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PHG4GDMLWriteStructure.cc
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27 // $Id: PHG4GDMLWriteStructure.cc 68053 2013-03-13 14:39:51Z gcosmo $
28 //
29 // class PHG4GDMLWriteStructure Implementation
30 //
31 // Original author: Zoltan Torzsok, November 2007
32 //
33 // --------------------------------------------------------------------
34 
35 #include "PHG4GDMLWriteStructure.hh"
36 #include "PHG4GDMLConfig.hh"
37 
38 #include <Geant4/G4Material.hh>
39 #include <Geant4/G4ReflectedSolid.hh>
40 #include <Geant4/G4DisplacedSolid.hh>
41 #include <Geant4/G4LogicalVolumeStore.hh>
42 #include <Geant4/G4PhysicalVolumeStore.hh>
43 #include <Geant4/G4ReflectionFactory.hh>
44 #include <Geant4/G4PVDivision.hh>
45 #include <Geant4/G4PVReplica.hh>
46 #include <Geant4/G4Region.hh>
47 #include <Geant4/G4OpticalSurface.hh>
48 #include <Geant4/G4LogicalSkinSurface.hh>
49 #include <Geant4/G4LogicalBorderSurface.hh>
50 
51 #include <Geant4/G4ProductionCuts.hh>
52 #include <Geant4/G4ProductionCutsTable.hh>
53 #include <Geant4/G4Gamma.hh>
54 #include <Geant4/G4Electron.hh>
55 #include <Geant4/G4Positron.hh>
56 #include <Geant4/G4Proton.hh>
57 
58 
59 #include <cassert>
60 
61 
62 
63 PHG4GDMLWriteStructure::PHG4GDMLWriteStructure(const PHG4GDMLConfig * config_input)
64  : PHG4GDMLWriteParamvol(),structureElement(nullptr), cexport(false), config(config_input)
65 {
66  assert(config);
67  reflFactory = G4ReflectionFactory::Instance();
68 }
69 
70 PHG4GDMLWriteStructure::~PHG4GDMLWriteStructure()
71 {
72 }
73 
74 void
75 PHG4GDMLWriteStructure::DivisionvolWrite(xercesc::DOMElement* volumeElement,
76  const G4PVDivision* const divisionvol)
77 {
78  EAxis axis = kUndefined;
79  G4int number = 0;
80  G4double width = 0.0;
81  G4double offset = 0.0;
82  G4bool consuming = false;
83 
84  divisionvol->GetReplicationData(axis,number,width,offset,consuming);
85  axis = divisionvol->GetDivisionAxis();
86 
87  G4String unitString("mm");
88  G4String axisString("kUndefined");
89  if (axis==kXAxis) { axisString = "kXAxis"; }
90  else if (axis==kYAxis) { axisString = "kYAxis"; }
91  else if (axis==kZAxis) { axisString = "kZAxis"; }
92  else if (axis==kRho) { axisString = "kRho"; }
93  else if (axis==kPhi) { axisString = "kPhi"; unitString = "rad"; }
94 
95  const G4String name
96  = GenerateName(divisionvol->GetName(),divisionvol);
97  const G4String volumeref
98  = GenerateName(divisionvol->GetLogicalVolume()->GetName(),
99  divisionvol->GetLogicalVolume());
100 
101  xercesc::DOMElement* divisionvolElement = NewElement("divisionvol");
102  divisionvolElement->setAttributeNode(NewAttribute("axis",axisString));
103  divisionvolElement->setAttributeNode(NewAttribute("number",number));
104  divisionvolElement->setAttributeNode(NewAttribute("width",width));
105  divisionvolElement->setAttributeNode(NewAttribute("offset",offset));
106  divisionvolElement->setAttributeNode(NewAttribute("unit",unitString));
107  xercesc::DOMElement* volumerefElement = NewElement("volumeref");
108  volumerefElement->setAttributeNode(NewAttribute("ref",volumeref));
109  divisionvolElement->appendChild(volumerefElement);
110  volumeElement->appendChild(divisionvolElement);
111 }
112 
113 void PHG4GDMLWriteStructure::PhysvolWrite(xercesc::DOMElement* volumeElement,
114  const G4VPhysicalVolume* const physvol,
115  const G4Transform3D& T,
116  const G4String& ModuleName)
117 {
118  HepGeom::Scale3D scale;
119  HepGeom::Rotate3D rotate;
120  HepGeom::Translate3D translate;
121 
122  T.getDecomposition(scale,rotate,translate);
123 
124  const G4ThreeVector scl(scale(0,0),scale(1,1),scale(2,2));
125  const G4ThreeVector rot = GetAngles(rotate.getRotation());
126  const G4ThreeVector pos = T.getTranslation();
127 
128  const G4String name = GenerateName(physvol->GetName(),physvol);
129  const G4int copynumber = physvol->GetCopyNo();
130 
131  xercesc::DOMElement* physvolElement = NewElement("physvol");
132  physvolElement->setAttributeNode(NewAttribute("name",name));
133  if (copynumber) physvolElement->setAttributeNode(NewAttribute("copynumber", copynumber));
134 
135  volumeElement->appendChild(physvolElement);
136 
137  G4LogicalVolume* lv;
138  // Is it reflected?
