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1 // 1 //
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25 // 25 //
26 // 26 //
>> 27 // $Id: G4RayTracerViewer.cc,v 1.18 2009-08-19 08:39:19 lgarnier Exp $
>> 28 // GEANT4 tag $Name: geant4-09-04-patch-02 $
27 29
28 #include "G4RayTracerViewer.hh" 30 #include "G4RayTracerViewer.hh"
29 31
30 #include "G4ios.hh" 32 #include "G4ios.hh"
31 #include <sstream> 33 #include <sstream>
32 #include <iomanip> <<
33 <<
34 #include "G4SystemOfUnits.hh" <<
35 34
36 #include "G4VSceneHandler.hh" 35 #include "G4VSceneHandler.hh"
37 #include "G4Scene.hh" 36 #include "G4Scene.hh"
38 #ifdef G4MULTITHREADED <<
39 #include "G4TheMTRayTracer.hh" <<
40 #else <<
41 #include "G4TheRayTracer.hh" 37 #include "G4TheRayTracer.hh"
42 #endif <<
43 #include "G4RTJpegMaker.hh" <<
44 #include "G4RTSimpleScanner.hh" <<
45 #include "G4UImanager.hh" 38 #include "G4UImanager.hh"
46 39
47 #define G4warn G4cout <<
48 <<
49 G4RayTracerViewer::G4RayTracerViewer 40 G4RayTracerViewer::G4RayTracerViewer
50 (G4VSceneHandler& sceneHandler, 41 (G4VSceneHandler& sceneHandler,
51 const G4String& name, 42 const G4String& name,
52 G4TheRayTracer* aTracer) << 43 G4TheRayTracer* aTracer):
53 : G4VViewer(sceneHandler, sceneHandler.Increme << 44 G4VViewer(sceneHandler, sceneHandler.IncrementViewCount(), name),
54 , fFileCount(0) << 45 fFileCount(0)
55 #ifdef G4MULTITHREADED <<
56 #include "G4TheMTRayTracer.hh" <<
57 , theTracer(aTracer? aTracer: G4TheMTRayTracer <<
58 #else <<
59 , theTracer(aTracer? aTracer: new G4TheRayTrac <<
60 #endif <<
61 { 46 {
62 if (!theTracer) { << 47 theTracer = aTracer;
63 G4warn << "G4RayTracerViewer::Initialise: << 48 if (!aTracer) theTracer = new G4TheRayTracer;
64 fViewId = -1; // This flags an error. <<
65 return; <<
66 } <<
67 } 49 }
68 50
69 G4RayTracerViewer::~G4RayTracerViewer() {} 51 G4RayTracerViewer::~G4RayTracerViewer() {}
70 52
71 void G4RayTracerViewer::Initialise() <<
72 { <<
73 theTracer->SetNColumn(fVP.GetWindowSizeHintX <<
74 theTracer->SetNRow(fVP.GetWindowSizeHintY()) <<
75 } <<
76 <<
77 void G4RayTracerViewer::SetView() 53 void G4RayTracerViewer::SetView()
78 { 54 {
79 // Get radius of scene, etc. (See G4OpenGLV 55 // Get radius of scene, etc. (See G4OpenGLViewer::SetView().)
80 // Note that this procedure properly takes i 56 // Note that this procedure properly takes into account zoom, dolly and pan.
81 const G4Point3D& targetPoint 57 const G4Point3D& targetPoint
82 = fSceneHandler.GetScene()->GetStandardTar 58 = fSceneHandler.GetScene()->GetStandardTargetPoint()
83 + fVP.GetCurrentTargetPoint(); 59 + fVP.GetCurrentTargetPoint();
84 G4double radius = // See G4ViewParameters f 60 G4double radius = // See G4ViewParameters for following procedure.
85 fSceneHandler.GetScene()->GetExtent().GetE 61 fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
86 if(radius<=0.) radius = 1.; 62 if(radius<=0.) radius = 1.;
87 const G4double cameraDistance = fVP.GetCamer 63 const G4double cameraDistance = fVP.GetCameraDistance(radius);
88 const G4Point3D cameraPosition = 64 const G4Point3D cameraPosition =
89 targetPoint + cameraDistance * fVP.GetView 65 targetPoint + cameraDistance * fVP.GetViewpointDirection().unit();
90 const G4double nearDistance = fVP.GetNearDi 66 const G4double nearDistance = fVP.GetNearDistance(cameraDistance,radius);
91 const G4double frontHalfHeight = fVP.GetFron 67 const G4double frontHalfHeight = fVP.GetFrontHalfHeight(nearDistance,radius);
92 const G4double frontHalfAngle = std::atan(fr 68 const G4double frontHalfAngle = std::atan(frontHalfHeight / nearDistance);
93 69
94 // Calculate and set ray tracer parameters. 70 // Calculate and set ray tracer parameters.
