TGeoEltu Class Reference

Elliptical tube class.

An elliptical tube has 3 parameters

• A - semi-axis of the ellipse along x
• B - semi-axis of the ellipse along y
• dz - half length in z

{
   TCanvas *c = new TCanvas("c", "c",0,0,600,600);
   new TGeoManager("eltu", "poza6");
   TGeoMaterial *mat = new TGeoMaterial("Al", 26.98,13,2.7);
   TGeoMedium *med = new TGeoMedium("MED",1,mat);
   TGeoVolume *top = gGeoManager->MakeBox("TOP",med,100,100,100);
   gGeoManager->SetTopVolume(top);
   TGeoVolume *vol = gGeoManager->MakeEltu("ELTU",med, 30,10,40);
   top->AddNode(vol,1);
   gGeoManager->CloseGeometry();
   gGeoManager->SetNsegments(50);
   top->Draw();
   TView *view = gPad->GetView();
   view->ShowAxis();
}

Definition at line 17 of file TGeoEltu.h.

Public Member Functions
	TGeoEltu ()
	Dummy constructor.
	TGeoEltu (const char *name, Double_t a, Double_t b, Double_t dz)
	Default constructor specifying X and Y semiaxis length.
	TGeoEltu (Double_t *params)
	Default constructor specifying minimum and maximum radius param[0] = A param[1] = B param[2] = dz.
	TGeoEltu (Double_t a, Double_t b, Double_t dz)
	Default constructor specifying X and Y semiaxis length.
virtual	~TGeoEltu ()
	destructor
virtual Double_t	Capacity () const
	Computes capacity of the shape in [length^3].
virtual void	ComputeBBox ()
	compute bounding box of the tube
virtual void	ComputeNormal (const Double_t *point, const Double_t *dir, Double_t *norm)
	Compute normal to closest surface from POINT.
virtual void	ComputeNormal_v (const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize)
	Compute the normal for an array o points so that norm.dot.dir is positive Input: Arrays of point coordinates and directions + vector size Output: Array of normal directions.
virtual Bool_t	Contains (const Double_t *point) const
	test if point is inside the elliptical tube
virtual void	Contains_v (const Double_t *points, Bool_t *inside, Int_t vecsize) const
	Check the inside status for each of the points in the array.
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	compute closest distance from point px,py to each vertex
virtual Double_t	DistFromInside (const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const
	compute distance from inside point to surface of the tube
virtual void	DistFromInside_v (const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const
	Compute distance from array of input points having directions specified by dirs. Store output in dists.
virtual Double_t	DistFromOutside (const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=0) const
	compute distance from outside point to surface of the tube and safe distance
virtual void	DistFromOutside_v (const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const
	Compute distance from array of input points having directions specified by dirs. Store output in dists.
virtual TGeoVolume *	Divide (TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
	Divide the shape along one axis.
virtual Double_t	GetA () const
virtual Double_t	GetB () const
virtual void	GetBoundingCylinder (Double_t *param) const
	Fill vector param[4] with the bounding cylinder parameters.
virtual const TBuffer3D &	GetBuffer3D (Int_t reqSections, Bool_t localFrame) const
	Fills a static 3D buffer and returns a reference.
virtual TGeoShape *	GetMakeRuntimeShape (TGeoShape *mother, TGeoMatrix *mat) const
	in case shape has some negative parameters, these has to be computed in order to fit the mother
virtual void	GetMeshNumbers (Int_t &nvert, Int_t &nsegs, Int_t &npols) const
	Returns numbers of vertices, segments and polygons composing the shape mesh.
virtual Int_t	GetNmeshVertices () const
	Returns the number of vertices on the mesh.
virtual Bool_t	GetPointsOnSegments (Int_t, Double_t *) const
	Fills array with n random points located on the line segments of the shape mesh.
virtual void	InspectShape () const
	print shape parameters
virtual Bool_t	IsCylType () const
virtual Double_t	Safety (const Double_t *point, Bool_t in=kTRUE) const
	computes the closest distance from given point to this shape, according to option.
virtual void	Safety_v (const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const
	Compute safe distance from each of the points in the input array.
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".
virtual void	SetDimensions (Double_t *param)
	Set shape dimensions starting from an array.
void	SetEltuDimensions (Double_t a, Double_t b, Double_t dz)
	Set dimensions of the elliptical tube.
virtual void	SetPoints (Double_t *points) const
	Create elliptical tube mesh points.
virtual void	SetPoints (Float_t *points) const
	Create elliptical tube mesh points.
Public Member Functions inherited from TGeoTube
	TGeoTube ()
	Default constructor.
