Logo ROOT   6.08/07
Reference Guide
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TGeoTorus Class Reference

Torus segment class.

A torus has 5 parameters :

{
TCanvas *c = new TCanvas("c", "c",0,0,600,600);
new TGeoManager("torus", "poza2");
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);
TGeoVolume *vol = gGeoManager->MakeTorus("TORUS",med, 40,20,25,0,270);
top->AddNode(vol,1);
top->Draw();
TView *view = gPad->GetView();
view->ShowAxis();
}
pict1_TGeoTorus_001.png

Definition at line 19 of file TGeoTorus.h.

Public Member Functions

 TGeoTorus ()
 Default constructor. More...
 
 TGeoTorus (Double_t r, Double_t rmin, Double_t rmax, Double_t phi1=0, Double_t dphi=360)
 Constructor without name. More...
 
 TGeoTorus (const char *name, Double_t r, Double_t rmin, Double_t rmax, Double_t phi1=0, Double_t dphi=360)
 Constructor with name. More...
 
 TGeoTorus (Double_t *params)
 Constructor based on an array of parameters. More...
 
virtual ~TGeoTorus ()
 
virtual Double_t Capacity () const
 Computes capacity of the shape in [length^3]. More...
 
virtual void ComputeBBox ()
 Compute bounding box of the torus. More...
 
virtual void ComputeNormal (const Double_t *point, const Double_t *dir, Double_t *norm)
 Compute normal to closest surface from POINT. More...
 
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. More...
 
virtual Bool_t Contains (const Double_t *point) const
 Test if point is inside the torus. More...
 
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. More...
 
Double_t Daxis (const Double_t *pt, const Double_t *dir, Double_t t) const
 Computes distance to axis of the torus from point pt + t*dir;. More...
 
Double_t DDaxis (const Double_t *pt, const Double_t *dir, Double_t t) const
 Computes derivative w.r.t. t of the distance to axis of the torus from point pt + t*dir;. More...
 
Double_t DDDaxis (const Double_t *pt, const Double_t *dir, Double_t t) const
 Second derivative of distance to torus axis w.r.t t. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Compute closest distance from point px,py to each vertex. More...
 
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 torus. More...
 
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. More...
 
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 torus. More...
 
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. More...
 
virtual TGeoVolumeDivide (TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
 Divide this torus shape belonging to volume "voldiv" into ndiv volumes called divname, from start position with the given step. More...
 
virtual const char * GetAxisName (Int_t iaxis) const
 Returns name of axis IAXIS. More...
 
virtual Double_t GetAxisRange (Int_t iaxis, Double_t &xlo, Double_t &xhi) const
 Get range of shape for a given axis. More...
 
virtual void GetBoundingCylinder (Double_t *param) const
 Fill vector param[4] with the bounding cylinder parameters. More...
 
virtual const TBuffer3DGetBuffer3D (Int_t reqSections, Bool_t localFrame) const
 Fills a static 3D buffer and returns a reference. More...
 
virtual Int_t GetByteCount () const
 
Double_t GetDphi () const
 
virtual TGeoShapeGetMakeRuntimeShape (TGeoShape *mother, TGeoMatrix *mat) const
 Create a shape fitting the mother. More...
 
virtual void GetMeshNumbers (Int_t &nvert, Int_t &nsegs, Int_t &npols) const
 Returns numbers of vertices, segments and polygons composing the shape mesh. More...
 
virtual Int_t GetNmeshVertices () const
 Return number of vertices of the mesh representation. More...
 
Double_t GetPhi1 () const
 
virtual Bool_t GetPointsOnSegments (Int_t, Double_t *) const
 Fills array with n random points located on the line segments of the shape mesh. More...
 
Double_t GetR () const
 
Double_t GetRmax () const
 
Double_t GetRmin () const
 
virtual void InspectShape () const
 print shape parameters More...
 
virtual Bool_t IsCylType () const
 
virtual TBuffer3DMakeBuffer3D () const
 Creates a TBuffer3D describing this shape. More...
 
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. More...
 