139  if (reflFactory->IsReflected(physvol->GetLogicalVolume()))
140  {
141  lv = reflFactory->GetConstituentLV(physvol->GetLogicalVolume());
142  }
143  else
144  {
145  lv = physvol->GetLogicalVolume();
146  }
147 
148  const G4String volumeref = GenerateName(lv->GetName(), lv);
149 
150  if (ModuleName.empty())
151  {
152  xercesc::DOMElement* volumerefElement = NewElement("volumeref");
153  volumerefElement->setAttributeNode(NewAttribute("ref",volumeref));
154  physvolElement->appendChild(volumerefElement);
155  }
156  else
157  {
158  xercesc::DOMElement* fileElement = NewElement("file");
159  fileElement->setAttributeNode(NewAttribute("name",ModuleName));
160  fileElement->setAttributeNode(NewAttribute("volname",volumeref));
161  physvolElement->appendChild(fileElement);
162  }
163 
164  if (std::fabs(pos.x()) > kLinearPrecision
165  || std::fabs(pos.y()) > kLinearPrecision
166  || std::fabs(pos.z()) > kLinearPrecision)
167  {
168  PositionWrite(physvolElement,name+"_pos",pos);
169  }
170  if (std::fabs(rot.x()) > kAngularPrecision
171  || std::fabs(rot.y()) > kAngularPrecision
172  || std::fabs(rot.z()) > kAngularPrecision)
173  {
174  RotationWrite(physvolElement,name+"_rot",rot);
175  }
176  if (std::fabs(scl.x()-1.0) > kRelativePrecision
177  || std::fabs(scl.y()-1.0) > kRelativePrecision
178  || std::fabs(scl.z()-1.0) > kRelativePrecision)
179  {
180  ScaleWrite(physvolElement,name+"_scl",scl);
181  }
182 }
183 
184 void PHG4GDMLWriteStructure::ReplicavolWrite(xercesc::DOMElement* volumeElement,
185  const G4VPhysicalVolume* const replicavol)
186 {
187  EAxis axis = kUndefined;
188  G4int number = 0;
189  G4double width = 0.0;
190  G4double offset = 0.0;
191  G4bool consuming = false;
192  G4String unitString("mm");
193 
194  replicavol->GetReplicationData(axis,number,width,offset,consuming);
195 
196  const G4String volumeref
197  = GenerateName(replicavol->GetLogicalVolume()->GetName(),
198  replicavol->GetLogicalVolume());
199 
200  xercesc::DOMElement* replicavolElement = NewElement("replicavol");
201  replicavolElement->setAttributeNode(NewAttribute("number",number));
202  xercesc::DOMElement* volumerefElement = NewElement("volumeref");
203  volumerefElement->setAttributeNode(NewAttribute("ref",volumeref));
204  replicavolElement->appendChild(volumerefElement);
205  xercesc::DOMElement* replicateElement = NewElement("replicate_along_axis");
206  replicavolElement->appendChild(replicateElement);
207 
208  xercesc::DOMElement* dirElement = NewElement("direction");
209  if(axis==kXAxis)
210  { dirElement->setAttributeNode(NewAttribute("x","1")); }
211  else if(axis==kYAxis)
212  { dirElement->setAttributeNode(NewAttribute("y","1")); }
213  else if(axis==kZAxis)
214  { dirElement->setAttributeNode(NewAttribute("z","1")); }
215  else if(axis==kRho)
216  { dirElement->setAttributeNode(NewAttribute("rho","1")); }
217  else if(axis==kPhi)
218  { dirElement->setAttributeNode(NewAttribute("phi","1"));
219  unitString="rad"; }
220  replicateElement->appendChild(dirElement);
221 
222  xercesc::DOMElement* widthElement = NewElement("width");
223  widthElement->setAttributeNode(NewAttribute("value",width));
224  widthElement->setAttributeNode(NewAttribute("unit",unitString));
225  replicateElement->appendChild(widthElement);
226 
227  xercesc::DOMElement* offsetElement = NewElement("offset");
228  offsetElement->setAttributeNode(NewAttribute("value",offset));
