The same Geant4 application with exactly the same data runs with geant4-01-00-ref-08 but crashes with geant4-01-01-ref-03 when trying to visualize the same boolean volumes. We get a lot of messages like Call caseEE() Call caseIE() Call caseEE() Call caseEE() Call caseEE() Call caseEE() ... ... and then the program crashes with "segmentation fault". The backtrace is : (gdb) backtrace #0 0x84acc3a in BooleanProcessor::assemblePolyhedra () #1 0x84b05ee in BooleanProcessor::execute () #2 0x84b06c2 in HepPolyhedron::add () #3 0x8491d95 in G4UnionSolid::CreatePolyhedron () #4 0x808e12a in G4VSceneHandler::RequestPrimitives () #5 0x808d1d1 in G4VSceneHandler::AddThis () #6 0x808a896 in G4OpenGLSceneHandler::AddThis () #7 0x8491d55 in G4UnionSolid::DescribeYourselfTo () #8 0x80d5107 in G4PhysicalVolumeModel::DescribeSolid () #9 0x80d5066 in G4PhysicalVolumeModel::DescribeAndDescend () #10 0x80d48cd in G4PhysicalVolumeModel::VisitGeometryAndGetVisReps () #11 0x80d50cb in G4PhysicalVolumeModel::DescribeAndDescend () #12 0x80d48cd in G4PhysicalVolumeModel::VisitGeometryAndGetVisReps () #13 0x80d3a7e in G4PhysicalVolumeModel::DescribeYourselfTo () #14 0x808e613 in G4VSceneHandler::ProcessScene () #15 0x808fa7b in G4VViewer::ProcessView () #16 0x80862ca in G4OpenGLImmediateXViewer::DrawView () #17 0x809240b in G4VisManager::Draw () #18 0x80956fd in G4VisManager::RefreshCurrentView () #19 0x850ae55 in G4VisSimpleCommandMessenger<G4VisCommandRefreshView>::SetNewValue () #20 0x84bb91e in G4UIcommand::DoIt () #21 0x84cd3dd in G4UImanager::ApplyCommand () #22 0x84ccb6c in G4UImanager::ApplyCommand () #23 0x84d9515 in G4UIbatch::SessionStart () #24 0x84cc9bb in G4UImanager::ExecuteMacroFile () #25 0x84dae4d in G4UIcontrolMessenger::SetNewValue () #26 0x84bb91e in G4UIcommand::DoIt () #27 0x84cd3dd in G4UImanager::ApplyCommand () #28 0x80554ad in main () #29 0x402a21eb in __libc_start_main (main=0x80550dc <main>, argc=3, argv=0xbffff854, init=0x804cf30 <_init>, fini=0x8534668 <_fini>, rtld_fini=0x4000a610 <_dl_fini>, stack_end=0xbffff84c) at ../sysdeps/generic/libc-start.c:90
Visualization of boolean volumes will be backed out of reference tags until the problem has been understood and fixed.
With greps-V01-01-04 and in the next reference tag and the next release you will be able to visualize boolean solids. If the components share surfaces/edges, you might see only the first component. A full implementation allowing for components with shared surfaces/edges is still outstanding.
The visualization of boolean solids is implemented and will be in the next release Geant4 2.0 due end of June 2000.