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. More...
 
virtual void SavePrimitive (std::ostream &out, Option_t *option="")
 Save a primitive as a C++ statement(s) on output stream "out". More...
 
virtual void SetDimensions (Double_t *param)
 Set torus dimensions starting from a list. More...
 
virtual void SetPoints (Double_t *points) const
 Create torus mesh points. More...
 
virtual void SetPoints (Float_t *points) const
 Create torus mesh points. More...
 
virtual void SetSegsAndPols (TBuffer3D &buff) const
 Fill TBuffer3D structure for segments and polygons. More...
 
void SetTorusDimensions (Double_t r, Double_t rmin, Double_t rmax, Double_t phi1, Double_t dphi)
 Set torus dimensions. More...
 
virtual void Sizeof3D () const
 fill size of this 3-D object More...
 
Int_t SolveCubic (Double_t a, Double_t b, Double_t c, Double_t *x) const
 Find real solutions of the cubic equation : x^3 + a*x^2 + b*x + c = 0 Input: a,b,c Output: x[3] real solutions Returns number of real solutions (1 or 3) More...
 
Int_t SolveQuartic (Double_t a, Double_t b, Double_t c, Double_t d, Double_t *x) const
 Find real solutions of the quartic equation : x^4 + a*x^3 + b*x^2 + c*x + d = 0 Input: a,b,c,d Output: x[4] - real solutions Returns number of real solutions (0 to 3) More...
 
Double_t ToBoundary (const Double_t *pt, const Double_t *dir, Double_t r, Bool_t in) const
 Returns distance to the surface or the torus (fR,r) from a point, along a direction. More...
 
- Public Member Functions inherited from TGeoBBox
 TGeoBBox ()
 Default constructor. More...
 
 TGeoBBox (Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
 Constructor where half-lengths are provided. More...
 
 TGeoBBox (const char *name, Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
 Constructor with shape name. More...
 
 TGeoBBox (Double_t *param)
 Constructor based on the array of parameters param[0] - half-length in x param[1] - half-length in y param[2] - half-length in z. More...
 
virtual ~TGeoBBox ()
 Destructor. More...
 
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. More...
 
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. More...
 
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. More...
 
virtual const Double_tGetOrigin () 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. More...
 
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. More...
 
void SetBoxPoints (Double_t *points) const
 Fill box vertices to an array. More...
 
- Public Member Functions inherited from TGeoShape
 TGeoShape ()
 Default constructor. More...
 
 TGeoShape (const char *name)
 Default constructor. More...
 
virtual ~TGeoShape ()
 Destructor. More...
 
virtual void AfterStreamer ()
 
void CheckShape (Int_t testNo, Int_t nsamples=10000, Option_t *option="")
 Test for shape navigation methods. More...
 
virtual void ClearThreadData () const
 
virtual void CreateThreadData (Int_t)
 
virtual void Draw (Option_t *option="")
 Draw this shape. More...
 
virtual void ExecuteEvent (Int_t event, Int_t px, Int_t py)
 Execute mouse actions on this shape. More...
 
Int_t GetId () const
 
virtual const char * GetName () const
 Get the shape name. More...
 
const char * GetPointerName () const
 Provide a pointer name containing uid. More...
 
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. More...
 
void ResetShapeBit (UInt_t f)
 
void SetId (Int_t id)
 
void SetRuntime (Bool_t flag=kTRUE)
 
void SetShapeBit (UInt_t f, Bool_t set)
 Equivalent of TObject::SetBit. More...
 
void SetShapeBit (UInt_t f)
 
Int_t ShapeDistancetoPrimitive (Int_t numpoints, Int_t px, Int_t py) const
 Returns distance to shape primitive mesh. More...
 
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 TString &name, const TString &title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
 
virtual ~TNamed ()
 
virtual void Clear (Option_t *option="")
 Set name and title to empty strings (""). More...
 
virtual TObjectClone (const char *newname="") const
 Make a clone of an object using the Streamer facility. More...
 
virtual Int_t Compare (const TObject *obj) const
 Compare two TNamed objects. More...
 
virtual void Copy (TObject &named) const
 Copy this to obj. More...
 
virtual void FillBuffer (char *&buffer)
 Encode TNamed into output buffer. More...
 
virtual const char * GetTitle () const
 Returns title of object. More...
 
virtual ULong_t Hash () const
 Return hash value for this object. More...
 
virtual Bool_t IsSortable () const
 
virtual void ls (Option_t *option="") const
 List TNamed name and title. More...
 
