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Implemented Bound for Sphere

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This commit is contained in:
Dzmitry Malyshau 2015-03-12 23:02:39 +03:00
parent e71887a848
commit 2722815d84
1 changed files with 14 additions and 0 deletions
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14
src/bound.rs
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@ -19,6 +19,7 @@ use aabb::{Aabb, Aabb3};
use num::BaseNum; use num::BaseNum;
use plane::Plane; use plane::Plane;
use point::{Point, Point3}; use point::{Point, Point3};
use sphere::Sphere;
/// Spatial relation between two objects. /// Spatial relation between two objects.
pub enum Relation { pub enum Relation {
@ -58,3 +59,16 @@ impl<S: BaseNum> Bound<S> for Aabb3<S> {
} }
} }
} }
impl<S: BaseNum> Bound<S> for Sphere<S> {
fn relate(&self, plane: &Plane<S>) -> Relation {
let dist = self.center.dot(&plane.n) - plane.d;
if dist > self.radius {
Relation::In
}else if dist < - self.radius {
Relation::Out
}else {
Relation::Cross
}
}
}