forked from M-Labs/nalgebra
173 lines
5.0 KiB
Rust
173 lines
5.0 KiB
Rust
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#![cfg(feature = "arbitrary")]
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#![allow(non_snake_case)]
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use na::{
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Isometry3, Point3, Translation3, UnitQuaternion, UnitDualQuaternion, Vector3,
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};
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quickcheck!(
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fn isometry_equivalence(iso: Isometry3<f64>, p: Point3<f64>, v: Vector3<f64>) -> bool {
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let dq = UnitDualQuaternion::from_isometry(&iso);
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relative_eq!(iso * p, dq * p, epsilon = 1.0e-7)
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&& relative_eq!(iso * v, dq * v, epsilon = 1.0e-7)
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}
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fn inverse_is_identity(i: UnitDualQuaternion<f64>, p: Point3<f64>, v: Vector3<f64>) -> bool {
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let ii = i.inverse();
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relative_eq!(i * ii, UnitDualQuaternion::identity(), epsilon = 1.0e-7)
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&& relative_eq!(ii * i, UnitDualQuaternion::identity(), epsilon = 1.0e-7)
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&& relative_eq!((i * ii) * p, p, epsilon = 1.0e-7)
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&& relative_eq!((ii * i) * p, p, epsilon = 1.0e-7)
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&& relative_eq!((i * ii) * v, v, epsilon = 1.0e-7)
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&& relative_eq!((ii * i) * v, v, epsilon = 1.0e-7)
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}
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fn multiply_equals_alga_transform(
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dq: UnitDualQuaternion<f64>, v: Vector3<f64>, p: Point3<f64>
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) -> bool {
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dq * v == dq.transform_vector(&v)
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&& dq * p == dq.transform_point(&p)
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&& relative_eq!(
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dq.inverse() * v,
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dq.inverse_transform_vector(&v),
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epsilon = 1.0e-7
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)
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&& relative_eq!(
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dq.inverse() * p,
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dq.inverse_transform_point(&p),
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epsilon = 1.0e-7
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)
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}
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#[cfg_attr(rustfmt, rustfmt_skip)]
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fn composition(
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dq: UnitDualQuaternion<f64>,
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uq: UnitQuaternion<f64>,
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t: Translation3<f64>,
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v: Vector3<f64>,
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p: Point3<f64>
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) -> bool {
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// (rotation × dual quaternion) * point = rotation × (dual quaternion * point)
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relative_eq!((uq * dq) * v, uq * (dq * v), epsilon = 1.0e-7) &&
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relative_eq!((uq * dq) * p, uq * (dq * p), epsilon = 1.0e-7) &&
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// (dual quaternion × rotation) * point = dual quaternion × (rotation * point)
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relative_eq!((dq * uq) * v, dq * (uq * v), epsilon = 1.0e-7) &&
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relative_eq!((dq * uq) * p, dq * (uq * p), epsilon = 1.0e-7) &&
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// (translation × dual quaternion) * point = translation × (dual quaternion * point)
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relative_eq!((t * dq) * v, (dq * v), epsilon = 1.0e-7) &&
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relative_eq!((t * dq) * p, t * (dq * p), epsilon = 1.0e-7) &&
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// (dual quaternion × translation) * point = dual quaternion × (translation * point)
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relative_eq!((dq * t) * v, dq * v, epsilon = 1.0e-7) &&
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relative_eq!((dq * t) * p, dq * (t * p), epsilon = 1.0e-7)
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}
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#[cfg_attr(rustfmt, rustfmt_skip)]
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fn all_op_exist(
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dq: UnitDualQuaternion<f64>,
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uq: UnitQuaternion<f64>,
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t: Translation3<f64>,
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v: Vector3<f64>,
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p: Point3<f64>
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) -> bool {
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let iMi = dq * dq;
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let iMuq = dq * uq;
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let iDi = dq / dq;
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let iDuq = dq / uq;
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let iMp = dq * p;
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let iMv = dq * v;
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let iMt = dq * t;
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let tMi = t * dq;
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let tMuq = t * uq;
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let uqMi = uq * dq;
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let uqDi = uq / dq;
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let uqMt = uq * t;
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let mut iMt1 = dq;
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let mut iMt2 = dq;
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let mut iMi1 = dq;
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let mut iMi2 = dq;
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let mut iMuq1 = dq;
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let mut iMuq2 = dq;
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let mut iDi1 = dq;
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let mut iDi2 = dq;
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let mut iDuq1 = dq;
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let mut iDuq2 = dq;
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iMt1 *= t;
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iMt2 *= &t;
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iMi1 *= dq;
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iMi2 *= &dq;
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iMuq1 *= uq;
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iMuq2 *= &uq;
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iDi1 /= dq;
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iDi2 /= &dq;
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iDuq1 /= uq;
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iDuq2 /= &uq;
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iMt == iMt1
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&& iMt == iMt2
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&& iMi == iMi1
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&& iMi == iMi2
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&& iMuq == iMuq1
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&& iMuq == iMuq2
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&& iDi == iDi1
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&& iDi == iDi2
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&& iDuq == iDuq1
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&& iDuq == iDuq2
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&& iMi == &dq * &dq
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&& iMi == dq * &dq
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&& iMi == &dq * dq
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&& iMuq == &dq * &uq
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&& iMuq == dq * &uq
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&& iMuq == &dq * uq
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&& iDi == &dq / &dq
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&& iDi == dq / &dq
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&& iDi == &dq / dq
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&& iDuq == &dq / &uq
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&& iDuq == dq / &uq
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&& iDuq == &dq / uq
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&& iMp == &dq * &p
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&& iMp == dq * &p
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&& iMp == &dq * p
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&& iMv == &dq * &v
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&& iMv == dq * &v
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&& iMv == &dq * v
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&& iMt == &dq * &t
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&& iMt == dq * &t
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&& iMt == &dq * t
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&& tMi == &t * &dq
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&& tMi == t * &dq
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&& tMi == &t * dq
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&& tMuq == &t * &uq
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&& tMuq == t * &uq
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&& tMuq == &t * uq
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&& uqMi == &uq * &dq
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&& uqMi == uq * &dq
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&& uqMi == &uq * dq
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&& uqDi == &uq / &dq
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&& uqDi == uq / &dq
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&& uqDi == &uq / dq
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&& uqMt == &uq * &t
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&& uqMt == uq * &t
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&& uqMt == &uq * t
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}
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);
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