TGeoShape Class Reference

Base abstract class for all shapes.

Shapes are geometrical objects that provide the basic modelling functionality. They provide the definition of the LOCAL frame of coordinates, with respect to which they are defined. Any implementation of a shape deriving from the base TGeoShape class has to provide methods for :

• finding out if a point defined in their local frame is or not contained inside;
• computing the distance from a local point to getting outside/entering the shape, given a known direction;
• computing the maximum distance in any direction from a local point that does NOT result in a boundary crossing of the shape (safe distance);
• computing the cosines of the normal vector to the crossed shape surface, given a starting local point and an ongoing direction. All the features above are globally managed by the modeller in order to provide navigation functionality. In addition to those, shapes have also to implement additional specific abstract methods :
• computation of the minimal box bounding the shape, given that this box have to be aligned with the local coordinates;
• algorithms for dividing the shape along a given axis and producing resulting divisions volumes.

The modeler currently provides a set of 16 basic shapes, which we will call primitives. It also provides a special class allowing the creation of shapes made as a result of boolean operations between primitives. These are called composite shapes and the composition operation can be recursive (composition of composites). This allows the creation of a quite large number of different shape topologies and combinations.

Named shapes register themselves to the manager class at creation time. The manager is responsible for their final deletion. Shapes can be created using their default constructor if their retrieval by name is not needed, but in this case they are owned by the user. A shape may be referenced by several volumes, therefore its deletion is not possible once volumes were defined based on it.

Creating shapes

Shape objects embed only the minimum set of parameters that are fully describing a valid physical shape. For instance, a tube is represented by its half length, the minimum radius and the maximum radius. Shapes are used together with media in order to create volumes, which in their turn are the main components of the geometrical tree. A specific shape can be created stand-alone :

TGeoBBox *box = new TGeoBBox("s_box", halfX, halfY, halfZ); // named
TGeoTube *tub = new TGeoTube(rmin, rmax, halfZ);            // no name
...  (see each specific shape constructors)

Sometimes it is much easier to create a volume having a given shape in one step, since shapes are not directly linked in the geometrical tree but volumes are :

TGeoVolume *vol_box = gGeoManager->MakeBox("BOX_VOL", "mat1", halfX, halfY, halfZ);
TGeoVolume *vol_tub = gGeoManager->MakeTube("TUB_VOL", "mat2", rmin, rmax, halfZ);
...  (see MakeXXX() utilities in TGeoManager class)

Shape queries

Note that global queries related to a geometry are handled by the manager class. However, shape-related queries might be sometimes useful.

Bool_t TGeoShape::Contains(const Double_t *point[3])

this method returns true if POINT is actually inside the shape. The point has to be defined in the local shape reference. For instance, for a box having DX, DY and DZ half-lengths a point will be considered inside if :

| -DX <= point[0] <= DX
| -DY <= point[1] <= DY
| -DZ <= point[2] <= DZ

Double_t TGeoShape::DistFromInside(Double_t *point[3], Double_t *dir[3], Int_t iact, Double_t step, Double_t *safe)

computes the distance to exiting a shape from a given point INSIDE, along a given direction. The direction is given by its director cosines with respect to the local shape coordinate system. This method provides additional information according the value of IACT input parameter :

• IACT = 0 => compute only safe distance and fill it at the location given by SAFE
• IACT = 1 => a proposed STEP is supplied. The safe distance is computed first. If this is bigger than STEP than the proposed step is approved and returned by the method since it does not cross the shape boundaries. Otherwise, the distance to exiting the shape is computed and returned.
• IACT = 2 => compute both safe distance and distance to exiting, ignoring the proposed step.
• IACT > 2 => compute only the distance to exiting, ignoring anything else.

Double_t TGeoShape::DistFromOutside(Double_t *point[3], Double_t *dir[3], Int_t iact, Double_t step, Double_t *safe)

computes the distance to entering a shape from a given point OUTSIDE. Acts in the same way as B).

Double_t Safety(const Double_t *point[3], Bool_t inside)

compute maximum shift of a point in any direction that does not change its INSIDE/OUTSIDE state (does not cross shape boundaries). The state of the point have to be properly supplied.

Double_t *Normal(Double_t *point[3], Double_t *dir[3], Bool_t inside)

returns director cosines of normal to the crossed shape surface from a given point towards a direction. One has to specify if the point is inside or outside shape. According to this, the normal will be outwards or inwards shape respectively. Normal components are statically stored by shape class, so it has to be copied after retrieval in a different array.

