TGeometry description.

The Geometry class describes the geometry of a detector. The current implementation supports the GEANT3 style description. A special program provided in the ROOT utilities (toroot) can be used to automatically translate a GEANT detector geometry into a ROOT geometry.

a Geometry object is entered into the list of geometries into the ROOT main object (see TROOT description) when the TGeometry constructor is invoked. Several geometries may coexist in memory. / A Geometry object consist of the following linked lists:

the TMaterial list (material definition only).
the TRotmatrix list (Rotation matrices definition only).
the TShape list (volume definition only).
the TNode list assembling all detector elements.

Only the Build and Draw functions for a geometry are currently supported.

The conversion program from Geant to Root has been added in the list of utilities in utils directory.(see g2root) The executable module of g2root can be found in $ROOTSYS/bin/g2root.

To use this conversion program, type the shell command:

g2root geant_rzfile macro_name

for example

g2root na49.geom na49.C

will convert the GEANT RZ file na49.geom into a ROOT macro na49.C

To generate the Geometry structure within Root, do:

Root > .x na49.C
Root > na49.Draw()
Root > wh.x3d()    (this invokes the 3-d Root viewer)
Root > TFile gna49("na49.root","NEW")  //open a new root file
Root > na49.Write()                    //Write the na49 geometry structure
Root > gna49.Write()                   //Write all keys (in this case only one)

Note: all keys are also written on closing of the file, gna49.Close or when the program exits, Root closes all open files correctly. Once this file has been written, in a subsequent session, simply do:

Root > TFile gna49("na49.root")

Root > na49.Draw()

Draw

th1 Draw()

The figure below shows the geometry above using the x3d viewer. This x3d viewer is invoked by selecting "View x3d" in the View menu of a canvas (See example of this tool bar in TCanvas).

Definition at line 39 of file TGeometry.h.

Public Member Functions
	TGeometry ()
	Geometry default constructor.

	TGeometry (const char name, const char title)
	Geometry normal constructor.

	~TGeometry () override
	Geometry default destructor.

void	Browse (TBrowser *b) override
	Browse.

virtual void	cd (const char *path=nullptr)
	Change Current Geometry to this.

void	Draw (Option_t *option="") override
	Draw this Geometry.

TObject *	FindObject (const char *name) const override
	Search object identified by name in the geometry tree.

TObject *	FindObject (const TObject *obj) const override
	Find object in a geometry node, material, etc.

Int_t	GeomLevel () const

Float_t	GetBomb () const

TRotMatrix *	GetCurrentMatrix () const

TNode *	GetCurrentNode () const

TRotMatrix *	GetCurrentPosition (Double_t x, Double_t y, Double_t *z) const

TRotMatrix *	GetCurrentPosition (Float_t x, Float_t y, Float_t *z) const

Bool_t	GetCurrentReflection () const

THashList *	GetListOfMaterials () const

THashList *	GetListOfMatrices () const

TList *	GetListOfNodes () const

THashList *	GetListOfShapes () const

TMaterial *	GetMaterial (const char *name) const
	Return pointer to Material with name.

TMaterial *	GetMaterialByNumber (Int_t number) const
	Return pointer to Material with number.

TNode *	GetNode (const char *name) const
	Return pointer to node with name in the geometry tree.

TRotMatrix *	GetRotMatrix (const char *name) const
	Return pointer to RotMatrix with name.

TRotMatrix *	GetRotMatrixByNumber (Int_t number) const
	Return pointer to RotMatrix with number.

TShape *	GetShape (const char *name) const
	Return pointer to Shape with name.

TShape *	GetShapeByNumber (Int_t number) const
	Return pointer to Shape with number.

