Base class for a flat parallel geometry.

The parallel geometry can be composed by both normal volumes added using the AddNode interface (not implemented yet) or by physical nodes which will use as position their actual global matrix with respect to the top volume of the main geometry.

All these nodes are added as daughters to the "top" volume of the parallel world which acts as a navigation helper in this parallel world. The parallel world has to be closed before calling any navigation method.

Definition at line 23 of file TGeoParallelWorld.h.

Classes
struct	SafetyVoxelInfo

Public Types
enum class	AccelerationMode { kVoxelFinder , kBVH }

Public Types inherited from TObject
enum	{ kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 , kBitMask = 0x00ffffff }

enum	{ kSingleKey = (1ULL << ( 0 )) , kOverwrite = (1ULL << ( 1 )) , kWriteDelete = (1ULL << ( 2 )) }

enum	EDeprecatedStatusBits { kObjInCanvas = (1ULL << ( 3 )) }

enum	EStatusBits { kCanDelete = (1ULL << ( 0 )) , kMustCleanup = (1ULL << ( 3 )) , kIsReferenced = (1ULL << ( 4 )) , kHasUUID = (1ULL << ( 5 )) , kCannotPick = (1ULL << ( 6 )) , kNoContextMenu = (1ULL << ( 8 )) , kInvalidObject = (1ULL << ( 13 )) }

Public Member Functions
	TGeoParallelWorld ()

	TGeoParallelWorld (const char name, TGeoManager mgr)
	Default constructor.

	~TGeoParallelWorld () override
	Destructor.

void	AddNode (const char *path)
	Add a node normally to this world. Overlapping nodes not allowed.

void	AddOverlap (const char *volname, Bool_t activate=kTRUE)
	To use this optimization, the user should declare the full list of volumes which may overlap with any of the physical nodes of the parallel world.

void	AddOverlap (TGeoVolume *vol, Bool_t activate=kTRUE)
	To use this optimization, the user should declare the full list of volumes which may overlap with any of the physical nodes of the parallel world.

void	BuildBVH ()
	Build the BVH acceleration structure.

bool	CheckBVH (void *, size_t) const
	Check/validate the BVH acceleration structure.

void	CheckOverlaps (Double_t ovlp=0.001)
	Check overlaps within a tolerance value.

Bool_t	CloseGeometry ()
	The main geometry must be closed.

void	Draw (Option_t *option) override
	Draw the parallel world.

TGeoPhysicalNode *	FindNextBoundary (Double_t point[3], Double_t dir[3], Double_t &step, Double_t stepmax=1.E30)

TGeoPhysicalNode *	FindNode (Double_t point[3])

AccelerationMode const &	GetAccelerationMode () const

TGeoManager *	GetGeometry () const

TGeoVolume *	GetVolume () const

TClass *	IsA () const override

Bool_t	IsClosed () const

Bool_t	IsUsingOverlaps () const

void	PrintBVH () const
	Prints the BVH.

Int_t	PrintDetectedOverlaps () const
	Print the overlaps which were detected during real tracking.

void	RefreshPhysicalNodes ()
	Refresh the node pointers and re-voxelize.

void	ResetOverlaps () const
	Reset overlapflag for all volumes in geometry.

Double_t	Safety (Double_t point[3], Double_t safmax=1.E30)

void	SetAccelerationMode (AccelerationMode const &mode)

void	SetUseOverlaps (Bool_t flag)

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TNamed
	TNamed ()

	TNamed (const char name, const char title)

	TNamed (const TNamed &named)
	TNamed copy ctor.

	TNamed (const TString &name, const TString &title)

virtual	~TNamed ()
	TNamed destructor.

void	Clear (Option_t *option="") override
	Set name and title to empty strings ("").

TObject *	Clone (const char *newname="") const override
	Make a clone of an object using the Streamer facility.

