Logo ROOT  
Reference Guide
TGeoGtra Class Reference

Gtra is a twisted trapezoid.

i.e. one for which the faces perpendicular to z are trapezia and their centres are not the same x, y. It has 12 parameters: the half length in z, the polar angles from the centre of the face at low z to that at high z, twist, H1 the half length in y at low z, LB1 the half length in x at low z and y low edge, LB2 the half length in x at low z and y high edge, TH1 the angle w.r.t. the y axis from the centre of low y edge to the centre of the high y edge, and H2, LB2, LH2, TH2, the corresponding quantities at high z.

{
TCanvas *c = new TCanvas("c", "c",0,0,600,600);
new TGeoManager("gtra", "poza11");
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->MakeGtra("Gtra",med, 30,15,30,30,20,10,15,0,20,10,15,0);
vol->SetLineWidth(2);
top->AddNode(vol,1);
top->Draw();
TView *view = gPad->GetView();
view->ShowAxis();
}

Definition at line 145 of file TGeoArb8.h.

Public Member Functions

 TGeoGtra ()
 Default ctor. More...
 
 TGeoGtra (const char *name, Double_t dz, Double_t theta, Double_t phi, Double_t twist, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2)
 Constructor providing the name of the shape. More...
 
 TGeoGtra (Double_t dz, Double_t theta, Double_t phi, Double_t twist, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2)
 Constructor. More...
 
virtual ~TGeoGtra ()
 Destructor. 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 shape. 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 inside point to surface of the shape. 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 TGeoShapeGetMakeRuntimeShape (TGeoShape *mother, TGeoMatrix *mat) const
 In case shape has some negative parameters, these has to be computed in order to fit the mother. More...
 
Double_t GetTwistAngle () const
 
virtual Double_t Safety (const Double_t *point, Bool_t in=kTRUE) const
 Computes the closest distance from given point to this shape. 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 all arb8 params in one step. More...
 
- Public Member Functions inherited from TGeoTrap
 TGeoTrap ()
 Default ctor. More...
 
 TGeoTrap (const char *name, Double_t dz, Double_t theta, Double_t phi, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2)
 Constructor with name. More...
 
 TGeoTrap (Double_t dz, Double_t theta, Double_t phi)
 Constructor providing just a range in Z, theta and phi. More...
 
 TGeoTrap (Double_t dz, Double_t theta, Double_t phi, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2)
 Normal constructor. More...
 
virtual ~TGeoTrap ()
 Destructor. More...
 
virtual TGeoVolumeDivide (TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
 Divide this trapezoid shape belonging to volume "voldiv" into ndiv volumes called divname, from start position with the given step. More...
 
Double_t GetAlpha1 () const
 
Double_t GetAlpha2 () const
 
Double_t GetBl1 () const
 
Double_t GetBl2 () const
 
Double_t GetH1 () const
 
Double_t GetH2 () const
 
Double_t GetPhi () const
 
Double_t GetTheta () const
 
Double_t GetTl1 () const
 
Double_t GetTl2 () const
 
- Public Member Functions inherited from TGeoArb8
 TGeoArb8 ()
 Default constructor. More...
 
 TGeoArb8 (const char *name, Double_t dz, Double_t *vertices=0)
 Named constructor. More...
 
 TGeoArb8 (Double_t dz, Double_t *vertices=0)
 Constructor. More...
 
virtual ~TGeoArb8 ()
 Destructor. More...
 
virtual Double_t Capacity () const
 Computes capacity of the shape in [length^3]. More...
 
virtual void ComputeBBox ()
 Computes bounding box for an Arb8 shape. 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...
 
void ComputeTwist ()
 Computes tangents of twist angles (angles between projections on XY plane of corresponding -dz +dz edges). 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...
 
Double_t DistToPlane (const Double_t *point, const Double_t *dir, Int_t ipl, Bool_t in) const
 Computes distance to plane ipl : More...
 
virtual Double_t GetAxisRange (Int_t iaxis, Double_t &xlo, Double_t &xhi) const
 Get shape range on 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
 
Double_t GetClosestEdge (const Double_t *point, Double_t *vert, Int_t &isegment) const
 Get index of the edge of the quadrilater represented by vert closest to point. More...
 
Double_t GetDz () const
 
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 arb8. Returns 0 if successful. More...
 
virtual Bool_t GetPointsOnFacet (Int_t, Int_t, Double_t *) const
 Fills array with n random points located on the surface of indexed facet. More...
 
Double_t GetTwist (Int_t iseg) const
 Get twist for segment I in range [0,3]. More...
 
Double_tGetVertices ()
 
virtual void InspectShape () const
 Prints shape parameters. More...
 
virtual Bool_t IsCylType () const
 
Bool_t IsTwisted () const
 
Double_t SafetyToFace (const Double_t *point, Int_t iseg, Bool_t in) const
 Estimate safety to lateral plane defined by segment iseg in range [0,3] Might be negative: plane seen only from inside. More...
 
void SetDz (Double_t dz)
 
void SetPlaneVertices (Double_t zpl, Double_t *vertices) const
 Computes intersection points between plane at zpl and non-horizontal edges. More...
 
virtual void SetPoints (Double_t *points) const
 Creates arb8 mesh points. More...
 
virtual void SetPoints (Float_t *points) const
 Creates arb8 mesh points. More...
 
virtual void SetVertex (Int_t vnum, Double_t x, Double_t y)
 Set values for a given vertex. More...
 
virtual void Sizeof3D () const
 Fill size of this 3-D object. More...
 
- Public Member Functions inherited from TGeoBBox
 TGeoBBox ()
 Default constructor. 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...
 
 TGeoBBox (Double_t dx, Double_t dy, Double_t dz, Double_t *origin=0)
 Constructor where half-lengths are provided. 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 Int_t DistancetoPrimitive (Int_t px, Int_t py)
 Compute closest distance from point px,py to each corner. More...
 
virtual const char * GetAxisName (Int_t iaxis) const
 Returns name of axis IAXIS. More...
 
virtual const TBuffer3DGetBuffer3D (Int_t reqSections, Bool_t localFrame) const
 Fills a static 3D buffer and returns a reference. 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 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
 
virtual const Double_tGetOrigin () const
 
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 IsNullBox () const
 
virtual Bool_t IsValidBox () const
 
virtual TBuffer3DMakeBuffer3D () const
 Creates a TBuffer3D describing this shape. More...
 
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...
 
virtual void SetSegsAndPols (TBuffer3D &buffer) const
 Fills TBuffer3D structure for segments and polygons. 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)
 
void SetShapeBit (UInt_t f, Bool_t set)
 Equivalent of TObject::SetBit. More...
 
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 TNamed &named)
 TNamed copy ctor. More...
 
 TNamed (const TString &name, const TString &title)
 
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)
 
void SetBit (UInt_t f, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
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 Attributes

Double_t fTwistAngle
 
- Protected Attributes inherited from TGeoTrap
Double_t fAlpha1
 
Double_t fAlpha2
 
Double_t fBl1
 
Double_t fBl2
 
Double_t fH1
 
Double_t fH2
 
Double_t fPhi
 
Double_t fTheta
 
Double_t fTl1
 
Double_t fTl2
 
- Protected Attributes inherited from TGeoArb8
Double_t fDz {0}
 
Double_tfTwist {nullptr}
 
Double_t fXY [8][2]
 [4] tangents of twist angles More...
 
- 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 TGeoArb8
static void GetPlaneNormal (Double_t *p1, Double_t *p2, Double_t *p3, Double_t *norm)
 Computes normal to plane defined by P1, P2 and P3. More...
 
static Bool_t InsidePolygon (Double_t x, Double_t y, Double_t *pts)
 Finds if a point in XY plane is inside the polygon defines by PTS. More...
 
static Bool_t IsSamePoint (const Double_t *p1, const Double_t *p2)
 
- 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 Types inherited from TGeoArb8
enum  EGeoArb8Type { kArb8Trap = BIT(27), kArb8Tra = BIT(28) }
 
- Protected Member Functions inherited from TGeoArb8
 TGeoArb8 (const TGeoArb8 &)
 Copy constructor. More...
 
void CopyTwist (Double_t *twist=nullptr)
 Copy twist values from source array. More...
 
TGeoArb8operator= (const TGeoArb8 &)
 Assignment operator. 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 <TGeoArb8.h>

Inheritance diagram for TGeoGtra:
[legend]

Constructor & Destructor Documentation

◆ TGeoGtra() [1/3]

TGeoGtra::TGeoGtra ( )

Default ctor.

Definition at line 1865 of file TGeoArb8.cxx.

◆ TGeoGtra() [2/3]

TGeoGtra::TGeoGtra ( Double_t  dz,
Double_t  theta,
Double_t  phi,
Double_t  twist,
Double_t  h1,
Double_t  bl1,
Double_t  tl1,
Double_t  alpha1,
Double_t  h2,
Double_t  bl2,
Double_t  tl2,
Double_t  alpha2 
)

Constructor.

Definition at line 1874 of file TGeoArb8.cxx.

◆ TGeoGtra() [3/3]

TGeoGtra::TGeoGtra ( const char *  name,
Double_t  dz,
Double_t  theta,
Double_t  phi,
Double_t  twist,
Double_t  h1,
Double_t  bl1,
Double_t  tl1,
Double_t  alpha1,
Double_t  h2,
Double_t  bl2,
Double_t  tl2,
Double_t  alpha2 
)

Constructor providing the name of the shape.

Definition at line 1913 of file TGeoArb8.cxx.

◆ ~TGeoGtra()

TGeoGtra::~TGeoGtra ( )
virtual

Destructor.

Definition at line 1952 of file TGeoArb8.cxx.