TClass *	IsA () const override

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

virtual void	Local2Master (Double_t local, Double_t master)
	Convert one point from local system to master reference system.

virtual void	Local2Master (Float_t local, Float_t master)
	Convert one point from local system to master reference system.

void	ls (Option_t *option="rsn2") const override
	List this geometry.

virtual void	Master2Local (Double_t master, Double_t local)
	Convert one point from master system to local reference system.

virtual void	Master2Local (Float_t master, Float_t local)
	Convert one point from master system to local reference system.

virtual void	Node (const char name, const char title, const char shapename, Double_t x=0, Double_t y=0, Double_t z=0, const char matrixname="", Option_t *option="")
	Add a node to the current node in this geometry.

virtual Int_t	PopLevel ()

virtual Int_t	PushLevel ()

void	RecursiveRemove (TObject *obj) override
	Recursively remove object from a Geometry list.

virtual void	SetBomb (Float_t bomb=1.4)

virtual void	SetCurrentNode (TNode *node)

virtual void	SetGeomLevel (Int_t level=0)

virtual void	SetMatrix (TRotMatrix *matrix=nullptr)

virtual void	SetPosition (Double_t x, Double_t y, Double_t z)

virtual void	SetPosition (Float_t x, Float_t y, Float_t z)

virtual void	SetPosition (TRotMatrix *matrix, Double_t x=0, Double_t y=0, Double_t z=0)

virtual void	SetPosition (TRotMatrix *matrix, Float_t x, Float_t y, Float_t z)

void	Streamer (TBuffer &) override
	Stream a class object.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

virtual void	UpdateMatrix (TNode *node)
	Update global rotation matrix/translation vector for this node this function must be called before invoking Local2Master.

virtual void	UpdateTempMatrix (Double_t x, Double_t y, Double_t z, Double_t *matrix, Bool_t isReflection=kFALSE)
	Update temp matrix.

virtual void	UpdateTempMatrix (Double_t x=0, Double_t y=0, Double_t z=0, TRotMatrix *matrix=nullptr)
	Update temp matrix.

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.

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 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).

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.

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 TObjArray *	Get (const char *name)
	Static function called by TROOT to search name in the geometry.

static void	UpdateTempMatrix (Double_t dx1, Double_t rmat1, Double_t x, Double_t y, Double_t z, Double_t matrix, Double_t dxnew, Double_t *rmatnew)
	Compute new translation vector and global matrix.

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
	TGeometry (const TGeometry &)
	copy constructor

TGeometry &	operator= (const TGeometry &)
	assignment operator

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 ()

Private Attributes
Float_t	fBomb
	Pointers to shapes.

TNode *	fCurrentNode
	Pointers to current rotation matrices.

Int_t	fGeomLevel

Bool_t	fIsReflection [kMAXLEVELS]

TMaterial **	fMaterialPointer
	Pointer to current node.

THashList *	fMaterials

THashList *	fMatrices

TRotMatrix *	fMatrix

TRotMatrix **	fMatrixPointer
	Pointers to materials.

TList *	fNodes

Double_t	fRotMatrix [kMAXLEVELS][kMatrixSize]

TShape **	fShapePointer
	Pointers to rotation matrices.

THashList *	fShapes

Double_t	fTranslation [kMAXLEVELS][kVectorSize]

Double_t	fX

Double_t	fY

Double_t	fZ
	The global translation of the current node.

Additional Inherited Members
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 )) }

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

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

#include <TGeometry.h>

Inheritance diagram for TGeometry:

[legend]

Constructor & Destructor Documentation

◆ TGeometry() [1/3]

TGeometry::TGeometry ( const TGeometry & geo )

protected

copy constructor

Definition at line 139 of file TGeometry.cxx.

◆ TGeometry() [2/3]

TGeometry::TGeometry ( )

Geometry default constructor.

Definition at line 96 of file TGeometry.cxx.

◆ TGeometry() [3/3]

TGeometry::TGeometry	(	const char *	name,
		const char *	title
	)

Geometry normal constructor.

Definition at line 117 of file TGeometry.cxx.

◆ ~TGeometry()

TGeometry::~TGeometry ( )

override

Geometry default destructor.

Definition at line 200 of file TGeometry.cxx.

Member Function Documentation

◆ Browse()

void TGeometry::Browse ( TBrowser * b )

overridevirtual

Browse.