	TGeoTube (const char *name, Double_t rmin, Double_t rmax, Double_t dz)
	Default constructor specifying minimum and maximum radius.
	TGeoTube (Double_t *params)
	Default constructor specifying minimum and maximum radius.
	TGeoTube (Double_t rmin, Double_t rmax, Double_t dz)
	Default constructor specifying minimum and maximum radius.
virtual	~TGeoTube ()
	destructor
virtual const char *	GetAxisName (Int_t iaxis) const
	Returns name of axis IAXIS.
virtual Double_t	GetAxisRange (Int_t iaxis, Double_t &xlo, Double_t &xhi) const
	Get range of shape for a given axis.
virtual Int_t	GetByteCount () const
virtual Double_t	GetDz () const
virtual Double_t	GetRmax () const
virtual Double_t	GetRmin () const
Bool_t	HasRmin () const
virtual TBuffer3D *	MakeBuffer3D () const
	Creates a TBuffer3D describing this shape.
virtual void	SetSegsAndPols (TBuffer3D &buff) const
	Fill TBuffer3D structure for segments and polygons.
void	SetTubeDimensions (Double_t rmin, Double_t rmax, Double_t dz)
	Set tube dimensions.
virtual void	Sizeof3D () const
	fill size of this 3-D object
Public Member Functions inherited from TGeoBBox
	TGeoBBox ()
	Default constructor.
	TGeoBBox (const char *name, Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
	Constructor with shape name.
	TGeoBBox (Double_t *param)
	Constructor based on the array of parameters.
	TGeoBBox (Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
	Constructor where half-lengths are provided.
virtual	~TGeoBBox ()
	Destructor.
virtual Bool_t	CouldBeCrossed (const Double_t *point, const Double_t *dir) const
	Decides fast if the bounding box could be crossed by a vector.
virtual Double_t	GetDX () const
virtual Double_t	GetDY () const
virtual Double_t	GetDZ () const
virtual Double_t	GetFacetArea (Int_t index=0) const
	Get area in internal units of the facet with a given index.
virtual Int_t	GetFittingBox (const TGeoBBox *parambox, TGeoMatrix *mat, Double_t &dx, Double_t &dy, Double_t &dz) const
	Fills real parameters of a positioned box inside this one. Returns 0 if successful.
virtual const Double_t *	GetOrigin () const
virtual Bool_t	GetPointsOnFacet (Int_t index, Int_t npoints, Double_t *array) const
	Fills array with n random points located on the surface of indexed facet.
virtual Bool_t	IsNullBox () const
virtual Bool_t	IsValidBox () const
void	SetBoxDimensions (Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
	Set parameters of the box.
void	SetBoxPoints (Double_t *points) const
	Fill box vertices to an array.
Public Member Functions inherited from TGeoShape
	TGeoShape ()
	Default constructor.
	TGeoShape (const char *name)
	Default constructor.
virtual	~TGeoShape ()
	Destructor.
virtual void	AfterStreamer ()
void	CheckShape (Int_t testNo, Int_t nsamples=10000, Option_t *option="")
	Test for shape navigation methods.
virtual void	ClearThreadData () const
virtual void	CreateThreadData (Int_t)
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.
Int_t	GetId () const
virtual const char *	GetName () const
	Get the shape name.
const char *	GetPointerName () const
	Provide a pointer name containing uid.
void	InvertShapeBit (UInt_t f)
virtual Bool_t	IsAssembly () const
virtual Bool_t	IsComposite () const
virtual Bool_t	IsReflected () const
Bool_t	IsRunTimeShape () const
Bool_t	IsValid () const
virtual Bool_t	IsVecGeom () const
virtual void	Paint (Option_t *option="")
	Paint this shape.
void	ResetShapeBit (UInt_t f)
void	SetId (Int_t id)
void	SetRuntime (Bool_t flag=kTRUE)
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.
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.
virtual void	Clear (Option_t *option="")
	Set name and title to empty strings ("").
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.
virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects.
virtual void	Copy (TObject &named) const
	Copy this to obj.
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer.
virtual const char *	GetTitle () const
	Returns title of object.
virtual ULong_t	Hash () const
	Return hash value for this object.
virtual Bool_t	IsSortable () const
virtual void	ls (Option_t *option="") const
	List TNamed name and title.
TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator.
virtual void	Print (Option_t *option="") const
	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.
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 for instance with: gROOT->SetSelectedPad(gPad).
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
virtual void	Execute (const char *method, const char *params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.
virtual void	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)
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.
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.

