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25 // 25 //
26 // Implementation of G4EllipticalCone class 26 // Implementation of G4EllipticalCone class
27 // 27 //
28 // This code implements an Elliptical Cone giv 28 // This code implements an Elliptical Cone given explicitly by the
29 // equation: 29 // equation:
30 // x^2/a^2 + y^2/b^2 = (z-h)^2 30 // x^2/a^2 + y^2/b^2 = (z-h)^2
31 // and specified by the parameters (a,b,h) and 31 // and specified by the parameters (a,b,h) and a cut parallel to the
32 // xy plane above z = 0. 32 // xy plane above z = 0.
33 // 33 //
34 // Author: Dionysios Anninos 34 // Author: Dionysios Anninos
35 // Revised: Evgueni Tcherniaev 35 // Revised: Evgueni Tcherniaev
36 // ------------------------------------------- 36 // --------------------------------------------------------------------
37 37
38 #if !(defined(G4GEOM_USE_UELLIPTICALCONE) && d 38 #if !(defined(G4GEOM_USE_UELLIPTICALCONE) && defined(G4GEOM_USE_SYS_USOLIDS))
39 39
40 #include "globals.hh" 40 #include "globals.hh"
41 41
42 #include "G4EllipticalCone.hh" 42 #include "G4EllipticalCone.hh"
43 43
44 #include "G4RandomTools.hh" 44 #include "G4RandomTools.hh"
45 #include "G4GeomTools.hh" 45 #include "G4GeomTools.hh"
46 #include "G4ClippablePolygon.hh" 46 #include "G4ClippablePolygon.hh"
47 #include "G4VoxelLimits.hh" 47 #include "G4VoxelLimits.hh"
48 #include "G4AffineTransform.hh" 48 #include "G4AffineTransform.hh"
49 #include "G4BoundingEnvelope.hh" 49 #include "G4BoundingEnvelope.hh"
50 #include "G4GeometryTolerance.hh" 50 #include "G4GeometryTolerance.hh"
51 51
52 #include "meshdefs.hh" 52 #include "meshdefs.hh"
53 53
54 #include "Randomize.hh" 54 #include "Randomize.hh"
55 55
56 #include "G4VGraphicsScene.hh" 56 #include "G4VGraphicsScene.hh"
57 #include "G4VisExtent.hh" 57 #include "G4VisExtent.hh"
58 58
59 #include "G4AutoLock.hh" 59 #include "G4AutoLock.hh"
60 60
61 namespace 61 namespace
62 { 62 {
63 G4Mutex polyhedronMutex = G4MUTEX_INITIALIZE 63 G4Mutex polyhedronMutex = G4MUTEX_INITIALIZER;
64 } 64 }
65 65
66 using namespace CLHEP; 66 using namespace CLHEP;
67 67
68 ////////////////////////////////////////////// 68 /////////////////////////////////////////////////////////////////////////
69 // 69 //
70 // Constructor - check parameters 70 // Constructor - check parameters
71 71
72 G4EllipticalCone::G4EllipticalCone(const G4Str 72 G4EllipticalCone::G4EllipticalCone(const G4String& pName,
73 G4dou 73 G4double pxSemiAxis,
74 G4dou 74 G4double pySemiAxis,
75 G4dou 75 G4double pzMax,
76 G4dou 76 G4double pzTopCut)
77 : G4VSolid(pName), zTopCut(0.) 77 : G4VSolid(pName), zTopCut(0.)
78 { 78 {
79 halfCarTol = 0.5*kCarTolerance; 79 halfCarTol = 0.5*kCarTolerance;
80 80
81 // Check Semi-Axis & Z-cut 81 // Check Semi-Axis & Z-cut
82 // 82 //
83 if ( (pxSemiAxis <= 0.) || (pySemiAxis <= 0. 83 if ( (pxSemiAxis <= 0.) || (pySemiAxis <= 0.) || (pzMax <= 0.) )
84 { 84 {
85 std::ostringstream message; 85 std::ostringstream message;
86 message << "Invalid semi-axis or height f 86 message << "Invalid semi-axis or height for solid: " << GetName()
87 << "\n X semi-axis, Y semi-axis 87 << "\n X semi-axis, Y semi-axis, height = "
88 << pxSemiAxis << ", " << pySemiAx 88 << pxSemiAxis << ", " << pySemiAxis << ", " << pzMax;
89 G4Exception("G4EllipticalCone::G4Elliptic 89 G4Exception("G4EllipticalCone::G4EllipticalCone()", "GeomSolids0002",
90 FatalErrorInArgument, message 90 FatalErrorInArgument, message);
91 } 91 }
92 92
93 if ( pzTopCut <= 0 ) 93 if ( pzTopCut <= 0 )
94 { 94 {
95 std::ostringstream message; 95 std::ostringstream message;
96 message << "Invalid z-coordinate for cutt 96 message << "Invalid z-coordinate for cutting plane for solid: " << GetName()
97 << "\n Z top cut = " << pzTopCu 97 << "\n Z top cut = " << pzTopCut;
98 G4Exception("G4EllipticalCone::G4Elliptic 98 G4Exception("G4EllipticalCone::G4EllipticalCone()", "GeomSolids0002",
99 FatalErrorInArgument, message 99 FatalErrorInArgument, message);
100 } 100 }
101 101
102 SetSemiAxis( pxSemiAxis, pySemiAxis, pzMax ) 102 SetSemiAxis( pxSemiAxis, pySemiAxis, pzMax );
103 SetZCut(pzTopCut); 103 SetZCut(pzTopCut);
104 } 104 }
105 105
106 ////////////////////////////////////////////// 106 /////////////////////////////////////////////////////////////////////////
107 // 107 //
108 // Fake default constructor - sets only member 108 // Fake default constructor - sets only member data and allocates memory
109 // for usage restri 109 // for usage restricted to object persistency.
110 110
111 G4EllipticalCone::G4EllipticalCone( __void__& 111 G4EllipticalCone::G4EllipticalCone( __void__& a )
112 : G4VSolid(a), halfCarTol(0.), 112 : G4VSolid(a), halfCarTol(0.),
113 xSemiAxis(0.), ySemiAxis(0.), zheight(0.), 113 xSemiAxis(0.), ySemiAxis(0.), zheight(0.), zTopCut(0.),
114 cosAxisMin(0.), invXX(0.), invYY(0.) 114 cosAxisMin(0.), invXX(0.), invYY(0.)