Int_t	Compare (const TObject *obj) const override
	Compare two TNamed objects.

void	Copy (TObject &named) const override
	Copy this to obj.

virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.

const char *	GetName () const override
	Returns name of object.

const char *	GetTitle () const override
	Returns title of object.

ULong_t	Hash () const override
	Return hash value for this object.

TClass *	IsA () const override

Bool_t	IsSortable () const override

void	ls (Option_t *option="") const override
	List TNamed name and title.

TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.

void	Print (Option_t *option="") const override
	Print TNamed name and title.

virtual void	SetName (const char *name)
	Set the name of the TNamed.

virtual void	SetNameTitle (const char name, const char title)
	Set all the TNamed parameters (name and title).

virtual void	SetTitle (const char *title="")
	Set the title of the TNamed.

virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject.

void	Streamer (TBuffer &) override
	Stream an object of class TObject.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.

	TObject (const TObject &object)
	TObject copy ctor.

virtual	~TObject ()
	TObject destructor.

void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.

virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.

virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.

ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object.

virtual const char *	ClassName () const
	Returns name of class to which the object belongs.

virtual void	Delete (Option_t *option="")
	Delete this object.

virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.

virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.

virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad with: `gROOT->SetSelectedPad(c1)`.

virtual void	Dump () const
	Dump contents of object on stdout.

virtual void	Error (const char method, const char msgfmt,...) const
	Issue error message.

virtual void	Execute (const char method, const char params, Int_t *error=nullptr)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=nullptr)
	Execute method on this object with parameters stored in the TObjArray.

virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).

virtual void	Fatal (const char method, const char msgfmt,...) const
	Issue fatal error message.

virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.

virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.

virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.

virtual const char *	GetIconName () const
	Returns mime type name of object.

virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).

virtual Option_t *	GetOption () const

virtual UInt_t	GetUniqueID () const
	Return the unique object id.

virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.

Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e.

virtual void	Info (const char method, const char msgfmt,...) const
	Issue info message.

virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".

virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.

virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.

void	InvertBit (UInt_t f)

Bool_t	IsDestructed () const
	IsDestructed.

virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).

virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).

R__ALWAYS_INLINE Bool_t	IsOnHeap () const

R__ALWAYS_INLINE Bool_t	IsZombie () const

void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary).

virtual Bool_t	Notify ()
	This method must be overridden to handle object notification (the base implementation is no-op).

void	Obsolete (const char method, const char asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.

void	operator delete (void *ptr)
	Operator delete.

void	operator delete (void ptr, void vp)
	Only called by placement new when throwing an exception.

void	operator delete[] (void *ptr)
	Operator delete [].

void	operator delete[] (void ptr, void vp)
	Only called by placement new[] when throwing an exception.

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *vp)

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, void *vp)

TObject &	operator= (const TObject &rhs)
	TObject assignment operator.

virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.

virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.

virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.

virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.

void	ResetBit (UInt_t f)

virtual void	SaveAs (const char filename="", Option_t option="") const
	Save this object in the file specified by filename.

virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".

void	SetBit (UInt_t f)

void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.

virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.

virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	SysError (const char method, const char msgfmt,...) const
	Issue system error message.

R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const

Int_t	TestBits (UInt_t f) const

virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.

virtual void	Warning (const char method, const char msgfmt,...) const
	Issue warning message.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

virtual Int_t	Write (const char *name=nullptr, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Static Public Member Functions
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TNamed
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TObject
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

static Longptr_t	GetDtorOnly ()
	Return destructor only flag.

static Bool_t	GetObjectStat ()
	Get status of object stat flag.

static void	SetDtorOnly (void *obj)
	Set destructor only flag.

static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.

