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Reference Guide
TGeoXtru Class Reference

An extrusion with fixed outline shape in x-y and a sequence of z extents (segments).

The overall scale of the outline scales linearly between z points and the center can have an x-y offset.

Based on the initial implementation of R. Hatcher

Creation of TGeoXtru shape

A TGeoXtru represents a polygonal extrusion. It is defined by the:

  1. 'Blueprint' of the arbitrary polygon representing any Z section. This is an arbitrary polygon (convex or not) defined by the X/Y positions of its vertices.
  1. A sequence of Z sections ordered on the Z axis. Each section defines the 'actual' parameters of the polygon at a given Z. The sections may be translated with respect to the blueprint and/or scaled. The TGeoXtru segment in between 2 Z sections is a solid represented by the linear extrusion between the 2 polygons. Two consecutive sections may be defined at same Z position.
  1. TGeoXtru *xtru = TGeoXtru(Int_t nz);

    where nz=number of Z planes

  2. Double_t x[nvertices]; // array of X positions of blueprint polygon vertices

    Double_t y[nvertices]; // array of Y positions of blueprint polygon vertices

  3. xtru->DefinePolygon(nvertices,x,y);
  4. DefineSection(0, z0, x0, y0, scale0); // Z position, offset and scale for first section

    ‘DefineSection(1, z1, x1, y1, scale1); // -’'- second section .... DefineSection(nz-1, zn, xn, yn, scalen); // parameters for last section`

NOTES

Currently navigation functionality not fully implemented (only Contains()). Decomposition in concave polygons not implemented - drawing in solid mode within x3d produces incorrect end-faces

Definition at line 21 of file TGeoXtru.h.

Classes

struct  ThreadData_t
 

Public Member Functions

 TGeoXtru ()
 dummy ctor More...
 
 TGeoXtru (Int_t nz)
 Default constructor. More...
 
 TGeoXtru (Double_t *param)
 Default constructor in GEANT3 style. More...
 
virtual ~TGeoXtru ()
 destructor More...
 
virtual Double_t Capacity () const
 Compute capacity [length^3] of this shape. More...
 
virtual void ClearThreadData () const
 
virtual void ComputeBBox ()
 compute bounding box of the pcon 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 this shape 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...
 
virtual void CreateThreadData (Int_t nthreads)
 Create thread data for n threads max. More...
 
Bool_t DefinePolygon (Int_t nvert, const Double_t *xv, const Double_t *yv)
 Creates the polygon representing the blueprint of any Xtru section. More...
 
virtual void DefineSection (Int_t snum, Double_t z, Double_t x0=0., Double_t y0=0., Double_t scale=1.)
 defines z position of a section plane, rmin and rmax at this z. More...
 
virtual Int_t DistancetoPrimitive (Int_t px, Int_t py)
 compute closest distance from point px,py to each corner 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 polycone locate Z segment 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 tube Warning("DistFromOutside", "not implemented"); 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...
 
void DrawPolygon (Option_t *option="")
 Draw the section polygon. More...
 
virtual const TBuffer3DGetBuffer3D (Int_t reqSections, Bool_t localFrame) const
 Fills a static 3D buffer and returns a reference. More...
 
virtual TGeoShapeGetMakeRuntimeShape (TGeoShape *, TGeoMatrix *) const
 In case shape has some negative parameters, these has to be computed in order to fit 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...
 
Int_t GetNvert () const
 
Int_t GetNz () const
 
Double_t GetScale (Int_t i) const
 
ThreadData_tGetThreadData () const
 
Double_t GetX (Int_t i) const
 
Double_t GetXOffset (Int_t i) const
 
Double_t GetY (Int_t i) const
 
Double_t GetYOffset (Int_t i) const
 
Double_tGetZ () const
 
Double_t GetZ (Int_t ipl) const
 Return the Z coordinate for segment ipl. More...
 
virtual void InspectShape () const
 Print actual Xtru parameters. More...
 
