Volume families.

A volume family is represented by the class TGeoVolumeMulti. It represents a class of volumes having the same shape type and each member will be identified by the same name and volume ID. Any operation applied to a TGeoVolume equally affects all volumes in that family. The creation of a family is generally not a user task, but can be forced in particular cases:

TGeoManager::Volume(const char *vname, const char *shape, Int_t nmed);

TGeoVolume * Volume(const char *name, const char *shape, Int_t nmed, Float_t *upar, Int_t npar=0)

Create a volume in GEANT3 style.

Definition TGeoManager.cxx:1388

int

where VNAME is the family name, NMED is the medium number and SHAPE is the shape type that can be:

box    - for TGeoBBox
trd1   - for TGeoTrd1
trd2   - for TGeoTrd2
trap   - for TGeoTrap
gtra   - for TGeoGtra
para   - for TGeoPara
tube, tubs - for TGeoTube, TGeoTubeSeg
cone, cons - for TGeoCone, TgeoCons
eltu   - for TGeoEltu
ctub   - for TGeoCtub
pcon   - for TGeoPcon
pgon   - for TGeoPgon

Volumes are then added to a given family upon adding the generic name as node inside other volume:

TGeoVolume *box_family = gGeoManager->Volume("BOXES", "box", nmed);
...
gGeoManager->Node("BOXES", Int_t copy_no, "mother_name",
                  Double_t x, Double_t y, Double_t z, Int_t rot_index,
                  Bool_t is_only, Double_t *upar, Int_t npar);

here:

BOXES   - name of the family of boxes
copy_no - user node number for the created node
mother_name - name of the volume to which we want to add the node
x,y,z   - translation components
rot_index   - indx of a rotation matrix in the list of matrices
upar    - array of actual shape parameters
npar    - number of parameters

The parameters order and number are the same as in the corresponding shape constructors.

Another particular case where volume families are used is when we want that a volume positioned inside a container to match one ore more container limits. Suppose we want to position the same box inside 2 different volumes and we want the Z size to match the one of each container:

TGeoVolume *container1 = gGeoManager->MakeBox("C1", imed, 10,10,30);
TGeoVolume *container2 = gGeoManager->MakeBox("C2", imed, 10,10,20);
TGeoVolume *pvol       = gGeoManager->MakeBox("PVOL", jmed, 3,3,-1);
container1->AddNode(pvol, 1);
container2->AddNode(pvol, 1);

Note that the third parameter of PVOL is negative, which does not make sense as half-length on Z. This is interpreted as: when positioned, create a box replacing all invalid parameters with the corresponding dimensions of the container. This is also internally handled by the TGeoVolumeMulti class, which does not need to be instantiated by users.

Dividing volumes

Volumes can be divided according a pattern. The most simple division can be done along one axis, that can be: X, Y, Z, Phi, Rxy or Rxyz. Let's take the most simple case: we would like to divide a box in N equal slices along X coordinate, representing a new volume family. Supposing we already have created the initial box, this can be done like:

TGeoVolume *slicex = box->Divide("SLICEX", 1, N);

N

#define N

TGeoVolume::Divide

virtual TGeoVolume * Divide(const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step, Int_t numed=0, Option_t *option="")

Division a la G3.

Definition TGeoVolume.cxx:1103

where SLICE is the name of the new family representing all slices and 1 is the slicing axis. The meaning of the axis index is the following: for all volumes having shapes like box, trd1, trd2, trap, gtra or para - 1,2,3 means X,Y,Z; for tube, tubs, cone, cons - 1 means Rxy, 2 means phi and 3 means Z; for pcon and pgon - 2 means phi and 3 means Z; for spheres 1 means R and 2 means phi. In fact, the division operation has the same effect as positioning volumes in a given order inside the divided container - the advantage being that the navigation in such a structure is much faster. When a volume is divided, a volume family corresponding to the slices is created. In case all slices can be represented by a single shape, only one volume is added to the family and positioned N times inside the divided volume, otherwise, each slice will be represented by a distinct volume in the family. Divisions can be also performed in a given range of one axis. For that, one have to specify also the starting coordinate value and the step:

TGeoVolume *slicex = box->Divide("SLICEX", 1, N, start, step);

A check is always done on the resulting division range : if not fitting into the container limits, an error message is posted. If we will browse the divided volume we will notice that it will contain N nodes starting with index 1 upto N. The first one has the lower X limit at START position, while the last one will have the upper X limit at START+N*STEP. The resulting slices cannot be positioned inside an other volume (they are by default positioned inside the divided one) but can be further divided and may contain other volumes:

TGeoVolume *slicey = slicex->Divide("SLICEY", 2, N1);

slicey->AddNode(other_vol, index, some_matrix);

index

Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t index

Definition TGWin32VirtualXProxy.cxx:168

When doing that, we have to remember that SLICEY represents a family, therefore all members of the family will be divided on Y and the other volume will be added as node inside all. In the example above all the resulting slices had the same shape as the divided volume (box). This is not always the case. For instance, dividing a volume with TUBE shape on PHI axis will create equal slices having TUBESEG shape. Other divisions can also create slices having shapes with different dimensions, e.g. the division of a TRD1 volume on Z. When positioning volumes inside slices, one can do it using the generic volume family (e.g. slicey). This should be done as if the coordinate system of the generic slice was the same as the one of the divided volume. The generic slice in case of PHI division is centered with respect to X axis. If the family contains slices of different sizes, any volume positioned inside should fit into the smallest one. Examples for specific divisions according to shape types can be found inside shape classes.

TGeoVolume::Divide(N, Xmin, Xmax, "X");

The GEANT3 option MANY is supported by TGeoVolumeOverlap class. An overlapping volume is in fact a virtual container that does not represent a physical object. It contains a list of nodes that are not its daughters but that must be checked always before the container itself. This list must be defined by users and it is checked and resolved in a priority order. Note that the feature is non-standard to geometrical modelers and it was introduced just to support conversions of GEANT3 geometries, therefore its extensive usage should be avoided.

Definition at line 266 of file TGeoVolume.h.

Public Member Functions
	TGeoVolumeMulti ()
	dummy constructor

	TGeoVolumeMulti (const char name, TGeoMedium med=nullptr)
	default constructor

	~TGeoVolumeMulti () override
	Destructor.

TGeoNode *	AddNode (TGeoVolume vol, Int_t copy_no, TGeoMatrix mat, Option_t *option="") override
	Add a new node to the list of nodes.

void	AddNodeOverlap (TGeoVolume vol, Int_t copy_no, TGeoMatrix mat, Option_t *option="") override
	Add a new node to the list of nodes, This node is possibly overlapping with other daughters of the volume or extruding the volume.

void	AddVolume (TGeoVolume *vol)
	Add a volume with valid shape to the list of volumes.

TGeoVolume *	Divide (const char divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step, Int_t numed=0, Option_t option="") override
	division of multiple volumes

Int_t	GetAxis () const

TGeoShape *	GetLastShape () const
	Returns the last shape.

Int_t	GetNdiv () const

Int_t	GetNvolumes () const

Double_t	GetStart () const

Double_t	GetStep () const

TGeoVolume *	GetVolume (Int_t id) const

TClass *	IsA () const override

Bool_t	IsVolumeMulti () const override

TGeoVolume *	MakeCopyVolume (TGeoShape *newshape) override
	Make a copy of this volume build a volume with same name, shape and medium.

void	SetLineColor (Color_t lcolor) override
	Set the line color for all components.

void	SetLineStyle (Style_t lstyle) override
	Set the line style for all components.

void	SetLineWidth (Width_t lwidth) override
	Set the line width for all components.

void	SetMedium (TGeoMedium *medium) override
	Set medium for a multiple volume.

void	SetVisibility (Bool_t vis=kTRUE) override
	Set visibility for all components.

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TGeoVolume
	TGeoVolume ()
	dummy constructor

	TGeoVolume (const char name, const TGeoShape shape, const TGeoMedium *med=nullptr)
	default constructor

	~TGeoVolume () override
	Destructor.

void	AddNodeOffset (TGeoVolume vol, Int_t copy_no, Double_t offset=0, Option_t option="")
	Add a division node to the list of nodes.

void	Browse (TBrowser *b) override
	How to browse a volume.

