TGeoPcon

class TGeoPcon : public TGeoBBox

    protected:

                TGeoPcon(const TGeoPcon&)
      TGeoPcon& operator=(const TGeoPcon&)

    public:

                               TGeoPcon()
                               TGeoPcon(Double_t phi, Double_t dphi, Int_t nz)
                               TGeoPcon(const char* name, Double_t phi, Double_t dphi, Int_t nz)
                               TGeoPcon(Double_t* params)
                       virtual ~TGeoPcon()
              virtual Double_t Capacity() const
                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 void DefineSection(Int_t snum, Double_t z, Double_t rmin, Double_t rmax)
                 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
              virtual Double_t DistFromOutside(Double_t* point, Double_t* dir, Int_t iact = 1, Double_t step = TGeoShape::Big(), Double_t* safe = 0) const
                      Double_t DistToSegZ(Double_t* point, Double_t* dir, Int_t& iz, Double_t c1, Double_t s1, Double_t c2, Double_t s2, Double_t cfio, Double_t sfio, Double_t cdfi) const
           virtual TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step)
                     Double_t& Dphi()
           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 const TBuffer3D& GetBuffer3D(Int_t reqSections, Bool_t localFrame) const
                 virtual Int_t GetByteCount() const
                      Double_t GetDphi() const
            virtual TGeoShape* GetMakeRuntimeShape(TGeoShape*, TGeoMatrix*) const
                 virtual Int_t GetNmeshVertices() const
                 virtual Int_t GetNsegments() const
                         Int_t GetNz() const
                      Double_t GetPhi1() const
                     Double_t* GetRmax() const
                      Double_t GetRmax(Int_t ipl) const
                     Double_t* GetRmin() const
                      Double_t GetRmin(Int_t ipl) const
                     Double_t* GetZ() const
                      Double_t GetZ(Int_t ipl) const
                  virtual void InspectShape() const
               virtual TClass* IsA() const
                virtual Bool_t IsCylType() const
            virtual TBuffer3D* MakeBuffer3D() const
                     Double_t& Phi1()
                     Double_t& Rmax(Int_t ipl)
                     Double_t& Rmin(Int_t ipl)
              virtual Double_t Safety(Double_t* point, Bool_t in = kTRUE) const
                      Double_t SafetyToSegment(Double_t* point, Int_t ipl, Bool_t in = kTRUE, Double_t safmin = TGeoShape::Big()) const
                  virtual void SavePrimitive(ostream& out, Option_t* option = "")
                  virtual void SetDimensions(Double_t* param)
                  virtual void SetPoints(Double_t* points) const
                  virtual void SetPoints(Float_t* points) const
                  virtual void SetSegsAndPols(TBuffer3D& buff) const
                  virtual void ShowMembers(TMemberInspector& insp, char* parent)
                  virtual void Sizeof3D() const
                  virtual void Streamer(TBuffer& b)
                          void StreamerNVirtual(TBuffer& b)
                     Double_t& Z(Int_t ipl)

Data Members

    protected:

          Int_t fNz    number of z planes (at least two)
       Double_t fPhi1  lower phi limit 
       Double_t fDphi  phi range
      Double_t* fRmin  [fNz] pointer to array of inner radii 
      Double_t* fRmax  [fNz] pointer to array of outer radii 
      Double_t* fZ     [fNz] pointer to array of Z planes positions 

Class Description

_____________________________________________________________________________
 TGeoPcon - a polycone. It has at least 9 parameters :
            - the lower phi limit;
            - the range in phi;
            - the number of z planes (at least two) where the inner/outer
              radii are changing;
            - z coordinate, inner and outer radius for each z plane

_____________________________________________________________________________

 dummy ctor

 Default constructor

 Default constructor

 Default constructor in GEANT3 style
 param[0] = phi1
 param[1] = dphi
 param[2] = nz

 param[3] = z1
 param[4] = Rmin1
 param[5] = Rmax1
 ...

copy constructor

assignment operator

 destructor

 Computes capacity of the shape in [length^3]

 compute bounding box of the pcon

 Compute normal to closest surface from POINT.

 test if point is inside this shape
 check total z range

 compute closest distance from point px,py to each corner

 compute distance from inside point to surface of the polycone

 compute distance to a pcon Z slice. Segment iz must be valid

 compute distance from outside point to surface of the tube

 Defines z position of a section plane, rmin and rmax at this z. Sections
 should be defined in increasing or decreasing Z order and the last section
 HAS to be snum = fNz-1

 Returns number of segments on each mesh circle segment.

--- Divide this polycone 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. Z divisions can be
 performed if the divided range is in between two consecutive Z planes.
  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

 Returns Rmin for Z segment IPL.

 Returns Rmax for Z segment IPL.

 Returns Z for segment IPL.

 print shape parameters

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

 Fill TBuffer3D structure for segments and polygons.

 Compute safety from POINT to segment between planes ipl, ipl+1 within safmin.

 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

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

 Set polycone dimensions starting from an array.

 create polycone mesh points

 create polycone mesh points

 Return number of vertices of the mesh representation

/// fill size of this 3-D object
/   TVirtualGeoPainter *painter = gGeoManager->GetGeomer();
/   if (!painter) return;
/    Int_t n;

/    n = gGeoManager->GetNsegments()+1;

/    Int_t numPoints = fNz*2*n;
/    Int_t numSegs   = 4*(fNz*n-1+(fDphi == 360));
/    Int_t numPolys  = 2*(fNz*n-1+(fDphi == 360));
/    painter->AddSize3D(numPoints, numSegs, numPolys);

 Fills a static 3D buffer and returns a reference.