let k2 = (4.0 / 3.0) * ((2.0 * q1 * q2).sqrt() - q2) - / (a.x.to_raw() * b.y.to_raw() - a.y.to_raw() * b.x.to_raw()); - - let control_1 = Point::new(center.x + a.x - k2 * a.y, center.y + a.y + k2 * a.x); - let control_2 = Point::new(center.x + b.x + k2 * b.y, center.y + b.y - k2 * b.x); - - [ - Point::zero(), - control_1.transform(ts), - control_2.transform(ts), - end.transform(ts), - ] - } } impl Numeric for Angle { |