source: trunk/source/geometry/solids/CSG/include/G4Trd.hh@ 987

Last change on this file since 987 was 850, checked in by garnier, 17 years ago

geant4.8.2 beta

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1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
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10// * *
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14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
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24// ********************************************************************
25//
26//
27// $Id: G4Trd.hh,v 1.16 2006/10/19 15:33:37 gcosmo Exp $
28// GEANT4 tag $Name: HEAD $
29//
30//
31// --------------------------------------------------------------------
32// GEANT 4 class header file
33//
34//
35// G4Trd
36//
37// Class description:
38//
39// A G4Trd is a trapezoid with the x and y dimensions varying along z
40// functions:
41//
42// Member Data:
43//
44// fDx1 Half-length along x at the surface positioned at -dz
45// fDx2 Half-length along x at the surface positioned at +dz
46// fDy1 Half-length along y at the surface positioned at -dz
47// fDy2 Half-length along y at the surface positioned at +dz
48// fDz Half-length along z axis
49
50// History:
51// 12.01.95 P.Kent: Old prototype code converted to thick geometry
52// 17.02.95 P.Kent: Exiting normal return
53// 19.08.96 P.Kent, V.Grichine: Fs in accordance with G4Box
54// 21.04.97 J.Apostolakis: Added Set Methods
55// 19.11.99 V.Grichine: kUndefined was added to Eside enum
56// --------------------------------------------------------------------
57
58#ifndef G4TRD_HH
59#define G4TRD_HH
60
61#include "G4CSGSolid.hh"
62
63class G4Trd : public G4CSGSolid
64{
65 public: // with description
66
67 G4Trd( const G4String& pName,
68 G4double pdx1, G4double pdx2,
69 G4double pdy1, G4double pdy2,
70 G4double pdz );
71 //
72 // Constructs a trapezoid with name, and half lengths
73
74 virtual ~G4Trd();
75 //
76 // Destructor
77
78 // Accessors
79
80 inline G4double GetXHalfLength1() const;
81 inline G4double GetXHalfLength2() const;
82 inline G4double GetYHalfLength1() const;
83 inline G4double GetYHalfLength2() const;
84 inline G4double GetZHalfLength() const;
85
86 // Modifiers
87
88 inline void SetXHalfLength1(G4double val);
89 inline void SetXHalfLength2(G4double val);
90 inline void SetYHalfLength1(G4double val);
91 inline void SetYHalfLength2(G4double val);
92 inline void SetZHalfLength(G4double val);
93
94 // Methods of solid
95
96 inline G4double GetCubicVolume();
97 inline G4double GetSurfaceArea();
98
99 void ComputeDimensions( G4VPVParameterisation* p,
100 const G4int n,
101 const G4VPhysicalVolume* pRep );
102
103 G4bool CalculateExtent( const EAxis pAxis,
104 const G4VoxelLimits& pVoxelLimit,
105 const G4AffineTransform& pTransform,
106 G4double& pMin, G4double& pMax ) const;
107
108 EInside Inside( const G4ThreeVector& p ) const;
109
110 G4ThreeVector SurfaceNormal( const G4ThreeVector& p ) const;
111
112 G4double DistanceToIn( const G4ThreeVector& p,
113 const G4ThreeVector& v ) const;
114
115 G4double DistanceToIn( const G4ThreeVector& p ) const;
116
117 G4double DistanceToOut( const G4ThreeVector& p,
118 const G4ThreeVector& v,
119 const G4bool calcNorm=false,
120 G4bool *validNorm=0,
121 G4ThreeVector *n=0 ) const;
122
123 G4double DistanceToOut( const G4ThreeVector& p ) const;
124
125 void CheckAndSetAllParameters ( G4double pdx1, G4double pdx2,
126 G4double pdy1, G4double pdy2,
127 G4double pdz );
128
129 void SetAllParameters ( G4double pdx1, G4double pdx2,
130 G4double pdy1, G4double pdy2,
131 G4double pdz );
132
133 G4GeometryType GetEntityType() const;
134
135 G4ThreeVector GetPointOnSurface() const;
136
137 std::ostream& StreamInfo( std::ostream& os ) const;
138
139 // Visualisation functions
140
141 void DescribeYourselfTo (G4VGraphicsScene& scene) const;
142 G4Polyhedron* CreatePolyhedron () const;
143 G4NURBS* CreateNURBS () const;
144
145 public: // without description
146
147 G4Trd(__void__&);
148 // Fake default constructor for usage restricted to direct object
149 // persistency for clients requiring preallocation of memory for
150 // persistifiable objects.
151
152 protected: // without description
153
154 G4ThreeVectorList*
155 CreateRotatedVertices( const G4AffineTransform& pTransform ) const;
156 //
157 // Creates the List of transformed vertices in the format required
158 // for G4CSGSolid:: ClipCrossSection and ClipBetweenSections
159
160 G4double fDx1,fDx2,fDy1,fDy2,fDz;
161
162 // Codes for faces (kPX=plus x face,kMY= minus y face etc)
163
164 enum ESide {kUndefined, kPX,kMX,kPY,kMY,kPZ,kMZ};
165
166 private:
167
168 G4ThreeVector ApproxSurfaceNormal( const G4ThreeVector& p ) const;
169 // Algorithm for SurfaceNormal() following the original
170 // specification for points not on the surface
171};
172
173#include "G4Trd.icc"
174
175#endif
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