Reimplemented from TObject.

Definition at line 233 of file TGeometry.cxx.

◆ cd()

void TGeometry::cd ( const char * path = nullptr )

virtual

Change Current Geometry to this.

Definition at line 246 of file TGeometry.cxx.

◆ Class()

static TClass * TGeometry::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGeometry::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGeometry::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 119 of file TGeometry.h.

◆ DeclFileName()

static const char * TGeometry::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 119 of file TGeometry.h.

◆ Draw()

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

overridevirtual

Draw this Geometry.

Reimplemented from TObject.

Definition at line 254 of file TGeometry.cxx.

◆ FindObject() [1/2]

TObject * TGeometry::FindObject ( const char * name ) const

overridevirtual

Search object identified by name in the geometry tree.

Reimplemented from TObject.

Definition at line 273 of file TGeometry.cxx.

◆ FindObject() [2/2]

TObject * TGeometry::FindObject ( const TObject * obj ) const

overridevirtual

Find object in a geometry node, material, etc.

Reimplemented from TObject.

Definition at line 264 of file TGeometry.cxx.

◆ GeomLevel()

Int_t TGeometry::GeomLevel ( ) const

inline

Definition at line 74 of file TGeometry.h.

◆ Get()

TObjArray * TGeometry::Get ( const char * name )

static

Static function called by TROOT to search name in the geometry.

Returns a TObjArray containing a pointer to the found object and a pointer to the container where the object was found.

Definition at line 285 of file TGeometry.cxx.

◆ GetBomb()

Float_t TGeometry::GetBomb ( ) const

inline

Definition at line 73 of file TGeometry.h.

◆ GetCurrentMatrix()

TRotMatrix * TGeometry::GetCurrentMatrix ( ) const

inline

Definition at line 123 of file TGeometry.h.

◆ GetCurrentNode()

TNode * TGeometry::GetCurrentNode ( ) const

inline

Definition at line 79 of file TGeometry.h.

◆ GetCurrentPosition() [1/2]

TRotMatrix * TGeometry::GetCurrentPosition	(	Double_t *	x,
		Double_t *	y,
		Double_t *	z
	)		const

inline

Definition at line 127 of file TGeometry.h.

◆ GetCurrentPosition() [2/2]

TRotMatrix * TGeometry::GetCurrentPosition	(	Float_t *	x,
		Float_t *	y,
		Float_t *	z
	)		const

inline

Definition at line 131 of file TGeometry.h.

◆ GetCurrentReflection()

Bool_t TGeometry::GetCurrentReflection ( ) const

inline

Definition at line 135 of file TGeometry.h.

◆ GetListOfMaterials()

THashList * TGeometry::GetListOfMaterials ( ) const

inline

Definition at line 77 of file TGeometry.h.

◆ GetListOfMatrices()

THashList * TGeometry::GetListOfMatrices ( ) const

inline

Definition at line 78 of file TGeometry.h.

◆ GetListOfNodes()

TList * TGeometry::GetListOfNodes ( ) const

inline

Definition at line 76 of file TGeometry.h.

◆ GetListOfShapes()

THashList * TGeometry::GetListOfShapes ( ) const

inline

Definition at line 75 of file TGeometry.h.

◆ GetMaterial()

TMaterial * TGeometry::GetMaterial ( const char * name ) const

Return pointer to Material with name.

Definition at line 322 of file TGeometry.cxx.

◆ GetMaterialByNumber()

TMaterial * TGeometry::GetMaterialByNumber ( Int_t number ) const

Return pointer to Material with number.

Definition at line 330 of file TGeometry.cxx.

◆ GetNode()

TNode * TGeometry::GetNode ( const char * name ) const

Return pointer to node with name in the geometry tree.

Definition at line 345 of file TGeometry.cxx.

◆ GetRotMatrix()

TRotMatrix * TGeometry::GetRotMatrix ( const char * name ) const

Return pointer to RotMatrix with name.