TNamedoperator= (const TNamed &rhs)
 TNamed assignment operator. More...
 
virtual void Print (Option_t *option="") const
 Print TNamed name and title. More...
 
virtual void SetName (const char *name)
 Set the name of the TNamed. More...
 
virtual void SetNameTitle (const char *name, const char *title)
 Set all the TNamed parameters (name and title). More...
 
virtual void SetTitle (const char *title="")
 Set the title of the TNamed. More...
 
virtual Int_t Sizeof () const
 Return size of the TNamed part of the TObject. More...
 
- Public Member Functions inherited from TObject
 TObject ()
 TObject constructor. More...
 
 TObject (const TObject &object)
 TObject copy ctor. More...
 
virtual ~TObject ()
 TObject destructor. More...
 
void AbstractMethod (const char *method) const
 Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
 
virtual void AppendPad (Option_t *option="")
 Append graphics object to current pad. More...
 
virtual void Browse (TBrowser *b)
 Browse object. May be overridden for another default action. More...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Delete (Option_t *option="")
 Delete this object. More...
 
virtual void DrawClass () const
 Draw class inheritance tree of the class to which this object belongs. More...
 
virtual TObjectDrawClone (Option_t *option="") const
 Draw a clone of this object in the current pad. More...
 
virtual void Dump () const
 Dump contents of object on stdout. More...
 
virtual void Error (const char *method, const char *msgfmt,...) const
 Issue error message. More...
 
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. More...
 
virtual void Execute (TMethod *method, TObjArray *params, Int_t *error=0)
 Execute method on this object with parameters stored in the TObjArray. More...
 
virtual void Fatal (const char *method, const char *msgfmt,...) const
 Issue fatal error message. More...
 
virtual TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () const
 Get option used by the graphics system to draw this object. More...
 
virtual const char * GetIconName () const
 Returns mime type name of object. More...
 
virtual char * GetObjectInfo (Int_t px, Int_t py) const
 Returns string containing info about the object at position (px,py). More...
 
virtual Option_tGetOption () const
 
virtual UInt_t GetUniqueID () const
 Return the unique object id. More...
 
virtual Bool_t HandleTimer (TTimer *timer)
 Execute action in response of a timer timing out. More...
 
virtual void Info (const char *method, const char *msgfmt,...) const
 Issue info message. More...
 
virtual Bool_t InheritsFrom (const char *classname) const
 Returns kTRUE if object inherits from class "classname". More...
 
virtual Bool_t InheritsFrom (const TClass *cl) const
 Returns kTRUE if object inherits from TClass cl. More...
 
virtual void Inspect () const
 Dump contents of this object in a graphics canvas. More...
 
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). More...
 
virtual Bool_t IsFolder () const
 Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
 
Bool_t IsOnHeap () const
 
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). More...
 
virtual Bool_t Notify ()
 This method must be overridden to handle object notification. More...
 
void Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
 Use this method to declare a method obsolete. More...
 
void operator delete (void *ptr)
 Operator delete. More...
 
void operator delete[] (void *ptr)
 Operator delete []. More...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (const TObject &rhs)
 TObject assignment operator. More...
 
virtual void Pop ()
 Pop on object drawn in a pad to the top of the display list. More...
 
virtual Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
virtual void RecursiveRemove (TObject *obj)
 Recursively remove this object from a list. More...
 
void ResetBit (UInt_t f)
 
virtual void SaveAs (const char *filename="", Option_t *option="") const
 Save this object in the file specified by filename. More...
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
virtual void SetDrawOption (Option_t *option="")
 Set drawing option for object. More...
 
virtual void SetUniqueID (UInt_t uid)
 Set the unique object id. More...
 
virtual void SysError (const char *method, const char *msgfmt,...) const
 Issue system error message. More...
 
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. More...
 
virtual void Warning (const char *method, const char *msgfmt,...) const
 Issue warning message. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
 Write this object to the current directory. More...
 
virtual Int_t Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
 Write this object to the current directory. More...
 

Protected Attributes

Double_t fDphi
 
Double_t fPhi1
 
Double_t fR
 
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
 

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, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- 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. More...
 
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. More...
 
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. More...
 
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. More...
 
- 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. More...
 