Protected Member Functions
	TGeoParallelWorld (const TGeoParallelWorld &)=delete
	switch between different algorithm implementations

TGeoParallelWorld &	operator= (const TGeoParallelWorld &)=delete

Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char location, const char fmt, va_list va) const
	Interface to ErrorHandler (protected).

void	MakeZombie ()

Protected Attributes
AccelerationMode	fAccMode = AccelerationMode::kVoxelFinder
	to keep the vector of primitive axis aligned bounding boxes

void *	fBoundingBoxes = nullptr
	stores bounding boxes serving a quick safety candidates (to be used with the VoxelGrid and SafetyVoxelInfo)

void *	fBVH = nullptr
	array of physical nodes

TGeoManager *	fGeoManager

Bool_t	fIsClosed

TGeoPhysicalNode *	fLastState
	helper volume

TObjArray *	fPaths

TObjArray *	fPhysical
	Last PN touched.

std::vector< unsigned int >	fSafetyCandidateStore {}
	A regular 3D cache layer for fast point-based safety lookups.

TGeoVoxelGrid< SafetyVoxelInfo > *	fSafetyVoxelCache
	BVH helper structure for safety and navigation.

Bool_t	fUseOverlaps

TGeoVolume *	fVolume
	Closed flag.

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Private Member Functions
TGeoPhysicalNode *	FindNextBoundaryBVH (Double_t point[3], Double_t dir[3], Double_t &step, Double_t stepmax=1.E30)
	Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world.

TGeoPhysicalNode *	FindNextBoundaryLoop (Double_t point[3], Double_t dir[3], Double_t &step, Double_t stepmax=1.E30)
	Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world in a trivial loop version (for debugging)

TGeoPhysicalNode *	FindNextBoundaryOrig (Double_t point[3], Double_t dir[3], Double_t &step, Double_t stepmax=1.E30)
	Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world.

TGeoPhysicalNode *	FindNodeBVH (Double_t point[3])
	Finds physical node containing the point.

TGeoPhysicalNode *	FindNodeLoop (Double_t point[3])
	Finds physical node containing the point using simple algorithm (for debugging)

TGeoPhysicalNode *	FindNodeOrig (Double_t point[3])
	Finds physical node containing the point (original version based on TGeoVoxelFinder)

std::pair< double, double >	GetBVHSafetyCandidates (double point[3], std::vector< int > &candidates, double margin=0.) const
	Method to find potentially relevant candidate bounding boxes for safety calculation given a point.

std::pair< double, double >	GetLoopSafetyCandidates (double point[3], std::vector< int > &candidates, double margin=0.) const
	Method to find potentially relevant candidate bounding boxes for safety calculation given a point.

void	InitSafetyVoxel (TGeoVoxelGridIndex const &)
	Method to initialize the safety voxel at a specific 3D voxel (grid) index.

Double_t	SafetyBVH (Double_t point[3], Double_t safmax=1.E30)
	Compute safety for the parallel world (using pure BVH traversal, mainly for debugging/fallback since VoxelSafety should be faster)

Double_t	SafetyLoop (Double_t point[3], Double_t safmax=1.E30)
	Compute safety for the parallel world (trivial loop version for comparison/debugging)

Double_t	SafetyOrig (Double_t point[3], Double_t safmax=1.E30)
	Compute safety for the parallel world (original version based on TGeoVoxelFinder)

void	TestVoxelGrid ()

Double_t	VoxelSafety (Double_t point[3], Double_t safmax=1.E30)
	Compute safety for the parallel world used BVH structure with addiditional on-the-fly 3D grid/voxel caching —> essentially an O(1) algorithm !)

Additional Inherited Members
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = (1ULL << ( 3 )) }

#include <TGeoParallelWorld.h>

Inheritance diagram for TGeoParallelWorld:

[legend]

Member Enumeration Documentation

◆ AccelerationMode

enum class TGeoParallelWorld::AccelerationMode

strong

Enumerator
kVoxelFinder
kBVH

Definition at line 28 of file TGeoParallelWorld.h.

