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use crate::bounding_volume;
use crate::bounding_volume::{BoundingSphere, HasBoundingVolume};
use crate::math::Isometry;
use crate::shape::ConvexHull;
use na::RealField;

impl<N: RealField> HasBoundingVolume<N, BoundingSphere<N>> for ConvexHull<N> {
    #[inline]
    fn bounding_volume(&self, m: &Isometry<N>) -> BoundingSphere<N> {
        let bv: BoundingSphere<N> = self.local_bounding_volume();
        bv.transform_by(m)
    }

    #[inline]
    fn local_bounding_volume(&self) -> BoundingSphere<N> {
        let (center, radius) = bounding_volume::point_cloud_bounding_sphere(self.points());

        BoundingSphere::new(center, radius)
    }
}