Additional Inherited Members
Public Types inherited from TGeoShape
enum	EShapeType {   kBitMask32 = 0xffffffff , kGeoNoShape = 0 , kGeoBad = BIT(0) , kGeoRSeg = BIT(1) ,   kGeoPhiSeg = BIT(2) , kGeoThetaSeg = BIT(3) , kGeoVisX = BIT(4) , kGeoVisY = BIT(5) ,   kGeoVisZ = BIT(6) , kGeoRunTimeShape = BIT(7) , kGeoInvalidShape = BIT(8) , kGeoTorus = BIT(9) ,   kGeoBox = BIT(10) , kGeoPara = BIT(11) , kGeoSph = BIT(12) , kGeoTube = BIT(13) ,   kGeoTubeSeg = BIT(14) , kGeoCone = BIT(15) , kGeoConeSeg = BIT(16) , kGeoPcon = BIT(17) ,   kGeoPgon = BIT(18) , kGeoArb8 = BIT(19) , kGeoEltu = BIT(20) , kGeoTrap = BIT(21) ,   kGeoCtub = BIT(22) , kGeoTrd1 = BIT(23) , kGeoTrd2 = BIT(24) , kGeoComb = BIT(25) ,   kGeoClosedShape = BIT(26) , kGeoXtru = BIT(27) , kGeoParaboloid = BIT(28) , kGeoHalfSpace = BIT(29) ,   kGeoHype = BIT(30) , kGeoSavePrimitive = BIT(20) }
Public Types inherited from TObject
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
enum	EStatusBits {   kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,   kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }
Static Public Member Functions inherited from TGeoTube
static Double_t	Capacity (Double_t rmin, Double_t rmax, Double_t dz)
	Computes capacity of the shape in [length^3].
static void	ComputeNormalS (const Double_t *point, const Double_t *dir, Double_t *norm, Double_t rmin, Double_t rmax, Double_t dz)
	Compute normal to closest surface from POINT.
static Double_t	DistFromInsideS (const Double_t *point, const Double_t *dir, Double_t rmin, Double_t rmax, Double_t dz)
	Compute distance from inside point to surface of the tube (static) Boundary safe algorithm.
static Double_t	DistFromOutsideS (const Double_t *point, const Double_t *dir, Double_t rmin, Double_t rmax, Double_t dz)
	Static method to compute distance from outside point to a tube with given parameters Boundary safe algorithm.
static void	DistToTube (Double_t rsq, Double_t nsq, Double_t rdotn, Double_t radius, Double_t &b, Double_t &delta)
	Static method computing the distance to a tube with given radius, starting from POINT along DIR director cosines.
static Double_t	SafetyS (const Double_t *point, Bool_t in, Double_t rmin, Double_t rmax, Double_t dz, Int_t skipz=0)
	computes the closest distance from given point to this shape, according to option.
Static Public Member Functions inherited from TGeoBBox
static Bool_t	AreOverlapping (const TGeoBBox *box1, const TGeoMatrix *mat1, const TGeoBBox *box2, const TGeoMatrix *mat2)
	Check if 2 positioned boxes overlap.
static Bool_t	Contains (const Double_t *point, Double_t dx, Double_t dy, Double_t dz, const Double_t *origin)
	Static method to check if point[3] is located inside a box of having dx, dy, dz as half-lengths.
static Double_t	DistFromInside (const Double_t *point, const Double_t *dir, Double_t dx, Double_t dy, Double_t dz, const Double_t *origin, Double_t stepmax=TGeoShape::Big())
	Compute distance from inside point to surface of the box.
static Double_t	DistFromOutside (const Double_t *point, const Double_t *dir, Double_t dx, Double_t dy, Double_t dz, const Double_t *origin, Double_t stepmax=TGeoShape::Big())
	Compute distance from outside point to surface of the box.
Static Public Member Functions inherited from TGeoShape
static Double_t	Big ()
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 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 TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag.
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }
Protected Member Functions inherited from TGeoBBox
virtual void	FillBuffer3D (TBuffer3D &buffer, Int_t reqSections, Bool_t localFrame) const
	Fills the supplied buffer, with sections in desired frame See TBuffer3D.h for explanation of sections, frame etc.
Protected Member Functions inherited from TGeoShape
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 inherited from TGeoTube
Double_t	fDz
Double_t	fRmax
Double_t	fRmin
Protected Attributes inherited from TGeoBBox
Double_t	fDX
Double_t	fDY
Double_t	fDZ
Double_t	fOrigin [3]
Protected Attributes inherited from TGeoShape
UInt_t	fShapeBits
Int_t	fShapeId
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle

#include <TGeoEltu.h>

Inheritance diagram for TGeoEltu:

Constructor & Destructor Documentation

TGeoEltu() [1/4]

TGeoEltu::TGeoEltu

(

)

Dummy constructor.

