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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
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17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 27
28 #include "G4RayTracerViewer.hh" 28 #include "G4RayTracerViewer.hh"
29 29
30 #include "G4ios.hh" 30 #include "G4ios.hh"
31 #include <sstream> 31 #include <sstream>
32 #include <iomanip> 32 #include <iomanip>
33 33
34 #include "G4SystemOfUnits.hh" 34 #include "G4SystemOfUnits.hh"
35 35
36 #include "G4VSceneHandler.hh" 36 #include "G4VSceneHandler.hh"
37 #include "G4Scene.hh" 37 #include "G4Scene.hh"
38 #ifdef G4MULTITHREADED <<
39 #include "G4TheMTRayTracer.hh" <<
40 #else <<
41 #include "G4TheRayTracer.hh" 38 #include "G4TheRayTracer.hh"
42 #endif <<
43 #include "G4RTJpegMaker.hh" <<
44 #include "G4RTSimpleScanner.hh" <<
45 #include "G4UImanager.hh" 39 #include "G4UImanager.hh"
46 40
47 #define G4warn G4cout <<
48 <<
49 G4RayTracerViewer::G4RayTracerViewer 41 G4RayTracerViewer::G4RayTracerViewer
50 (G4VSceneHandler& sceneHandler, 42 (G4VSceneHandler& sceneHandler,
51 const G4String& name, 43 const G4String& name,
52 G4TheRayTracer* aTracer) 44 G4TheRayTracer* aTracer)
53 : G4VViewer(sceneHandler, sceneHandler.Increme 45 : G4VViewer(sceneHandler, sceneHandler.IncrementViewCount(), name)
54 , fFileCount(0) 46 , fFileCount(0)
55 #ifdef G4MULTITHREADED << 47 , theTracer(aTracer)
56 #include "G4TheMTRayTracer.hh" <<
57 , theTracer(aTracer? aTracer: G4TheMTRayTracer <<
58 #else <<
59 , theTracer(aTracer? aTracer: new G4TheRayTrac <<
60 #endif <<
61 { 48 {
62 if (!theTracer) { 49 if (!theTracer) {
63 G4warn << "G4RayTracerViewer::Initialise: << 50 G4cerr << "G4RayTracerViewer::Initialise: No tracer" << G4endl;
64 fViewId = -1; // This flags an error. 51 fViewId = -1; // This flags an error.
65 return; 52 return;
66 } 53 }
67 } 54 }
68 55
69 G4RayTracerViewer::~G4RayTracerViewer() {} 56 G4RayTracerViewer::~G4RayTracerViewer() {}
70 57
71 void G4RayTracerViewer::Initialise() 58 void G4RayTracerViewer::Initialise()
72 { 59 {
73 theTracer->SetNColumn(fVP.GetWindowSizeHintX 60 theTracer->SetNColumn(fVP.GetWindowSizeHintX());
74 theTracer->SetNRow(fVP.GetWindowSizeHintY()) 61 theTracer->SetNRow(fVP.GetWindowSizeHintY());
75 } 62 }
76 63
77 void G4RayTracerViewer::SetView() 64 void G4RayTracerViewer::SetView()
78 { 65 {
79 // Get radius of scene, etc. (See G4OpenGLV 66 // Get radius of scene, etc. (See G4OpenGLViewer::SetView().)
80 // Note that this procedure properly takes i 67 // Note that this procedure properly takes into account zoom, dolly and pan.
81 const G4Point3D& targetPoint 68 const G4Point3D& targetPoint
82 = fSceneHandler.GetScene()->GetStandardTar 69 = fSceneHandler.GetScene()->GetStandardTargetPoint()
83 + fVP.GetCurrentTargetPoint(); 70 + fVP.GetCurrentTargetPoint();
