parry3d/bounding_volume/
bounding_sphere_cylinder.rs

1use crate::bounding_volume::BoundingSphere;
2use crate::math::{Isometry, Point, Real};
3use crate::shape::Cylinder;
4use na::ComplexField;
5
6impl Cylinder {
7    /// Computes the world-space bounding sphere of this cylinder, transformed by `pos`.
8    #[inline]
9    pub fn bounding_sphere(&self, pos: &Isometry<Real>) -> BoundingSphere {
10        let bv: BoundingSphere = self.local_bounding_sphere();
11        bv.transform_by(pos)
12    }
13
14    /// Computes the local-space bounding sphere of this cylinder.
15    #[inline]
16    pub fn local_bounding_sphere(&self) -> BoundingSphere {
17        let radius =
18            ComplexField::sqrt(self.radius * self.radius + self.half_height * self.half_height);
19
20        BoundingSphere::new(Point::origin(), radius)
21    }
22}