Geant4  10.03.p02
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4OpenGLImmediateViewer.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4OpenGLImmediateViewer.cc 66373 2012-12-18 09:41:34Z gcosmo $
28 //
29 //
30 // Andrew Walkden 7th February 1997
31 // Class G4OpenGLImmediateViewer : Encapsulates the `immediateness' of
32 // an OpenGL view, for inheritance by
33 // derived (X, Xm...) classes.
34 
35 #ifdef G4VIS_BUILD_OPENGL_DRIVER
36 
39 
40 G4OpenGLImmediateViewer::G4OpenGLImmediateViewer (G4OpenGLImmediateSceneHandler& scene):
41 G4VViewer (scene, -1),
42 G4OpenGLViewer (scene)
43 {}
44 
45 void G4OpenGLImmediateViewer::ProcessView ()
46 {
47  const G4Planes& cutaways = fVP.GetCutawayPlanes();
48  G4bool cutawayUnion = fVP.IsCutaway() &&
49  fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion;
50  size_t nPasses = cutawayUnion? cutaways.size(): 1;
51  for (size_t i = 0; i < nPasses; ++i) {
52 
53  if (cutawayUnion) {
54  double a[4];
55  a[0] = cutaways[i].a();
56  a[1] = cutaways[i].b();
57  a[2] = cutaways[i].c();
58  a[3] = cutaways[i].d();
59  glClipPlane (GL_CLIP_PLANE2, a);
60  glEnable (GL_CLIP_PLANE2);
61  }
62 
63  NeedKernelVisit (); // Always need to visit G4 kernel.
65 
66  if (cutawayUnion) glDisable (GL_CLIP_PLANE2);
67  }
68 }
69 
70 #endif
std::vector< ExP01TrackerHit * > a
Definition: ExP01Classes.hh:33
bool G4bool
Definition: G4Types.hh:79
std::vector< G4Plane3D > G4Planes
void ProcessView()
Definition: G4VViewer.cc:105