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...
 
void SetCurrentVertices (Double_t x0, Double_t y0, Double_t scale)
 Set current vertex coordinates according X0, Y0 and SCALE. More...
 
void SetCurrentZ (Double_t z, Int_t iz)
 Recompute current section vertices for a given Z position within range of section iz. More...
 
virtual void SetDimensions (Double_t *param)
 
virtual void SetPoints (Double_t *points) const
 create polycone mesh points More...
 
virtual void SetPoints (Float_t *points) const
 create polycone mesh points More...
 
virtual void SetSegsAndPols (TBuffer3D &buff) const
 Fill TBuffer3D structure for segments and polygons. More...
 
virtual void Sizeof3D () const
 fill size of this 3-D object More...
 
Double_tZ (Int_t ipl)
 
- 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. 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 TGeoVolumeDivide (TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
 Divide this box shape belonging to volume "voldiv" into ndiv equal 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 Int_t GetByteCount () const
 
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 GetPointsOnSegments (Int_t npoints, Double_t *array) const
 Fills array with n random points located on the line segments of the shape mesh. More...
 
virtual Bool_t IsCylType () const
 
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 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 ()
 TNamed destructor. More...
 
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...
 
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. 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 selected pad for instance with: gROOT->SetSelectedPad(gPad). 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...
 
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. 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...
 
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). 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...
 
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. 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 Member Functions

 TGeoXtru (const TGeoXtru &)=delete
 mutex for thread data More...
 
Double_t DistToPlane (const Double_t *point, const Double_t *dir, Int_t iz, Int_t ivert, Double_t stepmax, Bool_t in) const
 Compute distance to a Xtru lateral surface. More...
 
void GetPlaneNormal (const Double_t *vert, Double_t *norm) const
 Returns normal vector to the planar quadrilateral defined by vector VERT. More...
 
void GetPlaneVertices (Int_t iz, Int_t ivert, Double_t *vert) const
 Returns (x,y,z) of 3 vertices of the surface defined by Z sections (iz, iz+1) and polygon vertices (ivert, ivert+1). More...
 
Bool_t IsPointInsidePlane (const Double_t *point, Double_t *vert, Double_t *norm) const
 Check if the quadrilateral defined by VERT contains a coplanar POINT. More...
 
TGeoXtruoperator= (const TGeoXtru &)=delete
 
Double_t SafetyToSector (const Double_t *point, Int_t iz, Double_t safmin, Bool_t in)
 Compute safety to sector iz, returning also the closest segment index. More...
 
void SetIz (Int_t iz)
 Set current z-plane. More...
 
void SetSeg (Int_t iseg)
 Set current segment. 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 ()
 

Protected Attributes

std::mutex fMutex
 size of thread-specific array More...
 
Int_t fNvert
 
Int_t fNz
 
Double_tfScale
 
std::vector< ThreadData_t * > fThreadData
 
Int_t fThreadSize
 Navigation data per thread. More...
 
Double_tfX
 
Double_tfX0
 
Double_tfY
 
Double_tfY0
 
Double_tfZ
 
Double_t fZcurrent
 
- 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, 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 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...
 

#include <TGeoXtru.h>

Inheritance diagram for TGeoXtru:
[legend]

Constructor & Destructor Documentation

◆ TGeoXtru() [1/4]

TGeoXtru::TGeoXtru ( const TGeoXtru )
protecteddelete

mutex for thread data

◆ TGeoXtru() [2/4]

TGeoXtru::TGeoXtru ( )

dummy ctor

Definition at line 157 of file TGeoXtru.cxx.

◆ TGeoXtru() [3/4]

TGeoXtru::TGeoXtru ( Int_t  nz)

Default constructor.

Definition at line 177 of file TGeoXtru.cxx.

◆ TGeoXtru() [4/4]

TGeoXtru::TGeoXtru ( Double_t param)

Default constructor in GEANT3 style.

  • param[0] = nz // number of z planes
  • param[1] = z1 // Z position of first plane
  • param[2] = x1 // X position of first plane
  • param[3] = y1 // Y position of first plane
  • param[4] = scale1 // scale factor for first plane ...
  • param[4*(nz-1]+1] = zn
  • param[4*(nz-1)+2] = xn
  • param[4*(nz-1)+3] = yn
  • param[4*(nz-1)+4] = scalen

Definition at line 213 of file TGeoXtru.cxx.