Dividing shapes

Shapes can generally be divided along a given axis. Supported axis are X, Y, Z, Rxy, Phi, Rxyz. A given shape cannot be divided however on any axis. The general rule is that that divisions are possible on whatever axis that produces still known shapes as slices. The division of shapes should not be performed by TGeoShape::Divide() calls, but rather by TGeoVolume::Divide(). The algorithm for dividing a specific shape is known by the shape object, but is always invoked in a generic way from the volume level. Details on how to do that can be found in TGeoVolume class. One can see how all division options are interpreted and which is their result inside specific shape classes.

Definition at line 25 of file TGeoShape.h.

Public Types
enum	EShapeType {   kBitMask32 = 0xffffffff , kGeoNoShape = 0 , kGeoBad = (1ULL << ( 0 )) , kGeoRSeg = (1ULL << ( 1 )) ,   kGeoPhiSeg = (1ULL << ( 2 )) , kGeoThetaSeg = (1ULL << ( 3 )) , kGeoVisX = (1ULL << ( 4 )) , kGeoVisY = (1ULL << ( 5 )) ,   kGeoVisZ = (1ULL << ( 6 )) , kGeoRunTimeShape = (1ULL << ( 7 )) , kGeoInvalidShape = (1ULL << ( 8 )) , kGeoTorus = (1ULL << ( 9 )) ,   kGeoBox = (1ULL << ( 10 )) , kGeoPara = (1ULL << ( 11 )) , kGeoSph = (1ULL << ( 12 )) , kGeoTube = (1ULL << ( 13 )) ,   kGeoTubeSeg = (1ULL << ( 14 )) , kGeoCone = (1ULL << ( 15 )) , kGeoConeSeg = (1ULL << ( 16 )) , kGeoPcon = (1ULL << ( 17 )) ,   kGeoPgon = (1ULL << ( 18 )) , kGeoArb8 = (1ULL << ( 19 )) , kGeoEltu = (1ULL << ( 20 )) , kGeoTrap = (1ULL << ( 21 )) ,   kGeoCtub = (1ULL << ( 22 )) , kGeoTrd1 = (1ULL << ( 23 )) , kGeoTrd2 = (1ULL << ( 24 )) , kGeoComb = (1ULL << ( 25 )) ,   kGeoClosedShape = (1ULL << ( 26 )) , kGeoXtru = (1ULL << ( 27 )) , kGeoParaboloid = (1ULL << ( 28 )) , kGeoHalfSpace = (1ULL << ( 29 )) ,   kGeoHype = (1ULL << ( 30 )) , kGeoSavePrimitive = (1ULL << ( 20 )) }
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
	TGeoShape ()
	Default constructor.
	TGeoShape (const char *name)
	Default constructor.
virtual	~TGeoShape ()
	Destructor.
virtual void	AfterStreamer ()
virtual Double_t	Capacity () const =0
void	CheckShape (Int_t testNo, Int_t nsamples=10000, Option_t *option="")
	Test for shape navigation methods.
virtual void	ClearThreadData () const
virtual void	ComputeBBox ()=0
virtual void	ComputeNormal (const Double_t *point, const Double_t *dir, Double_t *norm)=0
virtual void	ComputeNormal_v (const Double_t *, const Double_t *, Double_t *, Int_t)
virtual Bool_t	Contains (const Double_t *point) const =0
virtual void	Contains_v (const Double_t *, Bool_t *, Int_t) const
virtual Bool_t	CouldBeCrossed (const Double_t *point, const Double_t *dir) const =0
virtual void	CreateThreadData (Int_t)
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)=0
	Computes distance from point (px,py) to the object.
virtual Double_t	DistFromInside (const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=nullptr) const =0
virtual void	DistFromInside_v (const Double_t *, const Double_t *, Double_t *, Int_t, Double_t *) const
virtual Double_t	DistFromOutside (const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=nullptr) const =0
virtual void	DistFromOutside_v (const Double_t *, const Double_t *, Double_t *, Int_t, Double_t *) const
virtual TGeoVolume *	Divide (TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)=0
virtual void	Draw (Option_t *option="")
	Draw this shape.
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute mouse actions on this shape.
virtual const char *	GetAxisName (Int_t iaxis) const =0
virtual Double_t	GetAxisRange (Int_t iaxis, Double_t &xlo, Double_t &xhi) const =0
virtual void	GetBoundingCylinder (Double_t *param) const =0
virtual const TBuffer3D &	GetBuffer3D (Int_t reqSections, Bool_t localFrame) const
	Stub implementation to avoid forcing implementation at this stage.
virtual Int_t	GetByteCount () const =0
virtual Int_t	GetFittingBox (const TGeoBBox *parambox, TGeoMatrix *mat, Double_t &dx, Double_t &dy, Double_t &dz) const =0
Int_t	GetId () const
virtual TGeoShape *	GetMakeRuntimeShape (TGeoShape *mother, TGeoMatrix *mat) const =0
virtual void	GetMeshNumbers (Int_t &, Int_t &, Int_t &) const
virtual const char *	GetName () const
	Get the shape name.
virtual Int_t	GetNmeshVertices () const
const char *	GetPointerName () const
	Provide a pointer name containing uid.
virtual Bool_t	GetPointsOnSegments (Int_t npoints, Double_t *array) const =0
virtual void	InspectShape () const =0
void	InvertShapeBit (UInt_t f)
virtual TClass *	IsA () const
virtual Bool_t	IsAssembly () const
virtual Bool_t	IsComposite () const
virtual Bool_t	IsCylType () const =0
virtual Bool_t	IsReflected () const
Bool_t	IsRunTimeShape () const
Bool_t	IsValid () const
virtual Bool_t	IsValidBox () const =0
virtual Bool_t	IsVecGeom () const
virtual TBuffer3D *	MakeBuffer3D () const
virtual void	Paint (Option_t *option="")
	Paint this shape.
void	ResetShapeBit (UInt_t f)
virtual Double_t	Safety (const Double_t *point, Bool_t in=kTRUE) const =0
virtual void	Safety_v (const Double_t *, const Bool_t *, Double_t *, Int_t) const
virtual void	SetDimensions (Double_t *param)=0
void	SetId (Int_t id)
virtual void	SetPoints (Double_t *points) const =0
virtual void	SetPoints (Float_t *points) const =0
void	SetRuntime (Bool_t flag=kTRUE)
virtual void	SetSegsAndPols (TBuffer3D &buff) const =0
void	SetShapeBit (UInt_t f)
void	SetShapeBit (UInt_t f, Bool_t set)
	Equivalent of TObject::SetBit.
Int_t	ShapeDistancetoPrimitive (Int_t numpoints, Int_t px, Int_t py) const
	Returns distance to shape primitive mesh.
virtual void	Sizeof3D () const =0
virtual void	Streamer (TBuffer &)
	Stream an object of class TObject.
void	StreamerNVirtual (TBuffer &ClassDef_StreamerNVirtual_b)
Bool_t	TestShapeBit (UInt_t f) const
Int_t	TestShapeBits (UInt_t f) const
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 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 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.
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 Double_t	Big ()
static TClass *	Class ()
static const char *	Class_Name ()
static constexpr Version_t	Class_Version ()
static Double_t	ComputeEpsMch ()
	Compute machine round-off double precision error as the smallest number that if added to 1.0 is different than 1.0.
static const char *	DeclFileName ()
static Double_t	DistToPhiMin (const Double_t *point, const Double_t *dir, Double_t s1, Double_t c1, Double_t s2, Double_t c2, Double_t sm, Double_t cm, Bool_t in=kTRUE)
	compute distance from point (inside phi) to both phi planes. Return minimum.
static Double_t	EpsMch ()
	static function returning the machine round-off error
static TGeoMatrix *	GetTransform ()
	Returns current transformation matrix that applies to shape.
static Bool_t	IsCloseToPhi (Double_t epsil, const Double_t *point, Double_t c1, Double_t s1, Double_t c2, Double_t s2)
	True if point is closer than epsil to one of the phi planes defined by c1,s1 or c2,s2.
static Bool_t	IsCrossingSemiplane (const Double_t *point, const Double_t *dir, Double_t cphi, Double_t sphi, Double_t &snext, Double_t &rxy)
	Compute distance from POINT to semiplane defined by PHI angle along DIR.
static Bool_t	IsInPhiRange (const Double_t *point, Double_t phi1, Double_t phi2)
	Static method to check if a point is in the phi range (phi1, phi2) [degrees].
static Bool_t	IsSameWithinTolerance (Double_t a, Double_t b)
	Check if two numbers differ with less than a tolerance.
static Bool_t	IsSegCrossing (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Double_t x3, Double_t y3, Double_t x4, Double_t y4)
	Check if segments (A,B) and (C,D) are crossing, where: A(x1,y1), B(x2,y2), C(x3,y3), D(x4,y4)
static void	NormalPhi (const Double_t *point, const Double_t *dir, Double_t *norm, Double_t c1, Double_t s1, Double_t c2, Double_t s2)
	Static method to compute normal to phi planes.
static Double_t	SafetyPhi (const Double_t *point, Bool_t in, Double_t phi1, Double_t phi2)
	Static method to compute safety w.r.t a phi corner defined by cosines/sines of the angles phi1, phi2.
static Double_t	SafetySeg (Double_t r, Double_t z, Double_t r1, Double_t z1, Double_t r2, Double_t z2, Bool_t outer)
	Compute distance from point of coordinates (r,z) to segment (r1,z1):(r2,z2)
static void	SetTransform (TGeoMatrix *matrix)
	Set current transformation matrix that applies to shape.
static Double_t	Tolerance ()
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
virtual void	FillBuffer3D (TBuffer3D &buffer, Int_t reqSections, Bool_t localFrame) const
	Fill the supplied buffer, with sections in desired frame See TBuffer3D.h for explanation of sections, frame etc.
Int_t	GetBasicColor () const
	Get the basic color (0-7).
void	SetOnBoundary (Bool_t)
void	TransformPoints (Double_t *points, UInt_t NbPoints) const
	Tranform a set of points (LocalToMaster)
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
UInt_t	fShapeBits
Int_t	fShapeId
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle

Static Private Attributes
static Double_t	fgEpsMch = 2.220446049250313e-16
static TGeoMatrix *	fgTransform = NULL

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

#include <TGeoShape.h>

Inheritance diagram for TGeoShape:

Member Enumeration Documentation

EShapeType

enum TGeoShape::EShapeType

Enumerator
kBitMask32
kGeoNoShape
kGeoBad
kGeoRSeg
kGeoPhiSeg
kGeoThetaSeg
kGeoVisX
kGeoVisY
kGeoVisZ
kGeoRunTimeShape
kGeoInvalidShape
kGeoTorus
kGeoBox
kGeoPara
kGeoSph
kGeoTube
kGeoTubeSeg
kGeoCone
kGeoConeSeg
kGeoPcon
kGeoPgon
kGeoArb8
kGeoEltu
kGeoTrap
kGeoCtub
kGeoTrd1
kGeoTrd2
kGeoComb
kGeoClosedShape
kGeoXtru
kGeoParaboloid
kGeoHalfSpace
kGeoHype
kGeoSavePrimitive

Definition at line 31 of file TGeoShape.h.

Constructor & Destructor Documentation

TGeoShape() [1/2]

TGeoShape::TGeoShape

(

)

Default constructor.

Definition at line 165 of file TGeoShape.cxx.

TGeoShape() [2/2]

TGeoShape::TGeoShape

(

const char *

name

)

Default constructor.

Definition at line 180 of file TGeoShape.cxx.

~TGeoShape()

TGeoShape::~TGeoShape ( )

virtual

Destructor.

Definition at line 196 of file TGeoShape.cxx.

Member Function Documentation

AfterStreamer()

virtual void TGeoShape::AfterStreamer ( )

inlinevirtual

Reimplemented in TGeoConeSeg, TGeoTessellated, and TGeoTubeSeg.

Definition at line 94 of file TGeoShape.h.

Big()

static Double_t TGeoShape::Big ( )

inlinestatic

Definition at line 88 of file TGeoShape.h.

Capacity()

virtual Double_t TGeoShape::Capacity ( ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

CheckShape()

void TGeoShape::CheckShape	(	Int_t	testNo,
		Int_t	nsamples = 10000,
		Option_t *	option = ""
	)

Test for shape navigation methods.

Summary for test numbers:

• 1: DistFromInside/Outside. Sample points inside the shape. Generate directions randomly in cos(theta). Compute DistFromInside and move the point with bigger distance. Compute DistFromOutside back from new point. Plot d-(d1+d2)

Definition at line 209 of file TGeoShape.cxx.

Class()

static TClass * TGeoShape::Class ( )

static

Returns

TClass describing this class

Class_Name()

static const char * TGeoShape::Class_Name ( )

static

Returns

Name of this class

Class_Version()

static constexpr Version_t TGeoShape::Class_Version ( )

inlinestaticconstexpr

Returns

Version of this class

Definition at line 167 of file TGeoShape.h.

ClearThreadData()

virtual void TGeoShape::ClearThreadData ( ) const

inlinevirtual

Reimplemented in TGeoCompositeShape, TGeoPgon, and TGeoXtru.

Definition at line 67 of file TGeoShape.h.

ComputeBBox()

virtual void TGeoShape::ComputeBBox ( )

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

ComputeEpsMch()

Double_t TGeoShape::ComputeEpsMch ( )

static

Compute machine round-off double precision error as the smallest number that if added to 1.0 is different than 1.0.

Definition at line 223 of file TGeoShape.cxx.

ComputeNormal()

virtual void TGeoShape::ComputeNormal ( const Double_t *  point, const Double_t *  dir, Double_t *  norm  )

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

ComputeNormal_v()

virtual void TGeoShape::ComputeNormal_v ( const Double_t *  , const Double_t *  , Double_t *  , Int_t    )

inlinevirtual

Reimplemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 99 of file TGeoShape.h.

Contains()

virtual Bool_t TGeoShape::Contains ( const Double_t *  point ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

Contains_v()

virtual void TGeoShape::Contains_v ( const Double_t *  , Bool_t *  , Int_t    ) const

inlinevirtual

Reimplemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 101 of file TGeoShape.h.

CouldBeCrossed()

virtual Bool_t TGeoShape::CouldBeCrossed ( const Double_t *  point, const Double_t *  dir  ) const

pure virtual

Implemented in TGeoBBox, and TGeoVGShape.

CreateThreadData()

virtual void TGeoShape::CreateThreadData ( Int_t  )

inlinevirtual

Reimplemented in TGeoCompositeShape, TGeoPgon, and TGeoXtru.

Definition at line 68 of file TGeoShape.h.

DeclFileName()

static const char * TGeoShape::DeclFileName ( )

inlinestatic

Returns

Name of the file containing the class declaration

Definition at line 167 of file TGeoShape.h.

DistancetoPrimitive()

virtual Int_t TGeoShape::DistancetoPrimitive ( Int_t  px, Int_t  py  )

pure virtual

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

This member function must be implemented for each graphics primitive. This default function returns a big number (999999).

Reimplemented from TObject.

Implemented in TGeoTessellated, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoXtru, and TGeoVGShape.

DistFromInside()

virtual Double_t TGeoShape::DistFromInside ( const Double_t *  point, const Double_t *  dir, Int_t  iact = 1, Double_t  step = TGeoShape::Big(), Double_t *  safe = nullptr  ) const

pure virtual

Implemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

DistFromInside_v()

virtual void TGeoShape::DistFromInside_v ( const Double_t *  , const Double_t *  , Double_t *  , Int_t  , Double_t *    ) const

inlinevirtual

Reimplemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 106 of file TGeoShape.h.

DistFromOutside()

virtual Double_t TGeoShape::DistFromOutside ( const Double_t *  point, const Double_t *  dir, Int_t  iact = 1, Double_t  step = TGeoShape::Big(), Double_t *  safe = nullptr  ) const

pure virtual

Implemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

DistFromOutside_v()

virtual void TGeoShape::DistFromOutside_v ( const Double_t *  , const Double_t *  , Double_t *  , Int_t  , Double_t *    ) const

inlinevirtual

Reimplemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 109 of file TGeoShape.h.

DistToPhiMin()

Double_t TGeoShape::DistToPhiMin ( const Double_t *  point, const Double_t *  dir, Double_t  s1, Double_t  c1, Double_t  s2, Double_t  c2, Double_t  sm, Double_t  cm, Bool_t  in = kTRUE  )

static

compute distance from point (inside phi) to both phi planes. Return minimum.

Definition at line 405 of file TGeoShape.cxx.

Divide()

virtual TGeoVolume * TGeoShape::Divide ( TGeoVolume *  voldiv, const char *  divname, Int_t  iaxis, Int_t  ndiv, Double_t  start, Double_t  step  )

pure virtual

Implemented in TGeoVGShape, TGeoArb8, TGeoTrap, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, and TGeoCtub.

Draw()

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

virtual

Draw this shape.

Reimplemented from TObject.

Reimplemented in TGeoVGShape.

Definition at line 721 of file TGeoShape.cxx.

EpsMch()

Double_t TGeoShape::EpsMch ( )

static

static function returning the machine round-off error

Definition at line 240 of file TGeoShape.cxx.

ExecuteEvent()

void TGeoShape::ExecuteEvent ( Int_t  event, Int_t  px, Int_t  py  )

virtual

Execute mouse actions on this shape.

Reimplemented from TObject.

Definition at line 711 of file TGeoShape.cxx.

FillBuffer3D()

void TGeoShape::FillBuffer3D ( TBuffer3D &  buffer, Int_t  reqSections, Bool_t  localFrame  ) const

protectedvirtual

Fill the supplied buffer, with sections in desired frame See TBuffer3D.h for explanation of sections, frame etc.

Reimplemented in TGeoBBox, TEveGeoPolyShape, and ROOT::Experimental::REveGeoPolyShape.

Definition at line 589 of file TGeoShape.cxx.

GetAxisName()

virtual const char * TGeoShape::GetAxisName ( Int_t  iaxis ) const

pure virtual

Implemented in TGeoBBox, TGeoCone, TGeoPcon, TGeoSphere, TGeoTorus, TGeoTube, and TGeoVGShape.

GetAxisRange()

virtual Double_t TGeoShape::GetAxisRange ( Int_t  iaxis, Double_t &  xlo, Double_t &  xhi  ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoHype, TGeoPara, TGeoPcon, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoVGShape.