95 theTracer-> 71 theTracer->
96 SetViewSpan(200. * frontHalfAngle / theTra 72 SetViewSpan(200. * frontHalfAngle / theTracer->GetNColumn());
97 theTracer->SetTargetPosition(targetPoint); 73 theTracer->SetTargetPosition(targetPoint);
98 theTracer->SetEyePosition(cameraPosition); 74 theTracer->SetEyePosition(cameraPosition);
99 theTracer->SetUpVector(fVP.GetUpVector()); << 75 theTracer->SetHeadAngle(fVP.GetViewpointDirection().phi());
100 const G4Vector3D 76 const G4Vector3D
101 actualLightpointDirection(-fVP.GetActualLi 77 actualLightpointDirection(-fVP.GetActualLightpointDirection());
102 theTracer->SetLightDirection(actualLightpoin 78 theTracer->SetLightDirection(actualLightpointDirection);
103 theTracer->SetBackgroundColour(fVP.GetBackgr 79 theTracer->SetBackgroundColour(fVP.GetBackgroundColour());
>> 80 theTracer->SetNColumn(fVP.GetWindowSizeHintX());
>> 81 theTracer->SetNRow(fVP.GetWindowSizeHintY());
104 } 82 }
105 83
106 84
107 void G4RayTracerViewer::ClearView() {} 85 void G4RayTracerViewer::ClearView() {}
108 86
109 void G4RayTracerViewer::DrawView() 87 void G4RayTracerViewer::DrawView()
110 { 88 {
111 // Trap recursive call 89 // Trap recursive call
112 static G4bool called = false; 90 static G4bool called = false;
113 if (called) return; 91 if (called) return;
114 called = true; 92 called = true;
115 93
116 if (fVP.GetFieldHalfAngle() == 0.) { // Orth 94 if (fVP.GetFieldHalfAngle() == 0.) { // Orthogonal (parallel) projection.
117 G4double fieldHalfAngle = perMillion; 95 G4double fieldHalfAngle = perMillion;
118 fVP.SetFieldHalfAngle(fieldHalfAngle); 96 fVP.SetFieldHalfAngle(fieldHalfAngle);
119 G4warn << << 97 G4cout <<
120 "WARNING: G4RayTracerViewer::DrawView: t 98 "WARNING: G4RayTracerViewer::DrawView: true orthogonal projection"
121 "\n not yet implemented. Doing a \"lon 99 "\n not yet implemented. Doing a \"long shot\", i.e., a perspective"
122 "\n projection with a half field angle 100 "\n projection with a half field angle of "
123 << fieldHalfAngle << 101 << fieldHalfAngle <<
124 " radians." 102 " radians."
125 << G4endl; 103 << G4endl;
126 SetView(); // With this fieldHalfAngle << 104 SetView(); // Special graphics system - bypass ProcessView().
127 ProcessView(); <<
128 fVP.SetFieldHalfAngle(0.); 105 fVP.SetFieldHalfAngle(0.);
129 } 106 }
130 else { 107 else {
131 ProcessView(); << 108 SetView(); // Special graphics system - bypass ProcessView().
132 } 109 }
133 std::ostringstream filename; 110 std::ostringstream filename;
134 filename << "g4RayTracer." << fShortName << << 111 filename << "g4RayTracer." << fShortName << '_' << fFileCount++ << ".jpeg";
135 << std::setw(4) << std::setfill('0') << fFil <<
136 theTracer->Trace(filename.str()); 112 theTracer->Trace(filename.str());
137 113
138 // Reset call flag 114 // Reset call flag
139 called = false; 115 called = false;
140 } 116 }
141 117