Double_t	Capacity () const
	Computes the capacity of this [cm^3] as the capacity of its shape.

virtual void	cd (Int_t inode) const
	Actualize matrix of node indexed `<inode>`

void	CheckGeometry (Int_t nrays=1, Double_t startx=0, Double_t starty=0, Double_t startz=0) const
	Shoot nrays with random directions from starting point (startx, starty, startz) in the reference frame of this volume.

void	CheckOverlaps (Double_t ovlp=0.1, Option_t *option="") const
	Overlap checking tool.

void	CheckShape (Int_t testNo, Int_t nsamples=10000, Option_t *option="")
	Tests for checking the shape navigation algorithms. See TGeoShape::CheckShape()

void	CheckShapes ()
	check for negative parameters in shapes.

void	CleanAll ()
	Clean data of the volume.

void	ClearNodes ()

void	ClearShape ()
	Clear the shape of this volume from the list held by the current manager.

virtual void	ClearThreadData () const

void	CloneNodesAndConnect (TGeoVolume *newmother) const
	Clone the array of nodes.

virtual TGeoVolume *	CloneVolume () const
	Clone this volume.

Bool_t	Contains (const Double_t *point) const

Int_t	CountNodes (Int_t nlevels=1000, Int_t option=0)
	Count total number of subnodes starting from this volume, nlevels down.

virtual void	CreateThreadData (Int_t nthreads)

Int_t	DistancetoPrimitive (Int_t px, Int_t py) override
	compute the closest distance of approach from point px,py to this volume

void	Draw (Option_t *option="") override
	draw top volume according to option

virtual void	DrawOnly (Option_t *option="")
	draw only this volume

void	ExecuteEvent (Int_t event, Int_t px, Int_t py) override
	Execute mouse actions on this volume.

Int_t	Export (const char filename, const char name="", Option_t *option="")
	Export this volume to a file.

Bool_t	FindMatrixOfDaughterVolume (TGeoVolume *vol) const
	Find a daughter node having VOL as volume and fill TGeoManager::fHMatrix with its global matrix.

TGeoNode *	FindNode (const char *name) const
	search a daughter inside the list of nodes

void	FindOverlaps () const
	loop all nodes marked as overlaps and find overlapping brothers

virtual Int_t	GetByteCount () const
	get the total size in bytes for this volume

virtual Int_t	GetCurrentNodeIndex () const

TObject *	GetField () const

TGeoPatternFinder *	GetFinder () const

TGeoExtension *	GetFWExtension () const

TGeoManager *	GetGeoManager () const

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

Int_t	GetIndex (const TGeoNode *node) const
	get index number for a given daughter

TGeoMaterial *	GetMaterial () const

TGeoMedium *	GetMedium () const

Int_t	GetNdaughters () const

virtual Int_t	GetNextNodeIndex () const

TGeoNode *	GetNode (const char *name) const
	get the pointer to a daughter node

TGeoNode *	GetNode (Int_t i) const

Int_t	GetNodeIndex (const TGeoNode node, Int_t check_list, Int_t ncheck) const
	Get the index of a daughter within check_list by providing the node pointer.

TObjArray *	GetNodes ()

Int_t	GetNtotal () const

Int_t	GetNumber () const

char *	GetObjectInfo (Int_t px, Int_t py) const override
	Get volume info for the browser.

Bool_t	GetOptimalVoxels () const
	Returns true if cylindrical voxelization is optimal.

Option_t *	GetOption () const override

const char *	GetPointerName () const
	Provide a pointer name containing uid.

Int_t	GetRefCount () const

TGeoShape *	GetShape () const

Char_t	GetTransparency () const

TGeoExtension *	GetUserExtension () const

TGeoVoxelFinder *	GetVoxels () const
	Getter for optimization structure.

void	Grab ()

void	GrabFocus ()
	Move perspective view focus to this volume.

TGeoExtension *	GrabFWExtension () const
	Get a copy of the framework extension pointer.

TGeoExtension *	GrabUserExtension () const
	Get a copy of the user extension pointer.

void	Gsord (Int_t)

void	InspectMaterial () const
	Inspect the material for this volume.

void	InspectShape () const

void	InvisibleAll (Bool_t flag=kTRUE)
	Make volume and each of it daughters (in)visible.

Bool_t	IsActive () const

Bool_t	IsActiveDaughters () const

Bool_t	IsAdded () const

Bool_t	IsAllInvisible () const
	Return TRUE if volume and all daughters are invisible.

virtual Bool_t	IsAssembly () const
	Returns true if the volume is an assembly or a scaled assembly.

Bool_t	IsCylVoxels () const

Bool_t	IsFolder () const override
	Return TRUE if volume contains nodes.

Bool_t	IsOverlappingCandidate () const

Bool_t	IsRaytracing () const
	Check if the painter is currently ray-tracing the content of this volume.