115 { 115 {
116 } 116 }
117 117
118 ////////////////////////////////////////////// 118 /////////////////////////////////////////////////////////////////////////
119 // 119 //
120 // Destructor 120 // Destructor
121 121
122 G4EllipticalCone::~G4EllipticalCone() 122 G4EllipticalCone::~G4EllipticalCone()
123 { 123 {
124 delete fpPolyhedron; fpPolyhedron = nullptr; 124 delete fpPolyhedron; fpPolyhedron = nullptr;
125 } 125 }
126 126
127 ////////////////////////////////////////////// 127 /////////////////////////////////////////////////////////////////////////
128 // 128 //
129 // Copy constructor 129 // Copy constructor
130 130
131 G4EllipticalCone::G4EllipticalCone(const G4Ell 131 G4EllipticalCone::G4EllipticalCone(const G4EllipticalCone& rhs)
132 : G4VSolid(rhs), halfCarTol(rhs.halfCarTol), 132 : G4VSolid(rhs), halfCarTol(rhs.halfCarTol),
133 fCubicVolume(rhs.fCubicVolume), fSurfaceAr 133 fCubicVolume(rhs.fCubicVolume), fSurfaceArea(rhs.fSurfaceArea),
134 xSemiAxis(rhs.xSemiAxis), ySemiAxis(rhs.yS 134 xSemiAxis(rhs.xSemiAxis), ySemiAxis(rhs.ySemiAxis),
135 zheight(rhs.zheight), zTopCut(rhs.zTopCut) 135 zheight(rhs.zheight), zTopCut(rhs.zTopCut),
136 cosAxisMin(rhs.cosAxisMin), invXX(rhs.invX 136 cosAxisMin(rhs.cosAxisMin), invXX(rhs.invXX), invYY(rhs.invYY)
137 { 137 {
138 } 138 }
139 139
140 ////////////////////////////////////////////// 140 /////////////////////////////////////////////////////////////////////////
141 // 141 //
142 // Assignment operator 142 // Assignment operator
143 143
144 G4EllipticalCone& G4EllipticalCone::operator = 144 G4EllipticalCone& G4EllipticalCone::operator = (const G4EllipticalCone& rhs)
145 { 145 {
146 // Check assignment to self 146 // Check assignment to self
147 // 147 //
148 if (this == &rhs) { return *this; } 148 if (this == &rhs) { return *this; }
149 149
150 // Copy base class data 150 // Copy base class data
151 // 151 //
152 G4VSolid::operator=(rhs); 152 G4VSolid::operator=(rhs);
153 153
154 // Copy data 154 // Copy data
155 // 155 //
156 halfCarTol = rhs.halfCarTol; 156 halfCarTol = rhs.halfCarTol;
157 fCubicVolume = rhs.fCubicVolume; fSurfaceAr 157 fCubicVolume = rhs.fCubicVolume; fSurfaceArea = rhs.fSurfaceArea;
158 xSemiAxis = rhs.xSemiAxis; ySemiAxis = rhs. 158 xSemiAxis = rhs.xSemiAxis; ySemiAxis = rhs.ySemiAxis;
159 zheight = rhs.zheight; zTopCut = rhs.zTopCu 159 zheight = rhs.zheight; zTopCut = rhs.zTopCut;
160 cosAxisMin = rhs.cosAxisMin; invXX = rhs.in 160 cosAxisMin = rhs.cosAxisMin; invXX = rhs.invXX; invYY = rhs.invYY;
161 161
162 fRebuildPolyhedron = false; 162 fRebuildPolyhedron = false;
163 delete fpPolyhedron; fpPolyhedron = nullptr 163 delete fpPolyhedron; fpPolyhedron = nullptr;
164 164
165 return *this; 165 return *this;
166 } 166 }
167 167
168 ////////////////////////////////////////////// 168 /////////////////////////////////////////////////////////////////////////
169 // 169 //
170 // Get bounding box 170 // Get bounding box
171 171
172 void G4EllipticalCone::BoundingLimits(G4ThreeV 172 void G4EllipticalCone::BoundingLimits(G4ThreeVector& pMin,
173 G4ThreeV 173 G4ThreeVector& pMax) const
174 { 174 {
175 G4double zcut = GetZTopCut(); 175 G4double zcut = GetZTopCut();
176 G4double height = GetZMax(); 176 G4double height = GetZMax();
177 G4double xmax = GetSemiAxisX()*(height+zcu 177 G4double xmax = GetSemiAxisX()*(height+zcut);
178 G4double ymax = GetSemiAxisY()*(height+zcu 178 G4double ymax = GetSemiAxisY()*(height+zcut);
179 pMin.set(-xmax,-ymax,-zcut); 179 pMin.set(-xmax,-ymax,-zcut);
180 pMax.set( xmax, ymax, zcut); 180 pMax.set( xmax, ymax, zcut);
181 181
182 // Check correctness of the bounding box 182 // Check correctness of the bounding box
183 // 183 //
184 if (pMin.x() >= pMax.x() || pMin.y() >= pMax 184 if (pMin.x() >= pMax.x() || pMin.y() >= pMax.y() || pMin.z() >= pMax.z())
185 { 185 {
186 std::ostringstream message; 186 std::ostringstream message;
187 message << "Bad bounding box (min >= max) 187 message << "Bad bounding box (min >= max) for solid: "
188 << GetName() << " !" 188 << GetName() << " !"
189 << "\npMin = " << pMin 189 << "\npMin = " << pMin
190 << "\npMax = " << pMax; 190 << "\npMax = " << pMax;
191 G4Exception("G4EllipticalCone::BoundingLim 191 G4Exception("G4EllipticalCone::BoundingLimits()", "GeomMgt0001",
192 JustWarning, message); 192 JustWarning, message);
193 DumpInfo(); 193 DumpInfo();
194 } 194 }
195 } 195 }
196 196
197 ////////////////////////////////////////////// 197 /////////////////////////////////////////////////////////////////////////
198 // 198 //
199 // Calculate extent under transform and specif 199 // Calculate extent under transform and specified limit
200 200
201 G4bool 201 G4bool
202 G4EllipticalCone::CalculateExtent(const EAxis 202 G4EllipticalCone::CalculateExtent(const EAxis pAxis,
203 const G4Voxe 203 const G4VoxelLimits& pVoxelLimit,
204 const G4Affi 204 const G4AffineTransform& pTransform,
205 G4doub 205 G4double& pMin, G4double& pMax) const
206 { 206 {
207 G4ThreeVector bmin,bmax; 207 G4ThreeVector bmin,bmax;
208 G4bool exist; 208 G4bool exist;
209 209
210 // Check bounding box (bbox) 210 // Check bounding box (bbox)
211 // 211 //
212 BoundingLimits(bmin,bmax); 212 BoundingLimits(bmin,bmax);
213 G4BoundingEnvelope bbox(bmin,bmax); 213 G4BoundingEnvelope bbox(bmin,bmax);
214 #ifdef G4BBOX_EXTENT 214 #ifdef G4BBOX_EXTENT
215 return bbox.CalculateExtent(pAxis,pVoxelLimi 215 return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
216 #endif 216 #endif
217 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox 217 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVoxelLimit,pTransform,pMin,pMax))
218 { 218 {
219 return exist = pMin < pMax; << 219 return exist = (pMin < pMax) ? true : false;
220 } 220 }
221 221
222 // Set bounding envelope (benv) and calculat 222 // Set bounding envelope (benv) and calculate extent
223 // 223 //
224 static const G4int NSTEPS = 48; // number of 224 static const G4int NSTEPS = 48; // number of steps for whole circle
225 static const G4double ang = twopi/NSTEPS; 225 static const G4double ang = twopi/NSTEPS;
226 static const G4double sinHalf = std::sin(0.5 226 static const G4double sinHalf = std::sin(0.5*ang);
227 static const G4double cosHalf = std::cos(0.5 227 static const G4double cosHalf = std::cos(0.5*ang);
228 static const G4double sinStep = 2.*sinHalf*c 228 static const G4double sinStep = 2.*sinHalf*cosHalf;
229 static const G4double cosStep = 1. - 2.*sinH 229 static const G4double cosStep = 1. - 2.*sinHalf*sinHalf;
230 G4double zcut = bmax.z(); 230 G4double zcut = bmax.z();
231 G4double height = GetZMax(); 231 G4double height = GetZMax();
232 G4double sxmin = GetSemiAxisX()*(height-zcu 232 G4double sxmin = GetSemiAxisX()*(height-zcut)/cosHalf;
233 G4double symin = GetSemiAxisY()*(height-zcu 233 G4double symin = GetSemiAxisY()*(height-zcut)/cosHalf;
234 G4double sxmax = bmax.x()/cosHalf; 234 G4double sxmax = bmax.x()/cosHalf;
235 G4double symax = bmax.y()/cosHalf; 235 G4double symax = bmax.y()/cosHalf;
236 236
237 G4double sinCur = sinHalf; 237 G4double sinCur = sinHalf;
238 G4double cosCur = cosHalf; 238 G4double cosCur = cosHalf;
239 G4ThreeVectorList baseA(NSTEPS),baseB(NSTEPS 239 G4ThreeVectorList baseA(NSTEPS),baseB(NSTEPS);
240 for (G4int k=0; k<NSTEPS; ++k) 240 for (G4int k=0; k<NSTEPS; ++k)
241 { 241 {