229  offsetElement->setAttributeNode(NewAttribute("unit",unitString));
230  replicateElement->appendChild(offsetElement);
231 
232  volumeElement->appendChild(replicavolElement);
233 }
234 
235 void PHG4GDMLWriteStructure::
236 BorderSurfaceCache(const G4LogicalBorderSurface* const bsurf)
237 {
238  if (!bsurf) { return; }
239 
240  const G4SurfaceProperty* psurf = bsurf->GetSurfaceProperty();
241 
242  // Generate the new element for border-surface
243  //
244  xercesc::DOMElement* borderElement = NewElement("bordersurface");
245  borderElement->setAttributeNode(NewAttribute("name", bsurf->GetName()));
246  borderElement->setAttributeNode(NewAttribute("surfaceproperty",
247  psurf->GetName()));
248 
249  const G4String volumeref1 = GenerateName(bsurf->GetVolume1()->GetName(),
250  bsurf->GetVolume1());
251  const G4String volumeref2 = GenerateName(bsurf->GetVolume2()->GetName(),
252  bsurf->GetVolume2());
253  xercesc::DOMElement* volumerefElement1 = NewElement("physvolref");
254  xercesc::DOMElement* volumerefElement2 = NewElement("physvolref");
255  volumerefElement1->setAttributeNode(NewAttribute("ref",volumeref1));
256  volumerefElement2->setAttributeNode(NewAttribute("ref",volumeref2));
257  borderElement->appendChild(volumerefElement1);
258  borderElement->appendChild(volumerefElement2);
259 
260  if (FindOpticalSurface(psurf))
261  {
262  const G4OpticalSurface* opsurf =
263  dynamic_cast<const G4OpticalSurface*>(psurf);
264  if (!opsurf)
265  {
266  G4Exception("PHG4GDMLWriteStructure::BorderSurfaceCache()",
267  "InvalidSetup", FatalException, "No optical surface found!");
268  return;
269  }
270  OpticalSurfaceWrite(solidsElement, opsurf);
271  }
272 
273  borderElementVec.push_back(borderElement);
274 }
275 
276 void PHG4GDMLWriteStructure::
277 SkinSurfaceCache(const G4LogicalSkinSurface* const ssurf)
278 {
279  if (!ssurf) { return; }
280 
281  const G4SurfaceProperty* psurf = ssurf->GetSurfaceProperty();
282 
283  // Generate the new element for border-surface
284  //
285  xercesc::DOMElement* skinElement = NewElement("skinsurface");
286  skinElement->setAttributeNode(NewAttribute("name", ssurf->GetName()));
287  skinElement->setAttributeNode(NewAttribute("surfaceproperty",
288  psurf->GetName()));
289 
290  const G4String volumeref = GenerateName(ssurf->GetLogicalVolume()->GetName(),
291  ssurf->GetLogicalVolume());
292  xercesc::DOMElement* volumerefElement = NewElement("volumeref");
293  volumerefElement->setAttributeNode(NewAttribute("ref",volumeref));
294  skinElement->appendChild(volumerefElement);
295 
296  if (FindOpticalSurface(psurf))
297  {
298  const G4OpticalSurface* opsurf =
299  dynamic_cast<const G4OpticalSurface*>(psurf);
300  if (!opsurf)
301  {
302  G4Exception("PHG4GDMLWriteStructure::SkinSurfaceCache()",
303  "InvalidSetup", FatalException, "No optical surface found!");
304  return;
305  }
306  OpticalSurfaceWrite(solidsElement, opsurf);
307  }
308 
309  skinElementVec.push_back(skinElement);
310 }
311 
312 G4bool PHG4GDMLWriteStructure::FindOpticalSurface(const G4SurfaceProperty* psurf)
313 {
314  const G4OpticalSurface* osurf = dynamic_cast<const G4OpticalSurface*>(psurf);
315  std::vector<const G4OpticalSurface*>::const_iterator pos;
316  pos = std::find(opt_vec.begin(), opt_vec.end(), osurf);
317  if (pos != opt_vec.end()) { return false; } // item already created!
