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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
>> 27 // $Id: G4RayTracerViewer.cc,v 1.17 2007/01/05 17:05:11 allison Exp $
>> 28 // GEANT4 tag $Name: geant4-08-03-patch-01 $
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 { <<
62 if (!theTracer) { <<
63 G4warn << "G4RayTracerViewer::Initialise: <<
64 fViewId = -1; // This flags an error. <<
65 return; <<
66 } <<
67 } <<
68 <<
69 G4RayTracerViewer::~G4RayTracerViewer() {} <<
70 <<
71 void G4RayTracerViewer::Initialise() <<
72 { 46 {
>> 47 theTracer = aTracer;
>> 48 if (!aTracer) theTracer = new G4TheRayTracer;
73 theTracer->SetNColumn(fVP.GetWindowSizeHintX 49 theTracer->SetNColumn(fVP.GetWindowSizeHintX());
74 theTracer->SetNRow(fVP.GetWindowSizeHintY()) 50 theTracer->SetNRow(fVP.GetWindowSizeHintY());
75 } 51 }
76 52
>> 53 G4RayTracerViewer::~G4RayTracerViewer() {}
>> 54
77 void G4RayTracerViewer::SetView() 55 void G4RayTracerViewer::SetView()
78 { 56 {
79 // Get radius of scene, etc. (See G4OpenGLV 57 // Get radius of scene, etc. (See G4OpenGLViewer::SetView().)
80 // Note that this procedure properly takes i 58 // Note that this procedure properly takes into account zoom, dolly and pan.
81 const G4Point3D& targetPoint 59 const G4Point3D& targetPoint
82 = fSceneHandler.GetScene()->GetStandardTar 60 = fSceneHandler.GetScene()->GetStandardTargetPoint()
83 + fVP.GetCurrentTargetPoint(); 61 + fVP.GetCurrentTargetPoint();
84 G4double radius = // See G4ViewParameters f 62 G4double radius = // See G4ViewParameters for following procedure.
85 fSceneHandler.GetScene()->GetExtent().GetE 63 fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
86 if(radius<=0.) radius = 1.; 64 if(radius<=0.) radius = 1.;
87 const G4double cameraDistance = fVP.GetCamer 65 const G4double cameraDistance = fVP.GetCameraDistance(radius);
88 const G4Point3D cameraPosition = 66 const G4Point3D cameraPosition =
89 targetPoint + cameraDistance * fVP.GetView 67 targetPoint + cameraDistance * fVP.GetViewpointDirection().unit();
90 const G4double nearDistance = fVP.GetNearDi 68 const G4double nearDistance = fVP.GetNearDistance(cameraDistance,radius);
91 const G4double frontHalfHeight = fVP.GetFron 69 const G4double frontHalfHeight = fVP.GetFrontHalfHeight(nearDistance,radius);
92 const G4double frontHalfAngle = std::atan(fr 70 const G4double frontHalfAngle = std::atan(frontHalfHeight / nearDistance);
93 71
94 // Calculate and set ray tracer parameters. 72 // Calculate and set ray tracer parameters.
95 theTracer-> 73 theTracer->
96 SetViewSpan(200. * frontHalfAngle / theTra 74 SetViewSpan(200. * frontHalfAngle / theTracer->GetNColumn());
97 theTracer->SetTargetPosition(targetPoint); 75 theTracer->SetTargetPosition(targetPoint);
98 theTracer->SetEyePosition(cameraPosition); 76 theTracer->SetEyePosition(cameraPosition);
99 theTracer->SetUpVector(fVP.GetUpVector()); << 77 theTracer->SetHeadAngle(fVP.GetViewpointDirection().phi());
100 const G4Vector3D 78 const G4Vector3D
101 actualLightpointDirection(-fVP.GetActualLi 79 actualLightpointDirection(-fVP.GetActualLightpointDirection());
102 theTracer->SetLightDirection(actualLightpoin 80 theTracer->SetLightDirection(actualLightpointDirection);
103 theTracer->SetBackgroundColour(fVP.GetBackgr 81 theTracer->SetBackgroundColour(fVP.GetBackgroundColour());
>> 82 theTracer->SetNColumn(fVP.GetWindowSizeHintX());
>> 83 theTracer->SetNRow(fVP.GetWindowSizeHintY());
104 } 84 }
105 85
106 86
107 void G4RayTracerViewer::ClearView() {} 87 void G4RayTracerViewer::ClearView() {}
108 88
109 void G4RayTracerViewer::DrawView() 89 void G4RayTracerViewer::DrawView()
110 { 90 {
111 // Trap recursive call <<
112 static G4bool called = false; <<
113 if (called) return; <<
114 called = true; <<
115 <<
116 if (fVP.GetFieldHalfAngle() == 0.) { // Orth 91 if (fVP.GetFieldHalfAngle() == 0.) { // Orthogonal (parallel) projection.
117 G4double fieldHalfAngle = perMillion; 92 G4double fieldHalfAngle = perMillion;
118 fVP.SetFieldHalfAngle(fieldHalfAngle); 93 fVP.SetFieldHalfAngle(fieldHalfAngle);
119 G4warn << << 94 G4cout <<
120 "WARNING: G4RayTracerViewer::DrawView: t 95 "WARNING: G4RayTracerViewer::DrawView: true orthogonal projection"
121 "\n not yet implemented. Doing a \"lon 96 "\n not yet implemented. Doing a \"long shot\", i.e., a perspective"
122 "\n projection with a half field angle 97 "\n projection with a half field angle of "
123 << fieldHalfAngle << 98 << fieldHalfAngle <<
124 " radians." 99 " radians."
125 << G4endl; 100 << G4endl;
126 SetView(); // With this fieldHalfAngle << 101 SetView(); // Special graphics system - bypass ProcessView().
127 ProcessView(); <<
128 fVP.SetFieldHalfAngle(0.); 102 fVP.SetFieldHalfAngle(0.);
129 } 103 }
130 else { 104 else {
131 ProcessView(); << 105 SetView(); // Special graphics system - bypass ProcessView().
132 } 106 }
133 std::ostringstream filename; 107 std::ostringstream filename;
134 filename << "g4RayTracer." << fShortName << << 108 filename << "g4RayTracer." << fShortName << '_' << fFileCount++ << ".jpeg";
135 << std::setw(4) << std::setfill('0') << fFil <<
136 theTracer->Trace(filename.str()); 109 theTracer->Trace(filename.str());
137 <<
138 // Reset call flag <<
139 called = false; <<
140 } 110 }
141 111