◆ ~TGeoXtru()

TGeoXtru::~TGeoXtru ( )
virtual

destructor

Definition at line 234 of file TGeoXtru.cxx.

Member Function Documentation

◆ Capacity()

Double_t TGeoXtru::Capacity ( ) const
virtual

Compute capacity [length^3] of this shape.

Reimplemented from TGeoBBox.

Definition at line 248 of file TGeoXtru.cxx.

◆ ClearThreadData()

void TGeoXtru::ClearThreadData ( ) const
virtual

Reimplemented from TGeoShape.

Definition at line 100 of file TGeoXtru.cxx.

◆ ComputeBBox()

void TGeoXtru::ComputeBBox ( )
virtual

compute bounding box of the pcon

Reimplemented from TGeoBBox.

Definition at line 270 of file TGeoXtru.cxx.

◆ ComputeNormal()

void TGeoXtru::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 304 of file TGeoXtru.cxx.

◆ ComputeNormal_v()

void TGeoXtru::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 1276 of file TGeoXtru.cxx.

◆ Contains()

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

test if point is inside this shape

Reimplemented from TGeoBBox.

Definition at line 326 of file TGeoXtru.cxx.

◆ Contains_v()

void TGeoXtru::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 1266 of file TGeoXtru.cxx.

◆ CreateThreadData()

void TGeoXtru::CreateThreadData ( Int_t  nthreads)
virtual

Create thread data for n threads max.

Reimplemented from TGeoShape.

Definition at line 116 of file TGeoXtru.cxx.

◆ DefinePolygon()

Bool_t TGeoXtru::DefinePolygon ( Int_t  nvert,
const Double_t xv,
const Double_t yv 
)

Creates the polygon representing the blueprint of any Xtru section.

  • nvert = number of vertices >2
  • xv[nvert] = array of X vertex positions
  • yv[nvert] = array of Y vertex positions

NOTE should be called before DefineSection or ctor with 'param'

Definition at line 658 of file TGeoXtru.cxx.

◆ DefineSection()

void TGeoXtru::DefineSection ( Int_t  snum,
Double_t  z,
Double_t  x0 = 0.,
Double_t  y0 = 0.,
Double_t  scale = 1. 
)
virtual

defines z position of a section plane, rmin and rmax at this z.

Definition at line 691 of file TGeoXtru.cxx.

◆ DistancetoPrimitive()

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

compute closest distance from point px,py to each corner

Reimplemented from TGeoBBox.

Definition at line 357 of file TGeoXtru.cxx.

◆ DistFromInside()

Double_t TGeoXtru::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 polycone locate Z segment

Reimplemented from TGeoBBox.

Definition at line 431 of file TGeoXtru.cxx.

◆ DistFromInside_v()

void TGeoXtru::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 1284 of file TGeoXtru.cxx.

◆ DistFromOutside()

Double_t TGeoXtru::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 Warning("DistFromOutside", "not implemented");

Reimplemented from TGeoBBox.

Definition at line 545 of file TGeoXtru.cxx.

◆ DistFromOutside_v()

void TGeoXtru::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 1292 of file TGeoXtru.cxx.

◆ DistToPlane()

Double_t TGeoXtru::DistToPlane ( const Double_t point,
const Double_t dir,
Int_t  iz,
Int_t  ivert,
Double_t  stepmax,
Bool_t  in 
) const
protected

Compute distance to a Xtru lateral surface.

Definition at line 375 of file TGeoXtru.cxx.

◆ DrawPolygon()

void TGeoXtru::DrawPolygon ( Option_t option = "")

Draw the section polygon.

Definition at line 366 of file TGeoXtru.cxx.

◆ GetBuffer3D()

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

Fills a static 3D buffer and returns a reference.

Reimplemented from TGeoBBox.

Definition at line 1231 of file TGeoXtru.cxx.

◆ GetMakeRuntimeShape()

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

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

Reimplemented from TGeoBBox.

Definition at line 102 of file TGeoXtru.h.

◆ GetMeshNumbers()

void TGeoXtru::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 1203 of file TGeoXtru.cxx.

◆ GetNmeshVertices()

Int_t TGeoXtru::GetNmeshVertices ( ) const
virtual

Return number of vertices of the mesh representation.

