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25 // 25 //
26 // Implementation of G4PolyconeSide, the face <<
27 // one conical side of a polycone <<
28 // 26 //
29 // Author: David C. Williams (davidw@scipp.ucs << 27 // $Id: G4PolyconeSide.cc,v 1.25 2010-07-12 15:25:37 gcosmo Exp $
>> 28 // GEANT4 tag $Name: geant4-09-04-patch-02 $
>> 29 //
>> 30 //
>> 31 // --------------------------------------------------------------------
>> 32 // GEANT 4 class source file
>> 33 //
>> 34 //
>> 35 // G4PolyconeSide.cc
>> 36 //
>> 37 // Implementation of the face representing one conical side of a polycone
>> 38 //
30 // ------------------------------------------- 39 // --------------------------------------------------------------------
31 40
32 #include "G4PolyconeSide.hh" 41 #include "G4PolyconeSide.hh"
33 #include "meshdefs.hh" <<
34 #include "G4PhysicalConstants.hh" <<
35 #include "G4IntersectingCone.hh" 42 #include "G4IntersectingCone.hh"
36 #include "G4ClippablePolygon.hh" 43 #include "G4ClippablePolygon.hh"
37 #include "G4AffineTransform.hh" 44 #include "G4AffineTransform.hh"
>> 45 #include "meshdefs.hh"
38 #include "G4SolidExtentList.hh" 46 #include "G4SolidExtentList.hh"
39 #include "G4GeometryTolerance.hh" 47 #include "G4GeometryTolerance.hh"
40 48
41 #include "Randomize.hh" 49 #include "Randomize.hh"
42 50
43 // This new field helps to use the class G4PlS <<
44 // 51 //
45 G4PlSideManager G4PolyconeSide::subInstanceMan <<
46 <<
47 // This macro changes the references to fields <<
48 // in the class G4PlSideData. <<
49 // <<
50 #define G4MT_pcphix ((subInstanceManager.offse <<
51 #define G4MT_pcphiy ((subInstanceManager.offse <<
52 #define G4MT_pcphiz ((subInstanceManager.offse <<
53 #define G4MT_pcphik ((subInstanceManager.offse <<
54 <<
55 // Returns the private data instance manager. <<
56 // <<
57 const G4PlSideManager& G4PolyconeSide::GetSubI <<
58 { <<
59 return subInstanceManager; <<
60 } <<
61 <<
62 // Constructor 52 // Constructor
63 // 53 //
64 // Values for r1,z1 and r2,z2 should be specif 54 // Values for r1,z1 and r2,z2 should be specified in clockwise
65 // order in (r,z). 55 // order in (r,z).
66 // 56 //
67 G4PolyconeSide::G4PolyconeSide( const G4Polyco << 57 G4PolyconeSide::G4PolyconeSide( const G4PolyconeSideRZ *prevRZ,
68 const G4Polyco << 58 const G4PolyconeSideRZ *tail,
69 const G4Polyco << 59 const G4PolyconeSideRZ *head,
70 const G4Polyco << 60 const G4PolyconeSideRZ *nextRZ,
71 G4double 61 G4double thePhiStart,
72 G4double 62 G4double theDeltaPhi,
73 G4bool t 63 G4bool thePhiIsOpen,
74 G4bool i 64 G4bool isAllBehind )
>> 65 : ncorners(0), corners(0)
75 { 66 {
76 instanceID = subInstanceManager.CreateSubIns <<
77 <<
78 kCarTolerance = G4GeometryTolerance::GetInst 67 kCarTolerance = G4GeometryTolerance::GetInstance()->GetSurfaceTolerance();
79 G4MT_pcphix = 0.0; G4MT_pcphiy = 0.0; G4MT_p << 68 fSurfaceArea = 0.0;
>> 69 fPhi.first = G4ThreeVector(0,0,0);
>> 70 fPhi.second= 0.0;
80 71
81 // 72 //
82 // Record values 73 // Record values
83 // 74 //
84 r[0] = tail->r; z[0] = tail->z; 75 r[0] = tail->r; z[0] = tail->z;
85 r[1] = head->r; z[1] = head->z; 76 r[1] = head->r; z[1] = head->z;
86 77
87 phiIsOpen = thePhiIsOpen; 78 phiIsOpen = thePhiIsOpen;
88 if (phiIsOpen) 79 if (phiIsOpen)
89 { 80 {
90 deltaPhi = theDeltaPhi; 81 deltaPhi = theDeltaPhi;
91 startPhi = thePhiStart; 82 startPhi = thePhiStart;
92 83
93 // 84 //
94 // Set phi values to our conventions 85 // Set phi values to our conventions
95 // 86 //
96 while (deltaPhi < 0.0) // Loop checking << 87 while (deltaPhi < 0.0) deltaPhi += twopi;
97 deltaPhi += twopi; << 88 while (startPhi < 0.0) startPhi += twopi;
98 while (startPhi < 0.0) // Loop checking <<
99 startPhi += twopi; <<
100 89
101 // 90 //
102 // Calculate corner coordinates 91 // Calculate corner coordinates
103 // 92 //
104 ncorners = 4; 93 ncorners = 4;
105 corners = new G4ThreeVector[ncorners]; 94 corners = new G4ThreeVector[ncorners];
106 95
107 corners[0] = G4ThreeVector( tail->r*std::c 96 corners[0] = G4ThreeVector( tail->r*std::cos(startPhi),
108 tail->r*std::s 97 tail->r*std::sin(startPhi), tail->z );
109 corners[1] = G4ThreeVector( head->r*std::c 98 corners[1] = G4ThreeVector( head->r*std::cos(startPhi),
110 head->r*std::s 99 head->r*std::sin(startPhi), head->z );
111 corners[2] = G4ThreeVector( tail->r*std::c 100 corners[2] = G4ThreeVector( tail->r*std::cos(startPhi+deltaPhi),
112 tail->r*std::s 101 tail->r*std::sin(startPhi+deltaPhi), tail->z );
113 corners[3] = G4ThreeVector( head->r*std::c 102 corners[3] = G4ThreeVector( head->r*std::cos(startPhi+deltaPhi),
114 head->r*std::s 103 head->r*std::sin(startPhi+deltaPhi), head->z );
115 } 104 }
116 else 105 else
117 { 106 {
118 deltaPhi = twopi; 107 deltaPhi = twopi;
119 startPhi = 0.0; 108 startPhi = 0.0;
120 } 109 }
121 110
122 allBehind = isAllBehind; 111 allBehind = isAllBehind;
123 112
124 // 113 //
125 // Make our intersecting cone 114 // Make our intersecting cone
126 // 115 //
127 cone = new G4IntersectingCone( r, z ); 116 cone = new G4IntersectingCone( r, z );
128 117
129 // 118 //
130 // Calculate vectors in r,z space 119 // Calculate vectors in r,z space
131 // 120 //
132 rS = r[1]-r[0]; zS = z[1]-z[0]; 121 rS = r[1]-r[0]; zS = z[1]-z[0];
133 length = std::sqrt( rS*rS + zS*zS); 122 length = std::sqrt( rS*rS + zS*zS);
134 rS /= length; zS /= length; 123 rS /= length; zS /= length;
135 124
136 rNorm = +zS; 125 rNorm = +zS;
137 zNorm = -rS; 126 zNorm = -rS;
138 127
139 G4double lAdj; 128 G4double lAdj;
140 129
141 prevRS = r[0]-prevRZ->r; 130 prevRS = r[0]-prevRZ->r;
142 prevZS = z[0]-prevRZ->z; 131 prevZS = z[0]-prevRZ->z;
143 lAdj = std::sqrt( prevRS*prevRS + prevZS*pre 132 lAdj = std::sqrt( prevRS*prevRS + prevZS*prevZS );
144 prevRS /= lAdj; 133 prevRS /= lAdj;
145 prevZS /= lAdj; 134 prevZS /= lAdj;
146 135
147 rNormEdge[0] = rNorm + prevZS; 136 rNormEdge[0] = rNorm + prevZS;
148 zNormEdge[0] = zNorm - prevRS; 137 zNormEdge[0] = zNorm - prevRS;
149 lAdj = std::sqrt( rNormEdge[0]*rNormEdge[0] 138 lAdj = std::sqrt( rNormEdge[0]*rNormEdge[0] + zNormEdge[0]*zNormEdge[0] );
150 rNormEdge[0] /= lAdj; 139 rNormEdge[0] /= lAdj;
151 zNormEdge[0] /= lAdj; 140 zNormEdge[0] /= lAdj;
152 141
153 nextRS = nextRZ->r-r[1]; 142 nextRS = nextRZ->r-r[1];
154 nextZS = nextRZ->z-z[1]; 143 nextZS = nextRZ->z-z[1];
155 lAdj = std::sqrt( nextRS*nextRS + nextZS*nex 144 lAdj = std::sqrt( nextRS*nextRS + nextZS*nextZS );
156 nextRS /= lAdj; 145 nextRS /= lAdj;
157 nextZS /= lAdj; 146 nextZS /= lAdj;
158 147
159 rNormEdge[1] = rNorm + nextZS; 148 rNormEdge[1] = rNorm + nextZS;
160 zNormEdge[1] = zNorm - nextRS; 149 zNormEdge[1] = zNorm - nextRS;
161 lAdj = std::sqrt( rNormEdge[1]*rNormEdge[1] 150 lAdj = std::sqrt( rNormEdge[1]*rNormEdge[1] + zNormEdge[1]*zNormEdge[1] );
162 rNormEdge[1] /= lAdj; 151 rNormEdge[1] /= lAdj;
163 zNormEdge[1] /= lAdj; 152 zNormEdge[1] /= lAdj;
164 } 153 }
165 154
>> 155
>> 156 //
166 // Fake default constructor - sets only member 157 // Fake default constructor - sets only member data and allocates memory
167 // for usage restri 158 // for usage restricted to object persistency.
168 // 159 //
169 G4PolyconeSide::G4PolyconeSide( __void__& ) 160 G4PolyconeSide::G4PolyconeSide( __void__& )
170 : startPhi(0.), deltaPhi(0.), << 161 : startPhi(0.), deltaPhi(0.), phiIsOpen(false), allBehind(false),
171 rNorm(0.), zNorm(0.), rS(0.), zS(0.), leng << 162 cone(0), rNorm(0.), zNorm(0.), rS(0.), zS(0.), length(0.),
172 prevRS(0.), prevZS(0.), nextRS(0.), nextZS << 163 prevRS(0.), prevZS(0.), nextRS(0.), nextZS(0.), ncorners(0), corners(0),
173 kCarTolerance(0.), instanceID(0) << 164 kCarTolerance(0.), fSurfaceArea(0.)
174 { 165 {
175 r[0] = r[1] = 0.; 166 r[0] = r[1] = 0.;
176 z[0] = z[1] = 0.; 167 z[0] = z[1] = 0.;
177 rNormEdge[0]= rNormEdge[1] = 0.; 168 rNormEdge[0]= rNormEdge[1] = 0.;
178 zNormEdge[0]= zNormEdge[1] = 0.; 169 zNormEdge[0]= zNormEdge[1] = 0.;
179 } 170 }
180 171
>> 172
>> 173 //
181 // Destructor 174 // Destructor
182 // 175 //
183 G4PolyconeSide::~G4PolyconeSide() 176 G4PolyconeSide::~G4PolyconeSide()
184 { 177 {
185 delete cone; 178 delete cone;
186 if (phiIsOpen) { delete [] corners; } 179 if (phiIsOpen) { delete [] corners; }
187 } 180 }
188 181
>> 182
>> 183 //
189 // Copy constructor 184 // Copy constructor
190 // 185 //
191 G4PolyconeSide::G4PolyconeSide( const G4Polyco << 186 G4PolyconeSide::G4PolyconeSide( const G4PolyconeSide &source )
>> 187 : G4VCSGface(), ncorners(0), corners(0)
192 { 188 {
193 instanceID = subInstanceManager.CreateSubIns <<
194 <<
195 CopyStuff( source ); 189 CopyStuff( source );
196 } 190 }
197 191
>> 192
>> 193 //
198 // Assignment operator 194 // Assignment operator
199 // 195 //
200 G4PolyconeSide& G4PolyconeSide::operator=( con << 196 G4PolyconeSide& G4PolyconeSide::operator=( const G4PolyconeSide &source )
201 { 197 {
202 if (this == &source) { return *this; } 198 if (this == &source) { return *this; }
203 199
204 delete cone; 200 delete cone;
205 if (phiIsOpen) { delete [] corners; } 201 if (phiIsOpen) { delete [] corners; }
206 202
207 CopyStuff( source ); 203 CopyStuff( source );
208 204
209 return *this; 205 return *this;
210 } 206 }
211 207
>> 208
>> 209 //
212 // CopyStuff 210 // CopyStuff
213 // 211 //
214 void G4PolyconeSide::CopyStuff( const G4Polyco << 212 void G4PolyconeSide::CopyStuff( const G4PolyconeSide &source )
215 { 213 {
216 r[0] = source.r[0]; 214 r[0] = source.r[0];
217 r[1] = source.r[1]; 215 r[1] = source.r[1];
218 z[0] = source.z[0]; 216 z[0] = source.z[0];
219 z[1] = source.z[1]; 217 z[1] = source.z[1];
220 218
221 startPhi = source.startPhi; 219 startPhi = source.startPhi;
222 deltaPhi = source.deltaPhi; 220 deltaPhi = source.deltaPhi;
223 phiIsOpen = source.phiIsOpen; 221 phiIsOpen = source.phiIsOpen;
224 allBehind = source.allBehind; 222 allBehind = source.allBehind;
225 223
226 kCarTolerance = source.kCarTolerance; 224 kCarTolerance = source.kCarTolerance;
227 fSurfaceArea = source.fSurfaceArea; 225 fSurfaceArea = source.fSurfaceArea;
228 226
229 cone = new G4IntersectingCone( *source.co 227 cone = new G4IntersectingCone( *source.cone );
230 228
231 rNorm = source.rNorm; 229 rNorm = source.rNorm;
232 zNorm = source.zNorm; 230 zNorm = source.zNorm;
233 rS = source.rS; 231 rS = source.rS;
234 zS = source.zS; 232 zS = source.zS;
235 length = source.length; 233 length = source.length;
236 prevRS = source.prevRS; 234 prevRS = source.prevRS;
237 prevZS = source.prevZS; 235 prevZS = source.prevZS;
238 nextRS = source.nextRS; 236 nextRS = source.nextRS;
239 nextZS = source.nextZS; 237 nextZS = source.nextZS;
240 238
241 rNormEdge[0] = source.rNormEdge[0]; 239 rNormEdge[0] = source.rNormEdge[0];
242 rNormEdge[1] = source.rNormEdge[1]; 240 rNormEdge[1] = source.rNormEdge[1];
243 zNormEdge[0] = source.zNormEdge[0]; 241 zNormEdge[0] = source.zNormEdge[0];
244 zNormEdge[1] = source.zNormEdge[1]; 242 zNormEdge[1] = source.zNormEdge[1];
245 243
246 if (phiIsOpen) 244 if (phiIsOpen)
247 { 245 {
248 ncorners = 4; 246 ncorners = 4;
249 corners = new G4ThreeVector[ncorners]; 247 corners = new G4ThreeVector[ncorners];
250 248
251 corners[0] = source.corners[0]; 249 corners[0] = source.corners[0];
252 corners[1] = source.corners[1]; 250 corners[1] = source.corners[1];
253 corners[2] = source.corners[2]; 251 corners[2] = source.corners[2];
254 corners[3] = source.corners[3]; 252 corners[3] = source.corners[3];
255 } 253 }
256 } 254 }
257 255
>> 256
>> 257 //
258 // Intersect 258 // Intersect
259 // 259 //
260 G4bool G4PolyconeSide::Intersect( const G4Thre << 260 G4bool G4PolyconeSide::Intersect( const G4ThreeVector &p,
261 const G4Thre << 261 const G4ThreeVector &v,
262 G4bool 262 G4bool outgoing,
263 G4doub 263 G4double surfTolerance,
264 G4doub << 264 G4double &distance,
265 G4doub << 265 G4double &distFromSurface,
266 G4Thre << 266 G4ThreeVector &normal,
267 G4bool << 267 G4bool &isAllBehind )
268 { 268 {
269 G4double s1=0., s2=0.; << 269 G4double s1, s2;
270 G4double normSign = outgoing ? +1 : -1; 270 G4double normSign = outgoing ? +1 : -1;
271 271
272 isAllBehind = allBehind; 272 isAllBehind = allBehind;
273 273
274 // 274 //
275 // Check for two possible intersections 275 // Check for two possible intersections
276 // 276 //
277 G4int nside = cone->LineHitsCone( p, v, &s1, 277 G4int nside = cone->LineHitsCone( p, v, &s1, &s2 );
278 if (nside == 0) return false; 278 if (nside == 0) return false;
279 279
280 // 280 //
281 // Check the first side first, since it is ( 281 // Check the first side first, since it is (supposed to be) closest
282 // 282 //
283 G4ThreeVector hit = p + s1*v; 283 G4ThreeVector hit = p + s1*v;
284 284
285 if (PointOnCone( hit, normSign, p, v, normal 285 if (PointOnCone( hit, normSign, p, v, normal ))
286 { 286 {
287 // 287 //
288 // Good intersection! What about the norma 288 // Good intersection! What about the normal?
289 // 289 //
290 if (normSign*v.dot(normal) > 0) 290 if (normSign*v.dot(normal) > 0)
291 { 291 {
292 // 292 //
293 // We have a valid intersection, but it 293 // We have a valid intersection, but it could very easily
294 // be behind the point. To decide if we 294 // be behind the point. To decide if we tolerate this,
295 // we have to see if the point p is on t 295 // we have to see if the point p is on the surface near
296 // the intersecting point. 296 // the intersecting point.
297 // 297 //
298 // What does it mean exactly for the poi 298 // What does it mean exactly for the point p to be "near"
299 // the intersection? It means that if we 299 // the intersection? It means that if we draw a line from
300 // p to the hit, the line remains entire 300 // p to the hit, the line remains entirely within the
301 // tolerance bounds of the cone. To test 301 // tolerance bounds of the cone. To test this, we can
302 // ask if the normal is correct near p. 302 // ask if the normal is correct near p.
303 // 303 //
304 G4double pr = p.perp(); 304 G4double pr = p.perp();
305 if (pr < DBL_MIN) pr = DBL_MIN; 305 if (pr < DBL_MIN) pr = DBL_MIN;
306 G4ThreeVector pNormal( rNorm*p.x()/pr, r 306 G4ThreeVector pNormal( rNorm*p.x()/pr, rNorm*p.y()/pr, zNorm );
307 if (normSign*v.dot(pNormal) > 0) 307 if (normSign*v.dot(pNormal) > 0)
308 { 308 {
309 // 309 //
310 // p and intersection in same hemisphe 310 // p and intersection in same hemisphere
311 // 311 //
312 G4double distOutside2; 312 G4double distOutside2;
313 distFromSurface = -normSign*DistanceAw 313 distFromSurface = -normSign*DistanceAway( p, false, distOutside2 );
314 if (distOutside2 < surfTolerance*surfT 314 if (distOutside2 < surfTolerance*surfTolerance)
315 { 315 {
316 if (distFromSurface > -surfTolerance 316 if (distFromSurface > -surfTolerance)
317 { 317 {
318 // 318 //
319 // We are just inside or away from 319 // We are just inside or away from the
320 // surface. Accept *any* value of 320 // surface. Accept *any* value of distance.
321 // 321 //
322 distance = s1; 322 distance = s1;
323 return true; 323 return true;
324 } 324 }
325 } 325 }
326 } 326 }
327 else 327 else
328 distFromSurface = s1; 328 distFromSurface = s1;
329 329
330 // 330 //
331 // Accept positive distances 331 // Accept positive distances
332 // 332 //
333 if (s1 > 0) 333 if (s1 > 0)
334 { 334 {
335 distance = s1; 335 distance = s1;
336 return true; 336 return true;
337 } 337 }
338 } 338 }
339 } 339 }
340 340
341 if (nside==1) return false; 341 if (nside==1) return false;
342 342
343 // 343 //
344 // Well, try the second hit 344 // Well, try the second hit
345 // 345 //
346 hit = p + s2*v; 346 hit = p + s2*v;
347 347
348 if (PointOnCone( hit, normSign, p, v, normal 348 if (PointOnCone( hit, normSign, p, v, normal ))
349 { 349 {
350 // 350 //
351 // Good intersection! What about the norma 351 // Good intersection! What about the normal?
352 // 352 //
353 if (normSign*v.dot(normal) > 0) 353 if (normSign*v.dot(normal) > 0)
354 { 354 {
355 G4double pr = p.perp(); 355 G4double pr = p.perp();
356 if (pr < DBL_MIN) pr = DBL_MIN; 356 if (pr < DBL_MIN) pr = DBL_MIN;
357 G4ThreeVector pNormal( rNorm*p.x()/pr, r 357 G4ThreeVector pNormal( rNorm*p.x()/pr, rNorm*p.y()/pr, zNorm );
358 if (normSign*v.dot(pNormal) > 0) 358 if (normSign*v.dot(pNormal) > 0)
359 { 359 {
360 G4double distOutside2; 360 G4double distOutside2;
361 distFromSurface = -normSign*DistanceAw 361 distFromSurface = -normSign*DistanceAway( p, false, distOutside2 );
362 if (distOutside2 < surfTolerance*surfT 362 if (distOutside2 < surfTolerance*surfTolerance)
363 { 363 {
364 if (distFromSurface > -surfTolerance 364 if (distFromSurface > -surfTolerance)
365 { 365 {
366 distance = s2; 366 distance = s2;
367 return true; 367 return true;
368 } 368 }
369 } 369 }
370 } 370 }
371 else 371 else
372 distFromSurface = s2; 372 distFromSurface = s2;
373 373
374 if (s2 > 0) 374 if (s2 > 0)
375 { 375 {
376 distance = s2; 376 distance = s2;
377 return true; 377 return true;
378 } 378 }
379 } 379 }
380 } 380 }
381 381
382 // 382 //
383 // Better luck next time 383 // Better luck next time
384 // 384 //
385 return false; 385 return false;
386 } 386 }
387 387
388 // Distance << 388
389 // << 389 G4double G4PolyconeSide::Distance( const G4ThreeVector &p, G4bool outgoing )
390 G4double G4PolyconeSide::Distance( const G4Thr <<
391 { 390 {
392 G4double normSign = outgoing ? -1 : +1; 391 G4double normSign = outgoing ? -1 : +1;
393 G4double distFrom, distOut2; 392 G4double distFrom, distOut2;
394 393
395 // 394 //
396 // We have two tries for each hemisphere. Tr 395 // We have two tries for each hemisphere. Try the closest first.
397 // 396 //
398 distFrom = normSign*DistanceAway( p, false, 397 distFrom = normSign*DistanceAway( p, false, distOut2 );
399 if (distFrom > -0.5*kCarTolerance ) 398 if (distFrom > -0.5*kCarTolerance )
400 { 399 {
401 // 400 //
402 // Good answer 401 // Good answer
403 // 402 //
404 if (distOut2 > 0) 403 if (distOut2 > 0)
405 return std::sqrt( distFrom*distFrom + di 404 return std::sqrt( distFrom*distFrom + distOut2 );
406 else 405 else
407 return std::fabs(distFrom); 406 return std::fabs(distFrom);
408 } 407 }
409 408
410 // 409 //
411 // Try second side. 410 // Try second side.
412 // 411 //
413 distFrom = normSign*DistanceAway( p, true, 412 distFrom = normSign*DistanceAway( p, true, distOut2 );
414 if (distFrom > -0.5*kCarTolerance) 413 if (distFrom > -0.5*kCarTolerance)
415 { 414 {
416 415
417 if (distOut2 > 0) 416 if (distOut2 > 0)
418 return std::sqrt( distFrom*distFrom + di 417 return std::sqrt( distFrom*distFrom + distOut2 );
419 else 418 else
420 return std::fabs(distFrom); 419 return std::fabs(distFrom);
421 } 420 }
422 421
423 return kInfinity; 422 return kInfinity;
424 } 423 }
425 424
>> 425
>> 426 //
426 // Inside 427 // Inside
427 // 428 //
428 EInside G4PolyconeSide::Inside( const G4ThreeV << 429 EInside G4PolyconeSide::Inside( const G4ThreeVector &p,
429 G4double 430 G4double tolerance,
430 G4double << 431 G4double *bestDistance )
431 { 432 {
432 G4double distFrom, distOut2, dist2; << 433 //
433 G4double edgeRZnorm; << 434 // Check both sides
>> 435 //
>> 436 G4double distFrom[2], distOut2[2], dist2[2];
>> 437 G4double edgeRZnorm[2];
434 438
435 distFrom = DistanceAway( p, distOut2, &edge << 439 distFrom[0] = DistanceAway( p, false, distOut2[0], edgeRZnorm );
436 dist2 = distFrom*distFrom + distOut2; << 440 distFrom[1] = DistanceAway( p, true, distOut2[1], edgeRZnorm+1 );
437 <<
438 *bestDistance = std::sqrt( dist2); <<
439 441
>> 442 dist2[0] = distFrom[0]*distFrom[0] + distOut2[0];
>> 443 dist2[1] = distFrom[1]*distFrom[1] + distOut2[1];
>> 444
>> 445 //
>> 446 // Who's closest?
>> 447 //
>> 448 G4int i = std::fabs(dist2[0]) < std::fabs(dist2[1]) ? 0 : 1;
>> 449
>> 450 *bestDistance = std::sqrt( dist2[i] );
>> 451
>> 452 //
440 // Okay then, inside or out? 453 // Okay then, inside or out?
441 // 454 //
442 if ( (std::fabs(edgeRZnorm) < tolerance) << 455 if ( (std::fabs(edgeRZnorm[i]) < tolerance)
443 && (distOut2< tolerance*tolerance) ) << 456 && (distOut2[i] < tolerance*tolerance) )
444 return kSurface; 457 return kSurface;
445 else if (edgeRZnorm < 0) << 458 else if (edgeRZnorm[i] < 0)
446 return kInside; 459 return kInside;
447 else 460 else
448 return kOutside; 461 return kOutside;
449 } 462 }
450 463
>> 464
>> 465 //
451 // Normal 466 // Normal
452 // 467 //
453 G4ThreeVector G4PolyconeSide::Normal( const G4 << 468 G4ThreeVector G4PolyconeSide::Normal( const G4ThreeVector &p,
454 G4 << 469 G4double *bestDistance )
455 { 470 {
456 if (p == G4ThreeVector(0.,0.,0.)) { return 471 if (p == G4ThreeVector(0.,0.,0.)) { return p; }
457 472
458 G4double dFrom, dOut2; 473 G4double dFrom, dOut2;
459 474
460 dFrom = DistanceAway( p, false, dOut2 ); 475 dFrom = DistanceAway( p, false, dOut2 );
461 476
462 *bestDistance = std::sqrt( dFrom*dFrom + dOu 477 *bestDistance = std::sqrt( dFrom*dFrom + dOut2 );
463 478
464 G4double rds = p.perp(); << 479 G4double rad = p.perp();
465 if (rds!=0.) { return {rNorm*p.x()/rds,rNorm << 480 if (rad!=0.) { return G4ThreeVector(rNorm*p.x()/rad,rNorm*p.y()/rad,zNorm); }
466 return G4ThreeVector( 0.,0., zNorm ).unit(); 481 return G4ThreeVector( 0.,0., zNorm ).unit();
467 } 482 }
468 483
>> 484
>> 485 //
469 // Extent 486 // Extent
470 // 487 //
471 G4double G4PolyconeSide::Extent( const G4Three 488 G4double G4PolyconeSide::Extent( const G4ThreeVector axis )
472 { 489 {
473 if (axis.perp2() < DBL_MIN) 490 if (axis.perp2() < DBL_MIN)
474 { 491 {
475 // 492 //
476 // Special case 493 // Special case
477 // 494 //
478 return axis.z() < 0 ? -cone->ZLo() : cone- 495 return axis.z() < 0 ? -cone->ZLo() : cone->ZHi();
479 } 496 }
480 497
481 // 498 //
482 // Is the axis pointing inside our phi gap? 499 // Is the axis pointing inside our phi gap?
483 // 500 //
484 if (phiIsOpen) 501 if (phiIsOpen)
485 { 502 {
486 G4double phi = GetPhi(axis); 503 G4double phi = GetPhi(axis);
487 while( phi < startPhi ) // Loop checkin << 504 while( phi < startPhi ) phi += twopi;
488 phi += twopi; <<
489 505
490 if (phi > deltaPhi+startPhi) 506 if (phi > deltaPhi+startPhi)
491 { 507 {
492 // 508 //
493 // Yeah, looks so. Make four three vecto 509 // Yeah, looks so. Make four three vectors defining the phi
494 // opening 510 // opening
495 // 511 //
496 G4double cosP = std::cos(startPhi), sinP 512 G4double cosP = std::cos(startPhi), sinP = std::sin(startPhi);
497 G4ThreeVector a( r[0]*cosP, r[0]*sinP, z 513 G4ThreeVector a( r[0]*cosP, r[0]*sinP, z[0] );
498 G4ThreeVector b( r[1]*cosP, r[1]*sinP, z 514 G4ThreeVector b( r[1]*cosP, r[1]*sinP, z[1] );
499 cosP = std::cos(startPhi+deltaPhi); sinP 515 cosP = std::cos(startPhi+deltaPhi); sinP = std::sin(startPhi+deltaPhi);
500 G4ThreeVector c( r[0]*cosP, r[0]*sinP, z 516 G4ThreeVector c( r[0]*cosP, r[0]*sinP, z[0] );
501 G4ThreeVector d( r[1]*cosP, r[1]*sinP, z 517 G4ThreeVector d( r[1]*cosP, r[1]*sinP, z[1] );
502 518
503 G4double ad = axis.dot(a), 519 G4double ad = axis.dot(a),
504 bd = axis.dot(b), << 520 bd = axis.dot(b),
505 cd = axis.dot(c), << 521 cd = axis.dot(c),
506 dd = axis.dot(d); << 522 dd = axis.dot(d);
507 523
508 if (bd > ad) ad = bd; 524 if (bd > ad) ad = bd;
509 if (cd > ad) ad = cd; 525 if (cd > ad) ad = cd;
510 if (dd > ad) ad = dd; 526 if (dd > ad) ad = dd;
511 527
512 return ad; 528 return ad;
513 } 529 }
514 } 530 }
515 531
516 // 532 //
517 // Check either end 533 // Check either end
518 // 534 //
519 G4double aPerp = axis.perp(); 535 G4double aPerp = axis.perp();
520 536
521 G4double a = aPerp*r[0] + axis.z()*z[0]; 537 G4double a = aPerp*r[0] + axis.z()*z[0];
522 G4double b = aPerp*r[1] + axis.z()*z[1]; 538 G4double b = aPerp*r[1] + axis.z()*z[1];
523 539
524 if (b > a) a = b; 540 if (b > a) a = b;
525 541
526 return a; 542 return a;
527 } 543 }
528 544
>> 545
>> 546
>> 547 //
529 // CalculateExtent 548 // CalculateExtent
530 // 549 //
531 // See notes in G4VCSGface 550 // See notes in G4VCSGface
532 // 551 //
533 void G4PolyconeSide::CalculateExtent( const EA 552 void G4PolyconeSide::CalculateExtent( const EAxis axis,
534 const G4 << 553 const G4VoxelLimits &voxelLimit,
535 const G4 << 554 const G4AffineTransform &transform,
536 G4 << 555 G4SolidExtentList &extentList )
537 { 556 {
538 G4ClippablePolygon polygon; 557 G4ClippablePolygon polygon;
539 558
540 // 559 //
541 // Here we will approximate (ala G4Cons) and 560 // Here we will approximate (ala G4Cons) and divide our conical section
542 // into segments, like G4Polyhedra. When doi 561 // into segments, like G4Polyhedra. When doing so, the radius
543 // is extented far enough such that the segm 562 // is extented far enough such that the segments always lie
544 // just outside the surface of the conical s 563 // just outside the surface of the conical section we are
545 // approximating. 564 // approximating.
546 // 565 //
547 566
548 // 567 //
549 // Choose phi size of our segment(s) based o 568 // Choose phi size of our segment(s) based on constants as
550 // defined in meshdefs.hh 569 // defined in meshdefs.hh
551 // 570 //
552 G4int numPhi = (G4int)(deltaPhi/kMeshAngleDe 571 G4int numPhi = (G4int)(deltaPhi/kMeshAngleDefault) + 1;
553 if (numPhi < kMinMeshSections) 572 if (numPhi < kMinMeshSections)
554 numPhi = kMinMeshSections; 573 numPhi = kMinMeshSections;
555 else if (numPhi > kMaxMeshSections) 574 else if (numPhi > kMaxMeshSections)
556 numPhi = kMaxMeshSections; 575 numPhi = kMaxMeshSections;
557 576
558 G4double sigPhi = deltaPhi/numPhi; 577 G4double sigPhi = deltaPhi/numPhi;
559 578
560 // 579 //
561 // Determine radius factor to keep segments 580 // Determine radius factor to keep segments outside
562 // 581 //
563 G4double rFudge = 1.0/std::cos(0.5*sigPhi); 582 G4double rFudge = 1.0/std::cos(0.5*sigPhi);
564 583
565 // 584 //
566 // Decide which radius to use on each end of 585 // Decide which radius to use on each end of the side,
567 // and whether a transition mesh is required 586 // and whether a transition mesh is required
568 // 587 //
569 // {r0,z0} - Beginning of this side 588 // {r0,z0} - Beginning of this side
570 // {r1,z1} - Ending of this side 589 // {r1,z1} - Ending of this side
571 // {r2,z0} - Beginning of transition piece 590 // {r2,z0} - Beginning of transition piece connecting previous
572 // side (and ends at beginning of 591 // side (and ends at beginning of this side)
573 // 592 //
574 // So, order is 2 --> 0 --> 1. 593 // So, order is 2 --> 0 --> 1.
575 // ------- 594 // -------
576 // 595 //
577 // r2 < 0 indicates that no transition piece 596 // r2 < 0 indicates that no transition piece is required
578 // 597 //
579 G4double r0, r1, r2, z0, z1; 598 G4double r0, r1, r2, z0, z1;
580 599
581 r2 = -1; // By default: no transition piece 600 r2 = -1; // By default: no transition piece
582 601
583 if (rNorm < -DBL_MIN) 602 if (rNorm < -DBL_MIN)
584 { 603 {
585 // 604 //
586 // This side faces *inward*, and so our me 605 // This side faces *inward*, and so our mesh has
587 // the same radius 606 // the same radius
588 // 607 //
589 r1 = r[1]; 608 r1 = r[1];
590 z1 = z[1]; 609 z1 = z[1];
591 z0 = z[0]; 610 z0 = z[0];
592 r0 = r[0]; 611 r0 = r[0];
593 612
594 r2 = -1; 613 r2 = -1;
595 614
596 if (prevZS > DBL_MIN) 615 if (prevZS > DBL_MIN)
597 { 616 {
598 // 617 //
599 // The previous side is facing outwards 618 // The previous side is facing outwards
600 // 619 //
601 if ( prevRS*zS - prevZS*rS > 0 ) 620 if ( prevRS*zS - prevZS*rS > 0 )
602 { 621 {
603 // 622 //
604 // Transition was convex: build transi 623 // Transition was convex: build transition piece
605 // 624 //
606 if (r[0] > DBL_MIN) r2 = r[0]*rFudge; 625 if (r[0] > DBL_MIN) r2 = r[0]*rFudge;
607 } 626 }
608 else 627 else
609 { 628 {
610 // 629 //
611 // Transition was concave: short this 630 // Transition was concave: short this side
612 // 631 //
613 FindLineIntersect( z0, r0, zS, rS, 632 FindLineIntersect( z0, r0, zS, rS,
614 z0, r0*rFudge, prev 633 z0, r0*rFudge, prevZS, prevRS*rFudge, z0, r0 );
615 } 634 }
616 } 635 }
617 636
618 if ( nextZS > DBL_MIN && (rS*nextZS - zS*n 637 if ( nextZS > DBL_MIN && (rS*nextZS - zS*nextRS < 0) )
619 { 638 {
620 // 639 //
621 // The next side is facing outwards, for 640 // The next side is facing outwards, forming a
622 // concave transition: short this side 641 // concave transition: short this side
623 // 642 //
624 FindLineIntersect( z1, r1, zS, rS, 643 FindLineIntersect( z1, r1, zS, rS,
625 z1, r1*rFudge, nextZS 644 z1, r1*rFudge, nextZS, nextRS*rFudge, z1, r1 );
626 } 645 }
627 } 646 }
628 else if (rNorm > DBL_MIN) 647 else if (rNorm > DBL_MIN)
629 { 648 {
630 // 649 //
631 // This side faces *outward* and is given 650 // This side faces *outward* and is given a boost to
632 // it radius 651 // it radius
633 // 652 //
634 r0 = r[0]*rFudge; 653 r0 = r[0]*rFudge;
635 z0 = z[0]; 654 z0 = z[0];
636 r1 = r[1]*rFudge; 655 r1 = r[1]*rFudge;
637 z1 = z[1]; 656 z1 = z[1];
638 657
639 if (prevZS < -DBL_MIN) 658 if (prevZS < -DBL_MIN)
640 { 659 {
641 // 660 //
642 // The previous side is facing inwards 661 // The previous side is facing inwards
643 // 662 //
644 if ( prevRS*zS - prevZS*rS > 0 ) 663 if ( prevRS*zS - prevZS*rS > 0 )
645 { 664 {
646 // 665 //
647 // Transition was convex: build transi 666 // Transition was convex: build transition piece
648 // 667 //
649 if (r[0] > DBL_MIN) r2 = r[0]; 668 if (r[0] > DBL_MIN) r2 = r[0];
650 } 669 }
651 else 670 else
652 { 671 {
653 // 672 //
654 // Transition was concave: short this 673 // Transition was concave: short this side
655 // 674 //
656 FindLineIntersect( z0, r0, zS, rS*rFud 675 FindLineIntersect( z0, r0, zS, rS*rFudge,
657 z0, r[0], prevZS, p 676 z0, r[0], prevZS, prevRS, z0, r0 );
658 } 677 }
659 } 678 }
660 679
661 if ( nextZS < -DBL_MIN && (rS*nextZS - zS* 680 if ( nextZS < -DBL_MIN && (rS*nextZS - zS*nextRS < 0) )
662 { 681 {
663 // 682 //
664 // The next side is facing inwards, form 683 // The next side is facing inwards, forming a
665 // concave transition: short this side 684 // concave transition: short this side
666 // 685 //
667 FindLineIntersect( z1, r1, zS, rS*rFudge 686 FindLineIntersect( z1, r1, zS, rS*rFudge,
668 z1, r[1], nextZS, nex 687 z1, r[1], nextZS, nextRS, z1, r1 );
669 } 688 }
670 } 689 }
671 else 690 else
672 { 691 {
673 // 692 //
674 // This side is perpendicular to the z axi 693 // This side is perpendicular to the z axis (is a disk)
675 // 694 //
676 // Whether or not r0 needs a rFudge factor 695 // Whether or not r0 needs a rFudge factor depends
677 // on the normal of the previous edge. Sim 696 // on the normal of the previous edge. Similar with r1
678 // and the next edge. No transition piece 697 // and the next edge. No transition piece is required.
679 // 698 //
680 r0 = r[0]; 699 r0 = r[0];
681 r1 = r[1]; 700 r1 = r[1];
682 z0 = z[0]; 701 z0 = z[0];
683 z1 = z[1]; 702 z1 = z[1];
684 703
685 if (prevZS > DBL_MIN) r0 *= rFudge; 704 if (prevZS > DBL_MIN) r0 *= rFudge;
686 if (nextZS > DBL_MIN) r1 *= rFudge; 705 if (nextZS > DBL_MIN) r1 *= rFudge;
687 } 706 }
688 707
689 // 708 //
690 // Loop 709 // Loop
691 // 710 //
692 G4double phi = startPhi, 711 G4double phi = startPhi,
693 cosPhi = std::cos(phi), 712 cosPhi = std::cos(phi),
694 sinPhi = std::sin(phi); 713 sinPhi = std::sin(phi);
695 714
696 G4ThreeVector v0( r0*cosPhi, r0*sinPhi, z0 ) 715 G4ThreeVector v0( r0*cosPhi, r0*sinPhi, z0 ),
697 v1( r1*cosPhi, r1*sinPhi, 716 v1( r1*cosPhi, r1*sinPhi, z1 ),
698 v2, w0, w1, w2; 717 v2, w0, w1, w2;
699 transform.ApplyPointTransform( v0 ); 718 transform.ApplyPointTransform( v0 );
700 transform.ApplyPointTransform( v1 ); 719 transform.ApplyPointTransform( v1 );
701 720
702 if (r2 >= 0) 721 if (r2 >= 0)
703 { 722 {
704 v2 = G4ThreeVector( r2*cosPhi, r2*sinPhi, 723 v2 = G4ThreeVector( r2*cosPhi, r2*sinPhi, z0 );
705 transform.ApplyPointTransform( v2 ); 724 transform.ApplyPointTransform( v2 );
706 } 725 }
707 726
708 do // Loop checking, 13.08.2015, G.Cosmo << 727 do
709 { 728 {
710 phi += sigPhi; 729 phi += sigPhi;
711 if (numPhi == 1) phi = startPhi+deltaPhi; 730 if (numPhi == 1) phi = startPhi+deltaPhi; // Try to avoid roundoff
712 cosPhi = std::cos(phi), 731 cosPhi = std::cos(phi),
713 sinPhi = std::sin(phi); 732 sinPhi = std::sin(phi);
714 733
715 w0 = G4ThreeVector( r0*cosPhi, r0*sinPhi, 734 w0 = G4ThreeVector( r0*cosPhi, r0*sinPhi, z0 );
716 w1 = G4ThreeVector( r1*cosPhi, r1*sinPhi, 735 w1 = G4ThreeVector( r1*cosPhi, r1*sinPhi, z1 );
717 transform.ApplyPointTransform( w0 ); 736 transform.ApplyPointTransform( w0 );
718 transform.ApplyPointTransform( w1 ); 737 transform.ApplyPointTransform( w1 );
719 738
720 G4ThreeVector deltaV = r0 > r1 ? w0-v0 : w 739 G4ThreeVector deltaV = r0 > r1 ? w0-v0 : w1-v1;
721 740
722 // 741 //
723 // Build polygon, taking special care to k 742 // Build polygon, taking special care to keep the vertices
724 // in order 743 // in order
725 // 744 //
726 polygon.ClearAllVertices(); 745 polygon.ClearAllVertices();
727 746
728 polygon.AddVertexInOrder( v0 ); 747 polygon.AddVertexInOrder( v0 );
729 polygon.AddVertexInOrder( v1 ); 748 polygon.AddVertexInOrder( v1 );
730 polygon.AddVertexInOrder( w1 ); 749 polygon.AddVertexInOrder( w1 );
731 polygon.AddVertexInOrder( w0 ); 750 polygon.AddVertexInOrder( w0 );
732 751
733 // 752 //
734 // Get extent 753 // Get extent
735 // 754 //
736 if (polygon.PartialClip( voxelLimit, axis 755 if (polygon.PartialClip( voxelLimit, axis ))
737 { 756 {
738 // 757 //
739 // Get dot product of normal with target 758 // Get dot product of normal with target axis
740 // 759 //
741 polygon.SetNormal( deltaV.cross(v1-v0).u 760 polygon.SetNormal( deltaV.cross(v1-v0).unit() );
742 761
743 extentList.AddSurface( polygon ); 762 extentList.AddSurface( polygon );
744 } 763 }
745 764
746 if (r2 >= 0) 765 if (r2 >= 0)
747 { 766 {
748 // 767 //
749 // Repeat, for transition piece 768 // Repeat, for transition piece
750 // 769 //
751 w2 = G4ThreeVector( r2*cosPhi, r2*sinPhi 770 w2 = G4ThreeVector( r2*cosPhi, r2*sinPhi, z0 );
752 transform.ApplyPointTransform( w2 ); 771 transform.ApplyPointTransform( w2 );
753 772
754 polygon.ClearAllVertices(); 773 polygon.ClearAllVertices();
755 774
756 polygon.AddVertexInOrder( v2 ); 775 polygon.AddVertexInOrder( v2 );
757 polygon.AddVertexInOrder( v0 ); 776 polygon.AddVertexInOrder( v0 );
758 polygon.AddVertexInOrder( w0 ); 777 polygon.AddVertexInOrder( w0 );
759 polygon.AddVertexInOrder( w2 ); 778 polygon.AddVertexInOrder( w2 );
760 779
761 if (polygon.PartialClip( voxelLimit, axi 780 if (polygon.PartialClip( voxelLimit, axis ))
762 { 781 {
763 polygon.SetNormal( deltaV.cross(v0-v2) 782 polygon.SetNormal( deltaV.cross(v0-v2).unit() );
764 783
765 extentList.AddSurface( polygon ); 784 extentList.AddSurface( polygon );
766 } 785 }
767 786
768 v2 = w2; 787 v2 = w2;
769 } 788 }
770 789
771 // 790 //
772 // Next vertex 791 // Next vertex
773 // 792 //
774 v0 = w0; 793 v0 = w0;
775 v1 = w1; 794 v1 = w1;
776 } while( --numPhi > 0 ); 795 } while( --numPhi > 0 );
777 796
778 // 797 //
779 // We are almost done. But, it is important 798 // We are almost done. But, it is important that we leave no
780 // gaps in the surface of our solid. By usin 799 // gaps in the surface of our solid. By using rFudge, however,
781 // we've done exactly that, if we have a phi 800 // we've done exactly that, if we have a phi segment.
782 // Add two additional faces if necessary 801 // Add two additional faces if necessary
783 // 802 //
784 if (phiIsOpen && rNorm > DBL_MIN) 803 if (phiIsOpen && rNorm > DBL_MIN)
785 { 804 {
786 cosPhi = std::cos(startPhi); << 805 G4double cosPhi = std::cos(startPhi),
787 sinPhi = std::sin(startPhi); << 806 sinPhi = std::sin(startPhi);
788 807
789 G4ThreeVector a0( r[0]*cosPhi, r[0]*sinPhi 808 G4ThreeVector a0( r[0]*cosPhi, r[0]*sinPhi, z[0] ),
790 a1( r[1]*cosPhi, r[1]*sinPhi 809 a1( r[1]*cosPhi, r[1]*sinPhi, z[1] ),
791 b0( r0*cosPhi, r0*sinPhi, z[ 810 b0( r0*cosPhi, r0*sinPhi, z[0] ),
792 b1( r1*cosPhi, r1*sinPhi, z[ 811 b1( r1*cosPhi, r1*sinPhi, z[1] );
793 812
794 transform.ApplyPointTransform( a0 ); 813 transform.ApplyPointTransform( a0 );
795 transform.ApplyPointTransform( a1 ); 814 transform.ApplyPointTransform( a1 );
796 transform.ApplyPointTransform( b0 ); 815 transform.ApplyPointTransform( b0 );
797 transform.ApplyPointTransform( b1 ); 816 transform.ApplyPointTransform( b1 );
798 817
799 polygon.ClearAllVertices(); 818 polygon.ClearAllVertices();
800 819
801 polygon.AddVertexInOrder( a0 ); 820 polygon.AddVertexInOrder( a0 );
802 polygon.AddVertexInOrder( a1 ); 821 polygon.AddVertexInOrder( a1 );
803 polygon.AddVertexInOrder( b0 ); 822 polygon.AddVertexInOrder( b0 );
804 polygon.AddVertexInOrder( b1 ); 823 polygon.AddVertexInOrder( b1 );
805 824
806 if (polygon.PartialClip( voxelLimit , axis 825 if (polygon.PartialClip( voxelLimit , axis))
807 { 826 {
808 G4ThreeVector normal( sinPhi, -cosPhi, 0 827 G4ThreeVector normal( sinPhi, -cosPhi, 0 );
809 polygon.SetNormal( transform.TransformAx 828 polygon.SetNormal( transform.TransformAxis( normal ) );
810 829
811 extentList.AddSurface( polygon ); 830 extentList.AddSurface( polygon );
812 } 831 }
813 832
814 cosPhi = std::cos(startPhi+deltaPhi); 833 cosPhi = std::cos(startPhi+deltaPhi);
815 sinPhi = std::sin(startPhi+deltaPhi); 834 sinPhi = std::sin(startPhi+deltaPhi);
816 835
817 a0 = G4ThreeVector( r[0]*cosPhi, r[0]*sinP 836 a0 = G4ThreeVector( r[0]*cosPhi, r[0]*sinPhi, z[0] ),
818 a1 = G4ThreeVector( r[1]*cosPhi, r[1]*sinP 837 a1 = G4ThreeVector( r[1]*cosPhi, r[1]*sinPhi, z[1] ),
819 b0 = G4ThreeVector( r0*cosPhi, r0*sinPhi, 838 b0 = G4ThreeVector( r0*cosPhi, r0*sinPhi, z[0] ),
820 b1 = G4ThreeVector( r1*cosPhi, r1*sinPhi, 839 b1 = G4ThreeVector( r1*cosPhi, r1*sinPhi, z[1] );
821 transform.ApplyPointTransform( a0 ); 840 transform.ApplyPointTransform( a0 );
822 transform.ApplyPointTransform( a1 ); 841 transform.ApplyPointTransform( a1 );
823 transform.ApplyPointTransform( b0 ); 842 transform.ApplyPointTransform( b0 );
824 transform.ApplyPointTransform( b1 ); 843 transform.ApplyPointTransform( b1 );
825 844
826 polygon.ClearAllVertices(); 845 polygon.ClearAllVertices();
827 846
828 polygon.AddVertexInOrder( a0 ); 847 polygon.AddVertexInOrder( a0 );
829 polygon.AddVertexInOrder( a1 ); 848 polygon.AddVertexInOrder( a1 );
830 polygon.AddVertexInOrder( b0 ); 849 polygon.AddVertexInOrder( b0 );
831 polygon.AddVertexInOrder( b1 ); 850 polygon.AddVertexInOrder( b1 );
832 851
833 if (polygon.PartialClip( voxelLimit, axis 852 if (polygon.PartialClip( voxelLimit, axis ))
834 { 853 {
835 G4ThreeVector normal( -sinPhi, cosPhi, 0 854 G4ThreeVector normal( -sinPhi, cosPhi, 0 );
836 polygon.SetNormal( transform.TransformAx 855 polygon.SetNormal( transform.TransformAxis( normal ) );
837 856
838 extentList.AddSurface( polygon ); 857 extentList.AddSurface( polygon );
839 } 858 }
840 } 859 }
841 860
842 return; 861 return;
843 } 862 }
844 863
>> 864 //
845 // GetPhi 865 // GetPhi
846 // 866 //
847 // Calculate Phi for a given 3-vector (point), 867 // Calculate Phi for a given 3-vector (point), if not already cached for the
848 // same point, in the attempt to avoid consecu 868 // same point, in the attempt to avoid consecutive computation of the same
849 // quantity 869 // quantity
850 // 870 //
851 G4double G4PolyconeSide::GetPhi( const G4Three 871 G4double G4PolyconeSide::GetPhi( const G4ThreeVector& p )
852 { 872 {
853 G4double val=0.; 873 G4double val=0.;
854 G4ThreeVector vphi(G4MT_pcphix, G4MT_pcphiy, <<
855 874
856 if (vphi != p) << 875 if (fPhi.first != p)
857 { 876 {
858 val = p.phi(); 877 val = p.phi();
859 G4MT_pcphix = p.x(); G4MT_pcphiy = p.y(); << 878 fPhi.first = p;
860 G4MT_pcphik = val; << 879 fPhi.second = val;
861 } 880 }
862 else 881 else
863 { 882 {
864 val = G4MT_pcphik; << 883 val = fPhi.second;
865 } 884 }
866 return val; 885 return val;
867 } 886 }
868 887
>> 888 //
869 // DistanceAway 889 // DistanceAway
870 // 890 //
871 // Calculate distance of a point from our coni 891 // Calculate distance of a point from our conical surface, including the effect
872 // of any phi segmentation 892 // of any phi segmentation
873 // 893 //
874 // Arguments: 894 // Arguments:
875 // p - (in) Point to check 895 // p - (in) Point to check
876 // opposite - (in) If true, check opposi 896 // opposite - (in) If true, check opposite hemisphere (see below)
877 // distOutside - (out) Additional distance 897 // distOutside - (out) Additional distance outside the edges of the surface
878 // edgeRZnorm - (out) if negative, point i 898 // edgeRZnorm - (out) if negative, point is inside
879 // 899 //
880 // return value = distance from the conical p 900 // return value = distance from the conical plane, if extrapolated beyond edges,
881 // signed by whether the point 901 // signed by whether the point is in inside or outside the shape
882 // 902 //
883 // Notes: 903 // Notes:
884 // * There are two answers, depending on whic 904 // * There are two answers, depending on which hemisphere is considered.
885 // 905 //
886 G4double G4PolyconeSide::DistanceAway( const G << 906 G4double G4PolyconeSide::DistanceAway( const G4ThreeVector &p,
887 G 907 G4bool opposite,
888 G << 908 G4double &distOutside2,
889 G << 909 G4double *edgeRZnorm )
890 { 910 {
891 // 911 //
892 // Convert our point to r and z 912 // Convert our point to r and z
893 // 913 //
894 G4double rx = p.perp(), zx = p.z(); 914 G4double rx = p.perp(), zx = p.z();
895 915
896 // 916 //
897 // Change sign of r if opposite says we shou 917 // Change sign of r if opposite says we should
898 // 918 //
899 if (opposite) rx = -rx; 919 if (opposite) rx = -rx;
900 920
901 // 921 //
902 // Calculate return value 922 // Calculate return value
903 // 923 //
904 G4double deltaR = rx - r[0], deltaZ = zx - 924 G4double deltaR = rx - r[0], deltaZ = zx - z[0];
905 G4double answer = deltaR*rNorm + deltaZ*zNor 925 G4double answer = deltaR*rNorm + deltaZ*zNorm;
906 926
907 // 927 //
908 // Are we off the surface in r,z space? 928 // Are we off the surface in r,z space?
909 // 929 //
910 G4double q = deltaR*rS + deltaZ*zS; << 930 G4double s = deltaR*rS + deltaZ*zS;
911 if (q < 0) << 931 if (s < 0)
912 { 932 {
913 distOutside2 = q*q; << 933 distOutside2 = s*s;
914 if (edgeRZnorm != nullptr) << 934 if (edgeRZnorm) *edgeRZnorm = deltaR*rNormEdge[0] + deltaZ*zNormEdge[0];
915 *edgeRZnorm = deltaR*rNormEdge[0] + delt <<
916 } 935 }
917 else if (q > length) << 936 else if (s > length)
918 { 937 {
919 distOutside2 = sqr( q-length ); << 938 distOutside2 = sqr( s-length );
920 if (edgeRZnorm != nullptr) << 939 if (edgeRZnorm)
921 { 940 {
922 deltaR = rx - r[1]; << 941 G4double deltaR = rx - r[1], deltaZ = zx - z[1];
923 deltaZ = zx - z[1]; <<
924 *edgeRZnorm = deltaR*rNormEdge[1] + delt 942 *edgeRZnorm = deltaR*rNormEdge[1] + deltaZ*zNormEdge[1];
925 } 943 }
926 } 944 }
927 else 945 else
928 { 946 {
929 distOutside2 = 0.; << 947 distOutside2 = 0;
930 if (edgeRZnorm != nullptr) *edgeRZnorm = a << 948 if (edgeRZnorm) *edgeRZnorm = answer;
931 } 949 }
932 950
933 if (phiIsOpen) 951 if (phiIsOpen)
934 { 952 {
935 // 953 //
936 // Finally, check phi 954 // Finally, check phi
937 // 955 //
938 G4double phi = GetPhi(p); 956 G4double phi = GetPhi(p);
939 while( phi < startPhi ) // Loop checkin << 957 while( phi < startPhi ) phi += twopi;
940 phi += twopi; <<
941 958
942 if (phi > startPhi+deltaPhi) 959 if (phi > startPhi+deltaPhi)
943 { 960 {
944 // 961 //
945 // Oops. Are we closer to the start phi 962 // Oops. Are we closer to the start phi or end phi?
946 // 963 //
947 G4double d1 = phi-startPhi-deltaPhi; 964 G4double d1 = phi-startPhi-deltaPhi;
948 while( phi > startPhi ) // Loop check << 965 while( phi > startPhi ) phi -= twopi;
949 phi -= twopi; <<
950 G4double d2 = startPhi-phi; 966 G4double d2 = startPhi-phi;
951 967
952 if (d2 < d1) d1 = d2; 968 if (d2 < d1) d1 = d2;
953 969
954 // 970 //
955 // Add result to our distance 971 // Add result to our distance
956 // 972 //
957 G4double dist = d1*rx; 973 G4double dist = d1*rx;
958 974
959 distOutside2 += dist*dist; 975 distOutside2 += dist*dist;
960 if (edgeRZnorm != nullptr) << 976 if (edgeRZnorm)
961 { 977 {
962 *edgeRZnorm = std::max(std::fabs(*edge 978 *edgeRZnorm = std::max(std::fabs(*edgeRZnorm),std::fabs(dist));
963 } 979 }
964 } 980 }
965 } 981 }
966 982
967 return answer; 983 return answer;
968 } 984 }
969 985
970 // DistanceAway <<
971 // <<
972 // Special version of DistanceAway for Inside. <<
973 // Opposite parameter is not used, instead use <<
974 // <<
975 G4double G4PolyconeSide::DistanceAway( const G <<
976 G <<
977 G <<
978 { <<
979 // <<
980 // Convert our point to r and z <<
981 // <<
982 G4double rx = p.perp(), zx = p.z(); <<
983 <<
984 // <<
985 // Change sign of r if we should <<
986 // <<
987 G4int part = 1; <<
988 if (rx < 0) part = -1; <<
989 <<
990 // <<
991 // Calculate return value <<
992 // <<
993 G4double deltaR = rx - r[0]*part, deltaZ = z <<
994 G4double answer = deltaR*rNorm*part + deltaZ <<
995 <<
996 // <<
997 // Are we off the surface in r,z space? <<
998 // <<
999 G4double q = deltaR*rS*part + deltaZ*zS; <<
1000 if (q < 0) <<
1001 { <<
1002 distOutside2 = q*q; <<
1003 if (edgeRZnorm != nullptr) <<
1004 { <<
1005 *edgeRZnorm = deltaR*rNormEdge[0]*part <<
1006 } <<
1007 } <<
1008 else if (q > length) <<
1009 { <<
1010 distOutside2 = sqr( q-length ); <<
1011 if (edgeRZnorm != nullptr) <<
1012 { <<
1013 deltaR = rx - r[1]*part; <<
1014 deltaZ = zx - z[1]; <<
1015 *edgeRZnorm = deltaR*rNormEdge[1]*part <<
1016 } <<
1017 } <<
1018 else <<
1019 { <<
1020 distOutside2 = 0.; <<
1021 if (edgeRZnorm != nullptr) *edgeRZnorm = <<
1022 } <<
1023 <<
1024 if (phiIsOpen) <<
1025 { <<
1026 // <<
1027 // Finally, check phi <<
1028 // <<
1029 G4double phi = GetPhi(p); <<
1030 while( phi < startPhi ) // Loop checki <<
1031 phi += twopi; <<
1032 <<
1033 if (phi > startPhi+deltaPhi) <<
1034 { <<
1035 // <<
1036 // Oops. Are we closer to the start phi <<
1037 // <<
1038 G4double d1 = phi-startPhi-deltaPhi; <<
1039 while( phi > startPhi ) // Loop chec <<
1040 phi -= twopi; <<
1041 G4double d2 = startPhi-phi; <<
1042 <<
1043 if (d2 < d1) d1 = d2; <<
1044 <<
1045 // <<
1046 // Add result to our distance <<
1047 // <<
1048 G4double dist = d1*rx*part; <<
1049 <<
1050 distOutside2 += dist*dist; <<
1051 if (edgeRZnorm != nullptr) <<
1052 { <<
1053 *edgeRZnorm = std::max(std::fabs(*edg <<
1054 } <<
1055 } <<
1056 } <<
1057 <<
1058 return answer; <<
1059 } <<
1060 986
>> 987 //
1061 // PointOnCone 988 // PointOnCone
1062 // 989 //
1063 // Decide if a point is on a cone and return 990 // Decide if a point is on a cone and return normal if it is
1064 // 991 //
1065 G4bool G4PolyconeSide::PointOnCone( const G4T << 992 G4bool G4PolyconeSide::PointOnCone( const G4ThreeVector &hit,
1066 G4d 993 G4double normSign,
1067 const G4T << 994 const G4ThreeVector &p,
1068 const G4T << 995 const G4ThreeVector &v,
1069 G4T << 996 G4ThreeVector &normal )
1070 { 997 {
1071 G4double rx = hit.perp(); 998 G4double rx = hit.perp();
1072 // 999 //