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. More...
 
static Double_t EpsMch ()
 static function returning the machine round-off error More...
 
static TGeoMatrixGetTransform ()
 Returns current transformation matrix that applies to shape. More...
 
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. More...
 
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. More...
 
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]. More...
 
static Bool_t IsSameWithinTolerance (Double_t a, Double_t b)
 Check if two numbers differ with less than a tolerance. More...
 
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) More...
 
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. More...
 
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. More...
 
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) More...
 
static void SetTransform (TGeoMatrix *matrix)
 Set current transformation matrix that applies to shape. More...
 
static Double_t Tolerance ()
 
- Static Public Member Functions inherited from TObject
static Long_t GetDtorOnly ()
 Return destructor only flag. More...
 
static Bool_t GetObjectStat ()
 Get status of object stat flag. More...
 
static void SetDtorOnly (void *obj)
 Set destructor only flag. More...
 
static void SetObjectStat (Bool_t stat)
 Turn on/off tracking of objects in the TObjectTable. More...
 
- 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. More...
 
- Protected Member Functions inherited from TGeoShape
Int_t GetBasicColor () const
 Get the basic color (0-7). More...
 
void SetOnBoundary (Bool_t)
 
void TransformPoints (Double_t *points, UInt_t NbPoints) const
 Tranform a set of points (LocalToMaster) More...
 
- 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). More...
 
void MakeZombie ()
 

#include <TGeoTorus.h>

Inheritance diagram for TGeoTorus:
[legend]

Constructor & Destructor Documentation

◆ TGeoTorus() [1/4]

TGeoTorus::TGeoTorus ( )

Default constructor.

Definition at line 59 of file TGeoTorus.cxx.

◆ TGeoTorus() [2/4]

TGeoTorus::TGeoTorus ( Double_t  r,
Double_t  rmin,
Double_t  rmax,
Double_t  phi1 = 0,
Double_t  dphi = 360 
)

Constructor without name.

Definition at line 72 of file TGeoTorus.cxx.

◆ TGeoTorus() [3/4]

TGeoTorus::TGeoTorus ( const char *  name,
Double_t  r,
Double_t  rmin,
Double_t  rmax,
Double_t  phi1 = 0,
Double_t  dphi = 360 
)

Constructor with name.

Definition at line 85 of file TGeoTorus.cxx.

◆ TGeoTorus() [4/4]

TGeoTorus::TGeoTorus ( Double_t param)

Constructor based on an array of parameters.

  • param[0] = R
  • param[1] = Rmin
  • param[2] = Rmax
  • param[3] = Phi1
  • param[4] = Dphi

Definition at line 103 of file TGeoTorus.cxx.

◆ ~TGeoTorus()

virtual TGeoTorus::~TGeoTorus ( )
inlinevirtual

Definition at line 45 of file TGeoTorus.h.

Member Function Documentation

◆ Capacity()

Double_t TGeoTorus::Capacity ( ) const
virtual

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

Reimplemented from TGeoBBox.

Definition at line 115 of file TGeoTorus.cxx.

◆ ComputeBBox()

void TGeoTorus::ComputeBBox ( )
virtual

Compute bounding box of the torus.

Reimplemented from TGeoBBox.

Definition at line 124 of file TGeoTorus.cxx.

◆ ComputeNormal()

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

Compute normal to closest surface from POINT.

Reimplemented from TGeoBBox.

Definition at line 171 of file TGeoTorus.cxx.

◆ ComputeNormal_v()

void TGeoTorus::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 TGeoBBox.

Definition at line 1230 of file TGeoTorus.cxx.

◆ Contains()

Bool_t TGeoTorus::Contains ( const Double_t point) const
virtual

Test if point is inside the torus.

check phi range

Reimplemented from TGeoBBox.

Definition at line 215 of file TGeoTorus.cxx.

◆ Contains_v()

void TGeoTorus::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 TGeoBBox.

Definition at line 1220 of file TGeoTorus.cxx.

◆ Daxis()

Double_t TGeoTorus::Daxis ( const Double_t pt,
const Double_t dir,
Double_t  t 
) const

Computes distance to axis of the torus from point pt + t*dir;.

Definition at line 247 of file TGeoTorus.cxx.

