Geant4  10.03.p02
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G4VTreeSceneHandler.cc
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27 // $Id: G4VTreeSceneHandler.cc 85582 2014-10-31 09:07:30Z gcosmo $
28 //
29 //
30 // John Allison 5th April 2001
31 // A base class for a scene handler to dump geometry hierarchy.
32 // Based on a provisional G4VTreeGraphicsScene (was in modeling).
33 
34 #include "G4VTreeSceneHandler.hh"
35 
36 #include "G4VSolid.hh"
37 #include "G4PhysicalVolumeModel.hh"
38 #include "G4VPhysicalVolume.hh"
39 #include "G4LogicalVolume.hh"
40 
42 // Counter for Tree scene handlers.
43 
45  const G4String& name):
46  G4VSceneHandler(system, fSceneIdCount++, name),
47  fpCurrentObjectTransformation (0)
48 {}
49 
51 
53  G4VSceneHandler::BeginModeling(); // Required: see G4VSceneHandler.hh.
54 }
55 
57  fDrawnLVStore.clear();
58  G4VSceneHandler::EndModeling(); // Required: see G4VSceneHandler.hh.
59 }
60 
62 (const G4Transform3D& objectTransformation, const G4VisAttributes& visAttribs)
63 {
64  G4VSceneHandler::PreAddSolid (objectTransformation, visAttribs);
65 
66  G4PhysicalVolumeModel* pPVModel =
67  dynamic_cast<G4PhysicalVolumeModel*>(fpModel);
68  if (!pPVModel) return; // Not from a G4PhysicalVolumeModel.
69 
70  // This call comes from a G4PhysicalVolumeModel, drawnPVPath is
71  // the path of the current drawn (non-culled) volume in terms of
72  // drawn (non-culled) ancesters. Each node is identified by a
73  // PVNodeID object, which is a physical volume and copy number. It
74  // is a vector of PVNodeIDs corresponding to the geometry hierarchy
75  // actually selected, i.e., not culled.
77  typedef std::vector<PVNodeID> PVPath;
78  const PVPath& drawnPVPath = pPVModel->GetDrawnPVPath();
79  //G4int currentDepth = pPVModel->GetCurrentDepth();
80  //G4VPhysicalVolume* pCurrentPV = pPVModel->GetCurrentPV();
81  //G4LogicalVolume* pCurrentLV = pPVModel->GetCurrentLV();
82  //G4Material* pCurrentMaterial = pPVModel->GetCurrentMaterial();
83 
84  // Actually, it is enough to store the logical volume of current
85  // physical volume...
86  fDrawnLVStore.insert
87  (drawnPVPath.back().GetPhysicalVolume()->GetLogicalVolume());
88 
89  // Find mother. ri points to drawn mother, if any.
90  PVPath::const_reverse_iterator ri = ++drawnPVPath.rbegin();
91  if (ri != drawnPVPath.rend()) {
92  // This volume has a mother.
93  G4LogicalVolume* drawnMotherLV =
94  ri->GetPhysicalVolume()->GetLogicalVolume();
95  if (fDrawnLVStore.find(drawnMotherLV) != fDrawnLVStore.end()) {
96  // Mother previously encountered. Add this volume to
97  // appropriate node in scene graph tree.
98  // ...
99  } else {
100  // Mother not previously encountered. Shouldn't happen, since
101  // G4PhysicalVolumeModel sends volumes as it encounters them,
102  // i.e., mothers before daughters, in its descent of the
103  // geometry tree. Error!
104  G4cerr << "ERROR: G4XXXSceneHandler::PreAddSolid: Mother "
105  << ri->GetPhysicalVolume()->GetName()
106  << ':' << ri->GetCopyNo()
107  << " not previously encountered."
108  "\nShouldn't happen! Please report to visualization coordinator."
109  << G4endl;
110  // Continue anyway. Add to root of scene graph tree.
111  // ...
112  }
113  } else {
114  // This volume has no mother. Must be a top level un-culled
115  // volume. Add to root of scene graph tree.
116  // ...
117  }
118 }
const XML_Char * name
Definition: expat.h:151
virtual void BeginModeling()
std::set< G4LogicalVolume * > fDrawnLVStore
const std::vector< G4PhysicalVolumeNodeID > & GetDrawnPVPath() const
int G4int
Definition: G4Types.hh:78
G4PhysicalVolumeModel::G4PhysicalVolumeNodeID PVNodeID
virtual void EndModeling()
std::vector< PVNodeID > PVPath
G4VTreeSceneHandler(G4VGraphicsSystem &system, const G4String &name)
virtual void EndModeling()
virtual void PreAddSolid(const G4Transform3D &objectTransformation, const G4VisAttributes &)
void PreAddSolid(const G4Transform3D &objectTransformation, const G4VisAttributes &)
#define G4endl
Definition: G4ios.hh:61
virtual void BeginModeling()
G4GLOB_DLL std::ostream G4cerr