Bool_t	IsReplicated () const

Bool_t	IsRunTime () const

Bool_t	IsSelected () const

Bool_t	IsStyleDefault () const
	check if the visibility and attributes are the default ones

Bool_t	IsTopVolume () const
	True if this is the top volume of the geometry.

Bool_t	IsValid () const

Bool_t	IsVisContainers () const

virtual Bool_t	IsVisible () const

Bool_t	IsVisibleDaughters () const

Bool_t	IsVisLeaves () const

Bool_t	IsVisOnly () const

Bool_t	IsXYZVoxels () const

TH2F *	LegoPlot (Int_t ntheta=20, Double_t themin=0., Double_t themax=180., Int_t nphi=60, Double_t phimin=0., Double_t phimax=360., Double_t rmin=0., Double_t rmax=9999999, Option_t *option="")
	Generate a lego plot fot the top volume, according to option.

void	MakeCopyNodes (const TGeoVolume *other)
	make a new list of nodes and copy all nodes of other volume inside

TGeoVolume *	MakeReflectedVolume (const char *newname="") const
	Make a copy of this volume which is reflected with respect to XY plane.

Bool_t	OptimizeVoxels ()
	Perform an extensive sampling to find which type of voxelization is most efficient.

void	Paint (Option_t *option="") override
	paint volume

void	Print (Option_t *option="") const override
	Print volume info.

void	PrintNodes () const
	print nodes

void	PrintVoxels () const
	Print the voxels for this volume.

void	RandomPoints (Int_t npoints=1000000, Option_t *option="")
	Draw random points in the bounding box of this volume.

void	RandomRays (Int_t nrays=10000, Double_t startx=0, Double_t starty=0, Double_t startz=0, const char *target_vol=nullptr, Bool_t check_norm=kFALSE)
	Random raytracing method.

void	Raytrace (Bool_t flag=kTRUE)
	Draw this volume with current settings and perform raytracing in the pad.

void	RegisterYourself (Option_t *option="")
	Register the volume and all materials/media/matrices/shapes to the manager.

void	Release ()

void	RemoveNode (TGeoNode *node)
	Remove an existing daughter.

TGeoNode *	ReplaceNode (TGeoNode nodeorig, TGeoShape newshape=nullptr, TGeoMatrix newpos=nullptr, TGeoMedium newmed=nullptr)
	Replace an existing daughter with a new volume having the same name but possibly a new shape, position or medium.

void	ReplayCreation (const TGeoVolume *other)
	Recreate the content of the other volume without pointer copying.

void	ResetTransparency (Char_t transparency=-1)

void	SaveAs (const char filename="", Option_t option="") const override
	Save geometry having this as top volume as a C++ macro.

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

void	SelectVolume (Bool_t clear=kFALSE)
	Select this volume as matching an arbitrary criteria.

void	SetActiveDaughters (Bool_t flag=kTRUE)

void	SetActivity (Bool_t flag=kTRUE)

void	SetAdded ()

void	SetAsTopVolume ()
	Set this volume as the TOP one (the whole geometry starts from here)

void	SetAttVisibility (Bool_t vis)

void	SetCurrentPoint (Double_t x, Double_t y, Double_t z)
	Set the current tracking point.

void	SetCylVoxels (Bool_t flag=kTRUE)

void	SetField (TObject *field)

void	SetFinder (TGeoPatternFinder *finder)

void	SetFWExtension (TGeoExtension *ext)
	Connect framework defined extension to the volume.

void	SetInvisible ()

void	SetNodes (TObjArray *nodes)

void	SetNtotal (Int_t ntotal)

void	SetNumber (Int_t number)

void	SetOption (const char *option)
	Set the current options (none implemented)

void	SetOverlappingCandidate (Bool_t flag)

void	SetReplicated ()

void	SetShape (const TGeoShape *shape)
	set the shape associated with this volume

void	SetTransparency (Char_t transparency=0)

void	SetUserExtension (TGeoExtension *ext)
	Connect user-defined extension to the volume.

void	SetVisContainers (Bool_t flag=kTRUE) override
	Set visibility for containers.

void	SetVisLeaves (Bool_t flag=kTRUE) override
	Set visibility for leaves.

void	SetVisOnly (Bool_t flag=kTRUE) override
	Set visibility for leaves.

void	SetVoxelFinder (TGeoVoxelFinder *finder)

void	SortNodes ()
	sort nodes by decreasing volume of the bounding box.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

void	UnmarkSaved ()
	Reset SavePrimitive bits.