Constructor & Destructor Documentation

◆ TGeoParallelWorld() [1/3]

TGeoParallelWorld::TGeoParallelWorld ( const TGeoParallelWorld & )

protecteddelete

switch between different algorithm implementations

◆ TGeoParallelWorld() [2/3]

TGeoParallelWorld::TGeoParallelWorld ( )

inline

Definition at line 62 of file TGeoParallelWorld.h.

◆ TGeoParallelWorld() [3/3]

TGeoParallelWorld::TGeoParallelWorld	(	const char *	name,
		TGeoManager *	mgr
	)

Default constructor.

Definition at line 61 of file TGeoParallelWorld.cxx.

◆ ~TGeoParallelWorld()

TGeoParallelWorld::~TGeoParallelWorld ( )

override

Destructor.

Definition at line 76 of file TGeoParallelWorld.cxx.

Member Function Documentation

◆ AddNode()

void TGeoParallelWorld::AddNode ( const char * path )

Add a node normally to this world. Overlapping nodes not allowed.

Definition at line 92 of file TGeoParallelWorld.cxx.

◆ AddOverlap() [1/2]

void TGeoParallelWorld::AddOverlap	(	const char *	volname,
		Bool_t	activate = `kTRUE`
	)

To use this optimization, the user should declare the full list of volumes which may overlap with any of the physical nodes of the parallel world.

Better be done before misalignment

Definition at line 120 of file TGeoParallelWorld.cxx.

◆ AddOverlap() [2/2]

void TGeoParallelWorld::AddOverlap	(	TGeoVolume *	vol,
		Bool_t	activate = `kTRUE`
	)

To use this optimization, the user should declare the full list of volumes which may overlap with any of the physical nodes of the parallel world.

Better be done before misalignment

Definition at line 108 of file TGeoParallelWorld.cxx.

◆ BuildBVH()

void TGeoParallelWorld::BuildBVH ( )

Build the BVH acceleration structure.

Definition at line 1315 of file TGeoParallelWorld.cxx.

◆ CheckBVH()

bool TGeoParallelWorld::CheckBVH	(	void *	bvh,
		size_t	expected_leaf_count
	)		const

Check/validate the BVH acceleration structure.

Definition at line 1261 of file TGeoParallelWorld.cxx.

◆ CheckOverlaps()

void TGeoParallelWorld::CheckOverlaps ( Double_t ovlp = 0.001 )

Check overlaps within a tolerance value.

Definition at line 1245 of file TGeoParallelWorld.cxx.

◆ Class()

static TClass * TGeoParallelWorld::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGeoParallelWorld::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGeoParallelWorld::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 184 of file TGeoParallelWorld.h.

◆ CloseGeometry()

Bool_t TGeoParallelWorld::CloseGeometry ( )

The main geometry must be closed.

Definition at line 165 of file TGeoParallelWorld.cxx.

◆ DeclFileName()

static const char * TGeoParallelWorld::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 184 of file TGeoParallelWorld.h.

◆ Draw()

void TGeoParallelWorld::Draw ( Option_t * option )

overridevirtual

Draw the parallel world.

Reimplemented from TObject.

Definition at line 1253 of file TGeoParallelWorld.cxx.

◆ FindNextBoundary()

TGeoPhysicalNode * TGeoParallelWorld::FindNextBoundary	(	Double_t	point[3],
		Double_t	dir[3],
		Double_t &	step,
		Double_t	stepmax = `1.E30`
	)

inline

Definition at line 130 of file TGeoParallelWorld.h.

◆ FindNextBoundaryBVH()

TGeoPhysicalNode * TGeoParallelWorld::FindNextBoundaryBVH	(	Double_t	point[3],
		Double_t	dir[3],
		Double_t &	step,
		Double_t	stepmax = `1.E30`
	)

private

Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world.

Uses BVH to do so.

Definition at line 405 of file TGeoParallelWorld.cxx.

◆ FindNextBoundaryLoop()

TGeoPhysicalNode * TGeoParallelWorld::FindNextBoundaryLoop	(	Double_t	point[3],
		Double_t	dir[3],
		Double_t &	step,
		Double_t	stepmax = `1.E30`
	)

private

Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world in a trivial loop version (for debugging)

Definition at line 615 of file TGeoParallelWorld.cxx.

