Physical nodes are the actual 'touchable' objects in the geometry, representing a path of positioned volumes starting with the top node: path=/TOP/A_1/B_4/C_3 , where A, B, C represent names of volumes.

The number of physical nodes is given by the total number of possible of branches in the geometry hierarchy. In case of detector geometries and specially for calorimeters this number can be of the order 1e6-1e9, therefore it is impossible to create all physical nodes as objects in memory. In TGeo, physical nodes are represented by the class TGeoPhysicalNode and can be created on demand for alignment purposes:

TGeoPhysicalNode *pn = new TGeoPhysicalNode("path_to_object")

Physical nodes are the actual 'touchable' objects in the geometry, representing a path of positioned ...

Definition TGeoPhysicalNode.h:37

TGeoPhysicalNode::TGeoPhysicalNode

TGeoPhysicalNode()

Default constructor.

Definition TGeoPhysicalNode.cxx:77

Once created, a physical node can be misaligned, meaning that its position or even shape can be changed:

pn->Align(TGeoMatrix* newmat, TGeoShape* newshape, Bool_t check=kFALSE)

kFALSE

const Bool_t kFALSE

Definition RtypesCore.h:101

TGeoMatrix

Geometrical transformation package.

Definition TGeoMatrix.h:41

TGeoPhysicalNode::Align

Bool_t Align(TGeoMatrix *newmat=0, TGeoShape *newshape=0, Bool_t check=kFALSE, Double_t ovlp=0.001)

Align a physical node with a new relative matrix/shape.

Definition TGeoPhysicalNode.cxx:133

TGeoShape

Base abstract class for all shapes.

Definition TGeoShape.h:26

bool

Definition at line 35 of file TGeoPhysicalNode.h.

Public Types
enum	{ kGeoPNodeFull = BIT(10) , kGeoPNodeVisible = BIT(11) , kGeoPNodeVolAtt = BIT(12) , kGeoPNodeAligned = BIT(13) }

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

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

enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }

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

Public Member Functions
	TGeoPhysicalNode ()
	Default constructor.

	TGeoPhysicalNode (const char *path)
	Constructor.

virtual	~TGeoPhysicalNode ()
	Destructor.

Bool_t	Align (TGeoMatrix newmat=0, TGeoShape newshape=0, Bool_t check=kFALSE, Double_t ovlp=0.001)
	Align a physical node with a new relative matrix/shape.

void	cd () const

void	Draw (Option_t *option="")
	Draw this node.

Int_t	GetLevel () const

TGeoHMatrix *	GetMatrix (Int_t level=-1) const
	Return global matrix for node at LEVEL.

TGeoNode *	GetMother (Int_t levup=1) const
	Return parent at LEVUP generation.

TGeoNode *	GetNode (Int_t level=-1) const
	Return node in branch at LEVEL. If not specified, return last leaf.

TGeoHMatrix *	GetOriginalMatrix () const

TGeoShape *	GetShape (Int_t level=-1) const
	Return shape associated with volume.

TGeoVolume *	GetVolume (Int_t level=-1) const
	Return volume associated with node at LEVEL in the branch.

Bool_t	IsAligned () const

Bool_t	IsMatchingState (TGeoNavigator *nav) const
	Checks if a given navigator state matches this physical node.

Bool_t	IsVisible () const

Bool_t	IsVisibleFull () const

Bool_t	IsVolAttributes () const

virtual void	Paint (Option_t *option="")
	Paint this node and its content according to visualization settings.

virtual void	Print (Option_t *option="") const
	Print info about this node.

void	Refresh ()
	Refresh this physical node.

void	SetIsVolAtt (Bool_t flag=kTRUE)

void	SetMatrixOrig (const TGeoMatrix *local)
	Allows PN entries (or users) to preset the local original matrix for the last node pointed by the path.

void	SetVisibility (Bool_t flag=kTRUE)

void	SetVisibleFull (Bool_t flag=kTRUE)

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.

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

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

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

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

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

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

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

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

virtual Bool_t	IsSortable () const

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

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

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.

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 for instance with: `gROOT->SetSelectedPad(gPad)`.

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=0)
	Execute method on this object with the given parameter string, e.g.

virtual void	Execute (TMethod method, TObjArray params, Int_t *error=0)
	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.

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)
	Operator delete [].

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	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.

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=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.

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

Public Member Functions inherited from TAttLine
	TAttLine ()
	AttLine default constructor.

	TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth)
	AttLine normal constructor.

virtual	~TAttLine ()
	AttLine destructor.

void	Copy (TAttLine &attline) const
	Copy this line attributes to a new TAttLine.

Int_t	DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2)
	Compute distance from point px,py to a line.

virtual Color_t	GetLineColor () const
	Return the line color.

virtual Style_t	GetLineStyle () const
	Return the line style.

virtual Width_t	GetLineWidth () const
	Return the line width.

virtual void	Modify ()
	Change current line attributes if necessary.

virtual void	ResetAttLine (Option_t *option="")
	Reset this line attributes to default values.

virtual void	SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1)
	Save line attributes as C++ statement(s) on output stream out.

virtual void	SetLineAttributes ()
	Invoke the DialogCanvas Line attributes.

virtual void	SetLineColor (Color_t lcolor)
	Set the line color.

virtual void	SetLineColorAlpha (Color_t lcolor, Float_t lalpha)
	Set a transparent line color.

virtual void	SetLineStyle (Style_t lstyle)
	Set the line style.

virtual void	SetLineWidth (Width_t lwidth)
	Set the line width.