318 
319  opt_vec.push_back(osurf); // cache it for future reference
320  return true;
321 }
322 
323 const G4LogicalSkinSurface*
324 PHG4GDMLWriteStructure::GetSkinSurface(const G4LogicalVolume* const lvol)
325 {
326  G4LogicalSkinSurface* surf = 0;
327  G4int nsurf = G4LogicalSkinSurface::GetNumberOfSkinSurfaces();
328  if (nsurf)
329  {
330  const G4LogicalSkinSurfaceTable* stable =
331  G4LogicalSkinSurface::GetSurfaceTable();
332  std::vector<G4LogicalSkinSurface*>::const_iterator pos;
333  for (pos = stable->begin(); pos != stable->end(); ++pos)
334  {
335  if (lvol == (*pos)->GetLogicalVolume())
336  {
337  surf = *pos; break;
338  }
339  }
340  }
341  return surf;
342 }
343 
344 const G4LogicalBorderSurface*
345 PHG4GDMLWriteStructure::GetBorderSurface(const G4VPhysicalVolume* const pvol)
346 {
347  G4LogicalBorderSurface* surf = 0;
348  G4int nsurf = G4LogicalBorderSurface::GetNumberOfBorderSurfaces();
349  if (nsurf)
350  {
351  const G4LogicalBorderSurfaceTable* btable =
352  G4LogicalBorderSurface::GetSurfaceTable();
353  std::vector<G4LogicalBorderSurface*>::const_iterator pos;
354  for (pos = btable->begin(); pos != btable->end(); ++pos)
355  {
356  if (pvol == (*pos)->GetVolume1()) // just the first in the couple
357  { // is enough
358  surf = *pos; break;
359  }
360  }
361  }
362  return surf;
363 }
364 
365 void PHG4GDMLWriteStructure::SurfacesWrite()
366 {
367  std::cout << "PHG4GDML: Writing surfaces..." << std::endl;
368 
369  std::vector<xercesc::DOMElement*>::const_iterator pos;
370  for (pos = skinElementVec.begin(); pos != skinElementVec.end(); ++pos)
371  {
372  structureElement->appendChild(*pos);
373  }
374  for (pos = borderElementVec.begin(); pos != borderElementVec.end(); ++pos)
375  {
376  structureElement->appendChild(*pos);
377  }
378 }
379 
380 void PHG4GDMLWriteStructure::StructureWrite(xercesc::DOMElement* gdmlElement)
381 {
382  std::cout << "PHG4GDML: Writing structure..." << std::endl;
383 
384  structureElement = NewElement("structure");
385  gdmlElement->appendChild(structureElement);
386 }
387 
388 G4Transform3D PHG4GDMLWriteStructure::
389 TraverseVolumeTree(const G4LogicalVolume* const volumePtr, const G4int depth)
390 {
391  if (VolumeMap().find(volumePtr) != VolumeMap().end())
392  {
393  return VolumeMap()[volumePtr]; // Volume is already processed
394  }
395 
396  //jump over the exclusions
397  assert(config);
398  if (config->get_excluded_logical_vol().find(volumePtr) != config->get_excluded_logical_vol().end())
399  {
400  return G4Transform3D::Identity;
401  }
402 
403 
404  G4VSolid* solidPtr = volumePtr->GetSolid();
405  G4Transform3D R,invR;
406  G4int trans=0;
407 
408  std::map<const G4LogicalVolume*, PHG4GDMLAuxListType>::iterator auxiter;
409 
410  while (true) // Solve possible displacement/reflection
411  { // of the referenced solid!