84 G4double radius = // See G4ViewParameters f 71 G4double radius = // See G4ViewParameters for following procedure.
85 fSceneHandler.GetScene()->GetExtent().GetE 72 fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
86 if(radius<=0.) radius = 1.; 73 if(radius<=0.) radius = 1.;
87 const G4double cameraDistance = fVP.GetCamer 74 const G4double cameraDistance = fVP.GetCameraDistance(radius);
88 const G4Point3D cameraPosition = 75 const G4Point3D cameraPosition =
89 targetPoint + cameraDistance * fVP.GetView 76 targetPoint + cameraDistance * fVP.GetViewpointDirection().unit();
90 const G4double nearDistance = fVP.GetNearDi 77 const G4double nearDistance = fVP.GetNearDistance(cameraDistance,radius);
91 const G4double frontHalfHeight = fVP.GetFron 78 const G4double frontHalfHeight = fVP.GetFrontHalfHeight(nearDistance,radius);
92 const G4double frontHalfAngle = std::atan(fr 79 const G4double frontHalfAngle = std::atan(frontHalfHeight / nearDistance);
93 80
94 // Calculate and set ray tracer parameters. 81 // Calculate and set ray tracer parameters.
95 theTracer-> 82 theTracer->
96 SetViewSpan(200. * frontHalfAngle / theTra 83 SetViewSpan(200. * frontHalfAngle / theTracer->GetNColumn());
97 theTracer->SetTargetPosition(targetPoint); 84 theTracer->SetTargetPosition(targetPoint);
98 theTracer->SetEyePosition(cameraPosition); 85 theTracer->SetEyePosition(cameraPosition);
99 theTracer->SetUpVector(fVP.GetUpVector()); 86 theTracer->SetUpVector(fVP.GetUpVector());
100 const G4Vector3D 87 const G4Vector3D
101 actualLightpointDirection(-fVP.GetActualLi 88 actualLightpointDirection(-fVP.GetActualLightpointDirection());
102 theTracer->SetLightDirection(actualLightpoin 89 theTracer->SetLightDirection(actualLightpointDirection);
103 theTracer->SetBackgroundColour(fVP.GetBackgr 90 theTracer->SetBackgroundColour(fVP.GetBackgroundColour());
104 } 91 }
105 92
106 93
107 void G4RayTracerViewer::ClearView() {} 94 void G4RayTracerViewer::ClearView() {}
108 95
109 void G4RayTracerViewer::DrawView() 96 void G4RayTracerViewer::DrawView()
110 { 97 {
111 // Trap recursive call 98 // Trap recursive call
112 static G4bool called = false; 99 static G4bool called = false;
113 if (called) return; 100 if (called) return;
114 called = true; 101 called = true;
115 102
116 if (fVP.GetFieldHalfAngle() == 0.) { // Orth 103 if (fVP.GetFieldHalfAngle() == 0.) { // Orthogonal (parallel) projection.
117 G4double fieldHalfAngle = perMillion; 104 G4double fieldHalfAngle = perMillion;
118 fVP.SetFieldHalfAngle(fieldHalfAngle); 105 fVP.SetFieldHalfAngle(fieldHalfAngle);
119 G4warn << << 106 G4cout <<
120 "WARNING: G4RayTracerViewer::DrawView: t 107 "WARNING: G4RayTracerViewer::DrawView: true orthogonal projection"
121 "\n not yet implemented. Doing a \"lon 108 "\n not yet implemented. Doing a \"long shot\", i.e., a perspective"
122 "\n projection with a half field angle 109 "\n projection with a half field angle of "
123 << fieldHalfAngle << 110 << fieldHalfAngle <<
124 " radians." 111 " radians."
125 << G4endl; 112 << G4endl;
126 SetView(); // With this fieldHalfAngle 113 SetView(); // With this fieldHalfAngle
127 ProcessView(); 114 ProcessView();
128 fVP.SetFieldHalfAngle(0.); 115 fVP.SetFieldHalfAngle(0.);
129 } 116 }
130 else { 117 else {
131 ProcessView(); 118 ProcessView();
132 } 119 }
133 std::ostringstream filename; 120 std::ostringstream filename;
134 filename << "g4RayTracer." << fShortName << 121 filename << "g4RayTracer." << fShortName << '_'
135 << std::setw(4) << std::setfill('0') << fFil 122 << std::setw(4) << std::setfill('0') << fFileCount++ << ".jpeg";
136 theTracer->Trace(filename.str()); 123 theTracer->Trace(filename.str());
137 124
138 // Reset call flag 125 // Reset call flag
139 called = false; 126 called = false;
140 } 127 }
141 128