242 baseA[k].set(sxmax*cosCur,symax*sinCur,-zc 242 baseA[k].set(sxmax*cosCur,symax*sinCur,-zcut);
243 baseB[k].set(sxmin*cosCur,symin*sinCur, zc 243 baseB[k].set(sxmin*cosCur,symin*sinCur, zcut);
244 244
245 G4double sinTmp = sinCur; 245 G4double sinTmp = sinCur;
246 sinCur = sinCur*cosStep + cosCur*sinStep; 246 sinCur = sinCur*cosStep + cosCur*sinStep;
247 cosCur = cosCur*cosStep - sinTmp*sinStep; 247 cosCur = cosCur*cosStep - sinTmp*sinStep;
248 } 248 }
249 249
250 std::vector<const G4ThreeVectorList *> polyg 250 std::vector<const G4ThreeVectorList *> polygons(2);
251 polygons[0] = &baseA; 251 polygons[0] = &baseA;
252 polygons[1] = &baseB; 252 polygons[1] = &baseB;
253 G4BoundingEnvelope benv(bmin,bmax,polygons); 253 G4BoundingEnvelope benv(bmin,bmax,polygons);
254 exist = benv.CalculateExtent(pAxis,pVoxelLim 254 exist = benv.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
255 return exist; 255 return exist;
256 } 256 }
257 257
258 ////////////////////////////////////////////// 258 /////////////////////////////////////////////////////////////////////////
259 // 259 //
260 // Determine where is point: inside, outside o 260 // Determine where is point: inside, outside or on surface
261 261
262 EInside G4EllipticalCone::Inside(const G4Three 262 EInside G4EllipticalCone::Inside(const G4ThreeVector& p) const
263 { 263 {
264 G4double hp = std::sqrt(p.x()*p.x()*invXX + 264 G4double hp = std::sqrt(p.x()*p.x()*invXX + p.y()*p.y()*invYY) + p.z();
265 G4double ds = (hp - zheight)*cosAxisMin; 265 G4double ds = (hp - zheight)*cosAxisMin;
266 G4double dz = std::abs(p.z()) - zTopCut; 266 G4double dz = std::abs(p.z()) - zTopCut;
267 G4double dist = std::max(ds,dz); 267 G4double dist = std::max(ds,dz);
268 268
269 if (dist > halfCarTol) return kOutside; 269 if (dist > halfCarTol) return kOutside;
270 return (dist > -halfCarTol) ? kSurface : kIn 270 return (dist > -halfCarTol) ? kSurface : kInside;
271 } 271 }
272 272
273 ////////////////////////////////////////////// 273 /////////////////////////////////////////////////////////////////////////
274 // 274 //
275 // Return unit normal at surface closest to p 275 // Return unit normal at surface closest to p
276 276
277 G4ThreeVector G4EllipticalCone::SurfaceNormal( 277 G4ThreeVector G4EllipticalCone::SurfaceNormal( const G4ThreeVector& p) const
278 { 278 {
279 G4ThreeVector norm(0,0,0); 279 G4ThreeVector norm(0,0,0);
280 G4int nsurf = 0; // number of surfaces wher 280 G4int nsurf = 0; // number of surfaces where p is placed
281 281
282 G4double hp = std::sqrt(p.x()*p.x()*invXX + 282 G4double hp = std::sqrt(p.x()*p.x()*invXX + p.y()*p.y()*invYY) + p.z();
283 G4double ds = (hp - zheight)*cosAxisMin; 283 G4double ds = (hp - zheight)*cosAxisMin;
284 if (std::abs(ds) <= halfCarTol) 284 if (std::abs(ds) <= halfCarTol)
285 { 285 {
286 norm = G4ThreeVector(p.x()*invXX, p.y()*in 286 norm = G4ThreeVector(p.x()*invXX, p.y()*invYY, hp - p.z());
287 G4double mag = norm.mag(); 287 G4double mag = norm.mag();
288 if (mag == 0) return {0,0,1}; // apex << 288 if (mag == 0) return G4ThreeVector(0,0,1); // apex
289 norm *= (1/mag); 289 norm *= (1/mag);
290 ++nsurf; 290 ++nsurf;
291 } 291 }
292 G4double dz = std::abs(p.z()) - zTopCut; 292 G4double dz = std::abs(p.z()) - zTopCut;
293 if (std::abs(dz) <= halfCarTol) 293 if (std::abs(dz) <= halfCarTol)
294 { 294 {
295 norm += G4ThreeVector(0., 0.,(p.z() < 0) ? 295 norm += G4ThreeVector(0., 0.,(p.z() < 0) ? -1. : 1.);
296 ++nsurf; 296 ++nsurf;
297 } 297 }
298 298
299 if (nsurf == 1) return norm; 299 if (nsurf == 1) return norm;
300 else if (nsurf > 1) return norm.unit(); // 300 else if (nsurf > 1) return norm.unit(); // elliptic edge
301 else 301 else
302 { 302 {
303 // Point is not on the surface 303 // Point is not on the surface
304 // 304 //
305 #ifdef G4CSGDEBUG 305 #ifdef G4CSGDEBUG
306 std::ostringstream message; 306 std::ostringstream message;
307 G4long oldprc = message.precision(16); 307 G4long oldprc = message.precision(16);
308 message << "Point p is not on surface (!?) 308 message << "Point p is not on surface (!?) of solid: "
309 << GetName() << G4endl; 309 << GetName() << G4endl;
310 message << "Position:\n"; 310 message << "Position:\n";
311 message << " p.x() = " << p.x()/mm << " 311 message << " p.x() = " << p.x()/mm << " mm\n";
312 message << " p.y() = " << p.y()/mm << " 312 message << " p.y() = " << p.y()/mm << " mm\n";
313 message << " p.z() = " << p.z()/mm << " 313 message << " p.z() = " << p.z()/mm << " mm";
314 G4cout.precision(oldprc); 314 G4cout.precision(oldprc);
315 G4Exception("G4EllipticalCone::SurfaceNorm 315 G4Exception("G4EllipticalCone::SurfaceNormal(p)", "GeomSolids1002",
316 JustWarning, message ); 316 JustWarning, message );
317 DumpInfo(); 317 DumpInfo();
318 #endif 318 #endif
319 return ApproxSurfaceNormal(p); 319 return ApproxSurfaceNormal(p);
320 } 320 }
321 } 321 }
322 322
323 ////////////////////////////////////////////// 323 /////////////////////////////////////////////////////////////////////////
324 // 324 //
325 // Find surface nearest to point and return co 325 // Find surface nearest to point and return corresponding normal.
326 // The algorithm is similar to the algorithm u 326 // The algorithm is similar to the algorithm used in Inside().
327 // This method normally should not be called. 327 // This method normally should not be called.
328 328
329 G4ThreeVector 329 G4ThreeVector
330 G4EllipticalCone::ApproxSurfaceNormal(const G4 330 G4EllipticalCone::ApproxSurfaceNormal(const G4ThreeVector& p) const
331 { 331 {
332 G4double hp = std::sqrt(p.x()*p.x()*invXX + 332 G4double hp = std::sqrt(p.x()*p.x()*invXX + p.y()*p.y()*invYY) + p.z();
333 G4double ds = (hp - zheight)*cosAxisMin; 333 G4double ds = (hp - zheight)*cosAxisMin;
334 G4double dz = std::abs(p.z()) - zTopCut; 334 G4double dz = std::abs(p.z()) - zTopCut;
335 if (ds > dz && std::abs(hp - p.z()) > halfCa 335 if (ds > dz && std::abs(hp - p.z()) > halfCarTol)
336 return G4ThreeVector(p.x()*invXX, p.y()*in 336 return G4ThreeVector(p.x()*invXX, p.y()*invYY, hp - p.z()).unit();
337 else 337 else
338 return { 0., 0., (G4double)((p.z() < 0) ? << 338 return G4ThreeVector(0., 0.,(p.z() < 0) ? -1. : 1.);
339 } 339 }
340 340
341 ////////////////////////////////////////////// 341 ////////////////////////////////////////////////////////////////////////
342 // 342 //
343 // Calculate distance to shape from outside, a 343 // Calculate distance to shape from outside, along normalised vector
344 // return kInfinity if no intersection, or int 344 // return kInfinity if no intersection, or intersection distance <= tolerance
345 345
346 G4double G4EllipticalCone::DistanceToIn( const 346 G4double G4EllipticalCone::DistanceToIn( const G4ThreeVector& p,
347 const 347 const G4ThreeVector& v ) const
348 { 348 {
349 G4double distMin = kInfinity; 349 G4double distMin = kInfinity;
350 350
351 // code from EllipticalTube 351 // code from EllipticalTube
352 352
353 G4double sigz = p.z()+zTopCut; 353 G4double sigz = p.z()+zTopCut;
354 354
355 // 355 //
356 // Check z = -dz planer surface 356 // Check z = -dz planer surface
357 // 357 //
358 358
359 if (sigz < halfCarTol) 359 if (sigz < halfCarTol)
360 { 360 {
361 // 361 //
362 // We are "behind" the shape in z, and so 362 // We are "behind" the shape in z, and so can
363 // potentially hit the rear face. Correct 363 // potentially hit the rear face. Correct direction?