◆ FindNextBoundaryOrig()

TGeoPhysicalNode * TGeoParallelWorld::FindNextBoundaryOrig	(	Double_t	point[3],
		Double_t	dir[3],
		Double_t &	step,
		Double_t	stepmax = `1.E30`
	)

private

Same functionality as TGeoNavigator::FindNextDaughterBoundary for the parallel world.

(original version based on TGeoVoxelFinder)

Definition at line 519 of file TGeoParallelWorld.cxx.

◆ FindNode()

TGeoPhysicalNode * TGeoParallelWorld::FindNode ( Double_t point[3] )

inline

Definition at line 106 of file TGeoParallelWorld.h.

◆ FindNodeBVH()

TGeoPhysicalNode * TGeoParallelWorld::FindNodeBVH ( Double_t point[3] )

private

Finds physical node containing the point.

Uses BVH to do so. (Not the best algorithm since not O(1) but good enough.) An improved version could be implemented based on TGeoVoxelGrid caching.

Definition at line 245 of file TGeoParallelWorld.cxx.

◆ FindNodeLoop()

TGeoPhysicalNode * TGeoParallelWorld::FindNodeLoop ( Double_t point[3] )

private

Finds physical node containing the point using simple algorithm (for debugging)

Definition at line 353 of file TGeoParallelWorld.cxx.

◆ FindNodeOrig()

TGeoPhysicalNode * TGeoParallelWorld::FindNodeOrig ( Double_t point[3] )

private

Finds physical node containing the point (original version based on TGeoVoxelFinder)

Definition at line 318 of file TGeoParallelWorld.cxx.

◆ GetAccelerationMode()

AccelerationMode const & TGeoParallelWorld::GetAccelerationMode ( ) const

inline

Definition at line 96 of file TGeoParallelWorld.h.

◆ GetBVHSafetyCandidates()

std::pair< double, double > TGeoParallelWorld::GetBVHSafetyCandidates	(	double	point[3],
		std::vector< int > &	candidates,
		double	margin = `0.`
	)		const

private

Method to find potentially relevant candidate bounding boxes for safety calculation given a point.

Uses BVH to do so.

Definition at line 802 of file TGeoParallelWorld.cxx.

◆ GetGeometry()

TGeoManager * TGeoParallelWorld::GetGeometry ( ) const

inline

Definition at line 142 of file TGeoParallelWorld.h.

◆ GetLoopSafetyCandidates()

std::pair< double, double > TGeoParallelWorld::GetLoopSafetyCandidates	(	double	point[3],
		std::vector< int > &	candidates,
		double	margin = `0.`
	)		const

private

Method to find potentially relevant candidate bounding boxes for safety calculation given a point.

Uses trivial algorithm to do so.

Definition at line 740 of file TGeoParallelWorld.cxx.

◆ GetVolume()

TGeoVolume * TGeoParallelWorld::GetVolume ( ) const

inline

Definition at line 144 of file TGeoParallelWorld.h.

◆ InitSafetyVoxel()

void TGeoParallelWorld::InitSafetyVoxel ( TGeoVoxelGridIndex const & vi )

private

Method to initialize the safety voxel at a specific 3D voxel (grid) index.

Definition at line 916 of file TGeoParallelWorld.cxx.

◆ IsA()

TClass * TGeoParallelWorld::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 184 of file TGeoParallelWorld.h.

◆ IsClosed()

Bool_t TGeoParallelWorld::IsClosed ( ) const

inline

Definition at line 143 of file TGeoParallelWorld.h.

◆ IsUsingOverlaps()

Bool_t TGeoParallelWorld::IsUsingOverlaps ( ) const

inline

Definition at line 81 of file TGeoParallelWorld.h.