Bool_t	Valid () const
	Check if the shape of this volume is valid.

void	VisibleDaughters (Bool_t vis=kTRUE)
	set visibility for daughters

void	Voxelize (Option_t *option)
	build the voxels for this volume

Double_t	Weight (Double_t precision=0.01, Option_t *option="va")
	Estimate the weight of a volume (in kg) with SIGMA(M)/M better than PRECISION.

Double_t	WeightA () const
	Analytical computation of the weight.

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 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	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 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	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)

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.

Public Member Functions inherited from TGeoAtt
	TGeoAtt ()
	Default constructor.

	TGeoAtt (Option_t vis_opt, Option_t activity_opt="", Option_t *optimization_opt="")
	Constructor.

virtual	~TGeoAtt ()
	Destructor.

Bool_t	IsActive () const

Bool_t	IsActiveDaughters () const

Bool_t	IsVisBranch () const

Bool_t	IsVisContainers () const

Bool_t	IsVisDaughters () const

Bool_t	IsVisible () const

Bool_t	IsVisLeaves () const

Bool_t	IsVisOnly () const

Bool_t	IsVisRaytrace () const

Bool_t	IsVisStreamed () const

Bool_t	IsVisTouched () const

void	ResetAttBit (UInt_t f)

void	SetActiveDaughters (Bool_t flag=kTRUE)

void	SetActivity (Bool_t flag=kTRUE)

void	SetAttBit (UInt_t f)

void	SetAttBit (UInt_t f, Bool_t set)

void	SetOptimization (Option_t *option)
	Set optimization flags.

void	SetVisBranch ()
	Set branch type visibility.

void	SetVisDaughters (Bool_t vis=kTRUE)
	Set visibility for the daughters.

void	SetVisRaytrace (Bool_t flag=kTRUE)

void	SetVisStreamed (Bool_t vis=kTRUE)
	Mark attributes as "streamed to file".

void	SetVisTouched (Bool_t vis=kTRUE)
	Mark visualization attributes as "modified".

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Bool_t	TestAttBit (UInt_t f) const

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

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TAttFill
	TAttFill ()
	AttFill default constructor.

	TAttFill (Color_t fcolor, Style_t fstyle)
	AttFill normal constructor.

virtual	~TAttFill ()
	AttFill destructor.

void	Copy (TAttFill &attfill) const
	Copy this fill attributes to a new TAttFill.

virtual Color_t	GetFillColor () const
	Return the fill area color.

virtual Style_t	GetFillStyle () const
	Return the fill area style.

virtual Bool_t	IsTransparent () const

virtual void	Modify ()
	Change current fill area attributes if necessary.

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

virtual void	SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001)
	Save fill attributes as C++ statement(s) on output stream out.

virtual void	SetFillAttributes ()
	Invoke the DialogCanvas Fill attributes.

virtual void	SetFillColor (Color_t fcolor)
	Set the fill area color.

virtual void	SetFillColorAlpha (Color_t fcolor, Float_t falpha)
	Set a transparent fill color.

virtual void	SetFillStyle (Style_t fstyle)
	Set the fill area style.

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

Public Member Functions inherited from TAtt3D
	TAtt3D ()

virtual	~TAtt3D ()

virtual void	Sizeof3D () const
	Set total size of this 3D object (used by X3D interface).

void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)

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 TGeoVolume
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static void	CreateDummyMedium ()
	Create a dummy medium.

static const char *	DeclFileName ()

static TGeoMedium *	DummyMedium ()

static TGeoVolume *	Import (const char filename, const char name="", Option_t *option="")
	Import a volume from a file.

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.

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

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

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

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

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

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Static Public Member Functions inherited from TAtt3D
static TClass *	Class ()

static const char *	Class_Name ()

static constexpr Version_t	Class_Version ()

static const char *	DeclFileName ()

