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TGeoTorus.h
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1// @(#)root/base:$Id$
2// Author: Andrei Gheata 28/07/03
3
4/*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12#ifndef ROOT_TGeoTorus
13#define ROOT_TGeoTorus
14
15#include "TGeoBBox.h"
16
17class TGeoTorus : public TGeoBBox {
18protected:
19 // data members
20 Double_t fR; // axial radius
21 Double_t fRmin; // inner radius
22 Double_t fRmax; // outer radius
23 Double_t fPhi1; // starting phi
24 Double_t fDphi; // phi extent
25 // methods
26 TGeoTorus(const TGeoTorus &) = delete;
27 TGeoTorus &operator=(const TGeoTorus &) = delete;
28
29public:
30 Double_t Capacity() const override;
31 Double_t Daxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
32 Double_t DDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
33 Double_t DDDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const;
34 Double_t ToBoundary(const Double_t *pt, const Double_t *dir, Double_t r, Bool_t in) const;
37
38public:
39 // constructors
40 TGeoTorus();
41 TGeoTorus(Double_t r, Double_t rmin, Double_t rmax, Double_t phi1 = 0, Double_t dphi = 360);
42 TGeoTorus(const char *name, Double_t r, Double_t rmin, Double_t rmax, Double_t phi1 = 0, Double_t dphi = 360);
43 TGeoTorus(Double_t *params);
44 // destructor
45 ~TGeoTorus() override {}
46 // methods
47
48 void ComputeBBox() override;
49 void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm) override;
50 void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize) override;
51 Bool_t Contains(const Double_t *point) const override;
52 void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const override;
53 Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact = 1, Double_t step = TGeoShape::Big(),
54 Double_t *safe = nullptr) const override;
55 void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
56 Double_t *step) const override;
57 Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact = 1,
58 Double_t step = TGeoShape::Big(), Double_t *safe = nullptr) const override;
59 void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
60 Double_t *step) const override;
61 Int_t DistancetoPrimitive(Int_t px, Int_t py) override;
63 Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) override;
64 const char *GetAxisName(Int_t iaxis) const override;
65 Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const override;
66 void GetBoundingCylinder(Double_t *param) const override;
67 const TBuffer3D &GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override;
68 Int_t GetByteCount() const override { return 56; }
69 TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const override;
70 void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const override;
71 Int_t GetNmeshVertices() const override;
72 Bool_t GetPointsOnSegments(Int_t /*npoints*/, Double_t * /*array*/) const override { return kFALSE; }
73 Double_t GetR() const { return fR; }
74 Double_t GetRmin() const { return fRmin; }
75 Double_t GetRmax() const { return fRmax; }
76 Double_t GetPhi1() const { return fPhi1; }
77 Double_t GetDphi() const { return fDphi; }
78 void InspectShape() const override;
79 Bool_t IsCylType() const override { return kTRUE; }
80 TBuffer3D *MakeBuffer3D() const override;
81 Double_t Safety(const Double_t *point, Bool_t in = kTRUE) const override;
82 void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const override;
83 void SavePrimitive(std::ostream &out, Option_t *option = "") override;
84 void SetTorusDimensions(Double_t r, Double_t rmin, Double_t rmax, Double_t phi1, Double_t dphi);
85 void SetDimensions(Double_t *param) override;
86 void SetPoints(Double_t *points) const override;
87 void SetPoints(Float_t *points) const override;
88 void SetSegsAndPols(TBuffer3D &buff) const override;
89 void Sizeof3D() const override;
90
91 ClassDefOverride(TGeoTorus, 1) // torus class
92};
93
94#endif
#define d(i)
Definition RSha256.hxx:102
#define b(i)
Definition RSha256.hxx:100
#define c(i)
Definition RSha256.hxx:101
#define a(i)
Definition RSha256.hxx:99
bool Bool_t
Definition RtypesCore.h:63
int Int_t
Definition RtypesCore.h:45
float Float_t
Definition RtypesCore.h:57
constexpr Bool_t kFALSE
Definition RtypesCore.h:101
double Double_t
Definition RtypesCore.h:59
constexpr Bool_t kTRUE
Definition RtypesCore.h:100
const char Option_t
Definition RtypesCore.h:66
#define ClassDefOverride(name, id)
Definition Rtypes.h:341
Option_t Option_t option
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t r
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t points
char name[80]
Definition TGX11.cxx:110
Generic 3D primitive description class.
Definition TBuffer3D.h:18
Box class.
Definition TGeoBBox.h:17
Geometrical transformation package.
Definition TGeoMatrix.h:38
Base abstract class for all shapes.
Definition TGeoShape.h:25
static Double_t Big()
Definition TGeoShape.h:87
The torus is defined by its axial radius, its inner and outer radius.
