TGeoTube

class TGeoTube : public TGeoBBox

    public:

                          TGeoTube()
                          TGeoTube(Double_t rmin, Double_t rmax, Double_t dz)
                          TGeoTube(const char* name, Double_t rmin, Double_t rmax, Double_t dz)
                          TGeoTube(Double_t* params)
                          TGeoTube(const TGeoTube&)
                  virtual ~TGeoTube()
           static TClass* Class()
             virtual void ComputeBBox()
             virtual void ComputeNormal(Double_t* point, Double_t* dir, Double_t* norm)
              static void ComputeNormalS(Double_t* point, Double_t* dir, Double_t* norm, Double_t rmin, Double_t rmax, Double_t dz)
           virtual Bool_t Contains(Double_t* point) const
            virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
         virtual Double_t DistFromInside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = TGeoShape::Big(), Double_t* safe = 0) const
          static Double_t DistFromInsideS(Double_t* point, Double_t* dir, Double_t rmin, Double_t rmax, Double_t dz)
         virtual Double_t DistFromOutside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = TGeoShape::Big(), Double_t* safe = 0) const
          static Double_t DistFromOutsideS(Double_t* point, Double_t* dir, Double_t rmin, Double_t rmax, Double_t dz)
              static void DistToTube(Double_t rsq, Double_t nsq, Double_t rdotn, Double_t radius, Double_t& b, Double_t& delta)
      virtual TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
      virtual const char* GetAxisName(Int_t iaxis) const
         virtual Double_t GetAxisRange(Int_t iaxis, Double_t& xlo, Double_t& xhi) const
             virtual void GetBoundingCylinder(Double_t* param) const
            virtual Int_t GetByteCount() const
         virtual Double_t GetDz() const
       virtual TGeoShape* GetMakeRuntimeShape(TGeoShape* mother, TGeoMatrix* mat) const
            virtual Int_t GetNmeshVertices() const
         virtual Double_t GetRmax() const
         virtual Double_t GetRmin() const
                   Bool_t HasRmin() const
             virtual void InspectShape() const
          virtual TClass* IsA() const
           virtual Bool_t IsCylType() const
       virtual TBuffer3D* MakeBuffer3D() const
                TGeoTube& operator=(const TGeoTube&)
             virtual void Paint(Option_t* option)
         virtual Double_t Safety(Double_t* point, Bool_t in = kTRUE) const
          static Double_t SafetyS(Double_t* point, Bool_t in, Double_t rmin, Double_t rmax, Double_t dz, Int_t skipz = 0)
             virtual void SetDimensions(Double_t* param)
             virtual void SetPoints(Double_t* buff) const
             virtual void SetPoints(Float_t* buff) const
             virtual void SetSegsAndPols(TBuffer3D* buff) const
                     void SetTubeDimensions(Double_t rmin, Double_t rmax, Double_t dz)
             virtual void ShowMembers(TMemberInspector& insp, char* parent)
             virtual void Sizeof3D() const
             virtual void Streamer(TBuffer& b)
                     void StreamerNVirtual(TBuffer& b)

Data Members

    protected:

      Double_t fRmin  inner radius
      Double_t fRmax  outer radius
      Double_t fDz    half length

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);

_____________________________________________________________________________

 Default constructor

 Default constructor specifying minimum and maximum radius

 Default constructor specifying minimum and maximum radius

 Default constructor specifying minimum and maximum radius
 param[0] = Rmin
 param[1] = Rmax
 param[2] = dz

 destructor

 compute bounding box of the tube

 Compute normal to closest surface from POINT.

 Compute normal to closest surface from POINT.

 test if point is inside this tube

 compute closest distance from point px,py to each corner

 compute distance from inside point to surface of the tube (static)

 compute distance from inside point to surface of the tube

 static method to compute distance from outside point to a tube with given parameters

 compute distance from outside point to surface of the tube and safe distance
 fist localize point w.r.t tube

 Static method computing the distance to a tube with given radius, starting from
 POINT along DIR director cosines. The distance is computed as :
    RSQ   = point[0]*point[0]+point[1]*point[1]
    NSQ   = dir[0]*dir[0]+dir[1]*dir[1]  ---> should NOT be 0 !!!
    RDOTN = point[0]*dir[0]+point[1]*dir[1]
 The distance can be computed as :
    D = -B +/- DELTA
 where DELTA.GT.0 and D.GT.0

--- Divide this tube shape belonging to volume "voldiv" into ndiv volumes
 called divname, from start position with the given step. Returns pointer
 to created division cell volume in case of Z divisions. For radial division
 creates all volumes with different shapes and returns pointer to volume that
 was divided. In case a wrong division axis is supplied, returns pointer to
 volume that was divided.

 Returns name of axis IAXIS.

 Get range of shape for a given axis.

--- Fill vector param[4] with the bounding cylinder parameters. The order
 is the following : Rmin, Rmax, Phi1, Phi2, dZ

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

 print shape parameters

 Creates a TBuffer3D describing *this* shape.
 Coordinates are in local reference frame.

 Paint this shape according to option

 Fill TBuffer3D structure for segments and polygons.

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

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

 create tube mesh points

 create tube mesh points

 Return number of vertices of the mesh representation

/// fill size of this 3-D object
/    TVirtualGeoPainter *painter = gGeoManager->GetGeomPainter();
/    if (!painter) return;
/    Int_t n = gGeoManager->GetNsegments();
/    Int_t numPoints = n*4;
/    Int_t numSegs   = n*8;
/    Int_t numPolys  = n*4;
/    painter->AddSize3D(numPoints, numSegs, numPolys);

Inline Functions

              Int_t GetByteCount() const
           Double_t GetRmin() const
           Double_t GetRmax() const
           Double_t GetDz() const
             Bool_t HasRmin() const
             Bool_t IsCylType() const
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
           TGeoTube TGeoTube(const TGeoTube&)
          TGeoTube& operator=(const TGeoTube&)