Private Member Functions
	TGeoVolumeMulti (const TGeoVolumeMulti &)=delete

TGeoVolumeMulti &	operator= (const TGeoVolumeMulti &)=delete

Private Attributes
Bool_t	fAttSet

Int_t	fAxis

TGeoVolumeMulti *	fDivision

Int_t	fNdiv

Int_t	fNumed

Double_t	fStart

Double_t	fStep

TObjArray *	fVolumes

Additional Inherited Members
Public Types inherited from TGeoVolume
enum	EGeoVolumeTypes { kVolumeReplicated = (1ULL << ( 14 )) , kVolumeSelected = (1ULL << ( 15 )) , kVolumeDiv = (1ULL << ( 16 )) , kVolumeOverlap = (1ULL << ( 17 )) , kVolumeImportNodes = (1ULL << ( 18 )) , kVolumeMulti = (1ULL << ( 19 )) , kVoxelsXYZ = (1ULL << ( 20 )) , kVoxelsCyl = (1ULL << ( 21 )) , kVolumeClone = (1ULL << ( 22 )) , kVolumeAdded = (1ULL << ( 23 )) , kVolumeOC = (1ULL << ( 21 )) }

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 Types inherited from TGeoAtt
enum	{ kBitMask = 0x00ffffff }

enum	EGeoActivityAtt { kActOverride = (1ULL << ( 8 )) , kActNone = (1ULL << ( 9 )) , kActThis = (1ULL << ( 10 )) , kActDaughters = (1ULL << ( 11 )) }

enum	EGeoOptimizationAtt { kUseBoundingBox = (1ULL << ( 16 )) , kUseVoxels = (1ULL << ( 17 )) , kUseGsord = (1ULL << ( 18 )) }

enum	EGeoSavePrimitiveAtt { kSavePrimitiveAtt = (1ULL << ( 19 )) , kSaveNodesAtt = (1ULL << ( 20 )) }

enum	EGeoVisibilityAtt { kVisOverride = (1ULL << ( 0 )) , kVisNone = (1ULL << ( 1 )) , kVisThis = (1ULL << ( 2 )) , kVisDaughters = (1ULL << ( 3 )) , kVisOneLevel = (1ULL << ( 4 )) , kVisStreamed = (1ULL << ( 5 )) , kVisTouched = (1ULL << ( 6 )) , kVisOnScreen = (1ULL << ( 7 )) , kVisContainers = (1ULL << ( 12 )) , kVisOnly = (1ULL << ( 13 )) , kVisBranch = (1ULL << ( 14 )) , kVisRaytrace = (1ULL << ( 15 )) }

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

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 inherited from TGeoVolume
TObject *	fField
	pointer to TGeoManager owning this volume

TGeoPatternFinder *	fFinder
	dummy medium

TGeoExtension *	fFWExtension
	Transient user-defined extension to volumes.

TGeoManager *	fGeoManager

TGeoMedium *	fMedium

TObjArray *	fNodes

Int_t	fNtotal

Int_t	fNumber
	option - if any

TString	fOption
	just a hook for now

Int_t	fRefCount

TGeoShape *	fShape

Char_t	fTransparency

TGeoExtension *	fUserExtension

TGeoVoxelFinder *	fVoxels

Protected Attributes inherited from TNamed
TString	fName

TString	fTitle

Protected Attributes inherited from TGeoAtt
UInt_t	fGeoAtt

Protected Attributes inherited from TAttLine
Color_t	fLineColor
	Line color.

Style_t	fLineStyle
	Line style.

Width_t	fLineWidth
	Line width.

Protected Attributes inherited from TAttFill
Color_t	fFillColor
	Fill area color.

Style_t	fFillStyle
	Fill area style.

Static Protected Attributes inherited from TGeoVolume
static TGeoMedium *	fgDummyMedium = nullptr

#include <TGeoVolume.h>

Inheritance diagram for TGeoVolumeMulti:

[legend]

Constructor & Destructor Documentation

◆ TGeoVolumeMulti() [1/3]

TGeoVolumeMulti::TGeoVolumeMulti ( const TGeoVolumeMulti & )

privatedelete

◆ TGeoVolumeMulti() [2/3]

TGeoVolumeMulti::TGeoVolumeMulti ( )

dummy constructor

Definition at line 2545 of file TGeoVolume.cxx.

◆ TGeoVolumeMulti() [3/3]

TGeoVolumeMulti::TGeoVolumeMulti	(	const char *	name,
		TGeoMedium *	med = `nullptr`
	)

default constructor

Definition at line 2561 of file TGeoVolume.cxx.

◆ ~TGeoVolumeMulti()

TGeoVolumeMulti::~TGeoVolumeMulti ( )

override

Destructor.

Definition at line 2581 of file TGeoVolume.cxx.