Reimplemented from TGeoBBox.

Definition at line 1215 of file TGeoXtru.cxx.

◆ GetNvert()

Int_t TGeoXtru::GetNvert ( ) const
inline

Definition at line 94 of file TGeoXtru.h.

◆ GetNz()

Int_t TGeoXtru::GetNz ( ) const
inline

Definition at line 93 of file TGeoXtru.h.

◆ GetPlaneNormal()

void TGeoXtru::GetPlaneNormal ( const Double_t vert,
Double_t norm 
) const
protected

Returns normal vector to the planar quadrilateral defined by vector VERT.

The normal points outwards the xtru.

Definition at line 727 of file TGeoXtru.cxx.

◆ GetPlaneVertices()

void TGeoXtru::GetPlaneVertices ( Int_t  iz,
Int_t  ivert,
Double_t vert 
) const
protected

Returns (x,y,z) of 3 vertices of the surface defined by Z sections (iz, iz+1) and polygon vertices (ivert, ivert+1).

No range check.

Definition at line 752 of file TGeoXtru.cxx.

◆ GetScale()

Double_t TGeoXtru::GetScale ( Int_t  i) const
inline

Definition at line 99 of file TGeoXtru.h.

◆ GetThreadData()

TGeoXtru::ThreadData_t & TGeoXtru::GetThreadData ( ) const

Definition at line 91 of file TGeoXtru.cxx.

◆ GetX()

Double_t TGeoXtru::GetX ( Int_t  i) const
inline

Definition at line 95 of file TGeoXtru.h.

◆ GetXOffset()

Double_t TGeoXtru::GetXOffset ( Int_t  i) const
inline

Definition at line 97 of file TGeoXtru.h.

◆ GetY()

Double_t TGeoXtru::GetY ( Int_t  i) const
inline

Definition at line 96 of file TGeoXtru.h.

◆ GetYOffset()

Double_t TGeoXtru::GetYOffset ( Int_t  i) const
inline

Definition at line 98 of file TGeoXtru.h.

◆ GetZ() [1/2]

Double_t* TGeoXtru::GetZ ( ) const
inline

Definition at line 100 of file TGeoXtru.h.

◆ GetZ() [2/2]

Double_t TGeoXtru::GetZ ( Int_t  ipl) const

Return the Z coordinate for segment ipl.

Definition at line 715 of file TGeoXtru.cxx.

◆ InspectShape()

void TGeoXtru::InspectShape ( ) const
virtual

Print actual Xtru parameters.

Reimplemented from TGeoBBox.

Definition at line 832 of file TGeoXtru.cxx.

◆ IsPointInsidePlane()

Bool_t TGeoXtru::IsPointInsidePlane ( const Double_t point,
Double_t vert,
Double_t norm 
) const
protected

Check if the quadrilateral defined by VERT contains a coplanar POINT.

Definition at line 807 of file TGeoXtru.cxx.

◆ MakeBuffer3D()

TBuffer3D * TGeoXtru::MakeBuffer3D ( ) const
virtual

Creates a TBuffer3D describing this shape.

Coordinates are in local reference frame.

Reimplemented from TGeoBBox.

Definition at line 849 of file TGeoXtru.cxx.

◆ operator=()

TGeoXtru& TGeoXtru::operator= ( const TGeoXtru )
protecteddelete

◆ Safety()

Double_t TGeoXtru::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.

localize the Z segment

Reimplemented from TGeoBBox.

Definition at line 1005 of file TGeoXtru.cxx.

◆ Safety_v()

void TGeoXtru::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 1302 of file TGeoXtru.cxx.

◆ SafetyToSector()

Double_t TGeoXtru::SafetyToSector ( const Double_t point,
Int_t  iz,
Double_t  safmin,
Bool_t  in 
)
protected

Compute safety to sector iz, returning also the closest segment index.

Definition at line 937 of file TGeoXtru.cxx.

◆ SavePrimitive()

void TGeoXtru::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 1050 of file TGeoXtru.cxx.

