```// @(#)root/geom:\$Id: TGeoSphere.h 21425 2007-12-17 15:59:27Z brun \$
// Author: Andrei Gheata   31/01/02

/*************************************************************************
*                                                                       *
* For the licensing terms see \$ROOTSYS/LICENSE.                         *
* For the list of contributors see \$ROOTSYS/README/CREDITS.             *
*************************************************************************/

#ifndef ROOT_TGeoSphere
#define ROOT_TGeoSphere

#ifndef ROOT_TGeoBBox
#include "TGeoBBox.h"
#endif

////////////////////////////////////////////////////////////////////////////
//                                                                        //
// TGeoSphere - spherical shell class. It takes 6 parameters :            //
//           - inner and outer radius Rmin, Rmax                          //
//           - the theta limits Tmin, Tmax                                //
//           - the phi limits Pmin, Pmax (the sector in phi is considered //
//             starting from Pmin to Pmax counter-clockwise               //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

class TGeoSphere : public TGeoBBox
{
protected :
// data members
Int_t                 fNz;     // number of z planes for drawing
Int_t                 fNseg;   // number of segments for drawing
Double_t              fTheta1; // lower theta limit
Double_t              fTheta2; // higher theta limit
Double_t              fPhi1;   // lower phi limit
Double_t              fPhi2;   // higher phi limit
// methods

public:
// constructors
TGeoSphere();
TGeoSphere(Double_t rmin, Double_t rmax, Double_t theta1=0, Double_t theta2=180,
Double_t phi1=0, Double_t phi2=360);
TGeoSphere(const char *name, Double_t rmin, Double_t rmax, Double_t theta1=0, Double_t theta2=180,
Double_t phi1=0, Double_t phi2=360);
TGeoSphere(Double_t *param, Int_t nparam=6);
// destructor
virtual ~TGeoSphere();
// methods
virtual Double_t      Capacity() const;
virtual void          ComputeBBox();
virtual void          ComputeNormal(Double_t *point, Double_t *dir, Double_t *norm);
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;
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              DistToSphere(Double_t *point, Double_t *dir, Double_t rsph, Bool_t check=kTRUE, Bool_t firstcross=kTRUE) const;
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 const TBuffer3D &GetBuffer3D(Int_t reqSections, Bool_t localFrame) const;
virtual Int_t         GetByteCount() const {return 42;}
virtual TGeoShape    *GetMakeRuntimeShape(TGeoShape * /*mother*/, TGeoMatrix * /*mat*/) const {return 0;}
virtual void          GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const;
virtual Int_t         GetNmeshVertices() const;
Int_t                 GetNumberOfDivisions() const {return fNseg;}
Int_t                 GetNz() const   {return fNz;}
virtual Double_t      GetRmin() const {return fRmin;}
virtual Double_t      GetRmax() const {return fRmax;}
Double_t              GetTheta1() const {return fTheta1;}
Double_t              GetTheta2() const {return fTheta2;}
Double_t              GetPhi1() const {return fPhi1;}
Double_t              GetPhi2() const {return fPhi2;}
virtual void          InspectShape() const;
virtual Bool_t        IsCylType() const {return kFALSE;}
Int_t                 IsOnBoundary(Double_t *point) const;
Bool_t                IsPointInside(Double_t *point, Bool_t checkR=kTRUE, Bool_t checkTh=kTRUE, Bool_t checkPh=kTRUE) const;
virtual TBuffer3D    *MakeBuffer3D() const;
virtual Double_t      Safety(Double_t *point, Bool_t in=kTRUE) const;
virtual void          SavePrimitive(ostream &out, Option_t *option = "");
void                  SetSphDimensions(Double_t rmin, Double_t rmax, Double_t theta1,
Double_t theta2, Double_t phi1, Double_t phi2);
virtual void          SetNumberOfDivisions(Int_t p);
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          Sizeof3D() const;

ClassDef(TGeoSphere, 1)         // sphere class
};

#endif
```

Last update: Thu Jan 17 08:56:23 2008

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