412  if (trans>maxTransforms)
413  {
414  G4String ErrorMessage = "Referenced solid in volume '"
415  + volumePtr->GetName()
416  + "' was displaced/reflected too many times!";
417  G4Exception("PHG4GDMLWriteStructure::TraverseVolumeTree()",
418  "InvalidSetup", FatalException, ErrorMessage);
419  }
420 
421  if (G4ReflectedSolid* refl = dynamic_cast<G4ReflectedSolid*>(solidPtr))
422  {
423  R = R*refl->GetTransform3D();
424  solidPtr = refl->GetConstituentMovedSolid();
425  trans++;
426  continue;
427  }
428 
429  if (G4DisplacedSolid* disp = dynamic_cast<G4DisplacedSolid*>(solidPtr))
430  {
431  R = R*G4Transform3D(disp->GetObjectRotation(),
432  disp->GetObjectTranslation());
433  solidPtr = disp->GetConstituentMovedSolid();
434  trans++;
435  continue;
436  }
437 
438  break;
439  }
440 
441  //check if it is a reflected volume
442  G4LogicalVolume* tmplv = const_cast<G4LogicalVolume*>(volumePtr);
443 
444  if (reflFactory->IsReflected(tmplv))
445  {
446  tmplv = reflFactory->GetConstituentLV(tmplv);
447  if (VolumeMap().find(tmplv) != VolumeMap().end())
448  {
449  return R; // Volume is already processed
450  }
451  }
452 
453  // Only compute the inverse when necessary!
454  //
455  if (trans>0) { invR = R.inverse(); }
456 
457  const G4String name
458  = GenerateName(tmplv->GetName(), tmplv);
459  const G4String materialref
460  = GenerateName(volumePtr->GetMaterial()->GetName(),
461  volumePtr->GetMaterial());
462  const G4String solidref
463  = GenerateName(solidPtr->GetName(),solidPtr);
464 
465  xercesc::DOMElement* volumeElement = NewElement("volume");
466  volumeElement->setAttributeNode(NewAttribute("name",name));
467  xercesc::DOMElement* materialrefElement = NewElement("materialref");
468  materialrefElement->setAttributeNode(NewAttribute("ref",materialref));
469  volumeElement->appendChild(materialrefElement);
470  xercesc::DOMElement* solidrefElement = NewElement("solidref");
471  solidrefElement->setAttributeNode(NewAttribute("ref",solidref));
472  volumeElement->appendChild(solidrefElement);
473 
474  const G4int daughterCount = volumePtr->GetNoDaughters();
475 
476  for (G4int i=0;i<daughterCount;i++) // Traverse all the children!
477  {
478  const G4VPhysicalVolume* const physvol = volumePtr->GetDaughter(i);
479 
480 
481  //jump over the exclusions
482  assert(config);
483  if (config->get_excluded_physical_vol().find(physvol) != config->get_excluded_physical_vol().end())
484  continue;
485 
486 
487  const G4String ModuleName = Modularize(physvol,depth);
488 
489  G4Transform3D daughterR;
490 
491  if (ModuleName.empty()) // Check if subtree requested to be
492  { // a separate module!
493  daughterR = TraverseVolumeTree(physvol->GetLogicalVolume(),depth+1);
494  }
495  else
496  {
497  PHG4GDMLWriteStructure writer(config);
498  daughterR = writer.Write(ModuleName,physvol->GetLogicalVolume(),
499  SchemaLocation,depth+1);
500  }
501 
502  if (const G4PVDivision* const divisionvol
503  = dynamic_cast<const G4PVDivision*>(physvol)) // Is it division?
504  {
505  if (!G4Transform3D::Identity.isNear(invR*daughterR,kRelativePrecision))
506  {
507  G4String ErrorMessage = "Division volume in '" + name
508  + "' can not be related to reflected solid!";
509  G4Exception("PHG4GDMLWriteStructure::TraverseVolumeTree()",
510  "InvalidSetup", FatalException, ErrorMessage);
511  }
512  DivisionvolWrite(volumeElement,divisionvol);
513  } else
514  if (physvol->IsParameterised()) // Is it a paramvol?
515  {
516  if (!G4Transform3D::Identity.isNear(invR*daughterR,kRelativePrecision))
517  {
518  G4String ErrorMessage = "Parameterised volume in '" + name
519  + "' can not be related to reflected solid!";
520  G4Exception("PHG4GDMLWriteStructure::TraverseVolumeTree()",
521  "InvalidSetup", FatalException, ErrorMessage);
522  }
523  ParamvolWrite(volumeElement,physvol);
524  } else
525  if (physvol->IsReplicated()) // Is it a replicavol?
526  {
527  if (!G4Transform3D::Identity.isNear(invR*daughterR,kRelativePrecision))
528  {
529  G4String ErrorMessage = "Replica volume in '" + name
530  + "' can not be related to reflected solid!";
531  G4Exception("PHG4GDMLWriteStructure::TraverseVolumeTree()",
532  "InvalidSetup", FatalException, ErrorMessage);
533  }
534  ReplicavolWrite(volumeElement,physvol);
535  }
536  else // Is it a physvol?