◆ SetCurrentVertices()

void TGeoXtru::SetCurrentVertices ( Double_t  x0,
Double_t  y0,
Double_t  scale 
)

Set current vertex coordinates according X0, Y0 and SCALE.

Definition at line 1099 of file TGeoXtru.cxx.

◆ SetCurrentZ()

void TGeoXtru::SetCurrentZ ( Double_t  z,
Int_t  iz 
)

Recompute current section vertices for a given Z position within range of section iz.

Definition at line 1077 of file TGeoXtru.cxx.

◆ SetDimensions()

void TGeoXtru::SetDimensions ( Double_t param)
virtual
  • param[0] = nz // number of z planes
  • param[1] = z1 // Z position of first plane
  • param[2] = x1 // X position of first plane
  • param[3] = y1 // Y position of first plane
  • param[4] = scale1 // scale factor for first plane ...
  • param[4*(nz-1]+1] = zn
  • param[4*(nz-1)+2] = xn
  • param[4*(nz-1)+3] = yn
  • param[4*(nz-1)+4] = scalen

Reimplemented from TGeoBBox.

Definition at line 1121 of file TGeoXtru.cxx.

◆ SetIz()

void TGeoXtru::SetIz ( Int_t  iz)
protected

Set current z-plane.

Definition at line 142 of file TGeoXtru.cxx.

◆ SetPoints() [1/2]

void TGeoXtru::SetPoints ( Double_t points) const
virtual

create polycone mesh points

Reimplemented from TGeoBBox.

Definition at line 1145 of file TGeoXtru.cxx.

◆ SetPoints() [2/2]

void TGeoXtru::SetPoints ( Float_t points) const
virtual

create polycone mesh points

Reimplemented from TGeoBBox.

Definition at line 1174 of file TGeoXtru.cxx.

◆ SetSeg()

void TGeoXtru::SetSeg ( Int_t  iseg)
protected

Set current segment.

Definition at line 149 of file TGeoXtru.cxx.

◆ SetSegsAndPols()

void TGeoXtru::SetSegsAndPols ( TBuffer3D buff) const
virtual

Fill TBuffer3D structure for segments and polygons.

Reimplemented from TGeoBBox.

Definition at line 871 of file TGeoXtru.cxx.

◆ Sizeof3D()

void TGeoXtru::Sizeof3D ( ) const
virtual

fill size of this 3-D object

Reimplemented from TGeoBBox.

Definition at line 1224 of file TGeoXtru.cxx.

◆ Z()

Double_t& TGeoXtru::Z ( Int_t  ipl)
inline

Definition at line 107 of file TGeoXtru.h.

Member Data Documentation

◆ fMutex

std::mutex TGeoXtru::fMutex
mutableprotected

size of thread-specific array

Definition at line 53 of file TGeoXtru.h.

◆ fNvert

Int_t TGeoXtru::fNvert
protected

Definition at line 41 of file TGeoXtru.h.

◆ fNz

Int_t TGeoXtru::fNz
protected

Definition at line 42 of file TGeoXtru.h.

◆ fScale

Double_t* TGeoXtru::fScale
protected

Definition at line 47 of file TGeoXtru.h.

◆ fThreadData

std::vector<ThreadData_t*> TGeoXtru::fThreadData
mutableprotected

Definition at line 51 of file TGeoXtru.h.

◆ fThreadSize

Int_t TGeoXtru::fThreadSize
mutableprotected

Navigation data per thread.

Definition at line 52 of file TGeoXtru.h.

◆ fX

Double_t* TGeoXtru::fX
protected

Definition at line 44 of file TGeoXtru.h.

◆ fX0

Double_t* TGeoXtru::fX0
protected

Definition at line 48 of file TGeoXtru.h.

◆ fY

Double_t* TGeoXtru::fY
protected

Definition at line 45 of file TGeoXtru.h.

◆ fY0

Double_t* TGeoXtru::fY0
protected

Definition at line 49 of file TGeoXtru.h.

◆ fZ

Double_t* TGeoXtru::fZ
protected

Definition at line 46 of file TGeoXtru.h.

◆ fZcurrent

Double_t TGeoXtru::fZcurrent
protected

Definition at line 43 of file TGeoXtru.h.

Libraries for TGeoXtru:
[legend]

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