364 // 364 //
365 if (v.z() <= 0) 365 if (v.z() <= 0)
366 { 366 {
367 // 367 //
368 // As long as we are far enough away, we 368 // As long as we are far enough away, we know we
369 // can't intersect 369 // can't intersect
370 // 370 //
371 if (sigz < 0) return kInfinity; 371 if (sigz < 0) return kInfinity;
372 372
373 // 373 //
374 // Otherwise, we don't intersect unless 374 // Otherwise, we don't intersect unless we are
375 // on the surface of the ellipse 375 // on the surface of the ellipse
376 // 376 //
377 377
378 if ( sqr(p.x()/( xSemiAxis - halfCarTol 378 if ( sqr(p.x()/( xSemiAxis - halfCarTol ))
379 + sqr(p.y()/( ySemiAxis - halfCarTol 379 + sqr(p.y()/( ySemiAxis - halfCarTol )) <= sqr( zheight + zTopCut ) )
380 return kInfinity; 380 return kInfinity;
381 381
382 } 382 }
383 else 383 else
384 { 384 {
385 // 385 //
386 // How far? 386 // How far?
387 // 387 //
388 G4double q = -sigz/v.z(); 388 G4double q = -sigz/v.z();
389 389
390 // 390 //
391 // Where does that place us? 391 // Where does that place us?
392 // 392 //
393 G4double xi = p.x() + q*v.x(), 393 G4double xi = p.x() + q*v.x(),
394 yi = p.y() + q*v.y(); 394 yi = p.y() + q*v.y();
395 395
396 // 396 //
397 // Is this on the surface (within ellips 397 // Is this on the surface (within ellipse)?
398 // 398 //
399 if ( sqr(xi/xSemiAxis) + sqr(yi/ySemiAxi 399 if ( sqr(xi/xSemiAxis) + sqr(yi/ySemiAxis) <= sqr( zheight + zTopCut ) )
400 { 400 {
401 // 401 //
402 // Yup. Return q, unless we are on the 402 // Yup. Return q, unless we are on the surface
403 // 403 //
404 return (sigz < -halfCarTol) ? q : 0; 404 return (sigz < -halfCarTol) ? q : 0;
405 } 405 }
406 else if (xi/(xSemiAxis*xSemiAxis)*v.x() 406 else if (xi/(xSemiAxis*xSemiAxis)*v.x()
407 + yi/(ySemiAxis*ySemiAxis)*v.y() 407 + yi/(ySemiAxis*ySemiAxis)*v.y() >= 0)
408 { 408 {
409 // 409 //
410 // Else, if we are traveling outwards, 410 // Else, if we are traveling outwards, we know
411 // we must miss 411 // we must miss
412 // 412 //
413 // return kInfinity; 413 // return kInfinity;
414 } 414 }
415 } 415 }
416 } 416 }
417 417
418 // 418 //
419 // Check z = +dz planer surface 419 // Check z = +dz planer surface
420 // 420 //
421 sigz = p.z() - zTopCut; 421 sigz = p.z() - zTopCut;
422 422
423 if (sigz > -halfCarTol) 423 if (sigz > -halfCarTol)
424 { 424 {
425 if (v.z() >= 0) 425 if (v.z() >= 0)
426 { 426 {
427 427
428 if (sigz > 0) return kInfinity; 428 if (sigz > 0) return kInfinity;
429 429
430 if ( sqr(p.x()/( xSemiAxis - halfCarTol 430 if ( sqr(p.x()/( xSemiAxis - halfCarTol ))
431 + sqr(p.y()/( ySemiAxis - halfCarTol 431 + sqr(p.y()/( ySemiAxis - halfCarTol )) <= sqr( zheight-zTopCut ) )
432 return kInfinity; 432 return kInfinity;
433 433
434 } 434 }
435 else { 435 else {
436 G4double q = -sigz/v.z(); 436 G4double q = -sigz/v.z();
437 437
438 G4double xi = p.x() + q*v.x(), 438 G4double xi = p.x() + q*v.x(),
439 yi = p.y() + q*v.y(); 439 yi = p.y() + q*v.y();
440 440
441 if ( sqr(xi/xSemiAxis) + sqr(yi/ySemiAxi 441 if ( sqr(xi/xSemiAxis) + sqr(yi/ySemiAxis) <= sqr( zheight - zTopCut ) )
442 { 442 {
443 return (sigz > -halfCarTol) ? q : 0; 443 return (sigz > -halfCarTol) ? q : 0;
444 } 444 }
445 else if (xi/(xSemiAxis*xSemiAxis)*v.x() 445 else if (xi/(xSemiAxis*xSemiAxis)*v.x()
446 + yi/(ySemiAxis*ySemiAxis)*v.y() 446 + yi/(ySemiAxis*ySemiAxis)*v.y() >= 0)
447 { 447 {
448 // return kInfinity; 448 // return kInfinity;
449 } 449 }
450 } 450 }
451 } 451 }
452 452
453 453
454 #if 0 454 #if 0
455 455
456 // check to see if Z plane is relevant 456 // check to see if Z plane is relevant
457 // 457 //
458 if (p.z() < -zTopCut - halfCarTol) 458 if (p.z() < -zTopCut - halfCarTol)
459 { 459 {
460 if (v.z() <= 0.0) 460 if (v.z() <= 0.0)
461 return distMin; 461 return distMin;
462 462
463 G4double lambda = (-zTopCut - p.z())/v.z() 463 G4double lambda = (-zTopCut - p.z())/v.z();
464 464
465 if ( sqr((lambda*v.x()+p.x())/xSemiAxis) + 465 if ( sqr((lambda*v.x()+p.x())/xSemiAxis) +
466 sqr((lambda*v.y()+p.y())/ySemiAxis) < 466 sqr((lambda*v.y()+p.y())/ySemiAxis) <=
467 sqr(zTopCut + zheight + halfCarTol) ) 467 sqr(zTopCut + zheight + halfCarTol) )
468 { 468 {
469 return distMin = std::fabs(lambda); 469 return distMin = std::fabs(lambda);
470 } 470 }
471 } 471 }
472 472
473 if (p.z() > zTopCut + halfCarTol) 473 if (p.z() > zTopCut + halfCarTol)
474 { 474 {
475 if (v.z() >= 0.0) 475 if (v.z() >= 0.0)
476 { return distMin; } 476 { return distMin; }
477 477
478 G4double lambda = (zTopCut - p.z()) / v.z 478 G4double lambda = (zTopCut - p.z()) / v.z();
479 479
480 if ( sqr((lambda*v.x() + p.x())/xSemiAxis) 480 if ( sqr((lambda*v.x() + p.x())/xSemiAxis) +
481 sqr((lambda*v.y() + p.y())/ySemiAxis) 481 sqr((lambda*v.y() + p.y())/ySemiAxis) <=
482 sqr(zheight - zTopCut + halfCarTol) ) 482 sqr(zheight - zTopCut + halfCarTol) )
483 { 483 {
484 return distMin = std::fabs(lambda); 484 return distMin = std::fabs(lambda);
485 } 485 }
486 } 486 }
487 487
488 if (p.z() > zTopCut - halfCarTol 488 if (p.z() > zTopCut - halfCarTol
489 && p.z() < zTopCut + halfCarTol ) 489 && p.z() < zTopCut + halfCarTol )
490 { 490 {
491 if (v.z() > 0.) 491 if (v.z() > 0.)
492 { return kInfinity; } 492 { return kInfinity; }
493 493
494 return distMin = 0.; 494 return distMin = 0.;
495 } 495 }
496 496
497 if (p.z() < -zTopCut + halfCarTol 497 if (p.z() < -zTopCut + halfCarTol
498 && p.z() > -zTopCut - halfCarTol) 498 && p.z() > -zTopCut - halfCarTol)
499 { 499 {
500 if (v.z() < 0.) 500 if (v.z() < 0.)