Member Function Documentation

◆ DistFromInside()

Double_t TGeoGtra::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 shape.

Reimplemented from TGeoTrap.

Definition at line 1959 of file TGeoArb8.cxx.

◆ DistFromInside_v()

void TGeoGtra::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 TGeoTrap.

Definition at line 2111 of file TGeoArb8.cxx.

◆ DistFromOutside()

Double_t TGeoGtra::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 inside point to surface of the shape.

Reimplemented from TGeoTrap.

Definition at line 1974 of file TGeoArb8.cxx.

◆ DistFromOutside_v()

void TGeoGtra::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 TGeoTrap.

Definition at line 2119 of file TGeoArb8.cxx.

◆ GetMakeRuntimeShape()

TGeoShape * TGeoGtra::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 TGeoTrap.

Definition at line 1990 of file TGeoArb8.cxx.

◆ GetTwistAngle()

Double_t TGeoGtra::GetTwistAngle ( ) const
inline

Definition at line 168 of file TGeoArb8.h.

◆ Safety()

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

Computes the closest distance from given point to this shape.

Reimplemented from TGeoTrap.

Definition at line 2030 of file TGeoArb8.cxx.

◆ Safety_v()

void TGeoGtra::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 TGeoTrap.

Definition at line 2129 of file TGeoArb8.cxx.

◆ SavePrimitive()

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

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

Reimplemented from TGeoTrap.

Definition at line 2038 of file TGeoArb8.cxx.

◆ SetDimensions()

void TGeoGtra::SetDimensions ( Double_t param)
virtual

Set all arb8 params in one step.

  • param[0] = dz
  • param[1] = theta
  • param[2] = phi
  • param[3] = h1
  • param[4] = bl1
  • param[5] = tl1
  • param[6] = alpha1
  • param[7] = h2
  • param[8] = bl2
  • param[9] = tl2
  • param[10] = alpha2
  • param[11] = twist

Reimplemented from TGeoTrap.

Definition at line 2073 of file TGeoArb8.cxx.

Member Data Documentation

◆ fTwistAngle

Double_t TGeoGtra::fTwistAngle
protected

Definition at line 149 of file TGeoArb8.h.

Libraries for TGeoGtra:
[legend]

The documentation for this class was generated from the following files:
c
#define c(i)
Definition: RSha256.hxx:101
TGeoManager::MakeBox
TGeoVolume * MakeBox(const char *name, TGeoMedium *medium, Double_t dx, Double_t dy, Double_t dz)
Make in one step a volume pointing to a box shape with given medium.
Definition: TGeoManager.cxx:2918
gGeoManager
R__EXTERN TGeoManager * gGeoManager
Definition: TGeoManager.h:602
TGeoManager::CloseGeometry
void CloseGeometry(Option_t *option="d")
Closing geometry implies checking the geometry validity, fixing shapes with negative parameters (run-...
Definition: TGeoManager.cxx:1359
TGeoVolume::SetLineWidth
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
Definition: TGeoVolume.cxx:2052
TGeoVolume::AddNode
virtual void AddNode(TGeoVolume *vol, Int_t copy_no, TGeoMatrix *mat=0, Option_t *option="")
Add a TGeoNode to the list of nodes.
Definition: TGeoVolume.cxx:932
TGeoMaterial
Base class describing materials.
Definition: TGeoMaterial.h:36
TGeoManager::SetNsegments
void SetNsegments(Int_t nseg)
Set number of segments for approximating circles in drawing.
Definition: TGeoManager.cxx:3339
TGeoManager::SetTopVolume
void SetTopVolume(TGeoVolume *vol)
Set the top volume and corresponding node as starting point of the geometry.
Definition: TGeoManager.cxx:3397
TView
See TView3D.
Definition: TView.h:25
TGeoVolume::Draw
virtual void Draw(Option_t *option="")
draw top volume according to option
Definition: TGeoVolume.cxx:1146
TView::ShowAxis
virtual void ShowAxis()=0
TCanvas
The Canvas class.
Definition: TCanvas.h:23
TGeoManager::MakeGtra
TGeoVolume * MakeGtra(const char *name, TGeoMedium *medium, Double_t dz, Double_t theta, Double_t phi, Double_t twist, Double_t h1, Double_t bl1, Double_t tl1, Double_t alpha1, Double_t h2, Double_t bl2, Double_t tl2, Double_t alpha2)
Make in one step a volume pointing to a twisted trapezoid shape with given medium.
Definition: TGeoManager.cxx:3082
gPad
#define gPad
Definition: TVirtualPad.h:287
TGeoMedium
Media are used to store properties related to tracking and which are useful only when using geometry ...
Definition: TGeoMedium.h:24
TGeoManager
The manager class for any TGeo geometry.
Definition: TGeoManager.h:45
TGeoVolume
TGeoVolume, TGeoVolumeMulti, TGeoVolumeAssembly are the volume classes.
Definition: TGeoVolume.h:49