| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 // Implementation for G4UEllipticalCone wrappe
27 //
28 // 13-08-2019 Gabriele Cosmo, CERN
29 // -------------------------------------------
30
31 #include "G4EllipticalCone.hh"
32 #include "G4UEllipticalCone.hh"
33
34 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G
35
36 #include "G4AffineTransform.hh"
37 #include "G4VPVParameterisation.hh"
38 #include "G4PhysicalConstants.hh"
39 #include "G4BoundingEnvelope.hh"
40 #include "G4Polyhedron.hh"
41
42 //////////////////////////////////////////////
43 //
44 // Constructor - check & set half widths
45
46
47 G4UEllipticalCone::G4UEllipticalCone(const G4S
48 G4d
49 G4d
50 G4d
51 G4d
52 : Base_t(pName, a, b, h, cut)
53 { }
54
55 //////////////////////////////////////////////
56 //
57 // Fake default constructor - sets only member
58 // for usage restri
59
60 G4UEllipticalCone::G4UEllipticalCone( __void__
61 : Base_t(a)
62 { }
63
64 //////////////////////////////////////////////
65 //
66 // Destructor
67
68 G4UEllipticalCone::~G4UEllipticalCone() = defa
69
70 //////////////////////////////////////////////
71 //
72 // Copy constructor
73
74 G4UEllipticalCone::G4UEllipticalCone(const G4U
75 : Base_t(rhs)
76 { }
77
78 //////////////////////////////////////////////
79 //
80 // Assignment operator
81
82 G4UEllipticalCone& G4UEllipticalCone::operator
83 {
84 // Check assignment to self
85 //
86 if (this == &rhs) { return *this; }
87
88 // Copy base class data
89 //
90 Base_t::operator=(rhs);
91
92 return *this;
93 }
94
95 //////////////////////////////////////////////
96 //
97 // Accessors
98
99 G4double G4UEllipticalCone::GetSemiAxisX() con
100 {
101 return Base_t::GetSemiAxisX();
102 }
103
104 G4double G4UEllipticalCone::GetSemiAxisY() con
105 {
106 return Base_t::GetSemiAxisY();
107 }
108
109 G4double G4UEllipticalCone::GetZMax() const
110 {
111 return Base_t::GetZMax();
112 }
113
114 G4double G4UEllipticalCone::GetZTopCut() const
115 {
116 return Base_t::GetZTopCut();
117 }
118
119 G4double G4UEllipticalCone::GetSemiAxisMax ()
120 {
121 return std::max(GetSemiAxisX(),GetSemiAxisY(
122 }
123
124 G4double G4UEllipticalCone::GetSemiAxisMin ()
125 {
126 return std::min(GetSemiAxisX(),GetSemiAxisY(
127 }
128
129 //////////////////////////////////////////////
130 //
131 // Modifiers
132
133 void G4UEllipticalCone::SetSemiAxis(G4double x
134 {
135 Base_t::SetParameters(x, y, z, GetZTopCut())
136 }
137
138 void G4UEllipticalCone::SetZCut(G4double newzT
139 {
140 Base_t::SetParameters(GetSemiAxisX(), GetSem
141 }
142
143 //////////////////////////////////////////////
144 //
145 // Make a clone of the object
146
147 G4VSolid* G4UEllipticalCone::Clone() const
148 {
149 return new G4UEllipticalCone(*this);
150 }
151
152 //////////////////////////////////////////////
153 //
154 // Get bounding box
155
156 void G4UEllipticalCone::BoundingLimits(G4Three
157 G4Three
158 {
159 G4double zcut = GetZTopCut();
160 G4double height = GetZMax();
161 G4double xmax = GetSemiAxisX()*(height+zcu
162 G4double ymax = GetSemiAxisY()*(height+zcu
163 pMin.set(-xmax,-ymax,-zcut);
164 pMax.set( xmax, ymax, zcut);
165
166 // Check correctness of the bounding box
167 //
168 if (pMin.x() >= pMax.x() || pMin.y() >= pMax
169 {
170 std::ostringstream message;
171 message << "Bad bounding box (min >= max)
172 << GetName() << " !"
173 << "\npMin = " << pMin
174 << "\npMax = " << pMax;
175 G4Exception("G4UEllipticalCone::BoundingLi
176 JustWarning, message);
177 StreamInfo(G4cout);
178 }
179 }
180
181 //////////////////////////////////////////////
182 //
183 // Calculate extent under transform and specif
184
185 G4bool
186 G4UEllipticalCone::CalculateExtent(const EAxis
187 const G4Vox
188 const G4Aff
189 G4dou
190 {
191 G4ThreeVector bmin,bmax;
192 G4bool exist;
193
194 // Check bounding box (bbox)
195 //
196 BoundingLimits(bmin,bmax);
197 G4BoundingEnvelope bbox(bmin,bmax);
198 #ifdef G4BBOX_EXTENT
199 return bbox.CalculateExtent(pAxis,pVoxelLimi
200 #endif
201 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox
202 {
203 return exist = pMin < pMax;
204 }
205
206 // Set bounding envelope (benv) and calculat
207 //
208 static const G4int NSTEPS = 48; // number of
209 static const G4double ang = twopi/NSTEPS;
210 static const G4double sinHalf = std::sin(0.5
211 static const G4double cosHalf = std::cos(0.5
212 static const G4double sinStep = 2.*sinHalf*c
213 static const G4double cosStep = 1. - 2.*sinH
214 G4double zcut = bmax.z();
215 G4double height = GetZMax();
216 G4double sxmin = GetSemiAxisX()*(height-zcu
217 G4double symin = GetSemiAxisY()*(height-zcu
218 G4double sxmax = bmax.x()/cosHalf;
219 G4double symax = bmax.y()/cosHalf;
220
221 G4double sinCur = sinHalf;
222 G4double cosCur = cosHalf;
223 G4ThreeVectorList baseA(NSTEPS),baseB(NSTEPS
224 for (G4int k=0; k<NSTEPS; ++k)
225 {
226 baseA[k].set(sxmax*cosCur,symax*sinCur,-zc
227 baseB[k].set(sxmin*cosCur,symin*sinCur, zc
228
229 G4double sinTmp = sinCur;
230 sinCur = sinCur*cosStep + cosCur*sinStep;
231 cosCur = cosCur*cosStep - sinTmp*sinStep;
232 }
233
234 std::vector<const G4ThreeVectorList *> polyg
235 polygons[0] = &baseA;
236 polygons[1] = &baseB;
237 G4BoundingEnvelope benv(bmin,bmax,polygons);
238 exist = benv.CalculateExtent(pAxis,pVoxelLim
239 return exist;
240 }
241
242 //////////////////////////////////////////////
243 //
244 // CreatePolyhedron
245 //
246 G4Polyhedron* G4UEllipticalCone::CreatePolyhed
247 {
248 return new G4PolyhedronEllipticalCone(GetSem
249 GetZMa
250 }
251
252 #endif // G4GEOM_USE_USOLIDS
253