Definition TGeoTorus.h:17
Double_t GetRmax() const
Definition TGeoTorus.h:75
Int_t SolveQuartic(Double_t a, Double_t b, Double_t c, Double_t d, Double_t *x) const
Find real solutions of the quartic equation : x^4 + a*x^3 + b*x^2 + c*x + d = 0 Input: a,...
void Sizeof3D() const override
fill size of this 3-D object
Double_t ToBoundary(const Double_t *pt, const Double_t *dir, Double_t r, Bool_t in) const
Returns distance to the surface or the torus (fR,r) from a point, along a direction.
Double_t GetAxisRange(Int_t iaxis, Double_t &xlo, Double_t &xhi) const override
Get range of shape for a given axis.
Double_t DDDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const
Second derivative of distance to torus axis w.r.t t.
Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=nullptr) const override
Compute distance from inside point to surface of the torus.
const char * GetAxisName(Int_t iaxis) const override
Returns name of axis IAXIS.
void SavePrimitive(std::ostream &out, Option_t *option="") override
Save a primitive as a C++ statement(s) on output stream "out".
~TGeoTorus() override
Definition TGeoTorus.h:45
void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const override
Compute distance from array of input points having directions specified by dirs. Store output in dist...
Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact=1, Double_t step=TGeoShape::Big(), Double_t *safe=nullptr) const override
Compute distance from outside point to surface of the torus.
Double_t Daxis(const Double_t *pt, const Double_t *dir, Double_t t) const
Computes distance to axis of the torus from point pt + t*dir;.
void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm) override
Compute normal to closest surface from POINT.
void SetTorusDimensions(Double_t r, Double_t rmin, Double_t rmax, Double_t phi1, Double_t dphi)
Set torus dimensions.
Int_t DistancetoPrimitive(Int_t px, Int_t py) override
Compute closest distance from point px,py to each vertex.
Double_t GetRmin() const
Definition TGeoTorus.h:74
TBuffer3D * MakeBuffer3D() const override
Creates a TBuffer3D describing this shape.
Double_t GetR() const
Definition TGeoTorus.h:73
void SetPoints(Double_t *points) const override
Create torus mesh points.
Int_t GetNmeshVertices() const override
Return number of vertices of the mesh representation.
Double_t fR
Definition TGeoTorus.h:20
void SetSegsAndPols(TBuffer3D &buff) const override
Fill TBuffer3D structure for segments and polygons.
void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const override
Compute safe distance from each of the points in the input array.
TGeoShape * GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const override
Create a shape fitting the mother.
void GetBoundingCylinder(Double_t *param) const override
Fill vector param[4] with the bounding cylinder parameters.
Double_t fRmax
Definition TGeoTorus.h:22
Double_t fDphi
Definition TGeoTorus.h:24
void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const override
Returns numbers of vertices, segments and polygons composing the shape mesh.
Double_t DDaxis(const Double_t *pt, const Double_t *dir, Double_t t) const
Computes derivative w.r.t. t of the distance to axis of the torus from point pt + t*dir;.
Bool_t IsCylType() const override
Definition TGeoTorus.h:79
Bool_t Contains(const Double_t *point) const override
Test if point is inside the torus.
void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const override
Check the inside status for each of the points in the array.
void InspectShape() const override
print shape parameters
Double_t GetPhi1() const
Definition TGeoTorus.h:76
Bool_t GetPointsOnSegments(Int_t, Double_t *) const override
Fills array with n random points located on the line segments of the shape mesh.
Definition TGeoTorus.h:72
Double_t fPhi1
Definition TGeoTorus.h:23
TGeoVolume * Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) override
Divide this torus shape belonging to volume "voldiv" into ndiv volumes called divname,...
TGeoTorus()
Default constructor.
Definition TGeoTorus.cxx:66
Int_t GetByteCount() const override
Definition TGeoTorus.h:68
const TBuffer3D & GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override
Fills a static 3D buffer and returns a reference.
void SetDimensions(Double_t *param) override
Set torus dimensions starting from a list.
void ComputeBBox() override
Compute bounding box of the torus.
void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize) override
Compute the normal for an array o points so that norm.dot.dir is positive Input: Arrays of point coor...
Int_t SolveCubic(Double_t a, Double_t b, Double_t c, Double_t *x) const
Find real solutions of the cubic equation : x^3 + a*x^2 + b*x + c = 0 Input: a,b,c Output: x[3] real ...
TGeoTorus & operator=(const TGeoTorus &)=delete
Double_t GetDphi() const
Definition TGeoTorus.h:77
void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize, Double_t *step) const override
Compute distance from array of input points having directions specified by dirs. Store output in dist...
Double_t fRmin
Definition TGeoTorus.h:21
TGeoTorus(const TGeoTorus &)=delete
Double_t Safety(const Double_t *point, Bool_t in=kTRUE) const override
computes the closest distance from given point to this shape, according to option.
Double_t Capacity() const override
Computes capacity of the shape in [length^3].
TGeoVolume, TGeoVolumeMulti, TGeoVolumeAssembly are the volume classes.
Definition TGeoVolume.h:43
TPaveText * pt
Double_t x[n]
Definition legend1.C:17