501 { return distMin = kInfinity; } 501 { return distMin = kInfinity; }
502 502
503 return distMin = 0.; 503 return distMin = 0.;
504 } 504 }
505 505
506 #endif 506 #endif
507 507
508 // if we are here then it either intersects 508 // if we are here then it either intersects or grazes the curved surface
509 // or it does not intersect at all 509 // or it does not intersect at all
510 // 510 //
511 G4double A = sqr(v.x()/xSemiAxis) + sqr(v.y( 511 G4double A = sqr(v.x()/xSemiAxis) + sqr(v.y()/ySemiAxis) - sqr(v.z());
512 G4double B = 2*(v.x()*p.x()/sqr(xSemiAxis) + 512 G4double B = 2*(v.x()*p.x()/sqr(xSemiAxis) +
513 v.y()*p.y()/sqr(ySemiAxis) + 513 v.y()*p.y()/sqr(ySemiAxis) + v.z()*(zheight-p.z()));
514 G4double C = sqr(p.x()/xSemiAxis) + sqr(p.y( 514 G4double C = sqr(p.x()/xSemiAxis) + sqr(p.y()/ySemiAxis) -
515 sqr(zheight - p.z()); 515 sqr(zheight - p.z());
516 516
517 G4double discr = B*B - 4.*A*C; 517 G4double discr = B*B - 4.*A*C;
518 518
519 // if the discriminant is negative it never 519 // if the discriminant is negative it never hits the curved object
520 // 520 //
521 if ( discr < -halfCarTol ) 521 if ( discr < -halfCarTol )
522 { return distMin; } 522 { return distMin; }
523 523
524 // case below is when it hits or grazes the 524 // case below is when it hits or grazes the surface
525 // 525 //
526 if ( (discr >= -halfCarTol ) && (discr < hal 526 if ( (discr >= -halfCarTol ) && (discr < halfCarTol ) )
527 { 527 {
528 return distMin = std::fabs(-B/(2.*A)); 528 return distMin = std::fabs(-B/(2.*A));
529 } 529 }
530 530
531 G4double plus = (-B+std::sqrt(discr))/(2.*A 531 G4double plus = (-B+std::sqrt(discr))/(2.*A);
532 G4double minus = (-B-std::sqrt(discr))/(2.*A 532 G4double minus = (-B-std::sqrt(discr))/(2.*A);
533 533
534 // Special case::Point on Surface, Check nor 534 // Special case::Point on Surface, Check norm.dot(v)
535 535
536 if ( ( std::fabs(plus) < halfCarTol )||( std 536 if ( ( std::fabs(plus) < halfCarTol )||( std::fabs(minus) < halfCarTol ) )
537 { 537 {
538 G4ThreeVector truenorm(p.x()/(xSemiAxis*xS 538 G4ThreeVector truenorm(p.x()/(xSemiAxis*xSemiAxis),
539 p.y()/(ySemiAxis*yS 539 p.y()/(ySemiAxis*ySemiAxis),
540 -( p.z() - zheight 540 -( p.z() - zheight ));
541 if ( truenorm*v >= 0) // going outside t 541 if ( truenorm*v >= 0) // going outside the solid from surface
542 { 542 {
543 return kInfinity; 543 return kInfinity;
544 } 544 }
545 else 545 else
546 { 546 {
547 return 0; 547 return 0;
548 } 548 }
549 } 549 }
550 550
551 // G4double lambda = std::fabs(plus) < std:: 551 // G4double lambda = std::fabs(plus) < std::fabs(minus) ? plus : minus;
552 G4double lambda = 0; 552 G4double lambda = 0;
553 553
554 if ( minus > halfCarTol && minus < distMin ) 554 if ( minus > halfCarTol && minus < distMin )
555 { 555 {
556 lambda = minus ; 556 lambda = minus ;
557 // check normal vector n * v < 0 557 // check normal vector n * v < 0
558 G4ThreeVector pin = p + lambda*v; 558 G4ThreeVector pin = p + lambda*v;
559 if(std::fabs(pin.z())< zTopCut + halfCarTo 559 if(std::fabs(pin.z())< zTopCut + halfCarTol)
560 { 560 {
561 G4ThreeVector truenorm(pin.x()/(xSemiAxi 561 G4ThreeVector truenorm(pin.x()/(xSemiAxis*xSemiAxis),
562 pin.y()/(ySemiAxi 562 pin.y()/(ySemiAxis*ySemiAxis),
563 - ( pin.z() - zhe 563 - ( pin.z() - zheight ));
564 if ( truenorm*v < 0) 564 if ( truenorm*v < 0)
565 { // yes, going inside the solid 565 { // yes, going inside the solid
566 distMin = lambda; 566 distMin = lambda;
567 } 567 }
568 } 568 }
569 } 569 }
570 if ( plus > halfCarTol && plus < distMin ) 570 if ( plus > halfCarTol && plus < distMin )
571 { 571 {
572 lambda = plus ; 572 lambda = plus ;
573 // check normal vector n * v < 0 573 // check normal vector n * v < 0
574 G4ThreeVector pin = p + lambda*v; 574 G4ThreeVector pin = p + lambda*v;
575 if(std::fabs(pin.z()) < zTopCut + halfCarT 575 if(std::fabs(pin.z()) < zTopCut + halfCarTol)
576 { 576 {
577 G4ThreeVector truenorm(pin.x()/(xSemiAxi 577 G4ThreeVector truenorm(pin.x()/(xSemiAxis*xSemiAxis),
578 pin.y()/(ySemiAxi 578 pin.y()/(ySemiAxis*ySemiAxis),
579 - ( pin.z() - zhe 579 - ( pin.z() - zheight ) );
580 if ( truenorm*v < 0) 580 if ( truenorm*v < 0)
581 { // yes, going inside the solid 581 { // yes, going inside the solid
582 distMin = lambda; 582 distMin = lambda;
583 } 583 }
584 } 584 }
585 } 585 }
586 if (distMin < halfCarTol) distMin=0.; 586 if (distMin < halfCarTol) distMin=0.;
587 return distMin ; 587 return distMin ;
588 } 588 }
589 589
590 ////////////////////////////////////////////// 590 /////////////////////////////////////////////////////////////////////////
591 // 591 //
592 // Calculate distance (<= actual) to closest s 592 // Calculate distance (<= actual) to closest surface of shape from outside
593 // Return 0 if point inside 593 // Return 0 if point inside
594 594
595 G4double G4EllipticalCone::DistanceToIn(const 595 G4double G4EllipticalCone::DistanceToIn(const G4ThreeVector& p) const
596 { 596 {
597 G4double hp = std::sqrt(p.x()*p.x()*invXX + 597 G4double hp = std::sqrt(p.x()*p.x()*invXX + p.y()*p.y()*invYY) + p.z();
598 G4double ds = (hp - zheight)*cosAxisMin; 598 G4double ds = (hp - zheight)*cosAxisMin;
599 G4double dz = std::abs(p.z()) - zTopCut; 599 G4double dz = std::abs(p.z()) - zTopCut;
600 G4double dist = std::max(ds,dz); 600 G4double dist = std::max(ds,dz);
601 return (dist > 0) ? dist : 0.; 601 return (dist > 0) ? dist : 0.;
602 } 602 }
603 603
604 ////////////////////////////////////////////// 604 ////////////////////////////////////////////////////////////////////////
605 // 605 //
606 // Calculate distance to surface of shape from 606 // Calculate distance to surface of shape from `inside',
607 // allowing for tolerance 607 // allowing for tolerance
608 608
609 G4double G4EllipticalCone::DistanceToOut(const 609 G4double G4EllipticalCone::DistanceToOut(const G4ThreeVector& p,
610 const 610 const G4ThreeVector& v,
611 const 611 const G4bool calcNorm,
612 612 G4bool* validNorm,
613 613 G4ThreeVector* n ) const
614 { 614 {
615 G4double distMin, lambda; 615 G4double distMin, lambda;
616 enum surface_e {kPlaneSurf, kCurvedSurf, kNo 616 enum surface_e {kPlaneSurf, kCurvedSurf, kNoSurf} surface;
617 617
618 distMin = kInfinity; 618 distMin = kInfinity;
619 surface = kNoSurf; 619 surface = kNoSurf;
620 620
621 if (v.z() < 0.0) 621 if (v.z() < 0.0)
622 { 622 {
623 lambda = (-p.z() - zTopCut)/v.z(); 623 lambda = (-p.z() - zTopCut)/v.z();
624 624
625 if ( (sqr((p.x() + lambda*v.x())/xSemiAxis 625 if ( (sqr((p.x() + lambda*v.x())/xSemiAxis) +
626 sqr((p.y() + lambda*v.y())/ySemiAxis 626 sqr((p.y() + lambda*v.y())/ySemiAxis)) <
627 sqr(zheight + zTopCut + halfCarTol) 627 sqr(zheight + zTopCut + halfCarTol) )
628 { 628 {
629 distMin = std::fabs(lambda); 629 distMin = std::fabs(lambda);
630 630
631 if (!calcNorm) { return distMin; } 631 if (!calcNorm) { return distMin; }
632 } 632 }
633 distMin = std::fabs(lambda); 633 distMin = std::fabs(lambda);
634 surface = kPlaneSurf; 634 surface = kPlaneSurf;
635 } 635 }
636 636
637 if (v.z() > 0.0) 637 if (v.z() > 0.0)
638 { 638 {
639 lambda = (zTopCut - p.z()) / v.z(); 639 lambda = (zTopCut - p.z()) / v.z();
640 640
641 if ( (sqr((p.x() + lambda*v.x())/xSemiAxis 641 if ( (sqr((p.x() + lambda*v.x())/xSemiAxis)
642 + sqr((p.y() + lambda*v.y())/ySemiAxis 642 + sqr((p.y() + lambda*v.y())/ySemiAxis) )
643 < (sqr(zheight - zTopCut + halfCarTol)) 643 < (sqr(zheight - zTopCut + halfCarTol)) )
644 { 644 {
645 distMin = std::fabs(lambda); 645 distMin = std::fabs(lambda);
646 if (!calcNorm) { return distMin; } 646 if (!calcNorm) { return distMin; }
647 } 647 }
648 distMin = std::fabs(lambda); 648 distMin = std::fabs(lambda);
649 surface = kPlaneSurf; 649 surface = kPlaneSurf;
650 } 650 }
651 651
652 // if we are here then it either intersects 652 // if we are here then it either intersects or grazes the
653 // curved surface... 653 // curved surface...