◆ DDaxis()

Double_t TGeoTorus::DDaxis ( const Double_t pt,
const Double_t dir,
Double_t  t 
) const

Computes derivative w.r.t. t of the distance to axis of the torus from point pt + t*dir;.

Definition at line 258 of file TGeoTorus.cxx.

◆ DDDaxis()

Double_t TGeoTorus::DDDaxis ( const Double_t pt,
const Double_t dir,
Double_t  t 
) const

Second derivative of distance to torus axis w.r.t t.

Definition at line 273 of file TGeoTorus.cxx.

◆ DistancetoPrimitive()

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

Compute closest distance from point px,py to each vertex.

Reimplemented from TGeoBBox.

Definition at line 235 of file TGeoTorus.cxx.

◆ DistFromInside()

Double_t TGeoTorus::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 torus.

Reimplemented from TGeoBBox.

Definition at line 291 of file TGeoTorus.cxx.

◆ DistFromInside_v()

void TGeoTorus::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 TGeoBBox.

Definition at line 1238 of file TGeoTorus.cxx.

◆ DistFromOutside()

Double_t TGeoTorus::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 torus.

Reimplemented from TGeoBBox.

Definition at line 330 of file TGeoTorus.cxx.

◆ DistFromOutside_v()

void TGeoTorus::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 TGeoBBox.

Definition at line 1246 of file TGeoTorus.cxx.

◆ Divide()

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

Divide this torus shape belonging to volume "voldiv" into ndiv volumes called divname, from start position with the given step.

Reimplemented from TGeoBBox.

Definition at line 445 of file TGeoTorus.cxx.

◆ GetAxisName()

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

Returns name of axis IAXIS.

Reimplemented from TGeoBBox.

Definition at line 454 of file TGeoTorus.cxx.

◆ GetAxisRange()

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

Get range of shape for a given axis.

Reimplemented from TGeoBBox.

Definition at line 471 of file TGeoTorus.cxx.

◆ GetBoundingCylinder()

void TGeoTorus::GetBoundingCylinder ( Double_t param) const
virtual

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

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

Reimplemented from TGeoBBox.

Definition at line 498 of file TGeoTorus.cxx.

◆ GetBuffer3D()

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

Fills a static 3D buffer and returns a reference.

Reimplemented from TGeoBBox.

Definition at line 1171 of file TGeoTorus.cxx.

◆ GetByteCount()

virtual Int_t TGeoTorus::GetByteCount ( ) const
inlinevirtual

Reimplemented from TGeoBBox.

Definition at line 66 of file TGeoTorus.h.

◆ GetDphi()

Double_t TGeoTorus::GetDphi ( ) const
inline

Definition at line 75 of file TGeoTorus.h.

◆ GetMakeRuntimeShape()

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

Create a shape fitting the mother.

Reimplemented from TGeoBBox.

Definition at line 509 of file TGeoTorus.cxx.

◆ GetMeshNumbers()

void TGeoTorus::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 TGeoBBox.

Definition at line 1148 of file TGeoTorus.cxx.

◆ GetNmeshVertices()

Int_t TGeoTorus::GetNmeshVertices ( ) const
virtual

Return number of vertices of the mesh representation.

Reimplemented from TGeoBBox.

Definition at line 911 of file TGeoTorus.cxx.

◆ GetPhi1()

Double_t TGeoTorus::GetPhi1 ( ) const
inline

Definition at line 74 of file TGeoTorus.h.

◆ GetPointsOnSegments()

virtual Bool_t TGeoTorus::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 TGeoBBox.

Definition at line 70 of file TGeoTorus.h.

◆ GetR()

Double_t TGeoTorus::GetR ( ) const
inline

Definition at line 71 of file TGeoTorus.h.

◆ GetRmax()

Double_t TGeoTorus::GetRmax ( ) const
inline

Definition at line 73 of file TGeoTorus.h.

◆ GetRmin()

Double_t TGeoTorus::GetRmin ( ) const
inline

Definition at line 72 of file TGeoTorus.h.

◆ InspectShape()

void TGeoTorus::InspectShape ( ) const
virtual

print shape parameters

Reimplemented from TGeoBBox.

Definition at line 519 of file TGeoTorus.cxx.

◆ IsCylType()

virtual Bool_t TGeoTorus::IsCylType ( ) const
inlinevirtual

Reimplemented from TGeoBBox.