1073 // Check radial/z extent, as appropriate 1000 // Check radial/z extent, as appropriate
1074 // 1001 //
1075 if (!cone->HitOn( rx, hit.z() )) return fal 1002 if (!cone->HitOn( rx, hit.z() )) return false;
1076 1003
1077 if (phiIsOpen) 1004 if (phiIsOpen)
1078 { 1005 {
1079 G4double phiTolerant = 2.0*kCarTolerance/ 1006 G4double phiTolerant = 2.0*kCarTolerance/(rx+kCarTolerance);
1080 // 1007 //
1081 // Check phi segment. Here we have to be 1008 // Check phi segment. Here we have to be careful
1082 // to use the standard method consistent 1009 // to use the standard method consistent with
1083 // PolyPhiFace. See PolyPhiFace::InsideEd 1010 // PolyPhiFace. See PolyPhiFace::InsideEdgesExact
1084 // 1011 //
1085 G4double phi = GetPhi(hit); 1012 G4double phi = GetPhi(hit);
1086 while( phi < startPhi-phiTolerant ) // << 1013 while( phi < startPhi-phiTolerant ) phi += twopi;
1087 phi += twopi; <<
1088 1014
1089 if (phi > startPhi+deltaPhi+phiTolerant) 1015 if (phi > startPhi+deltaPhi+phiTolerant) return false;
1090 1016
1091 if (phi > startPhi+deltaPhi-phiTolerant) 1017 if (phi > startPhi+deltaPhi-phiTolerant)
1092 { 1018 {
1093 // 1019 //
1094 // Exact treatment 1020 // Exact treatment
1095 // 1021 //
1096 G4ThreeVector qx = p + v; 1022 G4ThreeVector qx = p + v;
1097 G4ThreeVector qa = qx - corners[2], 1023 G4ThreeVector qa = qx - corners[2],
1098 qb = qx - corners[3]; 1024 qb = qx - corners[3];
1099 G4ThreeVector qacb = qa.cross(qb); 1025 G4ThreeVector qacb = qa.cross(qb);
1100 1026
1101 if (normSign*qacb.dot(v) < 0) return fa 1027 if (normSign*qacb.dot(v) < 0) return false;
1102 } 1028 }
1103 else if (phi < phiTolerant) 1029 else if (phi < phiTolerant)
1104 { 1030 {
1105 G4ThreeVector qx = p + v; 1031 G4ThreeVector qx = p + v;
1106 G4ThreeVector qa = qx - corners[1], 1032 G4ThreeVector qa = qx - corners[1],
1107 qb = qx - corners[0]; 1033 qb = qx - corners[0];
1108 G4ThreeVector qacb = qa.cross(qb); 1034 G4ThreeVector qacb = qa.cross(qb);
1109 1035
1110 if (normSign*qacb.dot(v) < 0) return fa 1036 if (normSign*qacb.dot(v) < 0) return false;
1111 } 1037 }
1112 } 1038 }
1113 1039
1114 // 1040 //
1115 // We have a good hit! Calculate normal 1041 // We have a good hit! Calculate normal
1116 // 1042 //
1117 if (rx < DBL_MIN) 1043 if (rx < DBL_MIN)
1118 normal = G4ThreeVector( 0, 0, zNorm < 0 ? 1044 normal = G4ThreeVector( 0, 0, zNorm < 0 ? -1 : 1 );
1119 else 1045 else
1120 normal = G4ThreeVector( rNorm*hit.x()/rx, 1046 normal = G4ThreeVector( rNorm*hit.x()/rx, rNorm*hit.y()/rx, zNorm );
1121 return true; 1047 return true;
1122 } 1048 }
1123 1049
>> 1050
>> 1051 //
1124 // FindLineIntersect 1052 // FindLineIntersect
1125 // 1053 //
1126 // Decide the point at which two 2-dimensiona 1054 // Decide the point at which two 2-dimensional lines intersect
1127 // 1055 //
1128 // Equation of line: x = x1 + s*tx1 1056 // Equation of line: x = x1 + s*tx1
1129 // y = y1 + s*ty1 1057 // y = y1 + s*ty1
1130 // 1058 //
1131 // It is assumed that the lines are *not* par 1059 // It is assumed that the lines are *not* parallel
1132 // 1060 //
1133 void G4PolyconeSide::FindLineIntersect( G4dou 1061 void G4PolyconeSide::FindLineIntersect( G4double x1, G4double y1,
1134 G4dou 1062 G4double tx1, G4double ty1,
1135 G4dou 1063 G4double x2, G4double y2,
1136 G4dou 1064 G4double tx2, G4double ty2,
1137 G4dou << 1065 G4double &x, G4double &y )
1138 { 1066 {
1139 // 1067 //
1140 // The solution is a simple linear equation 1068 // The solution is a simple linear equation
1141 // 1069 //
1142 G4double deter = tx1*ty2 - tx2*ty1; 1070 G4double deter = tx1*ty2 - tx2*ty1;
1143 1071
1144 G4double s1 = ((x2-x1)*ty2 - tx2*(y2-y1))/d 1072 G4double s1 = ((x2-x1)*ty2 - tx2*(y2-y1))/deter;
1145 G4double s2 = ((x2-x1)*ty1 - tx1*(y2-y1))/d 1073 G4double s2 = ((x2-x1)*ty1 - tx1*(y2-y1))/deter;
1146 1074
1147 // 1075 //
1148 // We want the answer to not depend on whic 1076 // We want the answer to not depend on which order the
1149 // lines were specified. Take average. 1077 // lines were specified. Take average.
1150 // 1078 //
1151 x = 0.5*( x1+s1*tx1 + x2+s2*tx2 ); 1079 x = 0.5*( x1+s1*tx1 + x2+s2*tx2 );
1152 y = 0.5*( y1+s1*ty1 + y2+s2*ty2 ); 1080 y = 0.5*( y1+s1*ty1 + y2+s2*ty2 );
1153 } 1081 }
1154 1082
>> 1083 //
1155 // Calculate surface area for GetPointOnSurfa 1084 // Calculate surface area for GetPointOnSurface()
1156 // 1085 //
1157 G4double G4PolyconeSide::SurfaceArea() 1086 G4double G4PolyconeSide::SurfaceArea()
1158 { 1087 {
1159 if(fSurfaceArea==0.) << 1088 if(fSurfaceArea==0)
1160 { 1089 {
1161 fSurfaceArea = (r[0]+r[1])* std::sqrt(sqr 1090 fSurfaceArea = (r[0]+r[1])* std::sqrt(sqr(r[0]-r[1])+sqr(z[0]-z[1]));
1162 fSurfaceArea *= 0.5*(deltaPhi); 1091 fSurfaceArea *= 0.5*(deltaPhi);
1163 } 1092 }
1164 return fSurfaceArea; 1093 return fSurfaceArea;
1165 } 1094 }
1166 1095
>> 1096 //
1167 // GetPointOnFace 1097 // GetPointOnFace
1168 // 1098 //
1169 G4ThreeVector G4PolyconeSide::GetPointOnFace( 1099 G4ThreeVector G4PolyconeSide::GetPointOnFace()
1170 { 1100 {
1171 G4double x,y,zz; 1101 G4double x,y,zz;
1172 G4double rr,phi,dz,dr; 1102 G4double rr,phi,dz,dr;
1173 dr=r[1]-r[0];dz=z[1]-z[0]; 1103 dr=r[1]-r[0];dz=z[1]-z[0];
1174 phi=startPhi+deltaPhi*G4UniformRand(); 1104 phi=startPhi+deltaPhi*G4UniformRand();
1175 rr=r[0]+dr*G4UniformRand(); 1105 rr=r[0]+dr*G4UniformRand();
1176 1106
1177 x=rr*std::cos(phi); 1107 x=rr*std::cos(phi);
1178 y=rr*std::sin(phi); 1108 y=rr*std::sin(phi);
1179 1109
1180 // PolyconeSide has a Ring Form 1110 // PolyconeSide has a Ring Form
1181 // 1111 //
1182 if (dz==0.) 1112 if (dz==0.)
1183 { 1113 {
1184 zz=z[0]; 1114 zz=z[0];
1185 } 1115 }
1186 else 1116 else
1187 { 1117 {
1188 if(dr==0.) // PolyconeSide has a Tube Fo 1118 if(dr==0.) // PolyconeSide has a Tube Form
1189 { 1119 {
1190 zz = z[0]+dz*G4UniformRand(); 1120 zz = z[0]+dz*G4UniformRand();
1191 } 1121 }
1192 else 1122 else
1193 { 1123 {
1194 zz = z[0]+(rr-r[0])*dz/dr; 1124 zz = z[0]+(rr-r[0])*dz/dr;
1195 } 1125 }
1196 } 1126 }
1197 1127
1198 return {x,y,zz}; << 1128 return G4ThreeVector(x,y,zz);
1199 } 1129 }
1200 1130