654 // 654 //
655 G4double A = sqr(v.x()/xSemiAxis) + sqr(v.y( 655 G4double A = sqr(v.x()/xSemiAxis) + sqr(v.y()/ySemiAxis) - sqr(v.z());
656 G4double B = 2.*(v.x()*p.x()/sqr(xSemiAxis) 656 G4double B = 2.*(v.x()*p.x()/sqr(xSemiAxis) +
657 v.y()*p.y()/sqr(ySemiAxis) 657 v.y()*p.y()/sqr(ySemiAxis) + v.z()*(zheight-p.z()));
658 G4double C = sqr(p.x()/xSemiAxis) + sqr(p.y( 658 G4double C = sqr(p.x()/xSemiAxis) + sqr(p.y()/ySemiAxis)
659 - sqr(zheight - p.z()); 659 - sqr(zheight - p.z());
660 660
661 G4double discr = B*B - 4.*A*C; 661 G4double discr = B*B - 4.*A*C;
662 662
663 if ( discr >= - halfCarTol && discr < halfCa 663 if ( discr >= - halfCarTol && discr < halfCarTol )
664 { 664 {
665 if(!calcNorm) { return distMin = std::fabs 665 if(!calcNorm) { return distMin = std::fabs(-B/(2.*A)); }
666 } 666 }
667 667
668 else if ( discr > halfCarTol ) 668 else if ( discr > halfCarTol )
669 { 669 {
670 G4double plus = (-B+std::sqrt(discr))/(2. 670 G4double plus = (-B+std::sqrt(discr))/(2.*A);
671 G4double minus = (-B-std::sqrt(discr))/(2. 671 G4double minus = (-B-std::sqrt(discr))/(2.*A);
672 672
673 if ( plus > halfCarTol && minus > halfCarT 673 if ( plus > halfCarTol && minus > halfCarTol )
674 { 674 {
675 // take the shorter distance 675 // take the shorter distance
676 // 676 //
677 lambda = std::fabs(plus) < std::fabs(m 677 lambda = std::fabs(plus) < std::fabs(minus) ? plus : minus;
678 } 678 }
679 else 679 else
680 { 680 {
681 // at least one solution is close to zer 681 // at least one solution is close to zero or negative
682 // so, take small positive solution or z 682 // so, take small positive solution or zero
683 // 683 //
684 lambda = plus > -halfCarTol ? plus : 0 684 lambda = plus > -halfCarTol ? plus : 0;
685 } 685 }
686 686
687 if ( std::fabs(lambda) < distMin ) 687 if ( std::fabs(lambda) < distMin )
688 { 688 {
689 if( std::fabs(lambda) > halfCarTol) 689 if( std::fabs(lambda) > halfCarTol)
690 { 690 {
691 distMin = std::fabs(lambda); 691 distMin = std::fabs(lambda);
692 surface = kCurvedSurf; 692 surface = kCurvedSurf;
693 } 693 }
694 else // Point is On the Surface, Check 694 else // Point is On the Surface, Check Normal
695 { 695 {
696 G4ThreeVector truenorm(p.x()/(xSemiAxi 696 G4ThreeVector truenorm(p.x()/(xSemiAxis*xSemiAxis),
697 p.y()/(ySemiAxi 697 p.y()/(ySemiAxis*ySemiAxis),
698 -( p.z() - zhei 698 -( p.z() - zheight ));
699 if( truenorm.dot(v) > 0 ) 699 if( truenorm.dot(v) > 0 )
700 { 700 {
701 distMin = 0.0; 701 distMin = 0.0;
702 surface = kCurvedSurf; 702 surface = kCurvedSurf;
703 } 703 }
704 } 704 }
705 } 705 }
706 } 706 }
707 707
708 // set normal if requested 708 // set normal if requested
709 // 709 //
710 if (calcNorm) 710 if (calcNorm)
711 { 711 {
712 if (surface == kNoSurf) 712 if (surface == kNoSurf)
713 { 713 {
714 *validNorm = false; 714 *validNorm = false;
715 } 715 }
716 else 716 else
717 { 717 {
718 *validNorm = true; 718 *validNorm = true;
719 switch (surface) 719 switch (surface)
720 { 720 {
721 case kPlaneSurf: 721 case kPlaneSurf:
722 { 722 {
723 *n = G4ThreeVector(0.,0.,(v.z() > 0. 723 *n = G4ThreeVector(0.,0.,(v.z() > 0.0 ? 1. : -1.));
724 } 724 }
725 break; 725 break;
726 726
727 case kCurvedSurf: 727 case kCurvedSurf:
728 { 728 {
729 G4ThreeVector pexit = p + distMin*v; 729 G4ThreeVector pexit = p + distMin*v;
730 G4ThreeVector truenorm( pexit.x()/(x 730 G4ThreeVector truenorm( pexit.x()/(xSemiAxis*xSemiAxis),
731 pexit.y()/(y 731 pexit.y()/(ySemiAxis*ySemiAxis),
732 -( pexit.z() 732 -( pexit.z() - zheight ) );
733 truenorm /= truenorm.mag(); 733 truenorm /= truenorm.mag();
734 *n= truenorm; 734 *n= truenorm;
735 } 735 }
736 break; 736 break;
737 737
738 default: // Should never re 738 default: // Should never reach this case ...
739 DumpInfo(); 739 DumpInfo();
740 std::ostringstream message; 740 std::ostringstream message;
741 G4long oldprc = message.precision(16 741 G4long oldprc = message.precision(16);
742 message << "Undefined side for valid 742 message << "Undefined side for valid surface normal to solid."
