library: libGeom #include "TGeoTube.h"

# TGeoCtub

class description - source file - inheritance tree (.ps)

## class TGeoCtub : public TGeoTubeSeg

| Inheritance Chart:

`TObject`

<-

`TNamed`

<-

`TGeoShape`

<-

`TGeoBBox`

<-

`TGeoTube`

<-

`TGeoTubeSeg`

<-

`TGeoCtub`

        public:

                              TGeoCtub()
                              TGeoCtub(Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz)
                              TGeoCtub(const char* name, Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz)
                              TGeoCtub(Double_t* params)
                              TGeoCtub(const TGeoCtub&)
                      virtual ~TGeoCtub()
               static TClass* Class()
                 virtual void ComputeBBox()
                 virtual void ComputeNormal(Double_t* point, Double_t* dir, Double_t* norm)
               virtual Bool_t Contains(Double_t* point) const
             virtual Double_t DistToIn(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = TGeoShape::Big(), Double_t* safe = 0) const
             virtual Double_t DistToOut(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = TGeoShape::Big(), Double_t* safe = 0) const
          virtual TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
             virtual Double_t GetAxisRange(Int_t iaxis, Double_t& xlo, Double_t& xhi) const
                virtual Int_t GetByteCount() const
           virtual TGeoShape* GetMakeRuntimeShape(TGeoShape* mother, TGeoMatrix* mat) const
              const Double_t* GetNhigh() const
              const Double_t* GetNlow() const
                virtual Int_t GetNmeshVertices() const
                     Double_t GetZcoord(Double_t xc, Double_t yc, Double_t zc) const
                 virtual void InspectShape() const
              virtual TClass* IsA() const
                    TGeoCtub& operator=(const TGeoCtub&)
             virtual Double_t Safety(Double_t* point, Bool_t in = kTRUE) const
                         void SetCtubDimensions(Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz)
                 virtual void SetDimensions(Double_t* param)
                 virtual void SetPoints(Double_t* buff) const
                 virtual void SetPoints(Float_t* buff) const
                 virtual void ShowMembers(TMemberInspector& insp, char* parent)
                 virtual void Streamer(TBuffer& b)
                         void StreamerNVirtual(TBuffer& b)

### Data Members

        protected:

          Double_t fNlow[3]   normal to lower cut plane
          Double_t fNhigh[3]  normal to highet cut plane

## Class Description

     TGeoTube - cylindrical tube class. It takes 3 parameters :
                inner radius, outer radius and half-length dz.

    _____________________________________________________________________________

/* */

/* */

/* */

/* */

/* */

/* */

/* */

    _____________________________________________________________________________
     TGeoTubeSeg - a phi segment of a tube. Has 5 parameters :
                - the same 3 as a tube;
                - first phi limit (in degrees)
                - second phi limit

    _____________________________________________________________________________

/* */

/* */

/* */

/* */

    _____________________________________________________________________________
     TGeoCtub - a tube segment cut with 2 planes. Has 11 parameters :
                - the same 5 as a tube segment;
                - x, y, z components of the normal to the -dZ cut plane in
                  point (0, 0, -dZ);
                - x, y, z components of the normal to the +dZ cut plane in
                  point (0, 0, dZ);

    _____________________________________________________________________________

/* */

TGeoCtub()

     default ctor

TGeoCtub(Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz) :TGeoTubeSeg(rmin, rmax, dz, phi1, phi2)

     ctor

TGeoCtub(const char *name, Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz) :TGeoTubeSeg(name, rmin, rmax, dz, phi1, phi2)

     ctor

TGeoCtub(Double_t *params) :TGeoTubeSeg(0,0,0,0,0)

     ctor with parameters

~TGeoCtub()

     dtor

void ComputeBBox()

     compute minimum bounding box of the ctub

void ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm)

     Compute normal to closest surface from POINT.

Bool_t Contains(Double_t *point) const

     check if point is contained in the cut tube
     check the lower cut plane

Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const

     Get range of shape for a given axis.

Double_t GetZcoord(Double_t xc, Double_t yc, Double_t zc) const

     compute real Z coordinate of a point belonging to either lower or
     higher caps (z should be either +fDz or -fDz)

Double_t DistToIn(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const

     compute distance from outside point to surface of the cut tube

Double_t DistToOut(Double_t *point, Double_t *dir, Int_t iact, Double_t step, Double_t *safe) const

     compute distance from inside point to surface of the cut tube

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

TGeoShape* GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix * /*mat*/) const

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

void InspectShape() const

     print shape parameters

Double_t Safety(Double_t *point, Bool_t in) const

     computes the closest distance from given point to this shape, according
     to option. The matching point on the shape is stored in spoint.

void SetCtubDimensions(Double_t rmin, Double_t rmax, Double_t dz, Double_t phi1, Double_t phi2, Double_t lx, Double_t ly, Double_t lz, Double_t tx, Double_t ty, Double_t tz)

     set dimensions of a cut tube

void SetDimensions(Double_t *param)

void SetPoints(Double_t *buff) const

     create sphere mesh points

void SetPoints(Float_t *buff) const

     create sphere mesh points

Int_t GetNmeshVertices() const

     Return number of vertices of the mesh representation

### Inline Functions

                      Int_t GetByteCount() const
            const Double_t* GetNlow() const
            const Double_t* GetNhigh() const
                    TClass* Class()
                    TClass* IsA() const
                       void ShowMembers(TMemberInspector& insp, char* parent)
                       void Streamer(TBuffer& b)
                       void StreamerNVirtual(TBuffer& b)
                   TGeoCtub TGeoCtub(const TGeoCtub&)
                  TGeoCtub& operator=(const TGeoCtub&)

Author: Andrei Gheata 24/10/01
Last update: root/geom:$Name: $:$Id: TGeoTube.cxx,v 1.36 2004/06/25 11:59:56 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *