Import Geant4 2.0.0 source tree

2016-06-08 15:42:07 +02:00
parent 103bda00c8
commit e7d7193284
3106 changed files with 171117 additions and 90550 deletions
@@ -0,0 +1,74 @@
+// This code implementation is the intellectual property of
+// the GEANT4 collaboration.
+//
+// By copying, distributing or modifying the Program (or any work
+// based on the Program) you indicate your acceptance of this statement,
+// and all its terms.
+//
+// $Id: G4RayTracerViewer.cc,v 1.6 2000/05/13 10:55:56 johna Exp $
+// GEANT4 tag $Name: geant4-02-00 $
+
+#include "G4RayTracerViewer.hh"
+
+#include "G4ios.hh"
+#include "g4std/strstream"
+
+#include "G4VSceneHandler.hh"
+#include "G4Scene.hh"
+#include "G4RayTracer.hh"
+#include "G4UImanager.hh"
+
+G4RayTracerViewer::G4RayTracerViewer
+(G4VSceneHandler& sceneHandler, const G4String& name):
+  fFileCount(0),
+  G4VViewer(sceneHandler, sceneHandler.IncrementViewCount(), name) {}
+
+G4RayTracerViewer::~G4RayTracerViewer() {}
+
+void G4RayTracerViewer::SetView() {
+  G4RayTracer* theTracer = 
+    (G4RayTracer*) fSceneHandler.GetGraphicsSystem();
+
+  // Get radius of scene, etc.  (See G4OpenGLViewer::SetView().)
+  // Note that this procedure properly takes into account zoom, dolly and pan.
+  const G4Point3D& targetPoint
+    = fSceneHandler.GetScene()->GetStandardTargetPoint()
+    + fVP.GetCurrentTargetPoint();
+  G4double radius =  // See G4ViewParameters for following procedure.
+    fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
+  if(radius<=0.) radius = 1.;
+  const G4double cameraDistance = fVP.GetCameraDistance(radius);
+  const G4Point3D cameraPosition =
+    targetPoint + cameraDistance * fVP.GetViewpointDirection().unit();
+  const G4double nearDistance  = fVP.GetNearDistance(cameraDistance,radius);
+  const G4double frontHalfHeight = fVP.GetFrontHalfHeight(nearDistance,radius);
+  const G4double frontHalfAngle = atan(frontHalfHeight / nearDistance);
+
+  // Calculate and set ray tracer parameters.
+  theTracer->
+    SetViewSpan(200. * frontHalfAngle / theTracer->GetNColumn());
+  theTracer->SetTargetPosition(targetPoint);
+  theTracer->SetEyePosition(cameraPosition);
+  theTracer->SetHeadAngle(fVP.GetViewpointDirection().phi());
+  theTracer->SetLightDirection(-fVP.GetActualLightpointDirection());
+}
+
+
+void G4RayTracerViewer::ClearView() {}
+
+void G4RayTracerViewer::DrawView() {
+  if (fVP.GetFieldHalfAngle() == 0.) { // Orthogonal (parallel) projection.
+    G4cout << 
+      "G4RayTracerViewer::SetView: orthogonal projection not yet implemented."
+	   << G4endl;
+    return;
+  }
+  SetView();  // Special graphics system - bypass ProcessView().
+  G4RayTracer* theTracer = 
+    (G4RayTracer*) fSceneHandler.GetGraphicsSystem();
+  char fileName [100];
+  G4std::ostrstream ost(fileName, 100);
+  ost << "g4RayTracer." << fShortName << '_' << fFileCount++ << ".jpeg"
+      << G4std::ends;
+  theTracer->Trace(fileName);
+}