Protected Member Functions
	TGeoPhysicalNode (const TGeoPhysicalNode &)=delete

TGeoPhysicalNode &	operator= (const TGeoPhysicalNode &)=delete

void	SetAligned (Bool_t flag=kTRUE)

void	SetBranchAsState ()
	Set node branch according to current state.

Bool_t	SetPath (const char *path)
	Specify the path for this node.

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
Int_t	fLevel

TObjArray *	fMatrices

TGeoHMatrix *	fMatrixOrig

TObjArray *	fNodes

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Protected Attributes inherited from TAttLine
Color_t	fLineColor
	Line color.

Style_t	fLineStyle
	Line style.

Width_t	fLineWidth
	Line width.

Additional Inherited Members
Static Public Member Functions inherited from TObject
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 Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }

#include <TGeoPhysicalNode.h>

Inheritance diagram for TGeoPhysicalNode:

[legend]

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enumerator
kGeoPNodeFull
kGeoPNodeVisible
kGeoPNodeVolAtt
kGeoPNodeAligned

Definition at line 52 of file TGeoPhysicalNode.h.

Constructor & Destructor Documentation

◆ TGeoPhysicalNode() [1/3]

TGeoPhysicalNode::TGeoPhysicalNode ( const TGeoPhysicalNode & )

protecteddelete

◆ TGeoPhysicalNode() [2/3]

TGeoPhysicalNode::TGeoPhysicalNode ( )

Default constructor.

Definition at line 77 of file TGeoPhysicalNode.cxx.

◆ TGeoPhysicalNode() [3/3]

TGeoPhysicalNode::TGeoPhysicalNode ( const char * path )

Constructor.

Definition at line 92 of file TGeoPhysicalNode.cxx.

◆ ~TGeoPhysicalNode()

TGeoPhysicalNode::~TGeoPhysicalNode ( )

virtual

Destructor.

Definition at line 112 of file TGeoPhysicalNode.cxx.

Member Function Documentation

◆ Align()

Bool_t TGeoPhysicalNode::Align	(	TGeoMatrix *	newmat = `0`,
		TGeoShape *	newshape = `0`,
		Bool_t	check = `kFALSE`,
		Double_t	ovlp = `0.001`
	)

Align a physical node with a new relative matrix/shape.

Example: /TOP_1/A_1/B_1/C_1 node->Align(transl_1, box) will perform:

change RELATIVE translation of C_1 node (with respect to its container volume B) to transl_1
change the shape of the C volume NOTE The operations will affect ONLY the LAST node in the branch. All volumes/nodes in the branch represented by this physical node are CLONED so the operation does not affect other possible replicas.

Definition at line 133 of file TGeoPhysicalNode.cxx.

◆ cd()

void TGeoPhysicalNode::cd ( ) const

Definition at line 343 of file TGeoPhysicalNode.cxx.

◆ Draw()

void TGeoPhysicalNode::Draw ( Option_t * option = "" )

virtual

Draw this node.

Reimplemented from TObject.

Definition at line 352 of file TGeoPhysicalNode.cxx.

◆ GetLevel()

Int_t TGeoPhysicalNode::GetLevel ( ) const

inline

Definition at line 68 of file TGeoPhysicalNode.h.

◆ GetMatrix()

TGeoHMatrix * TGeoPhysicalNode::GetMatrix ( Int_t level = -1 ) const

Return global matrix for node at LEVEL.

Definition at line 369 of file TGeoPhysicalNode.cxx.

◆ GetMother()

TGeoNode * TGeoPhysicalNode::GetMother ( Int_t levup = 1 ) const

Return parent at LEVUP generation.

Definition at line 359 of file TGeoPhysicalNode.cxx.

◆ GetNode()

TGeoNode * TGeoPhysicalNode::GetNode ( Int_t level = -1 ) const

Return node in branch at LEVEL. If not specified, return last leaf.

Definition at line 379 of file TGeoPhysicalNode.cxx.

◆ GetOriginalMatrix()

TGeoHMatrix * TGeoPhysicalNode::GetOriginalMatrix ( ) const

inline

Definition at line 70 of file TGeoPhysicalNode.h.

◆ GetShape()

TGeoShape * TGeoPhysicalNode::GetShape ( Int_t level = -1 ) const

Return shape associated with volume.

Definition at line 399 of file TGeoPhysicalNode.cxx.

◆ GetVolume()

TGeoVolume * TGeoPhysicalNode::GetVolume ( Int_t level = -1 ) const

Return volume associated with node at LEVEL in the branch.

Definition at line 389 of file TGeoPhysicalNode.cxx.

◆ IsAligned()

Bool_t TGeoPhysicalNode::IsAligned ( ) const

inline

Definition at line 77 of file TGeoPhysicalNode.h.

◆ IsMatchingState()

Bool_t TGeoPhysicalNode::IsMatchingState ( TGeoNavigator * nav ) const

Checks if a given navigator state matches this physical node.

Definition at line 515 of file TGeoPhysicalNode.cxx.

◆ IsVisible()

Bool_t TGeoPhysicalNode::IsVisible ( ) const

inline

Definition at line 80 of file TGeoPhysicalNode.h.

◆ IsVisibleFull()

Bool_t TGeoPhysicalNode::IsVisibleFull ( ) const

inline

Definition at line 81 of file TGeoPhysicalNode.h.

◆ IsVolAttributes()

Bool_t TGeoPhysicalNode::IsVolAttributes ( ) const

inline

Definition at line 79 of file TGeoPhysicalNode.h.

◆ operator=()

TGeoPhysicalNode & TGeoPhysicalNode::operator= ( const TGeoPhysicalNode & )

protecteddelete

◆ Paint()

void TGeoPhysicalNode::Paint ( Option_t * option = "" )

virtual

Paint this node and its content according to visualization settings.

Reimplemented from TObject.

Definition at line 409 of file TGeoPhysicalNode.cxx.

◆ Print()

void TGeoPhysicalNode::Print ( Option_t * option = "" ) const

virtual

Print info about this node.

Reimplemented from TNamed.

Definition at line 419 of file TGeoPhysicalNode.cxx.

◆ Refresh()

void TGeoPhysicalNode::Refresh ( )

Refresh this physical node.

Called for all registered physical nodes after an Align() call.

Definition at line 441 of file TGeoPhysicalNode.cxx.

◆ SetAligned()

void TGeoPhysicalNode::SetAligned ( Bool_t flag = kTRUE )

inlineprotected

Definition at line 47 of file TGeoPhysicalNode.h.

◆ SetBranchAsState()

void TGeoPhysicalNode::SetBranchAsState ( )

protected

Set node branch according to current state.

Definition at line 449 of file TGeoPhysicalNode.cxx.

◆ SetIsVolAtt()

void TGeoPhysicalNode::SetIsVolAtt ( Bool_t flag = kTRUE )

inline

Definition at line 87 of file TGeoPhysicalNode.h.

◆ SetMatrixOrig()

void TGeoPhysicalNode::SetMatrixOrig ( const TGeoMatrix * local )

Allows PN entries (or users) to preset the local original matrix for the last node pointed by the path.

Definition at line 489 of file TGeoPhysicalNode.cxx.

◆ SetPath()

Bool_t TGeoPhysicalNode::SetPath ( const char * path )

protected

Specify the path for this node.

Definition at line 502 of file TGeoPhysicalNode.cxx.

◆ SetVisibility()

void TGeoPhysicalNode::SetVisibility ( Bool_t flag = kTRUE )

inline

Definition at line 88 of file TGeoPhysicalNode.h.

◆ SetVisibleFull()

void TGeoPhysicalNode::SetVisibleFull ( Bool_t flag = kTRUE )

inline

Definition at line 89 of file TGeoPhysicalNode.h.

Member Data Documentation

◆ fLevel

Int_t TGeoPhysicalNode::fLevel

protected

Definition at line 39 of file TGeoPhysicalNode.h.

◆ fMatrices

TObjArray* TGeoPhysicalNode::fMatrices

protected

Definition at line 40 of file TGeoPhysicalNode.h.

◆ fMatrixOrig

TGeoHMatrix* TGeoPhysicalNode::fMatrixOrig

protected

Definition at line 42 of file TGeoPhysicalNode.h.

◆ fNodes

TObjArray* TGeoPhysicalNode::fNodes

protected

Definition at line 41 of file TGeoPhysicalNode.h.

Libraries for TGeoPhysicalNode:

[legend]

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

geom/geom/inc/TGeoPhysicalNode.h
geom/geom/src/TGeoPhysicalNode.cxx

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ anonymous enum

Constructor & Destructor Documentation

◆ TGeoPhysicalNode() [1/3]

◆ TGeoPhysicalNode() [2/3]

◆ TGeoPhysicalNode() [3/3]

◆ ~TGeoPhysicalNode()

Member Function Documentation

◆ Align()

◆ cd()

◆ Draw()

◆ GetLevel()

◆ GetMatrix()

◆ GetMother()

◆ GetNode()

◆ GetOriginalMatrix()

◆ GetShape()

◆ GetVolume()

◆ IsAligned()

◆ IsMatchingState()

◆ IsVisible()

◆ IsVisibleFull()

◆ IsVolAttributes()

◆ operator=()

◆ Paint()

◆ Print()

◆ Refresh()

◆ SetAligned()

◆ SetBranchAsState()

◆ SetIsVolAtt()

◆ SetMatrixOrig()

◆ SetPath()

◆ SetVisibility()

◆ SetVisibleFull()

Member Data Documentation

◆ fLevel

◆ fMatrices

◆ fMatrixOrig

◆ fNodes