Definition at line 77 of file TGeoTorus.h.

◆ MakeBuffer3D()

TBuffer3D * TGeoTorus::MakeBuffer3D ( ) const
virtual

Creates a TBuffer3D describing this shape.

Coordinates are in local reference frame.

Reimplemented from TGeoBBox.

Definition at line 535 of file TGeoTorus.cxx.

◆ Safety()

Double_t TGeoTorus::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 TGeoBBox.

Definition at line 727 of file TGeoTorus.cxx.

◆ Safety_v()

void TGeoTorus::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 TGeoBBox.

Definition at line 1256 of file TGeoTorus.cxx.

◆ SavePrimitive()

void TGeoTorus::SavePrimitive ( std::ostream &  out,
Option_t option = "" 
)
virtual

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

Reimplemented from TGeoBBox.

Definition at line 755 of file TGeoTorus.cxx.

◆ SetDimensions()

void TGeoTorus::SetDimensions ( Double_t param)
virtual

Set torus dimensions starting from a list.

Reimplemented from TGeoBBox.

Definition at line 785 of file TGeoTorus.cxx.

◆ SetPoints() [1/2]

void TGeoTorus::SetPoints ( Double_t points) const
virtual

Create torus mesh points.

Reimplemented from TGeoBBox.

Definition at line 793 of file TGeoTorus.cxx.

◆ SetPoints() [2/2]

void TGeoTorus::SetPoints ( Float_t points) const
virtual

Create torus mesh points.

Reimplemented from TGeoBBox.

Definition at line 850 of file TGeoTorus.cxx.

◆ SetSegsAndPols()

void TGeoTorus::SetSegsAndPols ( TBuffer3D buff) const
virtual

Fill TBuffer3D structure for segments and polygons.

Reimplemented from TGeoBBox.

Definition at line 569 of file TGeoTorus.cxx.

◆ SetTorusDimensions()

void TGeoTorus::SetTorusDimensions ( Double_t  r,
Double_t  rmin,
Double_t  rmax,
Double_t  phi1,
Double_t  dphi 
)

Set torus dimensions.

Definition at line 771 of file TGeoTorus.cxx.

◆ Sizeof3D()

void TGeoTorus::Sizeof3D ( ) const
virtual

fill size of this 3-D object

Reimplemented from TGeoBBox.

Definition at line 923 of file TGeoTorus.cxx.

◆ SolveCubic()

Int_t TGeoTorus::SolveCubic ( Double_t  a,
Double_t  b,
Double_t  c,
Double_t x 
) const

Find real solutions of the cubic equation : x^3 + a*x^2 + b*x + c = 0 Input: a,b,c Output: x[3] real solutions Returns number of real solutions (1 or 3)

Definition at line 933 of file TGeoTorus.cxx.

◆ SolveQuartic()

Int_t TGeoTorus::SolveQuartic ( Double_t  a,
Double_t  b,
Double_t  c,
Double_t  d,
Double_t x 
) const

Find real solutions of the quartic equation : x^4 + a*x^3 + b*x^2 + c*x + d = 0 Input: a,b,c,d Output: x[4] - real solutions Returns number of real solutions (0 to 3)

Definition at line 975 of file TGeoTorus.cxx.

◆ ToBoundary()

Double_t TGeoTorus::ToBoundary ( const Double_t pt,
const Double_t dir,
Double_t  r,
Bool_t  in 
) const

Returns distance to the surface or the torus (fR,r) from a point, along a direction.

Point is close enough to the boundary so that the distance to the torus is decreasing while moving along the given direction.

Definition at line 1063 of file TGeoTorus.cxx.

Member Data Documentation

◆ fDphi

Double_t TGeoTorus::fDphi
protected

Definition at line 27 of file TGeoTorus.h.

◆ fPhi1

Double_t TGeoTorus::fPhi1
protected

Definition at line 26 of file TGeoTorus.h.

◆ fR

Double_t TGeoTorus::fR
protected

Definition at line 23 of file TGeoTorus.h.

◆ fRmax

Double_t TGeoTorus::fRmax
protected

Definition at line 25 of file TGeoTorus.h.

◆ fRmin

Double_t TGeoTorus::fRmin
protected

Definition at line 24 of file TGeoTorus.h.


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