GetBasicColor()

Int_t TGeoShape::GetBasicColor ( ) const

protected

Get the basic color (0-7).

Definition at line 673 of file TGeoShape.cxx.

GetBoundingCylinder()

virtual void TGeoShape::GetBoundingCylinder ( Double_t *  param ) const

pure virtual

Implemented in TGeoCompositeShape, TGeoHalfSpace, TGeoArb8, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, and TGeoVGShape.

GetBuffer3D()

const TBuffer3D & TGeoShape::GetBuffer3D ( Int_t  reqSections, Bool_t  localFrame  ) const

virtual

Stub implementation to avoid forcing implementation at this stage.

Reimplemented in TGeoTessellated, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHype, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoSphere, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, TGeoVGShape, TEveGeoPolyShape, and ROOT::Experimental::REveGeoPolyShape.

Definition at line 689 of file TGeoShape.cxx.

GetByteCount()

virtual Int_t TGeoShape::GetByteCount ( ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoHype, TGeoPara, TGeoPcon, TGeoPgon, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoVGShape.

GetFittingBox()

virtual Int_t TGeoShape::GetFittingBox ( const TGeoBBox *  parambox, TGeoMatrix *  mat, Double_t &  dx, Double_t &  dy, Double_t &  dz  ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoPara, TGeoTrd1, TGeoTrd2, and TGeoVGShape.

GetId()

Int_t TGeoShape::GetId ( ) const

inline

Definition at line 123 of file TGeoShape.h.

GetMakeRuntimeShape()

virtual TGeoShape * TGeoShape::GetMakeRuntimeShape ( TGeoShape *  mother, TGeoMatrix *  mat  ) const

pure virtual

Implemented in TGeoArb8, TGeoCompositeShape, TGeoHalfSpace, TGeoPcon, TGeoPgon, TGeoSphere, TGeoXtru, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHype, TGeoPara, TGeoParaboloid, TGeoScaledShape, TGeoShapeAssembly, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoVGShape.

GetMeshNumbers()

virtual void TGeoShape::GetMeshNumbers ( Int_t &  , Int_t &  , Int_t &    ) const

inlinevirtual

Reimplemented in TGeoTessellated, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

Definition at line 125 of file TGeoShape.h.

GetName()

const char * TGeoShape::GetName ( ) const

virtual

Get the shape name.

Reimplemented from TObject.

Reimplemented in TGeoVGShape.

Definition at line 248 of file TGeoShape.cxx.

GetNmeshVertices()

virtual Int_t TGeoShape::GetNmeshVertices ( ) const

inlinevirtual

Reimplemented in TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

Definition at line 127 of file TGeoShape.h.

GetPointerName()

const char * TGeoShape::GetPointerName

(

)

const

Provide a pointer name containing uid.

Definition at line 699 of file TGeoShape.cxx.

GetPointsOnSegments()

virtual Bool_t TGeoShape::GetPointsOnSegments ( Int_t  npoints, Double_t *  array  ) const

pure virtual

Implemented in TGeoBBox, TGeoCone, TGeoConeSeg, TGeoPgon, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoVGShape, TGeoCompositeShape, TGeoEltu, TGeoHype, TGeoParaboloid, TGeoPcon, TGeoSphere, and TGeoTorus.

GetTransform()

TGeoMatrix * TGeoShape::GetTransform ( )

static

Returns current transformation matrix that applies to shape.

Definition at line 536 of file TGeoShape.cxx.

InspectShape()

virtual void TGeoShape::InspectShape ( ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

InvertShapeBit()

void TGeoShape::InvertShapeBit ( UInt_t  f )

inline

Definition at line 165 of file TGeoShape.h.

IsA()

virtual TClass * TGeoShape::IsA ( ) const

inlinevirtual

Returns

TClass describing current object

Reimplemented from TObject.

Reimplemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 167 of file TGeoShape.h.

IsAssembly()

virtual Bool_t TGeoShape::IsAssembly ( ) const

inlinevirtual

Reimplemented in TGeoScaledShape, TGeoShapeAssembly, and TGeoVGShape.

Definition at line 129 of file TGeoShape.h.

IsCloseToPhi()

Bool_t TGeoShape::IsCloseToPhi ( Double_t  epsil, const Double_t *  point, Double_t  c1, Double_t  s1, Double_t  c2, Double_t  s2  )

static

True if point is closer than epsil to one of the phi planes defined by c1,s1 or c2,s2.

Definition at line 269 of file TGeoShape.cxx.

IsComposite()

virtual Bool_t TGeoShape::IsComposite ( ) const

inlinevirtual

Reimplemented in TGeoCompositeShape, and TGeoVGShape.

