TGeoTrap


class description - source file - inheritance tree

class TGeoTrap : public TGeoArb8


    public:
TGeoTrap TGeoTrap() TGeoTrap TGeoTrap(Double_t dz, Double_t theta, Double_t phi) TGeoTrap 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) TGeoTrap 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) TGeoTrap TGeoTrap(const TGeoTrap&) virtual void ~TGeoTrap() static TClass* Class() virtual TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) virtual TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Double_t step) Double_t GetAlpha1() const Double_t GetAlpha2() const Double_t GetBl1() const Double_t GetBl2() const Double_t GetH1() const Double_t GetH2() const virtual TGeoShape* GetMakeRuntimeShape(TGeoShape* mother) const Double_t GetPhi() const Double_t GetTheta() const Double_t GetTl1() const Double_t GetTl2() const virtual TClass* IsA() const virtual void ShowMembers(TMemberInspector& insp, char* parent) virtual void Streamer(TBuffer& b) void StreamerNVirtual(TBuffer& b)

Data Members


    protected:
Double_t fTheta theta angle Double_t fPhi phi angle Double_t fH1 half length in y at low z Double_t fBl1 half length in x at low z and y low edge Double_t fTl1 half length in x at low z and y high edge Double_t fAlpha1 angle between centers of x edges an y axis at low z Double_t fH2 half length in y at high z Double_t fBl2 half length in x at high z and y low edge Double_t fTl2 half length in x at high z and y high edge Double_t fAlpha2 angle between centers of x edges an y axis at low z


See also

TGeoGtra

Class Description

                                                                        
 TGeoTrap                                                               
                                                                        
 TRAP is a general trapezoid, i.e. one for which the faces perpendicular
 to z are trapezia and their centres are not the same x, y. It has 11   
 parameters: the half length in z, the polar angles from the centre of  
 the face at low z to that at high z, 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.                      
                                                                        


/*

*/


TGeoTrap()
 dummy ctor

TGeoTrap(Double_t dz, Double_t theta, Double_t phi)

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)
 constructor.

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

~TGeoTrap()
 destructor

TGeoVolume* Divide(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. Only Z divisions
 are supported. For Z divisions just return the pointer to the volume to be
 divided. In case a wrong division axis is supplied, returns pointer to
 volume that was divided.

TGeoVolume* Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Double_t step)
 Divide all range of iaxis in range/step cells

TGeoShape* GetMakeRuntimeShape(TGeoShape *mother) const
 in case shape has some negative parameters, these has to be computed
 in order to fit the mother



Inline Functions


           Double_t GetTheta() const
           Double_t GetPhi() const
           Double_t GetH1() const
           Double_t GetBl1() const
           Double_t GetTl1() const
           Double_t GetAlpha1() const
           Double_t GetH2() const
           Double_t GetBl2() const
           Double_t GetTl2() const
           Double_t GetAlpha2() const
            TClass* Class()
            TClass* IsA() const
               void ShowMembers(TMemberInspector& insp, char* parent)
               void Streamer(TBuffer& b)
               void StreamerNVirtual(TBuffer& b)
           TGeoTrap TGeoTrap(const TGeoTrap&)


Author: Andrei Gheata 31/01/02
Last update: root/geom:$Name: $:$Id: TGeoArb8.cxx,v 1.8 2002/09/27 16:16:06 brun Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *


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