Definition at line 356 of file TGeometry.cxx.

◆ GetRotMatrixByNumber()

TRotMatrix * TGeometry::GetRotMatrixByNumber ( Int_t number ) const

Return pointer to RotMatrix with number.

Definition at line 364 of file TGeometry.cxx.

◆ GetShape()

TShape * TGeometry::GetShape ( const char * name ) const

Return pointer to Shape with name.

Definition at line 379 of file TGeometry.cxx.

◆ GetShapeByNumber()

TShape * TGeometry::GetShapeByNumber ( Int_t number ) const

Return pointer to Shape with number.

Definition at line 387 of file TGeometry.cxx.

◆ IsA()

TClass * TGeometry::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TObject.

Definition at line 119 of file TGeometry.h.

◆ IsFolder()

Bool_t TGeometry::IsFolder ( ) const

inlineoverridevirtual

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

Reimplemented from TObject.

Definition at line 91 of file TGeometry.h.

◆ Local2Master() [1/2]

void TGeometry::Local2Master	(	Double_t *	local,
		Double_t *	master
	)

virtual

Convert one point from local system to master reference system.

Note that before invoking this function, the global rotation matrix and translation vector for this node must have been computed. This is automatically done by the Paint functions. Otherwise TNode::UpdateMatrix should be called before.

Definition at line 407 of file TGeometry.cxx.

◆ Local2Master() [2/2]

void TGeometry::Local2Master	(	Float_t *	local,
		Float_t *	master
	)

virtual

Convert one point from local system to master reference system.

Note that before invoking this function, the global rotation matrix and translation vector for this node must have been computed. This is automatically done by the Paint functions. Otherwise TNode::UpdateMatrix should be called before.

Definition at line 441 of file TGeometry.cxx.

◆ ls()

void TGeometry::ls ( Option_t * option = "rsn2" ) const

overridevirtual

List this geometry.

Reimplemented from TObject.

Definition at line 473 of file TGeometry.cxx.

◆ Master2Local() [1/2]

void TGeometry::Master2Local	(	Double_t *	master,
		Double_t *	local
	)

virtual

Convert one point from master system to local reference system.

Note that before invoking this function, the global rotation matrix and translation vector for this node must have been computed. This is automatically done by the Paint functions. Otherwise TNode::UpdateMatrix should be called before.

Definition at line 503 of file TGeometry.cxx.

◆ Master2Local() [2/2]

void TGeometry::Master2Local	(	Float_t *	master,
		Float_t *	local
	)

virtual

Convert one point from master system to local reference system.

Note that before invoking this function, the global rotation matrix and translation vector for this node must have been computed. This is automatically done by the Paint functions. Otherwise TNode::UpdateMatrix should be called before.

Definition at line 532 of file TGeometry.cxx.

◆ Node()

void TGeometry::Node	(	const char *	name,
		const char *	title,
		const char *	shapename,
		Double_t	x = `0`,
		Double_t	y = `0`,
		Double_t	z = `0`,
		const char *	matrixname = `""`,
		Option_t *	option = `""`
	)

virtual

Add a node to the current node in this geometry.

Definition at line 557 of file TGeometry.cxx.

◆ operator=()

TGeometry & TGeometry::operator= ( const TGeometry & geo )

protected

assignment operator

Definition at line 168 of file TGeometry.cxx.

◆ PopLevel()

virtual Int_t TGeometry::PopLevel ( )

inlinevirtual

Definition at line 100 of file TGeometry.h.

◆ PushLevel()

virtual Int_t TGeometry::PushLevel ( )

inlinevirtual

Definition at line 99 of file TGeometry.h.

◆ RecursiveRemove()

void TGeometry::RecursiveRemove ( TObject * obj )

overridevirtual

Recursively remove object from a Geometry list.

Reimplemented from TObject.

Definition at line 565 of file TGeometry.cxx.

◆ SetBomb()

virtual void TGeometry::SetBomb ( Float_t bomb = 1.4 )

inlinevirtual

Definition at line 102 of file TGeometry.h.

◆ SetCurrentNode()

virtual void TGeometry::SetCurrentNode ( TNode * node )

inlinevirtual

Definition at line 103 of file TGeometry.h.

◆ SetGeomLevel()

virtual void TGeometry::SetGeomLevel ( Int_t level = 0 )

inlinevirtual

Definition at line 104 of file TGeometry.h.

◆ SetMatrix()

virtual void TGeometry::SetMatrix ( TRotMatrix * matrix = nullptr )

inlinevirtual

Definition at line 105 of file TGeometry.h.

◆ SetPosition() [1/4]

void TGeometry::SetPosition	(	Double_t	x,
		Double_t	y,
		Double_t	z
	)

inlinevirtual

Definition at line 139 of file TGeometry.h.

◆ SetPosition() [2/4]

void TGeometry::SetPosition	(	Float_t	x,
		Float_t	y,
		Float_t	z
	)

inlinevirtual

Definition at line 143 of file TGeometry.h.

◆ SetPosition() [3/4]

void TGeometry::SetPosition	(	TRotMatrix *	matrix,
		Double_t	x = `0`,
		Double_t	y = `0`,
		Double_t	z = `0`
	)

inlinevirtual

Definition at line 147 of file TGeometry.h.

◆ SetPosition() [4/4]

void TGeometry::SetPosition	(	TRotMatrix *	matrix,
		Float_t	x,
		Float_t	y,
		Float_t	z
	)

inlinevirtual

Definition at line 152 of file TGeometry.h.

◆ Streamer()

void TGeometry::Streamer ( TBuffer & b )

overridevirtual

Stream a class object.

Reimplemented from TObject.

Definition at line 573 of file TGeometry.cxx.

◆ StreamerNVirtual()

void TGeometry::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

inline

Definition at line 119 of file TGeometry.h.

◆ UpdateMatrix()

void TGeometry::UpdateMatrix ( TNode * node )

virtual

Update global rotation matrix/translation vector for this node this function must be called before invoking Local2Master.

Definition at line 635 of file TGeometry.cxx.

◆ UpdateTempMatrix() [1/3]

void TGeometry::UpdateTempMatrix	(	Double_t *	dx,
		Double_t *	rmat,
		Double_t	x,
		Double_t	y,
		Double_t	z,
		Double_t *	matrix,
		Double_t *	dxnew,
		Double_t *	rmatnew
	)

static

Compute new translation vector and global matrix.

dx old translation vector
rmat old global matrix
x,y,z offset of new local system with respect to mother
dxnew new translation vector
rmatnew new global rotation matrix

Definition at line 710 of file TGeometry.cxx.

◆ UpdateTempMatrix() [2/3]

void TGeometry::UpdateTempMatrix	(	Double_t	x,
		Double_t	y,
		Double_t	z,
		Double_t *	matrix,
		Bool_t	isReflection = `kFALSE`
	)

virtual

Update temp matrix.

Definition at line 675 of file TGeometry.cxx.

◆ UpdateTempMatrix() [3/3]

void TGeometry::UpdateTempMatrix	(	Double_t	x = `0`,
		Double_t	y = `0`,
		Double_t	z = `0`,
		TRotMatrix *	matrix = `nullptr`
	)

virtual

Update temp matrix.

Definition at line 661 of file TGeometry.cxx.

Member Data Documentation

◆ fBomb

Float_t TGeometry::fBomb

private

Pointers to shapes.

Definition at line 51 of file TGeometry.h.

◆ fCurrentNode

TNode* TGeometry::fCurrentNode

private

Pointers to current rotation matrices.

Definition at line 47 of file TGeometry.h.

◆ fGeomLevel

Int_t TGeometry::fGeomLevel

private

Definition at line 52 of file TGeometry.h.

◆ fIsReflection

Bool_t TGeometry::fIsReflection[kMAXLEVELS]

private

Definition at line 58 of file TGeometry.h.