◆ operator=()

TGeoParallelWorld & TGeoParallelWorld::operator= ( const TGeoParallelWorld & )

protecteddelete

◆ PrintBVH()

void TGeoParallelWorld::PrintBVH ( ) const

Prints the BVH.

Definition at line 374 of file TGeoParallelWorld.cxx.

◆ PrintDetectedOverlaps()

Int_t TGeoParallelWorld::PrintDetectedOverlaps ( ) const

Print the overlaps which were detected during real tracking.

Definition at line 135 of file TGeoParallelWorld.cxx.

◆ RefreshPhysicalNodes()

void TGeoParallelWorld::RefreshPhysicalNodes ( )

Refresh the node pointers and re-voxelize.

To be called mandatory in case re-alignment happened.

Definition at line 198 of file TGeoParallelWorld.cxx.

◆ ResetOverlaps()

void TGeoParallelWorld::ResetOverlaps ( ) const

Reset overlapflag for all volumes in geometry.

Definition at line 154 of file TGeoParallelWorld.cxx.

◆ Safety()

Double_t TGeoParallelWorld::Safety	(	Double_t	point[3],
		Double_t	safmax = `1.E30`
	)

inline

Definition at line 118 of file TGeoParallelWorld.h.

◆ SafetyBVH()

double TGeoParallelWorld::SafetyBVH	(	Double_t	point[3],
		Double_t	safmax = `1.E30`
	)

private

Compute safety for the parallel world (using pure BVH traversal, mainly for debugging/fallback since VoxelSafety should be faster)

Definition at line 1027 of file TGeoParallelWorld.cxx.

◆ SafetyLoop()

Double_t TGeoParallelWorld::SafetyLoop	(	Double_t	point[3],
		Double_t	safmax = `1.E30`
	)

private

Compute safety for the parallel world (trivial loop version for comparison/debugging)

Definition at line 1207 of file TGeoParallelWorld.cxx.

◆ SafetyOrig()

Double_t TGeoParallelWorld::SafetyOrig	(	Double_t	point[3],
		Double_t	safmax = `1.E30`
	)

private

Compute safety for the parallel world (original version based on TGeoVoxelFinder)

Definition at line 1145 of file TGeoParallelWorld.cxx.

◆ SetAccelerationMode()

void TGeoParallelWorld::SetAccelerationMode ( AccelerationMode const & mode )

inline

Definition at line 95 of file TGeoParallelWorld.h.

◆ SetUseOverlaps()

void TGeoParallelWorld::SetUseOverlaps ( Bool_t flag )

inline

Definition at line 80 of file TGeoParallelWorld.h.

◆ Streamer()

void TGeoParallelWorld::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TObject.

Reimplemented from TObject.

◆ StreamerNVirtual()

void TGeoParallelWorld::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 184 of file TGeoParallelWorld.h.

◆ TestVoxelGrid()

void TGeoParallelWorld::TestVoxelGrid ( )

private

Definition at line 1425 of file TGeoParallelWorld.cxx.

◆ VoxelSafety()

double TGeoParallelWorld::VoxelSafety	(	Double_t	point[3],
		Double_t	safmax = `1.E30`
	)

private

Compute safety for the parallel world used BVH structure with addiditional on-the-fly 3D grid/voxel caching —> essentially an O(1) algorithm !)

Definition at line 944 of file TGeoParallelWorld.cxx.

Member Data Documentation

◆ fAccMode

AccelerationMode TGeoParallelWorld::fAccMode = AccelerationMode::kVoxelFinder

protected

to keep the vector of primitive axis aligned bounding boxes

Definition at line 55 of file TGeoParallelWorld.h.

◆ fBoundingBoxes

void* TGeoParallelWorld::fBoundingBoxes = nullptr

protected

stores bounding boxes serving a quick safety candidates (to be used with the VoxelGrid and SafetyVoxelInfo)

Definition at line 54 of file TGeoParallelWorld.h.