Definition at line 130 of file TGeoShape.h.

IsCrossingSemiplane()

Bool_t TGeoShape::IsCrossingSemiplane ( const Double_t *  point, const Double_t *  dir, Double_t  cphi, Double_t  sphi, Double_t &  snext, Double_t &  rxy  )

static

Compute distance from POINT to semiplane defined by PHI angle along DIR.

Computes also radius at crossing point. This might be negative in case the crossing is on the other side of the semiplane.

Definition at line 297 of file TGeoShape.cxx.

IsCylType()

virtual Bool_t TGeoShape::IsCylType ( ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, and TGeoVGShape.

IsInPhiRange()

Bool_t TGeoShape::IsInPhiRange ( const Double_t *  point, Double_t  phi1, Double_t  phi2  )

static

Static method to check if a point is in the phi range (phi1, phi2) [degrees].

Definition at line 283 of file TGeoShape.cxx.

IsReflected()

virtual Bool_t TGeoShape::IsReflected ( ) const

inlinevirtual

Reimplemented in TGeoScaledShape, and TGeoVGShape.

Definition at line 137 of file TGeoShape.h.

IsRunTimeShape()

Bool_t TGeoShape::IsRunTimeShape ( ) const

inline

Definition at line 139 of file TGeoShape.h.

IsSameWithinTolerance()

Bool_t TGeoShape::IsSameWithinTolerance ( Double_t  a, Double_t  b  )

static

Check if two numbers differ with less than a tolerance.

Definition at line 326 of file TGeoShape.cxx.

IsSegCrossing()

Bool_t TGeoShape::IsSegCrossing ( Double_t  x1, Double_t  y1, Double_t  x2, Double_t  y2, Double_t  x3, Double_t  y3, Double_t  x4, Double_t  y4  )

static

Check if segments (A,B) and (C,D) are crossing, where: A(x1,y1), B(x2,y2), C(x3,y3), D(x4,y4)

Definition at line 336 of file TGeoShape.cxx.

IsValid()

Bool_t TGeoShape::IsValid ( ) const

inline

Definition at line 140 of file TGeoShape.h.

IsValidBox()

virtual Bool_t TGeoShape::IsValidBox ( ) const

pure virtual

Implemented in TGeoBBox, and TGeoVGShape.

IsVecGeom()

virtual Bool_t TGeoShape::IsVecGeom ( ) const

inlinevirtual

Reimplemented in TGeoVGShape.

Definition at line 138 of file TGeoShape.h.

MakeBuffer3D()

virtual TBuffer3D * TGeoShape::MakeBuffer3D ( ) const

inlinevirtual

Reimplemented in TGeoBBox, TGeoCone, TGeoConeSeg, TGeoHype, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoXtru, TGeoVGShape, TEveGeoPolyShape, and ROOT::Experimental::REveGeoPolyShape.

Definition at line 143 of file TGeoShape.h.

NormalPhi()

void TGeoShape::NormalPhi ( const Double_t *  point, const Double_t *  dir, Double_t *  norm, Double_t  c1, Double_t  s1, Double_t  c2, Double_t  s2  )

static

Static method to compute normal to phi planes.

Definition at line 437 of file TGeoShape.cxx.

Paint()

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

virtual

Paint this shape.

Reimplemented from TObject.

Reimplemented in TGeoVGShape.

Definition at line 734 of file TGeoShape.cxx.

ResetShapeBit()

void TGeoShape::ResetShapeBit ( UInt_t  f )

inline

Definition at line 162 of file TGeoShape.h.

Safety()

virtual Double_t TGeoShape::Safety ( const Double_t *  point, Bool_t  in = kTRUE  ) const

pure virtual

Implemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

Safety_v()

virtual void TGeoShape::Safety_v ( const Double_t *  , const Bool_t *  , Double_t *  , Int_t    ) const

inlinevirtual

Reimplemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

Definition at line 147 of file TGeoShape.h.

SafetyPhi()

Double_t TGeoShape::SafetyPhi ( const Double_t *  point, Bool_t  in, Double_t  phi1, Double_t  phi2  )

static

Static method to compute safety w.r.t a phi corner defined by cosines/sines of the angles phi1, phi2.

Definition at line 464 of file TGeoShape.cxx.

SafetySeg()

Double_t TGeoShape::SafetySeg ( Double_t  r, Double_t  z, Double_t  r1, Double_t  z1, Double_t  r2, Double_t  z2, Bool_t  outer  )

static

Compute distance from point of coordinates (r,z) to segment (r1,z1):(r2,z2)

Definition at line 494 of file TGeoShape.cxx.

