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TGeoParaboloid.h
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1// @(#)root/geom:$Id$
2// Author: Mihaela Gheata 20/06/04
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_TGeoParaboloid
13#define ROOT_TGeoParaboloid
14
15#include "TGeoBBox.h"
16
17class TGeoParaboloid : public TGeoBBox {
18private:
19 Double_t fRlo; // radius at z=-dz
20 Double_t fRhi; // radius at z=+dz
21 Double_t fDz; // range on Z axis [-dz, dz]
22 Double_t fA; // quadratic coeff.
23 Double_t fB; // Z value of parabola at x=y=0
24
25 TGeoParaboloid(const TGeoParaboloid &) = delete;
27
28public:
29 // constructors
32 TGeoParaboloid(const char *name, Double_t rlo, Double_t rhi, Double_t dz);
33 TGeoParaboloid(Double_t *params);
34 // destructor
35 ~TGeoParaboloid() override;
36 // methods
37 Double_t Capacity() const override;
38 void ComputeBBox() override;
39 void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm) override;
40 void ComputeNormal_v(const Double_t *points, const Double_t *dirs, Double_t *norms, Int_t vecsize) override;
41 Bool_t Contains(const Double_t *point) const override;
42 void Contains_v(const Double_t *points, Bool_t *inside, Int_t vecsize) const override;
43 Int_t DistancetoPrimitive(Int_t px, Int_t py) override;
44 Double_t DistToParaboloid(const Double_t *point, const Double_t *dir, Bool_t in) const;
45 Double_t DistFromInside(const Double_t *point, const Double_t *dir, Int_t iact = 1, Double_t step = TGeoShape::Big(),
46 Double_t *safe = nullptr) const override;
47 void DistFromInside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
48 Double_t *step) const override;
49 Double_t DistFromOutside(const Double_t *point, const Double_t *dir, Int_t iact = 1,
50 Double_t step = TGeoShape::Big(), Double_t *safe = nullptr) const override;
51 void DistFromOutside_v(const Double_t *points, const Double_t *dirs, Double_t *dists, Int_t vecsize,
52 Double_t *step) const override;
54 Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) override;
55 const TBuffer3D &GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override;
56 Double_t GetRlo() const { return fRlo; }
57 Double_t GetRhi() const { return fRhi; }
58 Double_t GetDz() const { return fDz; }
59
60 void GetBoundingCylinder(Double_t *param) const override;
61 TGeoShape *GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const override;
62 void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const override;
63 Int_t GetNmeshVertices() const override;
64 Bool_t GetPointsOnSegments(Int_t /*npoints*/, Double_t * /*array*/) const override { return kFALSE; }
65 void InspectShape() const override;
66 Bool_t IsCylType() const override { return kTRUE; }
67 TBuffer3D *MakeBuffer3D() const override;
68 Double_t Safety(const Double_t *point, Bool_t in = kTRUE) const override;
69 void Safety_v(const Double_t *points, const Bool_t *inside, Double_t *safe, Int_t vecsize) const override;
70 void SavePrimitive(std::ostream &out, Option_t *option = "") override;
72 void SetDimensions(Double_t *param) override;
73 void SetPoints(Double_t *points) const override;
74 void SetPoints(Float_t *points) const override;
75 void SetSegsAndPols(TBuffer3D &buff) const override;
76 void Sizeof3D() const override;
77
78 ClassDefOverride(TGeoParaboloid, 1) // paraboloid class
79};
80
81#endif
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 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
A paraboloid is defined by the revolution surface generated by a parabola and is bounded by two plane...
const TBuffer3D & GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override
Fills a static 3D buffer and returns a reference.
Double_t GetDz() const
Double_t Capacity() const override
Computes capacity of the shape in [length^3].
Double_t DistToParaboloid(const Double_t *point, const Double_t *dir, Bool_t in) const
Compute distance from a point to the parabola given by: z = a*rsq + b; rsq = x*x+y*y
void InspectShape() const override
print shape parameters
Double_t GetRhi() const
TGeoShape * GetMakeRuntimeShape(TGeoShape *mother, TGeoMatrix *mat) const override
in case shape has some negative parameters, these has to be computed in order to fit the mother
TBuffer3D * MakeBuffer3D() const override
Creates a TBuffer3D describing this shape.
void GetMeshNumbers(Int_t &nvert, Int_t &nsegs, Int_t &npols) const override
Returns numbers of vertices, segments and polygons composing the shape mesh.
Int_t GetNmeshVertices() const override
Returns number of vertices on the paraboloid mesh.
void Sizeof3D() const override
void SetPoints(Double_t *points) const override
Create paraboloid mesh points.
void GetBoundingCylinder(Double_t *param) const override
Fill vector param[4] with the bounding cylinder parameters.
void ComputeNormal(const Double_t *point, const Double_t *dir, Double_t *norm) override
Compute normal to closest surface from POINT.
void SetParaboloidDimensions(Double_t rlo, Double_t rhi, Double_t dz)
Set paraboloid dimensions.
Bool_t GetPointsOnSegments(Int_t, Double_t *) const override
Fills array with n random points located on the line segments of the shape mesh.
void SetSegsAndPols(TBuffer3D &buff) const override
Fill TBuffer3D structure for segments and polygons.
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 paraboloid and safe distance
Double_t GetRlo() const
Int_t DistancetoPrimitive(Int_t px, Int_t py) override
compute closest distance from point px,py to each vertex
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...
Bool_t IsCylType() const override
void SavePrimitive(std::ostream &out, Option_t *option="") override
Save a primitive as a C++ statement(s) on output stream "out".
~TGeoParaboloid() override
destructor
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...
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...
void ComputeBBox() override
compute bounding box of the tube
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 paraboloid
Bool_t Contains(const Double_t *point) const override
test if point is inside the elliptical tube
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 SetDimensions(Double_t *param) override
Set paraboloid dimensions starting from an array.
TGeoParaboloid()
Dummy constructor.
TGeoVolume * Divide(TGeoVolume *voldiv, const char *divname, Int_t iaxis, Int_t ndiv, Double_t start, Double_t step) override
Divide the paraboloid along one axis.
TGeoParaboloid & operator=(const TGeoParaboloid &)=delete
TGeoParaboloid(const TGeoParaboloid &)=delete
Double_t Safety(const Double_t *point, Bool_t in=kTRUE) const override
Computes the closest distance from given point to this shape.
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.
Base abstract class for all shapes.
Definition TGeoShape.h:25
static Double_t Big()
Definition TGeoShape.h:87
TGeoVolume, TGeoVolumeMulti, TGeoVolumeAssembly are the volume classes.
Definition TGeoVolume.h:43