Definition at line 54 of file TGeoEltu.cxx.

TGeoEltu() [2/4]

TGeoEltu::TGeoEltu	(	Double_t	a,
		Double_t	b,
		Double_t	dz
	)

Default constructor specifying X and Y semiaxis length.

Definition at line 62 of file TGeoEltu.cxx.

TGeoEltu() [3/4]

TGeoEltu::TGeoEltu	(	const char *	name,
		Double_t	a,
		Double_t	b,
		Double_t	dz
	)

Default constructor specifying X and Y semiaxis length.

Definition at line 73 of file TGeoEltu.cxx.

TGeoEltu() [4/4]

TGeoEltu::TGeoEltu

(

Double_t *

params

)

Default constructor specifying minimum and maximum radius param[0] = A param[1] = B param[2] = dz.

Definition at line 88 of file TGeoEltu.cxx.

~TGeoEltu()

TGeoEltu::~TGeoEltu ( )

virtual

destructor

Definition at line 98 of file TGeoEltu.cxx.

Member Function Documentation

Capacity()

Double_t TGeoEltu::Capacity ( ) const

virtual

Computes capacity of the shape in [length^3].

Reimplemented from TGeoTube.

Definition at line 105 of file TGeoEltu.cxx.

ComputeBBox()

void TGeoEltu::ComputeBBox ( )

virtual

compute bounding box of the tube

Reimplemented from TGeoTube.

Definition at line 114 of file TGeoEltu.cxx.

ComputeNormal()

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

virtual

Compute normal to closest surface from POINT.

Reimplemented from TGeoTube.

Definition at line 124 of file TGeoEltu.cxx.

ComputeNormal_v()

void TGeoEltu::ComputeNormal_v ( const Double_t *  points, const Double_t *  dirs, Double_t *  norms, Int_t  vecsize  )

virtual

Compute the normal for an array o points so that norm.dot.dir is positive Input: Arrays of point coordinates and directions + vector size Output: Array of normal directions.

Reimplemented from TGeoTube.

Definition at line 613 of file TGeoEltu.cxx.

Contains()

Bool_t TGeoEltu::Contains ( const Double_t *  point ) const

virtual

test if point is inside the elliptical tube

Reimplemented from TGeoTube.

Definition at line 145 of file TGeoEltu.cxx.

Contains_v()

void TGeoEltu::Contains_v ( const Double_t *  points, Bool_t *  inside, Int_t  vecsize  ) const

virtual

Check the inside status for each of the points in the array.

Input: Array of point coordinates + vector size Output: Array of Booleans for the inside of each point

Reimplemented from TGeoTube.

Definition at line 603 of file TGeoEltu.cxx.

DistancetoPrimitive()

Int_t TGeoEltu::DistancetoPrimitive ( Int_t  px, Int_t  py  )

virtual

compute closest distance from point px,py to each vertex

Reimplemented from TGeoTube.

Definition at line 156 of file TGeoEltu.cxx.

DistFromInside()

Double_t TGeoEltu::DistFromInside ( const Double_t *  point, const Double_t *  dir, Int_t  iact = 1, Double_t  step = TGeoShape::Big(), Double_t *  safe = 0  ) const

virtual

compute distance from inside point to surface of the tube

Reimplemented from TGeoTube.

Definition at line 166 of file TGeoEltu.cxx.

DistFromInside_v()

void TGeoEltu::DistFromInside_v ( const Double_t *  points, const Double_t *  dirs, Double_t *  dists, Int_t  vecsize, Double_t *  step  ) const

virtual

Compute distance from array of input points having directions specified by dirs. Store output in dists.

Reimplemented from TGeoTube.

Definition at line 621 of file TGeoEltu.cxx.

DistFromOutside()

Double_t TGeoEltu::DistFromOutside ( const Double_t *  point, const Double_t *  dir, Int_t  iact = 1, Double_t  step = TGeoShape::Big(), Double_t *  safe = 0  ) const

virtual

compute distance from outside point to surface of the tube and safe distance

Reimplemented from TGeoTube.

Definition at line 238 of file TGeoEltu.cxx.

DistFromOutside_v()

void TGeoEltu::DistFromOutside_v ( const Double_t *  points, const Double_t *  dirs, Double_t *  dists, Int_t  vecsize, Double_t *  step  ) const

virtual

Compute distance from array of input points having directions specified by dirs. Store output in dists.