537  {
538  G4RotationMatrix rot;
539  if (physvol->GetFrameRotation() != 0)
540  {
541  rot = *(physvol->GetFrameRotation());
542  }
543  G4Transform3D P(rot,physvol->GetObjectTranslation());
544 
545  PhysvolWrite(volumeElement,physvol,invR*P*daughterR,ModuleName);
546  }
547  BorderSurfaceCache(GetBorderSurface(physvol));
548  }
549 
550  if (cexport) { ExportEnergyCuts(volumePtr); }
551  // Add optional energy cuts
552 
553  // Here write the auxiliary info
554  //
555  auxiter = auxmap.find(volumePtr);
556  if (auxiter != auxmap.end())
557  {
558  AddAuxInfo(&(auxiter->second), volumeElement);
559  }
560 
561  structureElement->appendChild(volumeElement);
562  // Append the volume AFTER traversing the children so that
563  // the order of volumes will be correct!
564 
565  VolumeMap()[tmplv] = R;
566 
567  AddExtension(volumeElement, volumePtr);
568  // Add any possible user defined extension attached to a volume
569 
570  AddMaterial(volumePtr->GetMaterial());
571  // Add the involved materials and solids!
572 
573  AddSolid(solidPtr);
574 
575  SkinSurfaceCache(GetSkinSurface(volumePtr));
576 
577  return R;
578 }
579 
580 void
581 PHG4GDMLWriteStructure::AddVolumeAuxiliary(PHG4GDMLAuxStructType myaux,
582  const G4LogicalVolume* const lvol)
583 {
584  std::map<const G4LogicalVolume*,
585  PHG4GDMLAuxListType>::iterator pos = auxmap.find(lvol);
586 
587  if (pos == auxmap.end()) { auxmap[lvol] = PHG4GDMLAuxListType(); }
588 
589  auxmap[lvol].push_back(myaux);
590 }
591 
592 void
593 PHG4GDMLWriteStructure::SetEnergyCutsExport(G4bool fcuts)
594 {
595  cexport = fcuts;
596 }
597 
598 void
599 PHG4GDMLWriteStructure::ExportEnergyCuts(const G4LogicalVolume* const lvol)
600 {
601 // PHG4GDMLEvaluator eval;
602  G4ProductionCuts* pcuts = lvol->GetRegion()->GetProductionCuts();
603  G4ProductionCutsTable* ctab = G4ProductionCutsTable::GetProductionCutsTable();
604  G4Gamma* gamma = G4Gamma::Gamma();
605  G4Electron* eminus = G4Electron::Electron();
606  G4Positron* eplus = G4Positron::Positron();
607  G4Proton* proton = G4Proton::Proton();
608 
609  G4double gamma_cut = ctab->ConvertRangeToEnergy(gamma, lvol->GetMaterial(),
610  pcuts->GetProductionCut("gamma"));
611  G4double eminus_cut = ctab->ConvertRangeToEnergy(eminus, lvol->GetMaterial(),
612  pcuts->GetProductionCut("e-"));
613  G4double eplus_cut = ctab->ConvertRangeToEnergy(eplus, lvol->GetMaterial(),
614  pcuts->GetProductionCut("e+"));
615  G4double proton_cut = ctab->ConvertRangeToEnergy(proton, lvol->GetMaterial(),
616  pcuts->GetProductionCut("proton"));
617 
618  PHG4GDMLAuxStructType gammainfo = {"gammaECut",
619  ConvertToString(gamma_cut), "MeV", 0};
620  PHG4GDMLAuxStructType eminusinfo = {"electronECut",
621  ConvertToString(eminus_cut), "MeV", 0};
622  PHG4GDMLAuxStructType eplusinfo = {"positronECut",
623  ConvertToString(eplus_cut), "MeV", 0};
624  PHG4GDMLAuxStructType protinfo = {"protonECut",
625  ConvertToString(proton_cut), "MeV", 0};
626 
627  AddVolumeAuxiliary(gammainfo, lvol);
628  AddVolumeAuxiliary(eminusinfo, lvol);
629  AddVolumeAuxiliary(eplusinfo, lvol);
630  AddVolumeAuxiliary(protinfo, lvol);
631 }
632 
633 G4String PHG4GDMLWriteStructure::ConvertToString(G4double dval)
634 {
635  std::ostringstream os;
636  os << dval;
637  G4String vl = os.str();
638  return vl;
639 }
640