3D Ray More...
#include <ray_3d.h>
Public Member Functions | |
| const TPoint & | support () const |
| return origin of ray. | |
| TPoint & | support () |
| access origin of ray the origin is also the support point of the ray. | |
| const TVector & | direction () const |
| Return direction of ray. | |
| void | setDirection (const TVector &iDirection) |
| Set direction and normalize it if that's the policy. | |
| void | lookAt (const TPoint &iLookAt) |
| Set direction from origin to look-at point. | |
| const TPoint | point (TParam a_t) const |
| Return point on ray by it's parameter. | |
| const TValue | t (const TPoint &iPoint) const |
| Return parameter of point on the ray that is the projection of the given point. | |
| const TVector | project (const TVector &iVector) const |
| Project vector on the axis of the ray. | |
| const TVector | reject (const TVector &iVector) const |
| Reject vector against the axis of the ray. | |
| const TVector | reflect (const TVector &iVector) const |
| Reflect vector against the axis of the ray. | |
| const TPoint | project (const TPoint &iPoint) const |
| Project point on the axis of the ray. | |
| const TVector | reject (const TPoint &iPoint) const |
| Reject point against the axis of the ray. | |
| const TPoint | reflect (const TPoint &iPoint) const |
| Reject point against the axis of the ray. | |
| bool | isValid () const |
| Return true if ray is valid (direction isn't a zero vector). | |
Related Symbols | |
(Note that these are not member symbols.) | |
| template<typename T, typename MMPAabb, typename NPRay, typename PPRay> | |
| Result | intersect (const Aabb3D< T, MMPAabb > &aabb, const Ray3D< T, NPRay, PPRay > &ray, T &t, const T &tMin=T()) |
| Find the intersection of an AABB and ray by their parameter t on the ray. | |
| template<typename T, typename MMPAabb, typename NPRay, typename PPRay> | |
| Result | intersect (const Aabb3D< T, MMPAabb > &aabb, const Ray3D< T, NPRay, PPRay > &ray, const Vector3D< T > &invDirection, T &t, const T &tMin=T()) |
| Find the intersection of an AABB and ray by their parameter t on the ray. | |
| template<typename T, class EPPlane, class NPPlane, class NPRay, class PPRay> | |
| Result | intersect (const Plane3D< T, EPPlane, NPPlane > &plane, const Ray3D< T, NPRay, PPRay > &ray, T &t, const T &tMin=T()) |
| Find the intersection of a plane and ray by their parameter t on the ray. | |
Detailed Description
class lass::prim::Ray3D< T, NormalizingPolicy, ParameterPolicy >
3D Ray
- Date
- 2003
Member Function Documentation
◆ support()
| const Ray3D< T, NP, PP >::TPoint & lass::prim::Ray3D< T, NP, PP >::support | ( | ) | const |
return origin of ray.
the origin is also the support point of the ray.
Definition at line 118 of file ray_3d.inl.
References support().
Referenced by lass::prim::Parallelogram3D< U >::intersect(), intersect(), intersect(), intersect(), lass::prim::Triangle3D< U >::intersect(), lass::prim::Triangle3D< U >::intersect(), support(), support(), lass::prim::Transformation3D< U >::transform(), and lass::prim::Transformation3D< U >::transform().
◆ point()
|
inline |
Return point on ray by it's parameter.
- Exceptions
-
throw an error if parameter is out of range t >= 0, if Bounded is used as ParameterPolicy.
- Returns
- origin + t * direction
Definition at line 177 of file ray_3d.inl.
Referenced by lass::prim::SimplePolygon3D< U, PlaneEquationPolicy, PlaneNormalizingPolicy >::intersect(), point(), and t().
◆ t()
|
inline |
Friends And Related Symbol Documentation
◆ intersect() [1/3]
|
Find the intersection of an AABB and ray by their parameter t on the ray.
- Parameters
-
aabb [in] the AABB ray [in] the ray tMin [in] the minimum t that may be returned as valid intersection. t [out] the parameter of the intersection point > tMin.
- Returns
- rNone no intersections with t > tMin found t is not assigned.
- rOne a intersection with t > tMin is found t is assigned.
Definition at line 72 of file aabb_3d_ray_3d.h.
◆ intersect() [2/3]
|
Find the intersection of an AABB and ray by their parameter t on the ray.
This version accepts a precomputed reciprocal of the ray direction (1/x, 1/y, 1/z). This is useful when you do many intersections with the same ray, so the reciprocal needs only to be computed once.
- Parameters
-
aabb [in] the AABB ray [in] the ray invDirection [in] the reciprocal of the ray direction tMin [in] the minimum t that may be returned as valid intersection. t [out] the parameter of the intersection point > tMin.
- Returns
- rNone no intersections with t > tMin found t is not assigned.
- rOne a intersection with t > tMin is found t is assigned.
Definition at line 131 of file aabb_3d_ray_3d.h.
◆ intersect() [3/3]
|
Find the intersection of a plane and ray by their parameter t on the ray.
- Parameters
-
plane [in] the plane ray [in] the ray t [out] the parameter of the intersection point > tMin. tMin [in] the minimum t that may be returned as valid intersection.
- Returns
- rNone no intersections > tMin found t is not assigned.
- rOne exactly one intersection > tMin found t represents it.
- rInfinite infinite many intersections found (ray is coincident with plane), t is not assigned.
- rInvalid plane or ray is invalid, no intersection. t is not assigned.
Definition at line 74 of file plane_3d_ray_3d.h.
The documentation for this class was generated from the following files:
