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#ifndef VECGEOM_VOLUMES_SPHEREUTILITIES_H_
#define VECGEOM_VOLUMES_SPHEREUTILITIES_H_
#include "VecGeom/base/Global.h"
#ifndef VECCORE_CUDA
#include "VecGeom/base/RNG.h"
#endif
#include "VecGeom/base/Global.h"
#include "VecGeom/volumes/Wedge_Evolution.h"
#include "VecGeom/base/Vector3D.h"
#include "VecGeom/volumes/SphereStruct.h"
#include "VecGeom/volumes/kernel/GenericKernels.h"
#include <cstdio>
namespace vecgeom {
inline namespace VECGEOM_IMPL_NAMESPACE {
class UnplacedSphere;
template <typename T>
struct SphereStruct;
template <typename T>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
T sqr(T x)
{
return x * x;
}
#ifndef VECCORE_CUDA
// Generate radius in annular ring according to uniform area
template <typename T>
VECGEOM_FORCE_INLINE
T GetRadiusInRing(T rmin, T rmax)
{
if (rmin == rmax) return rmin;
T rng(RNG::Instance().uniform(0.0, 1.0));
if (rmin <= T(0.0)) return rmax * Sqrt(rng);
T rmin2 = rmin * rmin;
T rmax2 = rmax * rmax;
return Sqrt(rng * (rmax2 - rmin2) + rmin2);
}
#endif
namespace SphereUtilities {
using UnplacedStruct_t = SphereStruct<Precision>;
template <class Real_v>
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnInnerRadius(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
auto mag2 = point.Mag2();
return mag2 <= MakePlusTolerantSquare<true>(unplaced.fRmin) &&
mag2 >= MakeMinusTolerantSquare<true>(unplaced.fRmin);
}
template <class Real_v>
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnOuterRadius(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
auto mag2 = point.Mag2();
return mag2 <= MakePlusTolerantSquare<true>(unplaced.fRmax) &&
mag2 >= MakeMinusTolerantSquare<true>(unplaced.fRmax);
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnStartPhi(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
return unplaced.fPhiWedge.IsOnSurfaceGeneric<Real_v>(unplaced.fPhiWedge.GetAlong1(), unplaced.fPhiWedge.GetNormal1(),
point);
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnEndPhi(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
return unplaced.fPhiWedge.IsOnSurfaceGeneric<Real_v>(unplaced.fPhiWedge.GetAlong2(), unplaced.fPhiWedge.GetNormal2(),
point);
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnStartTheta(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
return unplaced.fThetaCone.IsOnSurfaceGeneric<Real_v, true>(point);
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnEndTheta(UnplacedStruct_t const &unplaced, Vector3D<Real_v> const &point)
{
return unplaced.fThetaCone.IsOnSurfaceGeneric<Real_v, false>(point);
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsCompletelyOutside(UnplacedStruct_t const &unplaced,
Vector3D<Real_v> const &localPoint)
{
using Bool_v = vecCore::Mask_v<Real_v>;
Real_v rad = localPoint.Mag();
Bool_v outsideRadiusRange = (rad > (unplaced.fRmax + kTolerance)) || (rad < (unplaced.fRmin - kTolerance));
Bool_v outsidePhiRange(false), insidePhiRange(false);
unplaced.fPhiWedge.GenericKernelForContainsAndInside<Real_v, true>(localPoint, insidePhiRange, outsidePhiRange);
Bool_v outsideThetaRange = unplaced.fThetaCone.IsCompletelyOutside<Real_v>(localPoint);
Bool_v completelyoutside = outsideRadiusRange || outsidePhiRange || outsideThetaRange;
return completelyoutside;
}
template <class Real_v>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsCompletelyInside(UnplacedStruct_t const &unplaced,
Vector3D<Real_v> const &localPoint)
{
using Bool_v = vecCore::Mask_v<Real_v>;
Real_v rad = localPoint.Mag();
Bool_v insideRadiusRange = (rad < (unplaced.fRmax - kTolerance)) && (rad > (unplaced.fRmin + kTolerance));
Bool_v outsidePhiRange(false), insidePhiRange(false);
unplaced.fPhiWedge.GenericKernelForContainsAndInside<Real_v, true>(localPoint, insidePhiRange, outsidePhiRange);
Bool_v insideThetaRange = unplaced.fThetaCone.IsCompletelyInside<Real_v>(localPoint);
Bool_v completelyinside = insideRadiusRange && insidePhiRange && insideThetaRange;
return completelyinside;
}
template <class Real_v, bool ForInnerRadius, bool MovingOut>
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnRadialSurfaceAndMovingOut(UnplacedStruct_t const &unplaced,
Vector3D<Real_v> const &point,
Vector3D<Real_v> const &dir)
{
// Rays from rmax+tolerance or rmin-tolerance can be moving out even if not going fully "backward"
if (MovingOut) {
if (ForInnerRadius) {
return IsPointOnInnerRadius<Real_v>(unplaced, point) && (dir.Dot(-point) > Real_v(kSqrtTolerance));
} else {
return IsPointOnOuterRadius<Real_v>(unplaced, point) && (dir.Dot(point) > Real_v(kSqrtTolerance));
}
} else {
if (ForInnerRadius) {
return IsPointOnInnerRadius<Real_v>(unplaced, point) && (dir.Dot(-point) < Real_v(-kSqrtTolerance));
} else
return IsPointOnOuterRadius<Real_v>(unplaced, point) && (dir.Dot(point) < Real_v(-kSqrtTolerance));
}
}
template <class Real_v, bool MovingOut>
VECGEOM_FORCE_INLINE
VECCORE_ATT_HOST_DEVICE
typename vecCore::Mask_v<Real_v> IsPointOnSurfaceAndMovingOut(UnplacedStruct_t const &unplaced,
Vector3D<Real_v> const &point,
Vector3D<Real_v> const &dir)
{
using Bool_v = vecCore::Mask_v<Real_v>;
Bool_v tempOuterRad = IsPointOnRadialSurfaceAndMovingOut<Real_v, false, MovingOut>(unplaced, point, dir);
Bool_v tempInnerRad(false), tempStartPhi(false), tempEndPhi(false), tempStartTheta(false), tempEndTheta(false);
if (unplaced.fRmin) tempInnerRad = IsPointOnRadialSurfaceAndMovingOut<Real_v, true, MovingOut>(unplaced, point, dir);
if (unplaced.fDPhi < (kTwoPi - kHalfTolerance)) {
tempStartPhi = unplaced.fPhiWedge.IsPointOnSurfaceAndMovingOut<Real_v, true, MovingOut>(point, dir);
tempEndPhi = unplaced.fPhiWedge.IsPointOnSurfaceAndMovingOut<Real_v, false, MovingOut>(point, dir);
}
if (unplaced.fDTheta < (kPi - kHalfTolerance)) {
tempStartTheta = unplaced.fThetaCone.IsPointOnSurfaceAndMovingOut<Real_v, true, MovingOut>(point, dir);
tempEndTheta = unplaced.fThetaCone.IsPointOnSurfaceAndMovingOut<Real_v, false, MovingOut>(point, dir);
}
Bool_v isPointOnSurfaceAndMovingOut =
((tempOuterRad || tempInnerRad) && unplaced.fPhiWedge.Contains<Real_v>(point) &&
unplaced.fThetaCone.Contains<Real_v>(point)) ||
((tempStartPhi || tempEndPhi) && (point.Mag2() >= unplaced.fRmin * unplaced.fRmin) &&
(point.Mag2() <= unplaced.fRmax * unplaced.fRmax) && unplaced.fThetaCone.Contains<Real_v>(point)) ||
((tempStartTheta || tempEndTheta) && (point.Mag2() >= unplaced.fRmin * unplaced.fRmin) &&
(point.Mag2() <= unplaced.fRmax * unplaced.fRmax) && unplaced.fPhiWedge.Contains<Real_v>(point));
return isPointOnSurfaceAndMovingOut;
}
} // namespace SphereUtilities
} // namespace VECGEOM_IMPL_NAMESPACE
} // namespace vecgeom
#endif // VECGEOM_VOLUMES_SPHEREUTILITIES_H_
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