/usr/include/root/TGeoTorus.h is in libroot-geom-dev 5.34.14-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Andrei Gheata 28/07/03
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TGeoTorus
#define ROOT_TGeoTorus
#ifndef ROOT_TGeoBBox
#include "TGeoBBox.h"
#endif
////////////////////////////////////////////////////////////////////////////
// //
// TGeoTorus - Torus segment class. A torus has 5 parameters : //
// R - axial radius //
// Rmin - inner radius //
// Rmax - outer radius //
// Phi1 - starting phi //
// Dphi - phi extent //
// //
////////////////////////////////////////////////////////////////////////////
class TGeoTorus : public TGeoBBox
{
protected :
// data members
Double_t fR; // axial radius
Double_t fRmin; // inner radius
Double_t fRmax; // outer radius
Double_t fPhi1; // starting phi
Double_t fDphi; // phi extent
// methods
public:
virtual Double_t Capacity() const;
Double_t Daxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
Double_t DDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
Double_t DDDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
Double_t ToBoundary(const Double_t *pt, const Double_t *dir, Double_t r, Bool_t in) const;
Int_t SolveCubic(Double_t a, Double_t b, Double_t c, Double_t *x) const;
Int_t SolveQuartic(Double_t a, Double_t b, Double_t c, Double_t d, Double_t *x) const;
public:
// constructors
TGeoTorus();
TGeoTorus(Double_t r, Double_t rmin, Double_t rmax, Double_t phi1=0, Double_t dphi=360);
TGeoTorus(const char * name, Double_t r, Double_t rmin, Double_t rmax, Double_t phi1=0, Double_t dphi=360);
TGeoTorus(Double_t *params);
// destructor
virtual ~TGeoTorus() {}
// methods
virtual void ComputeBBox();
virtual void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm);
virtual void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize);
virtual Bool_t Contains(const Double_t *point) const;
virtual void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const;
virtual Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact=1,
Double_t step=TGeoShape::Big(), Double_t *safe=0) const;
virtual void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const;
virtual Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact=1,
Double_t step=TGeoShape::Big(), Double_t *safe=0) const;
virtual void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const;
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py);
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 56;}
virtual TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const;
virtual void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const;
virtual Int_t GetNmeshVertices() const;
virtual Bool_t GetPointsOnSegments(Int_t /*npoints*/, Double_t * /*array*/) const {return kFALSE;}
Double_t GetR() const {return fR;}
Double_t GetRmin() const {return fRmin;}
Double_t GetRmax() const {return fRmax;}
Double_t GetPhi1() const {return fPhi1;}
Double_t GetDphi() const {return fDphi;}
virtual void InspectShape() const;
virtual Bool_t IsCylType() const {return kTRUE;}
virtual TBuffer3D *MakeBuffer3D() const;
virtual Double_t Safety(const Double_t *point, Bool_t in=kTRUE) const;
virtual void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const;
virtual void SavePrimitive(std::ostream &out, Option_t *option = "");
void SetTorusDimensions(Double_t r, Double_t rmin, Double_t rmax, Double_t phi1, Double_t dphi);
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(TGeoTorus, 1) // torus class
};
#endif
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