◆ fMaterialPointer

TMaterial** TGeometry::fMaterialPointer

private

Pointer to current node.

Definition at line 48 of file TGeometry.h.

◆ fMaterials

THashList* TGeometry::fMaterials

private

Definition at line 42 of file TGeometry.h.

◆ fMatrices

THashList* TGeometry::fMatrices

private

Definition at line 43 of file TGeometry.h.

◆ fMatrix

TRotMatrix* TGeometry::fMatrix

private

Definition at line 46 of file TGeometry.h.

◆ fMatrixPointer

TRotMatrix** TGeometry::fMatrixPointer

private

Pointers to materials.

Definition at line 49 of file TGeometry.h.

◆ fNodes

TList* TGeometry::fNodes

private

Definition at line 45 of file TGeometry.h.

◆ fRotMatrix

Double_t TGeometry::fRotMatrix[kMAXLEVELS][kMatrixSize]

private

Definition at line 57 of file TGeometry.h.

◆ fShapePointer

TShape** TGeometry::fShapePointer

private

Pointers to rotation matrices.

Definition at line 50 of file TGeometry.h.

◆ fShapes

THashList* TGeometry::fShapes

private

Definition at line 44 of file TGeometry.h.

◆ fTranslation

Double_t TGeometry::fTranslation[kMAXLEVELS][kVectorSize]

private

Definition at line 56 of file TGeometry.h.

◆ fX

Double_t TGeometry::fX

private

Definition at line 53 of file TGeometry.h.

◆ fY

Double_t TGeometry::fY

private

Definition at line 54 of file TGeometry.h.

◆ fZ

Double_t TGeometry::fZ

private

The global translation of the current node.

Definition at line 55 of file TGeometry.h.

Libraries for TGeometry:

[legend]

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

graf3d/g3d/inc/TGeometry.h
graf3d/g3d/src/TGeometry.cxx

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGeometry() [1/3]

◆ TGeometry() [2/3]

◆ TGeometry() [3/3]

◆ ~TGeometry()

Member Function Documentation

◆ Browse()

◆ cd()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ Draw()

◆ FindObject() [1/2]

◆ FindObject() [2/2]

◆ GeomLevel()

◆ Get()

◆ GetBomb()

◆ GetCurrentMatrix()

◆ GetCurrentNode()

◆ GetCurrentPosition() [1/2]

◆ GetCurrentPosition() [2/2]

◆ GetCurrentReflection()

◆ GetListOfMaterials()

◆ GetListOfMatrices()

◆ GetListOfNodes()

◆ GetListOfShapes()

◆ GetMaterial()

◆ GetMaterialByNumber()

◆ GetNode()

◆ GetRotMatrix()

◆ GetRotMatrixByNumber()

◆ GetShape()

◆ GetShapeByNumber()

◆ IsA()

◆ IsFolder()

◆ Local2Master() [1/2]

◆ Local2Master() [2/2]

◆ ls()

◆ Master2Local() [1/2]

◆ Master2Local() [2/2]

◆ Node()

◆ operator=()

◆ PopLevel()

◆ PushLevel()

◆ RecursiveRemove()

◆ SetBomb()

◆ SetCurrentNode()

◆ SetGeomLevel()

◆ SetMatrix()

◆ SetPosition() [1/4]

◆ SetPosition() [2/4]

◆ SetPosition() [3/4]

◆ SetPosition() [4/4]

◆ Streamer()

◆ StreamerNVirtual()

◆ UpdateMatrix()

◆ UpdateTempMatrix() [1/3]

◆ UpdateTempMatrix() [2/3]

◆ UpdateTempMatrix() [3/3]

Member Data Documentation

◆ fBomb

◆ fCurrentNode

◆ fGeomLevel

◆ fIsReflection

◆ fMaterialPointer

◆ fMaterials

◆ fMatrices

◆ fMatrix

◆ fMatrixPointer

◆ fNodes

◆ fRotMatrix

◆ fShapePointer

◆ fShapes

◆ fTranslation