◆ fBVH

void* TGeoParallelWorld::fBVH = nullptr

protected

array of physical nodes

Definition at line 49 of file TGeoParallelWorld.h.

◆ fGeoManager

TGeoManager* TGeoParallelWorld::fGeoManager

protected

Definition at line 41 of file TGeoParallelWorld.h.

◆ fIsClosed

Bool_t TGeoParallelWorld::fIsClosed

protected

Definition at line 44 of file TGeoParallelWorld.h.

◆ fLastState

TGeoPhysicalNode* TGeoParallelWorld::fLastState

protected

helper volume

Definition at line 46 of file TGeoParallelWorld.h.

◆ fPaths

TObjArray* TGeoParallelWorld::fPaths

protected

Definition at line 42 of file TGeoParallelWorld.h.

◆ fPhysical

TObjArray* TGeoParallelWorld::fPhysical

protected

Last PN touched.

Definition at line 47 of file TGeoParallelWorld.h.

◆ fSafetyCandidateStore

std::vector<unsigned int> TGeoParallelWorld::fSafetyCandidateStore {}

protected

A regular 3D cache layer for fast point-based safety lookups.

Definition at line 52 of file TGeoParallelWorld.h.

◆ fSafetyVoxelCache

TGeoVoxelGrid<SafetyVoxelInfo>* TGeoParallelWorld::fSafetyVoxelCache

protected

Initial value:

=

nullptr

BVH helper structure for safety and navigation.

Definition at line 50 of file TGeoParallelWorld.h.

◆ fUseOverlaps

Bool_t TGeoParallelWorld::fUseOverlaps

protected

Definition at line 43 of file TGeoParallelWorld.h.

◆ fVolume

TGeoVolume* TGeoParallelWorld::fVolume

protected

Closed flag.

Definition at line 45 of file TGeoParallelWorld.h.

Libraries for TGeoParallelWorld:

[legend]

The documentation for this class was generated from the following files:

geom/geom/inc/TGeoParallelWorld.h
geom/geom/src/TGeoParallelWorld.cxx

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Member Enumeration Documentation

◆ AccelerationMode

Constructor & Destructor Documentation

◆ TGeoParallelWorld() [1/3]

◆ TGeoParallelWorld() [2/3]

◆ TGeoParallelWorld() [3/3]

◆ ~TGeoParallelWorld()

Member Function Documentation

◆ AddNode()

◆ AddOverlap() [1/2]

◆ AddOverlap() [2/2]

◆ BuildBVH()

◆ CheckBVH()

◆ CheckOverlaps()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ CloseGeometry()

◆ DeclFileName()

◆ Draw()

◆ FindNextBoundary()

◆ FindNextBoundaryBVH()

◆ FindNextBoundaryLoop()

◆ FindNextBoundaryOrig()

◆ FindNode()

◆ FindNodeBVH()

◆ FindNodeLoop()

◆ FindNodeOrig()

◆ GetAccelerationMode()

◆ GetBVHSafetyCandidates()

◆ GetGeometry()

◆ GetLoopSafetyCandidates()

◆ GetVolume()

◆ InitSafetyVoxel()

◆ IsA()

◆ IsClosed()

◆ IsUsingOverlaps()

◆ operator=()

◆ PrintBVH()

◆ PrintDetectedOverlaps()

◆ RefreshPhysicalNodes()

◆ ResetOverlaps()

◆ Safety()

◆ SafetyBVH()

◆ SafetyLoop()

◆ SafetyOrig()

◆ SetAccelerationMode()

◆ SetUseOverlaps()

◆ Streamer()

◆ StreamerNVirtual()

◆ TestVoxelGrid()

◆ VoxelSafety()

Member Data Documentation

◆ fAccMode

◆ fBoundingBoxes

◆ fBVH

◆ fGeoManager

◆ fIsClosed

◆ fLastState

◆ fPaths

◆ fPhysical

◆ fSafetyCandidateStore

◆ fSafetyVoxelCache

◆ fUseOverlaps

◆ fVolume