Geant4 Cross Reference

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Geant4/geometry/solids/CSG/src/G4UTubs.cc

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Diff markup

Differences between /geometry/solids/CSG/src/G4UTubs.cc (Version 11.3.0) and /geometry/solids/CSG/src/G4UTubs.cc (Version 9.5.p2)


  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
  7 // * conditions of the Geant4 Software License    
  8 // * LICENSE and available at  http://cern.ch/    
  9 // * include a list of copyright holders.         
 10 // *                                              
 11 // * Neither the authors of this software syst    
 12 // * institutes,nor the agencies providing fin    
 13 // * work  make  any representation or  warran    
 14 // * regarding  this  software system or assum    
 15 // * use.  Please see the license in the file     
 16 // * for the full disclaimer and the limitatio    
 17 // *                                              
 18 // * This  code  implementation is the result     
 19 // * technical work of the GEANT4 collaboratio    
 20 // * By using,  copying,  modifying or  distri    
 21 // * any work based  on the software)  you  ag    
 22 // * use  in  resulting  scientific  publicati    
 23 // * acceptance of all terms of the Geant4 Sof    
 24 // *******************************************    
 25 //                                                
 26 // Implementation for G4UTubs wrapper class       
 27 //                                                
 28 // 30.10.13 G.Cosmo, CERN/PH                      
 29 // -------------------------------------------    
 30                                                   
 31 #include "G4Tubs.hh"                              
 32 #include "G4UTubs.hh"                             
 33                                                   
 34 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G    
 35                                                   
 36 #include "G4GeomTools.hh"                         
 37 #include "G4AffineTransform.hh"                   
 38 #include "G4VPVParameterisation.hh"               
 39 #include "G4BoundingEnvelope.hh"                  
 40                                                   
 41 using namespace CLHEP;                            
 42                                                   
 43 //////////////////////////////////////////////    
 44 //                                                
 45 // Constructor - check parameters, convert ang    
 46 //             - note if pdphi>2PI then reset     
 47                                                   
 48 G4UTubs::G4UTubs( const G4String& pName,          
 49                         G4double pRMin, G4doub    
 50                         G4double pDz,             
 51                         G4double pSPhi, G4doub    
 52   : Base_t(pName, pRMin, pRMax, pDz, pSPhi, pD    
 53 {                                                 
 54 }                                                 
 55                                                   
 56 //////////////////////////////////////////////    
 57 //                                                
 58 // Fake default constructor - sets only member    
 59 //                            for usage restri    
 60 //                                                
 61 G4UTubs::G4UTubs( __void__& a )                   
 62   : Base_t(a)                                     
 63 {                                                 
 64 }                                                 
 65                                                   
 66 //////////////////////////////////////////////    
 67 //                                                
 68 // Destructor                                     
 69                                                   
 70 G4UTubs::~G4UTubs() = default;                    
 71                                                   
 72 //////////////////////////////////////////////    
 73 //                                                
 74 // Copy constructor                               
 75                                                   
 76 G4UTubs::G4UTubs(const G4UTubs& rhs)              
 77   : Base_t(rhs)                                   
 78 {                                                 
 79 }                                                 
 80                                                   
 81 //////////////////////////////////////////////    
 82 //                                                
 83 // Assignment operator                            
 84                                                   
 85 G4UTubs& G4UTubs::operator = (const G4UTubs& r    
 86 {                                                 
 87    // Check assignment to self                    
 88    //                                             
 89    if (this == &rhs)  { return *this; }           
 90                                                   
 91    // Copy base class data                        
 92    //                                             
 93    Base_t::operator=(rhs);                        
 94                                                   
 95    return *this;                                  
 96 }                                                 
 97                                                   
 98 //////////////////////////////////////////////    
 99 //                                                
100 // Accessors and modifiers                        
101                                                   
102 G4double G4UTubs::GetInnerRadius() const          
103 {                                                 
104   return rmin();                                  
105 }                                                 
106 G4double G4UTubs::GetOuterRadius() const          
107 {                                                 
108   return rmax();                                  
109 }                                                 
110 G4double G4UTubs::GetZHalfLength() const          
111 {                                                 
112   return z();                                     
113 }                                                 
114 G4double G4UTubs::GetStartPhiAngle() const        
115 {                                                 
116   return sphi();                                  
117 }                                                 
118 G4double G4UTubs::GetDeltaPhiAngle() const        
119 {                                                 
120   return dphi();                                  
121 }                                                 
122 G4double G4UTubs::GetSinStartPhi() const          
123 {                                                 
124   return std::sin(GetStartPhiAngle());            
125 }                                                 
126 G4double G4UTubs::GetCosStartPhi() const          
127 {                                                 
128   return std::cos(GetStartPhiAngle());            
129 }                                                 
130 G4double G4UTubs::GetSinEndPhi() const            
131 {                                                 
132   return std::sin(GetStartPhiAngle()+GetDeltaP    
133 }                                                 
134 G4double G4UTubs::GetCosEndPhi() const            
135 {                                                 
136   return std::cos(GetStartPhiAngle()+GetDeltaP    
137 }                                                 
138                                                   
139 void G4UTubs::SetInnerRadius(G4double newRMin)    
140 {                                                 
141   SetRMin(newRMin);                               
142   fRebuildPolyhedron = true;                      
143 }                                                 
144 void G4UTubs::SetOuterRadius(G4double newRMax)    
145 {                                                 
146   SetRMax(newRMax);                               
147   fRebuildPolyhedron = true;                      
148 }                                                 
149 void G4UTubs::SetZHalfLength(G4double newDz)      
150 {                                                 
151   SetDz(newDz);                                   
152   fRebuildPolyhedron = true;                      
153 }                                                 
154 void G4UTubs::SetStartPhiAngle(G4double newSPh    
155 {                                                 
156   SetSPhi(newSPhi);                               
157   fRebuildPolyhedron = true;                      
158 }                                                 
159 void G4UTubs::SetDeltaPhiAngle(G4double newDPh    
160 {                                                 
161   SetDPhi(newDPhi);                               
162   fRebuildPolyhedron = true;                      
163 }                                                 
164                                                   
165 //////////////////////////////////////////////    
166 //                                                
167 // Dispatch to parameterisation for replicatio    
168 // computation & modification.                    