Member Function Documentation

◆ AddNode()

TGeoNode * TGeoVolumeMulti::AddNode	(	TGeoVolume *	vol,
		Int_t	copy_no,
		TGeoMatrix *	mat,
		Option_t *	option = `""`
	)

overridevirtual

Add a new node to the list of nodes.

This is the usual method for adding daughters inside the container volume.

Reimplemented from TGeoVolume.

Definition at line 2627 of file TGeoVolume.cxx.

◆ AddNodeOverlap()

void TGeoVolumeMulti::AddNodeOverlap	(	TGeoVolume *	vol,
		Int_t	copy_no,
		TGeoMatrix *	mat,
		Option_t *	option = `""`
	)

overridevirtual

Add a new node to the list of nodes, This node is possibly overlapping with other daughters of the volume or extruding the volume.

Reimplemented from TGeoVolume.

Definition at line 2648 of file TGeoVolume.cxx.

◆ AddVolume()

void TGeoVolumeMulti::AddVolume ( TGeoVolume * vol )

Add a volume with valid shape to the list of volumes.

Copy all existing nodes to this volume

Definition at line 2591 of file TGeoVolume.cxx.

◆ Class()

static TClass * TGeoVolumeMulti::Class ( )

static

Returns: TClass describing this class

◆ Class_Name()

static const char * TGeoVolumeMulti::Class_Name ( )

static

Returns: Name of this class

◆ Class_Version()

static constexpr Version_t TGeoVolumeMulti::Class_Version ( )

inlinestaticconstexpr

Returns: Version of this class

Definition at line 306 of file TGeoVolume.h.

◆ DeclFileName()

static const char * TGeoVolumeMulti::DeclFileName ( )

inlinestatic

Returns: Name of the file containing the class declaration

Definition at line 306 of file TGeoVolume.h.

◆ Divide()

TGeoVolume * TGeoVolumeMulti::Divide	(	const char *	divname,
		Int_t	iaxis,
		Int_t	ndiv,
		Double_t	start,
		Double_t	step,
		Int_t	numed = `0`,
		Option_t *	option = `""`
	)

overridevirtual

TClass * TGeoVolumeMulti::IsA ( ) const

inlineoverridevirtual

Returns: TClass describing current object

Reimplemented from TGeoVolume.

Definition at line 306 of file TGeoVolume.h.

◆ IsVolumeMulti()

Bool_t TGeoVolumeMulti::IsVolumeMulti ( ) const

inlineoverridevirtual

Reimplemented from TGeoVolume.

Definition at line 298 of file TGeoVolume.h.

◆ MakeCopyVolume()

TGeoVolume * TGeoVolumeMulti::MakeCopyVolume ( TGeoShape * newshape )

overridevirtual

Make a copy of this volume build a volume with same name, shape and medium.

void TGeoVolumeMulti::Streamer ( TBuffer & R__b )

overridevirtual

Stream an object of class TGeoVolume.

Reimplemented from TGeoVolume.

◆ StreamerNVirtual()

void TGeoVolumeMulti::StreamerNVirtual ( TBuffer & ClassDef_StreamerNVirtual_b )

TObjArray* TGeoVolumeMulti::fVolumes

private

Definition at line 268 of file TGeoVolume.h.

Libraries for TGeoVolumeMulti:

[legend]

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

geom/geom/inc/TGeoVolume.h
geom/geom/src/TGeoVolume.cxx

Dividing volumes

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Constructor & Destructor Documentation

◆ TGeoVolumeMulti() [1/3]

◆ TGeoVolumeMulti() [2/3]

◆ TGeoVolumeMulti() [3/3]

◆ ~TGeoVolumeMulti()

Member Function Documentation

◆ AddNode()

◆ AddNodeOverlap()

◆ AddVolume()

◆ Class()

◆ Class_Name()

◆ Class_Version()

◆ DeclFileName()

◆ Divide()

◆ GetAxis()

◆ GetLastShape()

◆ GetNdiv()

◆ GetNvolumes()

◆ GetStart()

◆ GetStep()

◆ GetVolume()

◆ IsA()

◆ IsVolumeMulti()

◆ MakeCopyVolume()

◆ operator=()

◆ SetLineColor()

◆ SetLineStyle()

◆ SetLineWidth()

◆ SetMedium()

◆ SetVisibility()

◆ Streamer()

◆ StreamerNVirtual()

Member Data Documentation

◆ fAttSet

◆ fAxis

◆ fDivision

◆ fNdiv

◆ fNumed

◆ fStart

◆ fStep

◆ fVolumes