Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/visualization/VRML/src/G4VRML2FileViewer.cc

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Diff markup

Differences between /visualization/VRML/src/G4VRML2FileViewer.cc (Version 11.3.0) and /visualization/VRML/src/G4VRML2FileViewer.cc (Version ReleaseNotes)


** Warning: Cannot open xref database.

  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 //                                                
 27 //                                                
 28 // G4VRML2FileViewer.cc                           
 29 // Satoshi Tanaka & Yasuhide Sawada               
 30                                                   
 31 //#define DEBUG_FR_VIEW                           
 32                                                   
 33 #include <cmath>                                  
 34                                                   
 35 #include "G4VisManager.hh"                        
 36 #include "G4Scene.hh"                             
 37 #include "G4VRML2FileViewer.hh"                   
 38 #include "G4VRML2FileSceneHandler.hh"             
 39 #include "G4VRML2File.hh"                         
 40 #include "G4SystemOfUnits.hh"                     
 41 #include "G4ios.hh"                               
 42                                                   
 43 G4VRML2FileViewer::G4VRML2FileViewer(G4VRML2Fi    
 44                                      const G4S    
 45   : G4VViewer(sceneHandler, sceneHandler.Incre    
 46   , fSceneHandler(sceneHandler)                   
 47   , fDest(sceneHandler.fDest)                     
 48 {                                                 
 49   fViewHalfAngle = 30. * deg;                     
 50   fsin_VHA       = std::sin(fViewHalfAngle);      
 51 }                                                 
 52                                                   
 53 G4VRML2FileViewer::~G4VRML2FileViewer() {}        
 54                                                   
 55 void G4VRML2FileViewer::SetView()                 
 56 {                                                 
 57 #if defined DEBUG_FR_VIEW                         
 58   if(G4VisManager::GetVerbosity() >= G4VisMana    
 59     G4cout << "***** G4VRML2FileViewer::SetVie    
 60 #endif                                            
 61                                                   
 62   // Do nothing, since VRML a browser is runni    
 63   // SendViewParameters () will do this job in    
 64 }                                                 
 65                                                   
 66 void G4VRML2FileViewer::DrawView()                
 67 {                                                 
 68 #if defined DEBUG_FR_VIEW                         
 69   if(G4VisManager::GetVerbosity() >= G4VisMana    
 70     G4cout << "***** G4VRML2FileViewer::DrawVi    
 71 #endif                                            
 72                                                   
 73   fSceneHandler.VRMLBeginModeling();              
 74                                                   
 75   // Viewpoint node                               
 76   SendViewParameters();                           
 77                                                   
 78   // Here is a minimal DrawView() function.       
 79   NeedKernelVisit();                              
 80   ProcessView();                                  
 81   FinishView();                                   
 82 }                                                 
 83                                                   
 84 void G4VRML2FileViewer::ClearView(void)           
 85 {                                                 
 86 #if defined DEBUG_FR_VIEW                         
 87   if(G4VisManager::GetVerbosity() >= G4VisMana    
 88     G4cout << "***** G4VRML2File1View::ClearVi    
 89 #endif                                            
 90   if(fSceneHandler.fFlagDestOpen)                 
 91   {                                               
 92     fSceneHandler.fDest.close();                  
 93     // Re-open with same filename...              
 94     fSceneHandler.fDest.open(fSceneHandler.fVR    
 95     fSceneHandler.fDest << "#VRML V2.0 utf8"      
 96                         << "\n";                  
 97     fSceneHandler.fDest << "# Generated by VRM    
 98                         << "\n";                  
 99   }                                               
100 }                                                 
101                                                   
102 void G4VRML2FileViewer::ShowView(void)            
103 {                                                 
104 #if defined DEBUG_FR_VIEW                         
105   if(G4VisManager::GetVerbosity() >= G4VisMana    
106     G4cout << "***** G4VRML2FileViewer::ShowVi    
107 #endif                                            
108   fSceneHandler.VRMLEndModeling();                
109 }                                                 
110                                                   
111 void G4VRML2FileViewer::FinishView(void)          
112 {                                                 
113 #if defined DEBUG_FR_VIEW                         
114   if(G4VisManager::GetVerbosity() >= G4VisMana    
115     G4cout << "***** G4VRML2FileViewer::Finish    
116 #endif                                            
117 }                                                 
118                                                   
119 void G4VRML2FileViewer::SendViewParameters()      
120 {                                                 
121   // Calculates view representation based on e    
122   // viewed and (initial) direction of camera.    
123   // later due to user interaction via visuali    
124                                                   
125 #if defined DEBUG_FR_VIEW                         
126   if(G4VisManager::GetVerbosity() >= G4VisMana    
127     G4cout << "***** G4VRML2FileViewer::SendVi    
128 #endif                                            
129                                                   
130   // error recovery                               
131   if(fsin_VHA < 1.0e-6)                           
132   {                                               
133     return;                                       
134   }                                               
135                                                   
136   // camera distance                              
137   G4double extent_radius =                        
138     fSceneHandler.GetScene()->GetExtent().GetE    
139   G4double camera_distance = extent_radius / f    
140                                                   
141   // camera position on Z axis                    
142   const G4Point3D& target_point =                 
143     fSceneHandler.GetScene()->GetStandardTarge    
144     fVP.GetCurrentTargetPoint();                  
145   G4double E_z = target_point.z() + camera_dis    
146   G4Point3D E(0.0, 0.0, E_z);                     
147                                                   
148   // VRML codes are generated below               
149   fDest << G4endl;                                
150   fDest << "#---------- CAMERA" << G4endl;        
151   fDest << "Viewpoint {" << G4endl;               
152   fDest << "\t"                                   
153         << "position ";                           
154   fDest << E.x() << " ";                          
155   fDest << E.y() << " ";                          
156   fDest << E.z() << G4endl;                       
157   fDest << "}" << G4endl;                         
158   fDest << G4endl;                                
159 }                                                 
160