169                                                   
170 void G4UTubs::ComputeDimensions(      G4VPVPar    
171                                 const G4int n,    
172                                 const G4VPhysi    
173 {                                                 
174   p->ComputeDimensions(*(G4Tubs*)this,n,pRep)     
175 }                                                 
176                                                   
177 //////////////////////////////////////////////    
178 //                                                
179 // Make a clone of the object                     
180                                                   
181 G4VSolid* G4UTubs::Clone() const                  
182 {                                                 
183   return new G4UTubs(*this);                      
184 }                                                 
185                                                   
186 //////////////////////////////////////////////    
187 //                                                
188 // Get bounding box                               
189                                                   
190 void G4UTubs::BoundingLimits(G4ThreeVector& pM    
191 {                                                 
192   static G4bool checkBBox = true;                 
193                                                   
194   G4double rmin = GetInnerRadius();               
195   G4double rmax = GetOuterRadius();               
196   G4double dz   = GetZHalfLength();               
197                                                   
198   // Find bounding box                            
199   //                                              
200   if (GetDeltaPhiAngle() < twopi)                 
201   {                                               
202     G4TwoVector vmin,vmax;                        
203     G4GeomTools::DiskExtent(rmin,rmax,            
204                             GetSinStartPhi(),G    
205                             GetSinEndPhi(),Get    
206                             vmin,vmax);           
207     pMin.set(vmin.x(),vmin.y(),-dz);              
208     pMax.set(vmax.x(),vmax.y(), dz);              
209   }                                               
210   else                                            
211   {                                               
212     pMin.set(-rmax,-rmax,-dz);                    
213     pMax.set( rmax, rmax, dz);                    
214   }                                               
215                                                   
216   // Check correctness of the bounding box        
217   //                                              
218   if (pMin.x() >= pMax.x() || pMin.y() >= pMax    
219   {                                               
220     std::ostringstream message;                   
221     message << "Bad bounding box (min >= max)     
222             << GetName() << " !"                  
223             << "\npMin = " << pMin                
224             << "\npMax = " << pMax;               
225     G4Exception("G4UTubs::BoundingLimits()", "    
226                 JustWarning, message);            
227     StreamInfo(G4cout);                           
228   }                                               
229                                                   
230   // Check consistency of bounding boxes          
231   //                                              
232   if (checkBBox)                                  
233   {                                               
234     U3Vector vmin, vmax;                          
235     Extent(vmin,vmax);                            
236     if (std::abs(pMin.x()-vmin.x()) > kCarTole    
237         std::abs(pMin.y()-vmin.y()) > kCarTole    
238         std::abs(pMin.z()-vmin.z()) > kCarTole    
239         std::abs(pMax.x()-vmax.x()) > kCarTole    
240         std::abs(pMax.y()-vmax.y()) > kCarTole    
241         std::abs(pMax.z()-vmax.z()) > kCarTole    
242     {                                             
243       std::ostringstream message;                 
244       message << "Inconsistency in bounding bo    
245               << GetName() << " !"                
