00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // 00027 // $Id$ 00028 // 00029 // 00030 // Andrew Walkden 7th February 1997 00031 // Class G4OpenGLImmediateViewer : Encapsulates the `immediateness' of 00032 // an OpenGL view, for inheritance by 00033 // derived (X, Xm...) classes. 00034 00035 #ifdef G4VIS_BUILD_OPENGL_DRIVER 00036 00037 #include "G4OpenGLImmediateViewer.hh" 00038 #include "G4OpenGLImmediateSceneHandler.hh" 00039 00040 G4OpenGLImmediateViewer::G4OpenGLImmediateViewer (G4OpenGLImmediateSceneHandler& scene): 00041 G4VViewer (scene, -1), 00042 G4OpenGLViewer (scene) 00043 {} 00044 00045 void G4OpenGLImmediateViewer::ProcessView () 00046 { 00047 const G4Planes& cutaways = fVP.GetCutawayPlanes(); 00048 G4bool cutawayUnion = fVP.IsCutaway() && 00049 fVP.GetCutawayMode() == G4ViewParameters::cutawayUnion; 00050 size_t nPasses = cutawayUnion? cutaways.size(): 1; 00051 for (size_t i = 0; i < nPasses; ++i) { 00052 00053 if (cutawayUnion) { 00054 double a[4]; 00055 a[0] = cutaways[i].a(); 00056 a[1] = cutaways[i].b(); 00057 a[2] = cutaways[i].c(); 00058 a[3] = cutaways[i].d(); 00059 glClipPlane (GL_CLIP_PLANE2, a); 00060 glEnable (GL_CLIP_PLANE2); 00061 } 00062 00063 NeedKernelVisit (); // Always need to visit G4 kernel. 00064 G4VViewer::ProcessView (); 00065 00066 if (cutawayUnion) glDisable (GL_CLIP_PLANE2); 00067 } 00068 } 00069 00070 #endif