743 << G4endl 743 << G4endl
744 << "Position:" << G4endl 744 << "Position:" << G4endl
745 << " p.x() = " << p.x()/ 745 << " p.x() = " << p.x()/mm << " mm" << G4endl
746 << " p.y() = " << p.y()/ 746 << " p.y() = " << p.y()/mm << " mm" << G4endl
747 << " p.z() = " << p.z()/ 747 << " p.z() = " << p.z()/mm << " mm" << G4endl
748 << "Direction:" << G4endl 748 << "Direction:" << G4endl
749 << " v.x() = " << v.x() 749 << " v.x() = " << v.x() << G4endl
750 << " v.y() = " << v.y() 750 << " v.y() = " << v.y() << G4endl
751 << " v.z() = " << v.z() 751 << " v.z() = " << v.z() << G4endl
752 << "Proposed distance :" << 752 << "Proposed distance :" << G4endl
753 << " distMin = " << dis 753 << " distMin = " << distMin/mm << " mm";
754 message.precision(oldprc); 754 message.precision(oldprc);
755 G4Exception("G4EllipticalCone::Dista 755 G4Exception("G4EllipticalCone::DistanceToOut(p,v,..)",
756 "GeomSolids1002", JustWa 756 "GeomSolids1002", JustWarning, message);
757 break; 757 break;
758 } 758 }
759 } 759 }
760 } 760 }
761 761
762 if (distMin < halfCarTol) { distMin=0; } 762 if (distMin < halfCarTol) { distMin=0; }
763 763
764 return distMin; 764 return distMin;
765 } 765 }
766 766
767 ////////////////////////////////////////////// 767 /////////////////////////////////////////////////////////////////////////
768 // 768 //
769 // Calculate distance (<=actual) to closest su 769 // Calculate distance (<=actual) to closest surface of shape from inside
770 770
771 G4double G4EllipticalCone::DistanceToOut(const 771 G4double G4EllipticalCone::DistanceToOut(const G4ThreeVector& p) const
772 { 772 {
773 #ifdef G4SPECSDEBUG 773 #ifdef G4SPECSDEBUG
774 if( Inside(p) == kOutside ) 774 if( Inside(p) == kOutside )
775 { 775 {
776 std::ostringstream message; 776 std::ostringstream message;
777 G4long oldprc = message.precision(16); 777 G4long oldprc = message.precision(16);
778 message << "Point p is outside (!?) of so 778 message << "Point p is outside (!?) of solid: " << GetName() << "\n"
779 << "Position:\n" 779 << "Position:\n"
780 << " p.x() = " << p.x()/mm << 780 << " p.x() = " << p.x()/mm << " mm\n"
781 << " p.y() = " << p.y()/mm << 781 << " p.y() = " << p.y()/mm << " mm\n"
782 << " p.z() = " << p.z()/mm << 782 << " p.z() = " << p.z()/mm << " mm";
783 message.precision(oldprc) ; 783 message.precision(oldprc) ;
784 G4Exception("G4Ellipsoid::DistanceToOut(p 784 G4Exception("G4Ellipsoid::DistanceToOut(p)", "GeomSolids1002",
785 JustWarning, message); 785 JustWarning, message);
786 DumpInfo(); 786 DumpInfo();
787 } 787 }
788 #endif 788 #endif
789 G4double hp = std::sqrt(p.x()*p.x()*invXX + 789 G4double hp = std::sqrt(p.x()*p.x()*invXX + p.y()*p.y()*invYY) + p.z();
790 G4double ds = (zheight - hp)*cosAxisMin; 790 G4double ds = (zheight - hp)*cosAxisMin;
791 G4double dz = zTopCut - std::abs(p.z()); 791 G4double dz = zTopCut - std::abs(p.z());
792 G4double dist = std::min(ds,dz); 792 G4double dist = std::min(ds,dz);
793 return (dist > 0) ? dist : 0.; 793 return (dist > 0) ? dist : 0.;
794 } 794 }
795 795
796 ////////////////////////////////////////////// 796 /////////////////////////////////////////////////////////////////////////
797 // 797 //
798 // GetEntityType 798 // GetEntityType
799 799
800 G4GeometryType G4EllipticalCone::GetEntityType 800 G4GeometryType G4EllipticalCone::GetEntityType() const
801 { 801 {
802 return {"G4EllipticalCone"}; << 802 return G4String("G4EllipticalCone");
803 } 803 }
804 804
805 ////////////////////////////////////////////// 805 /////////////////////////////////////////////////////////////////////////
806 // 806 //
807 // Make a clone of the object 807 // Make a clone of the object
808 808
809 G4VSolid* G4EllipticalCone::Clone() const 809 G4VSolid* G4EllipticalCone::Clone() const
810 { 810 {
811 return new G4EllipticalCone(*this); 811 return new G4EllipticalCone(*this);
812 } 812 }
813 813
814 ////////////////////////////////////////////// 814 /////////////////////////////////////////////////////////////////////////
815 // 815 //
816 // Stream object contents to an output stream 816 // Stream object contents to an output stream
817 817
818 std::ostream& G4EllipticalCone::StreamInfo( st 818 std::ostream& G4EllipticalCone::StreamInfo( std::ostream& os ) const
819 { 819 {
820 G4long oldprc = os.precision(16); 820 G4long oldprc = os.precision(16);
821 os << "------------------------------------- 821 os << "-----------------------------------------------------------\n"
822 << " *** Dump for solid - " << GetName 822 << " *** Dump for solid - " << GetName() << " ***\n"
823 << " ================================= 823 << " ===================================================\n"
824 << " Solid type: G4EllipticalCone\n" 824 << " Solid type: G4EllipticalCone\n"
825 << " Parameters: \n" 825 << " Parameters: \n"
826 826
827 << " semi-axis x: " << xSemiAxis/mm << 827 << " semi-axis x: " << xSemiAxis/mm << " mm \n"
828 << " semi-axis y: " << ySemiAxis/mm << 828 << " semi-axis y: " << ySemiAxis/mm << " mm \n"
829 << " height z: " << zheight/mm << " 829 << " height z: " << zheight/mm << " mm \n"
830 << " half length in z: " << zTopCut/m 830 << " half length in z: " << zTopCut/mm << " mm \n"
831 << "------------------------------------- 831 << "-----------------------------------------------------------\n";
832 os.precision(oldprc); 832 os.precision(oldprc);
833 833
834 return os; 834 return os;
835 } 835 }
836 836
837 ////////////////////////////////////////////// 837 /////////////////////////////////////////////////////////////////////////
838 // 838 //
839 // Return random point on the surface of the s 839 // Return random point on the surface of the solid
840 840
841 G4ThreeVector G4EllipticalCone::GetPointOnSurf 841 G4ThreeVector G4EllipticalCone::GetPointOnSurface() const
842 { 842 {
843 G4double x0 = xSemiAxis*zheight; // x semi a 843 G4double x0 = xSemiAxis*zheight; // x semi axis at z=0
844 G4double y0 = ySemiAxis*zheight; // y semi a 844 G4double y0 = ySemiAxis*zheight; // y semi axis at z=0
845 G4double s0 = G4GeomTools::EllipticConeLater 845 G4double s0 = G4GeomTools::EllipticConeLateralArea(x0,y0,zheight);
846 G4double kmin = (zTopCut >= zheight ) ? 0. : 846 G4double kmin = (zTopCut >= zheight ) ? 0. : (zheight - zTopCut)/zheight;
847 G4double kmax = (zTopCut >= zheight ) ? 2. : 847 G4double kmax = (zTopCut >= zheight ) ? 2. : (zheight + zTopCut)/zheight;
848 848
849 // Set areas (base at -Z, side surface, base 849 // Set areas (base at -Z, side surface, base at +Z)
850 // 850 //
851 G4double szmin = pi*x0*y0*kmax*kmax; 851 G4double szmin = pi*x0*y0*kmax*kmax;
852 G4double szmax = pi*x0*y0*kmin*kmin; 852 G4double szmax = pi*x0*y0*kmin*kmin;
853 G4double sside = s0*(kmax*kmax - kmin*kmin) 853 G4double sside = s0*(kmax*kmax - kmin*kmin);
854 G4double ssurf[3] = { szmin, sside, szmax }; 854 G4double ssurf[3] = { szmin, sside, szmax };
855 for (auto i=1; i<3; ++i) { ssurf[i] += ssurf 855 for (auto i=1; i<3; ++i) { ssurf[i] += ssurf[i-1]; }
856 856
857 // Select surface 857 // Select surface
858 // 858 //
859 G4double select = ssurf[2]*G4UniformRand(); 859 G4double select = ssurf[2]*G4UniformRand();
860 G4int k = 2; 860 G4int k = 2;
861 if (select <= ssurf[1]) k = 1; 861 if (select <= ssurf[1]) k = 1;
862 if (select <= ssurf[0]) k = 0; 862 if (select <= ssurf[0]) k = 0;