246               << "\nBBox min: wrapper = " << p    
247               << "\nBBox max: wrapper = " << p    
248       G4Exception("G4UTubs::BoundingLimits()",    
249                   JustWarning, message);          
250       checkBBox = false;                          
251     }                                             
252   }                                               
253 }                                                 
254                                                   
255 //////////////////////////////////////////////    
256 //                                                
257 // Calculate extent under transform and specif    
258                                                   
259 G4bool                                            
260 G4UTubs::CalculateExtent(const EAxis pAxis,       
261                          const G4VoxelLimits&     
262                          const G4AffineTransfo    
263                                G4double& pMin,    
264 {                                                 
265   G4ThreeVector bmin, bmax;                       
266   G4bool exist;                                   
267                                                   
268   // Get bounding box                             
269   BoundingLimits(bmin,bmax);                      
270                                                   
271   // Check bounding box                           
272   G4BoundingEnvelope bbox(bmin,bmax);             
273 #ifdef G4BBOX_EXTENT                              
274   if (true) return bbox.CalculateExtent(pAxis,    
275 #endif                                            
276   if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox    
277   {                                               
278     return exist = pMin < pMax;                   
279   }                                               
280                                                   
281   // Get parameters of the solid                  
282   G4double rmin = GetInnerRadius();               
283   G4double rmax = GetOuterRadius();               
284   G4double dz   = GetZHalfLength();               
285   G4double dphi = GetDeltaPhiAngle();             
286                                                   
287   // Find bounding envelope and calculate exte    
288   //                                              
289   const G4int NSTEPS = 24;            // numbe    
290   G4double astep  = twopi/NSTEPS;     // max a    
291   G4int    ksteps = (dphi <= astep) ? 1 : (G4i    
292   G4double ang    = dphi/ksteps;                  
293                                                   
294   G4double sinHalf = std::sin(0.5*ang);           
295   G4double cosHalf = std::cos(0.5*ang);           
296   G4double sinStep = 2.*sinHalf*cosHalf;          
297   G4double cosStep = 1. - 2.*sinHalf*sinHalf;     
298   G4double rext    = rmax/cosHalf;                
299                                                   
300   // bounding envelope for full cylinder consi    
301   // in other cases it is a sequence of quadri    
302   if (rmin == 0 && dphi == twopi)                 
303   {                                               
304     G4double sinCur = sinHalf;                    
305     G4double cosCur = cosHalf;                    
306                                                   
307     G4ThreeVectorList baseA(NSTEPS),baseB(NSTE    
308     for (G4int k=0; k<NSTEPS; ++k)                
309     {                                             
310       baseA[k].set(rext*cosCur,rext*sinCur,-dz    
311       baseB[k].set(rext*cosCur,rext*sinCur, dz    
312                                                   
313       G4double sinTmp = sinCur;                   
314       sinCur = sinCur*cosStep + cosCur*sinStep    
315       cosCur = cosCur*cosStep - sinTmp*sinStep    
316     }                                             
317     std::vector<const G4ThreeVectorList *> pol    
318     polygons[0] = &baseA;                         
319     polygons[1] = &baseB;                         
320     G4BoundingEnvelope benv(bmin,bmax,polygons    
321     exist = benv.CalculateExtent(pAxis,pVoxelL    
322   }                                               
323   else                                            
324   {                                               
325     G4double sinStart = GetSinStartPhi();         
326     G4double cosStart = GetCosStartPhi();         
327     G4double sinEnd   = GetSinEndPhi();           
328     G4double cosEnd   = GetCosEndPhi();           
329     G4double sinCur   = sinStart*cosHalf + cos    
330     G4double cosCur   = cosStart*cosHalf - sin    
331                                                   
332     // set quadrilaterals                         
333     G4ThreeVectorList pols[NSTEPS+2];             
334     for (G4int k=0; k<ksteps+2; ++k) pols[k].r    
335     pols[0][0].set(rmin*cosStart,rmin*sinStart    
336     pols[0][1].set(rmin*cosStart,rmin*sinStart    
337     pols[0][2].set(rmax*cosStart,rmax*sinStart    
338     pols[0][3].set(rmax*cosStart,rmax*sinStart    
339     for (G4int k=1; k<ksteps+1; ++k)              
340     {                                             
341       pols[k][0].set(rmin*cosCur,rmin*sinCur,     
342       pols[k][1].set(rmin*cosCur,rmin*sinCur,-    
343       pols[k][2].set(rext*cosCur,rext*sinCur,-    
344       pols[k][3].set(rext*cosCur,rext*sinCur,     
345                                                   
346       G4double sinTmp = sinCur;                   
347       sinCur = sinCur*cosStep + cosCur*sinStep    
348       cosCur = cosCur*cosStep - sinTmp*sinStep    
349     }                                             
350     pols[ksteps+1][0].set(rmin*cosEnd,rmin*sin    
351     pols[ksteps+1][1].set(rmin*cosEnd,rmin*sin    
352     pols[ksteps+1][2].set(rmax*cosEnd,rmax*sin    
353     pols[ksteps+1][3].set(rmax*cosEnd,rmax*sin    
354                                                   
355     // set envelope and calculate extent          
356     std::vector<const G4ThreeVectorList *> pol    
357     polygons.resize(ksteps+2);                    
358     for (G4int k=0; k<ksteps+2; ++k) polygons[    
359     G4BoundingEnvelope benv(bmin,bmax,polygons    
360     exist = benv.CalculateExtent(pAxis,pVoxelL    
361   }                                               
362   return exist;                                   
363 }                                                 
364                                                   
365 //////////////////////////////////////////////    
366 //                                                
367 // Create polyhedron for visualization            
368 //                                                
369 G4Polyhedron* G4UTubs::CreatePolyhedron() cons    
370 {                                                 
371   return new G4PolyhedronTubs(GetInnerRadius()    
372                               GetOuterRadius()    
373                               GetZHalfLength()    
374                               GetStartPhiAngle    
375                               GetDeltaPhiAngle    
376 }                                                 
377                                                   
378 #endif  // G4GEOM_USE_USOLIDS                     
379