Reimplemented from TGeoTube.

Definition at line 629 of file TGeoEltu.cxx.

Divide()

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

virtual

Divide the shape along one axis.

Reimplemented from TGeoTube.

Definition at line 315 of file TGeoEltu.cxx.

GetA()

virtual Double_t TGeoEltu::GetA ( ) const

inlinevirtual

Definition at line 43 of file TGeoEltu.h.

GetB()

virtual Double_t TGeoEltu::GetB ( ) const

inlinevirtual

Definition at line 44 of file TGeoEltu.h.

GetBoundingCylinder()

void TGeoEltu::GetBoundingCylinder ( Double_t *  param ) const

virtual

Fill vector param[4] with the bounding cylinder parameters.

The order is the following : Rmin, Rmax, Phi1, Phi2

Reimplemented from TGeoTube.

Definition at line 326 of file TGeoEltu.cxx.

GetBuffer3D()

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

virtual

Fills a static 3D buffer and returns a reference.

Reimplemented from TGeoTube.

Definition at line 572 of file TGeoEltu.cxx.

GetMakeRuntimeShape()

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

virtual

in case shape has some negative parameters, these has to be computed in order to fit the mother

Reimplemented from TGeoTube.

Definition at line 339 of file TGeoEltu.cxx.

GetMeshNumbers()

void TGeoEltu::GetMeshNumbers ( Int_t &  nvert, Int_t &  nsegs, Int_t &  npols  ) const

virtual

Returns numbers of vertices, segments and polygons composing the shape mesh.

Reimplemented from TGeoTube.

Definition at line 510 of file TGeoEltu.cxx.

GetNmeshVertices()

Int_t TGeoEltu::GetNmeshVertices ( ) const

virtual

Returns the number of vertices on the mesh.

Reimplemented from TGeoTube.

Definition at line 518 of file TGeoEltu.cxx.

GetPointsOnSegments()

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

inlinevirtual

Fills array with n random points located on the line segments of the shape mesh.

The output array must be provided with a length of minimum 3*npoints. Returns true if operation is implemented.

Reimplemented from TGeoTube.

Definition at line 50 of file TGeoEltu.h.

InspectShape()

void TGeoEltu::InspectShape ( ) const

virtual

print shape parameters

Reimplemented from TGeoTube.

Definition at line 362 of file TGeoEltu.cxx.

IsCylType()

virtual Bool_t TGeoEltu::IsCylType ( ) const

inlinevirtual

Reimplemented from TGeoTube.

Definition at line 52 of file TGeoEltu.h.

Safety()

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

virtual

computes the closest distance from given point to this shape, according to option.

The matching point on the shape is stored in spoint.

Reimplemented from TGeoTube.

Definition at line 376 of file TGeoEltu.cxx.

Safety_v()

void TGeoEltu::Safety_v ( const Double_t *  points, const Bool_t *  inside, Double_t *  safe, Int_t  vecsize  ) const

virtual

Compute safe distance from each of the points in the input array.

Input: Array of point coordinates, array of statuses for these points, size of the arrays Output: Safety values

Reimplemented from TGeoTube.

Definition at line 639 of file TGeoEltu.cxx.

SavePrimitive()

void TGeoEltu::SavePrimitive ( std::ostream &  out, Option_t *  option = ""  )

virtual

Save a primitive as a C++ statement(s) on output stream "out".

Reimplemented from TGeoTube.

Definition at line 426 of file TGeoEltu.cxx.

SetDimensions()

void TGeoEltu::SetDimensions ( Double_t *  param )

virtual

Set shape dimensions starting from an array.

Reimplemented from TGeoTube.

Definition at line 453 of file TGeoEltu.cxx.

SetEltuDimensions()

void TGeoEltu::SetEltuDimensions	(	Double_t	a,
		Double_t	b,
		Double_t	dz
	)

Set dimensions of the elliptical tube.

Definition at line 440 of file TGeoEltu.cxx.

SetPoints() [1/2]

void TGeoEltu::SetPoints ( Double_t *  points ) const

virtual

Create elliptical tube mesh points.

Reimplemented from TGeoTube.

Definition at line 464 of file TGeoEltu.cxx.

SetPoints() [2/2]

void TGeoEltu::SetPoints ( Float_t *  points ) const

virtual

Create elliptical tube mesh points.

Reimplemented from TGeoTube.

Definition at line 526 of file TGeoEltu.cxx.

Libraries for TGeoEltu:

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

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