SetDimensions()

virtual void TGeoShape::SetDimensions ( Double_t *  param )

pure virtual

Implemented in TGeoCompositeShape, TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

SetId()

void TGeoShape::SetId ( Int_t  id )

inline

Definition at line 151 of file TGeoShape.h.

SetOnBoundary()

void TGeoShape::SetOnBoundary ( Bool_t  )

inlineprotected

Definition at line 77 of file TGeoShape.h.

SetPoints() [1/2]

virtual void TGeoShape::SetPoints ( Double_t *  points ) const

pure virtual

Implemented in TGeoTessellated, TGeoHalfSpace, TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

SetPoints() [2/2]

virtual void TGeoShape::SetPoints ( Float_t *  points ) const

pure virtual

Implemented in TGeoHalfSpace, TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, TGeoXtru, and TGeoVGShape.

SetRuntime()

void TGeoShape::SetRuntime ( Bool_t  flag = kTRUE )

inline

Definition at line 155 of file TGeoShape.h.

SetSegsAndPols()

virtual void TGeoShape::SetSegsAndPols ( TBuffer3D &  buff ) const

pure virtual

Implemented in TGeoHype, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTube, TGeoTubeSeg, TGeoXtru, TGeoVGShape, TGeoBBox, TGeoCone, TGeoConeSeg, and TGeoScaledShape.

SetShapeBit() [1/2]

void TGeoShape::SetShapeBit ( UInt_t  f )

inline

Definition at line 161 of file TGeoShape.h.

SetShapeBit() [2/2]

void TGeoShape::SetShapeBit	(	UInt_t	f,
		Bool_t	set
	)

Equivalent of TObject::SetBit.

Definition at line 524 of file TGeoShape.cxx.

SetTransform()

void TGeoShape::SetTransform ( TGeoMatrix *  matrix )

static

Set current transformation matrix that applies to shape.

Definition at line 544 of file TGeoShape.cxx.

ShapeDistancetoPrimitive()

Int_t TGeoShape::ShapeDistancetoPrimitive	(	Int_t	numpoints,
		Int_t	px,
		Int_t	py
	)		const

Returns distance to shape primitive mesh.

Definition at line 259 of file TGeoShape.cxx.

Sizeof3D()

virtual void TGeoShape::Sizeof3D ( ) const

pure virtual

Implemented in TGeoArb8, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoXtru, and TGeoVGShape.

Streamer()

virtual void TGeoShape::Streamer ( TBuffer &  R__b )

virtual

Stream an object of class TObject.

Reimplemented from TObject.

Reimplemented in TGeoArb8, TGeoTrap, TGeoGtra, TGeoBBox, TGeoCompositeShape, TGeoCone, TGeoConeSeg, TGeoEltu, TGeoHalfSpace, TGeoHype, TGeoPara, TGeoParaboloid, TGeoPcon, TGeoPgon, TGeoScaledShape, TGeoShapeAssembly, TGeoSphere, TGeoTessellated, TGeoTorus, TGeoTrd1, TGeoTrd2, TGeoTube, TGeoTubeSeg, TGeoCtub, and TGeoXtru.

StreamerNVirtual()

void TGeoShape::StreamerNVirtual ( TBuffer &  ClassDef_StreamerNVirtual_b )

inline

Definition at line 167 of file TGeoShape.h.

TestShapeBit()

Bool_t TGeoShape::TestShapeBit ( UInt_t  f ) const

inline

Definition at line 163 of file TGeoShape.h.

TestShapeBits()

Int_t TGeoShape::TestShapeBits ( UInt_t  f ) const

inline

Definition at line 164 of file TGeoShape.h.

Tolerance()

static Double_t TGeoShape::Tolerance ( )

inlinestatic

Definition at line 91 of file TGeoShape.h.

TransformPoints()

void TGeoShape::TransformPoints ( Double_t *  points, UInt_t  NbPoints  ) const

protected

Tranform a set of points (LocalToMaster)

Definition at line 552 of file TGeoShape.cxx.

Member Data Documentation

fgEpsMch

Double_t TGeoShape::fgEpsMch = 2.220446049250313e-16

staticprivate

Definition at line 29 of file TGeoShape.h.

fgTransform

TGeoMatrix * TGeoShape::fgTransform = NULL

staticprivate

Definition at line 28 of file TGeoShape.h.

fShapeBits

UInt_t TGeoShape::fShapeBits

protected

Definition at line 73 of file TGeoShape.h.

fShapeId

Int_t TGeoShape::fShapeId

protected

Definition at line 72 of file TGeoShape.h.

Libraries for TGeoShape:

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

• geom/geom/inc/TGeoShape.h
• geom/geom/src/TGeoShape.cxx