863 863
864 // Pick random point on selected surface 864 // Pick random point on selected surface
865 // 865 //
866 G4ThreeVector p; 866 G4ThreeVector p;
867 switch(k) 867 switch(k)
868 { 868 {
869 case 0: // base at -Z, uniform distributio 869 case 0: // base at -Z, uniform distribution, rejection sampling
870 { 870 {
871 G4double zh = zheight + zTopCut; 871 G4double zh = zheight + zTopCut;
872 G4TwoVector rho = G4RandomPointInEllipse 872 G4TwoVector rho = G4RandomPointInEllipse(zh*xSemiAxis,zh*ySemiAxis);
873 p.set(rho.x(),rho.y(),-zTopCut); 873 p.set(rho.x(),rho.y(),-zTopCut);
874 break; 874 break;
875 } 875 }
876 case 1: // side surface, uniform distribut 876 case 1: // side surface, uniform distribution, rejection sampling
877 { 877 {
878 G4double zh = G4RandomRadiusInRing(zheig 878 G4double zh = G4RandomRadiusInRing(zheight-zTopCut, zheight+zTopCut);
879 G4double a = x0; 879 G4double a = x0;
880 G4double b = y0; 880 G4double b = y0;
881 881
882 G4double hh = zheight*zheight; 882 G4double hh = zheight*zheight;
883 G4double aa = a*a; 883 G4double aa = a*a;
884 G4double bb = b*b; 884 G4double bb = b*b;
885 G4double R = std::max(a,b); 885 G4double R = std::max(a,b);
886 G4double mu_max = R*std::sqrt(hh + R*R); 886 G4double mu_max = R*std::sqrt(hh + R*R);
887 887
888 G4double x,y; 888 G4double x,y;
889 for (auto i=0; i<1000; ++i) 889 for (auto i=0; i<1000; ++i)
890 { 890 {
891 G4double phi = CLHEP::twopi*G4UniformRand(); 891 G4double phi = CLHEP::twopi*G4UniformRand();
892 x = std::cos(phi); 892 x = std::cos(phi);
893 y = std::sin(phi); 893 y = std::sin(phi);
894 G4double xx = x*x; 894 G4double xx = x*x;
895 G4double yy = y*y; 895 G4double yy = y*y;
896 G4double E = hh + aa*xx + bb*yy; 896 G4double E = hh + aa*xx + bb*yy;
897 G4double F = (aa-bb)*x*y; 897 G4double F = (aa-bb)*x*y;
898 G4double G = aa*yy + bb*xx; 898 G4double G = aa*yy + bb*xx;
899 G4double mu = std::sqrt(E*G - F*F); 899 G4double mu = std::sqrt(E*G - F*F);
900 if (mu_max*G4UniformRand() <= mu) brea 900 if (mu_max*G4UniformRand() <= mu) break;
901 } 901 }
902 p.set(zh*xSemiAxis*x,zh*ySemiAxis*y,zhei 902 p.set(zh*xSemiAxis*x,zh*ySemiAxis*y,zheight-zh);
903 break; 903 break;
904 } 904 }
905 case 2: // base at +Z, uniform distributio 905 case 2: // base at +Z, uniform distribution, rejection sampling
906 { 906 {
907 G4double zh = zheight - zTopCut; 907 G4double zh = zheight - zTopCut;
908 G4TwoVector rho = G4RandomPointInEllipse 908 G4TwoVector rho = G4RandomPointInEllipse(zh*xSemiAxis,zh*ySemiAxis);
909 p.set(rho.x(),rho.y(),zTopCut); 909 p.set(rho.x(),rho.y(),zTopCut);
910 break; 910 break;
911 } 911 }
912 } 912 }
913 return p; 913 return p;
914 } 914 }
915 915
916 ////////////////////////////////////////////// 916 /////////////////////////////////////////////////////////////////////////
917 // 917 //
918 // Get cubic volume 918 // Get cubic volume
919 919
920 G4double G4EllipticalCone::GetCubicVolume() 920 G4double G4EllipticalCone::GetCubicVolume()
921 { 921 {
922 if (fCubicVolume == 0.0) 922 if (fCubicVolume == 0.0)
923 { 923 {
924 G4double x0 = xSemiAxis*zheight; // x semi 924 G4double x0 = xSemiAxis*zheight; // x semi axis at z=0
925 G4double y0 = ySemiAxis*zheight; // y semi 925 G4double y0 = ySemiAxis*zheight; // y semi axis at z=0
926 G4double v0 = CLHEP::pi*x0*y0*zheight/3.; 926 G4double v0 = CLHEP::pi*x0*y0*zheight/3.;
927 G4double kmin = (zTopCut >= zheight ) ? 0. 927 G4double kmin = (zTopCut >= zheight ) ? 0. : (zheight - zTopCut)/zheight;
928 G4double kmax = (zTopCut >= zheight ) ? 2. 928 G4double kmax = (zTopCut >= zheight ) ? 2. : (zheight + zTopCut)/zheight;
929 fCubicVolume = (kmax - kmin)*(kmax*kmax + 929 fCubicVolume = (kmax - kmin)*(kmax*kmax + kmax*kmin + kmin*kmin)*v0;
930 } 930 }
931 return fCubicVolume; 931 return fCubicVolume;
932 } 932 }
933 933
934 ////////////////////////////////////////////// 934 /////////////////////////////////////////////////////////////////////////
935 // 935 //
936 // Get surface area 936 // Get surface area
937 937
938 G4double G4EllipticalCone::GetSurfaceArea() 938 G4double G4EllipticalCone::GetSurfaceArea()
939 { 939 {
940 if (fSurfaceArea == 0.0) 940 if (fSurfaceArea == 0.0)
941 { 941 {
942 G4double x0 = xSemiAxis*zheight; // x semi 942 G4double x0 = xSemiAxis*zheight; // x semi axis at z=0
943 G4double y0 = ySemiAxis*zheight; // y semi 943 G4double y0 = ySemiAxis*zheight; // y semi axis at z=0
944 G4double s0 = G4GeomTools::EllipticConeLat 944 G4double s0 = G4GeomTools::EllipticConeLateralArea(x0,y0,zheight);
945 G4double kmin = (zTopCut >= zheight ) ? 0. 945 G4double kmin = (zTopCut >= zheight ) ? 0. : (zheight - zTopCut)/zheight;
946 G4double kmax = (zTopCut >= zheight ) ? 2. 946 G4double kmax = (zTopCut >= zheight ) ? 2. : (zheight + zTopCut)/zheight;
947 fSurfaceArea = (kmax - kmin)*(kmax + kmin) 947 fSurfaceArea = (kmax - kmin)*(kmax + kmin)*s0
948 + CLHEP::pi*x0*y0*(kmin*kmin 948 + CLHEP::pi*x0*y0*(kmin*kmin + kmax*kmax);
949 } 949 }
950 return fSurfaceArea; 950 return fSurfaceArea;
951 } 951 }
952 952
953 ////////////////////////////////////////////// 953 /////////////////////////////////////////////////////////////////////////
954 // 954 //
955 // Methods for visualisation 955 // Methods for visualisation
956 956
957 void G4EllipticalCone::DescribeYourselfTo (G4V 957 void G4EllipticalCone::DescribeYourselfTo (G4VGraphicsScene& scene) const
958 { 958 {
959 scene.AddSolid(*this); 959 scene.AddSolid(*this);
960 } 960 }
961 961
962 G4VisExtent G4EllipticalCone::GetExtent() cons 962 G4VisExtent G4EllipticalCone::GetExtent() const
963 { 963 {
964 // Define the sides of the box into which th 964 // Define the sides of the box into which the solid instance would fit.
965 // 965 //
966 G4ThreeVector pmin,pmax; 966 G4ThreeVector pmin,pmax;
967 BoundingLimits(pmin,pmax); 967 BoundingLimits(pmin,pmax);
968 return { pmin.x(), pmax.x(), pmin.y(), pmax. << 968 return G4VisExtent(pmin.x(),pmax.x(),
>> 969 pmin.y(),pmax.y(),
>> 970 pmin.z(),pmax.z());
969 } 971 }
970 972
971 G4Polyhedron* G4EllipticalCone::CreatePolyhedr 973 G4Polyhedron* G4EllipticalCone::CreatePolyhedron () const
972 { 974 {
973 return new G4PolyhedronEllipticalCone(xSemiA 975 return new G4PolyhedronEllipticalCone(xSemiAxis, ySemiAxis, zheight, zTopCut);
974 } 976 }
975 977
976 G4Polyhedron* G4EllipticalCone::GetPolyhedron 978 G4Polyhedron* G4EllipticalCone::GetPolyhedron () const
977 { 979 {
978 if ( (fpPolyhedron == nullptr) 980 if ( (fpPolyhedron == nullptr)
979 || fRebuildPolyhedron 981 || fRebuildPolyhedron
980 || (fpPolyhedron->GetNumberOfRotationSteps 982 || (fpPolyhedron->GetNumberOfRotationStepsAtTimeOfCreation() !=
981 fpPolyhedron->GetNumberOfRotationSteps 983 fpPolyhedron->GetNumberOfRotationSteps()) )
982 { 984 {
983 G4AutoLock l(&polyhedronMutex); 985 G4AutoLock l(&polyhedronMutex);
984 delete fpPolyhedron; 986 delete fpPolyhedron;
985 fpPolyhedron = CreatePolyhedron(); 987 fpPolyhedron = CreatePolyhedron();
986 fRebuildPolyhedron = false; 988 fRebuildPolyhedron = false;
987 l.unlock(); 989 l.unlock();
988 } 990 }
989 return fpPolyhedron; 991 return fpPolyhedron;
990 } 992 }
991 993
992 #endif // !defined(G4GEOM_USE_UELLIPTICALCONE) 994 #endif // !defined(G4GEOM_USE_UELLIPTICALCONE) || !defined(G4GEOM_USE_SYS_USOLIDS)
993 995